From: John Crispin Date: Mon, 13 Mar 2017 12:30:10 +0000 (+0100) Subject: ipq806x: clean up patches, port missing patches from 4.4 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=1adf51702e94063fb058ce13226ec5a04d15cfd4;p=librecmc%2Flibrecmc.git ipq806x: clean up patches, port missing patches from 4.4 Signed-off-by: John Crispin Signed-off-by: Felix Fietkau --- diff --git a/target/linux/ipq806x/patches-4.9/0001-dtbindings-qcom_adm-Fix-channel-specifiers.patch b/target/linux/ipq806x/patches-4.9/0001-dtbindings-qcom_adm-Fix-channel-specifiers.patch index fb629aea55..2a36a85b82 100644 --- a/target/linux/ipq806x/patches-4.9/0001-dtbindings-qcom_adm-Fix-channel-specifiers.patch +++ b/target/linux/ipq806x/patches-4.9/0001-dtbindings-qcom_adm-Fix-channel-specifiers.patch @@ -1,7 +1,7 @@ -From f275ae09b82aa423d2ea5a2be3ea315c8fcf6143 Mon Sep 17 00:00:00 2001 +From 28d0ed88f536dd639adf1b0c7c08e04be3c8f294 Mon Sep 17 00:00:00 2001 From: Thomas Pedersen Date: Mon, 16 May 2016 17:58:50 -0700 -Subject: [PATCH 01/37] dtbindings: qcom_adm: Fix channel specifiers +Subject: [PATCH 01/69] dtbindings: qcom_adm: Fix channel specifiers Original patch from Andy Gross. @@ -17,7 +17,7 @@ via other means. Signed-off-by: Andy Gross Signed-off-by: Thomas Pedersen --- - Documentation/devicetree/bindings/dma/qcom_adm.txt | 16 ++++++---------- + Documentation/devicetree/bindings/dma/qcom_adm.txt | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) --- a/Documentation/devicetree/bindings/dma/qcom_adm.txt diff --git a/target/linux/ipq806x/patches-4.9/0002-dmaengine-Add-ADM-driver.patch b/target/linux/ipq806x/patches-4.9/0002-dmaengine-Add-ADM-driver.patch index 4b56fed0bb..212a902905 100644 --- a/target/linux/ipq806x/patches-4.9/0002-dmaengine-Add-ADM-driver.patch +++ b/target/linux/ipq806x/patches-4.9/0002-dmaengine-Add-ADM-driver.patch @@ -1,7 +1,7 @@ -From 1d32bf93c8e83db0aca04d2961badef7e86d663b Mon Sep 17 00:00:00 2001 +From 563fa24db4e529c5a3311928d73a8a90531ee527 Mon Sep 17 00:00:00 2001 From: Thomas Pedersen Date: Mon, 16 May 2016 17:58:51 -0700 -Subject: [PATCH 02/37] dmaengine: Add ADM driver +Subject: [PATCH 02/69] dmaengine: Add ADM driver Original patch by Andy Gross. @@ -18,9 +18,9 @@ and also incorporates CRCI (client rate control interface) flow control. Signed-off-by: Andy Gross Signed-off-by: Thomas Pedersen --- - drivers/dma/qcom/Kconfig | 10 + - drivers/dma/qcom/Makefile | 1 + - drivers/dma/qcom/qcom_adm.c | 900 +++++++++++++++++++++++++++++++++++++++++++ + drivers/dma/qcom/Kconfig | 10 + + drivers/dma/qcom/Makefile | 1 + + drivers/dma/qcom/qcom_adm.c | 900 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 911 insertions(+) create mode 100644 drivers/dma/qcom/qcom_adm.c diff --git a/target/linux/ipq806x/patches-4.9/0003-spi-qup-Make-sure-mode-is-only-determined-once.patch b/target/linux/ipq806x/patches-4.9/0003-spi-qup-Make-sure-mode-is-only-determined-once.patch new file mode 100644 index 0000000000..fd9df4448a --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0003-spi-qup-Make-sure-mode-is-only-determined-once.patch @@ -0,0 +1,208 @@ +From 57c4d2626bcb990a2e677b4f769a88c3d8e0911d Mon Sep 17 00:00:00 2001 +From: Andy Gross +Date: Tue, 12 Apr 2016 09:11:47 -0500 +Subject: [PATCH 03/69] spi: qup: Make sure mode is only determined once + +This patch calculates the mode once. All decisions on the current +transaction +is made using the mode instead of use_dma + +Signed-off-by: Andy Gross +--- + drivers/spi/spi-qup.c | 87 ++++++++++++++++++++++----------------------------- + 1 file changed, 37 insertions(+), 50 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -149,12 +149,20 @@ struct spi_qup { + int rx_bytes; + int qup_v1; + +- int use_dma; ++ int mode; + struct dma_slave_config rx_conf; + struct dma_slave_config tx_conf; + }; + + ++static inline bool spi_qup_is_dma_xfer(int mode) ++{ ++ if (mode == QUP_IO_M_MODE_DMOV || mode == QUP_IO_M_MODE_BAM) ++ return true; ++ ++ return false; ++} ++ + static inline bool spi_qup_is_valid_state(struct spi_qup *controller) + { + u32 opstate = readl_relaxed(controller->base + QUP_STATE); +@@ -424,7 +432,7 @@ static irqreturn_t spi_qup_qup_irq(int i + error = -EIO; + } + +- if (!controller->use_dma) { ++ if (!spi_qup_is_dma_xfer(controller->mode)) { + if (opflags & QUP_OP_IN_SERVICE_FLAG) + spi_qup_fifo_read(controller, xfer); + +@@ -443,34 +451,11 @@ static irqreturn_t spi_qup_qup_irq(int i + return IRQ_HANDLED; + } + +-static u32 +-spi_qup_get_mode(struct spi_master *master, struct spi_transfer *xfer) +-{ +- struct spi_qup *qup = spi_master_get_devdata(master); +- u32 mode; +- +- qup->w_size = 4; +- +- if (xfer->bits_per_word <= 8) +- qup->w_size = 1; +- else if (xfer->bits_per_word <= 16) +- qup->w_size = 2; +- +- qup->n_words = xfer->len / qup->w_size; +- +- if (qup->n_words <= (qup->in_fifo_sz / sizeof(u32))) +- mode = QUP_IO_M_MODE_FIFO; +- else +- mode = QUP_IO_M_MODE_BLOCK; +- +- return mode; +-} +- + /* set clock freq ... bits per word */ + static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) + { + struct spi_qup *controller = spi_master_get_devdata(spi->master); +- u32 config, iomode, mode, control; ++ u32 config, iomode, control; + int ret, n_words; + + if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) { +@@ -491,23 +476,22 @@ static int spi_qup_io_config(struct spi_ + return -EIO; + } + +- mode = spi_qup_get_mode(spi->master, xfer); ++ controller->w_size = DIV_ROUND_UP(xfer->bits_per_word, 8); ++ controller->n_words = xfer->len / controller->w_size; + n_words = controller->n_words; + +- if (mode == QUP_IO_M_MODE_FIFO) { ++ if (n_words <= (controller->in_fifo_sz / sizeof(u32))) { ++ controller->mode = QUP_IO_M_MODE_FIFO; + writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT); + writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT); + /* must be zero for FIFO */ + writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); + writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); +- } else if (!controller->use_dma) { +- writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); +- writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); +- /* must be zero for BLOCK and BAM */ +- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); +- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); +- } else { +- mode = QUP_IO_M_MODE_BAM; ++ ++ } else if (spi->master->can_dma && ++ spi->master->can_dma(spi->master, spi, xfer) && ++ spi->master->cur_msg_mapped) { ++ controller->mode = QUP_IO_M_MODE_BAM; + writel_relaxed(0, controller->base + QUP_MX_READ_CNT); + writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); + +@@ -528,19 +512,26 @@ static int spi_qup_io_config(struct spi_ + + writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); + } ++ } else { ++ controller->mode = QUP_IO_M_MODE_BLOCK; ++ writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); ++ writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); ++ /* must be zero for BLOCK and BAM */ ++ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); ++ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); + } + + iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); + /* Set input and output transfer mode */ + iomode &= ~(QUP_IO_M_INPUT_MODE_MASK | QUP_IO_M_OUTPUT_MODE_MASK); + +- if (!controller->use_dma) ++ if (!spi_qup_is_dma_xfer(controller->mode)) + iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN); + else + iomode |= QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN; + +- iomode |= (mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); +- iomode |= (mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); ++ iomode |= (controller->mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); ++ iomode |= (controller->mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); + + writel_relaxed(iomode, controller->base + QUP_IO_M_MODES); + +@@ -581,7 +572,7 @@ static int spi_qup_io_config(struct spi_ + config |= xfer->bits_per_word - 1; + config |= QUP_CONFIG_SPI_MODE; + +- if (controller->use_dma) { ++ if (spi_qup_is_dma_xfer(controller->mode)) { + if (!xfer->tx_buf) + config |= QUP_CONFIG_NO_OUTPUT; + if (!xfer->rx_buf) +@@ -599,7 +590,7 @@ static int spi_qup_io_config(struct spi_ + * status change in BAM mode + */ + +- if (mode == QUP_IO_M_MODE_BAM) ++ if (spi_qup_is_dma_xfer(controller->mode)) + mask = QUP_OP_IN_SERVICE_FLAG | QUP_OP_OUT_SERVICE_FLAG; + + writel_relaxed(mask, controller->base + QUP_OPERATIONAL_MASK); +@@ -633,7 +624,7 @@ static int spi_qup_transfer_one(struct s + controller->tx_bytes = 0; + spin_unlock_irqrestore(&controller->lock, flags); + +- if (controller->use_dma) ++ if (spi_qup_is_dma_xfer(controller->mode)) + ret = spi_qup_do_dma(master, xfer); + else + ret = spi_qup_do_pio(master, xfer); +@@ -657,7 +648,7 @@ exit: + ret = controller->error; + spin_unlock_irqrestore(&controller->lock, flags); + +- if (ret && controller->use_dma) ++ if (ret && spi_qup_is_dma_xfer(controller->mode)) + spi_qup_dma_terminate(master, xfer); + + return ret; +@@ -668,9 +659,7 @@ static bool spi_qup_can_dma(struct spi_m + { + struct spi_qup *qup = spi_master_get_devdata(master); + size_t dma_align = dma_get_cache_alignment(); +- u32 mode; +- +- qup->use_dma = 0; ++ int n_words; + + if (xfer->rx_buf && (xfer->len % qup->in_blk_sz || + IS_ERR_OR_NULL(master->dma_rx) || +@@ -682,12 +671,10 @@ static bool spi_qup_can_dma(struct spi_m + !IS_ALIGNED((size_t)xfer->tx_buf, dma_align))) + return false; + +- mode = spi_qup_get_mode(master, xfer); +- if (mode == QUP_IO_M_MODE_FIFO) ++ n_words = xfer->len / DIV_ROUND_UP(xfer->bits_per_word, 8); ++ if (n_words <= (qup->in_fifo_sz / sizeof(u32))) + return false; + +- qup->use_dma = 1; +- + return true; + } + diff --git a/target/linux/ipq806x/patches-4.9/0004-spi-qup-Fix-transaction-done-signaling.patch b/target/linux/ipq806x/patches-4.9/0004-spi-qup-Fix-transaction-done-signaling.patch new file mode 100644 index 0000000000..5881ffa8b6 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0004-spi-qup-Fix-transaction-done-signaling.patch @@ -0,0 +1,29 @@ +From fbdf80d138f8c7fda8e598287109fb90446d557d Mon Sep 17 00:00:00 2001 +From: Andy Gross +Date: Fri, 29 Jan 2016 22:06:50 -0600 +Subject: [PATCH 04/69] spi: qup: Fix transaction done signaling + +Wait to signal done until we get all of the interrupts we are expecting +to get for a transaction. If we don't wait for the input done flag, we +can be inbetween transactions when the done flag comes in and this can +mess up the next transaction. + +CC: Grant Grundler +CC: Sarthak Kukreti +Signed-off-by: Andy Gross +--- + drivers/spi/spi-qup.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -445,7 +445,8 @@ static irqreturn_t spi_qup_qup_irq(int i + controller->xfer = xfer; + spin_unlock_irqrestore(&controller->lock, flags); + +- if (controller->rx_bytes == xfer->len || error) ++ if ((controller->rx_bytes == xfer->len && ++ (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) + complete(&controller->done); + + return IRQ_HANDLED; diff --git a/target/linux/ipq806x/patches-4.9/0005-spi-qup-Fix-DMA-mode-to-work-correctly.patch b/target/linux/ipq806x/patches-4.9/0005-spi-qup-Fix-DMA-mode-to-work-correctly.patch new file mode 100644 index 0000000000..20ab5c1802 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0005-spi-qup-Fix-DMA-mode-to-work-correctly.patch @@ -0,0 +1,219 @@ +From 1204ea49f3f7ded898d1ee202776093715a9ecf6 Mon Sep 17 00:00:00 2001 +From: Andy Gross +Date: Tue, 2 Feb 2016 17:00:53 -0600 +Subject: [PATCH 05/69] spi: qup: Fix DMA mode to work correctly + +This patch fixes a few issues with the DMA mode. The QUP needs to be +placed in the run mode before the DMA transactions are executed. The +conditions for being able to DMA vary between revisions of the QUP. +This is due to v1.1.1 using ADM DMA and later revisions using BAM. + +Signed-off-by: Andy Gross +--- + drivers/spi/spi-qup.c | 94 +++++++++++++++++++++++++++++++++------------------ + 1 file changed, 62 insertions(+), 32 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -142,6 +142,7 @@ struct spi_qup { + + struct spi_transfer *xfer; + struct completion done; ++ struct completion dma_tx_done; + int error; + int w_size; /* bytes per SPI word */ + int n_words; +@@ -284,16 +285,16 @@ static void spi_qup_fifo_write(struct sp + + static void spi_qup_dma_done(void *data) + { +- struct spi_qup *qup = data; ++ struct completion *done = data; + +- complete(&qup->done); ++ complete(done); + } + + static int spi_qup_prep_sg(struct spi_master *master, struct spi_transfer *xfer, + enum dma_transfer_direction dir, +- dma_async_tx_callback callback) ++ dma_async_tx_callback callback, ++ void *data) + { +- struct spi_qup *qup = spi_master_get_devdata(master); + unsigned long flags = DMA_PREP_INTERRUPT | DMA_PREP_FENCE; + struct dma_async_tx_descriptor *desc; + struct scatterlist *sgl; +@@ -312,11 +313,11 @@ static int spi_qup_prep_sg(struct spi_ma + } + + desc = dmaengine_prep_slave_sg(chan, sgl, nents, dir, flags); +- if (!desc) +- return -EINVAL; ++ if (IS_ERR_OR_NULL(desc)) ++ return desc ? PTR_ERR(desc) : -EINVAL; + + desc->callback = callback; +- desc->callback_param = qup; ++ desc->callback_param = data; + + cookie = dmaengine_submit(desc); + +@@ -332,18 +333,29 @@ static void spi_qup_dma_terminate(struct + dmaengine_terminate_all(master->dma_rx); + } + +-static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer) ++static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer, ++unsigned long timeout) + { ++ struct spi_qup *qup = spi_master_get_devdata(master); + dma_async_tx_callback rx_done = NULL, tx_done = NULL; + int ret; + ++ /* before issuing the descriptors, set the QUP to run */ ++ ret = spi_qup_set_state(qup, QUP_STATE_RUN); ++ if (ret) { ++ dev_warn(qup->dev, "cannot set RUN state\n"); ++ return ret; ++ } ++ + if (xfer->rx_buf) + rx_done = spi_qup_dma_done; +- else if (xfer->tx_buf) ++ ++ if (xfer->tx_buf) + tx_done = spi_qup_dma_done; + + if (xfer->rx_buf) { +- ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done); ++ ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done, ++ &qup->done); + if (ret) + return ret; + +@@ -351,17 +363,25 @@ static int spi_qup_do_dma(struct spi_mas + } + + if (xfer->tx_buf) { +- ret = spi_qup_prep_sg(master, xfer, DMA_MEM_TO_DEV, tx_done); ++ ret = spi_qup_prep_sg(master, xfer, DMA_MEM_TO_DEV, tx_done, ++ &qup->dma_tx_done); + if (ret) + return ret; + + dma_async_issue_pending(master->dma_tx); + } + +- return 0; ++ if (xfer->rx_buf && !wait_for_completion_timeout(&qup->done, timeout)) ++ return -ETIMEDOUT; ++ ++ if (xfer->tx_buf && !wait_for_completion_timeout(&qup->dma_tx_done, timeout)) ++ ret = -ETIMEDOUT; ++ ++ return ret; + } + +-static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer) ++static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer, ++ unsigned long timeout) + { + struct spi_qup *qup = spi_master_get_devdata(master); + int ret; +@@ -380,6 +400,15 @@ static int spi_qup_do_pio(struct spi_mas + + spi_qup_fifo_write(qup, xfer); + ++ ret = spi_qup_set_state(qup, QUP_STATE_RUN); ++ if (ret) { ++ dev_warn(qup->dev, "cannot set RUN state\n"); ++ return ret; ++ } ++ ++ if (!wait_for_completion_timeout(&qup->done, timeout)) ++ return -ETIMEDOUT; ++ + return 0; + } + +@@ -428,7 +457,6 @@ static irqreturn_t spi_qup_qup_irq(int i + dev_warn(controller->dev, "CLK_OVER_RUN\n"); + if (spi_err & SPI_ERROR_CLK_UNDER_RUN) + dev_warn(controller->dev, "CLK_UNDER_RUN\n"); +- + error = -EIO; + } + +@@ -617,6 +645,7 @@ static int spi_qup_transfer_one(struct s + timeout = 100 * msecs_to_jiffies(timeout); + + reinit_completion(&controller->done); ++ reinit_completion(&controller->dma_tx_done); + + spin_lock_irqsave(&controller->lock, flags); + controller->xfer = xfer; +@@ -626,21 +655,13 @@ static int spi_qup_transfer_one(struct s + spin_unlock_irqrestore(&controller->lock, flags); + + if (spi_qup_is_dma_xfer(controller->mode)) +- ret = spi_qup_do_dma(master, xfer); ++ ret = spi_qup_do_dma(master, xfer, timeout); + else +- ret = spi_qup_do_pio(master, xfer); ++ ret = spi_qup_do_pio(master, xfer, timeout); + + if (ret) + goto exit; + +- if (spi_qup_set_state(controller, QUP_STATE_RUN)) { +- dev_warn(controller->dev, "cannot set EXECUTE state\n"); +- goto exit; +- } +- +- if (!wait_for_completion_timeout(&controller->done, timeout)) +- ret = -ETIMEDOUT; +- + exit: + spi_qup_set_state(controller, QUP_STATE_RESET); + spin_lock_irqsave(&controller->lock, flags); +@@ -662,15 +683,23 @@ static bool spi_qup_can_dma(struct spi_m + size_t dma_align = dma_get_cache_alignment(); + int n_words; + +- if (xfer->rx_buf && (xfer->len % qup->in_blk_sz || +- IS_ERR_OR_NULL(master->dma_rx) || +- !IS_ALIGNED((size_t)xfer->rx_buf, dma_align))) +- return false; ++ if (xfer->rx_buf) { ++ if (!IS_ALIGNED((size_t)xfer->rx_buf, dma_align) || ++ IS_ERR_OR_NULL(master->dma_rx)) ++ return false; + +- if (xfer->tx_buf && (xfer->len % qup->out_blk_sz || +- IS_ERR_OR_NULL(master->dma_tx) || +- !IS_ALIGNED((size_t)xfer->tx_buf, dma_align))) +- return false; ++ if (qup->qup_v1 && (xfer->len % qup->in_blk_sz)) ++ return false; ++ } ++ ++ if (xfer->tx_buf) { ++ if (!IS_ALIGNED((size_t)xfer->tx_buf, dma_align) || ++ IS_ERR_OR_NULL(master->dma_tx)) ++ return false; ++ ++ if (qup->qup_v1 && (xfer->len % qup->out_blk_sz)) ++ return false; ++ } + + n_words = xfer->len / DIV_ROUND_UP(xfer->bits_per_word, 8); + if (n_words <= (qup->in_fifo_sz / sizeof(u32))) +@@ -836,6 +865,7 @@ static int spi_qup_probe(struct platform + + spin_lock_init(&controller->lock); + init_completion(&controller->done); ++ init_completion(&controller->dma_tx_done); + + iomode = readl_relaxed(base + QUP_IO_M_MODES); + diff --git a/target/linux/ipq806x/patches-4.9/0006-spi-qup-Fix-block-mode-to-work-correctly.patch b/target/linux/ipq806x/patches-4.9/0006-spi-qup-Fix-block-mode-to-work-correctly.patch new file mode 100644 index 0000000000..e7d0d656bd --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0006-spi-qup-Fix-block-mode-to-work-correctly.patch @@ -0,0 +1,310 @@ +From b56c1e35cc550fd014fa601ca56b964d88fd44a9 Mon Sep 17 00:00:00 2001 +From: Andy Gross +Date: Sun, 31 Jan 2016 21:28:13 -0600 +Subject: [PATCH 06/69] spi: qup: Fix block mode to work correctly + +This patch corrects the behavior of the BLOCK transactions. During block +transactions, the controller must be read/written to in block size transactions. + +Signed-off-by: Andy Gross +--- + drivers/spi/spi-qup.c | 182 +++++++++++++++++++++++++++++++++++++++----------- + 1 file changed, 142 insertions(+), 40 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -82,6 +82,8 @@ + #define QUP_IO_M_MODE_BAM 3 + + /* QUP_OPERATIONAL fields */ ++#define QUP_OP_IN_BLOCK_READ_REQ BIT(13) ++#define QUP_OP_OUT_BLOCK_WRITE_REQ BIT(12) + #define QUP_OP_MAX_INPUT_DONE_FLAG BIT(11) + #define QUP_OP_MAX_OUTPUT_DONE_FLAG BIT(10) + #define QUP_OP_IN_SERVICE_FLAG BIT(9) +@@ -155,6 +157,12 @@ struct spi_qup { + struct dma_slave_config tx_conf; + }; + ++static inline bool spi_qup_is_flag_set(struct spi_qup *controller, u32 flag) ++{ ++ u32 opflag = readl_relaxed(controller->base + QUP_OPERATIONAL); ++ ++ return opflag & flag; ++} + + static inline bool spi_qup_is_dma_xfer(int mode) + { +@@ -216,29 +224,26 @@ static int spi_qup_set_state(struct spi_ + return 0; + } + +-static void spi_qup_fifo_read(struct spi_qup *controller, +- struct spi_transfer *xfer) ++static void spi_qup_read_from_fifo(struct spi_qup *controller, ++ struct spi_transfer *xfer, u32 num_words) + { + u8 *rx_buf = xfer->rx_buf; +- u32 word, state; +- int idx, shift, w_size; +- +- w_size = controller->w_size; ++ int i, shift, num_bytes; ++ u32 word; + +- while (controller->rx_bytes < xfer->len) { +- +- state = readl_relaxed(controller->base + QUP_OPERATIONAL); +- if (0 == (state & QUP_OP_IN_FIFO_NOT_EMPTY)) +- break; ++ for (; num_words; num_words--) { + + word = readl_relaxed(controller->base + QUP_INPUT_FIFO); + ++ num_bytes = min_t(int, xfer->len - controller->rx_bytes, ++ controller->w_size); ++ + if (!rx_buf) { +- controller->rx_bytes += w_size; ++ controller->rx_bytes += num_bytes; + continue; + } + +- for (idx = 0; idx < w_size; idx++, controller->rx_bytes++) { ++ for (i = 0; i < num_bytes; i++, controller->rx_bytes++) { + /* + * The data format depends on bytes per SPI word: + * 4 bytes: 0x12345678 +@@ -246,38 +251,80 @@ static void spi_qup_fifo_read(struct spi + * 1 byte : 0x00000012 + */ + shift = BITS_PER_BYTE; +- shift *= (w_size - idx - 1); ++ shift *= (controller->w_size - i - 1); + rx_buf[controller->rx_bytes] = word >> shift; + } + } + } + +-static void spi_qup_fifo_write(struct spi_qup *controller, ++static void spi_qup_read(struct spi_qup *controller, + struct spi_transfer *xfer) + { +- const u8 *tx_buf = xfer->tx_buf; +- u32 word, state, data; +- int idx, w_size; ++ u32 remainder, words_per_block, num_words; ++ bool is_block_mode = controller->mode == QUP_IO_M_MODE_BLOCK; ++ ++ remainder = DIV_ROUND_UP(xfer->len - controller->rx_bytes, ++ controller->w_size); ++ words_per_block = controller->in_blk_sz >> 2; ++ ++ do { ++ /* ACK by clearing service flag */ ++ writel_relaxed(QUP_OP_IN_SERVICE_FLAG, ++ controller->base + QUP_OPERATIONAL); ++ ++ if (is_block_mode) { ++ num_words = (remainder > words_per_block) ? ++ words_per_block : remainder; ++ } else { ++ if (!spi_qup_is_flag_set(controller, ++ QUP_OP_IN_FIFO_NOT_EMPTY)) ++ break; + +- w_size = controller->w_size; ++ num_words = 1; ++ } ++ ++ /* read up to the maximum transfer size available */ ++ spi_qup_read_from_fifo(controller, xfer, num_words); + +- while (controller->tx_bytes < xfer->len) { ++ remainder -= num_words; + +- state = readl_relaxed(controller->base + QUP_OPERATIONAL); +- if (state & QUP_OP_OUT_FIFO_FULL) ++ /* if block mode, check to see if next block is available */ ++ if (is_block_mode && !spi_qup_is_flag_set(controller, ++ QUP_OP_IN_BLOCK_READ_REQ)) + break; + ++ } while (remainder); ++ ++ /* ++ * Due to extra stickiness of the QUP_OP_IN_SERVICE_FLAG during block ++ * mode reads, it has to be cleared again at the very end ++ */ ++ if (is_block_mode && spi_qup_is_flag_set(controller, ++ QUP_OP_MAX_INPUT_DONE_FLAG)) ++ writel_relaxed(QUP_OP_IN_SERVICE_FLAG, ++ controller->base + QUP_OPERATIONAL); ++ ++} ++ ++static void spi_qup_write_to_fifo(struct spi_qup *controller, ++ struct spi_transfer *xfer, u32 num_words) ++{ ++ const u8 *tx_buf = xfer->tx_buf; ++ int i, num_bytes; ++ u32 word, data; ++ ++ for (; num_words; num_words--) { + word = 0; +- for (idx = 0; idx < w_size; idx++, controller->tx_bytes++) { + +- if (!tx_buf) { +- controller->tx_bytes += w_size; +- break; ++ num_bytes = min_t(int, xfer->len - controller->tx_bytes, ++ controller->w_size); ++ if (tx_buf) ++ for (i = 0; i < num_bytes; i++) { ++ data = tx_buf[controller->tx_bytes + i]; ++ word |= data << (BITS_PER_BYTE * (3 - i)); + } + +- data = tx_buf[controller->tx_bytes]; +- word |= data << (BITS_PER_BYTE * (3 - idx)); +- } ++ controller->tx_bytes += num_bytes; + + writel_relaxed(word, controller->base + QUP_OUTPUT_FIFO); + } +@@ -290,6 +337,44 @@ static void spi_qup_dma_done(void *data) + complete(done); + } + ++static void spi_qup_write(struct spi_qup *controller, ++ struct spi_transfer *xfer) ++{ ++ bool is_block_mode = controller->mode == QUP_IO_M_MODE_BLOCK; ++ u32 remainder, words_per_block, num_words; ++ ++ remainder = DIV_ROUND_UP(xfer->len - controller->tx_bytes, ++ controller->w_size); ++ words_per_block = controller->out_blk_sz >> 2; ++ ++ do { ++ /* ACK by clearing service flag */ ++ writel_relaxed(QUP_OP_OUT_SERVICE_FLAG, ++ controller->base + QUP_OPERATIONAL); ++ ++ if (is_block_mode) { ++ num_words = (remainder > words_per_block) ? ++ words_per_block : remainder; ++ } else { ++ if (spi_qup_is_flag_set(controller, ++ QUP_OP_OUT_FIFO_FULL)) ++ break; ++ ++ num_words = 1; ++ } ++ ++ spi_qup_write_to_fifo(controller, xfer, num_words); ++ ++ remainder -= num_words; ++ ++ /* if block mode, check to see if next block is available */ ++ if (is_block_mode && !spi_qup_is_flag_set(controller, ++ QUP_OP_OUT_BLOCK_WRITE_REQ)) ++ break; ++ ++ } while (remainder); ++} ++ + static int spi_qup_prep_sg(struct spi_master *master, struct spi_transfer *xfer, + enum dma_transfer_direction dir, + dma_async_tx_callback callback, +@@ -347,11 +432,13 @@ unsigned long timeout) + return ret; + } + +- if (xfer->rx_buf) +- rx_done = spi_qup_dma_done; ++ if (!qup->qup_v1) { ++ if (xfer->rx_buf) ++ rx_done = spi_qup_dma_done; + +- if (xfer->tx_buf) +- tx_done = spi_qup_dma_done; ++ if (xfer->tx_buf) ++ tx_done = spi_qup_dma_done; ++ } + + if (xfer->rx_buf) { + ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done, +@@ -398,7 +485,8 @@ static int spi_qup_do_pio(struct spi_mas + return ret; + } + +- spi_qup_fifo_write(qup, xfer); ++ if (qup->mode == QUP_IO_M_MODE_FIFO) ++ spi_qup_write(qup, xfer); + + ret = spi_qup_set_state(qup, QUP_STATE_RUN); + if (ret) { +@@ -431,10 +519,11 @@ static irqreturn_t spi_qup_qup_irq(int i + + writel_relaxed(qup_err, controller->base + QUP_ERROR_FLAGS); + writel_relaxed(spi_err, controller->base + SPI_ERROR_FLAGS); +- writel_relaxed(opflags, controller->base + QUP_OPERATIONAL); + + if (!xfer) { +- dev_err_ratelimited(controller->dev, "unexpected irq %08x %08x %08x\n", ++ writel_relaxed(opflags, controller->base + QUP_OPERATIONAL); ++ dev_err_ratelimited(controller->dev, ++ "unexpected irq %08x %08x %08x\n", + qup_err, spi_err, opflags); + return IRQ_HANDLED; + } +@@ -460,12 +549,20 @@ static irqreturn_t spi_qup_qup_irq(int i + error = -EIO; + } + +- if (!spi_qup_is_dma_xfer(controller->mode)) { ++ if (spi_qup_is_dma_xfer(controller->mode)) { ++ writel_relaxed(opflags, controller->base + QUP_OPERATIONAL); ++ if (opflags & QUP_OP_IN_SERVICE_FLAG && ++ opflags & QUP_OP_MAX_INPUT_DONE_FLAG) ++ complete(&controller->done); ++ if (opflags & QUP_OP_OUT_SERVICE_FLAG && ++ opflags & QUP_OP_MAX_OUTPUT_DONE_FLAG) ++ complete(&controller->dma_tx_done); ++ } else { + if (opflags & QUP_OP_IN_SERVICE_FLAG) +- spi_qup_fifo_read(controller, xfer); ++ spi_qup_read(controller, xfer); + + if (opflags & QUP_OP_OUT_SERVICE_FLAG) +- spi_qup_fifo_write(controller, xfer); ++ spi_qup_write(controller, xfer); + } + + spin_lock_irqsave(&controller->lock, flags); +@@ -473,6 +570,9 @@ static irqreturn_t spi_qup_qup_irq(int i + controller->xfer = xfer; + spin_unlock_irqrestore(&controller->lock, flags); + ++ /* re-read opflags as flags may have changed due to actions above */ ++ opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); ++ + if ((controller->rx_bytes == xfer->len && + (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) + complete(&controller->done); +@@ -516,11 +616,13 @@ static int spi_qup_io_config(struct spi_ + /* must be zero for FIFO */ + writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); + writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); +- + } else if (spi->master->can_dma && + spi->master->can_dma(spi->master, spi, xfer) && + spi->master->cur_msg_mapped) { + controller->mode = QUP_IO_M_MODE_BAM; ++ writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); ++ writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); ++ /* must be zero for BLOCK and BAM */ + writel_relaxed(0, controller->base + QUP_MX_READ_CNT); + writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); + diff --git a/target/linux/ipq806x/patches-4.9/0006-spi-qup-Make-sure-mode-is-only-determined-once.patch b/target/linux/ipq806x/patches-4.9/0006-spi-qup-Make-sure-mode-is-only-determined-once.patch deleted file mode 100644 index 9d99699721..0000000000 --- a/target/linux/ipq806x/patches-4.9/0006-spi-qup-Make-sure-mode-is-only-determined-once.patch +++ /dev/null @@ -1,208 +0,0 @@ -From 2852d6df4b60987f9248c3d36d5fe2462e6556b9 Mon Sep 17 00:00:00 2001 -From: Andy Gross -Date: Tue, 12 Apr 2016 09:11:47 -0500 -Subject: [PATCH 06/37] spi: qup: Make sure mode is only determined once - -This patch calculates the mode once. All decisions on the current -transaction -is made using the mode instead of use_dma - -Signed-off-by: Andy Gross ---- - drivers/spi/spi-qup.c | 87 +++++++++++++++++++++---------------------------- - 1 file changed, 37 insertions(+), 50 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -149,12 +149,20 @@ struct spi_qup { - int rx_bytes; - int qup_v1; - -- int use_dma; -+ int mode; - struct dma_slave_config rx_conf; - struct dma_slave_config tx_conf; - }; - - -+static inline bool spi_qup_is_dma_xfer(int mode) -+{ -+ if (mode == QUP_IO_M_MODE_DMOV || mode == QUP_IO_M_MODE_BAM) -+ return true; -+ -+ return false; -+} -+ - static inline bool spi_qup_is_valid_state(struct spi_qup *controller) - { - u32 opstate = readl_relaxed(controller->base + QUP_STATE); -@@ -424,7 +432,7 @@ static irqreturn_t spi_qup_qup_irq(int i - error = -EIO; - } - -- if (!controller->use_dma) { -+ if (!spi_qup_is_dma_xfer(controller->mode)) { - if (opflags & QUP_OP_IN_SERVICE_FLAG) - spi_qup_fifo_read(controller, xfer); - -@@ -443,34 +451,11 @@ static irqreturn_t spi_qup_qup_irq(int i - return IRQ_HANDLED; - } - --static u32 --spi_qup_get_mode(struct spi_master *master, struct spi_transfer *xfer) --{ -- struct spi_qup *qup = spi_master_get_devdata(master); -- u32 mode; -- -- qup->w_size = 4; -- -- if (xfer->bits_per_word <= 8) -- qup->w_size = 1; -- else if (xfer->bits_per_word <= 16) -- qup->w_size = 2; -- -- qup->n_words = xfer->len / qup->w_size; -- -- if (qup->n_words <= (qup->in_fifo_sz / sizeof(u32))) -- mode = QUP_IO_M_MODE_FIFO; -- else -- mode = QUP_IO_M_MODE_BLOCK; -- -- return mode; --} -- - /* set clock freq ... bits per word */ - static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) - { - struct spi_qup *controller = spi_master_get_devdata(spi->master); -- u32 config, iomode, mode, control; -+ u32 config, iomode, control; - int ret, n_words; - - if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) { -@@ -491,23 +476,22 @@ static int spi_qup_io_config(struct spi_ - return -EIO; - } - -- mode = spi_qup_get_mode(spi->master, xfer); -+ controller->w_size = DIV_ROUND_UP(xfer->bits_per_word, 8); -+ controller->n_words = xfer->len / controller->w_size; - n_words = controller->n_words; - -- if (mode == QUP_IO_M_MODE_FIFO) { -+ if (n_words <= (controller->in_fifo_sz / sizeof(u32))) { -+ controller->mode = QUP_IO_M_MODE_FIFO; - writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT); - writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT); - /* must be zero for FIFO */ - writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); - writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -- } else if (!controller->use_dma) { -- writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); -- writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); -- /* must be zero for BLOCK and BAM */ -- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -- } else { -- mode = QUP_IO_M_MODE_BAM; -+ -+ } else if (spi->master->can_dma && -+ spi->master->can_dma(spi->master, spi, xfer) && -+ spi->master->cur_msg_mapped) { -+ controller->mode = QUP_IO_M_MODE_BAM; - writel_relaxed(0, controller->base + QUP_MX_READ_CNT); - writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); - -@@ -528,19 +512,26 @@ static int spi_qup_io_config(struct spi_ - - writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); - } -+ } else { -+ controller->mode = QUP_IO_M_MODE_BLOCK; -+ writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); -+ writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); -+ /* must be zero for BLOCK and BAM */ -+ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -+ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); - } - - iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); - /* Set input and output transfer mode */ - iomode &= ~(QUP_IO_M_INPUT_MODE_MASK | QUP_IO_M_OUTPUT_MODE_MASK); - -- if (!controller->use_dma) -+ if (!spi_qup_is_dma_xfer(controller->mode)) - iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN); - else - iomode |= QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN; - -- iomode |= (mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); -- iomode |= (mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); -+ iomode |= (controller->mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); -+ iomode |= (controller->mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); - - writel_relaxed(iomode, controller->base + QUP_IO_M_MODES); - -@@ -581,7 +572,7 @@ static int spi_qup_io_config(struct spi_ - config |= xfer->bits_per_word - 1; - config |= QUP_CONFIG_SPI_MODE; - -- if (controller->use_dma) { -+ if (spi_qup_is_dma_xfer(controller->mode)) { - if (!xfer->tx_buf) - config |= QUP_CONFIG_NO_OUTPUT; - if (!xfer->rx_buf) -@@ -599,7 +590,7 @@ static int spi_qup_io_config(struct spi_ - * status change in BAM mode - */ - -- if (mode == QUP_IO_M_MODE_BAM) -+ if (spi_qup_is_dma_xfer(controller->mode)) - mask = QUP_OP_IN_SERVICE_FLAG | QUP_OP_OUT_SERVICE_FLAG; - - writel_relaxed(mask, controller->base + QUP_OPERATIONAL_MASK); -@@ -633,7 +624,7 @@ static int spi_qup_transfer_one(struct s - controller->tx_bytes = 0; - spin_unlock_irqrestore(&controller->lock, flags); - -- if (controller->use_dma) -+ if (spi_qup_is_dma_xfer(controller->mode)) - ret = spi_qup_do_dma(master, xfer); - else - ret = spi_qup_do_pio(master, xfer); -@@ -657,7 +648,7 @@ exit: - ret = controller->error; - spin_unlock_irqrestore(&controller->lock, flags); - -- if (ret && controller->use_dma) -+ if (ret && spi_qup_is_dma_xfer(controller->mode)) - spi_qup_dma_terminate(master, xfer); - - return ret; -@@ -668,9 +659,7 @@ static bool spi_qup_can_dma(struct spi_m - { - struct spi_qup *qup = spi_master_get_devdata(master); - size_t dma_align = dma_get_cache_alignment(); -- u32 mode; -- -- qup->use_dma = 0; -+ int n_words; - - if (xfer->rx_buf && (xfer->len % qup->in_blk_sz || - IS_ERR_OR_NULL(master->dma_rx) || -@@ -682,12 +671,10 @@ static bool spi_qup_can_dma(struct spi_m - !IS_ALIGNED((size_t)xfer->tx_buf, dma_align))) - return false; - -- mode = spi_qup_get_mode(master, xfer); -- if (mode == QUP_IO_M_MODE_FIFO) -+ n_words = xfer->len / DIV_ROUND_UP(xfer->bits_per_word, 8); -+ if (n_words <= (qup->in_fifo_sz / sizeof(u32))) - return false; - -- qup->use_dma = 1; -- - return true; - } - diff --git a/target/linux/ipq806x/patches-4.9/0007-spi-qup-Fix-transaction-done-signaling.patch b/target/linux/ipq806x/patches-4.9/0007-spi-qup-Fix-transaction-done-signaling.patch deleted file mode 100644 index b42f8cdc1a..0000000000 --- a/target/linux/ipq806x/patches-4.9/0007-spi-qup-Fix-transaction-done-signaling.patch +++ /dev/null @@ -1,29 +0,0 @@ -From 826290ee1fd1bcd26b6771f94f6680a4ff8951c4 Mon Sep 17 00:00:00 2001 -From: Andy Gross -Date: Fri, 29 Jan 2016 22:06:50 -0600 -Subject: [PATCH 07/37] spi: qup: Fix transaction done signaling - -Wait to signal done until we get all of the interrupts we are expecting -to get for a transaction. If we don't wait for the input done flag, we -can be inbetween transactions when the done flag comes in and this can -mess up the next transaction. - -CC: Grant Grundler -CC: Sarthak Kukreti -Signed-off-by: Andy Gross ---- - drivers/spi/spi-qup.c | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -445,7 +445,8 @@ static irqreturn_t spi_qup_qup_irq(int i - controller->xfer = xfer; - spin_unlock_irqrestore(&controller->lock, flags); - -- if (controller->rx_bytes == xfer->len || error) -+ if ((controller->rx_bytes == xfer->len && -+ (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) - complete(&controller->done); - - return IRQ_HANDLED; diff --git a/target/linux/ipq806x/patches-4.9/0007-spi-qup-properly-detect-extra-interrupts.patch b/target/linux/ipq806x/patches-4.9/0007-spi-qup-properly-detect-extra-interrupts.patch new file mode 100644 index 0000000000..8a3b027444 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0007-spi-qup-properly-detect-extra-interrupts.patch @@ -0,0 +1,61 @@ +From 0f32f976ebaa7d8643fcd9419f12bc801ba14407 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Thu, 10 Mar 2016 16:44:55 -0600 +Subject: [PATCH 07/69] spi: qup: properly detect extra interrupts + +It's possible for a SPI transaction to complete and get another +interrupt and have it processed on the same spi_transfer before the +transfer_one can set it to NULL. + +This masks unexpected interrupts, so let's set the spi_transfer to +NULL in the interrupt once the transaction is done. So we can +properly detect these bad interrupts and print warning messages. + +Signed-off-by: Matthew McClintock +--- + drivers/spi/spi-qup.c | 15 +++++++++------ + 1 file changed, 9 insertions(+), 6 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -507,6 +507,7 @@ static irqreturn_t spi_qup_qup_irq(int i + u32 opflags, qup_err, spi_err; + unsigned long flags; + int error = 0; ++ bool done = 0; + + spin_lock_irqsave(&controller->lock, flags); + xfer = controller->xfer; +@@ -565,16 +566,19 @@ static irqreturn_t spi_qup_qup_irq(int i + spi_qup_write(controller, xfer); + } + +- spin_lock_irqsave(&controller->lock, flags); +- controller->error = error; +- controller->xfer = xfer; +- spin_unlock_irqrestore(&controller->lock, flags); +- + /* re-read opflags as flags may have changed due to actions above */ + opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); + + if ((controller->rx_bytes == xfer->len && + (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) ++ done = true; ++ ++ spin_lock_irqsave(&controller->lock, flags); ++ controller->error = error; ++ controller->xfer = done ? NULL : xfer; ++ spin_unlock_irqrestore(&controller->lock, flags); ++ ++ if (done) + complete(&controller->done); + + return IRQ_HANDLED; +@@ -767,7 +771,6 @@ static int spi_qup_transfer_one(struct s + exit: + spi_qup_set_state(controller, QUP_STATE_RESET); + spin_lock_irqsave(&controller->lock, flags); +- controller->xfer = NULL; + if (!ret) + ret = controller->error; + spin_unlock_irqrestore(&controller->lock, flags); diff --git a/target/linux/ipq806x/patches-4.9/0008-spi-qup-Fix-DMA-mode-to-work-correctly.patch b/target/linux/ipq806x/patches-4.9/0008-spi-qup-Fix-DMA-mode-to-work-correctly.patch deleted file mode 100644 index d950446837..0000000000 --- a/target/linux/ipq806x/patches-4.9/0008-spi-qup-Fix-DMA-mode-to-work-correctly.patch +++ /dev/null @@ -1,219 +0,0 @@ -From 715d008b67b21fb8bfefaeeefa5b8ddf23777872 Mon Sep 17 00:00:00 2001 -From: Andy Gross -Date: Tue, 2 Feb 2016 17:00:53 -0600 -Subject: [PATCH 08/37] spi: qup: Fix DMA mode to work correctly - -This patch fixes a few issues with the DMA mode. The QUP needs to be -placed in the run mode before the DMA transactions are executed. The -conditions for being able to DMA vary between revisions of the QUP. -This is due to v1.1.1 using ADM DMA and later revisions using BAM. - -Signed-off-by: Andy Gross ---- - drivers/spi/spi-qup.c | 94 ++++++++++++++++++++++++++++++++----------------- - 1 file changed, 62 insertions(+), 32 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -142,6 +142,7 @@ struct spi_qup { - - struct spi_transfer *xfer; - struct completion done; -+ struct completion dma_tx_done; - int error; - int w_size; /* bytes per SPI word */ - int n_words; -@@ -284,16 +285,16 @@ static void spi_qup_fifo_write(struct sp - - static void spi_qup_dma_done(void *data) - { -- struct spi_qup *qup = data; -+ struct completion *done = data; - -- complete(&qup->done); -+ complete(done); - } - - static int spi_qup_prep_sg(struct spi_master *master, struct spi_transfer *xfer, - enum dma_transfer_direction dir, -- dma_async_tx_callback callback) -+ dma_async_tx_callback callback, -+ void *data) - { -- struct spi_qup *qup = spi_master_get_devdata(master); - unsigned long flags = DMA_PREP_INTERRUPT | DMA_PREP_FENCE; - struct dma_async_tx_descriptor *desc; - struct scatterlist *sgl; -@@ -312,11 +313,11 @@ static int spi_qup_prep_sg(struct spi_ma - } - - desc = dmaengine_prep_slave_sg(chan, sgl, nents, dir, flags); -- if (!desc) -- return -EINVAL; -+ if (IS_ERR_OR_NULL(desc)) -+ return desc ? PTR_ERR(desc) : -EINVAL; - - desc->callback = callback; -- desc->callback_param = qup; -+ desc->callback_param = data; - - cookie = dmaengine_submit(desc); - -@@ -332,18 +333,29 @@ static void spi_qup_dma_terminate(struct - dmaengine_terminate_all(master->dma_rx); - } - --static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer) -+static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer, -+unsigned long timeout) - { -+ struct spi_qup *qup = spi_master_get_devdata(master); - dma_async_tx_callback rx_done = NULL, tx_done = NULL; - int ret; - -+ /* before issuing the descriptors, set the QUP to run */ -+ ret = spi_qup_set_state(qup, QUP_STATE_RUN); -+ if (ret) { -+ dev_warn(qup->dev, "cannot set RUN state\n"); -+ return ret; -+ } -+ - if (xfer->rx_buf) - rx_done = spi_qup_dma_done; -- else if (xfer->tx_buf) -+ -+ if (xfer->tx_buf) - tx_done = spi_qup_dma_done; - - if (xfer->rx_buf) { -- ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done); -+ ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done, -+ &qup->done); - if (ret) - return ret; - -@@ -351,17 +363,25 @@ static int spi_qup_do_dma(struct spi_mas - } - - if (xfer->tx_buf) { -- ret = spi_qup_prep_sg(master, xfer, DMA_MEM_TO_DEV, tx_done); -+ ret = spi_qup_prep_sg(master, xfer, DMA_MEM_TO_DEV, tx_done, -+ &qup->dma_tx_done); - if (ret) - return ret; - - dma_async_issue_pending(master->dma_tx); - } - -- return 0; -+ if (xfer->rx_buf && !wait_for_completion_timeout(&qup->done, timeout)) -+ return -ETIMEDOUT; -+ -+ if (xfer->tx_buf && !wait_for_completion_timeout(&qup->dma_tx_done, timeout)) -+ ret = -ETIMEDOUT; -+ -+ return ret; - } - --static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer) -+static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer, -+ unsigned long timeout) - { - struct spi_qup *qup = spi_master_get_devdata(master); - int ret; -@@ -380,6 +400,15 @@ static int spi_qup_do_pio(struct spi_mas - - spi_qup_fifo_write(qup, xfer); - -+ ret = spi_qup_set_state(qup, QUP_STATE_RUN); -+ if (ret) { -+ dev_warn(qup->dev, "cannot set RUN state\n"); -+ return ret; -+ } -+ -+ if (!wait_for_completion_timeout(&qup->done, timeout)) -+ return -ETIMEDOUT; -+ - return 0; - } - -@@ -428,7 +457,6 @@ static irqreturn_t spi_qup_qup_irq(int i - dev_warn(controller->dev, "CLK_OVER_RUN\n"); - if (spi_err & SPI_ERROR_CLK_UNDER_RUN) - dev_warn(controller->dev, "CLK_UNDER_RUN\n"); -- - error = -EIO; - } - -@@ -617,6 +645,7 @@ static int spi_qup_transfer_one(struct s - timeout = 100 * msecs_to_jiffies(timeout); - - reinit_completion(&controller->done); -+ reinit_completion(&controller->dma_tx_done); - - spin_lock_irqsave(&controller->lock, flags); - controller->xfer = xfer; -@@ -626,21 +655,13 @@ static int spi_qup_transfer_one(struct s - spin_unlock_irqrestore(&controller->lock, flags); - - if (spi_qup_is_dma_xfer(controller->mode)) -- ret = spi_qup_do_dma(master, xfer); -+ ret = spi_qup_do_dma(master, xfer, timeout); - else -- ret = spi_qup_do_pio(master, xfer); -+ ret = spi_qup_do_pio(master, xfer, timeout); - - if (ret) - goto exit; - -- if (spi_qup_set_state(controller, QUP_STATE_RUN)) { -- dev_warn(controller->dev, "cannot set EXECUTE state\n"); -- goto exit; -- } -- -- if (!wait_for_completion_timeout(&controller->done, timeout)) -- ret = -ETIMEDOUT; -- - exit: - spi_qup_set_state(controller, QUP_STATE_RESET); - spin_lock_irqsave(&controller->lock, flags); -@@ -662,15 +683,23 @@ static bool spi_qup_can_dma(struct spi_m - size_t dma_align = dma_get_cache_alignment(); - int n_words; - -- if (xfer->rx_buf && (xfer->len % qup->in_blk_sz || -- IS_ERR_OR_NULL(master->dma_rx) || -- !IS_ALIGNED((size_t)xfer->rx_buf, dma_align))) -- return false; -+ if (xfer->rx_buf) { -+ if (!IS_ALIGNED((size_t)xfer->rx_buf, dma_align) || -+ IS_ERR_OR_NULL(master->dma_rx)) -+ return false; - -- if (xfer->tx_buf && (xfer->len % qup->out_blk_sz || -- IS_ERR_OR_NULL(master->dma_tx) || -- !IS_ALIGNED((size_t)xfer->tx_buf, dma_align))) -- return false; -+ if (qup->qup_v1 && (xfer->len % qup->in_blk_sz)) -+ return false; -+ } -+ -+ if (xfer->tx_buf) { -+ if (!IS_ALIGNED((size_t)xfer->tx_buf, dma_align) || -+ IS_ERR_OR_NULL(master->dma_tx)) -+ return false; -+ -+ if (qup->qup_v1 && (xfer->len % qup->out_blk_sz)) -+ return false; -+ } - - n_words = xfer->len / DIV_ROUND_UP(xfer->bits_per_word, 8); - if (n_words <= (qup->in_fifo_sz / sizeof(u32))) -@@ -836,6 +865,7 @@ static int spi_qup_probe(struct platform - - spin_lock_init(&controller->lock); - init_completion(&controller->done); -+ init_completion(&controller->dma_tx_done); - - iomode = readl_relaxed(base + QUP_IO_M_MODES); - diff --git a/target/linux/ipq806x/patches-4.9/0008-spi-qup-don-t-re-read-opflags-to-see-if-transaction-.patch b/target/linux/ipq806x/patches-4.9/0008-spi-qup-don-t-re-read-opflags-to-see-if-transaction-.patch new file mode 100644 index 0000000000..9893596982 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0008-spi-qup-don-t-re-read-opflags-to-see-if-transaction-.patch @@ -0,0 +1,26 @@ +From 9864f39695aefe0831b3c6e86c0dff30489ad580 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Thu, 10 Mar 2016 16:48:27 -0600 +Subject: [PATCH 08/69] spi: qup: don't re-read opflags to see if transaction + is done for reads + +For reads, we will get another interrupt so we need to handle things +then. For writes, we can finish up now. + +Signed-off-by: Matthew McClintock +--- + drivers/spi/spi-qup.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -567,7 +567,8 @@ static irqreturn_t spi_qup_qup_irq(int i + } + + /* re-read opflags as flags may have changed due to actions above */ +- opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); ++ if (opflags & QUP_OP_OUT_SERVICE_FLAG) ++ opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); + + if ((controller->rx_bytes == xfer->len && + (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) diff --git a/target/linux/ipq806x/patches-4.9/0009-spi-qup-Fix-block-mode-to-work-correctly.patch b/target/linux/ipq806x/patches-4.9/0009-spi-qup-Fix-block-mode-to-work-correctly.patch deleted file mode 100644 index 2f316b1a6d..0000000000 --- a/target/linux/ipq806x/patches-4.9/0009-spi-qup-Fix-block-mode-to-work-correctly.patch +++ /dev/null @@ -1,310 +0,0 @@ -From 4dc7631bbf7c7ac7548026ce45d889235e4f5892 Mon Sep 17 00:00:00 2001 -From: Andy Gross -Date: Sun, 31 Jan 2016 21:28:13 -0600 -Subject: [PATCH 09/37] spi: qup: Fix block mode to work correctly - -This patch corrects the behavior of the BLOCK transactions. During block -transactions, the controller must be read/written to in block size transactions. - -Signed-off-by: Andy Gross ---- - drivers/spi/spi-qup.c | 182 ++++++++++++++++++++++++++++++++++++++----------- - 1 file changed, 142 insertions(+), 40 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -82,6 +82,8 @@ - #define QUP_IO_M_MODE_BAM 3 - - /* QUP_OPERATIONAL fields */ -+#define QUP_OP_IN_BLOCK_READ_REQ BIT(13) -+#define QUP_OP_OUT_BLOCK_WRITE_REQ BIT(12) - #define QUP_OP_MAX_INPUT_DONE_FLAG BIT(11) - #define QUP_OP_MAX_OUTPUT_DONE_FLAG BIT(10) - #define QUP_OP_IN_SERVICE_FLAG BIT(9) -@@ -155,6 +157,12 @@ struct spi_qup { - struct dma_slave_config tx_conf; - }; - -+static inline bool spi_qup_is_flag_set(struct spi_qup *controller, u32 flag) -+{ -+ u32 opflag = readl_relaxed(controller->base + QUP_OPERATIONAL); -+ -+ return opflag & flag; -+} - - static inline bool spi_qup_is_dma_xfer(int mode) - { -@@ -216,29 +224,26 @@ static int spi_qup_set_state(struct spi_ - return 0; - } - --static void spi_qup_fifo_read(struct spi_qup *controller, -- struct spi_transfer *xfer) -+static void spi_qup_read_from_fifo(struct spi_qup *controller, -+ struct spi_transfer *xfer, u32 num_words) - { - u8 *rx_buf = xfer->rx_buf; -- u32 word, state; -- int idx, shift, w_size; -- -- w_size = controller->w_size; -+ int i, shift, num_bytes; -+ u32 word; - -- while (controller->rx_bytes < xfer->len) { -- -- state = readl_relaxed(controller->base + QUP_OPERATIONAL); -- if (0 == (state & QUP_OP_IN_FIFO_NOT_EMPTY)) -- break; -+ for (; num_words; num_words--) { - - word = readl_relaxed(controller->base + QUP_INPUT_FIFO); - -+ num_bytes = min_t(int, xfer->len - controller->rx_bytes, -+ controller->w_size); -+ - if (!rx_buf) { -- controller->rx_bytes += w_size; -+ controller->rx_bytes += num_bytes; - continue; - } - -- for (idx = 0; idx < w_size; idx++, controller->rx_bytes++) { -+ for (i = 0; i < num_bytes; i++, controller->rx_bytes++) { - /* - * The data format depends on bytes per SPI word: - * 4 bytes: 0x12345678 -@@ -246,38 +251,80 @@ static void spi_qup_fifo_read(struct spi - * 1 byte : 0x00000012 - */ - shift = BITS_PER_BYTE; -- shift *= (w_size - idx - 1); -+ shift *= (controller->w_size - i - 1); - rx_buf[controller->rx_bytes] = word >> shift; - } - } - } - --static void spi_qup_fifo_write(struct spi_qup *controller, -+static void spi_qup_read(struct spi_qup *controller, - struct spi_transfer *xfer) - { -- const u8 *tx_buf = xfer->tx_buf; -- u32 word, state, data; -- int idx, w_size; -+ u32 remainder, words_per_block, num_words; -+ bool is_block_mode = controller->mode == QUP_IO_M_MODE_BLOCK; -+ -+ remainder = DIV_ROUND_UP(xfer->len - controller->rx_bytes, -+ controller->w_size); -+ words_per_block = controller->in_blk_sz >> 2; -+ -+ do { -+ /* ACK by clearing service flag */ -+ writel_relaxed(QUP_OP_IN_SERVICE_FLAG, -+ controller->base + QUP_OPERATIONAL); -+ -+ if (is_block_mode) { -+ num_words = (remainder > words_per_block) ? -+ words_per_block : remainder; -+ } else { -+ if (!spi_qup_is_flag_set(controller, -+ QUP_OP_IN_FIFO_NOT_EMPTY)) -+ break; - -- w_size = controller->w_size; -+ num_words = 1; -+ } -+ -+ /* read up to the maximum transfer size available */ -+ spi_qup_read_from_fifo(controller, xfer, num_words); - -- while (controller->tx_bytes < xfer->len) { -+ remainder -= num_words; - -- state = readl_relaxed(controller->base + QUP_OPERATIONAL); -- if (state & QUP_OP_OUT_FIFO_FULL) -+ /* if block mode, check to see if next block is available */ -+ if (is_block_mode && !spi_qup_is_flag_set(controller, -+ QUP_OP_IN_BLOCK_READ_REQ)) - break; - -+ } while (remainder); -+ -+ /* -+ * Due to extra stickiness of the QUP_OP_IN_SERVICE_FLAG during block -+ * mode reads, it has to be cleared again at the very end -+ */ -+ if (is_block_mode && spi_qup_is_flag_set(controller, -+ QUP_OP_MAX_INPUT_DONE_FLAG)) -+ writel_relaxed(QUP_OP_IN_SERVICE_FLAG, -+ controller->base + QUP_OPERATIONAL); -+ -+} -+ -+static void spi_qup_write_to_fifo(struct spi_qup *controller, -+ struct spi_transfer *xfer, u32 num_words) -+{ -+ const u8 *tx_buf = xfer->tx_buf; -+ int i, num_bytes; -+ u32 word, data; -+ -+ for (; num_words; num_words--) { - word = 0; -- for (idx = 0; idx < w_size; idx++, controller->tx_bytes++) { - -- if (!tx_buf) { -- controller->tx_bytes += w_size; -- break; -+ num_bytes = min_t(int, xfer->len - controller->tx_bytes, -+ controller->w_size); -+ if (tx_buf) -+ for (i = 0; i < num_bytes; i++) { -+ data = tx_buf[controller->tx_bytes + i]; -+ word |= data << (BITS_PER_BYTE * (3 - i)); - } - -- data = tx_buf[controller->tx_bytes]; -- word |= data << (BITS_PER_BYTE * (3 - idx)); -- } -+ controller->tx_bytes += num_bytes; - - writel_relaxed(word, controller->base + QUP_OUTPUT_FIFO); - } -@@ -290,6 +337,44 @@ static void spi_qup_dma_done(void *data) - complete(done); - } - -+static void spi_qup_write(struct spi_qup *controller, -+ struct spi_transfer *xfer) -+{ -+ bool is_block_mode = controller->mode == QUP_IO_M_MODE_BLOCK; -+ u32 remainder, words_per_block, num_words; -+ -+ remainder = DIV_ROUND_UP(xfer->len - controller->tx_bytes, -+ controller->w_size); -+ words_per_block = controller->out_blk_sz >> 2; -+ -+ do { -+ /* ACK by clearing service flag */ -+ writel_relaxed(QUP_OP_OUT_SERVICE_FLAG, -+ controller->base + QUP_OPERATIONAL); -+ -+ if (is_block_mode) { -+ num_words = (remainder > words_per_block) ? -+ words_per_block : remainder; -+ } else { -+ if (spi_qup_is_flag_set(controller, -+ QUP_OP_OUT_FIFO_FULL)) -+ break; -+ -+ num_words = 1; -+ } -+ -+ spi_qup_write_to_fifo(controller, xfer, num_words); -+ -+ remainder -= num_words; -+ -+ /* if block mode, check to see if next block is available */ -+ if (is_block_mode && !spi_qup_is_flag_set(controller, -+ QUP_OP_OUT_BLOCK_WRITE_REQ)) -+ break; -+ -+ } while (remainder); -+} -+ - static int spi_qup_prep_sg(struct spi_master *master, struct spi_transfer *xfer, - enum dma_transfer_direction dir, - dma_async_tx_callback callback, -@@ -347,11 +432,13 @@ unsigned long timeout) - return ret; - } - -- if (xfer->rx_buf) -- rx_done = spi_qup_dma_done; -+ if (!qup->qup_v1) { -+ if (xfer->rx_buf) -+ rx_done = spi_qup_dma_done; - -- if (xfer->tx_buf) -- tx_done = spi_qup_dma_done; -+ if (xfer->tx_buf) -+ tx_done = spi_qup_dma_done; -+ } - - if (xfer->rx_buf) { - ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done, -@@ -398,7 +485,8 @@ static int spi_qup_do_pio(struct spi_mas - return ret; - } - -- spi_qup_fifo_write(qup, xfer); -+ if (qup->mode == QUP_IO_M_MODE_FIFO) -+ spi_qup_write(qup, xfer); - - ret = spi_qup_set_state(qup, QUP_STATE_RUN); - if (ret) { -@@ -431,10 +519,11 @@ static irqreturn_t spi_qup_qup_irq(int i - - writel_relaxed(qup_err, controller->base + QUP_ERROR_FLAGS); - writel_relaxed(spi_err, controller->base + SPI_ERROR_FLAGS); -- writel_relaxed(opflags, controller->base + QUP_OPERATIONAL); - - if (!xfer) { -- dev_err_ratelimited(controller->dev, "unexpected irq %08x %08x %08x\n", -+ writel_relaxed(opflags, controller->base + QUP_OPERATIONAL); -+ dev_err_ratelimited(controller->dev, -+ "unexpected irq %08x %08x %08x\n", - qup_err, spi_err, opflags); - return IRQ_HANDLED; - } -@@ -460,12 +549,20 @@ static irqreturn_t spi_qup_qup_irq(int i - error = -EIO; - } - -- if (!spi_qup_is_dma_xfer(controller->mode)) { -+ if (spi_qup_is_dma_xfer(controller->mode)) { -+ writel_relaxed(opflags, controller->base + QUP_OPERATIONAL); -+ if (opflags & QUP_OP_IN_SERVICE_FLAG && -+ opflags & QUP_OP_MAX_INPUT_DONE_FLAG) -+ complete(&controller->done); -+ if (opflags & QUP_OP_OUT_SERVICE_FLAG && -+ opflags & QUP_OP_MAX_OUTPUT_DONE_FLAG) -+ complete(&controller->dma_tx_done); -+ } else { - if (opflags & QUP_OP_IN_SERVICE_FLAG) -- spi_qup_fifo_read(controller, xfer); -+ spi_qup_read(controller, xfer); - - if (opflags & QUP_OP_OUT_SERVICE_FLAG) -- spi_qup_fifo_write(controller, xfer); -+ spi_qup_write(controller, xfer); - } - - spin_lock_irqsave(&controller->lock, flags); -@@ -473,6 +570,9 @@ static irqreturn_t spi_qup_qup_irq(int i - controller->xfer = xfer; - spin_unlock_irqrestore(&controller->lock, flags); - -+ /* re-read opflags as flags may have changed due to actions above */ -+ opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); -+ - if ((controller->rx_bytes == xfer->len && - (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) - complete(&controller->done); -@@ -516,11 +616,13 @@ static int spi_qup_io_config(struct spi_ - /* must be zero for FIFO */ - writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); - writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -- - } else if (spi->master->can_dma && - spi->master->can_dma(spi->master, spi, xfer) && - spi->master->cur_msg_mapped) { - controller->mode = QUP_IO_M_MODE_BAM; -+ writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); -+ writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); -+ /* must be zero for BLOCK and BAM */ - writel_relaxed(0, controller->base + QUP_MX_READ_CNT); - writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); - diff --git a/target/linux/ipq806x/patches-4.9/0009-spi-qup-refactor-spi_qup_io_config-in-two-functions.patch b/target/linux/ipq806x/patches-4.9/0009-spi-qup-refactor-spi_qup_io_config-in-two-functions.patch new file mode 100644 index 0000000000..36c225badc --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0009-spi-qup-refactor-spi_qup_io_config-in-two-functions.patch @@ -0,0 +1,202 @@ +From e06f04d55752e460d8f332f28317aebc27ab1b17 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Tue, 26 Apr 2016 12:57:46 -0500 +Subject: [PATCH 09/69] spi: qup: refactor spi_qup_io_config in two functions + +This is preparation for handling transactions larger than 64K-1 bytes in +block mode which is currently unsupported quietly fails. + +We need to break these into two functions 1) prep is called once per +spi_message and 2) io_config is calle once per spi-qup bus transaction + +This is just refactoring, there should be no functional change + +Signed-off-by: Matthew McClintock +--- + drivers/spi/spi-qup.c | 141 ++++++++++++++++++++++++++++++-------------------- + 1 file changed, 86 insertions(+), 55 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -585,12 +585,11 @@ static irqreturn_t spi_qup_qup_irq(int i + return IRQ_HANDLED; + } + +-/* set clock freq ... bits per word */ +-static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) ++/* set clock freq ... bits per word, determine mode */ ++static int spi_qup_io_prep(struct spi_device *spi, struct spi_transfer *xfer) + { + struct spi_qup *controller = spi_master_get_devdata(spi->master); +- u32 config, iomode, control; +- int ret, n_words; ++ int ret; + + if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) { + dev_err(controller->dev, "too big size for loopback %d > %d\n", +@@ -605,56 +604,94 @@ static int spi_qup_io_config(struct spi_ + return -EIO; + } + +- if (spi_qup_set_state(controller, QUP_STATE_RESET)) { +- dev_err(controller->dev, "cannot set RESET state\n"); +- return -EIO; +- } +- + controller->w_size = DIV_ROUND_UP(xfer->bits_per_word, 8); + controller->n_words = xfer->len / controller->w_size; +- n_words = controller->n_words; + +- if (n_words <= (controller->in_fifo_sz / sizeof(u32))) { ++ if (controller->n_words <= (controller->in_fifo_sz / sizeof(u32))) + controller->mode = QUP_IO_M_MODE_FIFO; +- writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT); +- writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT); +- /* must be zero for FIFO */ +- writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); +- writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); +- } else if (spi->master->can_dma && +- spi->master->can_dma(spi->master, spi, xfer) && +- spi->master->cur_msg_mapped) { ++ else if (spi->master->can_dma && ++ spi->master->can_dma(spi->master, spi, xfer) && ++ spi->master->cur_msg_mapped) + controller->mode = QUP_IO_M_MODE_BAM; +- writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); +- writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); +- /* must be zero for BLOCK and BAM */ +- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); +- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); +- +- if (!controller->qup_v1) { +- void __iomem *input_cnt; +- +- input_cnt = controller->base + QUP_MX_INPUT_CNT; +- /* +- * for DMA transfers, both QUP_MX_INPUT_CNT and +- * QUP_MX_OUTPUT_CNT must be zero to all cases but one. +- * That case is a non-balanced transfer when there is +- * only a rx_buf. +- */ +- if (xfer->tx_buf) +- writel_relaxed(0, input_cnt); +- else +- writel_relaxed(n_words, input_cnt); ++ else ++ controller->mode = QUP_IO_M_MODE_BLOCK; ++ ++ return 0; ++} + ++/* prep qup for another spi transaction of specific type */ ++static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) ++{ ++ struct spi_qup *controller = spi_master_get_devdata(spi->master); ++ u32 config, iomode, control; ++ unsigned long flags; ++ ++ reinit_completion(&controller->done); ++ reinit_completion(&controller->dma_tx_done); ++ ++ spin_lock_irqsave(&controller->lock, flags); ++ controller->xfer = xfer; ++ controller->error = 0; ++ controller->rx_bytes = 0; ++ controller->tx_bytes = 0; ++ spin_unlock_irqrestore(&controller->lock, flags); ++ ++ ++ if (spi_qup_set_state(controller, QUP_STATE_RESET)) { ++ dev_err(controller->dev, "cannot set RESET state\n"); ++ return -EIO; ++ } ++ ++ switch (controller->mode) { ++ case QUP_IO_M_MODE_FIFO: ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_READ_CNT); ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_WRITE_CNT); ++ /* must be zero for FIFO */ ++ writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); + writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); +- } +- } else { +- controller->mode = QUP_IO_M_MODE_BLOCK; +- writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); +- writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); +- /* must be zero for BLOCK and BAM */ +- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); +- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); ++ break; ++ case QUP_IO_M_MODE_BAM: ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_INPUT_CNT); ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_OUTPUT_CNT); ++ /* must be zero for BLOCK and BAM */ ++ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); ++ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); ++ if (!controller->qup_v1) { ++ void __iomem *input_cnt; ++ ++ input_cnt = controller->base + QUP_MX_INPUT_CNT; ++ /* ++ * for DMA transfers, both QUP_MX_INPUT_CNT and ++ * QUP_MX_OUTPUT_CNT must be zero to all cases ++ * but one. That case is a non-balanced ++ * transfer when there is only a rx_buf. ++ */ ++ if (xfer->tx_buf) ++ writel_relaxed(0, input_cnt); ++ else ++ writel_relaxed(controller->n_words, ++ input_cnt); ++ ++ writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); ++ } ++ break; ++ case QUP_IO_M_MODE_BLOCK: ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_INPUT_CNT); ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_OUTPUT_CNT); ++ /* must be zero for BLOCK and BAM */ ++ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); ++ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); ++ break; ++ default: ++ dev_err(controller->dev, "unknown mode = %d\n", ++ controller->mode); ++ return -EIO; + } + + iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); +@@ -743,6 +780,10 @@ static int spi_qup_transfer_one(struct s + unsigned long timeout, flags; + int ret = -EIO; + ++ ret = spi_qup_io_prep(spi, xfer); ++ if (ret) ++ return ret; ++ + ret = spi_qup_io_config(spi, xfer); + if (ret) + return ret; +@@ -751,16 +792,6 @@ static int spi_qup_transfer_one(struct s + timeout = DIV_ROUND_UP(xfer->len * 8, timeout); + timeout = 100 * msecs_to_jiffies(timeout); + +- reinit_completion(&controller->done); +- reinit_completion(&controller->dma_tx_done); +- +- spin_lock_irqsave(&controller->lock, flags); +- controller->xfer = xfer; +- controller->error = 0; +- controller->rx_bytes = 0; +- controller->tx_bytes = 0; +- spin_unlock_irqrestore(&controller->lock, flags); +- + if (spi_qup_is_dma_xfer(controller->mode)) + ret = spi_qup_do_dma(master, xfer, timeout); + else diff --git a/target/linux/ipq806x/patches-4.9/0010-spi-qup-call-io_config-in-mode-specific-function.patch b/target/linux/ipq806x/patches-4.9/0010-spi-qup-call-io_config-in-mode-specific-function.patch new file mode 100644 index 0000000000..dfbed620f3 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0010-spi-qup-call-io_config-in-mode-specific-function.patch @@ -0,0 +1,391 @@ +From afe108e638a2dd441b11cd2c7b1e0658bb47b5e8 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Tue, 26 Apr 2016 13:14:45 -0500 +Subject: [PATCH 10/69] spi: qup: call io_config in mode specific function + +DMA transactions should only only need to call io_config only once, but +block mode might call it several times to setup several transactions so +it can handle reads/writes larger than the max size per transaction, so +we move the call to the do_ functions. + +This is just refactoring, there should be no functional change + +Signed-off-by: Matthew McClintock +--- + drivers/spi/spi-qup.c | 327 +++++++++++++++++++++++++------------------------- + 1 file changed, 166 insertions(+), 161 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -418,13 +418,170 @@ static void spi_qup_dma_terminate(struct + dmaengine_terminate_all(master->dma_rx); + } + +-static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer, ++/* prep qup for another spi transaction of specific type */ ++static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) ++{ ++ struct spi_qup *controller = spi_master_get_devdata(spi->master); ++ u32 config, iomode, control; ++ unsigned long flags; ++ ++ reinit_completion(&controller->done); ++ reinit_completion(&controller->dma_tx_done); ++ ++ spin_lock_irqsave(&controller->lock, flags); ++ controller->xfer = xfer; ++ controller->error = 0; ++ controller->rx_bytes = 0; ++ controller->tx_bytes = 0; ++ spin_unlock_irqrestore(&controller->lock, flags); ++ ++ if (spi_qup_set_state(controller, QUP_STATE_RESET)) { ++ dev_err(controller->dev, "cannot set RESET state\n"); ++ return -EIO; ++ } ++ ++ switch (controller->mode) { ++ case QUP_IO_M_MODE_FIFO: ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_READ_CNT); ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_WRITE_CNT); ++ /* must be zero for FIFO */ ++ writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); ++ writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); ++ break; ++ case QUP_IO_M_MODE_BAM: ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_INPUT_CNT); ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_OUTPUT_CNT); ++ /* must be zero for BLOCK and BAM */ ++ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); ++ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); ++ if (!controller->qup_v1) { ++ void __iomem *input_cnt; ++ ++ input_cnt = controller->base + QUP_MX_INPUT_CNT; ++ /* ++ * for DMA transfers, both QUP_MX_INPUT_CNT and ++ * QUP_MX_OUTPUT_CNT must be zero to all cases ++ * but one. That case is a non-balanced ++ * transfer when there is only a rx_buf. ++ */ ++ if (xfer->tx_buf) ++ writel_relaxed(0, input_cnt); ++ else ++ writel_relaxed(controller->n_words, ++ input_cnt); ++ ++ writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); ++ } ++ break; ++ case QUP_IO_M_MODE_BLOCK: ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_INPUT_CNT); ++ writel_relaxed(controller->n_words, ++ controller->base + QUP_MX_OUTPUT_CNT); ++ /* must be zero for BLOCK and BAM */ ++ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); ++ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); ++ break; ++ default: ++ dev_err(controller->dev, "unknown mode = %d\n", ++ controller->mode); ++ return -EIO; ++ } ++ ++ iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); ++ /* Set input and output transfer mode */ ++ iomode &= ~(QUP_IO_M_INPUT_MODE_MASK | QUP_IO_M_OUTPUT_MODE_MASK); ++ ++ if (!spi_qup_is_dma_xfer(controller->mode)) ++ iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN); ++ else ++ iomode |= QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN; ++ ++ iomode |= (controller->mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); ++ iomode |= (controller->mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); ++ ++ writel_relaxed(iomode, controller->base + QUP_IO_M_MODES); ++ ++ control = readl_relaxed(controller->base + SPI_IO_CONTROL); ++ ++ if (spi->mode & SPI_CPOL) ++ control |= SPI_IO_C_CLK_IDLE_HIGH; ++ else ++ control &= ~SPI_IO_C_CLK_IDLE_HIGH; ++ ++ writel_relaxed(control, controller->base + SPI_IO_CONTROL); ++ ++ config = readl_relaxed(controller->base + SPI_CONFIG); ++ ++ if (spi->mode & SPI_LOOP) ++ config |= SPI_CONFIG_LOOPBACK; ++ else ++ config &= ~SPI_CONFIG_LOOPBACK; ++ ++ if (spi->mode & SPI_CPHA) ++ config &= ~SPI_CONFIG_INPUT_FIRST; ++ else ++ config |= SPI_CONFIG_INPUT_FIRST; ++ ++ /* ++ * HS_MODE improves signal stability for spi-clk high rates, ++ * but is invalid in loop back mode. ++ */ ++ if ((xfer->speed_hz >= SPI_HS_MIN_RATE) && !(spi->mode & SPI_LOOP)) ++ config |= SPI_CONFIG_HS_MODE; ++ else ++ config &= ~SPI_CONFIG_HS_MODE; ++ ++ writel_relaxed(config, controller->base + SPI_CONFIG); ++ ++ config = readl_relaxed(controller->base + QUP_CONFIG); ++ config &= ~(QUP_CONFIG_NO_INPUT | QUP_CONFIG_NO_OUTPUT | QUP_CONFIG_N); ++ config |= xfer->bits_per_word - 1; ++ config |= QUP_CONFIG_SPI_MODE; ++ ++ if (spi_qup_is_dma_xfer(controller->mode)) { ++ if (!xfer->tx_buf) ++ config |= QUP_CONFIG_NO_OUTPUT; ++ if (!xfer->rx_buf) ++ config |= QUP_CONFIG_NO_INPUT; ++ } ++ ++ writel_relaxed(config, controller->base + QUP_CONFIG); ++ ++ /* only write to OPERATIONAL_MASK when register is present */ ++ if (!controller->qup_v1) { ++ u32 mask = 0; ++ ++ /* ++ * mask INPUT and OUTPUT service flags to prevent IRQs on FIFO ++ * status change in BAM mode ++ */ ++ ++ if (spi_qup_is_dma_xfer(controller->mode)) ++ mask = QUP_OP_IN_SERVICE_FLAG | QUP_OP_OUT_SERVICE_FLAG; ++ ++ writel_relaxed(mask, controller->base + QUP_OPERATIONAL_MASK); ++ } ++ ++ return 0; ++} ++ ++static int spi_qup_do_dma(struct spi_device *spi, struct spi_transfer *xfer, + unsigned long timeout) + { ++ struct spi_master *master = spi->master; + struct spi_qup *qup = spi_master_get_devdata(master); + dma_async_tx_callback rx_done = NULL, tx_done = NULL; + int ret; + ++ ret = spi_qup_io_config(spi, xfer); ++ if (ret) ++ return ret; ++ + /* before issuing the descriptors, set the QUP to run */ + ret = spi_qup_set_state(qup, QUP_STATE_RUN); + if (ret) { +@@ -467,12 +624,17 @@ unsigned long timeout) + return ret; + } + +-static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer, ++static int spi_qup_do_pio(struct spi_device *spi, struct spi_transfer *xfer, + unsigned long timeout) + { ++ struct spi_master *master = spi->master; + struct spi_qup *qup = spi_master_get_devdata(master); + int ret; + ++ ret = spi_qup_io_config(spi, xfer); ++ if (ret) ++ return ret; ++ + ret = spi_qup_set_state(qup, QUP_STATE_RUN); + if (ret) { + dev_warn(qup->dev, "cannot set RUN state\n"); +@@ -619,159 +781,6 @@ static int spi_qup_io_prep(struct spi_de + return 0; + } + +-/* prep qup for another spi transaction of specific type */ +-static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) +-{ +- struct spi_qup *controller = spi_master_get_devdata(spi->master); +- u32 config, iomode, control; +- unsigned long flags; +- +- reinit_completion(&controller->done); +- reinit_completion(&controller->dma_tx_done); +- +- spin_lock_irqsave(&controller->lock, flags); +- controller->xfer = xfer; +- controller->error = 0; +- controller->rx_bytes = 0; +- controller->tx_bytes = 0; +- spin_unlock_irqrestore(&controller->lock, flags); +- +- +- if (spi_qup_set_state(controller, QUP_STATE_RESET)) { +- dev_err(controller->dev, "cannot set RESET state\n"); +- return -EIO; +- } +- +- switch (controller->mode) { +- case QUP_IO_M_MODE_FIFO: +- writel_relaxed(controller->n_words, +- controller->base + QUP_MX_READ_CNT); +- writel_relaxed(controller->n_words, +- controller->base + QUP_MX_WRITE_CNT); +- /* must be zero for FIFO */ +- writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); +- writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); +- break; +- case QUP_IO_M_MODE_BAM: +- writel_relaxed(controller->n_words, +- controller->base + QUP_MX_INPUT_CNT); +- writel_relaxed(controller->n_words, +- controller->base + QUP_MX_OUTPUT_CNT); +- /* must be zero for BLOCK and BAM */ +- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); +- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); +- if (!controller->qup_v1) { +- void __iomem *input_cnt; +- +- input_cnt = controller->base + QUP_MX_INPUT_CNT; +- /* +- * for DMA transfers, both QUP_MX_INPUT_CNT and +- * QUP_MX_OUTPUT_CNT must be zero to all cases +- * but one. That case is a non-balanced +- * transfer when there is only a rx_buf. +- */ +- if (xfer->tx_buf) +- writel_relaxed(0, input_cnt); +- else +- writel_relaxed(controller->n_words, +- input_cnt); +- +- writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); +- } +- break; +- case QUP_IO_M_MODE_BLOCK: +- writel_relaxed(controller->n_words, +- controller->base + QUP_MX_INPUT_CNT); +- writel_relaxed(controller->n_words, +- controller->base + QUP_MX_OUTPUT_CNT); +- /* must be zero for BLOCK and BAM */ +- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); +- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); +- break; +- default: +- dev_err(controller->dev, "unknown mode = %d\n", +- controller->mode); +- return -EIO; +- } +- +- iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); +- /* Set input and output transfer mode */ +- iomode &= ~(QUP_IO_M_INPUT_MODE_MASK | QUP_IO_M_OUTPUT_MODE_MASK); +- +- if (!spi_qup_is_dma_xfer(controller->mode)) +- iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN); +- else +- iomode |= QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN; +- +- iomode |= (controller->mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); +- iomode |= (controller->mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); +- +- writel_relaxed(iomode, controller->base + QUP_IO_M_MODES); +- +- control = readl_relaxed(controller->base + SPI_IO_CONTROL); +- +- if (spi->mode & SPI_CPOL) +- control |= SPI_IO_C_CLK_IDLE_HIGH; +- else +- control &= ~SPI_IO_C_CLK_IDLE_HIGH; +- +- writel_relaxed(control, controller->base + SPI_IO_CONTROL); +- +- config = readl_relaxed(controller->base + SPI_CONFIG); +- +- if (spi->mode & SPI_LOOP) +- config |= SPI_CONFIG_LOOPBACK; +- else +- config &= ~SPI_CONFIG_LOOPBACK; +- +- if (spi->mode & SPI_CPHA) +- config &= ~SPI_CONFIG_INPUT_FIRST; +- else +- config |= SPI_CONFIG_INPUT_FIRST; +- +- /* +- * HS_MODE improves signal stability for spi-clk high rates, +- * but is invalid in loop back mode. +- */ +- if ((xfer->speed_hz >= SPI_HS_MIN_RATE) && !(spi->mode & SPI_LOOP)) +- config |= SPI_CONFIG_HS_MODE; +- else +- config &= ~SPI_CONFIG_HS_MODE; +- +- writel_relaxed(config, controller->base + SPI_CONFIG); +- +- config = readl_relaxed(controller->base + QUP_CONFIG); +- config &= ~(QUP_CONFIG_NO_INPUT | QUP_CONFIG_NO_OUTPUT | QUP_CONFIG_N); +- config |= xfer->bits_per_word - 1; +- config |= QUP_CONFIG_SPI_MODE; +- +- if (spi_qup_is_dma_xfer(controller->mode)) { +- if (!xfer->tx_buf) +- config |= QUP_CONFIG_NO_OUTPUT; +- if (!xfer->rx_buf) +- config |= QUP_CONFIG_NO_INPUT; +- } +- +- writel_relaxed(config, controller->base + QUP_CONFIG); +- +- /* only write to OPERATIONAL_MASK when register is present */ +- if (!controller->qup_v1) { +- u32 mask = 0; +- +- /* +- * mask INPUT and OUTPUT service flags to prevent IRQs on FIFO +- * status change in BAM mode +- */ +- +- if (spi_qup_is_dma_xfer(controller->mode)) +- mask = QUP_OP_IN_SERVICE_FLAG | QUP_OP_OUT_SERVICE_FLAG; +- +- writel_relaxed(mask, controller->base + QUP_OPERATIONAL_MASK); +- } +- +- return 0; +-} +- + static int spi_qup_transfer_one(struct spi_master *master, + struct spi_device *spi, + struct spi_transfer *xfer) +@@ -784,18 +793,14 @@ static int spi_qup_transfer_one(struct s + if (ret) + return ret; + +- ret = spi_qup_io_config(spi, xfer); +- if (ret) +- return ret; +- + timeout = DIV_ROUND_UP(xfer->speed_hz, MSEC_PER_SEC); + timeout = DIV_ROUND_UP(xfer->len * 8, timeout); + timeout = 100 * msecs_to_jiffies(timeout); + + if (spi_qup_is_dma_xfer(controller->mode)) +- ret = spi_qup_do_dma(master, xfer, timeout); ++ ret = spi_qup_do_dma(spi, xfer, timeout); + else +- ret = spi_qup_do_pio(master, xfer, timeout); ++ ret = spi_qup_do_pio(spi, xfer, timeout); + + if (ret) + goto exit; diff --git a/target/linux/ipq806x/patches-4.9/0010-spi-qup-properly-detect-extra-interrupts.patch b/target/linux/ipq806x/patches-4.9/0010-spi-qup-properly-detect-extra-interrupts.patch deleted file mode 100644 index 74ef25ac16..0000000000 --- a/target/linux/ipq806x/patches-4.9/0010-spi-qup-properly-detect-extra-interrupts.patch +++ /dev/null @@ -1,61 +0,0 @@ -From 543618f5388d487ba88e3d5304c161fc3ccf61d1 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Thu, 10 Mar 2016 16:44:55 -0600 -Subject: [PATCH 10/37] spi: qup: properly detect extra interrupts - -It's possible for a SPI transaction to complete and get another -interrupt and have it processed on the same spi_transfer before the -transfer_one can set it to NULL. - -This masks unexpected interrupts, so let's set the spi_transfer to -NULL in the interrupt once the transaction is done. So we can -properly detect these bad interrupts and print warning messages. - -Signed-off-by: Matthew McClintock ---- - drivers/spi/spi-qup.c | 15 +++++++++------ - 1 file changed, 9 insertions(+), 6 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -507,6 +507,7 @@ static irqreturn_t spi_qup_qup_irq(int i - u32 opflags, qup_err, spi_err; - unsigned long flags; - int error = 0; -+ bool done = 0; - - spin_lock_irqsave(&controller->lock, flags); - xfer = controller->xfer; -@@ -565,16 +566,19 @@ static irqreturn_t spi_qup_qup_irq(int i - spi_qup_write(controller, xfer); - } - -- spin_lock_irqsave(&controller->lock, flags); -- controller->error = error; -- controller->xfer = xfer; -- spin_unlock_irqrestore(&controller->lock, flags); -- - /* re-read opflags as flags may have changed due to actions above */ - opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); - - if ((controller->rx_bytes == xfer->len && - (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) -+ done = true; -+ -+ spin_lock_irqsave(&controller->lock, flags); -+ controller->error = error; -+ controller->xfer = done ? NULL : xfer; -+ spin_unlock_irqrestore(&controller->lock, flags); -+ -+ if (done) - complete(&controller->done); - - return IRQ_HANDLED; -@@ -767,7 +771,6 @@ static int spi_qup_transfer_one(struct s - exit: - spi_qup_set_state(controller, QUP_STATE_RESET); - spin_lock_irqsave(&controller->lock, flags); -- controller->xfer = NULL; - if (!ret) - ret = controller->error; - spin_unlock_irqrestore(&controller->lock, flags); diff --git a/target/linux/ipq806x/patches-4.9/0011-spi-qup-allow-block-mode-to-generate-multiple-transa.patch b/target/linux/ipq806x/patches-4.9/0011-spi-qup-allow-block-mode-to-generate-multiple-transa.patch new file mode 100644 index 0000000000..39a1aecab1 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0011-spi-qup-allow-block-mode-to-generate-multiple-transa.patch @@ -0,0 +1,268 @@ +From 6858a6a75f1ed364764afba938d77bbb57f80559 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Tue, 26 Apr 2016 15:46:24 -0500 +Subject: [PATCH 11/69] spi: qup: allow block mode to generate multiple + transactions + +This let's you write more to the SPI bus than 64K-1 which is important +if the block size of a SPI device is >= 64K or some other device wants +to something larger. + +This has the benefit of completly removing spi_message from the spi-qup +transactions + +Signed-off-by: Matthew McClintock +--- + drivers/spi/spi-qup.c | 120 +++++++++++++++++++++++++++++++------------------- + 1 file changed, 75 insertions(+), 45 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -120,7 +120,7 @@ + + #define SPI_NUM_CHIPSELECTS 4 + +-#define SPI_MAX_DMA_XFER (SZ_64K - 64) ++#define SPI_MAX_XFER (SZ_64K - 64) + + /* high speed mode is when bus rate is greater then 26MHz */ + #define SPI_HS_MIN_RATE 26000000 +@@ -150,6 +150,8 @@ struct spi_qup { + int n_words; + int tx_bytes; + int rx_bytes; ++ const u8 *tx_buf; ++ u8 *rx_buf; + int qup_v1; + + int mode; +@@ -172,6 +174,12 @@ static inline bool spi_qup_is_dma_xfer(i + return false; + } + ++/* get's the transaction size length */ ++static inline unsigned spi_qup_len(struct spi_qup *controller) ++{ ++ return controller->n_words * controller->w_size; ++} ++ + static inline bool spi_qup_is_valid_state(struct spi_qup *controller) + { + u32 opstate = readl_relaxed(controller->base + QUP_STATE); +@@ -224,10 +232,9 @@ static int spi_qup_set_state(struct spi_ + return 0; + } + +-static void spi_qup_read_from_fifo(struct spi_qup *controller, +- struct spi_transfer *xfer, u32 num_words) ++static void spi_qup_read_from_fifo(struct spi_qup *controller, u32 num_words) + { +- u8 *rx_buf = xfer->rx_buf; ++ u8 *rx_buf = controller->rx_buf; + int i, shift, num_bytes; + u32 word; + +@@ -235,7 +242,7 @@ static void spi_qup_read_from_fifo(struc + + word = readl_relaxed(controller->base + QUP_INPUT_FIFO); + +- num_bytes = min_t(int, xfer->len - controller->rx_bytes, ++ num_bytes = min_t(int, spi_qup_len(controller) - controller->rx_bytes, + controller->w_size); + + if (!rx_buf) { +@@ -257,13 +264,12 @@ static void spi_qup_read_from_fifo(struc + } + } + +-static void spi_qup_read(struct spi_qup *controller, +- struct spi_transfer *xfer) ++static void spi_qup_read(struct spi_qup *controller) + { + u32 remainder, words_per_block, num_words; + bool is_block_mode = controller->mode == QUP_IO_M_MODE_BLOCK; + +- remainder = DIV_ROUND_UP(xfer->len - controller->rx_bytes, ++ remainder = DIV_ROUND_UP(spi_qup_len(controller) - controller->rx_bytes, + controller->w_size); + words_per_block = controller->in_blk_sz >> 2; + +@@ -284,7 +290,7 @@ static void spi_qup_read(struct spi_qup + } + + /* read up to the maximum transfer size available */ +- spi_qup_read_from_fifo(controller, xfer, num_words); ++ spi_qup_read_from_fifo(controller, num_words); + + remainder -= num_words; + +@@ -306,17 +312,16 @@ static void spi_qup_read(struct spi_qup + + } + +-static void spi_qup_write_to_fifo(struct spi_qup *controller, +- struct spi_transfer *xfer, u32 num_words) ++static void spi_qup_write_to_fifo(struct spi_qup *controller, u32 num_words) + { +- const u8 *tx_buf = xfer->tx_buf; ++ const u8 *tx_buf = controller->tx_buf; + int i, num_bytes; + u32 word, data; + + for (; num_words; num_words--) { + word = 0; + +- num_bytes = min_t(int, xfer->len - controller->tx_bytes, ++ num_bytes = min_t(int, spi_qup_len(controller) - controller->tx_bytes, + controller->w_size); + if (tx_buf) + for (i = 0; i < num_bytes; i++) { +@@ -337,13 +342,12 @@ static void spi_qup_dma_done(void *data) + complete(done); + } + +-static void spi_qup_write(struct spi_qup *controller, +- struct spi_transfer *xfer) ++static void spi_qup_write(struct spi_qup *controller) + { + bool is_block_mode = controller->mode == QUP_IO_M_MODE_BLOCK; + u32 remainder, words_per_block, num_words; + +- remainder = DIV_ROUND_UP(xfer->len - controller->tx_bytes, ++ remainder = DIV_ROUND_UP(spi_qup_len(controller) - controller->tx_bytes, + controller->w_size); + words_per_block = controller->out_blk_sz >> 2; + +@@ -363,7 +367,7 @@ static void spi_qup_write(struct spi_qup + num_words = 1; + } + +- spi_qup_write_to_fifo(controller, xfer, num_words); ++ spi_qup_write_to_fifo(controller, num_words); + + remainder -= num_words; + +@@ -629,35 +633,61 @@ static int spi_qup_do_pio(struct spi_dev + { + struct spi_master *master = spi->master; + struct spi_qup *qup = spi_master_get_devdata(master); +- int ret; ++ int ret, n_words, iterations, offset = 0; + +- ret = spi_qup_io_config(spi, xfer); +- if (ret) +- return ret; ++ n_words = qup->n_words; ++ iterations = n_words / SPI_MAX_XFER; /* round down */ + +- ret = spi_qup_set_state(qup, QUP_STATE_RUN); +- if (ret) { +- dev_warn(qup->dev, "cannot set RUN state\n"); +- return ret; +- } ++ qup->rx_buf = xfer->rx_buf; ++ qup->tx_buf = xfer->tx_buf; + +- ret = spi_qup_set_state(qup, QUP_STATE_PAUSE); +- if (ret) { +- dev_warn(qup->dev, "cannot set PAUSE state\n"); +- return ret; +- } ++ do { ++ if (iterations) ++ qup->n_words = SPI_MAX_XFER; ++ else ++ qup->n_words = n_words % SPI_MAX_XFER; ++ ++ if (qup->tx_buf && offset) ++ qup->tx_buf = xfer->tx_buf + offset * SPI_MAX_XFER; ++ ++ if (qup->rx_buf && offset) ++ qup->rx_buf = xfer->rx_buf + offset * SPI_MAX_XFER; ++ ++ /* if the transaction is small enough, we need ++ * to fallback to FIFO mode */ ++ if (qup->n_words <= (qup->in_fifo_sz / sizeof(u32))) ++ qup->mode = QUP_IO_M_MODE_FIFO; + +- if (qup->mode == QUP_IO_M_MODE_FIFO) +- spi_qup_write(qup, xfer); ++ ret = spi_qup_io_config(spi, xfer); ++ if (ret) ++ return ret; + +- ret = spi_qup_set_state(qup, QUP_STATE_RUN); +- if (ret) { +- dev_warn(qup->dev, "cannot set RUN state\n"); +- return ret; +- } ++ ret = spi_qup_set_state(qup, QUP_STATE_RUN); ++ if (ret) { ++ dev_warn(qup->dev, "cannot set RUN state\n"); ++ return ret; ++ } + +- if (!wait_for_completion_timeout(&qup->done, timeout)) +- return -ETIMEDOUT; ++ ret = spi_qup_set_state(qup, QUP_STATE_PAUSE); ++ if (ret) { ++ dev_warn(qup->dev, "cannot set PAUSE state\n"); ++ return ret; ++ } ++ ++ if (qup->mode == QUP_IO_M_MODE_FIFO) ++ spi_qup_write(qup); ++ ++ ret = spi_qup_set_state(qup, QUP_STATE_RUN); ++ if (ret) { ++ dev_warn(qup->dev, "cannot set RUN state\n"); ++ return ret; ++ } ++ ++ if (!wait_for_completion_timeout(&qup->done, timeout)) ++ return -ETIMEDOUT; ++ ++ offset++; ++ } while (iterations--); + + return 0; + } +@@ -722,17 +752,17 @@ static irqreturn_t spi_qup_qup_irq(int i + complete(&controller->dma_tx_done); + } else { + if (opflags & QUP_OP_IN_SERVICE_FLAG) +- spi_qup_read(controller, xfer); ++ spi_qup_read(controller); + + if (opflags & QUP_OP_OUT_SERVICE_FLAG) +- spi_qup_write(controller, xfer); ++ spi_qup_write(controller); + } + + /* re-read opflags as flags may have changed due to actions above */ + if (opflags & QUP_OP_OUT_SERVICE_FLAG) + opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); + +- if ((controller->rx_bytes == xfer->len && ++ if ((controller->rx_bytes == spi_qup_len(controller) && + (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) + done = true; + +@@ -794,7 +824,7 @@ static int spi_qup_transfer_one(struct s + return ret; + + timeout = DIV_ROUND_UP(xfer->speed_hz, MSEC_PER_SEC); +- timeout = DIV_ROUND_UP(xfer->len * 8, timeout); ++ timeout = DIV_ROUND_UP(min_t(unsigned long, SPI_MAX_XFER, xfer->len) * 8, timeout); + timeout = 100 * msecs_to_jiffies(timeout); + + if (spi_qup_is_dma_xfer(controller->mode)) +@@ -983,7 +1013,7 @@ static int spi_qup_probe(struct platform + master->dev.of_node = pdev->dev.of_node; + master->auto_runtime_pm = true; + master->dma_alignment = dma_get_cache_alignment(); +- master->max_dma_len = SPI_MAX_DMA_XFER; ++ master->max_dma_len = SPI_MAX_XFER; + + platform_set_drvdata(pdev, master); + diff --git a/target/linux/ipq806x/patches-4.9/0011-spi-qup-don-t-re-read-opflags-to-see-if-transaction-.patch b/target/linux/ipq806x/patches-4.9/0011-spi-qup-don-t-re-read-opflags-to-see-if-transaction-.patch deleted file mode 100644 index da1569fd12..0000000000 --- a/target/linux/ipq806x/patches-4.9/0011-spi-qup-don-t-re-read-opflags-to-see-if-transaction-.patch +++ /dev/null @@ -1,26 +0,0 @@ -From ba96e9449a63acd658d8ad0a5b3755b559410999 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Thu, 10 Mar 2016 16:48:27 -0600 -Subject: [PATCH 11/37] spi: qup: don't re-read opflags to see if transaction - is done for reads - -For reads, we will get another interrupt so we need to handle things -then. For writes, we can finish up now. - -Signed-off-by: Matthew McClintock ---- - drivers/spi/spi-qup.c | 3 ++- - 1 file changed, 2 insertions(+), 1 deletion(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -567,7 +567,8 @@ static irqreturn_t spi_qup_qup_irq(int i - } - - /* re-read opflags as flags may have changed due to actions above */ -- opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); -+ if (opflags & QUP_OP_OUT_SERVICE_FLAG) -+ opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); - - if ((controller->rx_bytes == xfer->len && - (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) diff --git a/target/linux/ipq806x/patches-4.9/0012-spi-qup-refactor-spi_qup_io_config-in-two-functions.patch b/target/linux/ipq806x/patches-4.9/0012-spi-qup-refactor-spi_qup_io_config-in-two-functions.patch deleted file mode 100644 index 7beb5d9701..0000000000 --- a/target/linux/ipq806x/patches-4.9/0012-spi-qup-refactor-spi_qup_io_config-in-two-functions.patch +++ /dev/null @@ -1,202 +0,0 @@ -From ef00ad56d728618203358d9eba7ca8e7eb48e701 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Tue, 26 Apr 2016 12:57:46 -0500 -Subject: [PATCH 12/37] spi: qup: refactor spi_qup_io_config in two functions - -This is preparation for handling transactions larger than 64K-1 bytes in -block mode which is currently unsupported quietly fails. - -We need to break these into two functions 1) prep is called once per -spi_message and 2) io_config is calle once per spi-qup bus transaction - -This is just refactoring, there should be no functional change - -Signed-off-by: Matthew McClintock ---- - drivers/spi/spi-qup.c | 141 ++++++++++++++++++++++++++++++------------------- - 1 file changed, 86 insertions(+), 55 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -585,12 +585,11 @@ static irqreturn_t spi_qup_qup_irq(int i - return IRQ_HANDLED; - } - --/* set clock freq ... bits per word */ --static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) -+/* set clock freq ... bits per word, determine mode */ -+static int spi_qup_io_prep(struct spi_device *spi, struct spi_transfer *xfer) - { - struct spi_qup *controller = spi_master_get_devdata(spi->master); -- u32 config, iomode, control; -- int ret, n_words; -+ int ret; - - if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) { - dev_err(controller->dev, "too big size for loopback %d > %d\n", -@@ -605,56 +604,94 @@ static int spi_qup_io_config(struct spi_ - return -EIO; - } - -- if (spi_qup_set_state(controller, QUP_STATE_RESET)) { -- dev_err(controller->dev, "cannot set RESET state\n"); -- return -EIO; -- } -- - controller->w_size = DIV_ROUND_UP(xfer->bits_per_word, 8); - controller->n_words = xfer->len / controller->w_size; -- n_words = controller->n_words; - -- if (n_words <= (controller->in_fifo_sz / sizeof(u32))) { -+ if (controller->n_words <= (controller->in_fifo_sz / sizeof(u32))) - controller->mode = QUP_IO_M_MODE_FIFO; -- writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT); -- writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT); -- /* must be zero for FIFO */ -- writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); -- writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -- } else if (spi->master->can_dma && -- spi->master->can_dma(spi->master, spi, xfer) && -- spi->master->cur_msg_mapped) { -+ else if (spi->master->can_dma && -+ spi->master->can_dma(spi->master, spi, xfer) && -+ spi->master->cur_msg_mapped) - controller->mode = QUP_IO_M_MODE_BAM; -- writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); -- writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); -- /* must be zero for BLOCK and BAM */ -- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -- -- if (!controller->qup_v1) { -- void __iomem *input_cnt; -- -- input_cnt = controller->base + QUP_MX_INPUT_CNT; -- /* -- * for DMA transfers, both QUP_MX_INPUT_CNT and -- * QUP_MX_OUTPUT_CNT must be zero to all cases but one. -- * That case is a non-balanced transfer when there is -- * only a rx_buf. -- */ -- if (xfer->tx_buf) -- writel_relaxed(0, input_cnt); -- else -- writel_relaxed(n_words, input_cnt); -+ else -+ controller->mode = QUP_IO_M_MODE_BLOCK; -+ -+ return 0; -+} - -+/* prep qup for another spi transaction of specific type */ -+static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) -+{ -+ struct spi_qup *controller = spi_master_get_devdata(spi->master); -+ u32 config, iomode, control; -+ unsigned long flags; -+ -+ reinit_completion(&controller->done); -+ reinit_completion(&controller->dma_tx_done); -+ -+ spin_lock_irqsave(&controller->lock, flags); -+ controller->xfer = xfer; -+ controller->error = 0; -+ controller->rx_bytes = 0; -+ controller->tx_bytes = 0; -+ spin_unlock_irqrestore(&controller->lock, flags); -+ -+ -+ if (spi_qup_set_state(controller, QUP_STATE_RESET)) { -+ dev_err(controller->dev, "cannot set RESET state\n"); -+ return -EIO; -+ } -+ -+ switch (controller->mode) { -+ case QUP_IO_M_MODE_FIFO: -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_READ_CNT); -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_WRITE_CNT); -+ /* must be zero for FIFO */ -+ writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); - writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -- } -- } else { -- controller->mode = QUP_IO_M_MODE_BLOCK; -- writel_relaxed(n_words, controller->base + QUP_MX_INPUT_CNT); -- writel_relaxed(n_words, controller->base + QUP_MX_OUTPUT_CNT); -- /* must be zero for BLOCK and BAM */ -- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -+ break; -+ case QUP_IO_M_MODE_BAM: -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_INPUT_CNT); -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_OUTPUT_CNT); -+ /* must be zero for BLOCK and BAM */ -+ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -+ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -+ if (!controller->qup_v1) { -+ void __iomem *input_cnt; -+ -+ input_cnt = controller->base + QUP_MX_INPUT_CNT; -+ /* -+ * for DMA transfers, both QUP_MX_INPUT_CNT and -+ * QUP_MX_OUTPUT_CNT must be zero to all cases -+ * but one. That case is a non-balanced -+ * transfer when there is only a rx_buf. -+ */ -+ if (xfer->tx_buf) -+ writel_relaxed(0, input_cnt); -+ else -+ writel_relaxed(controller->n_words, -+ input_cnt); -+ -+ writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -+ } -+ break; -+ case QUP_IO_M_MODE_BLOCK: -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_INPUT_CNT); -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_OUTPUT_CNT); -+ /* must be zero for BLOCK and BAM */ -+ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -+ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -+ break; -+ default: -+ dev_err(controller->dev, "unknown mode = %d\n", -+ controller->mode); -+ return -EIO; - } - - iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); -@@ -743,6 +780,10 @@ static int spi_qup_transfer_one(struct s - unsigned long timeout, flags; - int ret = -EIO; - -+ ret = spi_qup_io_prep(spi, xfer); -+ if (ret) -+ return ret; -+ - ret = spi_qup_io_config(spi, xfer); - if (ret) - return ret; -@@ -751,16 +792,6 @@ static int spi_qup_transfer_one(struct s - timeout = DIV_ROUND_UP(xfer->len * 8, timeout); - timeout = 100 * msecs_to_jiffies(timeout); - -- reinit_completion(&controller->done); -- reinit_completion(&controller->dma_tx_done); -- -- spin_lock_irqsave(&controller->lock, flags); -- controller->xfer = xfer; -- controller->error = 0; -- controller->rx_bytes = 0; -- controller->tx_bytes = 0; -- spin_unlock_irqrestore(&controller->lock, flags); -- - if (spi_qup_is_dma_xfer(controller->mode)) - ret = spi_qup_do_dma(master, xfer, timeout); - else diff --git a/target/linux/ipq806x/patches-4.9/0012-spi-qup-refactor-spi_qup_prep_sg-to-be-more-take-spe.patch b/target/linux/ipq806x/patches-4.9/0012-spi-qup-refactor-spi_qup_prep_sg-to-be-more-take-spe.patch new file mode 100644 index 0000000000..990cccd8a6 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0012-spi-qup-refactor-spi_qup_prep_sg-to-be-more-take-spe.patch @@ -0,0 +1,73 @@ +From fca27bd516d30e33b9373a8c61ca4431077e479e Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Wed, 4 May 2016 16:33:42 -0500 +Subject: [PATCH 12/69] spi: qup: refactor spi_qup_prep_sg to be more take + specific sgl and nent + +This is in preparation for splitting DMA into multiple transacations, +this contains no code changes just refactoring. + +Signed-off-by: Matthew McClintock +--- + drivers/spi/spi-qup.c | 28 +++++++++++----------------- + 1 file changed, 11 insertions(+), 17 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -379,27 +379,19 @@ static void spi_qup_write(struct spi_qup + } while (remainder); + } + +-static int spi_qup_prep_sg(struct spi_master *master, struct spi_transfer *xfer, +- enum dma_transfer_direction dir, +- dma_async_tx_callback callback, +- void *data) ++static int spi_qup_prep_sg(struct spi_master *master, struct scatterlist *sgl, ++ unsigned int nents, enum dma_transfer_direction dir, ++ dma_async_tx_callback callback, void *data) + { + unsigned long flags = DMA_PREP_INTERRUPT | DMA_PREP_FENCE; + struct dma_async_tx_descriptor *desc; +- struct scatterlist *sgl; + struct dma_chan *chan; + dma_cookie_t cookie; +- unsigned int nents; + +- if (dir == DMA_MEM_TO_DEV) { ++ if (dir == DMA_MEM_TO_DEV) + chan = master->dma_tx; +- nents = xfer->tx_sg.nents; +- sgl = xfer->tx_sg.sgl; +- } else { ++ else + chan = master->dma_rx; +- nents = xfer->rx_sg.nents; +- sgl = xfer->rx_sg.sgl; +- } + + desc = dmaengine_prep_slave_sg(chan, sgl, nents, dir, flags); + if (IS_ERR_OR_NULL(desc)) +@@ -602,8 +594,9 @@ unsigned long timeout) + } + + if (xfer->rx_buf) { +- ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done, +- &qup->done); ++ ret = spi_qup_prep_sg(master, xfer->rx_sg.sgl, ++ xfer->rx_sg.nents, DMA_DEV_TO_MEM, ++ rx_done, &qup->done); + if (ret) + return ret; + +@@ -611,8 +604,9 @@ unsigned long timeout) + } + + if (xfer->tx_buf) { +- ret = spi_qup_prep_sg(master, xfer, DMA_MEM_TO_DEV, tx_done, +- &qup->dma_tx_done); ++ ret = spi_qup_prep_sg(master, xfer->tx_sg.sgl, ++ xfer->tx_sg.nents, DMA_MEM_TO_DEV, ++ tx_done, &qup->dma_tx_done); + if (ret) + return ret; + diff --git a/target/linux/ipq806x/patches-4.9/0013-spi-qup-allow-mulitple-DMA-transactions-per-spi-xfer.patch b/target/linux/ipq806x/patches-4.9/0013-spi-qup-allow-mulitple-DMA-transactions-per-spi-xfer.patch new file mode 100644 index 0000000000..13e199c52d --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0013-spi-qup-allow-mulitple-DMA-transactions-per-spi-xfer.patch @@ -0,0 +1,166 @@ +From 028f915b20ec343dda88f1bcc99f07f6b428b4aa Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Thu, 5 May 2016 10:07:11 -0500 +Subject: [PATCH 13/69] spi: qup: allow mulitple DMA transactions per spi xfer + +Much like the block mode changes, we are breaking up DMA transactions +into 64K chunks so we can reset the QUP engine. + +Signed-off-by: Matthew McClintock +--- + drivers/spi/spi-qup.c | 120 ++++++++++++++++++++++++++++++++++++-------------- + 1 file changed, 86 insertions(+), 34 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -566,6 +566,21 @@ static int spi_qup_io_config(struct spi_ + return 0; + } + ++static unsigned int spi_qup_sgl_get_size(struct scatterlist *sgl, unsigned int nents) ++{ ++ struct scatterlist *sg; ++ int i; ++ unsigned int length = 0; ++ ++ if (!nents) ++ return 0; ++ ++ for_each_sg(sgl, sg, nents, i) ++ length += sg_dma_len(sg); ++ ++ return length; ++} ++ + static int spi_qup_do_dma(struct spi_device *spi, struct spi_transfer *xfer, + unsigned long timeout) + { +@@ -573,53 +588,90 @@ unsigned long timeout) + struct spi_qup *qup = spi_master_get_devdata(master); + dma_async_tx_callback rx_done = NULL, tx_done = NULL; + int ret; ++ struct scatterlist *tx_sgl, *rx_sgl; + +- ret = spi_qup_io_config(spi, xfer); +- if (ret) +- return ret; +- +- /* before issuing the descriptors, set the QUP to run */ +- ret = spi_qup_set_state(qup, QUP_STATE_RUN); +- if (ret) { +- dev_warn(qup->dev, "cannot set RUN state\n"); +- return ret; +- } +- +- if (!qup->qup_v1) { +- if (xfer->rx_buf) +- rx_done = spi_qup_dma_done; +- +- if (xfer->tx_buf) +- tx_done = spi_qup_dma_done; +- } +- +- if (xfer->rx_buf) { +- ret = spi_qup_prep_sg(master, xfer->rx_sg.sgl, +- xfer->rx_sg.nents, DMA_DEV_TO_MEM, +- rx_done, &qup->done); +- if (ret) +- return ret; ++ rx_sgl = xfer->rx_sg.sgl; ++ tx_sgl = xfer->tx_sg.sgl; + +- dma_async_issue_pending(master->dma_rx); +- } ++ do { ++ int rx_nents = 0, tx_nents = 0; + +- if (xfer->tx_buf) { +- ret = spi_qup_prep_sg(master, xfer->tx_sg.sgl, +- xfer->tx_sg.nents, DMA_MEM_TO_DEV, +- tx_done, &qup->dma_tx_done); ++ if (rx_sgl) { ++ rx_nents = sg_nents_for_len(rx_sgl, SPI_MAX_XFER); ++ if (rx_nents < 0) ++ rx_nents = sg_nents(rx_sgl); ++ ++ qup->n_words = spi_qup_sgl_get_size(rx_sgl, rx_nents) / ++ qup->w_size; ++ } ++ ++ if (tx_sgl) { ++ tx_nents = sg_nents_for_len(tx_sgl, SPI_MAX_XFER); ++ if (tx_nents < 0) ++ tx_nents = sg_nents(tx_sgl); ++ ++ qup->n_words = spi_qup_sgl_get_size(tx_sgl, tx_nents) / ++ qup->w_size; ++ } ++ ++ ++ ret = spi_qup_io_config(spi, xfer); + if (ret) + return ret; + +- dma_async_issue_pending(master->dma_tx); +- } ++ /* before issuing the descriptors, set the QUP to run */ ++ ret = spi_qup_set_state(qup, QUP_STATE_RUN); ++ if (ret) { ++ dev_warn(qup->dev, "cannot set RUN state\n"); ++ return ret; ++ } ++ ++ if (!qup->qup_v1) { ++ if (rx_sgl) { ++ rx_done = spi_qup_dma_done; ++ } ++ ++ if (tx_sgl) { ++ tx_done = spi_qup_dma_done; ++ } ++ } ++ ++ if (rx_sgl) { ++ ret = spi_qup_prep_sg(master, rx_sgl, rx_nents, ++ DMA_DEV_TO_MEM, rx_done, ++ &qup->done); ++ if (ret) ++ return ret; ++ ++ dma_async_issue_pending(master->dma_rx); ++ } ++ ++ if (tx_sgl) { ++ ret = spi_qup_prep_sg(master, tx_sgl, tx_nents, ++ DMA_MEM_TO_DEV, tx_done, ++ &qup->dma_tx_done); ++ if (ret) ++ return ret; ++ ++ dma_async_issue_pending(master->dma_tx); ++ } ++ ++ if (rx_sgl && !wait_for_completion_timeout(&qup->done, timeout)) { ++ pr_emerg(" rx timed out"); ++ return -ETIMEDOUT; ++ } ++ ++ if (tx_sgl && !wait_for_completion_timeout(&qup->dma_tx_done, timeout)) { ++ pr_emerg(" tx timed out\n"); ++ return -ETIMEDOUT; ++ } + +- if (xfer->rx_buf && !wait_for_completion_timeout(&qup->done, timeout)) +- return -ETIMEDOUT; ++ for (; rx_sgl && rx_nents--; rx_sgl = sg_next(rx_sgl)); ++ for (; tx_sgl && tx_nents--; tx_sgl = sg_next(tx_sgl)); + +- if (xfer->tx_buf && !wait_for_completion_timeout(&qup->dma_tx_done, timeout)) +- ret = -ETIMEDOUT; ++ } while (rx_sgl || tx_sgl); + +- return ret; ++ return 0; + } + + static int spi_qup_do_pio(struct spi_device *spi, struct spi_transfer *xfer, diff --git a/target/linux/ipq806x/patches-4.9/0013-spi-qup-call-io_config-in-mode-specific-function.patch b/target/linux/ipq806x/patches-4.9/0013-spi-qup-call-io_config-in-mode-specific-function.patch deleted file mode 100644 index 3aebaaca17..0000000000 --- a/target/linux/ipq806x/patches-4.9/0013-spi-qup-call-io_config-in-mode-specific-function.patch +++ /dev/null @@ -1,391 +0,0 @@ -From 9263d98e255e1d51b41c752d53e39877728a9419 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Tue, 26 Apr 2016 13:14:45 -0500 -Subject: [PATCH 13/37] spi: qup: call io_config in mode specific function - -DMA transactions should only only need to call io_config only once, but -block mode might call it several times to setup several transactions so -it can handle reads/writes larger than the max size per transaction, so -we move the call to the do_ functions. - -This is just refactoring, there should be no functional change - -Signed-off-by: Matthew McClintock ---- - drivers/spi/spi-qup.c | 327 +++++++++++++++++++++++++------------------------ - 1 file changed, 166 insertions(+), 161 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -418,13 +418,170 @@ static void spi_qup_dma_terminate(struct - dmaengine_terminate_all(master->dma_rx); - } - --static int spi_qup_do_dma(struct spi_master *master, struct spi_transfer *xfer, -+/* prep qup for another spi transaction of specific type */ -+static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) -+{ -+ struct spi_qup *controller = spi_master_get_devdata(spi->master); -+ u32 config, iomode, control; -+ unsigned long flags; -+ -+ reinit_completion(&controller->done); -+ reinit_completion(&controller->dma_tx_done); -+ -+ spin_lock_irqsave(&controller->lock, flags); -+ controller->xfer = xfer; -+ controller->error = 0; -+ controller->rx_bytes = 0; -+ controller->tx_bytes = 0; -+ spin_unlock_irqrestore(&controller->lock, flags); -+ -+ if (spi_qup_set_state(controller, QUP_STATE_RESET)) { -+ dev_err(controller->dev, "cannot set RESET state\n"); -+ return -EIO; -+ } -+ -+ switch (controller->mode) { -+ case QUP_IO_M_MODE_FIFO: -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_READ_CNT); -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_WRITE_CNT); -+ /* must be zero for FIFO */ -+ writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); -+ writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -+ break; -+ case QUP_IO_M_MODE_BAM: -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_INPUT_CNT); -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_OUTPUT_CNT); -+ /* must be zero for BLOCK and BAM */ -+ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -+ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -+ if (!controller->qup_v1) { -+ void __iomem *input_cnt; -+ -+ input_cnt = controller->base + QUP_MX_INPUT_CNT; -+ /* -+ * for DMA transfers, both QUP_MX_INPUT_CNT and -+ * QUP_MX_OUTPUT_CNT must be zero to all cases -+ * but one. That case is a non-balanced -+ * transfer when there is only a rx_buf. -+ */ -+ if (xfer->tx_buf) -+ writel_relaxed(0, input_cnt); -+ else -+ writel_relaxed(controller->n_words, -+ input_cnt); -+ -+ writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -+ } -+ break; -+ case QUP_IO_M_MODE_BLOCK: -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_INPUT_CNT); -+ writel_relaxed(controller->n_words, -+ controller->base + QUP_MX_OUTPUT_CNT); -+ /* must be zero for BLOCK and BAM */ -+ writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -+ writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -+ break; -+ default: -+ dev_err(controller->dev, "unknown mode = %d\n", -+ controller->mode); -+ return -EIO; -+ } -+ -+ iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); -+ /* Set input and output transfer mode */ -+ iomode &= ~(QUP_IO_M_INPUT_MODE_MASK | QUP_IO_M_OUTPUT_MODE_MASK); -+ -+ if (!spi_qup_is_dma_xfer(controller->mode)) -+ iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN); -+ else -+ iomode |= QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN; -+ -+ iomode |= (controller->mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); -+ iomode |= (controller->mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); -+ -+ writel_relaxed(iomode, controller->base + QUP_IO_M_MODES); -+ -+ control = readl_relaxed(controller->base + SPI_IO_CONTROL); -+ -+ if (spi->mode & SPI_CPOL) -+ control |= SPI_IO_C_CLK_IDLE_HIGH; -+ else -+ control &= ~SPI_IO_C_CLK_IDLE_HIGH; -+ -+ writel_relaxed(control, controller->base + SPI_IO_CONTROL); -+ -+ config = readl_relaxed(controller->base + SPI_CONFIG); -+ -+ if (spi->mode & SPI_LOOP) -+ config |= SPI_CONFIG_LOOPBACK; -+ else -+ config &= ~SPI_CONFIG_LOOPBACK; -+ -+ if (spi->mode & SPI_CPHA) -+ config &= ~SPI_CONFIG_INPUT_FIRST; -+ else -+ config |= SPI_CONFIG_INPUT_FIRST; -+ -+ /* -+ * HS_MODE improves signal stability for spi-clk high rates, -+ * but is invalid in loop back mode. -+ */ -+ if ((xfer->speed_hz >= SPI_HS_MIN_RATE) && !(spi->mode & SPI_LOOP)) -+ config |= SPI_CONFIG_HS_MODE; -+ else -+ config &= ~SPI_CONFIG_HS_MODE; -+ -+ writel_relaxed(config, controller->base + SPI_CONFIG); -+ -+ config = readl_relaxed(controller->base + QUP_CONFIG); -+ config &= ~(QUP_CONFIG_NO_INPUT | QUP_CONFIG_NO_OUTPUT | QUP_CONFIG_N); -+ config |= xfer->bits_per_word - 1; -+ config |= QUP_CONFIG_SPI_MODE; -+ -+ if (spi_qup_is_dma_xfer(controller->mode)) { -+ if (!xfer->tx_buf) -+ config |= QUP_CONFIG_NO_OUTPUT; -+ if (!xfer->rx_buf) -+ config |= QUP_CONFIG_NO_INPUT; -+ } -+ -+ writel_relaxed(config, controller->base + QUP_CONFIG); -+ -+ /* only write to OPERATIONAL_MASK when register is present */ -+ if (!controller->qup_v1) { -+ u32 mask = 0; -+ -+ /* -+ * mask INPUT and OUTPUT service flags to prevent IRQs on FIFO -+ * status change in BAM mode -+ */ -+ -+ if (spi_qup_is_dma_xfer(controller->mode)) -+ mask = QUP_OP_IN_SERVICE_FLAG | QUP_OP_OUT_SERVICE_FLAG; -+ -+ writel_relaxed(mask, controller->base + QUP_OPERATIONAL_MASK); -+ } -+ -+ return 0; -+} -+ -+static int spi_qup_do_dma(struct spi_device *spi, struct spi_transfer *xfer, - unsigned long timeout) - { -+ struct spi_master *master = spi->master; - struct spi_qup *qup = spi_master_get_devdata(master); - dma_async_tx_callback rx_done = NULL, tx_done = NULL; - int ret; - -+ ret = spi_qup_io_config(spi, xfer); -+ if (ret) -+ return ret; -+ - /* before issuing the descriptors, set the QUP to run */ - ret = spi_qup_set_state(qup, QUP_STATE_RUN); - if (ret) { -@@ -467,12 +624,17 @@ unsigned long timeout) - return ret; - } - --static int spi_qup_do_pio(struct spi_master *master, struct spi_transfer *xfer, -+static int spi_qup_do_pio(struct spi_device *spi, struct spi_transfer *xfer, - unsigned long timeout) - { -+ struct spi_master *master = spi->master; - struct spi_qup *qup = spi_master_get_devdata(master); - int ret; - -+ ret = spi_qup_io_config(spi, xfer); -+ if (ret) -+ return ret; -+ - ret = spi_qup_set_state(qup, QUP_STATE_RUN); - if (ret) { - dev_warn(qup->dev, "cannot set RUN state\n"); -@@ -619,159 +781,6 @@ static int spi_qup_io_prep(struct spi_de - return 0; - } - --/* prep qup for another spi transaction of specific type */ --static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) --{ -- struct spi_qup *controller = spi_master_get_devdata(spi->master); -- u32 config, iomode, control; -- unsigned long flags; -- -- reinit_completion(&controller->done); -- reinit_completion(&controller->dma_tx_done); -- -- spin_lock_irqsave(&controller->lock, flags); -- controller->xfer = xfer; -- controller->error = 0; -- controller->rx_bytes = 0; -- controller->tx_bytes = 0; -- spin_unlock_irqrestore(&controller->lock, flags); -- -- -- if (spi_qup_set_state(controller, QUP_STATE_RESET)) { -- dev_err(controller->dev, "cannot set RESET state\n"); -- return -EIO; -- } -- -- switch (controller->mode) { -- case QUP_IO_M_MODE_FIFO: -- writel_relaxed(controller->n_words, -- controller->base + QUP_MX_READ_CNT); -- writel_relaxed(controller->n_words, -- controller->base + QUP_MX_WRITE_CNT); -- /* must be zero for FIFO */ -- writel_relaxed(0, controller->base + QUP_MX_INPUT_CNT); -- writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -- break; -- case QUP_IO_M_MODE_BAM: -- writel_relaxed(controller->n_words, -- controller->base + QUP_MX_INPUT_CNT); -- writel_relaxed(controller->n_words, -- controller->base + QUP_MX_OUTPUT_CNT); -- /* must be zero for BLOCK and BAM */ -- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -- if (!controller->qup_v1) { -- void __iomem *input_cnt; -- -- input_cnt = controller->base + QUP_MX_INPUT_CNT; -- /* -- * for DMA transfers, both QUP_MX_INPUT_CNT and -- * QUP_MX_OUTPUT_CNT must be zero to all cases -- * but one. That case is a non-balanced -- * transfer when there is only a rx_buf. -- */ -- if (xfer->tx_buf) -- writel_relaxed(0, input_cnt); -- else -- writel_relaxed(controller->n_words, -- input_cnt); -- -- writel_relaxed(0, controller->base + QUP_MX_OUTPUT_CNT); -- } -- break; -- case QUP_IO_M_MODE_BLOCK: -- writel_relaxed(controller->n_words, -- controller->base + QUP_MX_INPUT_CNT); -- writel_relaxed(controller->n_words, -- controller->base + QUP_MX_OUTPUT_CNT); -- /* must be zero for BLOCK and BAM */ -- writel_relaxed(0, controller->base + QUP_MX_READ_CNT); -- writel_relaxed(0, controller->base + QUP_MX_WRITE_CNT); -- break; -- default: -- dev_err(controller->dev, "unknown mode = %d\n", -- controller->mode); -- return -EIO; -- } -- -- iomode = readl_relaxed(controller->base + QUP_IO_M_MODES); -- /* Set input and output transfer mode */ -- iomode &= ~(QUP_IO_M_INPUT_MODE_MASK | QUP_IO_M_OUTPUT_MODE_MASK); -- -- if (!spi_qup_is_dma_xfer(controller->mode)) -- iomode &= ~(QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN); -- else -- iomode |= QUP_IO_M_PACK_EN | QUP_IO_M_UNPACK_EN; -- -- iomode |= (controller->mode << QUP_IO_M_OUTPUT_MODE_MASK_SHIFT); -- iomode |= (controller->mode << QUP_IO_M_INPUT_MODE_MASK_SHIFT); -- -- writel_relaxed(iomode, controller->base + QUP_IO_M_MODES); -- -- control = readl_relaxed(controller->base + SPI_IO_CONTROL); -- -- if (spi->mode & SPI_CPOL) -- control |= SPI_IO_C_CLK_IDLE_HIGH; -- else -- control &= ~SPI_IO_C_CLK_IDLE_HIGH; -- -- writel_relaxed(control, controller->base + SPI_IO_CONTROL); -- -- config = readl_relaxed(controller->base + SPI_CONFIG); -- -- if (spi->mode & SPI_LOOP) -- config |= SPI_CONFIG_LOOPBACK; -- else -- config &= ~SPI_CONFIG_LOOPBACK; -- -- if (spi->mode & SPI_CPHA) -- config &= ~SPI_CONFIG_INPUT_FIRST; -- else -- config |= SPI_CONFIG_INPUT_FIRST; -- -- /* -- * HS_MODE improves signal stability for spi-clk high rates, -- * but is invalid in loop back mode. -- */ -- if ((xfer->speed_hz >= SPI_HS_MIN_RATE) && !(spi->mode & SPI_LOOP)) -- config |= SPI_CONFIG_HS_MODE; -- else -- config &= ~SPI_CONFIG_HS_MODE; -- -- writel_relaxed(config, controller->base + SPI_CONFIG); -- -- config = readl_relaxed(controller->base + QUP_CONFIG); -- config &= ~(QUP_CONFIG_NO_INPUT | QUP_CONFIG_NO_OUTPUT | QUP_CONFIG_N); -- config |= xfer->bits_per_word - 1; -- config |= QUP_CONFIG_SPI_MODE; -- -- if (spi_qup_is_dma_xfer(controller->mode)) { -- if (!xfer->tx_buf) -- config |= QUP_CONFIG_NO_OUTPUT; -- if (!xfer->rx_buf) -- config |= QUP_CONFIG_NO_INPUT; -- } -- -- writel_relaxed(config, controller->base + QUP_CONFIG); -- -- /* only write to OPERATIONAL_MASK when register is present */ -- if (!controller->qup_v1) { -- u32 mask = 0; -- -- /* -- * mask INPUT and OUTPUT service flags to prevent IRQs on FIFO -- * status change in BAM mode -- */ -- -- if (spi_qup_is_dma_xfer(controller->mode)) -- mask = QUP_OP_IN_SERVICE_FLAG | QUP_OP_OUT_SERVICE_FLAG; -- -- writel_relaxed(mask, controller->base + QUP_OPERATIONAL_MASK); -- } -- -- return 0; --} -- - static int spi_qup_transfer_one(struct spi_master *master, - struct spi_device *spi, - struct spi_transfer *xfer) -@@ -784,18 +793,14 @@ static int spi_qup_transfer_one(struct s - if (ret) - return ret; - -- ret = spi_qup_io_config(spi, xfer); -- if (ret) -- return ret; -- - timeout = DIV_ROUND_UP(xfer->speed_hz, MSEC_PER_SEC); - timeout = DIV_ROUND_UP(xfer->len * 8, timeout); - timeout = 100 * msecs_to_jiffies(timeout); - - if (spi_qup_is_dma_xfer(controller->mode)) -- ret = spi_qup_do_dma(master, xfer, timeout); -+ ret = spi_qup_do_dma(spi, xfer, timeout); - else -- ret = spi_qup_do_pio(master, xfer, timeout); -+ ret = spi_qup_do_pio(spi, xfer, timeout); - - if (ret) - goto exit; diff --git a/target/linux/ipq806x/patches-4.9/0014-spi-qup-Fix-sg-nents-calculation.patch b/target/linux/ipq806x/patches-4.9/0014-spi-qup-Fix-sg-nents-calculation.patch new file mode 100644 index 0000000000..2d321f1d28 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0014-spi-qup-Fix-sg-nents-calculation.patch @@ -0,0 +1,86 @@ +From f5913e137c3dac4972ac0ddd5f248924d02d3dcb Mon Sep 17 00:00:00 2001 +From: Varadarajan Narayanan +Date: Wed, 25 May 2016 13:40:03 +0530 +Subject: [PATCH 14/69] spi: qup: Fix sg nents calculation + +lib/scatterlist.c:sg_nents_for_len() returns the number of SG +entries that total up to greater than or equal to the given +length. However, the spi-qup driver assumed that the returned +nents is for a total less than or equal to the given length. The +spi-qup driver requests nents for SPI_MAX_XFER, however the API +returns nents for SPI_MAX_XFER+delta (actually SZ_64K). + +Based on this, spi_qup_do_dma() calculates n_words and programs +that into QUP_MX_{IN|OUT}PUT_CNT register. The calculated +n_words value is more than the maximum value that can fit in the +the 16-bit COUNT field of the QUP_MX_{IN|OUT}PUT_CNT register. +And, the field gets programmed to zero. Since the COUNT field is +zero, the i/o doesn't start eventually resulting in the i/o +timing out. + +Signed-off-by: Varadarajan Narayanan +--- + drivers/spi/spi-qup.c | 38 ++++++++++++++++++++++++++++++++++++-- + 1 file changed, 36 insertions(+), 2 deletions(-) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -581,6 +581,38 @@ static unsigned int spi_qup_sgl_get_size + return length; + } + ++/** ++ * spi_qup_sg_nents_for_len - return total count of entries in scatterlist ++ * needed to satisfy the supplied length ++ * @sg: The scatterlist ++ * @len: The total required length ++ * ++ * Description: ++ * Determines the number of entries in sg that sum upto a maximum of ++ * the supplied length, taking into acount chaining as well ++ * ++ * Returns: ++ * the number of sg entries needed, negative error on failure ++ * ++ **/ ++int spi_qup_sg_nents_for_len(struct scatterlist *sg, u64 len) ++{ ++ int nents; ++ u64 total; ++ ++ if (!len) ++ return 0; ++ ++ for (nents = 0, total = 0; sg; sg = sg_next(sg)) { ++ nents++; ++ total += sg_dma_len(sg); ++ if (total > len) ++ return (nents - 1); ++ } ++ ++ return -EINVAL; ++} ++ + static int spi_qup_do_dma(struct spi_device *spi, struct spi_transfer *xfer, + unsigned long timeout) + { +@@ -597,7 +629,8 @@ unsigned long timeout) + int rx_nents = 0, tx_nents = 0; + + if (rx_sgl) { +- rx_nents = sg_nents_for_len(rx_sgl, SPI_MAX_XFER); ++ rx_nents = spi_qup_sg_nents_for_len(rx_sgl, ++ SPI_MAX_XFER); + if (rx_nents < 0) + rx_nents = sg_nents(rx_sgl); + +@@ -606,7 +639,8 @@ unsigned long timeout) + } + + if (tx_sgl) { +- tx_nents = sg_nents_for_len(tx_sgl, SPI_MAX_XFER); ++ tx_nents = spi_qup_sg_nents_for_len(tx_sgl, ++ SPI_MAX_XFER); + if (tx_nents < 0) + tx_nents = sg_nents(tx_sgl); + diff --git a/target/linux/ipq806x/patches-4.9/0014-spi-qup-allow-block-mode-to-generate-multiple-transa.patch b/target/linux/ipq806x/patches-4.9/0014-spi-qup-allow-block-mode-to-generate-multiple-transa.patch deleted file mode 100644 index 6c275f61d3..0000000000 --- a/target/linux/ipq806x/patches-4.9/0014-spi-qup-allow-block-mode-to-generate-multiple-transa.patch +++ /dev/null @@ -1,268 +0,0 @@ -From 05a08cc5620df0fcf8e260feee04b9671705723e Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Tue, 26 Apr 2016 15:46:24 -0500 -Subject: [PATCH 14/37] spi: qup: allow block mode to generate multiple - transactions - -This let's you write more to the SPI bus than 64K-1 which is important -if the block size of a SPI device is >= 64K or some other device wants -to something larger. - -This has the benefit of completly removing spi_message from the spi-qup -transactions - -Signed-off-by: Matthew McClintock ---- - drivers/spi/spi-qup.c | 120 ++++++++++++++++++++++++++++++------------------- - 1 file changed, 75 insertions(+), 45 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -120,7 +120,7 @@ - - #define SPI_NUM_CHIPSELECTS 4 - --#define SPI_MAX_DMA_XFER (SZ_64K - 64) -+#define SPI_MAX_XFER (SZ_64K - 64) - - /* high speed mode is when bus rate is greater then 26MHz */ - #define SPI_HS_MIN_RATE 26000000 -@@ -150,6 +150,8 @@ struct spi_qup { - int n_words; - int tx_bytes; - int rx_bytes; -+ const u8 *tx_buf; -+ u8 *rx_buf; - int qup_v1; - - int mode; -@@ -172,6 +174,12 @@ static inline bool spi_qup_is_dma_xfer(i - return false; - } - -+/* get's the transaction size length */ -+static inline unsigned spi_qup_len(struct spi_qup *controller) -+{ -+ return controller->n_words * controller->w_size; -+} -+ - static inline bool spi_qup_is_valid_state(struct spi_qup *controller) - { - u32 opstate = readl_relaxed(controller->base + QUP_STATE); -@@ -224,10 +232,9 @@ static int spi_qup_set_state(struct spi_ - return 0; - } - --static void spi_qup_read_from_fifo(struct spi_qup *controller, -- struct spi_transfer *xfer, u32 num_words) -+static void spi_qup_read_from_fifo(struct spi_qup *controller, u32 num_words) - { -- u8 *rx_buf = xfer->rx_buf; -+ u8 *rx_buf = controller->rx_buf; - int i, shift, num_bytes; - u32 word; - -@@ -235,7 +242,7 @@ static void spi_qup_read_from_fifo(struc - - word = readl_relaxed(controller->base + QUP_INPUT_FIFO); - -- num_bytes = min_t(int, xfer->len - controller->rx_bytes, -+ num_bytes = min_t(int, spi_qup_len(controller) - controller->rx_bytes, - controller->w_size); - - if (!rx_buf) { -@@ -257,13 +264,12 @@ static void spi_qup_read_from_fifo(struc - } - } - --static void spi_qup_read(struct spi_qup *controller, -- struct spi_transfer *xfer) -+static void spi_qup_read(struct spi_qup *controller) - { - u32 remainder, words_per_block, num_words; - bool is_block_mode = controller->mode == QUP_IO_M_MODE_BLOCK; - -- remainder = DIV_ROUND_UP(xfer->len - controller->rx_bytes, -+ remainder = DIV_ROUND_UP(spi_qup_len(controller) - controller->rx_bytes, - controller->w_size); - words_per_block = controller->in_blk_sz >> 2; - -@@ -284,7 +290,7 @@ static void spi_qup_read(struct spi_qup - } - - /* read up to the maximum transfer size available */ -- spi_qup_read_from_fifo(controller, xfer, num_words); -+ spi_qup_read_from_fifo(controller, num_words); - - remainder -= num_words; - -@@ -306,17 +312,16 @@ static void spi_qup_read(struct spi_qup - - } - --static void spi_qup_write_to_fifo(struct spi_qup *controller, -- struct spi_transfer *xfer, u32 num_words) -+static void spi_qup_write_to_fifo(struct spi_qup *controller, u32 num_words) - { -- const u8 *tx_buf = xfer->tx_buf; -+ const u8 *tx_buf = controller->tx_buf; - int i, num_bytes; - u32 word, data; - - for (; num_words; num_words--) { - word = 0; - -- num_bytes = min_t(int, xfer->len - controller->tx_bytes, -+ num_bytes = min_t(int, spi_qup_len(controller) - controller->tx_bytes, - controller->w_size); - if (tx_buf) - for (i = 0; i < num_bytes; i++) { -@@ -337,13 +342,12 @@ static void spi_qup_dma_done(void *data) - complete(done); - } - --static void spi_qup_write(struct spi_qup *controller, -- struct spi_transfer *xfer) -+static void spi_qup_write(struct spi_qup *controller) - { - bool is_block_mode = controller->mode == QUP_IO_M_MODE_BLOCK; - u32 remainder, words_per_block, num_words; - -- remainder = DIV_ROUND_UP(xfer->len - controller->tx_bytes, -+ remainder = DIV_ROUND_UP(spi_qup_len(controller) - controller->tx_bytes, - controller->w_size); - words_per_block = controller->out_blk_sz >> 2; - -@@ -363,7 +367,7 @@ static void spi_qup_write(struct spi_qup - num_words = 1; - } - -- spi_qup_write_to_fifo(controller, xfer, num_words); -+ spi_qup_write_to_fifo(controller, num_words); - - remainder -= num_words; - -@@ -629,35 +633,61 @@ static int spi_qup_do_pio(struct spi_dev - { - struct spi_master *master = spi->master; - struct spi_qup *qup = spi_master_get_devdata(master); -- int ret; -+ int ret, n_words, iterations, offset = 0; - -- ret = spi_qup_io_config(spi, xfer); -- if (ret) -- return ret; -+ n_words = qup->n_words; -+ iterations = n_words / SPI_MAX_XFER; /* round down */ - -- ret = spi_qup_set_state(qup, QUP_STATE_RUN); -- if (ret) { -- dev_warn(qup->dev, "cannot set RUN state\n"); -- return ret; -- } -+ qup->rx_buf = xfer->rx_buf; -+ qup->tx_buf = xfer->tx_buf; - -- ret = spi_qup_set_state(qup, QUP_STATE_PAUSE); -- if (ret) { -- dev_warn(qup->dev, "cannot set PAUSE state\n"); -- return ret; -- } -+ do { -+ if (iterations) -+ qup->n_words = SPI_MAX_XFER; -+ else -+ qup->n_words = n_words % SPI_MAX_XFER; -+ -+ if (qup->tx_buf && offset) -+ qup->tx_buf = xfer->tx_buf + offset * SPI_MAX_XFER; -+ -+ if (qup->rx_buf && offset) -+ qup->rx_buf = xfer->rx_buf + offset * SPI_MAX_XFER; -+ -+ /* if the transaction is small enough, we need -+ * to fallback to FIFO mode */ -+ if (qup->n_words <= (qup->in_fifo_sz / sizeof(u32))) -+ qup->mode = QUP_IO_M_MODE_FIFO; - -- if (qup->mode == QUP_IO_M_MODE_FIFO) -- spi_qup_write(qup, xfer); -+ ret = spi_qup_io_config(spi, xfer); -+ if (ret) -+ return ret; - -- ret = spi_qup_set_state(qup, QUP_STATE_RUN); -- if (ret) { -- dev_warn(qup->dev, "cannot set RUN state\n"); -- return ret; -- } -+ ret = spi_qup_set_state(qup, QUP_STATE_RUN); -+ if (ret) { -+ dev_warn(qup->dev, "cannot set RUN state\n"); -+ return ret; -+ } - -- if (!wait_for_completion_timeout(&qup->done, timeout)) -- return -ETIMEDOUT; -+ ret = spi_qup_set_state(qup, QUP_STATE_PAUSE); -+ if (ret) { -+ dev_warn(qup->dev, "cannot set PAUSE state\n"); -+ return ret; -+ } -+ -+ if (qup->mode == QUP_IO_M_MODE_FIFO) -+ spi_qup_write(qup); -+ -+ ret = spi_qup_set_state(qup, QUP_STATE_RUN); -+ if (ret) { -+ dev_warn(qup->dev, "cannot set RUN state\n"); -+ return ret; -+ } -+ -+ if (!wait_for_completion_timeout(&qup->done, timeout)) -+ return -ETIMEDOUT; -+ -+ offset++; -+ } while (iterations--); - - return 0; - } -@@ -722,17 +752,17 @@ static irqreturn_t spi_qup_qup_irq(int i - complete(&controller->dma_tx_done); - } else { - if (opflags & QUP_OP_IN_SERVICE_FLAG) -- spi_qup_read(controller, xfer); -+ spi_qup_read(controller); - - if (opflags & QUP_OP_OUT_SERVICE_FLAG) -- spi_qup_write(controller, xfer); -+ spi_qup_write(controller); - } - - /* re-read opflags as flags may have changed due to actions above */ - if (opflags & QUP_OP_OUT_SERVICE_FLAG) - opflags = readl_relaxed(controller->base + QUP_OPERATIONAL); - -- if ((controller->rx_bytes == xfer->len && -+ if ((controller->rx_bytes == spi_qup_len(controller) && - (opflags & QUP_OP_MAX_INPUT_DONE_FLAG)) || error) - done = true; - -@@ -794,7 +824,7 @@ static int spi_qup_transfer_one(struct s - return ret; - - timeout = DIV_ROUND_UP(xfer->speed_hz, MSEC_PER_SEC); -- timeout = DIV_ROUND_UP(xfer->len * 8, timeout); -+ timeout = DIV_ROUND_UP(min_t(unsigned long, SPI_MAX_XFER, xfer->len) * 8, timeout); - timeout = 100 * msecs_to_jiffies(timeout); - - if (spi_qup_is_dma_xfer(controller->mode)) -@@ -983,7 +1013,7 @@ static int spi_qup_probe(struct platform - master->dev.of_node = pdev->dev.of_node; - master->auto_runtime_pm = true; - master->dma_alignment = dma_get_cache_alignment(); -- master->max_dma_len = SPI_MAX_DMA_XFER; -+ master->max_dma_len = SPI_MAX_XFER; - - platform_set_drvdata(pdev, master); - diff --git a/target/linux/ipq806x/patches-4.9/0015-cpufreq-dt-qcom-ipq4019-Add-compat-for-qcom-ipq4019.patch b/target/linux/ipq806x/patches-4.9/0015-cpufreq-dt-qcom-ipq4019-Add-compat-for-qcom-ipq4019.patch new file mode 100644 index 0000000000..06b61a07ef --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0015-cpufreq-dt-qcom-ipq4019-Add-compat-for-qcom-ipq4019.patch @@ -0,0 +1,27 @@ +From 5543e93f51d5e23f9b3a7fe11a722c91fc410485 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Wed, 13 Apr 2016 14:03:14 -0500 +Subject: [PATCH 15/69] cpufreq: dt: qcom: ipq4019: Add compat for qcom ipq4019 + +Instantiate cpufreq-dt-platdev driver for ipq4019 to support changing +CPU frequencies. + +This depends on Viresh Kumar's patches in this series: +http://comments.gmane.org/gmane.linux.power-management.general/73887 + +Signed-off-by: Matthew McClintock +--- + drivers/cpufreq/cpufreq-dt-platdev.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/drivers/cpufreq/cpufreq-dt-platdev.c ++++ b/drivers/cpufreq/cpufreq-dt-platdev.c +@@ -35,6 +35,8 @@ static const struct of_device_id machine + + { .compatible = "marvell,berlin", }, + ++ { .compatible = "qcom,ipq4019", }, ++ + { .compatible = "samsung,exynos3250", }, + { .compatible = "samsung,exynos4210", }, + { .compatible = "samsung,exynos4212", }, diff --git a/target/linux/ipq806x/patches-4.9/0015-spi-qup-refactor-spi_qup_prep_sg-to-be-more-take-spe.patch b/target/linux/ipq806x/patches-4.9/0015-spi-qup-refactor-spi_qup_prep_sg-to-be-more-take-spe.patch deleted file mode 100644 index 90ffe863e1..0000000000 --- a/target/linux/ipq806x/patches-4.9/0015-spi-qup-refactor-spi_qup_prep_sg-to-be-more-take-spe.patch +++ /dev/null @@ -1,73 +0,0 @@ -From a24914d34a4c6df4323c6d98950166600da79bc6 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Wed, 4 May 2016 16:33:42 -0500 -Subject: [PATCH 15/37] spi: qup: refactor spi_qup_prep_sg to be more take - specific sgl and nent - -This is in preparation for splitting DMA into multiple transacations, -this contains no code changes just refactoring. - -Signed-off-by: Matthew McClintock ---- - drivers/spi/spi-qup.c | 28 +++++++++++----------------- - 1 file changed, 11 insertions(+), 17 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -379,27 +379,19 @@ static void spi_qup_write(struct spi_qup - } while (remainder); - } - --static int spi_qup_prep_sg(struct spi_master *master, struct spi_transfer *xfer, -- enum dma_transfer_direction dir, -- dma_async_tx_callback callback, -- void *data) -+static int spi_qup_prep_sg(struct spi_master *master, struct scatterlist *sgl, -+ unsigned int nents, enum dma_transfer_direction dir, -+ dma_async_tx_callback callback, void *data) - { - unsigned long flags = DMA_PREP_INTERRUPT | DMA_PREP_FENCE; - struct dma_async_tx_descriptor *desc; -- struct scatterlist *sgl; - struct dma_chan *chan; - dma_cookie_t cookie; -- unsigned int nents; - -- if (dir == DMA_MEM_TO_DEV) { -+ if (dir == DMA_MEM_TO_DEV) - chan = master->dma_tx; -- nents = xfer->tx_sg.nents; -- sgl = xfer->tx_sg.sgl; -- } else { -+ else - chan = master->dma_rx; -- nents = xfer->rx_sg.nents; -- sgl = xfer->rx_sg.sgl; -- } - - desc = dmaengine_prep_slave_sg(chan, sgl, nents, dir, flags); - if (IS_ERR_OR_NULL(desc)) -@@ -602,8 +594,9 @@ unsigned long timeout) - } - - if (xfer->rx_buf) { -- ret = spi_qup_prep_sg(master, xfer, DMA_DEV_TO_MEM, rx_done, -- &qup->done); -+ ret = spi_qup_prep_sg(master, xfer->rx_sg.sgl, -+ xfer->rx_sg.nents, DMA_DEV_TO_MEM, -+ rx_done, &qup->done); - if (ret) - return ret; - -@@ -611,8 +604,9 @@ unsigned long timeout) - } - - if (xfer->tx_buf) { -- ret = spi_qup_prep_sg(master, xfer, DMA_MEM_TO_DEV, tx_done, -- &qup->dma_tx_done); -+ ret = spi_qup_prep_sg(master, xfer->tx_sg.sgl, -+ xfer->tx_sg.nents, DMA_MEM_TO_DEV, -+ tx_done, &qup->dma_tx_done); - if (ret) - return ret; - diff --git a/target/linux/ipq806x/patches-4.9/0016-clk-ipq4019-report-accurate-fixed-clock-rates.patch b/target/linux/ipq806x/patches-4.9/0016-clk-ipq4019-report-accurate-fixed-clock-rates.patch new file mode 100644 index 0000000000..6f7665390d --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0016-clk-ipq4019-report-accurate-fixed-clock-rates.patch @@ -0,0 +1,33 @@ +From 5e2df5f44e35d79fff2ab8bbb8a726ad5de78a3e Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Thu, 28 Apr 2016 12:55:08 -0500 +Subject: [PATCH 16/69] clk: ipq4019: report accurate fixed clock rates + +This looks like a copy-and-paste gone wrong, but update all +the fixed clock rates to report the correct values. + +Signed-off-by: Matthew McClintock +--- + drivers/clk/qcom/gcc-ipq4019.c | 10 +++++----- + 1 file changed, 5 insertions(+), 5 deletions(-) + +--- a/drivers/clk/qcom/gcc-ipq4019.c ++++ b/drivers/clk/qcom/gcc-ipq4019.c +@@ -1317,12 +1317,12 @@ static int gcc_ipq4019_probe(struct plat + { + struct device *dev = &pdev->dev; + +- clk_register_fixed_rate(dev, "fepll125", "xo", 0, 200000000); +- clk_register_fixed_rate(dev, "fepll125dly", "xo", 0, 200000000); +- clk_register_fixed_rate(dev, "fepllwcss2g", "xo", 0, 200000000); +- clk_register_fixed_rate(dev, "fepllwcss5g", "xo", 0, 200000000); ++ clk_register_fixed_rate(dev, "fepll125", "xo", 0, 125000000); ++ clk_register_fixed_rate(dev, "fepll125dly", "xo", 0, 125000000); ++ clk_register_fixed_rate(dev, "fepllwcss2g", "xo", 0, 250000000); ++ clk_register_fixed_rate(dev, "fepllwcss5g", "xo", 0, 250000000); + clk_register_fixed_rate(dev, "fepll200", "xo", 0, 200000000); +- clk_register_fixed_rate(dev, "fepll500", "xo", 0, 200000000); ++ clk_register_fixed_rate(dev, "fepll500", "xo", 0, 500000000); + clk_register_fixed_rate(dev, "ddrpllapss", "xo", 0, 666000000); + + return qcom_cc_probe(pdev, &gcc_ipq4019_desc); diff --git a/target/linux/ipq806x/patches-4.9/0016-spi-qup-allow-mulitple-DMA-transactions-per-spi-xfer.patch b/target/linux/ipq806x/patches-4.9/0016-spi-qup-allow-mulitple-DMA-transactions-per-spi-xfer.patch deleted file mode 100644 index de324ffd6e..0000000000 --- a/target/linux/ipq806x/patches-4.9/0016-spi-qup-allow-mulitple-DMA-transactions-per-spi-xfer.patch +++ /dev/null @@ -1,166 +0,0 @@ -From 6b2bb8803f19116bad41a271f9035d4c853f4553 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Thu, 5 May 2016 10:07:11 -0500 -Subject: [PATCH 16/37] spi: qup: allow mulitple DMA transactions per spi xfer - -Much like the block mode changes, we are breaking up DMA transactions -into 64K chunks so we can reset the QUP engine. - -Signed-off-by: Matthew McClintock ---- - drivers/spi/spi-qup.c | 120 +++++++++++++++++++++++++++++++++++-------------- - 1 file changed, 86 insertions(+), 34 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -566,6 +566,21 @@ static int spi_qup_io_config(struct spi_ - return 0; - } - -+static unsigned int spi_qup_sgl_get_size(struct scatterlist *sgl, unsigned int nents) -+{ -+ struct scatterlist *sg; -+ int i; -+ unsigned int length = 0; -+ -+ if (!nents) -+ return 0; -+ -+ for_each_sg(sgl, sg, nents, i) -+ length += sg_dma_len(sg); -+ -+ return length; -+} -+ - static int spi_qup_do_dma(struct spi_device *spi, struct spi_transfer *xfer, - unsigned long timeout) - { -@@ -573,53 +588,90 @@ unsigned long timeout) - struct spi_qup *qup = spi_master_get_devdata(master); - dma_async_tx_callback rx_done = NULL, tx_done = NULL; - int ret; -+ struct scatterlist *tx_sgl, *rx_sgl; - -- ret = spi_qup_io_config(spi, xfer); -- if (ret) -- return ret; -- -- /* before issuing the descriptors, set the QUP to run */ -- ret = spi_qup_set_state(qup, QUP_STATE_RUN); -- if (ret) { -- dev_warn(qup->dev, "cannot set RUN state\n"); -- return ret; -- } -- -- if (!qup->qup_v1) { -- if (xfer->rx_buf) -- rx_done = spi_qup_dma_done; -- -- if (xfer->tx_buf) -- tx_done = spi_qup_dma_done; -- } -- -- if (xfer->rx_buf) { -- ret = spi_qup_prep_sg(master, xfer->rx_sg.sgl, -- xfer->rx_sg.nents, DMA_DEV_TO_MEM, -- rx_done, &qup->done); -- if (ret) -- return ret; -+ rx_sgl = xfer->rx_sg.sgl; -+ tx_sgl = xfer->tx_sg.sgl; - -- dma_async_issue_pending(master->dma_rx); -- } -+ do { -+ int rx_nents = 0, tx_nents = 0; - -- if (xfer->tx_buf) { -- ret = spi_qup_prep_sg(master, xfer->tx_sg.sgl, -- xfer->tx_sg.nents, DMA_MEM_TO_DEV, -- tx_done, &qup->dma_tx_done); -+ if (rx_sgl) { -+ rx_nents = sg_nents_for_len(rx_sgl, SPI_MAX_XFER); -+ if (rx_nents < 0) -+ rx_nents = sg_nents(rx_sgl); -+ -+ qup->n_words = spi_qup_sgl_get_size(rx_sgl, rx_nents) / -+ qup->w_size; -+ } -+ -+ if (tx_sgl) { -+ tx_nents = sg_nents_for_len(tx_sgl, SPI_MAX_XFER); -+ if (tx_nents < 0) -+ tx_nents = sg_nents(tx_sgl); -+ -+ qup->n_words = spi_qup_sgl_get_size(tx_sgl, tx_nents) / -+ qup->w_size; -+ } -+ -+ -+ ret = spi_qup_io_config(spi, xfer); - if (ret) - return ret; - -- dma_async_issue_pending(master->dma_tx); -- } -+ /* before issuing the descriptors, set the QUP to run */ -+ ret = spi_qup_set_state(qup, QUP_STATE_RUN); -+ if (ret) { -+ dev_warn(qup->dev, "cannot set RUN state\n"); -+ return ret; -+ } -+ -+ if (!qup->qup_v1) { -+ if (rx_sgl) { -+ rx_done = spi_qup_dma_done; -+ } -+ -+ if (tx_sgl) { -+ tx_done = spi_qup_dma_done; -+ } -+ } -+ -+ if (rx_sgl) { -+ ret = spi_qup_prep_sg(master, rx_sgl, rx_nents, -+ DMA_DEV_TO_MEM, rx_done, -+ &qup->done); -+ if (ret) -+ return ret; -+ -+ dma_async_issue_pending(master->dma_rx); -+ } -+ -+ if (tx_sgl) { -+ ret = spi_qup_prep_sg(master, tx_sgl, tx_nents, -+ DMA_MEM_TO_DEV, tx_done, -+ &qup->dma_tx_done); -+ if (ret) -+ return ret; -+ -+ dma_async_issue_pending(master->dma_tx); -+ } -+ -+ if (rx_sgl && !wait_for_completion_timeout(&qup->done, timeout)) { -+ pr_emerg(" rx timed out"); -+ return -ETIMEDOUT; -+ } -+ -+ if (tx_sgl && !wait_for_completion_timeout(&qup->dma_tx_done, timeout)) { -+ pr_emerg(" tx timed out\n"); -+ return -ETIMEDOUT; -+ } - -- if (xfer->rx_buf && !wait_for_completion_timeout(&qup->done, timeout)) -- return -ETIMEDOUT; -+ for (; rx_sgl && rx_nents--; rx_sgl = sg_next(rx_sgl)); -+ for (; tx_sgl && tx_nents--; tx_sgl = sg_next(tx_sgl)); - -- if (xfer->tx_buf && !wait_for_completion_timeout(&qup->dma_tx_done, timeout)) -- ret = -ETIMEDOUT; -+ } while (rx_sgl || tx_sgl); - -- return ret; -+ return 0; - } - - static int spi_qup_do_pio(struct spi_device *spi, struct spi_transfer *xfer, diff --git a/target/linux/ipq806x/patches-4.9/0017-qcom-ipq4019-add-cpu-operating-points-for-cpufreq-su.patch b/target/linux/ipq806x/patches-4.9/0017-qcom-ipq4019-add-cpu-operating-points-for-cpufreq-su.patch new file mode 100644 index 0000000000..7cbd6a4551 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0017-qcom-ipq4019-add-cpu-operating-points-for-cpufreq-su.patch @@ -0,0 +1,77 @@ +From 18c3b42575a154343831aec0637aab00e19440e1 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Thu, 17 Mar 2016 15:01:09 -0500 +Subject: [PATCH 17/69] qcom: ipq4019: add cpu operating points for cpufreq + support + +This adds some operating points for cpu frequeny scaling + +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/qcom-ipq4019.dtsi | 34 ++++++++++++++++++++++++++-------- + 1 file changed, 26 insertions(+), 8 deletions(-) + +--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi +@@ -40,14 +40,7 @@ + reg = <0x0>; + clocks = <&gcc GCC_APPS_CLK_SRC>; + clock-frequency = <0>; +- operating-points = < +- /* kHz uV (fixed) */ +- 48000 1100000 +- 200000 1100000 +- 500000 1100000 +- 666000 1100000 +- >; +- clock-latency = <256000>; ++ operating-points-v2 = <&cpu0_opp_table>; + }; + + cpu@1 { +@@ -59,6 +52,7 @@ + reg = <0x1>; + clocks = <&gcc GCC_APPS_CLK_SRC>; + clock-frequency = <0>; ++ operating-points-v2 = <&cpu0_opp_table>; + }; + + cpu@2 { +@@ -70,6 +64,7 @@ + reg = <0x2>; + clocks = <&gcc GCC_APPS_CLK_SRC>; + clock-frequency = <0>; ++ operating-points-v2 = <&cpu0_opp_table>; + }; + + cpu@3 { +@@ -81,6 +76,29 @@ + reg = <0x3>; + clocks = <&gcc GCC_APPS_CLK_SRC>; + clock-frequency = <0>; ++ operating-points-v2 = <&cpu0_opp_table>; ++ }; ++ }; ++ ++ cpu0_opp_table: opp_table0 { ++ compatible = "operating-points-v2"; ++ opp-shared; ++ ++ opp@48000000 { ++ opp-hz = /bits/ 64 <48000000>; ++ clock-latency-ns = <256000>; ++ }; ++ opp@200000000 { ++ opp-hz = /bits/ 64 <200000000>; ++ clock-latency-ns = <256000>; ++ }; ++ opp@500000000 { ++ opp-hz = /bits/ 64 <500000000>; ++ clock-latency-ns = <256000>; ++ }; ++ opp@666000000 { ++ opp-hz = /bits/ 64 <666000000>; ++ clock-latency-ns = <256000>; + }; + }; + diff --git a/target/linux/ipq806x/patches-4.9/0017-spi-qup-Fix-sg-nents-calculation.patch b/target/linux/ipq806x/patches-4.9/0017-spi-qup-Fix-sg-nents-calculation.patch deleted file mode 100644 index d6d92b8d8e..0000000000 --- a/target/linux/ipq806x/patches-4.9/0017-spi-qup-Fix-sg-nents-calculation.patch +++ /dev/null @@ -1,86 +0,0 @@ -From 5ffa559b35dd90469e1f7fc21a77c6a2d5a8ca0f Mon Sep 17 00:00:00 2001 -From: Varadarajan Narayanan -Date: Wed, 25 May 2016 13:40:03 +0530 -Subject: [PATCH 17/37] spi: qup: Fix sg nents calculation - -lib/scatterlist.c:sg_nents_for_len() returns the number of SG -entries that total up to greater than or equal to the given -length. However, the spi-qup driver assumed that the returned -nents is for a total less than or equal to the given length. The -spi-qup driver requests nents for SPI_MAX_XFER, however the API -returns nents for SPI_MAX_XFER+delta (actually SZ_64K). - -Based on this, spi_qup_do_dma() calculates n_words and programs -that into QUP_MX_{IN|OUT}PUT_CNT register. The calculated -n_words value is more than the maximum value that can fit in the -the 16-bit COUNT field of the QUP_MX_{IN|OUT}PUT_CNT register. -And, the field gets programmed to zero. Since the COUNT field is -zero, the i/o doesn't start eventually resulting in the i/o -timing out. - -Signed-off-by: Varadarajan Narayanan ---- - drivers/spi/spi-qup.c | 38 ++++++++++++++++++++++++++++++++++++-- - 1 file changed, 36 insertions(+), 2 deletions(-) - ---- a/drivers/spi/spi-qup.c -+++ b/drivers/spi/spi-qup.c -@@ -581,6 +581,38 @@ static unsigned int spi_qup_sgl_get_size - return length; - } - -+/** -+ * spi_qup_sg_nents_for_len - return total count of entries in scatterlist -+ * needed to satisfy the supplied length -+ * @sg: The scatterlist -+ * @len: The total required length -+ * -+ * Description: -+ * Determines the number of entries in sg that sum upto a maximum of -+ * the supplied length, taking into acount chaining as well -+ * -+ * Returns: -+ * the number of sg entries needed, negative error on failure -+ * -+ **/ -+int spi_qup_sg_nents_for_len(struct scatterlist *sg, u64 len) -+{ -+ int nents; -+ u64 total; -+ -+ if (!len) -+ return 0; -+ -+ for (nents = 0, total = 0; sg; sg = sg_next(sg)) { -+ nents++; -+ total += sg_dma_len(sg); -+ if (total > len) -+ return (nents - 1); -+ } -+ -+ return -EINVAL; -+} -+ - static int spi_qup_do_dma(struct spi_device *spi, struct spi_transfer *xfer, - unsigned long timeout) - { -@@ -597,7 +629,8 @@ unsigned long timeout) - int rx_nents = 0, tx_nents = 0; - - if (rx_sgl) { -- rx_nents = sg_nents_for_len(rx_sgl, SPI_MAX_XFER); -+ rx_nents = spi_qup_sg_nents_for_len(rx_sgl, -+ SPI_MAX_XFER); - if (rx_nents < 0) - rx_nents = sg_nents(rx_sgl); - -@@ -606,7 +639,8 @@ unsigned long timeout) - } - - if (tx_sgl) { -- tx_nents = sg_nents_for_len(tx_sgl, SPI_MAX_XFER); -+ tx_nents = spi_qup_sg_nents_for_len(tx_sgl, -+ SPI_MAX_XFER); - if (tx_nents < 0) - tx_nents = sg_nents(tx_sgl); - diff --git a/target/linux/ipq806x/patches-4.9/0018-qcom-ipq4019-turn-on-DMA-for-i2c.patch b/target/linux/ipq806x/patches-4.9/0018-qcom-ipq4019-turn-on-DMA-for-i2c.patch new file mode 100644 index 0000000000..42bb4a6e3e --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0018-qcom-ipq4019-turn-on-DMA-for-i2c.patch @@ -0,0 +1,23 @@ +From 71f82049dca86bc89b9da07e051e4ed492820233 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Mon, 28 Mar 2016 11:16:51 -0500 +Subject: [PATCH 18/69] qcom: ipq4019: turn on DMA for i2c + +These are the required nodes for i2c-qup to use DMA + +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/qcom-ipq4019.dtsi | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi +@@ -179,6 +179,8 @@ + clock-names = "iface", "core"; + #address-cells = <1>; + #size-cells = <0>; ++ dmas = <&blsp_dma 9>, <&blsp_dma 8>; ++ dma-names = "rx", "tx"; + status = "disabled"; + }; + diff --git a/target/linux/ipq806x/patches-4.9/0019-qcom-ipq4019-use-correct-clock-for-i2c-bus-0.patch b/target/linux/ipq806x/patches-4.9/0019-qcom-ipq4019-use-correct-clock-for-i2c-bus-0.patch new file mode 100644 index 0000000000..54ee571cbb --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0019-qcom-ipq4019-use-correct-clock-for-i2c-bus-0.patch @@ -0,0 +1,28 @@ +From 7292bf171cdf2fb48607058f12ddd0d812a87428 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Fri, 29 Apr 2016 12:48:02 -0500 +Subject: [PATCH 19/69] qcom: ipq4019: use correct clock for i2c bus 0 + +For the record the mapping is as follows: + +QUP0 = SPI QUP1 +QUP1 = SPI QUP2 +QUP2 = I2C QUP1 +QUP3 = I2C QUP2 + +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/qcom-ipq4019.dtsi | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi +@@ -175,7 +175,7 @@ + reg = <0x78b7000 0x6000>; + interrupts = ; + clocks = <&gcc GCC_BLSP1_AHB_CLK>, +- <&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>; ++ <&gcc GCC_BLSP1_QUP1_I2C_APPS_CLK>; + clock-names = "iface", "core"; + #address-cells = <1>; + #size-cells = <0>; diff --git a/target/linux/ipq806x/patches-4.9/0020-qcom-ipq4019-enable-DMA-for-spi.patch b/target/linux/ipq806x/patches-4.9/0020-qcom-ipq4019-enable-DMA-for-spi.patch new file mode 100644 index 0000000000..c1fa5c7298 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0020-qcom-ipq4019-enable-DMA-for-spi.patch @@ -0,0 +1,23 @@ +From 4593e768393b9589f0a8987eaf57316c214865fe Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Mon, 11 Apr 2016 14:49:12 -0500 +Subject: [PATCH 20/69] qcom: ipq4019: enable DMA for spi + +These are the required nodes for spi-qup to use DMA + +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/qcom-ipq4019.dtsi | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi +@@ -167,6 +167,8 @@ + clock-names = "core", "iface"; + #address-cells = <1>; + #size-cells = <0>; ++ dmas = <&blsp_dma 5>, <&blsp_dma 4>; ++ dma-names = "rx", "tx"; + status = "disabled"; + }; + diff --git a/target/linux/ipq806x/patches-4.9/0021-qcom-ipq4019-use-v2-of-the-kpss-bringup-mechanism.patch b/target/linux/ipq806x/patches-4.9/0021-qcom-ipq4019-use-v2-of-the-kpss-bringup-mechanism.patch new file mode 100644 index 0000000000..887ebf39b6 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0021-qcom-ipq4019-use-v2-of-the-kpss-bringup-mechanism.patch @@ -0,0 +1,108 @@ +From 644ad7209637b02a0ca6d72f0715a9f52532fc70 Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Fri, 8 Apr 2016 15:26:10 -0500 +Subject: [PATCH 21/69] qcom: ipq4019: use v2 of the kpss bringup mechanism + +v1 was the incorrect choice here and sometimes the board would not come +up properly + +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/qcom-ipq4019.dtsi | 32 ++++++++++++++++++++++++-------- + 1 file changed, 24 insertions(+), 8 deletions(-) + +--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi +@@ -34,7 +34,8 @@ + cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; +- enable-method = "qcom,kpss-acc-v1"; ++ enable-method = "qcom,kpss-acc-v2"; ++ next-level-cache = <&L2>; + qcom,acc = <&acc0>; + qcom,saw = <&saw0>; + reg = <0x0>; +@@ -46,7 +47,8 @@ + cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; +- enable-method = "qcom,kpss-acc-v1"; ++ enable-method = "qcom,kpss-acc-v2"; ++ next-level-cache = <&L2>; + qcom,acc = <&acc1>; + qcom,saw = <&saw1>; + reg = <0x1>; +@@ -58,7 +60,8 @@ + cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; +- enable-method = "qcom,kpss-acc-v1"; ++ enable-method = "qcom,kpss-acc-v2"; ++ next-level-cache = <&L2>; + qcom,acc = <&acc2>; + qcom,saw = <&saw2>; + reg = <0x2>; +@@ -70,7 +73,8 @@ + cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; +- enable-method = "qcom,kpss-acc-v1"; ++ enable-method = "qcom,kpss-acc-v2"; ++ next-level-cache = <&L2>; + qcom,acc = <&acc3>; + qcom,saw = <&saw3>; + reg = <0x3>; +@@ -100,6 +104,12 @@ + opp-hz = /bits/ 64 <666000000>; + clock-latency-ns = <256000>; + }; ++ ++ L2: l2-cache { ++ compatible = "qcom,arch-cache"; ++ cache-level = <2>; ++ qcom,saw = <&saw_l2>; ++ }; + }; + + pmu { +@@ -212,22 +222,22 @@ + }; + + acc0: clock-controller@b088000 { +- compatible = "qcom,kpss-acc-v1"; ++ compatible = "qcom,kpss-acc-v2"; + reg = <0x0b088000 0x1000>, <0xb008000 0x1000>; + }; + + acc1: clock-controller@b098000 { +- compatible = "qcom,kpss-acc-v1"; ++ compatible = "qcom,kpss-acc-v2"; + reg = <0x0b098000 0x1000>, <0xb008000 0x1000>; + }; + + acc2: clock-controller@b0a8000 { +- compatible = "qcom,kpss-acc-v1"; ++ compatible = "qcom,kpss-acc-v2"; + reg = <0x0b0a8000 0x1000>, <0xb008000 0x1000>; + }; + + acc3: clock-controller@b0b8000 { +- compatible = "qcom,kpss-acc-v1"; ++ compatible = "qcom,kpss-acc-v2"; + reg = <0x0b0b8000 0x1000>, <0xb008000 0x1000>; + }; + +@@ -255,6 +265,12 @@ + regulator; + }; + ++ saw_l2: regulator@b012000 { ++ compatible = "qcom,saw2"; ++ reg = <0xb012000 0x1000>; ++ regulator; ++ }; ++ + serial@78af000 { + compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm"; + reg = <0x78af000 0x200>; diff --git a/target/linux/ipq806x/patches-4.9/0022-dts-ipq4019-support-ARMv7-PMU.patch b/target/linux/ipq806x/patches-4.9/0022-dts-ipq4019-support-ARMv7-PMU.patch new file mode 100644 index 0000000000..e5dbba7b8b --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0022-dts-ipq4019-support-ARMv7-PMU.patch @@ -0,0 +1,28 @@ +From 47f00399b195e0987c67006b329587bef0692bf4 Mon Sep 17 00:00:00 2001 +From: Thomas Pedersen +Date: Wed, 4 May 2016 12:25:41 -0700 +Subject: [PATCH 22/69] dts: ipq4019: support ARMv7 PMU + +Add support for cortex-a7-pmu present on ipq4019 SoCs. + +Signed-off-by: Thomas Pedersen +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/qcom-ipq4019.dtsi | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi +@@ -118,6 +118,12 @@ + IRQ_TYPE_LEVEL_HIGH)>; + }; + ++ pmu { ++ compatible = "arm,cortex-a7-pmu"; ++ interrupts = ; ++ }; ++ + clocks { + sleep_clk: sleep_clk { + compatible = "fixed-clock"; diff --git a/target/linux/ipq806x/patches-4.9/0023-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch b/target/linux/ipq806x/patches-4.9/0023-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch new file mode 100644 index 0000000000..e8f4bfc3b1 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0023-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch @@ -0,0 +1,488 @@ +From 04d3f9be0ce80fac99d4ca1f46faf3605258ca1f Mon Sep 17 00:00:00 2001 +From: Senthilkumar N L +Date: Tue, 6 Jan 2015 12:52:23 +0530 +Subject: [PATCH 23/69] qcom: ipq4019: Add IPQ4019 USB HS/SS PHY drivers + +These drivers handles control and configuration of the HS +and SS USB PHY transceivers. + +Signed-off-by: Senthilkumar N L +--- + drivers/usb/phy/Kconfig | 11 ++ + drivers/usb/phy/Makefile | 2 + + drivers/usb/phy/phy-qca-baldur.c | 262 +++++++++++++++++++++++++++++++++++++++ + drivers/usb/phy/phy-qca-uniphy.c | 171 +++++++++++++++++++++++++ + 4 files changed, 446 insertions(+) + create mode 100644 drivers/usb/phy/phy-qca-baldur.c + create mode 100644 drivers/usb/phy/phy-qca-uniphy.c + +--- a/drivers/usb/phy/Kconfig ++++ b/drivers/usb/phy/Kconfig +@@ -194,6 +194,17 @@ config USB_MXS_PHY + + MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x. + ++config USB_IPQ4019_PHY ++ tristate "IPQ4019 PHY wrappers support" ++ depends on (USB || USB_GADGET) && ARCH_QCOM ++ select USB_PHY ++ help ++ Enable this to support the USB PHY transceivers on QCA961x chips. ++ It handles PHY initialization, clock management required after ++ resetting the hardware and power management. ++ This driver is required even for peripheral only or host only ++ mode configurations. ++ + config USB_ULPI + bool "Generic ULPI Transceiver Driver" + depends on ARM || ARM64 +--- a/drivers/usb/phy/Makefile ++++ b/drivers/usb/phy/Makefile +@@ -21,6 +21,8 @@ obj-$(CONFIG_USB_GPIO_VBUS) += phy-gpio + obj-$(CONFIG_USB_ISP1301) += phy-isp1301.o + obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o + obj-$(CONFIG_USB_QCOM_8X16_PHY) += phy-qcom-8x16-usb.o ++obj-$(CONFIG_USB_IPQ4019_PHY) += phy-qca-baldur.o ++obj-$(CONFIG_USB_IPQ4019_PHY) += phy-qca-uniphy.o + obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o + obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o + obj-$(CONFIG_USB_ULPI) += phy-ulpi.o +--- /dev/null ++++ b/drivers/usb/phy/phy-qca-baldur.c +@@ -0,0 +1,262 @@ ++/* Copyright (c) 2015, The Linux Foundation. All rights reserved. ++ * ++ * Permission to use, copy, modify, and/or distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES ++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ++ * ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++/** ++ * USB Hardware registers ++ */ ++#define PHY_CTRL0_ADDR 0x000 ++#define PHY_CTRL1_ADDR 0x004 ++#define PHY_CTRL2_ADDR 0x008 ++#define PHY_CTRL3_ADDR 0x00C ++#define PHY_CTRL4_ADDR 0x010 ++#define PHY_MISC_ADDR 0x024 ++#define PHY_IPG_ADDR 0x030 ++ ++#define PHY_CTRL0_EMU_ADDR 0x180 ++#define PHY_CTRL1_EMU_ADDR 0x184 ++#define PHY_CTRL2_EMU_ADDR 0x188 ++#define PHY_CTRL3_EMU_ADDR 0x18C ++#define PHY_CTRL4_EMU_ADDR 0x190 ++#define PHY_MISC_EMU_ADDR 0x1A4 ++#define PHY_IPG_EMU_ADDR 0x1B0 ++ ++#define PHY_CTRL0_VAL 0xA4600015 ++#define PHY_CTRL1_VAL 0x09500000 ++#define PHY_CTRL2_VAL 0x00058180 ++#define PHY_CTRL3_VAL 0x6DB6DCD6 ++#define PHY_CTRL4_VAL 0x836DB6DB ++#define PHY_MISC_VAL 0x3803FB0C ++#define PHY_IPG_VAL 0x47323232 ++ ++#define PHY_CTRL0_EMU_VAL 0xb4000015 ++#define PHY_CTRL1_EMU_VAL 0x09500000 ++#define PHY_CTRL2_EMU_VAL 0x00058180 ++#define PHY_CTRL3_EMU_VAL 0x6DB6DCD6 ++#define PHY_CTRL4_EMU_VAL 0x836DB6DB ++#define PHY_MISC_EMU_VAL 0x3803FB0C ++#define PHY_IPG_EMU_VAL 0x47323232 ++ ++#define USB30_HS_PHY_HOST_MODE (0x01 << 21) ++#define USB20_HS_PHY_HOST_MODE (0x01 << 5) ++ ++/* used to differentiate between USB3 HS and USB2 HS PHY */ ++struct qca_baldur_hs_data { ++ unsigned int usb3_hs_phy; ++ unsigned int phy_config_offset; ++}; ++ ++struct qca_baldur_hs_phy { ++ struct device *dev; ++ struct usb_phy phy; ++ ++ void __iomem *base; ++ void __iomem *qscratch_base; ++ ++ struct reset_control *por_rst; ++ struct reset_control *srif_rst; ++ ++ unsigned int host; ++ unsigned int emulation; ++ const struct qca_baldur_hs_data *data; ++}; ++ ++#define phy_to_dw_phy(x) container_of((x), struct qca_baldur_hs_phy, phy) ++ ++static int qca_baldur_phy_read(struct usb_phy *x, u32 reg) ++{ ++ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); ++ ++ return readl(phy->base + reg); ++} ++ ++static int qca_baldur_phy_write(struct usb_phy *x, u32 val, u32 reg) ++{ ++ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); ++ ++ writel(val, phy->base + reg); ++ return 0; ++} ++ ++static int qca_baldur_hs_phy_init(struct usb_phy *x) ++{ ++ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); ++ ++ /* assert HS PHY POR reset */ ++ reset_control_assert(phy->por_rst); ++ msleep(10); ++ ++ /* assert HS PHY SRIF reset */ ++ reset_control_assert(phy->srif_rst); ++ msleep(10); ++ ++ /* deassert HS PHY SRIF reset and program HS PHY registers */ ++ reset_control_deassert(phy->srif_rst); ++ msleep(10); ++ ++ if (!phy->emulation) { ++ /* perform PHY register writes */ ++ writel(PHY_CTRL0_VAL, phy->base + PHY_CTRL0_ADDR); ++ writel(PHY_CTRL1_VAL, phy->base + PHY_CTRL1_ADDR); ++ writel(PHY_CTRL2_VAL, phy->base + PHY_CTRL2_ADDR); ++ writel(PHY_CTRL3_VAL, phy->base + PHY_CTRL3_ADDR); ++ writel(PHY_CTRL4_VAL, phy->base + PHY_CTRL4_ADDR); ++ writel(PHY_MISC_VAL, phy->base + PHY_MISC_ADDR); ++ writel(PHY_IPG_VAL, phy->base + PHY_IPG_ADDR); ++ } else { ++ /* perform PHY register writes */ ++ writel(PHY_CTRL0_EMU_VAL, phy->base + PHY_CTRL0_EMU_ADDR); ++ writel(PHY_CTRL1_EMU_VAL, phy->base + PHY_CTRL1_EMU_ADDR); ++ writel(PHY_CTRL2_EMU_VAL, phy->base + PHY_CTRL2_EMU_ADDR); ++ writel(PHY_CTRL3_EMU_VAL, phy->base + PHY_CTRL3_EMU_ADDR); ++ writel(PHY_CTRL4_EMU_VAL, phy->base + PHY_CTRL4_EMU_ADDR); ++ writel(PHY_MISC_EMU_VAL, phy->base + PHY_MISC_EMU_ADDR); ++ writel(PHY_IPG_EMU_VAL, phy->base + PHY_IPG_EMU_ADDR); ++ } ++ ++ msleep(10); ++ ++ /* de-assert USB3 HS PHY POR reset */ ++ reset_control_deassert(phy->por_rst); ++ ++ return 0; ++} ++ ++static int qca_baldur_hs_get_resources(struct qca_baldur_hs_phy *phy) ++{ ++ struct platform_device *pdev = to_platform_device(phy->dev); ++ struct resource *res; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ phy->base = devm_ioremap_resource(phy->dev, res); ++ if (IS_ERR(phy->base)) ++ return PTR_ERR(phy->base); ++ ++ phy->por_rst = devm_reset_control_get(phy->dev, "por_rst"); ++ if (IS_ERR(phy->por_rst)) ++ return PTR_ERR(phy->por_rst); ++ ++ phy->srif_rst = devm_reset_control_get(phy->dev, "srif_rst"); ++ if (IS_ERR(phy->srif_rst)) ++ return PTR_ERR(phy->srif_rst); ++ ++ return 0; ++} ++ ++static void qca_baldur_hs_put_resources(struct qca_baldur_hs_phy *phy) ++{ ++ reset_control_assert(phy->srif_rst); ++ reset_control_assert(phy->por_rst); ++} ++ ++static int qca_baldur_hs_remove(struct platform_device *pdev) ++{ ++ struct qca_baldur_hs_phy *phy = platform_get_drvdata(pdev); ++ ++ usb_remove_phy(&phy->phy); ++ return 0; ++} ++ ++static void qca_baldur_hs_phy_shutdown(struct usb_phy *x) ++{ ++ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); ++ ++ qca_baldur_hs_put_resources(phy); ++} ++ ++static struct usb_phy_io_ops qca_baldur_io_ops = { ++ .read = qca_baldur_phy_read, ++ .write = qca_baldur_phy_write, ++}; ++ ++static const struct qca_baldur_hs_data usb3_hs_data = { ++ .usb3_hs_phy = 1, ++ .phy_config_offset = USB30_HS_PHY_HOST_MODE, ++}; ++ ++static const struct qca_baldur_hs_data usb2_hs_data = { ++ .usb3_hs_phy = 0, ++ .phy_config_offset = USB20_HS_PHY_HOST_MODE, ++}; ++ ++static const struct of_device_id qca_baldur_hs_id_table[] = { ++ { .compatible = "qca,baldur-usb3-hsphy", .data = &usb3_hs_data }, ++ { .compatible = "qca,baldur-usb2-hsphy", .data = &usb2_hs_data }, ++ { /* Sentinel */ } ++}; ++MODULE_DEVICE_TABLE(of, qca_baldur_hs_id_table); ++ ++static int qca_baldur_hs_probe(struct platform_device *pdev) ++{ ++ const struct of_device_id *match; ++ struct qca_baldur_hs_phy *phy; ++ int err; ++ ++ match = of_match_device(qca_baldur_hs_id_table, &pdev->dev); ++ if (!match) ++ return -ENODEV; ++ ++ phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); ++ if (!phy) ++ return -ENOMEM; ++ ++ platform_set_drvdata(pdev, phy); ++ phy->dev = &pdev->dev; ++ ++ phy->data = match->data; ++ ++ err = qca_baldur_hs_get_resources(phy); ++ if (err < 0) { ++ dev_err(&pdev->dev, "failed to request resources: %d\n", err); ++ return err; ++ } ++ ++ phy->phy.dev = phy->dev; ++ phy->phy.label = "qca-baldur-hsphy"; ++ phy->phy.init = qca_baldur_hs_phy_init; ++ phy->phy.shutdown = qca_baldur_hs_phy_shutdown; ++ phy->phy.type = USB_PHY_TYPE_USB2; ++ phy->phy.io_ops = &qca_baldur_io_ops; ++ ++ err = usb_add_phy_dev(&phy->phy); ++ return err; ++} ++ ++static struct platform_driver qca_baldur_hs_driver = { ++ .probe = qca_baldur_hs_probe, ++ .remove = qca_baldur_hs_remove, ++ .driver = { ++ .name = "qca-baldur-hsphy", ++ .owner = THIS_MODULE, ++ .of_match_table = qca_baldur_hs_id_table, ++ }, ++}; ++ ++module_platform_driver(qca_baldur_hs_driver); ++ ++MODULE_ALIAS("platform:qca-baldur-hsphy"); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_DESCRIPTION("USB3 QCA BALDUR HSPHY driver"); +--- /dev/null ++++ b/drivers/usb/phy/phy-qca-uniphy.c +@@ -0,0 +1,171 @@ ++/* Copyright (c) 2015, The Linux Foundation. All rights reserved. ++ * ++ * Permission to use, copy, modify, and/or distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES ++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ++ * ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++struct qca_uni_ss_phy { ++ struct usb_phy phy; ++ struct device *dev; ++ ++ void __iomem *base; ++ ++ struct reset_control *por_rst; ++ ++ unsigned int host; ++}; ++ ++#define phy_to_dw_phy(x) container_of((x), struct qca_uni_ss_phy, phy) ++ ++/** ++ * Write register ++ * ++ * @base - PHY base virtual address. ++ * @offset - register offset. ++ */ ++static u32 qca_uni_ss_read(void __iomem *base, u32 offset) ++{ ++ u32 value; ++ value = readl_relaxed(base + offset); ++ return value; ++} ++ ++/** ++ * Write register ++ * ++ * @base - PHY base virtual address. ++ * @offset - register offset. ++ * @val - value to write. ++ */ ++static void qca_uni_ss_write(void __iomem *base, u32 offset, u32 val) ++{ ++ writel(val, base + offset); ++ udelay(100); ++} ++ ++static void qca_uni_ss_phy_shutdown(struct usb_phy *x) ++{ ++ struct qca_uni_ss_phy *phy = phy_to_dw_phy(x); ++ ++ /* assert SS PHY POR reset */ ++ reset_control_assert(phy->por_rst); ++} ++ ++static int qca_uni_ss_phy_init(struct usb_phy *x) ++{ ++ struct qca_uni_ss_phy *phy = phy_to_dw_phy(x); ++ ++ /* assert SS PHY POR reset */ ++ reset_control_assert(phy->por_rst); ++ ++ msleep(10); ++ ++ msleep(10); ++ ++ /* deassert SS PHY POR reset */ ++ reset_control_deassert(phy->por_rst); ++ ++ return 0; ++} ++ ++static int qca_uni_ss_get_resources(struct platform_device *pdev, ++ struct qca_uni_ss_phy *phy) ++{ ++ struct resource *res; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ phy->base = devm_ioremap_resource(phy->dev, res); ++ if (IS_ERR(phy->base)) ++ return PTR_ERR(phy->base); ++ ++ phy->por_rst = devm_reset_control_get(phy->dev, "por_rst"); ++ if (IS_ERR(phy->por_rst)) ++ return PTR_ERR(phy->por_rst); ++ ++ return 0; ++} ++ ++static int qca_uni_ss_remove(struct platform_device *pdev) ++{ ++ struct qca_uni_ss_phy *phy = platform_get_drvdata(pdev); ++ ++ usb_remove_phy(&phy->phy); ++ return 0; ++} ++ ++static const struct of_device_id qca_uni_ss_id_table[] = { ++ { .compatible = "qca,uni-ssphy" }, ++ { /* Sentinel */ } ++}; ++MODULE_DEVICE_TABLE(of, qca_uni_ss_id_table); ++ ++static int qca_uni_ss_probe(struct platform_device *pdev) ++{ ++ const struct of_device_id *match; ++ struct device_node *np = pdev->dev.of_node; ++ struct qca_uni_ss_phy *phy; ++ int ret; ++ ++ match = of_match_device(qca_uni_ss_id_table, &pdev->dev); ++ if (!match) ++ return -ENODEV; ++ ++ phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); ++ if (!phy) ++ return -ENOMEM; ++ ++ platform_set_drvdata(pdev, phy); ++ phy->dev = &pdev->dev; ++ ++ ret = qca_uni_ss_get_resources(pdev, phy); ++ if (ret < 0) { ++ dev_err(&pdev->dev, "failed to request resources: %d\n", ret); ++ return ret; ++ } ++ ++ phy->phy.dev = phy->dev; ++ phy->phy.label = "qca-uni-ssphy"; ++ phy->phy.init = qca_uni_ss_phy_init; ++ phy->phy.shutdown = qca_uni_ss_phy_shutdown; ++ phy->phy.type = USB_PHY_TYPE_USB3; ++ ++ ret = usb_add_phy_dev(&phy->phy); ++ return ret; ++} ++ ++static struct platform_driver qca_uni_ss_driver = { ++ .probe = qca_uni_ss_probe, ++ .remove = qca_uni_ss_remove, ++ .driver = { ++ .name = "qca-uni-ssphy", ++ .owner = THIS_MODULE, ++ .of_match_table = qca_uni_ss_id_table, ++ }, ++}; ++ ++module_platform_driver(qca_uni_ss_driver); ++ ++MODULE_ALIAS("platform:qca-uni-ssphy"); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_DESCRIPTION("USB3 QCA UNI SSPHY driver"); diff --git a/target/linux/ipq806x/patches-4.9/0024-qcom-ipq4019-add-USB-nodes-to-ipq4019-SoC-device-tre.patch b/target/linux/ipq806x/patches-4.9/0024-qcom-ipq4019-add-USB-nodes-to-ipq4019-SoC-device-tre.patch new file mode 100644 index 0000000000..cea6bd0a79 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0024-qcom-ipq4019-add-USB-nodes-to-ipq4019-SoC-device-tre.patch @@ -0,0 +1,87 @@ +From 0fba6eceb6e16fa8fd5834d65fcb771fa263a44b Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Thu, 17 Mar 2016 16:22:28 -0500 +Subject: [PATCH 24/69] qcom: ipq4019: add USB nodes to ipq4019 SoC device tree + +This adds the SoC nodes to the ipq4019 device tree + +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/qcom-ipq4019.dtsi | 67 +++++++++++++++++++++++++++++++++++++ + 1 file changed, 67 insertions(+) + +--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi +@@ -313,5 +313,72 @@ + compatible = "qcom,pshold"; + reg = <0x4ab000 0x4>; + }; ++ ++ usb3_ss_phy: ssphy@9a000 { ++ compatible = "qca,uni-ssphy"; ++ reg = <0x9a000 0x800>; ++ reg-names = "phy_base"; ++ resets = <&gcc USB3_UNIPHY_PHY_ARES>; ++ reset-names = "por_rst"; ++ status = "disabled"; ++ }; ++ ++ usb3_hs_phy: hsphy@a6000 { ++ compatible = "qca,baldur-usb3-hsphy"; ++ reg = <0xa6000 0x40>; ++ reg-names = "phy_base"; ++ resets = <&gcc USB3_HSPHY_POR_ARES>, <&gcc USB3_HSPHY_S_ARES>; ++ reset-names = "por_rst", "srif_rst"; ++ status = "disabled"; ++ }; ++ ++ usb3@0 { ++ compatible = "qcom,dwc3"; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ clocks = <&gcc GCC_USB3_MASTER_CLK>; ++ clock-names = "core"; ++ ranges; ++ status = "disabled"; ++ ++ dwc3@8a00000 { ++ compatible = "snps,dwc3"; ++ reg = <0x8a00000 0xf8000>; ++ interrupts = <0 132 0>; ++ usb-phy = <&usb3_hs_phy>, <&usb3_ss_phy>; ++ phy-names = "usb2-phy", "usb3-phy"; ++ tx-fifo-resize; ++ dr_mode = "host"; ++ }; ++ }; ++ ++ usb2_hs_phy: hsphy@a8000 { ++ compatible = "qca,baldur-usb2-hsphy"; ++ reg = <0xa8000 0x40>; ++ reg-names = "phy_base"; ++ resets = <&gcc USB2_HSPHY_POR_ARES>, <&gcc USB2_HSPHY_S_ARES>; ++ reset-names = "por_rst", "srif_rst"; ++ status = "disabled"; ++ }; ++ ++ usb2@0 { ++ compatible = "qcom,dwc3"; ++ #address-cells = <1>; ++ #size-cells = <1>; ++ clocks = <&gcc GCC_USB2_MASTER_CLK>; ++ clock-names = "core"; ++ ranges; ++ status = "disabled"; ++ ++ dwc3@6000000 { ++ compatible = "snps,dwc3"; ++ reg = <0x6000000 0xf8000>; ++ interrupts = <0 136 0>; ++ usb-phy = <&usb2_hs_phy>; ++ phy-names = "usb2-phy"; ++ tx-fifo-resize; ++ dr_mode = "host"; ++ }; ++ }; + }; + }; diff --git a/target/linux/ipq806x/patches-4.9/0025-qcom-ipq4019-enable-USB-bus-for-DK01.1-board.patch b/target/linux/ipq806x/patches-4.9/0025-qcom-ipq4019-enable-USB-bus-for-DK01.1-board.patch new file mode 100644 index 0000000000..975f42f7d1 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0025-qcom-ipq4019-enable-USB-bus-for-DK01.1-board.patch @@ -0,0 +1,45 @@ +From ae5e11c926f710595d0080e51bd10e704776669d Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Mon, 21 Mar 2016 16:12:05 -0500 +Subject: [PATCH 25/69] qcom: ipq4019: enable USB bus for DK01.1 board + +This enables the USB block + +Change-Id: I384dd1874bba341713f384cf6199abd446e3f3c0 +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi | 24 ++++++++++++++++++++++++ + 1 file changed, 24 insertions(+) + +--- a/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi +@@ -108,5 +108,29 @@ + watchdog@b017000 { + status = "ok"; + }; ++ ++ usb3_ss_phy: ssphy@0 { ++ status = "ok"; ++ }; ++ ++ dummy_ss_phy: ssphy@1 { ++ status = "ok"; ++ }; ++ ++ usb3_hs_phy: hsphy@a6000 { ++ status = "ok"; ++ }; ++ ++ usb2_hs_phy: hsphy@a8000 { ++ status = "ok"; ++ }; ++ ++ usb3: usb3@8a00000 { ++ status = "ok"; ++ }; ++ ++ usb2: usb2@6000000 { ++ status = "ok"; ++ }; + }; + }; diff --git a/target/linux/ipq806x/patches-4.9/0026-cpufreq-dt-qcom-ipq4019-Add-compat-for-qcom-ipq4019.patch b/target/linux/ipq806x/patches-4.9/0026-cpufreq-dt-qcom-ipq4019-Add-compat-for-qcom-ipq4019.patch deleted file mode 100644 index 3d6a827007..0000000000 --- a/target/linux/ipq806x/patches-4.9/0026-cpufreq-dt-qcom-ipq4019-Add-compat-for-qcom-ipq4019.patch +++ /dev/null @@ -1,28 +0,0 @@ -From 94aa51061597d9db86f3ad4d54eb4a560fa66f2f Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Wed, 13 Apr 2016 14:03:14 -0500 -Subject: [PATCH 26/37] cpufreq: dt: qcom: ipq4019: Add compat for qcom - ipq4019 - -Instantiate cpufreq-dt-platdev driver for ipq4019 to support changing -CPU frequencies. - -This depends on Viresh Kumar's patches in this series: -http://comments.gmane.org/gmane.linux.power-management.general/73887 - -Signed-off-by: Matthew McClintock ---- - drivers/cpufreq/cpufreq-dt-platdev.c | 2 ++ - 1 file changed, 2 insertions(+) - ---- a/drivers/cpufreq/cpufreq-dt-platdev.c -+++ b/drivers/cpufreq/cpufreq-dt-platdev.c -@@ -35,6 +35,8 @@ static const struct of_device_id machine - - { .compatible = "marvell,berlin", }, - -+ { .compatible = "qcom,ipq4019", }, -+ - { .compatible = "samsung,exynos3250", }, - { .compatible = "samsung,exynos4210", }, - { .compatible = "samsung,exynos4212", }, diff --git a/target/linux/ipq806x/patches-4.9/0026-dts-ipq4019-Add-support-for-IPQ4019-DK04-board.patch b/target/linux/ipq806x/patches-4.9/0026-dts-ipq4019-Add-support-for-IPQ4019-DK04-board.patch new file mode 100644 index 0000000000..32c52b07ed --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0026-dts-ipq4019-Add-support-for-IPQ4019-DK04-board.patch @@ -0,0 +1,258 @@ +From ec3e465ecf3f7dd26f2e22170e4c5f4b9979df5d Mon Sep 17 00:00:00 2001 +From: Matthew McClintock +Date: Mon, 21 Mar 2016 15:55:21 -0500 +Subject: [PATCH 26/69] dts: ipq4019: Add support for IPQ4019 DK04 board + +This is pretty similiar to a DK01 but has a bit more IO. Some notable +differences are listed below however they are not in the device tree yet +as we continue adding more support + +- second serial port +- PCIe +- NAND +- SD/EMMC + +Signed-off-by: Matthew McClintock +--- + arch/arm/boot/dts/Makefile | 1 + + arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi | 12 +- + arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c1.dts | 21 +++ + arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi | 163 ++++++++++++++++++++++++ + 4 files changed, 189 insertions(+), 8 deletions(-) + create mode 100644 arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c1.dts + create mode 100644 arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi + +--- a/arch/arm/boot/dts/Makefile ++++ b/arch/arm/boot/dts/Makefile +@@ -617,6 +617,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \ + qcom-apq8084-ifc6540.dtb \ + qcom-apq8084-mtp.dtb \ + qcom-ipq4019-ap.dk01.1-c1.dtb \ ++ qcom-ipq4019-ap.dk04.1-c1.dtb \ + qcom-ipq8064-ap148.dtb \ + qcom-msm8660-surf.dtb \ + qcom-msm8960-cdp.dtb \ +--- a/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi ++++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi +@@ -109,11 +109,7 @@ + status = "ok"; + }; + +- usb3_ss_phy: ssphy@0 { +- status = "ok"; +- }; +- +- dummy_ss_phy: ssphy@1 { ++ usb3_ss_phy: ssphy@9a000 { + status = "ok"; + }; + +@@ -121,15 +117,15 @@ + status = "ok"; + }; + +- usb2_hs_phy: hsphy@a8000 { ++ usb3@0 { + status = "ok"; + }; + +- usb3: usb3@8a00000 { ++ usb2_hs_phy: hsphy@a8000 { + status = "ok"; + }; + +- usb2: usb2@6000000 { ++ usb2@0{ + status = "ok"; + }; + }; +--- /dev/null ++++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c1.dts +@@ -0,0 +1,21 @@ ++/* Copyright (c) 2015, The Linux Foundation. All rights reserved. ++ * ++ * Permission to use, copy, modify, and/or distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES ++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ++ * ++ */ ++ ++#include "qcom-ipq4019-ap.dk04.1.dtsi" ++ ++/ { ++ model = "Qualcomm Technologies, Inc. IPQ40xx/AP-DK04.1-C1"; ++}; +--- /dev/null ++++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi +@@ -0,0 +1,163 @@ ++/* Copyright (c) 2015, The Linux Foundation. All rights reserved. ++ * ++ * Permission to use, copy, modify, and/or distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES ++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ++ * ++ */ ++ ++#include "qcom-ipq4019.dtsi" ++ ++/ { ++ model = "Qualcomm Technologies, Inc. IPQ4019/AP-DK04.1"; ++ compatible = "qcom,ipq4019"; ++ ++ clocks { ++ xo: xo { ++ compatible = "fixed-clock"; ++ clock-frequency = <48000000>; ++ #clock-cells = <0>; ++ }; ++ }; ++ ++ soc { ++ timer { ++ compatible = "arm,armv7-timer"; ++ interrupts = <1 2 0xf08>, ++ <1 3 0xf08>, ++ <1 4 0xf08>, ++ <1 1 0xf08>; ++ clock-frequency = <48000000>; ++ }; ++ ++ pinctrl@0x01000000 { ++ serial_0_pins: serial_pinmux { ++ mux { ++ pins = "gpio16", "gpio17"; ++ function = "blsp_uart0"; ++ bias-disable; ++ }; ++ }; ++ ++ serial_1_pins: serial1_pinmux { ++ mux { ++ pins = "gpio8", "gpio9"; ++ function = "blsp_uart1"; ++ bias-disable; ++ }; ++ }; ++ ++ spi_0_pins: spi_0_pinmux { ++ pinmux { ++ function = "blsp_spi0"; ++ pins = "gpio13", "gpio14", "gpio15"; ++ }; ++ pinmux_cs { ++ function = "gpio"; ++ pins = "gpio12"; ++ }; ++ pinconf { ++ pins = "gpio13", "gpio14", "gpio15"; ++ drive-strength = <12>; ++ bias-disable; ++ }; ++ pinconf_cs { ++ pins = "gpio12"; ++ drive-strength = <2>; ++ bias-disable; ++ output-high; ++ }; ++ }; ++ ++ i2c_0_pins: i2c_0_pinmux { ++ pinmux { ++ function = "blsp_i2c0"; ++ pins = "gpio10", "gpio11"; ++ }; ++ pinconf { ++ pins = "gpio10", "gpio11"; ++ drive-strength = <16>; ++ bias-disable; ++ }; ++ }; ++ }; ++ ++ blsp_dma: dma@7884000 { ++ status = "ok"; ++ }; ++ ++ spi_0: spi@78b5000 { ++ pinctrl-0 = <&spi_0_pins>; ++ pinctrl-names = "default"; ++ status = "ok"; ++ cs-gpios = <&tlmm 12 0>; ++ ++ mx25l25635e@0 { ++ #address-cells = <1>; ++ #size-cells = <1>; ++ reg = <0>; ++ compatible = "mx25l25635e"; ++ spi-max-frequency = <24000000>; ++ }; ++ }; ++ ++ i2c_0: i2c@78b7000 { /* BLSP1 QUP2 */ ++ pinctrl-0 = <&i2c_0_pins>; ++ pinctrl-names = "default"; ++ ++ status = "ok"; ++ }; ++ ++ serial@78af000 { ++ pinctrl-0 = <&serial_0_pins>; ++ pinctrl-names = "default"; ++ status = "ok"; ++ }; ++ ++ serial@78b0000 { ++ pinctrl-0 = <&serial_1_pins>; ++ pinctrl-names = "default"; ++ status = "ok"; ++ }; ++ ++ usb3_ss_phy: ssphy@9a000 { ++ status = "ok"; ++ }; ++ ++ usb3_hs_phy: hsphy@a6000 { ++ status = "ok"; ++ }; ++ ++ usb3: usb3@0 { ++ status = "ok"; ++ }; ++ ++ usb2_hs_phy: hsphy@a8000 { ++ status = "ok"; ++ }; ++ ++ usb2: usb2@6000000 { ++ status = "ok"; ++ }; ++ ++ cryptobam: dma@8e04000 { ++ status = "ok"; ++ }; ++ ++ crypto@8e3a000 { ++ status = "ok"; ++ }; ++ ++ watchdog@b017000 { ++ status = "ok"; ++ }; ++ }; ++}; diff --git a/target/linux/ipq806x/patches-4.9/0027-clk-ipq4019-report-accurate-fixed-clock-rates.patch b/target/linux/ipq806x/patches-4.9/0027-clk-ipq4019-report-accurate-fixed-clock-rates.patch deleted file mode 100644 index 87b25d55ee..0000000000 --- a/target/linux/ipq806x/patches-4.9/0027-clk-ipq4019-report-accurate-fixed-clock-rates.patch +++ /dev/null @@ -1,33 +0,0 @@ -From 4f0328557a670d481f2609474b56890c28ab4694 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Thu, 28 Apr 2016 12:55:08 -0500 -Subject: [PATCH 27/37] clk: ipq4019: report accurate fixed clock rates - -This looks like a copy-and-paste gone wrong, but update all -the fixed clock rates to report the correct values. - -Signed-off-by: Matthew McClintock ---- - drivers/clk/qcom/gcc-ipq4019.c | 10 +++++----- - 1 file changed, 5 insertions(+), 5 deletions(-) - ---- a/drivers/clk/qcom/gcc-ipq4019.c -+++ b/drivers/clk/qcom/gcc-ipq4019.c -@@ -1317,12 +1317,12 @@ static int gcc_ipq4019_probe(struct plat - { - struct device *dev = &pdev->dev; - -- clk_register_fixed_rate(dev, "fepll125", "xo", 0, 200000000); -- clk_register_fixed_rate(dev, "fepll125dly", "xo", 0, 200000000); -- clk_register_fixed_rate(dev, "fepllwcss2g", "xo", 0, 200000000); -- clk_register_fixed_rate(dev, "fepllwcss5g", "xo", 0, 200000000); -+ clk_register_fixed_rate(dev, "fepll125", "xo", 0, 125000000); -+ clk_register_fixed_rate(dev, "fepll125dly", "xo", 0, 125000000); -+ clk_register_fixed_rate(dev, "fepllwcss2g", "xo", 0, 250000000); -+ clk_register_fixed_rate(dev, "fepllwcss5g", "xo", 0, 250000000); - clk_register_fixed_rate(dev, "fepll200", "xo", 0, 200000000); -- clk_register_fixed_rate(dev, "fepll500", "xo", 0, 200000000); -+ clk_register_fixed_rate(dev, "fepll500", "xo", 0, 500000000); - clk_register_fixed_rate(dev, "ddrpllapss", "xo", 0, 666000000); - - return qcom_cc_probe(pdev, &gcc_ipq4019_desc); diff --git a/target/linux/ipq806x/patches-4.9/0027-clk-qcom-Add-support-for-SMD-RPM-Clocks.patch b/target/linux/ipq806x/patches-4.9/0027-clk-qcom-Add-support-for-SMD-RPM-Clocks.patch new file mode 100644 index 0000000000..f7ff1da8d3 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0027-clk-qcom-Add-support-for-SMD-RPM-Clocks.patch @@ -0,0 +1,731 @@ +From 41ee71bae788e1858c0a387d010c342e6bb3f4b0 Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Wed, 2 Nov 2016 17:56:56 +0200 +Subject: [PATCH 27/69] clk: qcom: Add support for SMD-RPM Clocks + +This adds initial support for clocks controlled by the Resource +Power Manager (RPM) processor on some Qualcomm SoCs, which use +the qcom_smd_rpm driver to communicate with RPM. +Such platforms are msm8916, apq8084 and msm8974. + +The RPM is a dedicated hardware engine for managing the shared +SoC resources in order to keep the lowest power profile. It +communicates with other hardware subsystems via shared memory +and accepts clock requests, aggregates the requests and turns +the clocks on/off or scales them on demand. + +This driver is based on the codeaurora.org driver: +https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/clk/qcom/clock-rpm.c + +Signed-off-by: Georgi Djakov +--- + .../devicetree/bindings/clock/qcom,rpmcc.txt | 36 ++ + drivers/clk/qcom/Kconfig | 16 + + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/clk-smd-rpm.c | 571 +++++++++++++++++++++ + include/dt-bindings/clock/qcom,rpmcc.h | 45 ++ + 5 files changed, 669 insertions(+) + create mode 100644 Documentation/devicetree/bindings/clock/qcom,rpmcc.txt + create mode 100644 drivers/clk/qcom/clk-smd-rpm.c + create mode 100644 include/dt-bindings/clock/qcom,rpmcc.h + +--- /dev/null ++++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt +@@ -0,0 +1,36 @@ ++Qualcomm RPM Clock Controller Binding ++------------------------------------------------ ++The RPM is a dedicated hardware engine for managing the shared ++SoC resources in order to keep the lowest power profile. It ++communicates with other hardware subsystems via shared memory ++and accepts clock requests, aggregates the requests and turns ++the clocks on/off or scales them on demand. ++ ++Required properties : ++- compatible : shall contain only one of the following. The generic ++ compatible "qcom,rpmcc" should be also included. ++ ++ "qcom,rpmcc-msm8916", "qcom,rpmcc" ++ ++- #clock-cells : shall contain 1 ++ ++Example: ++ smd { ++ compatible = "qcom,smd"; ++ ++ rpm { ++ interrupts = <0 168 1>; ++ qcom,ipc = <&apcs 8 0>; ++ qcom,smd-edge = <15>; ++ ++ rpm_requests { ++ compatible = "qcom,rpm-msm8916"; ++ qcom,smd-channels = "rpm_requests"; ++ ++ rpmcc: clock-controller { ++ compatible = "qcom,rpmcc-msm8916", "qcom,rpmcc"; ++ #clock-cells = <1>; ++ }; ++ }; ++ }; ++ }; +--- a/drivers/clk/qcom/Kconfig ++++ b/drivers/clk/qcom/Kconfig +@@ -2,6 +2,9 @@ config QCOM_GDSC + bool + select PM_GENERIC_DOMAINS if PM + ++config QCOM_RPMCC ++ bool ++ + config COMMON_CLK_QCOM + tristate "Support for Qualcomm's clock controllers" + depends on OF +@@ -9,6 +12,19 @@ config COMMON_CLK_QCOM + select REGMAP_MMIO + select RESET_CONTROLLER + ++config QCOM_CLK_SMD_RPM ++ tristate "RPM over SMD based Clock Controller" ++ depends on COMMON_CLK_QCOM && QCOM_SMD_RPM ++ select QCOM_RPMCC ++ help ++ The RPM (Resource Power Manager) is a dedicated hardware engine for ++ managing the shared SoC resources in order to keep the lowest power ++ profile. It communicates with other hardware subsystems via shared ++ memory and accepts clock requests, aggregates the requests and turns ++ the clocks on/off or scales them on demand. ++ Say Y if you want to support the clocks exposed by the RPM on ++ platforms such as apq8016, apq8084, msm8974 etc. ++ + config APQ_GCC_8084 + tristate "APQ8084 Global Clock Controller" + select QCOM_GDSC +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -29,3 +29,4 @@ obj-$(CONFIG_MSM_LCC_8960) += lcc-msm896 + obj-$(CONFIG_MSM_MMCC_8960) += mmcc-msm8960.o + obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8974.o + obj-$(CONFIG_MSM_MMCC_8996) += mmcc-msm8996.o ++obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o +--- /dev/null ++++ b/drivers/clk/qcom/clk-smd-rpm.c +@@ -0,0 +1,571 @@ ++/* ++ * Copyright (c) 2016, Linaro Limited ++ * Copyright (c) 2014, The Linux Foundation. All rights reserved. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++ ++#define QCOM_RPM_KEY_SOFTWARE_ENABLE 0x6e657773 ++#define QCOM_RPM_KEY_PIN_CTRL_CLK_BUFFER_ENABLE_KEY 0x62636370 ++#define QCOM_RPM_SMD_KEY_RATE 0x007a484b ++#define QCOM_RPM_SMD_KEY_ENABLE 0x62616e45 ++#define QCOM_RPM_SMD_KEY_STATE 0x54415453 ++#define QCOM_RPM_SCALING_ENABLE_ID 0x2 ++ ++#define __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, stat_id, \ ++ key) \ ++ static struct clk_smd_rpm _platform##_##_active; \ ++ static struct clk_smd_rpm _platform##_##_name = { \ ++ .rpm_res_type = (type), \ ++ .rpm_clk_id = (r_id), \ ++ .rpm_status_id = (stat_id), \ ++ .rpm_key = (key), \ ++ .peer = &_platform##_##_active, \ ++ .rate = INT_MAX, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_smd_rpm_ops, \ ++ .name = #_name, \ ++ .parent_names = (const char *[]){ "xo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ }; \ ++ static struct clk_smd_rpm _platform##_##_active = { \ ++ .rpm_res_type = (type), \ ++ .rpm_clk_id = (r_id), \ ++ .rpm_status_id = (stat_id), \ ++ .active_only = true, \ ++ .rpm_key = (key), \ ++ .peer = &_platform##_##_name, \ ++ .rate = INT_MAX, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_smd_rpm_ops, \ ++ .name = #_active, \ ++ .parent_names = (const char *[]){ "xo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ } ++ ++#define __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, r_id, \ ++ stat_id, r, key) \ ++ static struct clk_smd_rpm _platform##_##_active; \ ++ static struct clk_smd_rpm _platform##_##_name = { \ ++ .rpm_res_type = (type), \ ++ .rpm_clk_id = (r_id), \ ++ .rpm_status_id = (stat_id), \ ++ .rpm_key = (key), \ ++ .branch = true, \ ++ .peer = &_platform##_##_active, \ ++ .rate = (r), \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_smd_rpm_branch_ops, \ ++ .name = #_name, \ ++ .parent_names = (const char *[]){ "xo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ }; \ ++ static struct clk_smd_rpm _platform##_##_active = { \ ++ .rpm_res_type = (type), \ ++ .rpm_clk_id = (r_id), \ ++ .rpm_status_id = (stat_id), \ ++ .active_only = true, \ ++ .rpm_key = (key), \ ++ .branch = true, \ ++ .peer = &_platform##_##_name, \ ++ .rate = (r), \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_smd_rpm_branch_ops, \ ++ .name = #_active, \ ++ .parent_names = (const char *[]){ "xo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ } ++ ++#define DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id) \ ++ __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, \ ++ 0, QCOM_RPM_SMD_KEY_RATE) ++ ++#define DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, r_id, r) \ ++ __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, \ ++ r_id, 0, r, QCOM_RPM_SMD_KEY_ENABLE) ++ ++#define DEFINE_CLK_SMD_RPM_QDSS(_platform, _name, _active, type, r_id) \ ++ __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, \ ++ 0, QCOM_RPM_SMD_KEY_STATE) ++ ++#define DEFINE_CLK_SMD_RPM_XO_BUFFER(_platform, _name, _active, r_id) \ ++ __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, \ ++ QCOM_SMD_RPM_CLK_BUF_A, r_id, 0, 1000, \ ++ QCOM_RPM_KEY_SOFTWARE_ENABLE) ++ ++#define DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(_platform, _name, _active, r_id) \ ++ __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, \ ++ QCOM_SMD_RPM_CLK_BUF_A, r_id, 0, 1000, \ ++ QCOM_RPM_KEY_PIN_CTRL_CLK_BUFFER_ENABLE_KEY) ++ ++#define to_clk_smd_rpm(_hw) container_of(_hw, struct clk_smd_rpm, hw) ++ ++struct clk_smd_rpm { ++ const int rpm_res_type; ++ const int rpm_key; ++ const int rpm_clk_id; ++ const int rpm_status_id; ++ const bool active_only; ++ bool enabled; ++ bool branch; ++ struct clk_smd_rpm *peer; ++ struct clk_hw hw; ++ unsigned long rate; ++ struct qcom_smd_rpm *rpm; ++}; ++ ++struct clk_smd_rpm_req { ++ __le32 key; ++ __le32 nbytes; ++ __le32 value; ++}; ++ ++struct rpm_cc { ++ struct qcom_rpm *rpm; ++ struct clk_hw_onecell_data data; ++ struct clk_hw *hws[]; ++}; ++ ++struct rpm_smd_clk_desc { ++ struct clk_smd_rpm **clks; ++ size_t num_clks; ++}; ++ ++static DEFINE_MUTEX(rpm_smd_clk_lock); ++ ++static int clk_smd_rpm_handoff(struct clk_smd_rpm *r) ++{ ++ int ret; ++ struct clk_smd_rpm_req req = { ++ .key = cpu_to_le32(r->rpm_key), ++ .nbytes = cpu_to_le32(sizeof(u32)), ++ .value = cpu_to_le32(INT_MAX), ++ }; ++ ++ ret = qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_ACTIVE_STATE, ++ r->rpm_res_type, r->rpm_clk_id, &req, ++ sizeof(req)); ++ if (ret) ++ return ret; ++ ret = qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_SLEEP_STATE, ++ r->rpm_res_type, r->rpm_clk_id, &req, ++ sizeof(req)); ++ if (ret) ++ return ret; ++ ++ return 0; ++} ++ ++static int clk_smd_rpm_set_rate_active(struct clk_smd_rpm *r, ++ unsigned long rate) ++{ ++ struct clk_smd_rpm_req req = { ++ .key = cpu_to_le32(r->rpm_key), ++ .nbytes = cpu_to_le32(sizeof(u32)), ++ .value = cpu_to_le32(DIV_ROUND_UP(rate, 1000)), /* to kHz */ ++ }; ++ ++ return qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_ACTIVE_STATE, ++ r->rpm_res_type, r->rpm_clk_id, &req, ++ sizeof(req)); ++} ++ ++static int clk_smd_rpm_set_rate_sleep(struct clk_smd_rpm *r, ++ unsigned long rate) ++{ ++ struct clk_smd_rpm_req req = { ++ .key = cpu_to_le32(r->rpm_key), ++ .nbytes = cpu_to_le32(sizeof(u32)), ++ .value = cpu_to_le32(DIV_ROUND_UP(rate, 1000)), /* to kHz */ ++ }; ++ ++ return qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_SLEEP_STATE, ++ r->rpm_res_type, r->rpm_clk_id, &req, ++ sizeof(req)); ++} ++ ++static void to_active_sleep(struct clk_smd_rpm *r, unsigned long rate, ++ unsigned long *active, unsigned long *sleep) ++{ ++ *active = rate; ++ ++ /* ++ * Active-only clocks don't care what the rate is during sleep. So, ++ * they vote for zero. ++ */ ++ if (r->active_only) ++ *sleep = 0; ++ else ++ *sleep = *active; ++} ++ ++static int clk_smd_rpm_prepare(struct clk_hw *hw) ++{ ++ struct clk_smd_rpm *r = to_clk_smd_rpm(hw); ++ struct clk_smd_rpm *peer = r->peer; ++ unsigned long this_rate = 0, this_sleep_rate = 0; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ unsigned long active_rate, sleep_rate; ++ int ret = 0; ++ ++ mutex_lock(&rpm_smd_clk_lock); ++ ++ /* Don't send requests to the RPM if the rate has not been set. */ ++ if (!r->rate) ++ goto out; ++ ++ to_active_sleep(r, r->rate, &this_rate, &this_sleep_rate); ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, ++ &peer_rate, &peer_sleep_rate); ++ ++ active_rate = max(this_rate, peer_rate); ++ ++ if (r->branch) ++ active_rate = !!active_rate; ++ ++ ret = clk_smd_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = max(this_sleep_rate, peer_sleep_rate); ++ if (r->branch) ++ sleep_rate = !!sleep_rate; ++ ++ ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ /* Undo the active set vote and restore it */ ++ ret = clk_smd_rpm_set_rate_active(r, peer_rate); ++ ++out: ++ if (!ret) ++ r->enabled = true; ++ ++ mutex_unlock(&rpm_smd_clk_lock); ++ ++ return ret; ++} ++ ++static void clk_smd_rpm_unprepare(struct clk_hw *hw) ++{ ++ struct clk_smd_rpm *r = to_clk_smd_rpm(hw); ++ struct clk_smd_rpm *peer = r->peer; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ unsigned long active_rate, sleep_rate; ++ int ret; ++ ++ mutex_lock(&rpm_smd_clk_lock); ++ ++ if (!r->rate) ++ goto out; ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, &peer_rate, ++ &peer_sleep_rate); ++ ++ active_rate = r->branch ? !!peer_rate : peer_rate; ++ ret = clk_smd_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = r->branch ? !!peer_sleep_rate : peer_sleep_rate; ++ ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ goto out; ++ ++ r->enabled = false; ++ ++out: ++ mutex_unlock(&rpm_smd_clk_lock); ++} ++ ++static int clk_smd_rpm_set_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long parent_rate) ++{ ++ struct clk_smd_rpm *r = to_clk_smd_rpm(hw); ++ struct clk_smd_rpm *peer = r->peer; ++ unsigned long active_rate, sleep_rate; ++ unsigned long this_rate = 0, this_sleep_rate = 0; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ int ret = 0; ++ ++ mutex_lock(&rpm_smd_clk_lock); ++ ++ if (!r->enabled) ++ goto out; ++ ++ to_active_sleep(r, rate, &this_rate, &this_sleep_rate); ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, ++ &peer_rate, &peer_sleep_rate); ++ ++ active_rate = max(this_rate, peer_rate); ++ ret = clk_smd_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = max(this_sleep_rate, peer_sleep_rate); ++ ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ goto out; ++ ++ r->rate = rate; ++ ++out: ++ mutex_unlock(&rpm_smd_clk_lock); ++ ++ return ret; ++} ++ ++static long clk_smd_rpm_round_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long *parent_rate) ++{ ++ /* ++ * RPM handles rate rounding and we don't have a way to ++ * know what the rate will be, so just return whatever ++ * rate is requested. ++ */ ++ return rate; ++} ++ ++static unsigned long clk_smd_rpm_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct clk_smd_rpm *r = to_clk_smd_rpm(hw); ++ ++ /* ++ * RPM handles rate rounding and we don't have a way to ++ * know what the rate will be, so just return whatever ++ * rate was set. ++ */ ++ return r->rate; ++} ++ ++static int clk_smd_rpm_enable_scaling(struct qcom_smd_rpm *rpm) ++{ ++ int ret; ++ struct clk_smd_rpm_req req = { ++ .key = cpu_to_le32(QCOM_RPM_SMD_KEY_ENABLE), ++ .nbytes = cpu_to_le32(sizeof(u32)), ++ .value = cpu_to_le32(1), ++ }; ++ ++ ret = qcom_rpm_smd_write(rpm, QCOM_SMD_RPM_SLEEP_STATE, ++ QCOM_SMD_RPM_MISC_CLK, ++ QCOM_RPM_SCALING_ENABLE_ID, &req, sizeof(req)); ++ if (ret) { ++ pr_err("RPM clock scaling (sleep set) not enabled!\n"); ++ return ret; ++ } ++ ++ ret = qcom_rpm_smd_write(rpm, QCOM_SMD_RPM_ACTIVE_STATE, ++ QCOM_SMD_RPM_MISC_CLK, ++ QCOM_RPM_SCALING_ENABLE_ID, &req, sizeof(req)); ++ if (ret) { ++ pr_err("RPM clock scaling (active set) not enabled!\n"); ++ return ret; ++ } ++ ++ pr_debug("%s: RPM clock scaling is enabled\n", __func__); ++ return 0; ++} ++ ++static const struct clk_ops clk_smd_rpm_ops = { ++ .prepare = clk_smd_rpm_prepare, ++ .unprepare = clk_smd_rpm_unprepare, ++ .set_rate = clk_smd_rpm_set_rate, ++ .round_rate = clk_smd_rpm_round_rate, ++ .recalc_rate = clk_smd_rpm_recalc_rate, ++}; ++ ++static const struct clk_ops clk_smd_rpm_branch_ops = { ++ .prepare = clk_smd_rpm_prepare, ++ .unprepare = clk_smd_rpm_unprepare, ++ .round_rate = clk_smd_rpm_round_rate, ++ .recalc_rate = clk_smd_rpm_recalc_rate, ++}; ++ ++/* msm8916 */ ++DEFINE_CLK_SMD_RPM(msm8916, pcnoc_clk, pcnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0); ++DEFINE_CLK_SMD_RPM(msm8916, snoc_clk, snoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 1); ++DEFINE_CLK_SMD_RPM(msm8916, bimc_clk, bimc_a_clk, QCOM_SMD_RPM_MEM_CLK, 0); ++DEFINE_CLK_SMD_RPM_QDSS(msm8916, qdss_clk, qdss_a_clk, QCOM_SMD_RPM_MISC_CLK, 1); ++DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, bb_clk1, bb_clk1_a, 1); ++DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, bb_clk2, bb_clk2_a, 2); ++DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, rf_clk1, rf_clk1_a, 4); ++DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, rf_clk2, rf_clk2_a, 5); ++DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, bb_clk1_pin, bb_clk1_a_pin, 1); ++DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, bb_clk2_pin, bb_clk2_a_pin, 2); ++DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, rf_clk1_pin, rf_clk1_a_pin, 4); ++DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, rf_clk2_pin, rf_clk2_a_pin, 5); ++ ++static struct clk_smd_rpm *msm8916_clks[] = { ++ [RPM_SMD_PCNOC_CLK] = &msm8916_pcnoc_clk, ++ [RPM_SMD_PCNOC_A_CLK] = &msm8916_pcnoc_a_clk, ++ [RPM_SMD_SNOC_CLK] = &msm8916_snoc_clk, ++ [RPM_SMD_SNOC_A_CLK] = &msm8916_snoc_a_clk, ++ [RPM_SMD_BIMC_CLK] = &msm8916_bimc_clk, ++ [RPM_SMD_BIMC_A_CLK] = &msm8916_bimc_a_clk, ++ [RPM_SMD_QDSS_CLK] = &msm8916_qdss_clk, ++ [RPM_SMD_QDSS_A_CLK] = &msm8916_qdss_a_clk, ++ [RPM_SMD_BB_CLK1] = &msm8916_bb_clk1, ++ [RPM_SMD_BB_CLK1_A] = &msm8916_bb_clk1_a, ++ [RPM_SMD_BB_CLK2] = &msm8916_bb_clk2, ++ [RPM_SMD_BB_CLK2_A] = &msm8916_bb_clk2_a, ++ [RPM_SMD_RF_CLK1] = &msm8916_rf_clk1, ++ [RPM_SMD_RF_CLK1_A] = &msm8916_rf_clk1_a, ++ [RPM_SMD_RF_CLK2] = &msm8916_rf_clk2, ++ [RPM_SMD_RF_CLK2_A] = &msm8916_rf_clk2_a, ++ [RPM_SMD_BB_CLK1_PIN] = &msm8916_bb_clk1_pin, ++ [RPM_SMD_BB_CLK1_A_PIN] = &msm8916_bb_clk1_a_pin, ++ [RPM_SMD_BB_CLK2_PIN] = &msm8916_bb_clk2_pin, ++ [RPM_SMD_BB_CLK2_A_PIN] = &msm8916_bb_clk2_a_pin, ++ [RPM_SMD_RF_CLK1_PIN] = &msm8916_rf_clk1_pin, ++ [RPM_SMD_RF_CLK1_A_PIN] = &msm8916_rf_clk1_a_pin, ++ [RPM_SMD_RF_CLK2_PIN] = &msm8916_rf_clk2_pin, ++ [RPM_SMD_RF_CLK2_A_PIN] = &msm8916_rf_clk2_a_pin, ++}; ++ ++static const struct rpm_smd_clk_desc rpm_clk_msm8916 = { ++ .clks = msm8916_clks, ++ .num_clks = ARRAY_SIZE(msm8916_clks), ++}; ++ ++static const struct of_device_id rpm_smd_clk_match_table[] = { ++ { .compatible = "qcom,rpmcc-msm8916", .data = &rpm_clk_msm8916 }, ++ { } ++}; ++MODULE_DEVICE_TABLE(of, rpm_smd_clk_match_table); ++ ++static int rpm_smd_clk_probe(struct platform_device *pdev) ++{ ++ struct clk_hw **hws; ++ struct rpm_cc *rcc; ++ struct clk_hw_onecell_data *data; ++ int ret; ++ size_t num_clks, i; ++ struct qcom_smd_rpm *rpm; ++ struct clk_smd_rpm **rpm_smd_clks; ++ const struct rpm_smd_clk_desc *desc; ++ ++ rpm = dev_get_drvdata(pdev->dev.parent); ++ if (!rpm) { ++ dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n"); ++ return -ENODEV; ++ } ++ ++ desc = of_device_get_match_data(&pdev->dev); ++ if (!desc) ++ return -EINVAL; ++ ++ rpm_smd_clks = desc->clks; ++ num_clks = desc->num_clks; ++ ++ rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc) + sizeof(*hws) * num_clks, ++ GFP_KERNEL); ++ if (!rcc) ++ return -ENOMEM; ++ ++ hws = rcc->hws; ++ data = &rcc->data; ++ data->num = num_clks; ++ ++ for (i = 0; i < num_clks; i++) { ++ if (!rpm_smd_clks[i]) { ++ continue; ++ } ++ ++ rpm_smd_clks[i]->rpm = rpm; ++ ++ ret = clk_smd_rpm_handoff(rpm_smd_clks[i]); ++ if (ret) ++ goto err; ++ } ++ ++ ret = clk_smd_rpm_enable_scaling(rpm); ++ if (ret) ++ goto err; ++ ++ for (i = 0; i < num_clks; i++) { ++ if (!rpm_smd_clks[i]) { ++ data->hws[i] = ERR_PTR(-ENOENT); ++ continue; ++ } ++ ++ ret = devm_clk_hw_register(&pdev->dev, &rpm_smd_clks[i]->hw); ++ if (ret) ++ goto err; ++ } ++ ++ ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, ++ data); ++ if (ret) ++ goto err; ++ ++ return 0; ++err: ++ dev_err(&pdev->dev, "Error registering SMD clock driver (%d)\n", ret); ++ return ret; ++} ++ ++static int rpm_smd_clk_remove(struct platform_device *pdev) ++{ ++ of_clk_del_provider(pdev->dev.of_node); ++ return 0; ++} ++ ++static struct platform_driver rpm_smd_clk_driver = { ++ .driver = { ++ .name = "qcom-clk-smd-rpm", ++ .of_match_table = rpm_smd_clk_match_table, ++ }, ++ .probe = rpm_smd_clk_probe, ++ .remove = rpm_smd_clk_remove, ++}; ++ ++static int __init rpm_smd_clk_init(void) ++{ ++ return platform_driver_register(&rpm_smd_clk_driver); ++} ++core_initcall(rpm_smd_clk_init); ++ ++static void __exit rpm_smd_clk_exit(void) ++{ ++ platform_driver_unregister(&rpm_smd_clk_driver); ++} ++module_exit(rpm_smd_clk_exit); ++ ++MODULE_DESCRIPTION("Qualcomm RPM over SMD Clock Controller Driver"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:qcom-clk-smd-rpm"); +--- /dev/null ++++ b/include/dt-bindings/clock/qcom,rpmcc.h +@@ -0,0 +1,45 @@ ++/* ++ * Copyright 2015 Linaro Limited ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#ifndef _DT_BINDINGS_CLK_MSM_RPMCC_H ++#define _DT_BINDINGS_CLK_MSM_RPMCC_H ++ ++/* msm8916 */ ++#define RPM_SMD_XO_CLK_SRC 0 ++#define RPM_SMD_XO_A_CLK_SRC 1 ++#define RPM_SMD_PCNOC_CLK 2 ++#define RPM_SMD_PCNOC_A_CLK 3 ++#define RPM_SMD_SNOC_CLK 4 ++#define RPM_SMD_SNOC_A_CLK 5 ++#define RPM_SMD_BIMC_CLK 6 ++#define RPM_SMD_BIMC_A_CLK 7 ++#define RPM_SMD_QDSS_CLK 8 ++#define RPM_SMD_QDSS_A_CLK 9 ++#define RPM_SMD_BB_CLK1 10 ++#define RPM_SMD_BB_CLK1_A 11 ++#define RPM_SMD_BB_CLK2 12 ++#define RPM_SMD_BB_CLK2_A 13 ++#define RPM_SMD_RF_CLK1 14 ++#define RPM_SMD_RF_CLK1_A 15 ++#define RPM_SMD_RF_CLK2 16 ++#define RPM_SMD_RF_CLK2_A 17 ++#define RPM_SMD_BB_CLK1_PIN 18 ++#define RPM_SMD_BB_CLK1_A_PIN 19 ++#define RPM_SMD_BB_CLK2_PIN 20 ++#define RPM_SMD_BB_CLK2_A_PIN 21 ++#define RPM_SMD_RF_CLK1_PIN 22 ++#define RPM_SMD_RF_CLK1_A_PIN 23 ++#define RPM_SMD_RF_CLK2_PIN 24 ++#define RPM_SMD_RF_CLK2_A_PIN 25 ++ ++#endif diff --git a/target/linux/ipq806x/patches-4.9/0028-clk-qcom-Add-support-for-RPM-Clocks.patch b/target/linux/ipq806x/patches-4.9/0028-clk-qcom-Add-support-for-RPM-Clocks.patch new file mode 100644 index 0000000000..72b392dc1a --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0028-clk-qcom-Add-support-for-RPM-Clocks.patch @@ -0,0 +1,587 @@ +From 21e7116c9d639f3283d4cec286fed1e703832b43 Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Wed, 2 Nov 2016 17:56:57 +0200 +Subject: [PATCH 28/69] clk: qcom: Add support for RPM Clocks + +This adds initial support for clocks controlled by the Resource +Power Manager (RPM) processor on some Qualcomm SoCs, which use +the qcom_rpm driver to communicate with RPM. +Such platforms are apq8064 and msm8960. + +Signed-off-by: Georgi Djakov +Acked-by: Rob Herring +Signed-off-by: Stephen Boyd +--- + .../devicetree/bindings/clock/qcom,rpmcc.txt | 1 + + drivers/clk/qcom/Kconfig | 13 + + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/clk-rpm.c | 489 +++++++++++++++++++++ + include/dt-bindings/clock/qcom,rpmcc.h | 24 + + 5 files changed, 528 insertions(+) + create mode 100644 drivers/clk/qcom/clk-rpm.c + +--- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt ++++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt +@@ -11,6 +11,7 @@ Required properties : + compatible "qcom,rpmcc" should be also included. + + "qcom,rpmcc-msm8916", "qcom,rpmcc" ++ "qcom,rpmcc-apq8064", "qcom,rpmcc" + + - #clock-cells : shall contain 1 + +--- a/drivers/clk/qcom/Kconfig ++++ b/drivers/clk/qcom/Kconfig +@@ -12,6 +12,19 @@ config COMMON_CLK_QCOM + select REGMAP_MMIO + select RESET_CONTROLLER + ++config QCOM_CLK_RPM ++ tristate "RPM based Clock Controller" ++ depends on COMMON_CLK_QCOM && MFD_QCOM_RPM ++ select QCOM_RPMCC ++ help ++ The RPM (Resource Power Manager) is a dedicated hardware engine for ++ managing the shared SoC resources in order to keep the lowest power ++ profile. It communicates with other hardware subsystems via shared ++ memory and accepts clock requests, aggregates the requests and turns ++ the clocks on/off or scales them on demand. ++ Say Y if you want to support the clocks exposed by the RPM on ++ platforms such as ipq806x, msm8660, msm8960 etc. ++ + config QCOM_CLK_SMD_RPM + tristate "RPM over SMD based Clock Controller" + depends on COMMON_CLK_QCOM && QCOM_SMD_RPM +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -29,4 +29,5 @@ obj-$(CONFIG_MSM_LCC_8960) += lcc-msm896 + obj-$(CONFIG_MSM_MMCC_8960) += mmcc-msm8960.o + obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8974.o + obj-$(CONFIG_MSM_MMCC_8996) += mmcc-msm8996.o ++obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o + obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o +--- /dev/null ++++ b/drivers/clk/qcom/clk-rpm.c +@@ -0,0 +1,489 @@ ++/* ++ * Copyright (c) 2016, Linaro Limited ++ * Copyright (c) 2014, The Linux Foundation. All rights reserved. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++ ++#define QCOM_RPM_MISC_CLK_TYPE 0x306b6c63 ++#define QCOM_RPM_SCALING_ENABLE_ID 0x2 ++ ++#define DEFINE_CLK_RPM(_platform, _name, _active, r_id) \ ++ static struct clk_rpm _platform##_##_active; \ ++ static struct clk_rpm _platform##_##_name = { \ ++ .rpm_clk_id = (r_id), \ ++ .peer = &_platform##_##_active, \ ++ .rate = INT_MAX, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_ops, \ ++ .name = #_name, \ ++ .parent_names = (const char *[]){ "pxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ }; \ ++ static struct clk_rpm _platform##_##_active = { \ ++ .rpm_clk_id = (r_id), \ ++ .peer = &_platform##_##_name, \ ++ .active_only = true, \ ++ .rate = INT_MAX, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_ops, \ ++ .name = #_active, \ ++ .parent_names = (const char *[]){ "pxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ } ++ ++#define DEFINE_CLK_RPM_PXO_BRANCH(_platform, _name, _active, r_id, r) \ ++ static struct clk_rpm _platform##_##_active; \ ++ static struct clk_rpm _platform##_##_name = { \ ++ .rpm_clk_id = (r_id), \ ++ .active_only = true, \ ++ .peer = &_platform##_##_active, \ ++ .rate = (r), \ ++ .branch = true, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_branch_ops, \ ++ .name = #_name, \ ++ .parent_names = (const char *[]){ "pxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ }; \ ++ static struct clk_rpm _platform##_##_active = { \ ++ .rpm_clk_id = (r_id), \ ++ .peer = &_platform##_##_name, \ ++ .rate = (r), \ ++ .branch = true, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_branch_ops, \ ++ .name = #_active, \ ++ .parent_names = (const char *[]){ "pxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ } ++ ++#define DEFINE_CLK_RPM_CXO_BRANCH(_platform, _name, _active, r_id, r) \ ++ static struct clk_rpm _platform##_##_active; \ ++ static struct clk_rpm _platform##_##_name = { \ ++ .rpm_clk_id = (r_id), \ ++ .peer = &_platform##_##_active, \ ++ .rate = (r), \ ++ .branch = true, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_branch_ops, \ ++ .name = #_name, \ ++ .parent_names = (const char *[]){ "cxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ }; \ ++ static struct clk_rpm _platform##_##_active = { \ ++ .rpm_clk_id = (r_id), \ ++ .active_only = true, \ ++ .peer = &_platform##_##_name, \ ++ .rate = (r), \ ++ .branch = true, \ ++ .hw.init = &(struct clk_init_data){ \ ++ .ops = &clk_rpm_branch_ops, \ ++ .name = #_active, \ ++ .parent_names = (const char *[]){ "cxo_board" }, \ ++ .num_parents = 1, \ ++ }, \ ++ } ++ ++#define to_clk_rpm(_hw) container_of(_hw, struct clk_rpm, hw) ++ ++struct clk_rpm { ++ const int rpm_clk_id; ++ const bool active_only; ++ unsigned long rate; ++ bool enabled; ++ bool branch; ++ struct clk_rpm *peer; ++ struct clk_hw hw; ++ struct qcom_rpm *rpm; ++}; ++ ++struct rpm_cc { ++ struct qcom_rpm *rpm; ++ struct clk_hw_onecell_data data; ++ struct clk_hw *hws[]; ++}; ++ ++struct rpm_clk_desc { ++ struct clk_rpm **clks; ++ size_t num_clks; ++}; ++ ++static DEFINE_MUTEX(rpm_clk_lock); ++ ++static int clk_rpm_handoff(struct clk_rpm *r) ++{ ++ int ret; ++ u32 value = INT_MAX; ++ ++ ret = qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE, ++ r->rpm_clk_id, &value, 1); ++ if (ret) ++ return ret; ++ ret = qcom_rpm_write(r->rpm, QCOM_RPM_SLEEP_STATE, ++ r->rpm_clk_id, &value, 1); ++ if (ret) ++ return ret; ++ ++ return 0; ++} ++ ++static int clk_rpm_set_rate_active(struct clk_rpm *r, unsigned long rate) ++{ ++ u32 value = DIV_ROUND_UP(rate, 1000); /* to kHz */ ++ ++ return qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE, ++ r->rpm_clk_id, &value, 1); ++} ++ ++static int clk_rpm_set_rate_sleep(struct clk_rpm *r, unsigned long rate) ++{ ++ u32 value = DIV_ROUND_UP(rate, 1000); /* to kHz */ ++ ++ return qcom_rpm_write(r->rpm, QCOM_RPM_SLEEP_STATE, ++ r->rpm_clk_id, &value, 1); ++} ++ ++static void to_active_sleep(struct clk_rpm *r, unsigned long rate, ++ unsigned long *active, unsigned long *sleep) ++{ ++ *active = rate; ++ ++ /* ++ * Active-only clocks don't care what the rate is during sleep. So, ++ * they vote for zero. ++ */ ++ if (r->active_only) ++ *sleep = 0; ++ else ++ *sleep = *active; ++} ++ ++static int clk_rpm_prepare(struct clk_hw *hw) ++{ ++ struct clk_rpm *r = to_clk_rpm(hw); ++ struct clk_rpm *peer = r->peer; ++ unsigned long this_rate = 0, this_sleep_rate = 0; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ unsigned long active_rate, sleep_rate; ++ int ret = 0; ++ ++ mutex_lock(&rpm_clk_lock); ++ ++ /* Don't send requests to the RPM if the rate has not been set. */ ++ if (!r->rate) ++ goto out; ++ ++ to_active_sleep(r, r->rate, &this_rate, &this_sleep_rate); ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, ++ &peer_rate, &peer_sleep_rate); ++ ++ active_rate = max(this_rate, peer_rate); ++ ++ if (r->branch) ++ active_rate = !!active_rate; ++ ++ ret = clk_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = max(this_sleep_rate, peer_sleep_rate); ++ if (r->branch) ++ sleep_rate = !!sleep_rate; ++ ++ ret = clk_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ /* Undo the active set vote and restore it */ ++ ret = clk_rpm_set_rate_active(r, peer_rate); ++ ++out: ++ if (!ret) ++ r->enabled = true; ++ ++ mutex_unlock(&rpm_clk_lock); ++ ++ return ret; ++} ++ ++static void clk_rpm_unprepare(struct clk_hw *hw) ++{ ++ struct clk_rpm *r = to_clk_rpm(hw); ++ struct clk_rpm *peer = r->peer; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ unsigned long active_rate, sleep_rate; ++ int ret; ++ ++ mutex_lock(&rpm_clk_lock); ++ ++ if (!r->rate) ++ goto out; ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, &peer_rate, ++ &peer_sleep_rate); ++ ++ active_rate = r->branch ? !!peer_rate : peer_rate; ++ ret = clk_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = r->branch ? !!peer_sleep_rate : peer_sleep_rate; ++ ret = clk_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ goto out; ++ ++ r->enabled = false; ++ ++out: ++ mutex_unlock(&rpm_clk_lock); ++} ++ ++static int clk_rpm_set_rate(struct clk_hw *hw, ++ unsigned long rate, unsigned long parent_rate) ++{ ++ struct clk_rpm *r = to_clk_rpm(hw); ++ struct clk_rpm *peer = r->peer; ++ unsigned long active_rate, sleep_rate; ++ unsigned long this_rate = 0, this_sleep_rate = 0; ++ unsigned long peer_rate = 0, peer_sleep_rate = 0; ++ int ret = 0; ++ ++ mutex_lock(&rpm_clk_lock); ++ ++ if (!r->enabled) ++ goto out; ++ ++ to_active_sleep(r, rate, &this_rate, &this_sleep_rate); ++ ++ /* Take peer clock's rate into account only if it's enabled. */ ++ if (peer->enabled) ++ to_active_sleep(peer, peer->rate, ++ &peer_rate, &peer_sleep_rate); ++ ++ active_rate = max(this_rate, peer_rate); ++ ret = clk_rpm_set_rate_active(r, active_rate); ++ if (ret) ++ goto out; ++ ++ sleep_rate = max(this_sleep_rate, peer_sleep_rate); ++ ret = clk_rpm_set_rate_sleep(r, sleep_rate); ++ if (ret) ++ goto out; ++ ++ r->rate = rate; ++ ++out: ++ mutex_unlock(&rpm_clk_lock); ++ ++ return ret; ++} ++ ++static long clk_rpm_round_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long *parent_rate) ++{ ++ /* ++ * RPM handles rate rounding and we don't have a way to ++ * know what the rate will be, so just return whatever ++ * rate is requested. ++ */ ++ return rate; ++} ++ ++static unsigned long clk_rpm_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct clk_rpm *r = to_clk_rpm(hw); ++ ++ /* ++ * RPM handles rate rounding and we don't have a way to ++ * know what the rate will be, so just return whatever ++ * rate was set. ++ */ ++ return r->rate; ++} ++ ++static const struct clk_ops clk_rpm_ops = { ++ .prepare = clk_rpm_prepare, ++ .unprepare = clk_rpm_unprepare, ++ .set_rate = clk_rpm_set_rate, ++ .round_rate = clk_rpm_round_rate, ++ .recalc_rate = clk_rpm_recalc_rate, ++}; ++ ++static const struct clk_ops clk_rpm_branch_ops = { ++ .prepare = clk_rpm_prepare, ++ .unprepare = clk_rpm_unprepare, ++ .round_rate = clk_rpm_round_rate, ++ .recalc_rate = clk_rpm_recalc_rate, ++}; ++ ++/* apq8064 */ ++DEFINE_CLK_RPM(apq8064, afab_clk, afab_a_clk, QCOM_RPM_APPS_FABRIC_CLK); ++DEFINE_CLK_RPM(apq8064, cfpb_clk, cfpb_a_clk, QCOM_RPM_CFPB_CLK); ++DEFINE_CLK_RPM(apq8064, daytona_clk, daytona_a_clk, QCOM_RPM_DAYTONA_FABRIC_CLK); ++DEFINE_CLK_RPM(apq8064, ebi1_clk, ebi1_a_clk, QCOM_RPM_EBI1_CLK); ++DEFINE_CLK_RPM(apq8064, mmfab_clk, mmfab_a_clk, QCOM_RPM_MM_FABRIC_CLK); ++DEFINE_CLK_RPM(apq8064, mmfpb_clk, mmfpb_a_clk, QCOM_RPM_MMFPB_CLK); ++DEFINE_CLK_RPM(apq8064, sfab_clk, sfab_a_clk, QCOM_RPM_SYS_FABRIC_CLK); ++DEFINE_CLK_RPM(apq8064, sfpb_clk, sfpb_a_clk, QCOM_RPM_SFPB_CLK); ++DEFINE_CLK_RPM(apq8064, qdss_clk, qdss_a_clk, QCOM_RPM_QDSS_CLK); ++ ++static struct clk_rpm *apq8064_clks[] = { ++ [RPM_APPS_FABRIC_CLK] = &apq8064_afab_clk, ++ [RPM_APPS_FABRIC_A_CLK] = &apq8064_afab_a_clk, ++ [RPM_CFPB_CLK] = &apq8064_cfpb_clk, ++ [RPM_CFPB_A_CLK] = &apq8064_cfpb_a_clk, ++ [RPM_DAYTONA_FABRIC_CLK] = &apq8064_daytona_clk, ++ [RPM_DAYTONA_FABRIC_A_CLK] = &apq8064_daytona_a_clk, ++ [RPM_EBI1_CLK] = &apq8064_ebi1_clk, ++ [RPM_EBI1_A_CLK] = &apq8064_ebi1_a_clk, ++ [RPM_MM_FABRIC_CLK] = &apq8064_mmfab_clk, ++ [RPM_MM_FABRIC_A_CLK] = &apq8064_mmfab_a_clk, ++ [RPM_MMFPB_CLK] = &apq8064_mmfpb_clk, ++ [RPM_MMFPB_A_CLK] = &apq8064_mmfpb_a_clk, ++ [RPM_SYS_FABRIC_CLK] = &apq8064_sfab_clk, ++ [RPM_SYS_FABRIC_A_CLK] = &apq8064_sfab_a_clk, ++ [RPM_SFPB_CLK] = &apq8064_sfpb_clk, ++ [RPM_SFPB_A_CLK] = &apq8064_sfpb_a_clk, ++ [RPM_QDSS_CLK] = &apq8064_qdss_clk, ++ [RPM_QDSS_A_CLK] = &apq8064_qdss_a_clk, ++}; ++ ++static const struct rpm_clk_desc rpm_clk_apq8064 = { ++ .clks = apq8064_clks, ++ .num_clks = ARRAY_SIZE(apq8064_clks), ++}; ++ ++static const struct of_device_id rpm_clk_match_table[] = { ++ { .compatible = "qcom,rpmcc-apq8064", .data = &rpm_clk_apq8064 }, ++ { } ++}; ++MODULE_DEVICE_TABLE(of, rpm_clk_match_table); ++ ++static int rpm_clk_probe(struct platform_device *pdev) ++{ ++ struct clk_hw **hws; ++ struct rpm_cc *rcc; ++ struct clk_hw_onecell_data *data; ++ int ret; ++ size_t num_clks, i; ++ struct qcom_rpm *rpm; ++ struct clk_rpm **rpm_clks; ++ const struct rpm_clk_desc *desc; ++ ++ rpm = dev_get_drvdata(pdev->dev.parent); ++ if (!rpm) { ++ dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n"); ++ return -ENODEV; ++ } ++ ++ desc = of_device_get_match_data(&pdev->dev); ++ if (!desc) ++ return -EINVAL; ++ ++ rpm_clks = desc->clks; ++ num_clks = desc->num_clks; ++ ++ rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc) + sizeof(*hws) * num_clks, ++ GFP_KERNEL); ++ if (!rcc) ++ return -ENOMEM; ++ ++ hws = rcc->hws; ++ data = &rcc->data; ++ data->num = num_clks; ++ ++ for (i = 0; i < num_clks; i++) { ++ if (!rpm_clks[i]) ++ continue; ++ ++ rpm_clks[i]->rpm = rpm; ++ ++ ret = clk_rpm_handoff(rpm_clks[i]); ++ if (ret) ++ goto err; ++ } ++ ++ for (i = 0; i < num_clks; i++) { ++ if (!rpm_clks[i]) { ++ data->hws[i] = ERR_PTR(-ENOENT); ++ continue; ++ } ++ ++ ret = devm_clk_hw_register(&pdev->dev, &rpm_clks[i]->hw); ++ if (ret) ++ goto err; ++ } ++ ++ ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, ++ data); ++ if (ret) ++ goto err; ++ ++ return 0; ++err: ++ dev_err(&pdev->dev, "Error registering RPM Clock driver (%d)\n", ret); ++ return ret; ++} ++ ++static int rpm_clk_remove(struct platform_device *pdev) ++{ ++ of_clk_del_provider(pdev->dev.of_node); ++ return 0; ++} ++ ++static struct platform_driver rpm_clk_driver = { ++ .driver = { ++ .name = "qcom-clk-rpm", ++ .of_match_table = rpm_clk_match_table, ++ }, ++ .probe = rpm_clk_probe, ++ .remove = rpm_clk_remove, ++}; ++ ++static int __init rpm_clk_init(void) ++{ ++ return platform_driver_register(&rpm_clk_driver); ++} ++core_initcall(rpm_clk_init); ++ ++static void __exit rpm_clk_exit(void) ++{ ++ platform_driver_unregister(&rpm_clk_driver); ++} ++module_exit(rpm_clk_exit); ++ ++MODULE_DESCRIPTION("Qualcomm RPM Clock Controller Driver"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:qcom-clk-rpm"); +--- a/include/dt-bindings/clock/qcom,rpmcc.h ++++ b/include/dt-bindings/clock/qcom,rpmcc.h +@@ -14,6 +14,30 @@ + #ifndef _DT_BINDINGS_CLK_MSM_RPMCC_H + #define _DT_BINDINGS_CLK_MSM_RPMCC_H + ++/* apq8064 */ ++#define RPM_PXO_CLK 0 ++#define RPM_PXO_A_CLK 1 ++#define RPM_CXO_CLK 2 ++#define RPM_CXO_A_CLK 3 ++#define RPM_APPS_FABRIC_CLK 4 ++#define RPM_APPS_FABRIC_A_CLK 5 ++#define RPM_CFPB_CLK 6 ++#define RPM_CFPB_A_CLK 7 ++#define RPM_QDSS_CLK 8 ++#define RPM_QDSS_A_CLK 9 ++#define RPM_DAYTONA_FABRIC_CLK 10 ++#define RPM_DAYTONA_FABRIC_A_CLK 11 ++#define RPM_EBI1_CLK 12 ++#define RPM_EBI1_A_CLK 13 ++#define RPM_MM_FABRIC_CLK 14 ++#define RPM_MM_FABRIC_A_CLK 15 ++#define RPM_MMFPB_CLK 16 ++#define RPM_MMFPB_A_CLK 17 ++#define RPM_SYS_FABRIC_CLK 18 ++#define RPM_SYS_FABRIC_A_CLK 19 ++#define RPM_SFPB_CLK 20 ++#define RPM_SFPB_A_CLK 21 ++ + /* msm8916 */ + #define RPM_SMD_XO_CLK_SRC 0 + #define RPM_SMD_XO_A_CLK_SRC 1 diff --git a/target/linux/ipq806x/patches-4.9/0028-qcom-ipq4019-add-cpu-operating-points-for-cpufreq-su.patch b/target/linux/ipq806x/patches-4.9/0028-qcom-ipq4019-add-cpu-operating-points-for-cpufreq-su.patch deleted file mode 100644 index c2b0b44168..0000000000 --- a/target/linux/ipq806x/patches-4.9/0028-qcom-ipq4019-add-cpu-operating-points-for-cpufreq-su.patch +++ /dev/null @@ -1,77 +0,0 @@ -From ce6cb947b9535b2d81717925cb6a3bc9f8500f44 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Thu, 17 Mar 2016 15:01:09 -0500 -Subject: [PATCH 28/37] qcom: ipq4019: add cpu operating points for cpufreq - support - -This adds some operating points for cpu frequeny scaling - -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/qcom-ipq4019.dtsi | 34 ++++++++++++++++++++++++++-------- - 1 file changed, 26 insertions(+), 8 deletions(-) - ---- a/arch/arm/boot/dts/qcom-ipq4019.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi -@@ -40,14 +40,7 @@ - reg = <0x0>; - clocks = <&gcc GCC_APPS_CLK_SRC>; - clock-frequency = <0>; -- operating-points = < -- /* kHz uV (fixed) */ -- 48000 1100000 -- 200000 1100000 -- 500000 1100000 -- 666000 1100000 -- >; -- clock-latency = <256000>; -+ operating-points-v2 = <&cpu0_opp_table>; - }; - - cpu@1 { -@@ -59,6 +52,7 @@ - reg = <0x1>; - clocks = <&gcc GCC_APPS_CLK_SRC>; - clock-frequency = <0>; -+ operating-points-v2 = <&cpu0_opp_table>; - }; - - cpu@2 { -@@ -70,6 +64,7 @@ - reg = <0x2>; - clocks = <&gcc GCC_APPS_CLK_SRC>; - clock-frequency = <0>; -+ operating-points-v2 = <&cpu0_opp_table>; - }; - - cpu@3 { -@@ -81,6 +76,29 @@ - reg = <0x3>; - clocks = <&gcc GCC_APPS_CLK_SRC>; - clock-frequency = <0>; -+ operating-points-v2 = <&cpu0_opp_table>; -+ }; -+ }; -+ -+ cpu0_opp_table: opp_table0 { -+ compatible = "operating-points-v2"; -+ opp-shared; -+ -+ opp@48000000 { -+ opp-hz = /bits/ 64 <48000000>; -+ clock-latency-ns = <256000>; -+ }; -+ opp@200000000 { -+ opp-hz = /bits/ 64 <200000000>; -+ clock-latency-ns = <256000>; -+ }; -+ opp@500000000 { -+ opp-hz = /bits/ 64 <500000000>; -+ clock-latency-ns = <256000>; -+ }; -+ opp@666000000 { -+ opp-hz = /bits/ 64 <666000000>; -+ clock-latency-ns = <256000>; - }; - }; - diff --git a/target/linux/ipq806x/patches-4.9/0029-clk-qcom-clk-rpm-Fix-clk_hw-references.patch b/target/linux/ipq806x/patches-4.9/0029-clk-qcom-clk-rpm-Fix-clk_hw-references.patch new file mode 100644 index 0000000000..1b1b558dd7 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0029-clk-qcom-clk-rpm-Fix-clk_hw-references.patch @@ -0,0 +1,94 @@ +From 7028c21deb2c6205bb896cc3719414de3d6d6a6e Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Wed, 23 Nov 2016 16:52:49 +0200 +Subject: [PATCH 29/69] clk: qcom: clk-rpm: Fix clk_hw references + +Fix the clk_hw references to the actual clocks and add a xlate function +to return the hw pointers from the already existing static array. + +Reported-by: Michael Scott +Signed-off-by: Georgi Djakov +Signed-off-by: Stephen Boyd +--- + drivers/clk/qcom/clk-rpm.c | 36 ++++++++++++++++++++++-------------- + 1 file changed, 22 insertions(+), 14 deletions(-) + +--- a/drivers/clk/qcom/clk-rpm.c ++++ b/drivers/clk/qcom/clk-rpm.c +@@ -127,8 +127,8 @@ struct clk_rpm { + + struct rpm_cc { + struct qcom_rpm *rpm; +- struct clk_hw_onecell_data data; +- struct clk_hw *hws[]; ++ struct clk_rpm **clks; ++ size_t num_clks; + }; + + struct rpm_clk_desc { +@@ -391,11 +391,23 @@ static const struct of_device_id rpm_clk + }; + MODULE_DEVICE_TABLE(of, rpm_clk_match_table); + ++static struct clk_hw *qcom_rpm_clk_hw_get(struct of_phandle_args *clkspec, ++ void *data) ++{ ++ struct rpm_cc *rcc = data; ++ unsigned int idx = clkspec->args[0]; ++ ++ if (idx >= rcc->num_clks) { ++ pr_err("%s: invalid index %u\n", __func__, idx); ++ return ERR_PTR(-EINVAL); ++ } ++ ++ return rcc->clks[idx] ? &rcc->clks[idx]->hw : ERR_PTR(-ENOENT); ++} ++ + static int rpm_clk_probe(struct platform_device *pdev) + { +- struct clk_hw **hws; + struct rpm_cc *rcc; +- struct clk_hw_onecell_data *data; + int ret; + size_t num_clks, i; + struct qcom_rpm *rpm; +@@ -415,14 +427,12 @@ static int rpm_clk_probe(struct platform + rpm_clks = desc->clks; + num_clks = desc->num_clks; + +- rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc) + sizeof(*hws) * num_clks, +- GFP_KERNEL); ++ rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc), GFP_KERNEL); + if (!rcc) + return -ENOMEM; + +- hws = rcc->hws; +- data = &rcc->data; +- data->num = num_clks; ++ rcc->clks = rpm_clks; ++ rcc->num_clks = num_clks; + + for (i = 0; i < num_clks; i++) { + if (!rpm_clks[i]) +@@ -436,18 +446,16 @@ static int rpm_clk_probe(struct platform + } + + for (i = 0; i < num_clks; i++) { +- if (!rpm_clks[i]) { +- data->hws[i] = ERR_PTR(-ENOENT); ++ if (!rpm_clks[i]) + continue; +- } + + ret = devm_clk_hw_register(&pdev->dev, &rpm_clks[i]->hw); + if (ret) + goto err; + } + +- ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, +- data); ++ ret = of_clk_add_hw_provider(pdev->dev.of_node, qcom_rpm_clk_hw_get, ++ rcc); + if (ret) + goto err; + diff --git a/target/linux/ipq806x/patches-4.9/0029-qcom-ipq4019-turn-on-DMA-for-i2c.patch b/target/linux/ipq806x/patches-4.9/0029-qcom-ipq4019-turn-on-DMA-for-i2c.patch deleted file mode 100644 index 98dffc9b25..0000000000 --- a/target/linux/ipq806x/patches-4.9/0029-qcom-ipq4019-turn-on-DMA-for-i2c.patch +++ /dev/null @@ -1,23 +0,0 @@ -From f033e344b8a02e98beaf16c1eb188bc175219756 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Mon, 28 Mar 2016 11:16:51 -0500 -Subject: [PATCH 29/37] qcom: ipq4019: turn on DMA for i2c - -These are the required nodes for i2c-qup to use DMA - -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/qcom-ipq4019.dtsi | 2 ++ - 1 file changed, 2 insertions(+) - ---- a/arch/arm/boot/dts/qcom-ipq4019.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi -@@ -179,6 +179,8 @@ - clock-names = "iface", "core"; - #address-cells = <1>; - #size-cells = <0>; -+ dmas = <&blsp_dma 9>, <&blsp_dma 8>; -+ dma-names = "rx", "tx"; - status = "disabled"; - }; - diff --git a/target/linux/ipq806x/patches-4.9/0030-clk-Disable-i2c-device-on-gsbi4.patch b/target/linux/ipq806x/patches-4.9/0030-clk-Disable-i2c-device-on-gsbi4.patch new file mode 100644 index 0000000000..a4fe5480db --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0030-clk-Disable-i2c-device-on-gsbi4.patch @@ -0,0 +1,40 @@ +From 0c974b87829e007dc4fae94e20d488204e20e662 Mon Sep 17 00:00:00 2001 +From: John Crispin +Date: Thu, 9 Mar 2017 08:16:10 +0100 +Subject: [PATCH 30/69] clk: Disable i2c device on gsbi4 + +This patch was not annotated and comes from the v4.4 tree. + +Signed-off-by: John Crispin +--- + drivers/clk/qcom/gcc-ipq806x.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +--- a/drivers/clk/qcom/gcc-ipq806x.c ++++ b/drivers/clk/qcom/gcc-ipq806x.c +@@ -294,7 +294,7 @@ static struct clk_rcg gsbi1_uart_src = { + .parent_names = gcc_pxo_pll8, + .num_parents = 2, + .ops = &clk_rcg_ops, +- .flags = CLK_SET_PARENT_GATE, ++ .flags = CLK_SET_PARENT_GATE | CLK_IGNORE_UNUSED, + }, + }, + }; +@@ -312,7 +312,7 @@ static struct clk_branch gsbi1_uart_clk + }, + .num_parents = 1, + .ops = &clk_branch_ops, +- .flags = CLK_SET_RATE_PARENT, ++ .flags = CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED, + }, + }, + }; +@@ -890,6 +890,7 @@ static struct clk_branch gsbi1_h_clk = { + .hw.init = &(struct clk_init_data){ + .name = "gsbi1_h_clk", + .ops = &clk_branch_ops, +++ .flags = CLK_IGNORE_UNUSED, + }, + }, + }; diff --git a/target/linux/ipq806x/patches-4.9/0030-qcom-ipq4019-use-correct-clock-for-i2c-bus-0.patch b/target/linux/ipq806x/patches-4.9/0030-qcom-ipq4019-use-correct-clock-for-i2c-bus-0.patch deleted file mode 100644 index 7f79dba934..0000000000 --- a/target/linux/ipq806x/patches-4.9/0030-qcom-ipq4019-use-correct-clock-for-i2c-bus-0.patch +++ /dev/null @@ -1,28 +0,0 @@ -From 79f698655871f2eeceb1f9051e60d97bc434f52f Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Fri, 29 Apr 2016 12:48:02 -0500 -Subject: [PATCH 30/37] qcom: ipq4019: use correct clock for i2c bus 0 - -For the record the mapping is as follows: - -QUP0 = SPI QUP1 -QUP1 = SPI QUP2 -QUP2 = I2C QUP1 -QUP3 = I2C QUP2 - -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/qcom-ipq4019.dtsi | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - ---- a/arch/arm/boot/dts/qcom-ipq4019.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi -@@ -175,7 +175,7 @@ - reg = <0x78b7000 0x6000>; - interrupts = ; - clocks = <&gcc GCC_BLSP1_AHB_CLK>, -- <&gcc GCC_BLSP1_QUP2_I2C_APPS_CLK>; -+ <&gcc GCC_BLSP1_QUP1_I2C_APPS_CLK>; - clock-names = "iface", "core"; - #address-cells = <1>; - #size-cells = <0>; diff --git a/target/linux/ipq806x/patches-4.9/0031-mtd-add-SMEM-parser-for-QCOM-platforms.patch b/target/linux/ipq806x/patches-4.9/0031-mtd-add-SMEM-parser-for-QCOM-platforms.patch new file mode 100644 index 0000000000..d956a3b069 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0031-mtd-add-SMEM-parser-for-QCOM-platforms.patch @@ -0,0 +1,275 @@ +From d8eeb4de90e968ba32d956728c866f20752cf2c3 Mon Sep 17 00:00:00 2001 +From: Mathieu Olivari +Date: Thu, 9 Mar 2017 08:18:08 +0100 +Subject: [PATCH 31/69] mtd: add SMEM parser for QCOM platforms + +On QCOM platforms using MTD devices storage (such as IPQ806x), SMEM is +used to store partition layout. This new parser can now be used to read +SMEM and use it to register an MTD layout according to its content. + +Signed-off-by: Mathieu Olivari +Signed-off-by: Ram Chandra Jangir +--- + drivers/mtd/Kconfig | 7 ++ + drivers/mtd/Makefile | 1 + + drivers/mtd/qcom_smem_part.c | 228 +++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 236 insertions(+) + create mode 100644 drivers/mtd/qcom_smem_part.c + +--- a/drivers/mtd/Kconfig ++++ b/drivers/mtd/Kconfig +@@ -190,6 +190,13 @@ config MTD_MYLOADER_PARTS + You will still need the parsing functions to be called by the driver + for your particular device. It won't happen automatically. + ++config MTD_QCOM_SMEM_PARTS ++ tristate "QCOM SMEM partitioning support" ++ depends on QCOM_SMEM ++ help ++ This provides partitions parser for QCOM devices using SMEM ++ such as IPQ806x. ++ + comment "User Modules And Translation Layers" + + # +--- /dev/null ++++ b/drivers/mtd/qcom_smem_part.c +@@ -0,0 +1,228 @@ ++/* ++ * Copyright (c) 2015, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++ ++#include ++#include ++#include ++#include ++ ++#include ++ ++/* Processor/host identifier for the application processor */ ++#define SMEM_HOST_APPS 0 ++ ++/* SMEM items index */ ++#define SMEM_AARM_PARTITION_TABLE 9 ++#define SMEM_BOOT_FLASH_TYPE 421 ++#define SMEM_BOOT_FLASH_BLOCK_SIZE 424 ++ ++/* SMEM Flash types */ ++#define SMEM_FLASH_NAND 2 ++#define SMEM_FLASH_SPI 6 ++ ++#define SMEM_PART_NAME_SZ 16 ++#define SMEM_PARTS_MAX 32 ++ ++struct smem_partition { ++ char name[SMEM_PART_NAME_SZ]; ++ __le32 start; ++ __le32 size; ++ __le32 attr; ++}; ++ ++struct smem_partition_table { ++ u8 magic[8]; ++ __le32 version; ++ __le32 len; ++ struct smem_partition parts[SMEM_PARTS_MAX]; ++}; ++ ++/* SMEM Magic values in partition table */ ++static const u8 SMEM_PTABLE_MAGIC[] = { ++ 0xaa, 0x73, 0xee, 0x55, ++ 0xdb, 0xbd, 0x5e, 0xe3, ++}; ++ ++static int qcom_smem_get_flash_blksz(u64 **smem_blksz) ++{ ++ size_t size; ++ ++ *smem_blksz = qcom_smem_get(SMEM_HOST_APPS, SMEM_BOOT_FLASH_BLOCK_SIZE, ++ &size); ++ ++ if (IS_ERR(*smem_blksz)) { ++ pr_err("Unable to read flash blksz from SMEM\n"); ++ return -ENOENT; ++ } ++ ++ if (size != sizeof(**smem_blksz)) { ++ pr_err("Invalid flash blksz size in SMEM\n"); ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static int qcom_smem_get_flash_type(u64 **smem_flash_type) ++{ ++ size_t size; ++ ++ *smem_flash_type = qcom_smem_get(SMEM_HOST_APPS, SMEM_BOOT_FLASH_TYPE, ++ &size); ++ ++ if (IS_ERR(*smem_flash_type)) { ++ pr_err("Unable to read flash type from SMEM\n"); ++ return -ENOENT; ++ } ++ ++ if (size != sizeof(**smem_flash_type)) { ++ pr_err("Invalid flash type size in SMEM\n"); ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static int qcom_smem_get_flash_partitions(struct smem_partition_table **pparts) ++{ ++ size_t size; ++ ++ *pparts = qcom_smem_get(SMEM_HOST_APPS, SMEM_AARM_PARTITION_TABLE, ++ &size); ++ ++ if (IS_ERR(*pparts)) { ++ pr_err("Unable to read partition table from SMEM\n"); ++ return -ENOENT; ++ } ++ ++ return 0; ++} ++ ++static int of_dev_node_match(struct device *dev, void *data) ++{ ++ return dev->of_node == data; ++} ++ ++static bool is_spi_device(struct device_node *np) ++{ ++ struct device *dev; ++ ++ dev = bus_find_device(&spi_bus_type, NULL, np, of_dev_node_match); ++ if (!dev) ++ return false; ++ ++ put_device(dev); ++ return true; ++} ++ ++static int parse_qcom_smem_partitions(struct mtd_info *master, ++ const struct mtd_partition **pparts, ++ struct mtd_part_parser_data *data) ++{ ++ struct smem_partition_table *smem_parts; ++ u64 *smem_flash_type, *smem_blksz; ++ struct mtd_partition *mtd_parts; ++ struct device_node *of_node = master->dev.of_node; ++ int i, ret; ++ ++ /* ++ * SMEM will only store the partition table of the boot device. ++ * If this is not the boot device, do not return any partition. ++ */ ++ ret = qcom_smem_get_flash_type(&smem_flash_type); ++ if (ret < 0) ++ return ret; ++ ++ if ((*smem_flash_type == SMEM_FLASH_NAND && !mtd_type_is_nand(master)) ++ || (*smem_flash_type == SMEM_FLASH_SPI && !is_spi_device(of_node))) ++ return 0; ++ ++ /* ++ * Just for sanity purpose, make sure the block size in SMEM matches the ++ * block size of the MTD device ++ */ ++ ret = qcom_smem_get_flash_blksz(&smem_blksz); ++ if (ret < 0) ++ return ret; ++ ++ if (*smem_blksz != master->erasesize) { ++ pr_err("SMEM block size differs from MTD block size\n"); ++ return -EINVAL; ++ } ++ ++ /* Get partition pointer from SMEM */ ++ ret = qcom_smem_get_flash_partitions(&smem_parts); ++ if (ret < 0) ++ return ret; ++ ++ if (memcmp(SMEM_PTABLE_MAGIC, smem_parts->magic, ++ sizeof(SMEM_PTABLE_MAGIC))) { ++ pr_err("SMEM partition magic invalid\n"); ++ return -EINVAL; ++ } ++ ++ /* Allocate and populate the mtd structures */ ++ mtd_parts = kcalloc(le32_to_cpu(smem_parts->len), sizeof(*mtd_parts), ++ GFP_KERNEL); ++ if (!mtd_parts) ++ return -ENOMEM; ++ ++ for (i = 0; i < smem_parts->len; i++) { ++ struct smem_partition *s_part = &smem_parts->parts[i]; ++ struct mtd_partition *m_part = &mtd_parts[i]; ++ ++ m_part->name = s_part->name; ++ m_part->size = le32_to_cpu(s_part->size) * (*smem_blksz); ++ m_part->offset = le32_to_cpu(s_part->start) * (*smem_blksz); ++ ++ /* ++ * The last SMEM partition may have its size marked as ++ * something like 0xffffffff, which means "until the end of the ++ * flash device". In this case, truncate it. ++ */ ++ if (m_part->offset + m_part->size > master->size) ++ m_part->size = master->size - m_part->offset; ++ } ++ ++ *pparts = mtd_parts; ++ ++ return smem_parts->len; ++} ++ ++static struct mtd_part_parser qcom_smem_parser = { ++ .owner = THIS_MODULE, ++ .parse_fn = parse_qcom_smem_partitions, ++ .name = "qcom-smem", ++}; ++ ++static int __init qcom_smem_parser_init(void) ++{ ++ register_mtd_parser(&qcom_smem_parser); ++ return 0; ++} ++ ++static void __exit qcom_smem_parser_exit(void) ++{ ++ deregister_mtd_parser(&qcom_smem_parser); ++} ++ ++module_init(qcom_smem_parser_init); ++module_exit(qcom_smem_parser_exit); ++ ++MODULE_LICENSE("GPL"); ++MODULE_AUTHOR("Mathieu Olivari "); ++MODULE_DESCRIPTION("Parsing code for SMEM based partition tables"); +--- a/drivers/mtd/Makefile ++++ b/drivers/mtd/Makefile +@@ -16,6 +16,7 @@ obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o + obj-$(CONFIG_MTD_BCM63XX_PARTS) += bcm63xxpart.o + obj-$(CONFIG_MTD_BCM47XX_PARTS) += bcm47xxpart.o + obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o ++obj-$(CONFIG_MTD_QCOM_SMEM_PARTS) += qcom_smem_part.o + + # 'Users' - code which presents functionality to userspace. + obj-$(CONFIG_MTD_BLKDEVS) += mtd_blkdevs.o diff --git a/target/linux/ipq806x/patches-4.9/0031-qcom-ipq4019-enable-DMA-for-spi.patch b/target/linux/ipq806x/patches-4.9/0031-qcom-ipq4019-enable-DMA-for-spi.patch deleted file mode 100644 index e7156181ae..0000000000 --- a/target/linux/ipq806x/patches-4.9/0031-qcom-ipq4019-enable-DMA-for-spi.patch +++ /dev/null @@ -1,23 +0,0 @@ -From 20249a0d746265a6663208fa768614784553edac Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Mon, 11 Apr 2016 14:49:12 -0500 -Subject: [PATCH 31/37] qcom: ipq4019: enable DMA for spi - -These are the required nodes for spi-qup to use DMA - -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/qcom-ipq4019.dtsi | 2 ++ - 1 file changed, 2 insertions(+) - ---- a/arch/arm/boot/dts/qcom-ipq4019.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi -@@ -167,6 +167,8 @@ - clock-names = "core", "iface"; - #address-cells = <1>; - #size-cells = <0>; -+ dmas = <&blsp_dma 5>, <&blsp_dma 4>; -+ dma-names = "rx", "tx"; - status = "disabled"; - }; - diff --git a/target/linux/ipq806x/patches-4.9/0032-phy-add-qcom-dwc3-phy.patch b/target/linux/ipq806x/patches-4.9/0032-phy-add-qcom-dwc3-phy.patch new file mode 100644 index 0000000000..314631d3c0 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0032-phy-add-qcom-dwc3-phy.patch @@ -0,0 +1,526 @@ +From b9004f4fd23e4c614d71c972f3a9311665480e29 Mon Sep 17 00:00:00 2001 +From: Andy Gross +Date: Thu, 9 Mar 2017 08:19:18 +0100 +Subject: [PATCH 32/69] phy: add qcom dwc3 phy + +Signed-off-by: Andy Gross +--- + drivers/phy/Kconfig | 12 ++ + drivers/phy/Makefile | 1 + + drivers/phy/phy-qcom-dwc3.c | 484 ++++++++++++++++++++++++++++++++++++++++++++ + 3 files changed, 497 insertions(+) + create mode 100644 drivers/phy/phy-qcom-dwc3.c + +--- a/drivers/phy/Kconfig ++++ b/drivers/phy/Kconfig +@@ -489,4 +489,16 @@ config PHY_NS2_PCIE + help + Enable this to support the Broadcom Northstar2 PCIe PHY. + If unsure, say N. ++ ++config PHY_QCOM_DWC3 ++ tristate "QCOM DWC3 USB PHY support" ++ depends on ARCH_QCOM ++ depends on HAS_IOMEM ++ depends on OF ++ select GENERIC_PHY ++ help ++ This option enables support for the Synopsis PHYs present inside the ++ Qualcomm USB3.0 DWC3 controller. This driver supports both HS and SS ++ PHY controllers. ++ + endmenu +--- a/drivers/phy/Makefile ++++ b/drivers/phy/Makefile +@@ -60,3 +60,4 @@ obj-$(CONFIG_PHY_PISTACHIO_USB) += phy- + obj-$(CONFIG_PHY_CYGNUS_PCIE) += phy-bcm-cygnus-pcie.o + obj-$(CONFIG_ARCH_TEGRA) += tegra/ + obj-$(CONFIG_PHY_NS2_PCIE) += phy-bcm-ns2-pcie.o ++obj-$(CONFIG_PHY_QCOM_DWC3) += phy-qcom-dwc3.o +--- /dev/null ++++ b/drivers/phy/phy-qcom-dwc3.c +@@ -0,0 +1,484 @@ ++/* Copyright (c) 2014-2015, Code Aurora Forum. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++* This program is distributed in the hope that it will be useful, ++* but WITHOUT ANY WARRANTY; without even the implied warranty of ++* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++* GNU General Public License for more details. ++*/ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++/** ++ * USB QSCRATCH Hardware registers ++ */ ++#define QSCRATCH_GENERAL_CFG (0x08) ++#define HSUSB_PHY_CTRL_REG (0x10) ++ ++/* PHY_CTRL_REG */ ++#define HSUSB_CTRL_DMSEHV_CLAMP BIT(24) ++#define HSUSB_CTRL_USB2_SUSPEND BIT(23) ++#define HSUSB_CTRL_UTMI_CLK_EN BIT(21) ++#define HSUSB_CTRL_UTMI_OTG_VBUS_VALID BIT(20) ++#define HSUSB_CTRL_USE_CLKCORE BIT(18) ++#define HSUSB_CTRL_DPSEHV_CLAMP BIT(17) ++#define HSUSB_CTRL_COMMONONN BIT(11) ++#define HSUSB_CTRL_ID_HV_CLAMP BIT(9) ++#define HSUSB_CTRL_OTGSESSVLD_CLAMP BIT(8) ++#define HSUSB_CTRL_CLAMP_EN BIT(7) ++#define HSUSB_CTRL_RETENABLEN BIT(1) ++#define HSUSB_CTRL_POR BIT(0) ++ ++/* QSCRATCH_GENERAL_CFG */ ++#define HSUSB_GCFG_XHCI_REV BIT(2) ++ ++/** ++ * USB QSCRATCH Hardware registers ++ */ ++#define SSUSB_PHY_CTRL_REG (0x00) ++#define SSUSB_PHY_PARAM_CTRL_1 (0x04) ++#define SSUSB_PHY_PARAM_CTRL_2 (0x08) ++#define CR_PROTOCOL_DATA_IN_REG (0x0c) ++#define CR_PROTOCOL_DATA_OUT_REG (0x10) ++#define CR_PROTOCOL_CAP_ADDR_REG (0x14) ++#define CR_PROTOCOL_CAP_DATA_REG (0x18) ++#define CR_PROTOCOL_READ_REG (0x1c) ++#define CR_PROTOCOL_WRITE_REG (0x20) ++ ++/* PHY_CTRL_REG */ ++#define SSUSB_CTRL_REF_USE_PAD BIT(28) ++#define SSUSB_CTRL_TEST_POWERDOWN BIT(27) ++#define SSUSB_CTRL_LANE0_PWR_PRESENT BIT(24) ++#define SSUSB_CTRL_SS_PHY_EN BIT(8) ++#define SSUSB_CTRL_SS_PHY_RESET BIT(7) ++ ++/* SSPHY control registers */ ++#define SSPHY_CTRL_RX_OVRD_IN_HI(lane) (0x1006 + 0x100 * lane) ++#define SSPHY_CTRL_TX_OVRD_DRV_LO(lane) (0x1002 + 0x100 * lane) ++ ++/* RX OVRD IN HI bits */ ++#define RX_OVRD_IN_HI_RX_RESET_OVRD BIT(13) ++#define RX_OVRD_IN_HI_RX_RX_RESET BIT(12) ++#define RX_OVRD_IN_HI_RX_EQ_OVRD BIT(11) ++#define RX_OVRD_IN_HI_RX_EQ_MASK 0x0700 ++#define RX_OVRD_IN_HI_RX_EQ_SHIFT 8 ++#define RX_OVRD_IN_HI_RX_EQ_EN_OVRD BIT(7) ++#define RX_OVRD_IN_HI_RX_EQ_EN BIT(6) ++#define RX_OVRD_IN_HI_RX_LOS_FILTER_OVRD BIT(5) ++#define RX_OVRD_IN_HI_RX_LOS_FILTER_MASK 0x0018 ++#define RX_OVRD_IN_HI_RX_RATE_OVRD BIT(2) ++#define RX_OVRD_IN_HI_RX_RATE_MASK 0x0003 ++ ++/* TX OVRD DRV LO register bits */ ++#define TX_OVRD_DRV_LO_AMPLITUDE_MASK 0x007F ++#define TX_OVRD_DRV_LO_PREEMPH_MASK 0x3F80 ++#define TX_OVRD_DRV_LO_PREEMPH_SHIFT 7 ++#define TX_OVRD_DRV_LO_EN BIT(14) ++ ++/* SS CAP register bits */ ++#define SS_CR_CAP_ADDR_REG BIT(0) ++#define SS_CR_CAP_DATA_REG BIT(0) ++#define SS_CR_READ_REG BIT(0) ++#define SS_CR_WRITE_REG BIT(0) ++ ++struct qcom_dwc3_usb_phy { ++ void __iomem *base; ++ struct device *dev; ++ struct clk *xo_clk; ++ struct clk *ref_clk; ++}; ++ ++struct qcom_dwc3_phy_drvdata { ++ struct phy_ops ops; ++ u32 clk_rate; ++}; ++ ++/** ++ * Write register and read back masked value to confirm it is written ++ * ++ * @base - QCOM DWC3 PHY base virtual address. ++ * @offset - register offset. ++ * @mask - register bitmask specifying what should be updated ++ * @val - value to write. ++ */ ++static inline void qcom_dwc3_phy_write_readback( ++ struct qcom_dwc3_usb_phy *phy_dwc3, u32 offset, ++ const u32 mask, u32 val) ++{ ++ u32 write_val, tmp = readl(phy_dwc3->base + offset); ++ ++ tmp &= ~mask; /* retain other bits */ ++ write_val = tmp | val; ++ ++ writel(write_val, phy_dwc3->base + offset); ++ ++ /* Read back to see if val was written */ ++ tmp = readl(phy_dwc3->base + offset); ++ tmp &= mask; /* clear other bits */ ++ ++ if (tmp != val) ++ dev_err(phy_dwc3->dev, "write: %x to QSCRATCH: %x FAILED\n", ++ val, offset); ++} ++ ++static int wait_for_latch(void __iomem *addr) ++{ ++ u32 retry = 10; ++ ++ while (true) { ++ if (!readl(addr)) ++ break; ++ ++ if (--retry == 0) ++ return -ETIMEDOUT; ++ ++ usleep_range(10, 20); ++ } ++ ++ return 0; ++} ++ ++/** ++ * Write SSPHY register ++ * ++ * @base - QCOM DWC3 PHY base virtual address. ++ * @addr - SSPHY address to write. ++ * @val - value to write. ++ */ ++static int qcom_dwc3_ss_write_phycreg(struct qcom_dwc3_usb_phy *phy_dwc3, ++ u32 addr, u32 val) ++{ ++ int ret; ++ ++ writel(addr, phy_dwc3->base + CR_PROTOCOL_DATA_IN_REG); ++ writel(SS_CR_CAP_ADDR_REG, phy_dwc3->base + CR_PROTOCOL_CAP_ADDR_REG); ++ ++ ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_CAP_ADDR_REG); ++ if (ret) ++ goto err_wait; ++ ++ writel(val, phy_dwc3->base + CR_PROTOCOL_DATA_IN_REG); ++ writel(SS_CR_CAP_DATA_REG, phy_dwc3->base + CR_PROTOCOL_CAP_DATA_REG); ++ ++ ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_CAP_DATA_REG); ++ if (ret) ++ goto err_wait; ++ ++ writel(SS_CR_WRITE_REG, phy_dwc3->base + CR_PROTOCOL_WRITE_REG); ++ ++ ret = wait_for_latch(phy_dwc3->base + CR_PROTOCOL_WRITE_REG); ++ ++err_wait: ++ if (ret) ++ dev_err(phy_dwc3->dev, "timeout waiting for latch\n"); ++ return ret; ++} ++ ++/** ++ * Read SSPHY register. ++ * ++ * @base - QCOM DWC3 PHY base virtual address. ++ * @addr - SSPHY address to read. ++ */ ++static int qcom_dwc3_ss_read_phycreg(void __iomem *base, u32 addr, u32 *val) ++{ ++ int ret; ++ ++ writel(addr, base + CR_PROTOCOL_DATA_IN_REG); ++ writel(SS_CR_CAP_ADDR_REG, base + CR_PROTOCOL_CAP_ADDR_REG); ++ ++ ret = wait_for_latch(base + CR_PROTOCOL_CAP_ADDR_REG); ++ if (ret) ++ goto err_wait; ++ ++ /* ++ * Due to hardware bug, first read of SSPHY register might be ++ * incorrect. Hence as workaround, SW should perform SSPHY register ++ * read twice, but use only second read and ignore first read. ++ */ ++ writel(SS_CR_READ_REG, base + CR_PROTOCOL_READ_REG); ++ ++ ret = wait_for_latch(base + CR_PROTOCOL_READ_REG); ++ if (ret) ++ goto err_wait; ++ ++ /* throwaway read */ ++ readl(base + CR_PROTOCOL_DATA_OUT_REG); ++ ++ writel(SS_CR_READ_REG, base + CR_PROTOCOL_READ_REG); ++ ++ ret = wait_for_latch(base + CR_PROTOCOL_READ_REG); ++ if (ret) ++ goto err_wait; ++ ++ *val = readl(base + CR_PROTOCOL_DATA_OUT_REG); ++ ++err_wait: ++ return ret; ++} ++ ++static int qcom_dwc3_phy_power_on(struct phy *phy) ++{ ++ int ret; ++ struct qcom_dwc3_usb_phy *phy_dwc3 = phy_get_drvdata(phy); ++ ++ ret = clk_prepare_enable(phy_dwc3->xo_clk); ++ if (ret) ++ return ret; ++ ++ ret = clk_prepare_enable(phy_dwc3->ref_clk); ++ if (ret) ++ clk_disable_unprepare(phy_dwc3->xo_clk); ++ ++ return ret; ++} ++ ++static int qcom_dwc3_phy_power_off(struct phy *phy) ++{ ++ struct qcom_dwc3_usb_phy *phy_dwc3 = phy_get_drvdata(phy); ++ ++ clk_disable_unprepare(phy_dwc3->ref_clk); ++ clk_disable_unprepare(phy_dwc3->xo_clk); ++ ++ return 0; ++} ++ ++static int qcom_dwc3_hs_phy_init(struct phy *phy) ++{ ++ struct qcom_dwc3_usb_phy *phy_dwc3 = phy_get_drvdata(phy); ++ u32 val; ++ ++ /* ++ * HSPHY Initialization: Enable UTMI clock, select 19.2MHz fsel ++ * enable clamping, and disable RETENTION (power-on default is ENABLED) ++ */ ++ val = HSUSB_CTRL_DPSEHV_CLAMP | HSUSB_CTRL_DMSEHV_CLAMP | ++ HSUSB_CTRL_RETENABLEN | HSUSB_CTRL_COMMONONN | ++ HSUSB_CTRL_OTGSESSVLD_CLAMP | HSUSB_CTRL_ID_HV_CLAMP | ++ HSUSB_CTRL_DPSEHV_CLAMP | HSUSB_CTRL_UTMI_OTG_VBUS_VALID | ++ HSUSB_CTRL_UTMI_CLK_EN | HSUSB_CTRL_CLAMP_EN | 0x70; ++ ++ /* use core clock if external reference is not present */ ++ if (!phy_dwc3->xo_clk) ++ val |= HSUSB_CTRL_USE_CLKCORE; ++ ++ writel(val, phy_dwc3->base + HSUSB_PHY_CTRL_REG); ++ usleep_range(2000, 2200); ++ ++ /* Disable (bypass) VBUS and ID filters */ ++ writel(HSUSB_GCFG_XHCI_REV, phy_dwc3->base + QSCRATCH_GENERAL_CFG); ++ ++ return 0; ++} ++ ++static int qcom_dwc3_ss_phy_init(struct phy *phy) ++{ ++ struct qcom_dwc3_usb_phy *phy_dwc3 = phy_get_drvdata(phy); ++ int ret; ++ u32 data = 0; ++ ++ /* reset phy */ ++ data = readl(phy_dwc3->base + SSUSB_PHY_CTRL_REG); ++ writel(data | SSUSB_CTRL_SS_PHY_RESET, ++ phy_dwc3->base + SSUSB_PHY_CTRL_REG); ++ usleep_range(2000, 2200); ++ writel(data, phy_dwc3->base + SSUSB_PHY_CTRL_REG); ++ ++ /* clear REF_PAD if we don't have XO clk */ ++ if (!phy_dwc3->xo_clk) ++ data &= ~SSUSB_CTRL_REF_USE_PAD; ++ else ++ data |= SSUSB_CTRL_REF_USE_PAD; ++ ++ writel(data, phy_dwc3->base + SSUSB_PHY_CTRL_REG); ++ ++ /* wait for ref clk to become stable, this can take up to 30ms */ ++ msleep(30); ++ ++ data |= SSUSB_CTRL_SS_PHY_EN | SSUSB_CTRL_LANE0_PWR_PRESENT; ++ writel(data, phy_dwc3->base + SSUSB_PHY_CTRL_REG); ++ ++ /* ++ * Fix RX Equalization setting as follows ++ * LANE0.RX_OVRD_IN_HI. RX_EQ_EN set to 0 ++ * LANE0.RX_OVRD_IN_HI.RX_EQ_EN_OVRD set to 1 ++ * LANE0.RX_OVRD_IN_HI.RX_EQ set to 3 ++ * LANE0.RX_OVRD_IN_HI.RX_EQ_OVRD set to 1 ++ */ ++ ret = qcom_dwc3_ss_read_phycreg(phy_dwc3->base, ++ SSPHY_CTRL_RX_OVRD_IN_HI(0), &data); ++ if (ret) ++ goto err_phy_trans; ++ ++ data &= ~RX_OVRD_IN_HI_RX_EQ_EN; ++ data |= RX_OVRD_IN_HI_RX_EQ_EN_OVRD; ++ data &= ~RX_OVRD_IN_HI_RX_EQ_MASK; ++ data |= 0x3 << RX_OVRD_IN_HI_RX_EQ_SHIFT; ++ data |= RX_OVRD_IN_HI_RX_EQ_OVRD; ++ ret = qcom_dwc3_ss_write_phycreg(phy_dwc3, ++ SSPHY_CTRL_RX_OVRD_IN_HI(0), data); ++ if (ret) ++ goto err_phy_trans; ++ ++ /* ++ * Set EQ and TX launch amplitudes as follows ++ * LANE0.TX_OVRD_DRV_LO.PREEMPH set to 22 ++ * LANE0.TX_OVRD_DRV_LO.AMPLITUDE set to 127 ++ * LANE0.TX_OVRD_DRV_LO.EN set to 1. ++ */ ++ ret = qcom_dwc3_ss_read_phycreg(phy_dwc3->base, ++ SSPHY_CTRL_TX_OVRD_DRV_LO(0), &data); ++ if (ret) ++ goto err_phy_trans; ++ ++ data &= ~TX_OVRD_DRV_LO_PREEMPH_MASK; ++ data |= 0x16 << TX_OVRD_DRV_LO_PREEMPH_SHIFT; ++ data &= ~TX_OVRD_DRV_LO_AMPLITUDE_MASK; ++ data |= 0x7f; ++ data |= TX_OVRD_DRV_LO_EN; ++ ret = qcom_dwc3_ss_write_phycreg(phy_dwc3, ++ SSPHY_CTRL_TX_OVRD_DRV_LO(0), data); ++ if (ret) ++ goto err_phy_trans; ++ ++ /* ++ * Set the QSCRATCH PHY_PARAM_CTRL1 parameters as follows ++ * TX_FULL_SWING [26:20] amplitude to 127 ++ * TX_DEEMPH_3_5DB [13:8] to 22 ++ * LOS_BIAS [2:0] to 0x5 ++ */ ++ qcom_dwc3_phy_write_readback(phy_dwc3, SSUSB_PHY_PARAM_CTRL_1, ++ 0x07f03f07, 0x07f01605); ++ ++err_phy_trans: ++ return ret; ++} ++ ++static int qcom_dwc3_ss_phy_exit(struct phy *phy) ++{ ++ struct qcom_dwc3_usb_phy *phy_dwc3 = phy_get_drvdata(phy); ++ ++ /* Sequence to put SSPHY in low power state: ++ * 1. Clear REF_PHY_EN in PHY_CTRL_REG ++ * 2. Clear REF_USE_PAD in PHY_CTRL_REG ++ * 3. Set TEST_POWERED_DOWN in PHY_CTRL_REG to enable PHY retention ++ */ ++ qcom_dwc3_phy_write_readback(phy_dwc3, SSUSB_PHY_CTRL_REG, ++ SSUSB_CTRL_SS_PHY_EN, 0x0); ++ qcom_dwc3_phy_write_readback(phy_dwc3, SSUSB_PHY_CTRL_REG, ++ SSUSB_CTRL_REF_USE_PAD, 0x0); ++ qcom_dwc3_phy_write_readback(phy_dwc3, SSUSB_PHY_CTRL_REG, ++ 0x0, SSUSB_CTRL_TEST_POWERDOWN); ++ ++ return 0; ++} ++ ++static const struct qcom_dwc3_phy_drvdata qcom_dwc3_hs_drvdata = { ++ .ops = { ++ .init = qcom_dwc3_hs_phy_init, ++ .power_on = qcom_dwc3_phy_power_on, ++ .power_off = qcom_dwc3_phy_power_off, ++ .owner = THIS_MODULE, ++ }, ++ .clk_rate = 60000000, ++}; ++ ++static const struct qcom_dwc3_phy_drvdata qcom_dwc3_ss_drvdata = { ++ .ops = { ++ .init = qcom_dwc3_ss_phy_init, ++ .exit = qcom_dwc3_ss_phy_exit, ++ .power_on = qcom_dwc3_phy_power_on, ++ .power_off = qcom_dwc3_phy_power_off, ++ .owner = THIS_MODULE, ++ }, ++ .clk_rate = 125000000, ++}; ++ ++static const struct of_device_id qcom_dwc3_phy_table[] = { ++ { .compatible = "qcom,dwc3-hs-usb-phy", .data = &qcom_dwc3_hs_drvdata }, ++ { .compatible = "qcom,dwc3-ss-usb-phy", .data = &qcom_dwc3_ss_drvdata }, ++ { /* Sentinel */ } ++}; ++MODULE_DEVICE_TABLE(of, qcom_dwc3_phy_table); ++ ++static int qcom_dwc3_phy_probe(struct platform_device *pdev) ++{ ++ struct qcom_dwc3_usb_phy *phy_dwc3; ++ struct phy_provider *phy_provider; ++ struct phy *generic_phy; ++ struct resource *res; ++ const struct of_device_id *match; ++ const struct qcom_dwc3_phy_drvdata *data; ++ ++ phy_dwc3 = devm_kzalloc(&pdev->dev, sizeof(*phy_dwc3), GFP_KERNEL); ++ if (!phy_dwc3) ++ return -ENOMEM; ++ ++ match = of_match_node(qcom_dwc3_phy_table, pdev->dev.of_node); ++ data = match->data; ++ ++ phy_dwc3->dev = &pdev->dev; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ phy_dwc3->base = devm_ioremap_resource(phy_dwc3->dev, res); ++ if (IS_ERR(phy_dwc3->base)) ++ return PTR_ERR(phy_dwc3->base); ++ ++ phy_dwc3->ref_clk = devm_clk_get(phy_dwc3->dev, "ref"); ++ if (IS_ERR(phy_dwc3->ref_clk)) { ++ dev_dbg(phy_dwc3->dev, "cannot get reference clock\n"); ++ return PTR_ERR(phy_dwc3->ref_clk); ++ } ++ ++ clk_set_rate(phy_dwc3->ref_clk, data->clk_rate); ++ ++ phy_dwc3->xo_clk = devm_clk_get(phy_dwc3->dev, "xo"); ++ if (IS_ERR(phy_dwc3->xo_clk)) { ++ dev_dbg(phy_dwc3->dev, "cannot get TCXO clock\n"); ++ phy_dwc3->xo_clk = NULL; ++ } ++ ++ generic_phy = devm_phy_create(phy_dwc3->dev, pdev->dev.of_node, ++ &data->ops); ++ ++ if (IS_ERR(generic_phy)) ++ return PTR_ERR(generic_phy); ++ ++ phy_set_drvdata(generic_phy, phy_dwc3); ++ platform_set_drvdata(pdev, phy_dwc3); ++ ++ phy_provider = devm_of_phy_provider_register(phy_dwc3->dev, ++ of_phy_simple_xlate); ++ ++ if (IS_ERR(phy_provider)) ++ return PTR_ERR(phy_provider); ++ ++ return 0; ++} ++ ++static struct platform_driver qcom_dwc3_phy_driver = { ++ .probe = qcom_dwc3_phy_probe, ++ .driver = { ++ .name = "qcom-dwc3-usb-phy", ++ .owner = THIS_MODULE, ++ .of_match_table = qcom_dwc3_phy_table, ++ }, ++}; ++ ++module_platform_driver(qcom_dwc3_phy_driver); ++ ++MODULE_ALIAS("platform:phy-qcom-dwc3"); ++MODULE_LICENSE("GPL v2"); ++MODULE_AUTHOR("Andy Gross "); ++MODULE_AUTHOR("Ivan T. Ivanov "); ++MODULE_DESCRIPTION("DesignWare USB3 QCOM PHY driver"); diff --git a/target/linux/ipq806x/patches-4.9/0032-qcom-ipq4019-use-v2-of-the-kpss-bringup-mechanism.patch b/target/linux/ipq806x/patches-4.9/0032-qcom-ipq4019-use-v2-of-the-kpss-bringup-mechanism.patch deleted file mode 100644 index 9263ffd5b8..0000000000 --- a/target/linux/ipq806x/patches-4.9/0032-qcom-ipq4019-use-v2-of-the-kpss-bringup-mechanism.patch +++ /dev/null @@ -1,108 +0,0 @@ -From 4d7fe4171b01cbfc01e4a00f44b3e7f7a8013eb3 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Fri, 8 Apr 2016 15:26:10 -0500 -Subject: [PATCH 32/37] qcom: ipq4019: use v2 of the kpss bringup mechanism - -v1 was the incorrect choice here and sometimes the board would not come -up properly - -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/qcom-ipq4019.dtsi | 32 ++++++++++++++++++++++++-------- - 1 file changed, 24 insertions(+), 8 deletions(-) - ---- a/arch/arm/boot/dts/qcom-ipq4019.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi -@@ -34,7 +34,8 @@ - cpu@0 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; -- enable-method = "qcom,kpss-acc-v1"; -+ enable-method = "qcom,kpss-acc-v2"; -+ next-level-cache = <&L2>; - qcom,acc = <&acc0>; - qcom,saw = <&saw0>; - reg = <0x0>; -@@ -46,7 +47,8 @@ - cpu@1 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; -- enable-method = "qcom,kpss-acc-v1"; -+ enable-method = "qcom,kpss-acc-v2"; -+ next-level-cache = <&L2>; - qcom,acc = <&acc1>; - qcom,saw = <&saw1>; - reg = <0x1>; -@@ -58,7 +60,8 @@ - cpu@2 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; -- enable-method = "qcom,kpss-acc-v1"; -+ enable-method = "qcom,kpss-acc-v2"; -+ next-level-cache = <&L2>; - qcom,acc = <&acc2>; - qcom,saw = <&saw2>; - reg = <0x2>; -@@ -70,7 +73,8 @@ - cpu@3 { - device_type = "cpu"; - compatible = "arm,cortex-a7"; -- enable-method = "qcom,kpss-acc-v1"; -+ enable-method = "qcom,kpss-acc-v2"; -+ next-level-cache = <&L2>; - qcom,acc = <&acc3>; - qcom,saw = <&saw3>; - reg = <0x3>; -@@ -100,6 +104,12 @@ - opp-hz = /bits/ 64 <666000000>; - clock-latency-ns = <256000>; - }; -+ -+ L2: l2-cache { -+ compatible = "qcom,arch-cache"; -+ cache-level = <2>; -+ qcom,saw = <&saw_l2>; -+ }; - }; - - pmu { -@@ -212,22 +222,22 @@ - }; - - acc0: clock-controller@b088000 { -- compatible = "qcom,kpss-acc-v1"; -+ compatible = "qcom,kpss-acc-v2"; - reg = <0x0b088000 0x1000>, <0xb008000 0x1000>; - }; - - acc1: clock-controller@b098000 { -- compatible = "qcom,kpss-acc-v1"; -+ compatible = "qcom,kpss-acc-v2"; - reg = <0x0b098000 0x1000>, <0xb008000 0x1000>; - }; - - acc2: clock-controller@b0a8000 { -- compatible = "qcom,kpss-acc-v1"; -+ compatible = "qcom,kpss-acc-v2"; - reg = <0x0b0a8000 0x1000>, <0xb008000 0x1000>; - }; - - acc3: clock-controller@b0b8000 { -- compatible = "qcom,kpss-acc-v1"; -+ compatible = "qcom,kpss-acc-v2"; - reg = <0x0b0b8000 0x1000>, <0xb008000 0x1000>; - }; - -@@ -255,6 +265,12 @@ - regulator; - }; - -+ saw_l2: regulator@b012000 { -+ compatible = "qcom,saw2"; -+ reg = <0xb012000 0x1000>; -+ regulator; -+ }; -+ - serial@78af000 { - compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm"; - reg = <0x78af000 0x200>; diff --git a/target/linux/ipq806x/patches-4.9/0033-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch b/target/linux/ipq806x/patches-4.9/0033-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch new file mode 100644 index 0000000000..a6c7953aaa --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0033-ARM-qcom-automatically-select-PCI_DOMAINS-if-PCI-is-.patch @@ -0,0 +1,29 @@ +From 48051ece78136e4235a2415a52797db56f8a4478 Mon Sep 17 00:00:00 2001 +From: Mathieu Olivari +Date: Tue, 21 Apr 2015 19:09:07 -0700 +Subject: [PATCH 33/69] ARM: qcom: automatically select PCI_DOMAINS if PCI is + enabled + +If multiple PCIe devices are present in the system, the kernel will +panic at boot time when trying to scan the PCI buses. This happens on +IPQ806x based platforms, which has 3 PCIe ports. + +Enabling this option allows the kernel to assign the pci-domains +according to the device-tree content. This allows multiple PCIe +controllers to coexist in the system. + +Signed-off-by: Mathieu Olivari +--- + arch/arm/mach-qcom/Kconfig | 1 + + 1 file changed, 1 insertion(+) + +--- a/arch/arm/mach-qcom/Kconfig ++++ b/arch/arm/mach-qcom/Kconfig +@@ -6,6 +6,7 @@ menuconfig ARCH_QCOM + select ARM_AMBA + select PINCTRL + select QCOM_SCM if SMP ++ select PCI_DOMAINS if PCI + help + Support for Qualcomm's devicetree based systems. + diff --git a/target/linux/ipq806x/patches-4.9/0033-dts-ipq4019-support-ARMv7-PMU.patch b/target/linux/ipq806x/patches-4.9/0033-dts-ipq4019-support-ARMv7-PMU.patch deleted file mode 100644 index 0ea66d9e4d..0000000000 --- a/target/linux/ipq806x/patches-4.9/0033-dts-ipq4019-support-ARMv7-PMU.patch +++ /dev/null @@ -1,28 +0,0 @@ -From 25ee3761c072037b48246b992c3aec671c77a406 Mon Sep 17 00:00:00 2001 -From: Thomas Pedersen -Date: Wed, 4 May 2016 12:25:41 -0700 -Subject: [PATCH 33/37] dts: ipq4019: support ARMv7 PMU - -Add support for cortex-a7-pmu present on ipq4019 SoCs. - -Signed-off-by: Thomas Pedersen -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/qcom-ipq4019.dtsi | 6 ++++++ - 1 file changed, 6 insertions(+) - ---- a/arch/arm/boot/dts/qcom-ipq4019.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi -@@ -118,6 +118,12 @@ - IRQ_TYPE_LEVEL_HIGH)>; - }; - -+ pmu { -+ compatible = "arm,cortex-a7-pmu"; -+ interrupts = ; -+ }; -+ - clocks { - sleep_clk: sleep_clk { - compatible = "fixed-clock"; diff --git a/target/linux/ipq806x/patches-4.9/0034-ARM-Add-Krait-L2-register-accessor-functions.patch b/target/linux/ipq806x/patches-4.9/0034-ARM-Add-Krait-L2-register-accessor-functions.patch new file mode 100644 index 0000000000..8c69b97cc4 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0034-ARM-Add-Krait-L2-register-accessor-functions.patch @@ -0,0 +1,133 @@ +From 1d6b12f73c98ecf252743936a53242356cc50a34 Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:20 -0700 +Subject: [PATCH 34/69] ARM: Add Krait L2 register accessor functions + +Krait CPUs have a handful of L2 cache controller registers that +live behind a cp15 based indirection register. First you program +the indirection register (l2cpselr) to point the L2 'window' +register (l2cpdr) at what you want to read/write. Then you +read/write the 'window' register to do what you want. The +l2cpselr register is not banked per-cpu so we must lock around +accesses to it to prevent other CPUs from re-pointing l2cpdr +underneath us. + +Cc: Mark Rutland +Cc: Russell King +Cc: Courtney Cavin +Signed-off-by: Stephen Boyd +--- + arch/arm/common/Kconfig | 3 ++ + arch/arm/common/Makefile | 1 + + arch/arm/common/krait-l2-accessors.c | 58 +++++++++++++++++++++++++++++++ + arch/arm/include/asm/krait-l2-accessors.h | 20 +++++++++++ + 4 files changed, 82 insertions(+) + create mode 100644 arch/arm/common/krait-l2-accessors.c + create mode 100644 arch/arm/include/asm/krait-l2-accessors.h + +--- a/arch/arm/common/Kconfig ++++ b/arch/arm/common/Kconfig +@@ -9,6 +9,9 @@ config DMABOUNCE + bool + select ZONE_DMA + ++config KRAIT_L2_ACCESSORS ++ bool ++ + config SHARP_LOCOMO + bool + +--- a/arch/arm/common/Makefile ++++ b/arch/arm/common/Makefile +@@ -7,6 +7,7 @@ obj-y += firmware.o + obj-$(CONFIG_ICST) += icst.o + obj-$(CONFIG_SA1111) += sa1111.o + obj-$(CONFIG_DMABOUNCE) += dmabounce.o ++obj-$(CONFIG_KRAIT_L2_ACCESSORS) += krait-l2-accessors.o + obj-$(CONFIG_SHARP_LOCOMO) += locomo.o + obj-$(CONFIG_SHARP_PARAM) += sharpsl_param.o + obj-$(CONFIG_SHARP_SCOOP) += scoop.o +--- /dev/null ++++ b/arch/arm/common/krait-l2-accessors.c +@@ -0,0 +1,58 @@ ++/* ++ * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++ ++#include ++#include ++ ++static DEFINE_RAW_SPINLOCK(krait_l2_lock); ++ ++void krait_set_l2_indirect_reg(u32 addr, u32 val) ++{ ++ unsigned long flags; ++ ++ raw_spin_lock_irqsave(&krait_l2_lock, flags); ++ /* ++ * Select the L2 window by poking l2cpselr, then write to the window ++ * via l2cpdr. ++ */ ++ asm volatile ("mcr p15, 3, %0, c15, c0, 6 @ l2cpselr" : : "r" (addr)); ++ isb(); ++ asm volatile ("mcr p15, 3, %0, c15, c0, 7 @ l2cpdr" : : "r" (val)); ++ isb(); ++ ++ raw_spin_unlock_irqrestore(&krait_l2_lock, flags); ++} ++EXPORT_SYMBOL(krait_set_l2_indirect_reg); ++ ++u32 krait_get_l2_indirect_reg(u32 addr) ++{ ++ u32 val; ++ unsigned long flags; ++ ++ raw_spin_lock_irqsave(&krait_l2_lock, flags); ++ /* ++ * Select the L2 window by poking l2cpselr, then read from the window ++ * via l2cpdr. ++ */ ++ asm volatile ("mcr p15, 3, %0, c15, c0, 6 @ l2cpselr" : : "r" (addr)); ++ isb(); ++ asm volatile ("mrc p15, 3, %0, c15, c0, 7 @ l2cpdr" : "=r" (val)); ++ ++ raw_spin_unlock_irqrestore(&krait_l2_lock, flags); ++ ++ return val; ++} ++EXPORT_SYMBOL(krait_get_l2_indirect_reg); +--- /dev/null ++++ b/arch/arm/include/asm/krait-l2-accessors.h +@@ -0,0 +1,20 @@ ++/* ++ * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#ifndef __ASMARM_KRAIT_L2_ACCESSORS_H ++#define __ASMARM_KRAIT_L2_ACCESSORS_H ++ ++extern void krait_set_l2_indirect_reg(u32 addr, u32 val); ++extern u32 krait_get_l2_indirect_reg(u32 addr); ++ ++#endif diff --git a/target/linux/ipq806x/patches-4.9/0034-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch b/target/linux/ipq806x/patches-4.9/0034-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch deleted file mode 100644 index 86a8a87a2a..0000000000 --- a/target/linux/ipq806x/patches-4.9/0034-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch +++ /dev/null @@ -1,488 +0,0 @@ -From e8d6fd46f5f3c5860fa7fa98004de9bd97c0d869 Mon Sep 17 00:00:00 2001 -From: Senthilkumar N L -Date: Tue, 6 Jan 2015 12:52:23 +0530 -Subject: [PATCH 34/37] qcom: ipq4019: Add IPQ4019 USB HS/SS PHY drivers - -These drivers handles control and configuration of the HS -and SS USB PHY transceivers. - -Signed-off-by: Senthilkumar N L ---- - drivers/usb/phy/Kconfig | 11 ++ - drivers/usb/phy/Makefile | 2 + - drivers/usb/phy/phy-qca-baldur.c | 262 ++++++++++++++++++++++++++++++++++++++ - drivers/usb/phy/phy-qca-uniphy.c | 171 +++++++++++++++++++++++++ - 4 files changed, 446 insertions(+) - create mode 100644 drivers/usb/phy/phy-qca-baldur.c - create mode 100644 drivers/usb/phy/phy-qca-uniphy.c - ---- a/drivers/usb/phy/Kconfig -+++ b/drivers/usb/phy/Kconfig -@@ -194,6 +194,17 @@ config USB_MXS_PHY - - MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x. - -+config USB_IPQ4019_PHY -+ tristate "IPQ4019 PHY wrappers support" -+ depends on (USB || USB_GADGET) && ARCH_QCOM -+ select USB_PHY -+ help -+ Enable this to support the USB PHY transceivers on QCA961x chips. -+ It handles PHY initialization, clock management required after -+ resetting the hardware and power management. -+ This driver is required even for peripheral only or host only -+ mode configurations. -+ - config USB_ULPI - bool "Generic ULPI Transceiver Driver" - depends on ARM || ARM64 ---- a/drivers/usb/phy/Makefile -+++ b/drivers/usb/phy/Makefile -@@ -21,6 +21,8 @@ obj-$(CONFIG_USB_GPIO_VBUS) += phy-gpio - obj-$(CONFIG_USB_ISP1301) += phy-isp1301.o - obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o - obj-$(CONFIG_USB_QCOM_8X16_PHY) += phy-qcom-8x16-usb.o -+obj-$(CONFIG_USB_IPQ4019_PHY) += phy-qca-baldur.o -+obj-$(CONFIG_USB_IPQ4019_PHY) += phy-qca-uniphy.o - obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o - obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o - obj-$(CONFIG_USB_ULPI) += phy-ulpi.o ---- /dev/null -+++ b/drivers/usb/phy/phy-qca-baldur.c -@@ -0,0 +1,262 @@ -+/* Copyright (c) 2015, The Linux Foundation. All rights reserved. -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -+ * -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+/** -+ * USB Hardware registers -+ */ -+#define PHY_CTRL0_ADDR 0x000 -+#define PHY_CTRL1_ADDR 0x004 -+#define PHY_CTRL2_ADDR 0x008 -+#define PHY_CTRL3_ADDR 0x00C -+#define PHY_CTRL4_ADDR 0x010 -+#define PHY_MISC_ADDR 0x024 -+#define PHY_IPG_ADDR 0x030 -+ -+#define PHY_CTRL0_EMU_ADDR 0x180 -+#define PHY_CTRL1_EMU_ADDR 0x184 -+#define PHY_CTRL2_EMU_ADDR 0x188 -+#define PHY_CTRL3_EMU_ADDR 0x18C -+#define PHY_CTRL4_EMU_ADDR 0x190 -+#define PHY_MISC_EMU_ADDR 0x1A4 -+#define PHY_IPG_EMU_ADDR 0x1B0 -+ -+#define PHY_CTRL0_VAL 0xA4600015 -+#define PHY_CTRL1_VAL 0x09500000 -+#define PHY_CTRL2_VAL 0x00058180 -+#define PHY_CTRL3_VAL 0x6DB6DCD6 -+#define PHY_CTRL4_VAL 0x836DB6DB -+#define PHY_MISC_VAL 0x3803FB0C -+#define PHY_IPG_VAL 0x47323232 -+ -+#define PHY_CTRL0_EMU_VAL 0xb4000015 -+#define PHY_CTRL1_EMU_VAL 0x09500000 -+#define PHY_CTRL2_EMU_VAL 0x00058180 -+#define PHY_CTRL3_EMU_VAL 0x6DB6DCD6 -+#define PHY_CTRL4_EMU_VAL 0x836DB6DB -+#define PHY_MISC_EMU_VAL 0x3803FB0C -+#define PHY_IPG_EMU_VAL 0x47323232 -+ -+#define USB30_HS_PHY_HOST_MODE (0x01 << 21) -+#define USB20_HS_PHY_HOST_MODE (0x01 << 5) -+ -+/* used to differentiate between USB3 HS and USB2 HS PHY */ -+struct qca_baldur_hs_data { -+ unsigned int usb3_hs_phy; -+ unsigned int phy_config_offset; -+}; -+ -+struct qca_baldur_hs_phy { -+ struct device *dev; -+ struct usb_phy phy; -+ -+ void __iomem *base; -+ void __iomem *qscratch_base; -+ -+ struct reset_control *por_rst; -+ struct reset_control *srif_rst; -+ -+ unsigned int host; -+ unsigned int emulation; -+ const struct qca_baldur_hs_data *data; -+}; -+ -+#define phy_to_dw_phy(x) container_of((x), struct qca_baldur_hs_phy, phy) -+ -+static int qca_baldur_phy_read(struct usb_phy *x, u32 reg) -+{ -+ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); -+ -+ return readl(phy->base + reg); -+} -+ -+static int qca_baldur_phy_write(struct usb_phy *x, u32 val, u32 reg) -+{ -+ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); -+ -+ writel(val, phy->base + reg); -+ return 0; -+} -+ -+static int qca_baldur_hs_phy_init(struct usb_phy *x) -+{ -+ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); -+ -+ /* assert HS PHY POR reset */ -+ reset_control_assert(phy->por_rst); -+ msleep(10); -+ -+ /* assert HS PHY SRIF reset */ -+ reset_control_assert(phy->srif_rst); -+ msleep(10); -+ -+ /* deassert HS PHY SRIF reset and program HS PHY registers */ -+ reset_control_deassert(phy->srif_rst); -+ msleep(10); -+ -+ if (!phy->emulation) { -+ /* perform PHY register writes */ -+ writel(PHY_CTRL0_VAL, phy->base + PHY_CTRL0_ADDR); -+ writel(PHY_CTRL1_VAL, phy->base + PHY_CTRL1_ADDR); -+ writel(PHY_CTRL2_VAL, phy->base + PHY_CTRL2_ADDR); -+ writel(PHY_CTRL3_VAL, phy->base + PHY_CTRL3_ADDR); -+ writel(PHY_CTRL4_VAL, phy->base + PHY_CTRL4_ADDR); -+ writel(PHY_MISC_VAL, phy->base + PHY_MISC_ADDR); -+ writel(PHY_IPG_VAL, phy->base + PHY_IPG_ADDR); -+ } else { -+ /* perform PHY register writes */ -+ writel(PHY_CTRL0_EMU_VAL, phy->base + PHY_CTRL0_EMU_ADDR); -+ writel(PHY_CTRL1_EMU_VAL, phy->base + PHY_CTRL1_EMU_ADDR); -+ writel(PHY_CTRL2_EMU_VAL, phy->base + PHY_CTRL2_EMU_ADDR); -+ writel(PHY_CTRL3_EMU_VAL, phy->base + PHY_CTRL3_EMU_ADDR); -+ writel(PHY_CTRL4_EMU_VAL, phy->base + PHY_CTRL4_EMU_ADDR); -+ writel(PHY_MISC_EMU_VAL, phy->base + PHY_MISC_EMU_ADDR); -+ writel(PHY_IPG_EMU_VAL, phy->base + PHY_IPG_EMU_ADDR); -+ } -+ -+ msleep(10); -+ -+ /* de-assert USB3 HS PHY POR reset */ -+ reset_control_deassert(phy->por_rst); -+ -+ return 0; -+} -+ -+static int qca_baldur_hs_get_resources(struct qca_baldur_hs_phy *phy) -+{ -+ struct platform_device *pdev = to_platform_device(phy->dev); -+ struct resource *res; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ phy->base = devm_ioremap_resource(phy->dev, res); -+ if (IS_ERR(phy->base)) -+ return PTR_ERR(phy->base); -+ -+ phy->por_rst = devm_reset_control_get(phy->dev, "por_rst"); -+ if (IS_ERR(phy->por_rst)) -+ return PTR_ERR(phy->por_rst); -+ -+ phy->srif_rst = devm_reset_control_get(phy->dev, "srif_rst"); -+ if (IS_ERR(phy->srif_rst)) -+ return PTR_ERR(phy->srif_rst); -+ -+ return 0; -+} -+ -+static void qca_baldur_hs_put_resources(struct qca_baldur_hs_phy *phy) -+{ -+ reset_control_assert(phy->srif_rst); -+ reset_control_assert(phy->por_rst); -+} -+ -+static int qca_baldur_hs_remove(struct platform_device *pdev) -+{ -+ struct qca_baldur_hs_phy *phy = platform_get_drvdata(pdev); -+ -+ usb_remove_phy(&phy->phy); -+ return 0; -+} -+ -+static void qca_baldur_hs_phy_shutdown(struct usb_phy *x) -+{ -+ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); -+ -+ qca_baldur_hs_put_resources(phy); -+} -+ -+static struct usb_phy_io_ops qca_baldur_io_ops = { -+ .read = qca_baldur_phy_read, -+ .write = qca_baldur_phy_write, -+}; -+ -+static const struct qca_baldur_hs_data usb3_hs_data = { -+ .usb3_hs_phy = 1, -+ .phy_config_offset = USB30_HS_PHY_HOST_MODE, -+}; -+ -+static const struct qca_baldur_hs_data usb2_hs_data = { -+ .usb3_hs_phy = 0, -+ .phy_config_offset = USB20_HS_PHY_HOST_MODE, -+}; -+ -+static const struct of_device_id qca_baldur_hs_id_table[] = { -+ { .compatible = "qca,baldur-usb3-hsphy", .data = &usb3_hs_data }, -+ { .compatible = "qca,baldur-usb2-hsphy", .data = &usb2_hs_data }, -+ { /* Sentinel */ } -+}; -+MODULE_DEVICE_TABLE(of, qca_baldur_hs_id_table); -+ -+static int qca_baldur_hs_probe(struct platform_device *pdev) -+{ -+ const struct of_device_id *match; -+ struct qca_baldur_hs_phy *phy; -+ int err; -+ -+ match = of_match_device(qca_baldur_hs_id_table, &pdev->dev); -+ if (!match) -+ return -ENODEV; -+ -+ phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); -+ if (!phy) -+ return -ENOMEM; -+ -+ platform_set_drvdata(pdev, phy); -+ phy->dev = &pdev->dev; -+ -+ phy->data = match->data; -+ -+ err = qca_baldur_hs_get_resources(phy); -+ if (err < 0) { -+ dev_err(&pdev->dev, "failed to request resources: %d\n", err); -+ return err; -+ } -+ -+ phy->phy.dev = phy->dev; -+ phy->phy.label = "qca-baldur-hsphy"; -+ phy->phy.init = qca_baldur_hs_phy_init; -+ phy->phy.shutdown = qca_baldur_hs_phy_shutdown; -+ phy->phy.type = USB_PHY_TYPE_USB2; -+ phy->phy.io_ops = &qca_baldur_io_ops; -+ -+ err = usb_add_phy_dev(&phy->phy); -+ return err; -+} -+ -+static struct platform_driver qca_baldur_hs_driver = { -+ .probe = qca_baldur_hs_probe, -+ .remove = qca_baldur_hs_remove, -+ .driver = { -+ .name = "qca-baldur-hsphy", -+ .owner = THIS_MODULE, -+ .of_match_table = qca_baldur_hs_id_table, -+ }, -+}; -+ -+module_platform_driver(qca_baldur_hs_driver); -+ -+MODULE_ALIAS("platform:qca-baldur-hsphy"); -+MODULE_LICENSE("Dual BSD/GPL"); -+MODULE_DESCRIPTION("USB3 QCA BALDUR HSPHY driver"); ---- /dev/null -+++ b/drivers/usb/phy/phy-qca-uniphy.c -@@ -0,0 +1,171 @@ -+/* Copyright (c) 2015, The Linux Foundation. All rights reserved. -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -+ * -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+struct qca_uni_ss_phy { -+ struct usb_phy phy; -+ struct device *dev; -+ -+ void __iomem *base; -+ -+ struct reset_control *por_rst; -+ -+ unsigned int host; -+}; -+ -+#define phy_to_dw_phy(x) container_of((x), struct qca_uni_ss_phy, phy) -+ -+/** -+ * Write register -+ * -+ * @base - PHY base virtual address. -+ * @offset - register offset. -+ */ -+static u32 qca_uni_ss_read(void __iomem *base, u32 offset) -+{ -+ u32 value; -+ value = readl_relaxed(base + offset); -+ return value; -+} -+ -+/** -+ * Write register -+ * -+ * @base - PHY base virtual address. -+ * @offset - register offset. -+ * @val - value to write. -+ */ -+static void qca_uni_ss_write(void __iomem *base, u32 offset, u32 val) -+{ -+ writel(val, base + offset); -+ udelay(100); -+} -+ -+static void qca_uni_ss_phy_shutdown(struct usb_phy *x) -+{ -+ struct qca_uni_ss_phy *phy = phy_to_dw_phy(x); -+ -+ /* assert SS PHY POR reset */ -+ reset_control_assert(phy->por_rst); -+} -+ -+static int qca_uni_ss_phy_init(struct usb_phy *x) -+{ -+ struct qca_uni_ss_phy *phy = phy_to_dw_phy(x); -+ -+ /* assert SS PHY POR reset */ -+ reset_control_assert(phy->por_rst); -+ -+ msleep(10); -+ -+ msleep(10); -+ -+ /* deassert SS PHY POR reset */ -+ reset_control_deassert(phy->por_rst); -+ -+ return 0; -+} -+ -+static int qca_uni_ss_get_resources(struct platform_device *pdev, -+ struct qca_uni_ss_phy *phy) -+{ -+ struct resource *res; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ phy->base = devm_ioremap_resource(phy->dev, res); -+ if (IS_ERR(phy->base)) -+ return PTR_ERR(phy->base); -+ -+ phy->por_rst = devm_reset_control_get(phy->dev, "por_rst"); -+ if (IS_ERR(phy->por_rst)) -+ return PTR_ERR(phy->por_rst); -+ -+ return 0; -+} -+ -+static int qca_uni_ss_remove(struct platform_device *pdev) -+{ -+ struct qca_uni_ss_phy *phy = platform_get_drvdata(pdev); -+ -+ usb_remove_phy(&phy->phy); -+ return 0; -+} -+ -+static const struct of_device_id qca_uni_ss_id_table[] = { -+ { .compatible = "qca,uni-ssphy" }, -+ { /* Sentinel */ } -+}; -+MODULE_DEVICE_TABLE(of, qca_uni_ss_id_table); -+ -+static int qca_uni_ss_probe(struct platform_device *pdev) -+{ -+ const struct of_device_id *match; -+ struct device_node *np = pdev->dev.of_node; -+ struct qca_uni_ss_phy *phy; -+ int ret; -+ -+ match = of_match_device(qca_uni_ss_id_table, &pdev->dev); -+ if (!match) -+ return -ENODEV; -+ -+ phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); -+ if (!phy) -+ return -ENOMEM; -+ -+ platform_set_drvdata(pdev, phy); -+ phy->dev = &pdev->dev; -+ -+ ret = qca_uni_ss_get_resources(pdev, phy); -+ if (ret < 0) { -+ dev_err(&pdev->dev, "failed to request resources: %d\n", ret); -+ return ret; -+ } -+ -+ phy->phy.dev = phy->dev; -+ phy->phy.label = "qca-uni-ssphy"; -+ phy->phy.init = qca_uni_ss_phy_init; -+ phy->phy.shutdown = qca_uni_ss_phy_shutdown; -+ phy->phy.type = USB_PHY_TYPE_USB3; -+ -+ ret = usb_add_phy_dev(&phy->phy); -+ return ret; -+} -+ -+static struct platform_driver qca_uni_ss_driver = { -+ .probe = qca_uni_ss_probe, -+ .remove = qca_uni_ss_remove, -+ .driver = { -+ .name = "qca-uni-ssphy", -+ .owner = THIS_MODULE, -+ .of_match_table = qca_uni_ss_id_table, -+ }, -+}; -+ -+module_platform_driver(qca_uni_ss_driver); -+ -+MODULE_ALIAS("platform:qca-uni-ssphy"); -+MODULE_LICENSE("Dual BSD/GPL"); -+MODULE_DESCRIPTION("USB3 QCA UNI SSPHY driver"); diff --git a/target/linux/ipq806x/patches-4.9/0035-clk-mux-Split-out-register-accessors-for-reuse.patch b/target/linux/ipq806x/patches-4.9/0035-clk-mux-Split-out-register-accessors-for-reuse.patch new file mode 100644 index 0000000000..426cabd4e4 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0035-clk-mux-Split-out-register-accessors-for-reuse.patch @@ -0,0 +1,192 @@ +From 9d381d65eae163d8f50d97a3ad9033bba176f62b Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:21 -0700 +Subject: [PATCH 35/69] clk: mux: Split out register accessors for reuse + +We want to reuse the logic in clk-mux.c for other clock drivers +that don't use readl as register accessors. Fortunately, there +really isn't much to the mux code besides the table indirection +and quirk flags if you assume any bit shifting and masking has +been done already. Pull that logic out into reusable functions +that operate on an optional table and some flags so that other +drivers can use the same logic. + +Signed-off-by: Stephen Boyd +Signed-off-by: Georgi Djakov +--- + drivers/clk/clk-mux.c | 76 ++++++++++++++++++++++++++++---------------- + include/linux/clk-provider.h | 11 +++++-- + 2 files changed, 57 insertions(+), 30 deletions(-) + +--- a/drivers/clk/clk-mux.c ++++ b/drivers/clk/clk-mux.c +@@ -26,35 +26,27 @@ + * parent - parent is adjustable through clk_set_parent + */ + +-static u8 clk_mux_get_parent(struct clk_hw *hw) ++#define to_clk_mux(_hw) container_of(_hw, struct clk_mux, hw) ++ ++unsigned int clk_mux_get_parent(struct clk_hw *hw, unsigned int val, ++ unsigned int *table, unsigned long flags) + { + struct clk_mux *mux = to_clk_mux(hw); + int num_parents = clk_hw_get_num_parents(hw); +- u32 val; + +- /* +- * FIXME need a mux-specific flag to determine if val is bitwise or numeric +- * e.g. sys_clkin_ck's clksel field is 3 bits wide, but ranges from 0x1 +- * to 0x7 (index starts at one) +- * OTOH, pmd_trace_clk_mux_ck uses a separate bit for each clock, so +- * val = 0x4 really means "bit 2, index starts at bit 0" +- */ +- val = clk_readl(mux->reg) >> mux->shift; +- val &= mux->mask; +- +- if (mux->table) { ++ if (table) { + int i; + + for (i = 0; i < num_parents; i++) +- if (mux->table[i] == val) ++ if (table[i] == val) + return i; + return -EINVAL; + } + +- if (val && (mux->flags & CLK_MUX_INDEX_BIT)) ++ if (val && (flags & CLK_MUX_INDEX_BIT)) + val = ffs(val) - 1; + +- if (val && (mux->flags & CLK_MUX_INDEX_ONE)) ++ if (val && (flags & CLK_MUX_INDEX_ONE)) + val--; + + if (val >= num_parents) +@@ -62,23 +54,53 @@ static u8 clk_mux_get_parent(struct clk_ + + return val; + } ++EXPORT_SYMBOL_GPL(clk_mux_get_parent); + +-static int clk_mux_set_parent(struct clk_hw *hw, u8 index) ++static u8 _clk_mux_get_parent(struct clk_hw *hw) + { + struct clk_mux *mux = to_clk_mux(hw); + u32 val; +- unsigned long flags = 0; + +- if (mux->table) { +- index = mux->table[index]; ++ /* ++ * FIXME need a mux-specific flag to determine if val is bitwise or numeric ++ * e.g. sys_clkin_ck's clksel field is 3 bits wide, but ranges from 0x1 ++ * to 0x7 (index starts at one) ++ * OTOH, pmd_trace_clk_mux_ck uses a separate bit for each clock, so ++ * val = 0x4 really means "bit 2, index starts at bit 0" ++ */ ++ val = clk_readl(mux->reg) >> mux->shift; ++ val &= mux->mask; ++ ++ return clk_mux_get_parent(hw, val, mux->table, mux->flags); ++} ++ ++unsigned int clk_mux_reindex(u8 index, unsigned int *table, ++ unsigned long flags) ++{ ++ unsigned int val = index; ++ ++ if (table) { ++ val = table[val]; + } else { +- if (mux->flags & CLK_MUX_INDEX_BIT) +- index = 1 << index; ++ if (flags & CLK_MUX_INDEX_BIT) ++ val = 1 << index; + +- if (mux->flags & CLK_MUX_INDEX_ONE) +- index++; ++ if (flags & CLK_MUX_INDEX_ONE) ++ val++; + } + ++ return val; ++} ++EXPORT_SYMBOL_GPL(clk_mux_reindex); ++ ++static int clk_mux_set_parent(struct clk_hw *hw, u8 index) ++{ ++ struct clk_mux *mux = to_clk_mux(hw); ++ u32 val; ++ unsigned long flags = 0; ++ ++ index = clk_mux_reindex(index, mux->table, mux->flags); ++ + if (mux->lock) + spin_lock_irqsave(mux->lock, flags); + else +@@ -102,14 +124,14 @@ static int clk_mux_set_parent(struct clk + } + + const struct clk_ops clk_mux_ops = { +- .get_parent = clk_mux_get_parent, ++ .get_parent = _clk_mux_get_parent, + .set_parent = clk_mux_set_parent, + .determine_rate = __clk_mux_determine_rate, + }; + EXPORT_SYMBOL_GPL(clk_mux_ops); + + const struct clk_ops clk_mux_ro_ops = { +- .get_parent = clk_mux_get_parent, ++ .get_parent = _clk_mux_get_parent, + }; + EXPORT_SYMBOL_GPL(clk_mux_ro_ops); + +@@ -117,7 +139,7 @@ struct clk_hw *clk_hw_register_mux_table + const char * const *parent_names, u8 num_parents, + unsigned long flags, + void __iomem *reg, u8 shift, u32 mask, +- u8 clk_mux_flags, u32 *table, spinlock_t *lock) ++ u8 clk_mux_flags, unsigned int *table, spinlock_t *lock) + { + struct clk_mux *mux; + struct clk_hw *hw; +--- a/include/linux/clk-provider.h ++++ b/include/linux/clk-provider.h +@@ -466,7 +466,7 @@ void clk_hw_unregister_divider(struct cl + struct clk_mux { + struct clk_hw hw; + void __iomem *reg; +- u32 *table; ++ unsigned int *table; + u32 mask; + u8 shift; + u8 flags; +@@ -484,6 +484,11 @@ struct clk_mux { + extern const struct clk_ops clk_mux_ops; + extern const struct clk_ops clk_mux_ro_ops; + ++unsigned int clk_mux_get_parent(struct clk_hw *hw, unsigned int val, ++ unsigned int *table, unsigned long flags); ++unsigned int clk_mux_reindex(u8 index, unsigned int *table, ++ unsigned long flags); ++ + struct clk *clk_register_mux(struct device *dev, const char *name, + const char * const *parent_names, u8 num_parents, + unsigned long flags, +@@ -499,12 +504,12 @@ struct clk *clk_register_mux_table(struc + const char * const *parent_names, u8 num_parents, + unsigned long flags, + void __iomem *reg, u8 shift, u32 mask, +- u8 clk_mux_flags, u32 *table, spinlock_t *lock); ++ u8 clk_mux_flags, unsigned int *table, spinlock_t *lock); + struct clk_hw *clk_hw_register_mux_table(struct device *dev, const char *name, + const char * const *parent_names, u8 num_parents, + unsigned long flags, + void __iomem *reg, u8 shift, u32 mask, +- u8 clk_mux_flags, u32 *table, spinlock_t *lock); ++ u8 clk_mux_flags, unsigned int *table, spinlock_t *lock); + + void clk_unregister_mux(struct clk *clk); + void clk_hw_unregister_mux(struct clk_hw *hw); diff --git a/target/linux/ipq806x/patches-4.9/0035-qcom-ipq4019-add-USB-nodes-to-ipq4019-SoC-device-tre.patch b/target/linux/ipq806x/patches-4.9/0035-qcom-ipq4019-add-USB-nodes-to-ipq4019-SoC-device-tre.patch deleted file mode 100644 index 61768bc7df..0000000000 --- a/target/linux/ipq806x/patches-4.9/0035-qcom-ipq4019-add-USB-nodes-to-ipq4019-SoC-device-tre.patch +++ /dev/null @@ -1,88 +0,0 @@ -From d2ed553484fecdf02fa53bf431599412348afa95 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Thu, 17 Mar 2016 16:22:28 -0500 -Subject: [PATCH 35/37] qcom: ipq4019: add USB nodes to ipq4019 SoC device - tree - -This adds the SoC nodes to the ipq4019 device tree - -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/qcom-ipq4019.dtsi | 67 +++++++++++++++++++++++++++++++++++ - 1 file changed, 67 insertions(+) - ---- a/arch/arm/boot/dts/qcom-ipq4019.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi -@@ -313,5 +313,72 @@ - compatible = "qcom,pshold"; - reg = <0x4ab000 0x4>; - }; -+ -+ usb3_ss_phy: ssphy@9a000 { -+ compatible = "qca,uni-ssphy"; -+ reg = <0x9a000 0x800>; -+ reg-names = "phy_base"; -+ resets = <&gcc USB3_UNIPHY_PHY_ARES>; -+ reset-names = "por_rst"; -+ status = "disabled"; -+ }; -+ -+ usb3_hs_phy: hsphy@a6000 { -+ compatible = "qca,baldur-usb3-hsphy"; -+ reg = <0xa6000 0x40>; -+ reg-names = "phy_base"; -+ resets = <&gcc USB3_HSPHY_POR_ARES>, <&gcc USB3_HSPHY_S_ARES>; -+ reset-names = "por_rst", "srif_rst"; -+ status = "disabled"; -+ }; -+ -+ usb3@0 { -+ compatible = "qcom,dwc3"; -+ #address-cells = <1>; -+ #size-cells = <1>; -+ clocks = <&gcc GCC_USB3_MASTER_CLK>; -+ clock-names = "core"; -+ ranges; -+ status = "disabled"; -+ -+ dwc3@8a00000 { -+ compatible = "snps,dwc3"; -+ reg = <0x8a00000 0xf8000>; -+ interrupts = <0 132 0>; -+ usb-phy = <&usb3_hs_phy>, <&usb3_ss_phy>; -+ phy-names = "usb2-phy", "usb3-phy"; -+ tx-fifo-resize; -+ dr_mode = "host"; -+ }; -+ }; -+ -+ usb2_hs_phy: hsphy@a8000 { -+ compatible = "qca,baldur-usb2-hsphy"; -+ reg = <0xa8000 0x40>; -+ reg-names = "phy_base"; -+ resets = <&gcc USB2_HSPHY_POR_ARES>, <&gcc USB2_HSPHY_S_ARES>; -+ reset-names = "por_rst", "srif_rst"; -+ status = "disabled"; -+ }; -+ -+ usb2@0 { -+ compatible = "qcom,dwc3"; -+ #address-cells = <1>; -+ #size-cells = <1>; -+ clocks = <&gcc GCC_USB2_MASTER_CLK>; -+ clock-names = "core"; -+ ranges; -+ status = "disabled"; -+ -+ dwc3@6000000 { -+ compatible = "snps,dwc3"; -+ reg = <0x6000000 0xf8000>; -+ interrupts = <0 136 0>; -+ usb-phy = <&usb2_hs_phy>; -+ phy-names = "usb2-phy"; -+ tx-fifo-resize; -+ dr_mode = "host"; -+ }; -+ }; - }; - }; diff --git a/target/linux/ipq806x/patches-4.9/0036-clk-Avoid-sending-high-rates-to-downstream-clocks-du.patch b/target/linux/ipq806x/patches-4.9/0036-clk-Avoid-sending-high-rates-to-downstream-clocks-du.patch new file mode 100644 index 0000000000..f4a47c7ba3 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0036-clk-Avoid-sending-high-rates-to-downstream-clocks-du.patch @@ -0,0 +1,107 @@ +From 88e1d6d9c113fe50810d1b03eb1fdbf015e5d1bd Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:22 -0700 +Subject: [PATCH 36/69] clk: Avoid sending high rates to downstream clocks + during set_rate + +If a clock is on and we call clk_set_rate() on it we may get into +a situation where the clock temporarily increases in rate +dramatically while we walk the tree and call .set_rate() ops. For +example, consider a case where a PLL feeds into a divider. +Initially the divider is set to divide by 1 and the PLL is +running fairly slow (100MHz). The downstream consumer of the +divider output can only handle rates =< 400 MHz, but the divider +can only choose between divisors of 1 and 4. + + +-----+ +----------------+ + | PLL |-->| div 1 or div 4 |---> consumer device + +-----+ +----------------+ + +To achieve a rate of 400MHz on the output of the divider, we +would have to set the rate of the PLL to 1.6 GHz and then divide +it by 4. The current code would set the PLL to 1.6GHz first while +the divider is still set to 1, thus causing the downstream +consumer of the clock to receive a few clock cycles of 1.6GHz +clock (far beyond it's maximum acceptable rate). We should be +changing the divider first before increasing the PLL rate to +avoid this problem. + +Therefore, set the rate of any child clocks that are increasing +in rate from their current rate so that they can increase their +dividers if necessary. We assume that there isn't such a thing as +minimum rate requirements. + +Signed-off-by: Stephen Boyd + +Conflicts: + drivers/clk/clk.c +--- + drivers/clk/clk.c | 22 +++++++++++++++------- + 1 file changed, 15 insertions(+), 7 deletions(-) + +--- a/drivers/clk/clk.c ++++ b/drivers/clk/clk.c +@@ -1466,12 +1466,12 @@ static struct clk_core *clk_propagate_ra + * walk down a subtree and set the new rates notifying the rate + * change on the way + */ +-static void clk_change_rate(struct clk_core *core) ++static void ++clk_change_rate(struct clk_core *core, unsigned long best_parent_rate) + { + struct clk_core *child; + struct hlist_node *tmp; + unsigned long old_rate; +- unsigned long best_parent_rate = 0; + bool skip_set_rate = false; + struct clk_core *old_parent; + struct clk_core *parent = NULL; +@@ -1523,6 +1523,7 @@ static void clk_change_rate(struct clk_c + trace_clk_set_rate_complete(core, core->new_rate); + + core->rate = clk_recalc(core, best_parent_rate); ++ core->rate = core->new_rate; + + if (core->flags & CLK_SET_RATE_UNGATE) { + unsigned long flags; +@@ -1550,12 +1551,13 @@ static void clk_change_rate(struct clk_c + /* Skip children who will be reparented to another clock */ + if (child->new_parent && child->new_parent != core) + continue; +- clk_change_rate(child); ++ if (child->new_rate != child->rate) ++ clk_change_rate(child, core->new_rate); + } + +- /* handle the new child who might not be in core->children yet */ +- if (core->new_child) +- clk_change_rate(core->new_child); ++ /* handle the new child who might not be in clk->children yet */ ++ if (core->new_child && core->new_child->new_rate != core->new_child->rate) ++ clk_change_rate(core->new_child, core->new_rate); + } + + static int clk_core_set_rate_nolock(struct clk_core *core, +@@ -1563,6 +1565,7 @@ static int clk_core_set_rate_nolock(stru + { + struct clk_core *top, *fail_clk; + unsigned long rate = req_rate; ++ unsigned long parent_rate; + + if (!core) + return 0; +@@ -1588,8 +1591,13 @@ static int clk_core_set_rate_nolock(stru + return -EBUSY; + } + ++ if (top->parent) ++ parent_rate = top->parent->rate; ++ else ++ parent_rate = 0; ++ + /* change the rates */ +- clk_change_rate(top); ++ clk_change_rate(top, parent_rate); + + core->req_rate = req_rate; + diff --git a/target/linux/ipq806x/patches-4.9/0036-qcom-ipq4019-enable-USB-bus-for-DK01.1-board.patch b/target/linux/ipq806x/patches-4.9/0036-qcom-ipq4019-enable-USB-bus-for-DK01.1-board.patch deleted file mode 100644 index 77be518081..0000000000 --- a/target/linux/ipq806x/patches-4.9/0036-qcom-ipq4019-enable-USB-bus-for-DK01.1-board.patch +++ /dev/null @@ -1,45 +0,0 @@ -From c15caf58ff5c3b4093fa388b9c6228bb3c9c5413 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Mon, 21 Mar 2016 16:12:05 -0500 -Subject: [PATCH 36/37] qcom: ipq4019: enable USB bus for DK01.1 board - -This enables the USB block - -Change-Id: I384dd1874bba341713f384cf6199abd446e3f3c0 -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi | 24 ++++++++++++++++++++++++ - 1 file changed, 24 insertions(+) - ---- a/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi -@@ -108,5 +108,29 @@ - watchdog@b017000 { - status = "ok"; - }; -+ -+ usb3_ss_phy: ssphy@0 { -+ status = "ok"; -+ }; -+ -+ dummy_ss_phy: ssphy@1 { -+ status = "ok"; -+ }; -+ -+ usb3_hs_phy: hsphy@a6000 { -+ status = "ok"; -+ }; -+ -+ usb2_hs_phy: hsphy@a8000 { -+ status = "ok"; -+ }; -+ -+ usb3: usb3@8a00000 { -+ status = "ok"; -+ }; -+ -+ usb2: usb2@6000000 { -+ status = "ok"; -+ }; - }; - }; diff --git a/target/linux/ipq806x/patches-4.9/0037-clk-Add-safe-switch-hook.patch b/target/linux/ipq806x/patches-4.9/0037-clk-Add-safe-switch-hook.patch new file mode 100644 index 0000000000..bff605f8de --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0037-clk-Add-safe-switch-hook.patch @@ -0,0 +1,158 @@ +From a1adfb782789ae9b25c928dfe3d639288563a86c Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:23 -0700 +Subject: [PATCH 37/69] clk: Add safe switch hook + +Sometimes clocks can't accept their parent source turning off +while the source is reprogrammed to a different rate. Most +notably CPU clocks require a way to switch away from the current +PLL they're running on, reprogram that PLL to a new rate, and +then switch back to the PLL with the new rate once they're done. +Add a hook that drivers can implement allowing them to return a +'safe parent' and 'safe frequency' that they can switch their +parent to while the upstream source is reprogrammed to support +this. + +Signed-off-by: Stephen Boyd +Signed-off-by: Georgi Djakov +--- + drivers/clk/clk.c | 73 +++++++++++++++++++++++++++++++++++++++++--- + include/linux/clk-provider.h | 2 ++ + 2 files changed, 70 insertions(+), 5 deletions(-) + +--- a/drivers/clk/clk.c ++++ b/drivers/clk/clk.c +@@ -51,9 +51,13 @@ struct clk_core { + struct clk_core **parents; + u8 num_parents; + u8 new_parent_index; ++ u8 safe_parent_index; + unsigned long rate; + unsigned long req_rate; ++ unsigned long old_rate; + unsigned long new_rate; ++ unsigned long safe_freq; ++ struct clk_core *safe_parent; + struct clk_core *new_parent; + struct clk_core *new_child; + unsigned long flags; +@@ -1310,7 +1314,9 @@ out: + static void clk_calc_subtree(struct clk_core *core, unsigned long new_rate, + struct clk_core *new_parent, u8 p_index) + { +- struct clk_core *child; ++ struct clk_core *child, *parent; ++ struct clk_hw *parent_hw; ++ unsigned long safe_freq = 0; + + core->new_rate = new_rate; + core->new_parent = new_parent; +@@ -1320,6 +1326,23 @@ static void clk_calc_subtree(struct clk_ + if (new_parent && new_parent != core->parent) + new_parent->new_child = core; + ++ if (core->ops->get_safe_parent) { ++ parent_hw = core->ops->get_safe_parent(core->hw, &safe_freq); ++ if (parent_hw) { ++ parent = parent_hw->core; ++ p_index = clk_fetch_parent_index(core, parent); ++ core->safe_parent_index = p_index; ++ core->safe_parent = parent; ++ if (safe_freq) ++ core->safe_freq = safe_freq; ++ else ++ core->safe_freq = 0; ++ } ++ } else { ++ core->safe_parent = NULL; ++ core->safe_freq = 0; ++ } ++ + hlist_for_each_entry(child, &core->children, child_node) { + child->new_rate = clk_recalc(child, new_rate); + clk_calc_subtree(child, child->new_rate, NULL, 0); +@@ -1432,14 +1455,51 @@ static struct clk_core *clk_propagate_ra + unsigned long event) + { + struct clk_core *child, *tmp_clk, *fail_clk = NULL; ++ struct clk_core *old_parent; + int ret = NOTIFY_DONE; + +- if (core->rate == core->new_rate) ++ if (core->rate == core->new_rate && event != POST_RATE_CHANGE) + return NULL; + ++ switch (event) { ++ case PRE_RATE_CHANGE: ++ if (core->safe_parent) { ++ if (core->safe_freq) ++ core->ops->set_rate_and_parent(core->hw, ++ core->safe_freq, ++ core->safe_parent->rate, ++ core->safe_parent_index); ++ else ++ core->ops->set_parent(core->hw, ++ core->safe_parent_index); ++ } ++ core->old_rate = core->rate; ++ break; ++ case POST_RATE_CHANGE: ++ if (core->safe_parent) { ++ old_parent = __clk_set_parent_before(core, ++ core->new_parent); ++ if (core->ops->set_rate_and_parent) { ++ core->ops->set_rate_and_parent(core->hw, ++ core->new_rate, ++ core->new_parent ? ++ core->new_parent->rate : 0, ++ core->new_parent_index); ++ } else if (core->ops->set_parent) { ++ core->ops->set_parent(core->hw, ++ core->new_parent_index); ++ } ++ __clk_set_parent_after(core, core->new_parent, ++ old_parent); ++ } ++ break; ++ } ++ + if (core->notifier_count) { +- ret = __clk_notify(core, event, core->rate, core->new_rate); +- if (ret & NOTIFY_STOP_MASK) ++ if (event != POST_RATE_CHANGE || core->old_rate != core->rate) ++ ret = __clk_notify(core, event, core->old_rate, ++ core->new_rate); ++ if (ret & NOTIFY_STOP_MASK && event != POST_RATE_CHANGE) + fail_clk = core; + } + +@@ -1495,7 +1555,8 @@ clk_change_rate(struct clk_core *core, u + clk_enable_unlock(flags); + } + +- if (core->new_parent && core->new_parent != core->parent) { ++ if (core->new_parent && core->new_parent != core->parent && ++ !core->safe_parent) { + old_parent = __clk_set_parent_before(core, core->new_parent); + trace_clk_set_parent(core, core->new_parent); + +@@ -1601,6 +1662,8 @@ static int clk_core_set_rate_nolock(stru + + core->req_rate = req_rate; + ++ clk_propagate_rate_change(top, POST_RATE_CHANGE); ++ + return 0; + } + +--- a/include/linux/clk-provider.h ++++ b/include/linux/clk-provider.h +@@ -206,6 +206,8 @@ struct clk_ops { + struct clk_rate_request *req); + int (*set_parent)(struct clk_hw *hw, u8 index); + u8 (*get_parent)(struct clk_hw *hw); ++ struct clk_hw *(*get_safe_parent)(struct clk_hw *hw, ++ unsigned long *safe_freq); + int (*set_rate)(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate); + int (*set_rate_and_parent)(struct clk_hw *hw, diff --git a/target/linux/ipq806x/patches-4.9/0037-dts-ipq4019-Add-support-for-IPQ4019-DK04-board.patch b/target/linux/ipq806x/patches-4.9/0037-dts-ipq4019-Add-support-for-IPQ4019-DK04-board.patch deleted file mode 100644 index 21d7e39c58..0000000000 --- a/target/linux/ipq806x/patches-4.9/0037-dts-ipq4019-Add-support-for-IPQ4019-DK04-board.patch +++ /dev/null @@ -1,258 +0,0 @@ -From ff1ecc5bfc11377e82894d05aa45a92657ef8a06 Mon Sep 17 00:00:00 2001 -From: Matthew McClintock -Date: Mon, 21 Mar 2016 15:55:21 -0500 -Subject: [PATCH 37/37] dts: ipq4019: Add support for IPQ4019 DK04 board - -This is pretty similiar to a DK01 but has a bit more IO. Some notable -differences are listed below however they are not in the device tree yet -as we continue adding more support - -- second serial port -- PCIe -- NAND -- SD/EMMC - -Signed-off-by: Matthew McClintock ---- - arch/arm/boot/dts/Makefile | 1 + - arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi | 12 +- - arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c1.dts | 21 +++ - arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi | 163 +++++++++++++++++++++++ - 4 files changed, 189 insertions(+), 8 deletions(-) - create mode 100644 arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c1.dts - create mode 100644 arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi - ---- a/arch/arm/boot/dts/Makefile -+++ b/arch/arm/boot/dts/Makefile -@@ -617,6 +617,7 @@ dtb-$(CONFIG_ARCH_QCOM) += \ - qcom-apq8084-ifc6540.dtb \ - qcom-apq8084-mtp.dtb \ - qcom-ipq4019-ap.dk01.1-c1.dtb \ -+ qcom-ipq4019-ap.dk04.1-c1.dtb \ - qcom-ipq8064-ap148.dtb \ - qcom-msm8660-surf.dtb \ - qcom-msm8960-cdp.dtb \ ---- a/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi -+++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk01.1.dtsi -@@ -109,11 +109,7 @@ - status = "ok"; - }; - -- usb3_ss_phy: ssphy@0 { -- status = "ok"; -- }; -- -- dummy_ss_phy: ssphy@1 { -+ usb3_ss_phy: ssphy@9a000 { - status = "ok"; - }; - -@@ -121,15 +117,15 @@ - status = "ok"; - }; - -- usb2_hs_phy: hsphy@a8000 { -+ usb3@0 { - status = "ok"; - }; - -- usb3: usb3@8a00000 { -+ usb2_hs_phy: hsphy@a8000 { - status = "ok"; - }; - -- usb2: usb2@6000000 { -+ usb2@0{ - status = "ok"; - }; - }; ---- /dev/null -+++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1-c1.dts -@@ -0,0 +1,21 @@ -+/* Copyright (c) 2015, The Linux Foundation. All rights reserved. -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -+ * -+ */ -+ -+#include "qcom-ipq4019-ap.dk04.1.dtsi" -+ -+/ { -+ model = "Qualcomm Technologies, Inc. IPQ40xx/AP-DK04.1-C1"; -+}; ---- /dev/null -+++ b/arch/arm/boot/dts/qcom-ipq4019-ap.dk04.1.dtsi -@@ -0,0 +1,163 @@ -+/* Copyright (c) 2015, The Linux Foundation. All rights reserved. -+ * -+ * Permission to use, copy, modify, and/or distribute this software for any -+ * purpose with or without fee is hereby granted, provided that the above -+ * copyright notice and this permission notice appear in all copies. -+ * -+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF -+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -+ * -+ */ -+ -+#include "qcom-ipq4019.dtsi" -+ -+/ { -+ model = "Qualcomm Technologies, Inc. IPQ4019/AP-DK04.1"; -+ compatible = "qcom,ipq4019"; -+ -+ clocks { -+ xo: xo { -+ compatible = "fixed-clock"; -+ clock-frequency = <48000000>; -+ #clock-cells = <0>; -+ }; -+ }; -+ -+ soc { -+ timer { -+ compatible = "arm,armv7-timer"; -+ interrupts = <1 2 0xf08>, -+ <1 3 0xf08>, -+ <1 4 0xf08>, -+ <1 1 0xf08>; -+ clock-frequency = <48000000>; -+ }; -+ -+ pinctrl@0x01000000 { -+ serial_0_pins: serial_pinmux { -+ mux { -+ pins = "gpio16", "gpio17"; -+ function = "blsp_uart0"; -+ bias-disable; -+ }; -+ }; -+ -+ serial_1_pins: serial1_pinmux { -+ mux { -+ pins = "gpio8", "gpio9"; -+ function = "blsp_uart1"; -+ bias-disable; -+ }; -+ }; -+ -+ spi_0_pins: spi_0_pinmux { -+ pinmux { -+ function = "blsp_spi0"; -+ pins = "gpio13", "gpio14", "gpio15"; -+ }; -+ pinmux_cs { -+ function = "gpio"; -+ pins = "gpio12"; -+ }; -+ pinconf { -+ pins = "gpio13", "gpio14", "gpio15"; -+ drive-strength = <12>; -+ bias-disable; -+ }; -+ pinconf_cs { -+ pins = "gpio12"; -+ drive-strength = <2>; -+ bias-disable; -+ output-high; -+ }; -+ }; -+ -+ i2c_0_pins: i2c_0_pinmux { -+ pinmux { -+ function = "blsp_i2c0"; -+ pins = "gpio10", "gpio11"; -+ }; -+ pinconf { -+ pins = "gpio10", "gpio11"; -+ drive-strength = <16>; -+ bias-disable; -+ }; -+ }; -+ }; -+ -+ blsp_dma: dma@7884000 { -+ status = "ok"; -+ }; -+ -+ spi_0: spi@78b5000 { -+ pinctrl-0 = <&spi_0_pins>; -+ pinctrl-names = "default"; -+ status = "ok"; -+ cs-gpios = <&tlmm 12 0>; -+ -+ mx25l25635e@0 { -+ #address-cells = <1>; -+ #size-cells = <1>; -+ reg = <0>; -+ compatible = "mx25l25635e"; -+ spi-max-frequency = <24000000>; -+ }; -+ }; -+ -+ i2c_0: i2c@78b7000 { /* BLSP1 QUP2 */ -+ pinctrl-0 = <&i2c_0_pins>; -+ pinctrl-names = "default"; -+ -+ status = "ok"; -+ }; -+ -+ serial@78af000 { -+ pinctrl-0 = <&serial_0_pins>; -+ pinctrl-names = "default"; -+ status = "ok"; -+ }; -+ -+ serial@78b0000 { -+ pinctrl-0 = <&serial_1_pins>; -+ pinctrl-names = "default"; -+ status = "ok"; -+ }; -+ -+ usb3_ss_phy: ssphy@9a000 { -+ status = "ok"; -+ }; -+ -+ usb3_hs_phy: hsphy@a6000 { -+ status = "ok"; -+ }; -+ -+ usb3: usb3@0 { -+ status = "ok"; -+ }; -+ -+ usb2_hs_phy: hsphy@a8000 { -+ status = "ok"; -+ }; -+ -+ usb2: usb2@6000000 { -+ status = "ok"; -+ }; -+ -+ cryptobam: dma@8e04000 { -+ status = "ok"; -+ }; -+ -+ crypto@8e3a000 { -+ status = "ok"; -+ }; -+ -+ watchdog@b017000 { -+ status = "ok"; -+ }; -+ }; -+}; diff --git a/target/linux/ipq806x/patches-4.9/0038-clk-qcom-Add-support-for-High-Frequency-PLLs-HFPLLs.patch b/target/linux/ipq806x/patches-4.9/0038-clk-qcom-Add-support-for-High-Frequency-PLLs-HFPLLs.patch new file mode 100644 index 0000000000..e3797cfb71 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0038-clk-qcom-Add-support-for-High-Frequency-PLLs-HFPLLs.patch @@ -0,0 +1,340 @@ +From f044ffe2d612dcaa2de36c918aaab79c8db1482e Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:24 -0700 +Subject: [PATCH 38/69] clk: qcom: Add support for High-Frequency PLLs (HFPLLs) + +HFPLLs are the main frequency source for Krait CPU clocks. Add +support for changing the rate of these PLLs. + +Signed-off-by: Stephen Boyd +--- + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/clk-hfpll.c | 253 +++++++++++++++++++++++++++++++++++++++++++ + drivers/clk/qcom/clk-hfpll.h | 54 +++++++++ + 3 files changed, 308 insertions(+) + create mode 100644 drivers/clk/qcom/clk-hfpll.c + create mode 100644 drivers/clk/qcom/clk-hfpll.h + +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -9,6 +9,7 @@ clk-qcom-y += clk-rcg2.o + clk-qcom-y += clk-branch.o + clk-qcom-y += clk-regmap-divider.o + clk-qcom-y += clk-regmap-mux.o ++clk-qcom-y += clk-hfpll.o + clk-qcom-y += reset.o + clk-qcom-$(CONFIG_QCOM_GDSC) += gdsc.o + +--- /dev/null ++++ b/drivers/clk/qcom/clk-hfpll.c +@@ -0,0 +1,253 @@ ++/* ++ * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "clk-regmap.h" ++#include "clk-hfpll.h" ++ ++#define PLL_OUTCTRL BIT(0) ++#define PLL_BYPASSNL BIT(1) ++#define PLL_RESET_N BIT(2) ++ ++/* Initialize a HFPLL at a given rate and enable it. */ ++static void __clk_hfpll_init_once(struct clk_hw *hw) ++{ ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ struct hfpll_data const *hd = h->d; ++ struct regmap *regmap = h->clkr.regmap; ++ ++ if (likely(h->init_done)) ++ return; ++ ++ /* Configure PLL parameters for integer mode. */ ++ if (hd->config_val) ++ regmap_write(regmap, hd->config_reg, hd->config_val); ++ regmap_write(regmap, hd->m_reg, 0); ++ regmap_write(regmap, hd->n_reg, 1); ++ ++ if (hd->user_reg) { ++ u32 regval = hd->user_val; ++ unsigned long rate; ++ ++ rate = clk_hw_get_rate(hw); ++ ++ /* Pick the right VCO. */ ++ if (hd->user_vco_mask && rate > hd->low_vco_max_rate) ++ regval |= hd->user_vco_mask; ++ regmap_write(regmap, hd->user_reg, regval); ++ } ++ ++ if (hd->droop_reg) ++ regmap_write(regmap, hd->droop_reg, hd->droop_val); ++ ++ h->init_done = true; ++} ++ ++static void __clk_hfpll_enable(struct clk_hw *hw) ++{ ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ struct hfpll_data const *hd = h->d; ++ struct regmap *regmap = h->clkr.regmap; ++ u32 val; ++ ++ __clk_hfpll_init_once(hw); ++ ++ /* Disable PLL bypass mode. */ ++ regmap_update_bits(regmap, hd->mode_reg, PLL_BYPASSNL, PLL_BYPASSNL); ++ ++ /* ++ * H/W requires a 5us delay between disabling the bypass and ++ * de-asserting the reset. Delay 10us just to be safe. ++ */ ++ udelay(10); ++ ++ /* De-assert active-low PLL reset. */ ++ regmap_update_bits(regmap, hd->mode_reg, PLL_RESET_N, PLL_RESET_N); ++ ++ /* Wait for PLL to lock. */ ++ if (hd->status_reg) { ++ do { ++ regmap_read(regmap, hd->status_reg, &val); ++ } while (!(val & BIT(hd->lock_bit))); ++ } else { ++ udelay(60); ++ } ++ ++ /* Enable PLL output. */ ++ regmap_update_bits(regmap, hd->mode_reg, PLL_OUTCTRL, PLL_OUTCTRL); ++} ++ ++/* Enable an already-configured HFPLL. */ ++static int clk_hfpll_enable(struct clk_hw *hw) ++{ ++ unsigned long flags; ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ struct hfpll_data const *hd = h->d; ++ struct regmap *regmap = h->clkr.regmap; ++ u32 mode; ++ ++ spin_lock_irqsave(&h->lock, flags); ++ regmap_read(regmap, hd->mode_reg, &mode); ++ if (!(mode & (PLL_BYPASSNL | PLL_RESET_N | PLL_OUTCTRL))) ++ __clk_hfpll_enable(hw); ++ spin_unlock_irqrestore(&h->lock, flags); ++ ++ return 0; ++} ++ ++static void __clk_hfpll_disable(struct clk_hfpll *h) ++{ ++ struct hfpll_data const *hd = h->d; ++ struct regmap *regmap = h->clkr.regmap; ++ ++ /* ++ * Disable the PLL output, disable test mode, enable the bypass mode, ++ * and assert the reset. ++ */ ++ regmap_update_bits(regmap, hd->mode_reg, ++ PLL_BYPASSNL | PLL_RESET_N | PLL_OUTCTRL, 0); ++} ++ ++static void clk_hfpll_disable(struct clk_hw *hw) ++{ ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ unsigned long flags; ++ ++ spin_lock_irqsave(&h->lock, flags); ++ __clk_hfpll_disable(h); ++ spin_unlock_irqrestore(&h->lock, flags); ++} ++ ++static long clk_hfpll_round_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long *parent_rate) ++{ ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ struct hfpll_data const *hd = h->d; ++ unsigned long rrate; ++ ++ rate = clamp(rate, hd->min_rate, hd->max_rate); ++ ++ rrate = DIV_ROUND_UP(rate, *parent_rate) * *parent_rate; ++ if (rrate > hd->max_rate) ++ rrate -= *parent_rate; ++ ++ return rrate; ++} ++ ++/* ++ * For optimization reasons, assumes no downstream clocks are actively using ++ * it. ++ */ ++static int clk_hfpll_set_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long parent_rate) ++{ ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ struct hfpll_data const *hd = h->d; ++ struct regmap *regmap = h->clkr.regmap; ++ unsigned long flags; ++ u32 l_val, val; ++ bool enabled; ++ ++ l_val = rate / parent_rate; ++ ++ spin_lock_irqsave(&h->lock, flags); ++ ++ enabled = __clk_is_enabled(hw->clk); ++ if (enabled) ++ __clk_hfpll_disable(h); ++ ++ /* Pick the right VCO. */ ++ if (hd->user_reg && hd->user_vco_mask) { ++ regmap_read(regmap, hd->user_reg, &val); ++ if (rate <= hd->low_vco_max_rate) ++ val &= ~hd->user_vco_mask; ++ else ++ val |= hd->user_vco_mask; ++ regmap_write(regmap, hd->user_reg, val); ++ } ++ ++ regmap_write(regmap, hd->l_reg, l_val); ++ ++ if (enabled) ++ __clk_hfpll_enable(hw); ++ ++ spin_unlock_irqrestore(&h->lock, flags); ++ ++ return 0; ++} ++ ++static unsigned long clk_hfpll_recalc_rate(struct clk_hw *hw, ++ unsigned long parent_rate) ++{ ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ struct hfpll_data const *hd = h->d; ++ struct regmap *regmap = h->clkr.regmap; ++ u32 l_val; ++ ++ regmap_read(regmap, hd->l_reg, &l_val); ++ ++ return l_val * parent_rate; ++} ++ ++static void clk_hfpll_init(struct clk_hw *hw) ++{ ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ struct hfpll_data const *hd = h->d; ++ struct regmap *regmap = h->clkr.regmap; ++ u32 mode, status; ++ ++ regmap_read(regmap, hd->mode_reg, &mode); ++ if (mode != (PLL_BYPASSNL | PLL_RESET_N | PLL_OUTCTRL)) { ++ __clk_hfpll_init_once(hw); ++ return; ++ } ++ ++ if (hd->status_reg) { ++ regmap_read(regmap, hd->status_reg, &status); ++ if (!(status & BIT(hd->lock_bit))) { ++ WARN(1, "HFPLL %s is ON, but not locked!\n", ++ __clk_get_name(hw->clk)); ++ clk_hfpll_disable(hw); ++ __clk_hfpll_init_once(hw); ++ } ++ } ++} ++ ++static int hfpll_is_enabled(struct clk_hw *hw) ++{ ++ struct clk_hfpll *h = to_clk_hfpll(hw); ++ struct hfpll_data const *hd = h->d; ++ struct regmap *regmap = h->clkr.regmap; ++ u32 mode; ++ ++ regmap_read(regmap, hd->mode_reg, &mode); ++ mode &= 0x7; ++ return mode == (PLL_BYPASSNL | PLL_RESET_N | PLL_OUTCTRL); ++} ++ ++const struct clk_ops clk_ops_hfpll = { ++ .enable = clk_hfpll_enable, ++ .disable = clk_hfpll_disable, ++ .is_enabled = hfpll_is_enabled, ++ .round_rate = clk_hfpll_round_rate, ++ .set_rate = clk_hfpll_set_rate, ++ .recalc_rate = clk_hfpll_recalc_rate, ++ .init = clk_hfpll_init, ++}; ++EXPORT_SYMBOL_GPL(clk_ops_hfpll); +--- /dev/null ++++ b/drivers/clk/qcom/clk-hfpll.h +@@ -0,0 +1,54 @@ ++/* ++ * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++#ifndef __QCOM_CLK_HFPLL_H__ ++#define __QCOM_CLK_HFPLL_H__ ++ ++#include ++#include ++#include "clk-regmap.h" ++ ++struct hfpll_data { ++ u32 mode_reg; ++ u32 l_reg; ++ u32 m_reg; ++ u32 n_reg; ++ u32 user_reg; ++ u32 droop_reg; ++ u32 config_reg; ++ u32 status_reg; ++ u8 lock_bit; ++ ++ u32 droop_val; ++ u32 config_val; ++ u32 user_val; ++ u32 user_vco_mask; ++ unsigned long low_vco_max_rate; ++ ++ unsigned long min_rate; ++ unsigned long max_rate; ++}; ++ ++struct clk_hfpll { ++ struct hfpll_data const *d; ++ int init_done; ++ ++ struct clk_regmap clkr; ++ spinlock_t lock; ++}; ++ ++#define to_clk_hfpll(_hw) \ ++ container_of(to_clk_regmap(_hw), struct clk_hfpll, clkr) ++ ++extern const struct clk_ops clk_ops_hfpll; ++ ++#endif diff --git a/target/linux/ipq806x/patches-4.9/0039-clk-qcom-Add-HFPLL-driver.patch b/target/linux/ipq806x/patches-4.9/0039-clk-qcom-Add-HFPLL-driver.patch new file mode 100644 index 0000000000..92266f763a --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0039-clk-qcom-Add-HFPLL-driver.patch @@ -0,0 +1,195 @@ +From 23f680d03e5894f494572a5162d21328bd86890c Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:25 -0700 +Subject: [PATCH 39/69] clk: qcom: Add HFPLL driver + +On some devices (MSM8974 for example), the HFPLLs are +instantiated within the Krait processor subsystem as separate +register regions. Add a driver for these PLLs so that we can +provide HFPLL clocks for use by the system. + +Cc: +Signed-off-by: Stephen Boyd +Signed-off-by: Georgi Djakov +--- + .../devicetree/bindings/clock/qcom,hfpll.txt | 40 ++++++++ + drivers/clk/qcom/Kconfig | 8 ++ + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/hfpll.c | 106 +++++++++++++++++++++ + 4 files changed, 155 insertions(+) + create mode 100644 Documentation/devicetree/bindings/clock/qcom,hfpll.txt + create mode 100644 drivers/clk/qcom/hfpll.c + +--- /dev/null ++++ b/Documentation/devicetree/bindings/clock/qcom,hfpll.txt +@@ -0,0 +1,40 @@ ++High-Frequency PLL (HFPLL) ++ ++PROPERTIES ++ ++- compatible: ++ Usage: required ++ Value type: ++ Definition: must be "qcom,hfpll" ++ ++- reg: ++ Usage: required ++ Value type: ++ Definition: address and size of HPLL registers. An optional second ++ element specifies the address and size of the alias ++ register region. ++ ++- clock-output-names: ++ Usage: required ++ Value type: ++ Definition: Name of the PLL. Typically hfpllX where X is a CPU number ++ starting at 0. Otherwise hfpll_Y where Y is more specific ++ such as "l2". ++ ++Example: ++ ++1) An HFPLL for the L2 cache. ++ ++ clock-controller@f9016000 { ++ compatible = "qcom,hfpll"; ++ reg = <0xf9016000 0x30>; ++ clock-output-names = "hfpll_l2"; ++ }; ++ ++2) An HFPLL for CPU0. This HFPLL has the alias register region. ++ ++ clock-controller@f908a000 { ++ compatible = "qcom,hfpll"; ++ reg = <0xf908a000 0x30>, <0xf900a000 0x30>; ++ clock-output-names = "hfpll0"; ++ }; +--- a/drivers/clk/qcom/Kconfig ++++ b/drivers/clk/qcom/Kconfig +@@ -179,3 +179,11 @@ config MSM_MMCC_8996 + Support for the multimedia clock controller on msm8996 devices. + Say Y if you want to support multimedia devices such as display, + graphics, video encode/decode, camera, etc. ++ ++config QCOM_HFPLL ++ tristate "High-Frequency PLL (HFPLL) Clock Controller" ++ depends on COMMON_CLK_QCOM ++ help ++ Support for the high-frequency PLLs present on Qualcomm devices. ++ Say Y if you want to support CPU frequency scaling on devices ++ such as MSM8974, APQ8084, etc. +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -32,3 +32,4 @@ obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8 + obj-$(CONFIG_MSM_MMCC_8996) += mmcc-msm8996.o + obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o + obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o ++obj-$(CONFIG_QCOM_HFPLL) += hfpll.o +--- /dev/null ++++ b/drivers/clk/qcom/hfpll.c +@@ -0,0 +1,106 @@ ++/* ++ * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "clk-regmap.h" ++#include "clk-hfpll.h" ++ ++static const struct hfpll_data hdata = { ++ .mode_reg = 0x00, ++ .l_reg = 0x04, ++ .m_reg = 0x08, ++ .n_reg = 0x0c, ++ .user_reg = 0x10, ++ .config_reg = 0x14, ++ .config_val = 0x430405d, ++ .status_reg = 0x1c, ++ .lock_bit = 16, ++ ++ .user_val = 0x8, ++ .user_vco_mask = 0x100000, ++ .low_vco_max_rate = 1248000000, ++ .min_rate = 537600000UL, ++ .max_rate = 2900000000UL, ++}; ++ ++static const struct of_device_id qcom_hfpll_match_table[] = { ++ { .compatible = "qcom,hfpll" }, ++ { } ++}; ++MODULE_DEVICE_TABLE(of, qcom_hfpll_match_table); ++ ++static const struct regmap_config hfpll_regmap_config = { ++ .reg_bits = 32, ++ .reg_stride = 4, ++ .val_bits = 32, ++ .max_register = 0x30, ++ .fast_io = true, ++}; ++ ++static int qcom_hfpll_probe(struct platform_device *pdev) ++{ ++ struct resource *res; ++ struct device *dev = &pdev->dev; ++ void __iomem *base; ++ struct regmap *regmap; ++ struct clk_hfpll *h; ++ struct clk_init_data init = { ++ .parent_names = (const char *[]){ "xo" }, ++ .num_parents = 1, ++ .ops = &clk_ops_hfpll, ++ }; ++ ++ h = devm_kzalloc(dev, sizeof(*h), GFP_KERNEL); ++ if (!h) ++ return -ENOMEM; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ base = devm_ioremap_resource(dev, res); ++ if (IS_ERR(base)) ++ return PTR_ERR(base); ++ ++ regmap = devm_regmap_init_mmio(&pdev->dev, base, &hfpll_regmap_config); ++ if (IS_ERR(regmap)) ++ return PTR_ERR(regmap); ++ ++ if (of_property_read_string_index(dev->of_node, "clock-output-names", ++ 0, &init.name)) ++ return -ENODEV; ++ ++ h->d = &hdata; ++ h->clkr.hw.init = &init; ++ spin_lock_init(&h->lock); ++ ++ return devm_clk_register_regmap(&pdev->dev, &h->clkr); ++} ++ ++static struct platform_driver qcom_hfpll_driver = { ++ .probe = qcom_hfpll_probe, ++ .driver = { ++ .name = "qcom-hfpll", ++ .of_match_table = qcom_hfpll_match_table, ++ }, ++}; ++module_platform_driver(qcom_hfpll_driver); ++ ++MODULE_DESCRIPTION("QCOM HFPLL Clock Driver"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:qcom-hfpll"); diff --git a/target/linux/ipq806x/patches-4.9/0040-clk-qcom-Add-IPQ806X-s-HFPLLs.patch b/target/linux/ipq806x/patches-4.9/0040-clk-qcom-Add-IPQ806X-s-HFPLLs.patch new file mode 100644 index 0000000000..8a51af79df --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0040-clk-qcom-Add-IPQ806X-s-HFPLLs.patch @@ -0,0 +1,118 @@ +From 0dfdf84ee3982e88a62123b3de1c094d2c0829af Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:27 -0700 +Subject: [PATCH 40/69] clk: qcom: Add IPQ806X's HFPLLs + +Describe the HFPLLs present on IPQ806X devices. + +Signed-off-by: Stephen Boyd +--- + drivers/clk/qcom/gcc-ipq806x.c | 83 ++++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 83 insertions(+) + +--- a/drivers/clk/qcom/gcc-ipq806x.c ++++ b/drivers/clk/qcom/gcc-ipq806x.c +@@ -30,6 +30,7 @@ + #include "clk-pll.h" + #include "clk-rcg.h" + #include "clk-branch.h" ++#include "clk-hfpll.h" + #include "reset.h" + + static struct clk_pll pll0 = { +@@ -113,6 +114,85 @@ static struct clk_regmap pll8_vote = { + }, + }; + ++static struct hfpll_data hfpll0_data = { ++ .mode_reg = 0x3200, ++ .l_reg = 0x3208, ++ .m_reg = 0x320c, ++ .n_reg = 0x3210, ++ .config_reg = 0x3204, ++ .status_reg = 0x321c, ++ .config_val = 0x7845c665, ++ .droop_reg = 0x3214, ++ .droop_val = 0x0108c000, ++ .min_rate = 600000000UL, ++ .max_rate = 1800000000UL, ++}; ++ ++static struct clk_hfpll hfpll0 = { ++ .d = &hfpll0_data, ++ .clkr.hw.init = &(struct clk_init_data){ ++ .parent_names = (const char *[]){ "pxo" }, ++ .num_parents = 1, ++ .name = "hfpll0", ++ .ops = &clk_ops_hfpll, ++ .flags = CLK_IGNORE_UNUSED, ++ }, ++ .lock = __SPIN_LOCK_UNLOCKED(hfpll0.lock), ++}; ++ ++static struct hfpll_data hfpll1_data = { ++ .mode_reg = 0x3240, ++ .l_reg = 0x3248, ++ .m_reg = 0x324c, ++ .n_reg = 0x3250, ++ .config_reg = 0x3244, ++ .status_reg = 0x325c, ++ .config_val = 0x7845c665, ++ .droop_reg = 0x3314, ++ .droop_val = 0x0108c000, ++ .min_rate = 600000000UL, ++ .max_rate = 1800000000UL, ++}; ++ ++static struct clk_hfpll hfpll1 = { ++ .d = &hfpll1_data, ++ .clkr.hw.init = &(struct clk_init_data){ ++ .parent_names = (const char *[]){ "pxo" }, ++ .num_parents = 1, ++ .name = "hfpll1", ++ .ops = &clk_ops_hfpll, ++ .flags = CLK_IGNORE_UNUSED, ++ }, ++ .lock = __SPIN_LOCK_UNLOCKED(hfpll1.lock), ++}; ++ ++static struct hfpll_data hfpll_l2_data = { ++ .mode_reg = 0x3300, ++ .l_reg = 0x3308, ++ .m_reg = 0x330c, ++ .n_reg = 0x3310, ++ .config_reg = 0x3304, ++ .status_reg = 0x331c, ++ .config_val = 0x7845c665, ++ .droop_reg = 0x3314, ++ .droop_val = 0x0108c000, ++ .min_rate = 600000000UL, ++ .max_rate = 1800000000UL, ++}; ++ ++static struct clk_hfpll hfpll_l2 = { ++ .d = &hfpll_l2_data, ++ .clkr.hw.init = &(struct clk_init_data){ ++ .parent_names = (const char *[]){ "pxo" }, ++ .num_parents = 1, ++ .name = "hfpll_l2", ++ .ops = &clk_ops_hfpll, ++ .flags = CLK_IGNORE_UNUSED, ++ }, ++ .lock = __SPIN_LOCK_UNLOCKED(hfpll_l2.lock), ++}; ++ ++ + static struct clk_pll pll14 = { + .l_reg = 0x31c4, + .m_reg = 0x31c8, +@@ -2801,6 +2881,9 @@ static struct clk_regmap *gcc_ipq806x_cl + [UBI32_CORE2_CLK_SRC] = &ubi32_core2_src_clk.clkr, + [NSSTCM_CLK_SRC] = &nss_tcm_src.clkr, + [NSSTCM_CLK] = &nss_tcm_clk.clkr, ++ [PLL9] = &hfpll0.clkr, ++ [PLL10] = &hfpll1.clkr, ++ [PLL12] = &hfpll_l2.clkr, + }; + + static const struct qcom_reset_map gcc_ipq806x_resets[] = { diff --git a/target/linux/ipq806x/patches-4.9/0041-clk-qcom-Add-support-for-Krait-clocks.patch b/target/linux/ipq806x/patches-4.9/0041-clk-qcom-Add-support-for-Krait-clocks.patch new file mode 100644 index 0000000000..902e49d60c --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0041-clk-qcom-Add-support-for-Krait-clocks.patch @@ -0,0 +1,263 @@ +From b9747125a8e7633ed2701a70e32dbb0442193774 Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:28 -0700 +Subject: [PATCH 41/69] clk: qcom: Add support for Krait clocks + +The Krait clocks are made up of a series of muxes and a divider +that choose between a fixed rate clock and dedicated HFPLLs for +each CPU. Instead of using mmio accesses to remux parents, the +Krait implementation exposes the remux control via cp15 +registers. Support these clocks. + +Signed-off-by: Stephen Boyd +--- + drivers/clk/qcom/Kconfig | 4 ++ + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/clk-krait.c | 167 +++++++++++++++++++++++++++++++++++++++++++ + drivers/clk/qcom/clk-krait.h | 49 +++++++++++++ + 4 files changed, 221 insertions(+) + create mode 100644 drivers/clk/qcom/clk-krait.c + create mode 100644 drivers/clk/qcom/clk-krait.h + +--- a/drivers/clk/qcom/Kconfig ++++ b/drivers/clk/qcom/Kconfig +@@ -187,3 +187,7 @@ config QCOM_HFPLL + Support for the high-frequency PLLs present on Qualcomm devices. + Say Y if you want to support CPU frequency scaling on devices + such as MSM8974, APQ8084, etc. ++ ++config KRAIT_CLOCKS ++ bool ++ select KRAIT_L2_ACCESSORS +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -9,6 +9,7 @@ clk-qcom-y += clk-rcg2.o + clk-qcom-y += clk-branch.o + clk-qcom-y += clk-regmap-divider.o + clk-qcom-y += clk-regmap-mux.o ++clk-qcom-$(CONFIG_KRAIT_CLOCKS) += clk-krait.o + clk-qcom-y += clk-hfpll.o + clk-qcom-y += reset.o + clk-qcom-$(CONFIG_QCOM_GDSC) += gdsc.o +--- /dev/null ++++ b/drivers/clk/qcom/clk-krait.c +@@ -0,0 +1,167 @@ ++/* ++ * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++#include "clk-krait.h" ++ ++/* Secondary and primary muxes share the same cp15 register */ ++static DEFINE_SPINLOCK(krait_clock_reg_lock); ++ ++#define LPL_SHIFT 8 ++static void __krait_mux_set_sel(struct krait_mux_clk *mux, int sel) ++{ ++ unsigned long flags; ++ u32 regval; ++ ++ spin_lock_irqsave(&krait_clock_reg_lock, flags); ++ regval = krait_get_l2_indirect_reg(mux->offset); ++ regval &= ~(mux->mask << mux->shift); ++ regval |= (sel & mux->mask) << mux->shift; ++ if (mux->lpl) { ++ regval &= ~(mux->mask << (mux->shift + LPL_SHIFT)); ++ regval |= (sel & mux->mask) << (mux->shift + LPL_SHIFT); ++ } ++ krait_set_l2_indirect_reg(mux->offset, regval); ++ spin_unlock_irqrestore(&krait_clock_reg_lock, flags); ++ ++ /* Wait for switch to complete. */ ++ mb(); ++ udelay(1); ++} ++ ++static int krait_mux_set_parent(struct clk_hw *hw, u8 index) ++{ ++ struct krait_mux_clk *mux = to_krait_mux_clk(hw); ++ u32 sel; ++ ++ sel = clk_mux_reindex(index, mux->parent_map, 0); ++ mux->en_mask = sel; ++ /* Don't touch mux if CPU is off as it won't work */ ++ if (__clk_is_enabled(hw->clk)) ++ __krait_mux_set_sel(mux, sel); ++ return 0; ++} ++ ++static u8 krait_mux_get_parent(struct clk_hw *hw) ++{ ++ struct krait_mux_clk *mux = to_krait_mux_clk(hw); ++ u32 sel; ++ ++ sel = krait_get_l2_indirect_reg(mux->offset); ++ sel >>= mux->shift; ++ sel &= mux->mask; ++ mux->en_mask = sel; ++ ++ return clk_mux_get_parent(hw, sel, mux->parent_map, 0); ++} ++ ++static struct clk_hw *krait_mux_get_safe_parent(struct clk_hw *hw, ++ unsigned long *safe_freq) ++{ ++ int i; ++ struct krait_mux_clk *mux = to_krait_mux_clk(hw); ++ int num_parents = clk_hw_get_num_parents(hw); ++ ++ i = mux->safe_sel; ++ for (i = 0; i < num_parents; i++) ++ if (mux->safe_sel == mux->parent_map[i]) ++ break; ++ ++ return clk_hw_get_parent_by_index(hw, i); ++} ++ ++static int krait_mux_enable(struct clk_hw *hw) ++{ ++ struct krait_mux_clk *mux = to_krait_mux_clk(hw); ++ ++ __krait_mux_set_sel(mux, mux->en_mask); ++ ++ return 0; ++} ++ ++static void krait_mux_disable(struct clk_hw *hw) ++{ ++ struct krait_mux_clk *mux = to_krait_mux_clk(hw); ++ ++ __krait_mux_set_sel(mux, mux->safe_sel); ++} ++ ++const struct clk_ops krait_mux_clk_ops = { ++ .enable = krait_mux_enable, ++ .disable = krait_mux_disable, ++ .set_parent = krait_mux_set_parent, ++ .get_parent = krait_mux_get_parent, ++ .determine_rate = __clk_mux_determine_rate_closest, ++ .get_safe_parent = krait_mux_get_safe_parent, ++}; ++EXPORT_SYMBOL_GPL(krait_mux_clk_ops); ++ ++/* The divider can divide by 2, 4, 6 and 8. But we only really need div-2. */ ++static long krait_div2_round_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long *parent_rate) ++{ ++ *parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), rate * 2); ++ return DIV_ROUND_UP(*parent_rate, 2); ++} ++ ++static int krait_div2_set_rate(struct clk_hw *hw, unsigned long rate, ++ unsigned long parent_rate) ++{ ++ struct krait_div2_clk *d = to_krait_div2_clk(hw); ++ unsigned long flags; ++ u32 val; ++ u32 mask = BIT(d->width) - 1; ++ ++ if (d->lpl) ++ mask = mask << (d->shift + LPL_SHIFT) | mask << d->shift; ++ ++ spin_lock_irqsave(&krait_clock_reg_lock, flags); ++ val = krait_get_l2_indirect_reg(d->offset); ++ val &= ~mask; ++ krait_set_l2_indirect_reg(d->offset, val); ++ spin_unlock_irqrestore(&krait_clock_reg_lock, flags); ++ ++ return 0; ++} ++ ++static unsigned long ++krait_div2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) ++{ ++ struct krait_div2_clk *d = to_krait_div2_clk(hw); ++ u32 mask = BIT(d->width) - 1; ++ u32 div; ++ ++ div = krait_get_l2_indirect_reg(d->offset); ++ div >>= d->shift; ++ div &= mask; ++ div = (div + 1) * 2; ++ ++ return DIV_ROUND_UP(parent_rate, div); ++} ++ ++const struct clk_ops krait_div2_clk_ops = { ++ .round_rate = krait_div2_round_rate, ++ .set_rate = krait_div2_set_rate, ++ .recalc_rate = krait_div2_recalc_rate, ++}; ++EXPORT_SYMBOL_GPL(krait_div2_clk_ops); +--- /dev/null ++++ b/drivers/clk/qcom/clk-krait.h +@@ -0,0 +1,49 @@ ++/* ++ * Copyright (c) 2013, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#ifndef __QCOM_CLK_KRAIT_H ++#define __QCOM_CLK_KRAIT_H ++ ++#include ++ ++struct krait_mux_clk { ++ unsigned int *parent_map; ++ bool has_safe_parent; ++ u8 safe_sel; ++ u32 offset; ++ u32 mask; ++ u32 shift; ++ u32 en_mask; ++ bool lpl; ++ ++ struct clk_hw hw; ++}; ++ ++#define to_krait_mux_clk(_hw) container_of(_hw, struct krait_mux_clk, hw) ++ ++extern const struct clk_ops krait_mux_clk_ops; ++ ++struct krait_div2_clk { ++ u32 offset; ++ u8 width; ++ u32 shift; ++ bool lpl; ++ ++ struct clk_hw hw; ++}; ++ ++#define to_krait_div2_clk(_hw) container_of(_hw, struct krait_div2_clk, hw) ++ ++extern const struct clk_ops krait_div2_clk_ops; ++ ++#endif diff --git a/target/linux/ipq806x/patches-4.9/0042-clk-qcom-Add-KPSS-ACC-GCC-driver.patch b/target/linux/ipq806x/patches-4.9/0042-clk-qcom-Add-KPSS-ACC-GCC-driver.patch new file mode 100644 index 0000000000..c499436478 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0042-clk-qcom-Add-KPSS-ACC-GCC-driver.patch @@ -0,0 +1,196 @@ +From 6039eb63fabdd6871fc70940aa98102665c78eed Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:29 -0700 +Subject: [PATCH 42/69] clk: qcom: Add KPSS ACC/GCC driver + +The ACC and GCC regions present in KPSSv1 contain registers to +control clocks and power to each Krait CPU and L2. For CPUfreq +purposes probe these devices and expose a mux clock that chooses +between PXO and PLL8. + +Cc: +Signed-off-by: Stephen Boyd +--- + .../devicetree/bindings/arm/msm/qcom,kpss-acc.txt | 7 ++ + .../devicetree/bindings/arm/msm/qcom,kpss-gcc.txt | 28 +++++++ + drivers/clk/qcom/Kconfig | 8 ++ + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/kpss-xcc.c | 95 ++++++++++++++++++++++ + 5 files changed, 139 insertions(+) + create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt + create mode 100644 drivers/clk/qcom/kpss-xcc.c + +--- a/Documentation/devicetree/bindings/arm/msm/qcom,kpss-acc.txt ++++ b/Documentation/devicetree/bindings/arm/msm/qcom,kpss-acc.txt +@@ -21,10 +21,17 @@ PROPERTIES + the register region. An optional second element specifies + the base address and size of the alias register region. + ++- clock-output-names: ++ Usage: optional ++ Value type: ++ Definition: Name of the output clock. Typically acpuX_aux where X is a ++ CPU number starting at 0. ++ + Example: + + clock-controller@2088000 { + compatible = "qcom,kpss-acc-v2"; + reg = <0x02088000 0x1000>, + <0x02008000 0x1000>; ++ clock-output-names = "acpu0_aux"; + }; +--- /dev/null ++++ b/Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt +@@ -0,0 +1,28 @@ ++Krait Processor Sub-system (KPSS) Global Clock Controller (GCC) ++ ++PROPERTIES ++ ++- compatible: ++ Usage: required ++ Value type: ++ Definition: should be one of: ++ "qcom,kpss-gcc" ++ ++- reg: ++ Usage: required ++ Value type: ++ Definition: base address and size of the register region ++ ++- clock-output-names: ++ Usage: required ++ Value type: ++ Definition: Name of the output clock. Typically acpu_l2_aux indicating ++ an L2 cache auxiliary clock. ++ ++Example: ++ ++ l2cc: clock-controller@2011000 { ++ compatible = "qcom,kpss-gcc"; ++ reg = <0x2011000 0x1000>; ++ clock-output-names = "acpu_l2_aux"; ++ }; +--- a/drivers/clk/qcom/Kconfig ++++ b/drivers/clk/qcom/Kconfig +@@ -188,6 +188,14 @@ config QCOM_HFPLL + Say Y if you want to support CPU frequency scaling on devices + such as MSM8974, APQ8084, etc. + ++config KPSS_XCC ++ tristate "KPSS Clock Controller" ++ depends on COMMON_CLK_QCOM ++ help ++ Support for the Krait ACC and GCC clock controllers. Say Y ++ if you want to support CPU frequency scaling on devices such ++ as MSM8960, APQ8064, etc. ++ + config KRAIT_CLOCKS + bool + select KRAIT_L2_ACCESSORS +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -33,4 +33,5 @@ obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8 + obj-$(CONFIG_MSM_MMCC_8996) += mmcc-msm8996.o + obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o + obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o ++obj-$(CONFIG_KPSS_XCC) += kpss-xcc.o + obj-$(CONFIG_QCOM_HFPLL) += hfpll.o +--- /dev/null ++++ b/drivers/clk/qcom/kpss-xcc.c +@@ -0,0 +1,95 @@ ++/* Copyright (c) 2014-2015, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++static const char *aux_parents[] = { ++ "pll8_vote", ++ "pxo", ++}; ++ ++static unsigned int aux_parent_map[] = { ++ 3, ++ 0, ++}; ++ ++static const struct of_device_id kpss_xcc_match_table[] = { ++ { .compatible = "qcom,kpss-acc-v1", .data = (void *)1UL }, ++ { .compatible = "qcom,kpss-gcc" }, ++ {} ++}; ++MODULE_DEVICE_TABLE(of, kpss_xcc_match_table); ++ ++static int kpss_xcc_driver_probe(struct platform_device *pdev) ++{ ++ const struct of_device_id *id; ++ struct clk *clk; ++ struct resource *res; ++ void __iomem *base; ++ const char *name; ++ ++ id = of_match_device(kpss_xcc_match_table, &pdev->dev); ++ if (!id) ++ return -ENODEV; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ base = devm_ioremap_resource(&pdev->dev, res); ++ if (IS_ERR(base)) ++ return PTR_ERR(base); ++ ++ if (id->data) { ++ if (of_property_read_string_index(pdev->dev.of_node, ++ "clock-output-names", 0, &name)) ++ return -ENODEV; ++ base += 0x14; ++ } else { ++ name = "acpu_l2_aux"; ++ base += 0x28; ++ } ++ ++ clk = clk_register_mux_table(&pdev->dev, name, aux_parents, ++ ARRAY_SIZE(aux_parents), 0, base, 0, 0x3, ++ 0, aux_parent_map, NULL); ++ ++ platform_set_drvdata(pdev, clk); ++ ++ return PTR_ERR_OR_ZERO(clk); ++} ++ ++static int kpss_xcc_driver_remove(struct platform_device *pdev) ++{ ++ clk_unregister_mux(platform_get_drvdata(pdev)); ++ return 0; ++} ++ ++static struct platform_driver kpss_xcc_driver = { ++ .probe = kpss_xcc_driver_probe, ++ .remove = kpss_xcc_driver_remove, ++ .driver = { ++ .name = "kpss-xcc", ++ .of_match_table = kpss_xcc_match_table, ++ }, ++}; ++module_platform_driver(kpss_xcc_driver); ++ ++MODULE_DESCRIPTION("Krait Processor Sub System (KPSS) Clock Driver"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:kpss-xcc"); diff --git a/target/linux/ipq806x/patches-4.9/0043-clk-qcom-Add-Krait-clock-controller-driver.patch b/target/linux/ipq806x/patches-4.9/0043-clk-qcom-Add-Krait-clock-controller-driver.patch new file mode 100644 index 0000000000..7e2e41e3bb --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0043-clk-qcom-Add-Krait-clock-controller-driver.patch @@ -0,0 +1,426 @@ +From 7fb5976eb0231a06f484a6bde5e5fbfee7ee4f4a Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:30 -0700 +Subject: [PATCH 43/69] clk: qcom: Add Krait clock controller driver + +The Krait CPU clocks are made up of a primary mux and secondary +mux for each CPU and the L2, controlled via cp15 accessors. For +Kraits within KPSSv1 each secondary mux accepts a different aux +source, but on KPSSv2 each secondary mux accepts the same aux +source. + +Cc: +Signed-off-by: Stephen Boyd +--- + .../devicetree/bindings/clock/qcom,krait-cc.txt | 22 ++ + drivers/clk/qcom/Kconfig | 8 + + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/krait-cc.c | 352 +++++++++++++++++++++ + 4 files changed, 383 insertions(+) + create mode 100644 Documentation/devicetree/bindings/clock/qcom,krait-cc.txt + create mode 100644 drivers/clk/qcom/krait-cc.c + +--- /dev/null ++++ b/Documentation/devicetree/bindings/clock/qcom,krait-cc.txt +@@ -0,0 +1,22 @@ ++Krait Clock Controller ++ ++PROPERTIES ++ ++- compatible: ++ Usage: required ++ Value type: ++ Definition: must be one of: ++ "qcom,krait-cc-v1" ++ "qcom,krait-cc-v2" ++ ++- #clock-cells: ++ Usage: required ++ Value type: ++ Definition: must be 1 ++ ++Example: ++ ++ kraitcc: clock-controller { ++ compatible = "qcom,krait-cc-v1"; ++ #clock-cells = <1>; ++ }; +--- a/drivers/clk/qcom/Kconfig ++++ b/drivers/clk/qcom/Kconfig +@@ -196,6 +196,14 @@ config KPSS_XCC + if you want to support CPU frequency scaling on devices such + as MSM8960, APQ8064, etc. + ++config KRAITCC ++ tristate "Krait Clock Controller" ++ depends on COMMON_CLK_QCOM && ARM ++ select KRAIT_CLOCKS ++ help ++ Support for the Krait CPU clocks on Qualcomm devices. ++ Say Y if you want to support CPU frequency scaling. ++ + config KRAIT_CLOCKS + bool + select KRAIT_L2_ACCESSORS +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -35,3 +35,4 @@ obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o + obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o + obj-$(CONFIG_KPSS_XCC) += kpss-xcc.o + obj-$(CONFIG_QCOM_HFPLL) += hfpll.o ++obj-$(CONFIG_KRAITCC) += krait-cc.o +--- /dev/null ++++ b/drivers/clk/qcom/krait-cc.c +@@ -0,0 +1,352 @@ ++/* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "clk-krait.h" ++ ++static unsigned int sec_mux_map[] = { ++ 2, ++ 0, ++}; ++ ++static unsigned int pri_mux_map[] = { ++ 1, ++ 2, ++ 0, ++}; ++ ++static int ++krait_add_div(struct device *dev, int id, const char *s, unsigned offset) ++{ ++ struct krait_div2_clk *div; ++ struct clk_init_data init = { ++ .num_parents = 1, ++ .ops = &krait_div2_clk_ops, ++ .flags = CLK_SET_RATE_PARENT, ++ }; ++ const char *p_names[1]; ++ struct clk *clk; ++ ++ div = devm_kzalloc(dev, sizeof(*div), GFP_KERNEL); ++ if (!div) ++ return -ENOMEM; ++ ++ div->width = 2; ++ div->shift = 6; ++ div->lpl = id >= 0; ++ div->offset = offset; ++ div->hw.init = &init; ++ ++ init.name = kasprintf(GFP_KERNEL, "hfpll%s_div", s); ++ if (!init.name) ++ return -ENOMEM; ++ ++ init.parent_names = p_names; ++ p_names[0] = kasprintf(GFP_KERNEL, "hfpll%s", s); ++ if (!p_names[0]) { ++ kfree(init.name); ++ return -ENOMEM; ++ } ++ ++ clk = devm_clk_register(dev, &div->hw); ++ kfree(p_names[0]); ++ kfree(init.name); ++ ++ return PTR_ERR_OR_ZERO(clk); ++} ++ ++static int ++krait_add_sec_mux(struct device *dev, int id, const char *s, unsigned offset, ++ bool unique_aux) ++{ ++ struct krait_mux_clk *mux; ++ static const char *sec_mux_list[] = { ++ "acpu_aux", ++ "qsb", ++ }; ++ struct clk_init_data init = { ++ .parent_names = sec_mux_list, ++ .num_parents = ARRAY_SIZE(sec_mux_list), ++ .ops = &krait_mux_clk_ops, ++ .flags = CLK_SET_RATE_PARENT, ++ }; ++ struct clk *clk; ++ ++ mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL); ++ if (!mux) ++ return -ENOMEM; ++ ++ mux->offset = offset; ++ mux->lpl = id >= 0; ++ mux->has_safe_parent = true; ++ mux->safe_sel = 2; ++ mux->mask = 0x3; ++ mux->shift = 2; ++ mux->parent_map = sec_mux_map; ++ mux->hw.init = &init; ++ ++ init.name = kasprintf(GFP_KERNEL, "krait%s_sec_mux", s); ++ if (!init.name) ++ return -ENOMEM; ++ ++ if (unique_aux) { ++ sec_mux_list[0] = kasprintf(GFP_KERNEL, "acpu%s_aux", s); ++ if (!sec_mux_list[0]) { ++ clk = ERR_PTR(-ENOMEM); ++ goto err_aux; ++ } ++ } ++ ++ clk = devm_clk_register(dev, &mux->hw); ++ ++ if (unique_aux) ++ kfree(sec_mux_list[0]); ++err_aux: ++ kfree(init.name); ++ return PTR_ERR_OR_ZERO(clk); ++} ++ ++static struct clk * ++krait_add_pri_mux(struct device *dev, int id, const char *s, unsigned offset) ++{ ++ struct krait_mux_clk *mux; ++ const char *p_names[3]; ++ struct clk_init_data init = { ++ .parent_names = p_names, ++ .num_parents = ARRAY_SIZE(p_names), ++ .ops = &krait_mux_clk_ops, ++ .flags = CLK_SET_RATE_PARENT, ++ }; ++ struct clk *clk; ++ ++ mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL); ++ if (!mux) ++ return ERR_PTR(-ENOMEM); ++ ++ mux->has_safe_parent = true; ++ mux->safe_sel = 0; ++ mux->mask = 0x3; ++ mux->shift = 0; ++ mux->offset = offset; ++ mux->lpl = id >= 0; ++ mux->parent_map = pri_mux_map; ++ mux->hw.init = &init; ++ ++ init.name = kasprintf(GFP_KERNEL, "krait%s_pri_mux", s); ++ if (!init.name) ++ return ERR_PTR(-ENOMEM); ++ ++ p_names[0] = kasprintf(GFP_KERNEL, "hfpll%s", s); ++ if (!p_names[0]) { ++ clk = ERR_PTR(-ENOMEM); ++ goto err_p0; ++ } ++ ++ p_names[1] = kasprintf(GFP_KERNEL, "hfpll%s_div", s); ++ if (!p_names[1]) { ++ clk = ERR_PTR(-ENOMEM); ++ goto err_p1; ++ } ++ ++ p_names[2] = kasprintf(GFP_KERNEL, "krait%s_sec_mux", s); ++ if (!p_names[2]) { ++ clk = ERR_PTR(-ENOMEM); ++ goto err_p2; ++ } ++ ++ clk = devm_clk_register(dev, &mux->hw); ++ ++ kfree(p_names[2]); ++err_p2: ++ kfree(p_names[1]); ++err_p1: ++ kfree(p_names[0]); ++err_p0: ++ kfree(init.name); ++ return clk; ++} ++ ++/* id < 0 for L2, otherwise id == physical CPU number */ ++static struct clk *krait_add_clks(struct device *dev, int id, bool unique_aux) ++{ ++ int ret; ++ unsigned offset; ++ void *p = NULL; ++ const char *s; ++ struct clk *clk; ++ ++ if (id >= 0) { ++ offset = 0x4501 + (0x1000 * id); ++ s = p = kasprintf(GFP_KERNEL, "%d", id); ++ if (!s) ++ return ERR_PTR(-ENOMEM); ++ } else { ++ offset = 0x500; ++ s = "_l2"; ++ } ++ ++ ret = krait_add_div(dev, id, s, offset); ++ if (ret) { ++ clk = ERR_PTR(ret); ++ goto err; ++ } ++ ++ ret = krait_add_sec_mux(dev, id, s, offset, unique_aux); ++ if (ret) { ++ clk = ERR_PTR(ret); ++ goto err; ++ } ++ ++ clk = krait_add_pri_mux(dev, id, s, offset); ++err: ++ kfree(p); ++ return clk; ++} ++ ++static struct clk *krait_of_get(struct of_phandle_args *clkspec, void *data) ++{ ++ unsigned int idx = clkspec->args[0]; ++ struct clk **clks = data; ++ ++ if (idx >= 5) { ++ pr_err("%s: invalid clock index %d\n", __func__, idx); ++ return ERR_PTR(-EINVAL); ++ } ++ ++ return clks[idx] ? : ERR_PTR(-ENODEV); ++} ++ ++static const struct of_device_id krait_cc_match_table[] = { ++ { .compatible = "qcom,krait-cc-v1", (void *)1UL }, ++ { .compatible = "qcom,krait-cc-v2" }, ++ {} ++}; ++MODULE_DEVICE_TABLE(of, krait_cc_match_table); ++ ++static int krait_cc_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ const struct of_device_id *id; ++ unsigned long cur_rate, aux_rate; ++ int cpu; ++ struct clk *clk; ++ struct clk **clks; ++ struct clk *l2_pri_mux_clk; ++ ++ id = of_match_device(krait_cc_match_table, dev); ++ if (!id) ++ return -ENODEV; ++ ++ /* Rate is 1 because 0 causes problems for __clk_mux_determine_rate */ ++ clk = clk_register_fixed_rate(dev, "qsb", NULL, CLK_IS_ROOT, 1); ++ if (IS_ERR(clk)) ++ return PTR_ERR(clk); ++ ++ if (!id->data) { ++ clk = clk_register_fixed_factor(dev, "acpu_aux", ++ "gpll0_vote", 0, 1, 2); ++ if (IS_ERR(clk)) ++ return PTR_ERR(clk); ++ } ++ ++ /* Krait configurations have at most 4 CPUs and one L2 */ ++ clks = devm_kcalloc(dev, 5, sizeof(*clks), GFP_KERNEL); ++ if (!clks) ++ return -ENOMEM; ++ ++ for_each_possible_cpu(cpu) { ++ clk = krait_add_clks(dev, cpu, id->data); ++ if (IS_ERR(clk)) ++ return PTR_ERR(clk); ++ clks[cpu] = clk; ++ } ++ ++ l2_pri_mux_clk = krait_add_clks(dev, -1, id->data); ++ if (IS_ERR(l2_pri_mux_clk)) ++ return PTR_ERR(l2_pri_mux_clk); ++ clks[4] = l2_pri_mux_clk; ++ ++ /* ++ * We don't want the CPU or L2 clocks to be turned off at late init ++ * if CPUFREQ or HOTPLUG configs are disabled. So, bump up the ++ * refcount of these clocks. Any cpufreq/hotplug manager can assume ++ * that the clocks have already been prepared and enabled by the time ++ * they take over. ++ */ ++ for_each_online_cpu(cpu) { ++ clk_prepare_enable(l2_pri_mux_clk); ++ WARN(clk_prepare_enable(clks[cpu]), ++ "Unable to turn on CPU%d clock", cpu); ++ } ++ ++ /* ++ * Force reinit of HFPLLs and muxes to overwrite any potential ++ * incorrect configuration of HFPLLs and muxes by the bootloader. ++ * While at it, also make sure the cores are running at known rates ++ * and print the current rate. ++ * ++ * The clocks are set to aux clock rate first to make sure the ++ * secondary mux is not sourcing off of QSB. The rate is then set to ++ * two different rates to force a HFPLL reinit under all ++ * circumstances. ++ */ ++ cur_rate = clk_get_rate(l2_pri_mux_clk); ++ aux_rate = 384000000; ++ if (cur_rate == 1) { ++ pr_info("L2 @ QSB rate. Forcing new rate.\n"); ++ cur_rate = aux_rate; ++ } ++ clk_set_rate(l2_pri_mux_clk, aux_rate); ++ clk_set_rate(l2_pri_mux_clk, 2); ++ clk_set_rate(l2_pri_mux_clk, cur_rate); ++ pr_info("L2 @ %lu KHz\n", clk_get_rate(l2_pri_mux_clk) / 1000); ++ for_each_possible_cpu(cpu) { ++ clk = clks[cpu]; ++ cur_rate = clk_get_rate(clk); ++ if (cur_rate == 1) { ++ pr_info("CPU%d @ QSB rate. Forcing new rate.\n", cpu); ++ cur_rate = aux_rate; ++ } ++ clk_set_rate(clk, aux_rate); ++ clk_set_rate(clk, 2); ++ clk_set_rate(clk, cur_rate); ++ pr_info("CPU%d @ %lu KHz\n", cpu, clk_get_rate(clk) / 1000); ++ } ++ ++ of_clk_add_provider(dev->of_node, krait_of_get, clks); ++ ++ return 0; ++} ++ ++static struct platform_driver krait_cc_driver = { ++ .probe = krait_cc_probe, ++ .driver = { ++ .name = "krait-cc", ++ .of_match_table = krait_cc_match_table, ++ }, ++}; ++module_platform_driver(krait_cc_driver); ++ ++MODULE_DESCRIPTION("Krait CPU Clock Driver"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:krait-cc"); diff --git a/target/linux/ipq806x/patches-4.9/0044-clk-qcom-krait-Remove-CLK_IS_ROOT.patch b/target/linux/ipq806x/patches-4.9/0044-clk-qcom-krait-Remove-CLK_IS_ROOT.patch new file mode 100644 index 0000000000..c3761eef53 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0044-clk-qcom-krait-Remove-CLK_IS_ROOT.patch @@ -0,0 +1,23 @@ +From 58f8215f1d9397f9130657cc2c15a956bd99210e Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Wed, 13 Jul 2016 15:22:25 +0300 +Subject: [PATCH 44/69] clk: qcom: krait: Remove CLK_IS_ROOT + +The flag CLK_IS_ROOT is no-op now. Remove it. + +Signed-off-by: Georgi Djakov +--- + drivers/clk/qcom/krait-cc.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/clk/qcom/krait-cc.c ++++ b/drivers/clk/qcom/krait-cc.c +@@ -258,7 +258,7 @@ static int krait_cc_probe(struct platfor + return -ENODEV; + + /* Rate is 1 because 0 causes problems for __clk_mux_determine_rate */ +- clk = clk_register_fixed_rate(dev, "qsb", NULL, CLK_IS_ROOT, 1); ++ clk = clk_register_fixed_rate(dev, "qsb", NULL, 0, 1); + if (IS_ERR(clk)) + return PTR_ERR(clk); + diff --git a/target/linux/ipq806x/patches-4.9/0045-cpufreq-Add-module-to-register-cpufreq-on-Krait-CPUs.patch b/target/linux/ipq806x/patches-4.9/0045-cpufreq-Add-module-to-register-cpufreq-on-Krait-CPUs.patch new file mode 100644 index 0000000000..f5b5ea0fdb --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0045-cpufreq-Add-module-to-register-cpufreq-on-Krait-CPUs.patch @@ -0,0 +1,295 @@ +From 42eea6bc2858ab9649cf6931455e391e48939685 Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 20 Mar 2015 23:45:31 -0700 +Subject: [PATCH 45/69] cpufreq: Add module to register cpufreq on Krait CPUs + +Register a cpufreq-generic device whenever we detect that a +"qcom,krait" compatible CPU is present in DT. + +Cc: +Signed-off-by: Stephen Boyd +--- + .../devicetree/bindings/arm/msm/qcom,pvs.txt | 38 ++++ + drivers/cpufreq/Kconfig.arm | 9 + + drivers/cpufreq/Makefile | 1 + + drivers/cpufreq/qcom-cpufreq.c | 204 +++++++++++++++++++++ + 4 files changed, 252 insertions(+) + create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,pvs.txt + create mode 100644 drivers/cpufreq/qcom-cpufreq.c + +--- /dev/null ++++ b/Documentation/devicetree/bindings/arm/msm/qcom,pvs.txt +@@ -0,0 +1,38 @@ ++Qualcomm Process Voltage Scaling Tables ++ ++The node name is required to be "qcom,pvs". There shall only be one ++such node present in the root of the tree. ++ ++PROPERTIES ++ ++- qcom,pvs-format-a or qcom,pvs-format-b: ++ Usage: required ++ Value type: ++ Definition: Indicates the format of qcom,speedX-pvsY-bin-vZ properties. ++ If qcom,pvs-format-a is used the table is two columns ++ (frequency and voltage in that order). If qcom,pvs-format-b is used the table is three columns (frequency, voltage, ++ and current in that order). ++ ++- qcom,speedX-pvsY-bin-vZ: ++ Usage: required ++ Value type: ++ Definition: The PVS table corresponding to the speed bin X, pvs bin Y, ++ and version Z. ++Example: ++ ++ qcom,pvs { ++ qcom,pvs-format-a; ++ qcom,speed0-pvs0-bin-v0 = ++ < 384000000 950000 >, ++ < 486000000 975000 >, ++ < 594000000 1000000 >, ++ < 702000000 1025000 >, ++ < 810000000 1075000 >, ++ < 918000000 1100000 >, ++ < 1026000000 1125000 >, ++ < 1134000000 1175000 >, ++ < 1242000000 1200000 >, ++ < 1350000000 1225000 >, ++ < 1458000000 1237500 >, ++ < 1512000000 1250000 >; ++ }; +--- a/drivers/cpufreq/Kconfig.arm ++++ b/drivers/cpufreq/Kconfig.arm +@@ -88,6 +88,15 @@ config ARM_OMAP2PLUS_CPUFREQ + depends on ARCH_OMAP2PLUS + default ARCH_OMAP2PLUS + ++config ARM_QCOM_CPUFREQ ++ tristate "Qualcomm based" ++ depends on ARCH_QCOM ++ select PM_OPP ++ help ++ This adds the CPUFreq driver for Qualcomm SoC based boards. ++ ++ If in doubt, say N. ++ + config ARM_S3C_CPUFREQ + bool + help +--- a/drivers/cpufreq/Makefile ++++ b/drivers/cpufreq/Makefile +@@ -62,6 +62,7 @@ obj-$(CONFIG_ARM_MT8173_CPUFREQ) += mt81 + obj-$(CONFIG_ARM_OMAP2PLUS_CPUFREQ) += omap-cpufreq.o + obj-$(CONFIG_ARM_PXA2xx_CPUFREQ) += pxa2xx-cpufreq.o + obj-$(CONFIG_PXA3xx) += pxa3xx-cpufreq.o ++obj-$(CONFIG_ARM_QCOM_CPUFREQ) += qcom-cpufreq.o + obj-$(CONFIG_ARM_S3C24XX_CPUFREQ) += s3c24xx-cpufreq.o + obj-$(CONFIG_ARM_S3C24XX_CPUFREQ_DEBUGFS) += s3c24xx-cpufreq-debugfs.o + obj-$(CONFIG_ARM_S3C2410_CPUFREQ) += s3c2410-cpufreq.o +--- /dev/null ++++ b/drivers/cpufreq/qcom-cpufreq.c +@@ -0,0 +1,204 @@ ++/* Copyright (c) 2014, The Linux Foundation. All rights reserved. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 and ++ * only version 2 as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++static void __init get_krait_bin_format_a(int *speed, int *pvs, int *pvs_ver) ++{ ++ void __iomem *base; ++ u32 pte_efuse; ++ ++ *speed = *pvs = *pvs_ver = 0; ++ ++ base = ioremap(0x007000c0, 4); ++ if (!base) { ++ pr_warn("Unable to read efuse data. Defaulting to 0!\n"); ++ return; ++ } ++ ++ pte_efuse = readl_relaxed(base); ++ iounmap(base); ++ ++ *speed = pte_efuse & 0xf; ++ if (*speed == 0xf) ++ *speed = (pte_efuse >> 4) & 0xf; ++ ++ if (*speed == 0xf) { ++ *speed = 0; ++ pr_warn("Speed bin: Defaulting to %d\n", *speed); ++ } else { ++ pr_info("Speed bin: %d\n", *speed); ++ } ++ ++ *pvs = (pte_efuse >> 10) & 0x7; ++ if (*pvs == 0x7) ++ *pvs = (pte_efuse >> 13) & 0x7; ++ ++ if (*pvs == 0x7) { ++ *pvs = 0; ++ pr_warn("PVS bin: Defaulting to %d\n", *pvs); ++ } else { ++ pr_info("PVS bin: %d\n", *pvs); ++ } ++} ++ ++static void __init get_krait_bin_format_b(int *speed, int *pvs, int *pvs_ver) ++{ ++ u32 pte_efuse, redundant_sel; ++ void __iomem *base; ++ ++ *speed = 0; ++ *pvs = 0; ++ *pvs_ver = 0; ++ ++ base = ioremap(0xfc4b80b0, 8); ++ if (!base) { ++ pr_warn("Unable to read efuse data. Defaulting to 0!\n"); ++ return; ++ } ++ ++ pte_efuse = readl_relaxed(base); ++ redundant_sel = (pte_efuse >> 24) & 0x7; ++ *speed = pte_efuse & 0x7; ++ /* 4 bits of PVS are in efuse register bits 31, 8-6. */ ++ *pvs = ((pte_efuse >> 28) & 0x8) | ((pte_efuse >> 6) & 0x7); ++ *pvs_ver = (pte_efuse >> 4) & 0x3; ++ ++ switch (redundant_sel) { ++ case 1: ++ *speed = (pte_efuse >> 27) & 0xf; ++ break; ++ case 2: ++ *pvs = (pte_efuse >> 27) & 0xf; ++ break; ++ } ++ ++ /* Check SPEED_BIN_BLOW_STATUS */ ++ if (pte_efuse & BIT(3)) { ++ pr_info("Speed bin: %d\n", *speed); ++ } else { ++ pr_warn("Speed bin not set. Defaulting to 0!\n"); ++ *speed = 0; ++ } ++ ++ /* Check PVS_BLOW_STATUS */ ++ pte_efuse = readl_relaxed(base + 0x4) & BIT(21); ++ if (pte_efuse) { ++ pr_info("PVS bin: %d\n", *pvs); ++ } else { ++ pr_warn("PVS bin not set. Defaulting to 0!\n"); ++ *pvs = 0; ++ } ++ ++ pr_info("PVS version: %d\n", *pvs_ver); ++ iounmap(base); ++} ++ ++static int __init qcom_cpufreq_populate_opps(void) ++{ ++ int len, rows, cols, i, k, speed, pvs, pvs_ver; ++ char table_name[] = "qcom,speedXX-pvsXX-bin-vXX"; ++ struct device_node *np; ++ struct device *dev; ++ int cpu = 0; ++ ++ np = of_find_node_by_name(NULL, "qcom,pvs"); ++ if (!np) ++ return -ENODEV; ++ ++ if (of_property_read_bool(np, "qcom,pvs-format-a")) { ++ get_krait_bin_format_a(&speed, &pvs, &pvs_ver); ++ cols = 2; ++ } else if (of_property_read_bool(np, "qcom,pvs-format-b")) { ++ get_krait_bin_format_b(&speed, &pvs, &pvs_ver); ++ cols = 3; ++ } else { ++ return -ENODEV; ++ } ++ ++ snprintf(table_name, sizeof(table_name), ++ "qcom,speed%d-pvs%d-bin-v%d", speed, pvs, pvs_ver); ++ ++ if (!of_find_property(np, table_name, &len)) ++ return -EINVAL; ++ ++ len /= sizeof(u32); ++ if (len % cols || len == 0) ++ return -EINVAL; ++ ++ rows = len / cols; ++ ++ for (i = 0, k = 0; i < rows; i++) { ++ u32 freq, volt; ++ ++ of_property_read_u32_index(np, table_name, k++, &freq); ++ of_property_read_u32_index(np, table_name, k++, &volt); ++ while (k % cols) ++ k++; /* Skip uA entries if present */ ++ for (cpu = 0; cpu < num_possible_cpus(); cpu++) { ++ dev = get_cpu_device(cpu); ++ if (!dev) ++ return -ENODEV; ++ if (dev_pm_opp_add(dev, freq, volt)) ++ pr_warn("failed to add OPP %u\n", freq); ++ } ++ } ++ ++ return 0; ++} ++ ++static int __init qcom_cpufreq_driver_init(void) ++{ ++ struct cpufreq_dt_platform_data pdata = { .independent_clocks = true }; ++ struct platform_device_info devinfo = { ++ .name = "cpufreq-dt", ++ .data = &pdata, ++ .size_data = sizeof(pdata), ++ }; ++ struct device *cpu_dev; ++ struct device_node *np; ++ int ret; ++ ++ cpu_dev = get_cpu_device(0); ++ if (!cpu_dev) ++ return -ENODEV; ++ ++ np = of_node_get(cpu_dev->of_node); ++ if (!np) ++ return -ENOENT; ++ ++ if (!of_device_is_compatible(np, "qcom,krait")) { ++ of_node_put(np); ++ return -ENODEV; ++ } ++ of_node_put(np); ++ ++ ret = qcom_cpufreq_populate_opps(); ++ if (ret) ++ return ret; ++ ++ return PTR_ERR_OR_ZERO(platform_device_register_full(&devinfo)); ++} ++module_init(qcom_cpufreq_driver_init); ++ ++MODULE_DESCRIPTION("Qualcomm CPUfreq driver"); ++MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ipq806x/patches-4.9/0046-cpufreq-qcom-Remove-platform-data.patch b/target/linux/ipq806x/patches-4.9/0046-cpufreq-qcom-Remove-platform-data.patch new file mode 100644 index 0000000000..aba2d190a3 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0046-cpufreq-qcom-Remove-platform-data.patch @@ -0,0 +1,46 @@ +From f3a327717565cadc8ce5c148860ce0baeb4fbe20 Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Thu, 14 Jul 2016 14:48:21 +0300 +Subject: [PATCH 46/69] cpufreq: qcom: Remove platform data + +Signed-off-by: Georgi Djakov +--- + drivers/cpufreq/qcom-cpufreq.c | 12 +++--------- + 1 file changed, 3 insertions(+), 9 deletions(-) + +--- a/drivers/cpufreq/qcom-cpufreq.c ++++ b/drivers/cpufreq/qcom-cpufreq.c +@@ -20,7 +20,6 @@ + #include + #include + #include +-#include + + static void __init get_krait_bin_format_a(int *speed, int *pvs, int *pvs_ver) + { +@@ -168,12 +167,6 @@ static int __init qcom_cpufreq_populate_ + + static int __init qcom_cpufreq_driver_init(void) + { +- struct cpufreq_dt_platform_data pdata = { .independent_clocks = true }; +- struct platform_device_info devinfo = { +- .name = "cpufreq-dt", +- .data = &pdata, +- .size_data = sizeof(pdata), +- }; + struct device *cpu_dev; + struct device_node *np; + int ret; +@@ -196,9 +189,10 @@ static int __init qcom_cpufreq_driver_in + if (ret) + return ret; + +- return PTR_ERR_OR_ZERO(platform_device_register_full(&devinfo)); ++ return PTR_ERR_OR_ZERO(platform_device_register_simple("cpufreq-dt", -1, ++ NULL, 0)); + } +-module_init(qcom_cpufreq_driver_init); ++late_initcall(qcom_cpufreq_driver_init); + + MODULE_DESCRIPTION("Qualcomm CPUfreq driver"); + MODULE_LICENSE("GPL v2"); diff --git a/target/linux/ipq806x/patches-4.9/0047-mtd-nand-Create-a-BBT-flag-to-access-bad-block-marke.patch b/target/linux/ipq806x/patches-4.9/0047-mtd-nand-Create-a-BBT-flag-to-access-bad-block-marke.patch new file mode 100644 index 0000000000..f70821e72d --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0047-mtd-nand-Create-a-BBT-flag-to-access-bad-block-marke.patch @@ -0,0 +1,72 @@ +From c7c6a0f50f9ac3620c611ce06ba1f9fafea0444e Mon Sep 17 00:00:00 2001 +From: Archit Taneja +Date: Mon, 3 Aug 2015 10:38:14 +0530 +Subject: [PATCH 47/69] mtd: nand: Create a BBT flag to access bad block + markers in raw mode + +Some controllers can access the factory bad block marker from OOB only +when they read it in raw mode. When ECC is enabled, these controllers +discard reading/writing bad block markers, preventing access to them +altogether. + +The bbt driver assumes MTD_OPS_PLACE_OOB when scanning for bad blocks. +This results in the nand driver's ecc->read_oob() op to be called, which +works with ECC enabled. + +Create a new BBT option flag that tells nand_bbt to force the mode to +MTD_OPS_RAW. This would result in the correct op being called for the +underlying nand controller driver. + +Reviewed-by: Andy Gross +Signed-off-by: Archit Taneja +--- + drivers/mtd/nand/nand_base.c | 6 +++++- + drivers/mtd/nand/nand_bbt.c | 6 +++++- + include/linux/mtd/bbm.h | 6 ++++++ + 3 files changed, 16 insertions(+), 2 deletions(-) + +--- a/drivers/mtd/nand/nand_base.c ++++ b/drivers/mtd/nand/nand_base.c +@@ -414,7 +414,11 @@ static int nand_default_block_markbad(st + } else { + ops.len = ops.ooblen = 1; + } +- ops.mode = MTD_OPS_PLACE_OOB; ++ ++ if (unlikely(chip->bbt_options & NAND_BBT_ACCESS_BBM_RAW)) ++ ops.mode = MTD_OPS_RAW; ++ else ++ ops.mode = MTD_OPS_PLACE_OOB; + + /* Write to first/last page(s) if necessary */ + if (chip->bbt_options & NAND_BBT_SCANLASTPAGE) +--- a/drivers/mtd/nand/nand_bbt.c ++++ b/drivers/mtd/nand/nand_bbt.c +@@ -420,7 +420,11 @@ static int scan_block_fast(struct mtd_in + ops.oobbuf = buf; + ops.ooboffs = 0; + ops.datbuf = NULL; +- ops.mode = MTD_OPS_PLACE_OOB; ++ ++ if (unlikely(bd->options & NAND_BBT_ACCESS_BBM_RAW)) ++ ops.mode = MTD_OPS_RAW; ++ else ++ ops.mode = MTD_OPS_PLACE_OOB; + + for (j = 0; j < numpages; j++) { + /* +--- a/include/linux/mtd/bbm.h ++++ b/include/linux/mtd/bbm.h +@@ -116,6 +116,12 @@ struct nand_bbt_descr { + #define NAND_BBT_NO_OOB_BBM 0x00080000 + + /* ++ * Force MTD_OPS_RAW mode when trying to access bad block markes from OOB. To ++ * be used by controllers which can access BBM only when ECC is disabled, i.e, ++ * when in RAW access mode ++ */ ++#define NAND_BBT_ACCESS_BBM_RAW 0x00100000 ++/* + * Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr + * was allocated dynamicaly and must be freed in nand_release(). Has no meaning + * in nand_chip.bbt_options. diff --git a/target/linux/ipq806x/patches-4.9/0048-PM-OPP-HACK-Allow-to-set-regulator-without-opp_list.patch b/target/linux/ipq806x/patches-4.9/0048-PM-OPP-HACK-Allow-to-set-regulator-without-opp_list.patch new file mode 100644 index 0000000000..da9c0dbef2 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0048-PM-OPP-HACK-Allow-to-set-regulator-without-opp_list.patch @@ -0,0 +1,27 @@ +From 5c294df1715d673f94f3b0a6e1ea3a426ca35e6e Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Thu, 28 Apr 2016 16:20:12 +0300 +Subject: [PATCH 48/69] PM / OPP: HACK: Allow to set regulator without opp_list + +Signed-off-by: Georgi Djakov +--- + drivers/base/power/opp/core.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/base/power/opp/core.c ++++ b/drivers/base/power/opp/core.c +@@ -1339,12 +1339,13 @@ struct opp_table *dev_pm_opp_set_regulat + ret = -ENOMEM; + goto unlock; + } +- ++#if 0 + /* This should be called before OPPs are initialized */ + if (WARN_ON(!list_empty(&opp_table->opp_list))) { + ret = -EBUSY; + goto err; + } ++#endif + + /* Already have a regulator set */ + if (WARN_ON(!IS_ERR(opp_table->regulator))) { diff --git a/target/linux/ipq806x/patches-4.9/0049-PM-OPP-Support-adjusting-OPP-voltages-at-runtime.patch b/target/linux/ipq806x/patches-4.9/0049-PM-OPP-Support-adjusting-OPP-voltages-at-runtime.patch new file mode 100644 index 0000000000..e2a4eede82 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0049-PM-OPP-Support-adjusting-OPP-voltages-at-runtime.patch @@ -0,0 +1,147 @@ +From c949f08cf20fe82971fbdb4015daa38210da492e Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 18 Sep 2015 17:52:06 -0700 +Subject: [PATCH 49/69] PM / OPP: Support adjusting OPP voltages at runtime + +On some SoCs the Adaptive Voltage Scaling (AVS) technique is +employed to optimize the operating voltage of a device. At a +given frequency, the hardware monitors dynamic factors and either +makes a suggestion for how much to adjust a voltage for the +current frequency, or it automatically adjusts the voltage +without software intervention. Add an API to the OPP library for +the former case, so that AVS type devices can update the voltages +for an OPP when the hardware determines the voltage should +change. The assumption is that drivers like CPUfreq or devfreq +will register for the OPP notifiers and adjust the voltage +according to suggestions that AVS makes. + +Cc: Nishanth Menon +Acked-by: Viresh Kumar +Signed-off-by: Stephen Boyd +Acked-by: Viresh Kumar +Signed-off-by: Georgi Djakov +--- + drivers/base/power/opp/core.c | 77 +++++++++++++++++++++++++++++++++++++++++++ + include/linux/pm_opp.h | 11 +++++++ + 2 files changed, 88 insertions(+) + +--- a/drivers/base/power/opp/core.c ++++ b/drivers/base/power/opp/core.c +@@ -1521,6 +1521,83 @@ unlock: + } + + /** ++ * dev_pm_opp_adjust_voltage() - helper to change the voltage of an OPP ++ * @dev: device for which we do this operation ++ * @freq: OPP frequency to adjust voltage of ++ * @u_volt: new OPP voltage ++ * ++ * Change the voltage of an OPP with an RCU operation. ++ * ++ * Return: -EINVAL for bad pointers, -ENOMEM if no memory available for the ++ * copy operation, returns 0 if no modifcation was done OR modification was ++ * successful. ++ * ++ * Locking: The internal device_opp and opp structures are RCU protected. ++ * Hence this function internally uses RCU updater strategy with mutex locks to ++ * keep the integrity of the internal data structures. Callers should ensure ++ * that this function is *NOT* called under RCU protection or in contexts where ++ * mutex locking or synchronize_rcu() blocking calls cannot be used. ++ */ ++int dev_pm_opp_adjust_voltage(struct device *dev, unsigned long freq, ++ unsigned long u_volt) ++{ ++ struct opp_table *opp_table; ++ struct dev_pm_opp *new_opp, *tmp_opp, *opp = ERR_PTR(-ENODEV); ++ int r = 0; ++ ++ /* keep the node allocated */ ++ new_opp = kmalloc(sizeof(*new_opp), GFP_KERNEL); ++ if (!new_opp) ++ return -ENOMEM; ++ ++ mutex_lock(&opp_table_lock); ++ ++ /* Find the opp_table */ ++ opp_table = _find_opp_table(dev); ++ if (IS_ERR(opp_table)) { ++ r = PTR_ERR(opp_table); ++ dev_warn(dev, "%s: Device OPP not found (%d)\n", __func__, r); ++ goto unlock; ++ } ++ ++ /* Do we have the frequency? */ ++ list_for_each_entry(tmp_opp, &opp_table->opp_list, node) { ++ if (tmp_opp->rate == freq) { ++ opp = tmp_opp; ++ break; ++ } ++ } ++ if (IS_ERR(opp)) { ++ r = PTR_ERR(opp); ++ goto unlock; ++ } ++ ++ /* Is update really needed? */ ++ if (opp->u_volt == u_volt) ++ goto unlock; ++ /* copy the old data over */ ++ *new_opp = *opp; ++ ++ /* plug in new node */ ++ new_opp->u_volt = u_volt; ++ ++ list_replace_rcu(&opp->node, &new_opp->node); ++ mutex_unlock(&opp_table_lock); ++ call_srcu(&opp_table->srcu_head.srcu, &opp->rcu_head, _kfree_opp_rcu); ++ ++ /* Notify the change of the OPP */ ++ srcu_notifier_call_chain(&opp_table->srcu_head, OPP_EVENT_ADJUST_VOLTAGE, ++ new_opp); ++ ++ return 0; ++ ++unlock: ++ mutex_unlock(&opp_table_lock); ++ kfree(new_opp); ++ return r; ++} ++ ++/** + * dev_pm_opp_enable() - Enable a specific OPP + * @dev: device for which we do this operation + * @freq: OPP frequency to enable +--- a/include/linux/pm_opp.h ++++ b/include/linux/pm_opp.h +@@ -23,6 +23,7 @@ struct opp_table; + + enum dev_pm_opp_event { + OPP_EVENT_ADD, OPP_EVENT_REMOVE, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE, ++ OPP_EVENT_ADJUST_VOLTAGE, + }; + + #if defined(CONFIG_PM_OPP) +@@ -53,6 +54,9 @@ int dev_pm_opp_add(struct device *dev, u + unsigned long u_volt); + void dev_pm_opp_remove(struct device *dev, unsigned long freq); + ++int dev_pm_opp_adjust_voltage(struct device *dev, unsigned long freq, ++ unsigned long u_volt); ++ + int dev_pm_opp_enable(struct device *dev, unsigned long freq); + + int dev_pm_opp_disable(struct device *dev, unsigned long freq); +@@ -139,6 +143,13 @@ static inline void dev_pm_opp_remove(str + { + } + ++static inline int ++dev_pm_opp_adjust_voltage(struct device *dev, unsigned long freq, ++ unsigned long u_volt) ++{ ++ return 0; ++} ++ + static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq) + { + return 0; diff --git a/target/linux/ipq806x/patches-4.9/0050-OPP-Allow-notifiers-to-call-dev_pm_opp_get_-voltage-.patch b/target/linux/ipq806x/patches-4.9/0050-OPP-Allow-notifiers-to-call-dev_pm_opp_get_-voltage-.patch new file mode 100644 index 0000000000..7b41157fd6 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0050-OPP-Allow-notifiers-to-call-dev_pm_opp_get_-voltage-.patch @@ -0,0 +1,107 @@ +From 4a17bbfcf72c94b37079e39a7c1e1e8653f7fe92 Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 18 Sep 2015 17:52:07 -0700 +Subject: [PATCH 50/69] OPP: Allow notifiers to call dev_pm_opp_get_{voltage, + freq} RCU-free + +We pass the dev_pm_opp structure to OPP notifiers but the users +of the notifier need to surround calls to dev_pm_opp_get_*() with +RCU read locks to avoid lockdep warnings. The notifier is already +called with the dev_opp's srcu lock held, so it should be safe to +assume the devm_pm_opp structure is already protected inside the +notifier. Update the lockdep check for this. + +Cc: Krzysztof Kozlowski +Signed-off-by: Stephen Boyd +Acked-by: Viresh Kumar +Signed-off-by: Georgi Djakov +--- + drivers/base/power/opp/core.c | 19 ++++++++++--------- + 1 file changed, 10 insertions(+), 9 deletions(-) + +--- a/drivers/base/power/opp/core.c ++++ b/drivers/base/power/opp/core.c +@@ -32,9 +32,10 @@ LIST_HEAD(opp_tables); + /* Lock to allow exclusive modification to the device and opp lists */ + DEFINE_MUTEX(opp_table_lock); + +-#define opp_rcu_lockdep_assert() \ ++#define opp_rcu_lockdep_assert(s) \ + do { \ + RCU_LOCKDEP_WARN(!rcu_read_lock_held() && \ ++ !(s && srcu_read_lock_held(s)) && \ + !lockdep_is_held(&opp_table_lock), \ + "Missing rcu_read_lock() or " \ + "opp_table_lock protection"); \ +@@ -72,7 +73,7 @@ struct opp_table *_find_opp_table(struct + { + struct opp_table *opp_table; + +- opp_rcu_lockdep_assert(); ++ opp_rcu_lockdep_assert(NULL); + + if (IS_ERR_OR_NULL(dev)) { + pr_err("%s: Invalid parameters\n", __func__); +@@ -106,7 +107,7 @@ unsigned long dev_pm_opp_get_voltage(str + struct dev_pm_opp *tmp_opp; + unsigned long v = 0; + +- opp_rcu_lockdep_assert(); ++ opp_rcu_lockdep_assert(NULL); + + tmp_opp = rcu_dereference(opp); + if (IS_ERR_OR_NULL(tmp_opp)) +@@ -138,7 +139,7 @@ unsigned long dev_pm_opp_get_freq(struct + struct dev_pm_opp *tmp_opp; + unsigned long f = 0; + +- opp_rcu_lockdep_assert(); ++ opp_rcu_lockdep_assert(NULL); + + tmp_opp = rcu_dereference(opp); + if (IS_ERR_OR_NULL(tmp_opp) || !tmp_opp->available) +@@ -172,7 +173,7 @@ bool dev_pm_opp_is_turbo(struct dev_pm_o + { + struct dev_pm_opp *tmp_opp; + +- opp_rcu_lockdep_assert(); ++ opp_rcu_lockdep_assert(NULL); + + tmp_opp = rcu_dereference(opp); + if (IS_ERR_OR_NULL(tmp_opp) || !tmp_opp->available) { +@@ -300,7 +301,7 @@ struct dev_pm_opp *dev_pm_opp_get_suspen + { + struct opp_table *opp_table; + +- opp_rcu_lockdep_assert(); ++ opp_rcu_lockdep_assert(NULL); + + opp_table = _find_opp_table(dev); + if (IS_ERR(opp_table) || !opp_table->suspend_opp || +@@ -380,7 +381,7 @@ struct dev_pm_opp *dev_pm_opp_find_freq_ + struct opp_table *opp_table; + struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); + +- opp_rcu_lockdep_assert(); ++ opp_rcu_lockdep_assert(NULL); + + opp_table = _find_opp_table(dev); + if (IS_ERR(opp_table)) { +@@ -444,7 +445,7 @@ struct dev_pm_opp *dev_pm_opp_find_freq_ + { + struct opp_table *opp_table; + +- opp_rcu_lockdep_assert(); ++ opp_rcu_lockdep_assert(NULL); + + if (!dev || !freq) { + dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq); +@@ -486,7 +487,7 @@ struct dev_pm_opp *dev_pm_opp_find_freq_ + struct opp_table *opp_table; + struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); + +- opp_rcu_lockdep_assert(); ++ opp_rcu_lockdep_assert(NULL); + + if (!dev || !freq) { + dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq); diff --git a/target/linux/ipq806x/patches-4.9/0051-PM-OPP-Add-a-helper-to-get-an-opp-regulator-for-devi.patch b/target/linux/ipq806x/patches-4.9/0051-PM-OPP-Add-a-helper-to-get-an-opp-regulator-for-devi.patch new file mode 100644 index 0000000000..fc1a36efc0 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0051-PM-OPP-Add-a-helper-to-get-an-opp-regulator-for-devi.patch @@ -0,0 +1,52 @@ +From d06ca5e7a3cf726f5be5ffd96e93ccd798b8c09a Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Thu, 12 May 2016 14:41:33 +0300 +Subject: [PATCH 51/69] PM / OPP: Add a helper to get an opp regulator for + device + +Signed-off-by: Georgi Djakov +--- + drivers/base/power/opp/core.c | 21 +++++++++++++++++++++ + include/linux/pm_opp.h | 1 + + 2 files changed, 22 insertions(+) + +--- a/drivers/base/power/opp/core.c ++++ b/drivers/base/power/opp/core.c +@@ -151,6 +151,27 @@ unsigned long dev_pm_opp_get_freq(struct + } + EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq); + ++struct regulator *dev_pm_opp_get_regulator(struct device *dev) ++{ ++ struct opp_table *opp_table; ++ struct regulator *reg; ++ ++ rcu_read_lock(); ++ ++ opp_table = _find_opp_table(dev); ++ if (IS_ERR(opp_table)) { ++ rcu_read_unlock(); ++ return ERR_CAST(opp_table); ++ } ++ ++ reg = opp_table->regulator; ++ ++ rcu_read_unlock(); ++ ++ return reg; ++} ++EXPORT_SYMBOL_GPL(dev_pm_opp_get_regulator); ++ + /** + * dev_pm_opp_is_turbo() - Returns if opp is turbo OPP or not + * @opp: opp for which turbo mode is being verified +--- a/include/linux/pm_opp.h ++++ b/include/linux/pm_opp.h +@@ -31,6 +31,7 @@ enum dev_pm_opp_event { + unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp); + + unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp); ++struct regulator *dev_pm_opp_get_regulator(struct device *dev); + + bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp); + diff --git a/target/linux/ipq806x/patches-4.9/0052-PM-OPP-Update-the-voltage-tolerance-when-adjusting-t.patch b/target/linux/ipq806x/patches-4.9/0052-PM-OPP-Update-the-voltage-tolerance-when-adjusting-t.patch new file mode 100644 index 0000000000..9065911d51 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0052-PM-OPP-Update-the-voltage-tolerance-when-adjusting-t.patch @@ -0,0 +1,38 @@ +From 4533c285c2aedce6d4434d7b877066de3b1ecb33 Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Thu, 25 Aug 2016 18:43:35 +0300 +Subject: [PATCH 52/69] PM / OPP: Update the voltage tolerance when adjusting + the OPP + +When the voltage is adjusted, the voltage tolerance is not updated. +This can lead to situations where the voltage min value is greater +than the voltage max value. The final result is triggering a BUG() +in the regulator core. +Fix this by updating the voltage tolerance values too. + +Signed-off-by: Georgi Djakov +--- + drivers/base/power/opp/core.c | 5 +++++ + 1 file changed, 5 insertions(+) + +--- a/drivers/base/power/opp/core.c ++++ b/drivers/base/power/opp/core.c +@@ -1566,6 +1566,7 @@ int dev_pm_opp_adjust_voltage(struct dev + struct opp_table *opp_table; + struct dev_pm_opp *new_opp, *tmp_opp, *opp = ERR_PTR(-ENODEV); + int r = 0; ++ unsigned long tol; + + /* keep the node allocated */ + new_opp = kmalloc(sizeof(*new_opp), GFP_KERNEL); +@@ -1602,6 +1603,10 @@ int dev_pm_opp_adjust_voltage(struct dev + + /* plug in new node */ + new_opp->u_volt = u_volt; ++ tol = u_volt * opp_table->voltage_tolerance_v1 / 100; ++ new_opp->u_volt = u_volt; ++ new_opp->u_volt_min = u_volt - tol; ++ new_opp->u_volt_max = u_volt + tol; + + list_replace_rcu(&opp->node, &new_opp->node); + mutex_unlock(&opp_table_lock); diff --git a/target/linux/ipq806x/patches-4.9/0053-regulator-add-smb208-support.patch b/target/linux/ipq806x/patches-4.9/0053-regulator-add-smb208-support.patch new file mode 100644 index 0000000000..0d2862c609 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0053-regulator-add-smb208-support.patch @@ -0,0 +1,55 @@ +From ef10381ca4d01848ebedb4afb2c78feb8052f103 Mon Sep 17 00:00:00 2001 +From: Adrian Panella +Date: Thu, 9 Mar 2017 08:26:54 +0100 +Subject: [PATCH 53/69] regulator: add smb208 support + +Signed-off-by: Adrian Panella +--- + Documentation/devicetree/bindings/mfd/qcom-rpm.txt | 4 ++++ + drivers/regulator/qcom_rpm-regulator.c | 9 +++++++++ + 2 files changed, 13 insertions(+) + +--- a/Documentation/devicetree/bindings/mfd/qcom-rpm.txt ++++ b/Documentation/devicetree/bindings/mfd/qcom-rpm.txt +@@ -61,6 +61,7 @@ Regulator nodes are identified by their + "qcom,rpm-pm8901-regulators" + "qcom,rpm-pm8921-regulators" + "qcom,rpm-pm8018-regulators" ++ "qcom,rpm-smb208-regulators" + + - vdd_l0_l1_lvs-supply: + - vdd_l2_l11_l12-supply: +@@ -171,6 +172,9 @@ pm8018: + s1, s2, s3, s4, s5, , l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, + l12, l14, lvs1 + ++smb208: ++ s1a, s1b, s2a, s2b ++ + The content of each sub-node is defined by the standard binding for regulators - + see regulator.txt - with additional custom properties described below: + +--- a/drivers/regulator/qcom_rpm-regulator.c ++++ b/drivers/regulator/qcom_rpm-regulator.c +@@ -933,12 +933,21 @@ static const struct rpm_regulator_data r + { } + }; + ++static const struct rpm_regulator_data rpm_smb208_regulators[] = { ++ { "s1a", QCOM_RPM_SMB208_S1a, &smb208_smps, "vin_s1a" }, ++ { "s1b", QCOM_RPM_SMB208_S1b, &smb208_smps, "vin_s1b" }, ++ { "s2a", QCOM_RPM_SMB208_S2a, &smb208_smps, "vin_s2a" }, ++ { "s2b", QCOM_RPM_SMB208_S2b, &smb208_smps, "vin_s2b" }, ++ { } ++}; ++ + static const struct of_device_id rpm_of_match[] = { + { .compatible = "qcom,rpm-pm8018-regulators", + .data = &rpm_pm8018_regulators }, + { .compatible = "qcom,rpm-pm8058-regulators", .data = &rpm_pm8058_regulators }, + { .compatible = "qcom,rpm-pm8901-regulators", .data = &rpm_pm8901_regulators }, + { .compatible = "qcom,rpm-pm8921-regulators", .data = &rpm_pm8921_regulators }, ++ { .compatible = "qcom,rpm-smb208-regulators", .data = &rpm_smb208_regulators }, + { } + }; + MODULE_DEVICE_TABLE(of, rpm_of_match); diff --git a/target/linux/ipq806x/patches-4.9/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch b/target/linux/ipq806x/patches-4.9/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch new file mode 100644 index 0000000000..8c1b75a1ce --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0054-cpufreq-dt-Handle-OPP-voltage-adjust-events.patch @@ -0,0 +1,144 @@ +From 10577f74c35bd395951d1b2382c8d821089b5745 Mon Sep 17 00:00:00 2001 +From: Stephen Boyd +Date: Fri, 18 Sep 2015 17:52:08 -0700 +Subject: [PATCH 54/69] cpufreq-dt: Handle OPP voltage adjust events + +On some SoCs the Adaptive Voltage Scaling (AVS) technique is +employed to optimize the operating voltage of a device. At a +given frequency, the hardware monitors dynamic factors and either +makes a suggestion for how much to adjust a voltage for the +current frequency, or it automatically adjusts the voltage +without software intervention. + +In the former case, an AVS driver will call +dev_pm_opp_modify_voltage() and update the voltage for the +particular OPP the CPUs are using. Add an OPP notifier to +cpufreq-dt so that we can adjust the voltage of the CPU when AVS +updates the OPP. + +Signed-off-by: Stephen Boyd +Acked-by: Viresh Kumar +Signed-off-by: Georgi Djakov +--- + drivers/cpufreq/cpufreq-dt.c | 68 ++++++++++++++++++++++++++++++++++++++++++-- + 1 file changed, 65 insertions(+), 3 deletions(-) + +--- a/drivers/cpufreq/cpufreq-dt.c ++++ b/drivers/cpufreq/cpufreq-dt.c +@@ -32,6 +32,9 @@ struct private_data { + struct device *cpu_dev; + struct thermal_cooling_device *cdev; + const char *reg_name; ++ struct notifier_block opp_nb; ++ struct mutex lock; ++ unsigned long opp_freq; + }; + + static struct freq_attr *cpufreq_dt_attr[] = { +@@ -43,9 +46,16 @@ static struct freq_attr *cpufreq_dt_attr + static int set_target(struct cpufreq_policy *policy, unsigned int index) + { + struct private_data *priv = policy->driver_data; ++ int ret; ++ unsigned long target_freq = policy->freq_table[index].frequency * 1000; ++ ++ mutex_lock(&priv->lock); ++ ret = dev_pm_opp_set_rate(priv->cpu_dev, target_freq); ++ if (!ret) ++ priv->opp_freq = target_freq; ++ mutex_unlock(&priv->lock); + +- return dev_pm_opp_set_rate(priv->cpu_dev, +- policy->freq_table[index].frequency * 1000); ++ return ret; + } + + /* +@@ -86,6 +96,39 @@ node_put: + return name; + } + ++static int opp_notifier(struct notifier_block *nb, unsigned long event, ++ void *data) ++{ ++ struct dev_pm_opp *opp = data; ++ struct private_data *priv = container_of(nb, struct private_data, ++ opp_nb); ++ struct device *cpu_dev = priv->cpu_dev; ++ struct regulator *cpu_reg; ++ unsigned long volt, freq; ++ int ret = 0; ++ ++ if (event == OPP_EVENT_ADJUST_VOLTAGE) { ++ cpu_reg = dev_pm_opp_get_regulator(cpu_dev); ++ if (IS_ERR(cpu_reg)) { ++ ret = PTR_ERR(cpu_reg); ++ goto out; ++ } ++ volt = dev_pm_opp_get_voltage(opp); ++ freq = dev_pm_opp_get_freq(opp); ++ ++ mutex_lock(&priv->lock); ++ if (freq == priv->opp_freq) { ++ ret = regulator_set_voltage_triplet(cpu_reg, volt, volt, volt); ++ } ++ mutex_unlock(&priv->lock); ++ if (ret) ++ dev_err(cpu_dev, "failed to scale voltage: %d\n", ret); ++ } ++ ++out: ++ return notifier_from_errno(ret); ++} ++ + static int resources_available(void) + { + struct device *cpu_dev; +@@ -153,6 +196,7 @@ static int cpufreq_init(struct cpufreq_p + bool fallback = false; + const char *name; + int ret; ++ struct srcu_notifier_head *opp_srcu_head; + + cpu_dev = get_cpu_device(policy->cpu); + if (!cpu_dev) { +@@ -239,13 +283,29 @@ static int cpufreq_init(struct cpufreq_p + goto out_free_opp; + } + ++ mutex_init(&priv->lock); ++ ++ rcu_read_lock(); ++ opp_srcu_head = dev_pm_opp_get_notifier(cpu_dev); ++ if (IS_ERR(opp_srcu_head)) { ++ ret = PTR_ERR(opp_srcu_head); ++ rcu_read_unlock(); ++ goto out_free_priv; ++ } ++ ++ priv->opp_nb.notifier_call = opp_notifier; ++ ret = srcu_notifier_chain_register(opp_srcu_head, &priv->opp_nb); ++ rcu_read_unlock(); ++ if (ret) ++ goto out_free_priv; ++ + priv->reg_name = name; + priv->opp_table = opp_table; + + ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table); + if (ret) { + dev_err(cpu_dev, "failed to init cpufreq table: %d\n", ret); +- goto out_free_priv; ++ goto out_unregister_nb; + } + + priv->cpu_dev = cpu_dev; +@@ -284,6 +344,8 @@ static int cpufreq_init(struct cpufreq_p + + out_free_cpufreq_table: + dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); ++out_unregister_nb: ++ srcu_notifier_chain_unregister(opp_srcu_head, &priv->opp_nb); + out_free_priv: + kfree(priv); + out_free_opp: diff --git a/target/linux/ipq806x/patches-4.9/0055-cpufreq-dt-Add-L2-frequency-scaling-support.patch b/target/linux/ipq806x/patches-4.9/0055-cpufreq-dt-Add-L2-frequency-scaling-support.patch new file mode 100644 index 0000000000..e2d6233031 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0055-cpufreq-dt-Add-L2-frequency-scaling-support.patch @@ -0,0 +1,90 @@ +From 0759cdff49f1cf361bf503c13f7bcb33da43ab95 Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Tue, 8 Sep 2015 11:24:41 +0300 +Subject: [PATCH 55/69] cpufreq-dt: Add L2 frequency scaling support + +Signed-off-by: Georgi Djakov +--- + drivers/cpufreq/cpufreq-dt.c | 41 ++++++++++++++++++++++++++++++++++++++++- + include/linux/cpufreq.h | 2 ++ + 2 files changed, 42 insertions(+), 1 deletion(-) + +--- a/drivers/cpufreq/cpufreq-dt.c ++++ b/drivers/cpufreq/cpufreq-dt.c +@@ -48,11 +48,41 @@ static int set_target(struct cpufreq_pol + struct private_data *priv = policy->driver_data; + int ret; + unsigned long target_freq = policy->freq_table[index].frequency * 1000; ++ struct clk *l2_clk = policy->l2_clk; ++ unsigned int l2_freq; ++ unsigned long new_l2_freq = 0; + + mutex_lock(&priv->lock); + ret = dev_pm_opp_set_rate(priv->cpu_dev, target_freq); +- if (!ret) ++ ++ if (!ret) { ++ if (!IS_ERR(l2_clk) && policy->l2_rate[0] && policy->l2_rate[1] && ++ policy->l2_rate[2]) { ++ static unsigned long krait_l2[CONFIG_NR_CPUS] = { }; ++ int cpu, ret = 0; ++ ++ if (target_freq >= policy->l2_rate[2]) ++ new_l2_freq = policy->l2_rate[2]; ++ else if (target_freq >= policy->l2_rate[1]) ++ new_l2_freq = policy->l2_rate[1]; ++ else ++ new_l2_freq = policy->l2_rate[0]; ++ ++ krait_l2[policy->cpu] = new_l2_freq; ++ for_each_present_cpu(cpu) ++ new_l2_freq = max(new_l2_freq, krait_l2[cpu]); ++ ++ l2_freq = clk_get_rate(l2_clk); ++ ++ if (l2_freq != new_l2_freq) { ++ /* scale l2 with the core */ ++ ret = clk_set_rate(l2_clk, new_l2_freq); ++ } ++ } ++ + priv->opp_freq = target_freq; ++ } ++ + mutex_unlock(&priv->lock); + + return ret; +@@ -197,6 +227,8 @@ static int cpufreq_init(struct cpufreq_p + const char *name; + int ret; + struct srcu_notifier_head *opp_srcu_head; ++ struct device_node *l2_np; ++ struct clk *l2_clk = NULL; + + cpu_dev = get_cpu_device(policy->cpu); + if (!cpu_dev) { +@@ -318,6 +350,13 @@ static int cpufreq_init(struct cpufreq_p + policy->suspend_freq = dev_pm_opp_get_freq(suspend_opp) / 1000; + rcu_read_unlock(); + ++ l2_clk = clk_get(cpu_dev, "l2"); ++ if (!IS_ERR(l2_clk)) ++ policy->l2_clk = l2_clk; ++ l2_np = of_find_node_by_name(NULL, "qcom,l2"); ++ if (l2_np) ++ of_property_read_u32_array(l2_np, "qcom,l2-rates", policy->l2_rate, 3); ++ + ret = cpufreq_table_validate_and_show(policy, freq_table); + if (ret) { + dev_err(cpu_dev, "%s: invalid frequency table: %d\n", __func__, +--- a/include/linux/cpufreq.h ++++ b/include/linux/cpufreq.h +@@ -73,6 +73,8 @@ struct cpufreq_policy { + unsigned int cpu; /* cpu managing this policy, must be online */ + + struct clk *clk; ++ struct clk *l2_clk; /* L2 clock */ ++ unsigned int l2_rate[3]; /* L2 bus clock rate thresholds */ + struct cpufreq_cpuinfo cpuinfo;/* see above */ + + unsigned int min; /* in kHz */ diff --git a/target/linux/ipq806x/patches-4.9/0056-cpufreq-dt-Add-missing-rcu-locks.patch b/target/linux/ipq806x/patches-4.9/0056-cpufreq-dt-Add-missing-rcu-locks.patch new file mode 100644 index 0000000000..c0eb2eb3cd --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0056-cpufreq-dt-Add-missing-rcu-locks.patch @@ -0,0 +1,23 @@ +From 001a8dcb56ced58c518aaa10a4f0ba5e878705b6 Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Tue, 17 May 2016 16:15:43 +0300 +Subject: [PATCH 56/69] cpufreq-dt: Add missing rcu locks + +Signed-off-by: Georgi Djakov +--- + drivers/cpufreq/cpufreq-dt.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/drivers/cpufreq/cpufreq-dt.c ++++ b/drivers/cpufreq/cpufreq-dt.c +@@ -143,8 +143,10 @@ static int opp_notifier(struct notifier_ + ret = PTR_ERR(cpu_reg); + goto out; + } ++ rcu_read_lock(); + volt = dev_pm_opp_get_voltage(opp); + freq = dev_pm_opp_get_freq(opp); ++ rcu_read_unlock(); + + mutex_lock(&priv->lock); + if (freq == priv->opp_freq) { diff --git a/target/linux/ipq806x/patches-4.9/0057-clk-qcom-Add-regmap-mux-div-clocks-support.patch b/target/linux/ipq806x/patches-4.9/0057-clk-qcom-Add-regmap-mux-div-clocks-support.patch new file mode 100644 index 0000000000..c5cdc79300 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0057-clk-qcom-Add-regmap-mux-div-clocks-support.patch @@ -0,0 +1,372 @@ +From f72c5aa18281c44945fea6181d0d816a7605505c Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Wed, 18 Mar 2015 17:23:29 +0200 +Subject: [PATCH 57/69] clk: qcom: Add regmap mux-div clocks support + +Add support for hardware that can switch both parent clocks and divider +at the same time. This avoids generating intermediate frequencies from +either the old parent clock and new divider or new parent clock and +old divider combinations. + +Signed-off-by: Georgi Djakov +--- + drivers/clk/qcom/Makefile | 1 + + drivers/clk/qcom/clk-regmap-mux-div.c | 272 ++++++++++++++++++++++++++++++++++ + drivers/clk/qcom/clk-regmap-mux-div.h | 65 ++++++++ + 3 files changed, 338 insertions(+) + create mode 100644 drivers/clk/qcom/clk-regmap-mux-div.c + create mode 100644 drivers/clk/qcom/clk-regmap-mux-div.h + +--- a/drivers/clk/qcom/Makefile ++++ b/drivers/clk/qcom/Makefile +@@ -9,6 +9,7 @@ clk-qcom-y += clk-rcg2.o + clk-qcom-y += clk-branch.o + clk-qcom-y += clk-regmap-divider.o + clk-qcom-y += clk-regmap-mux.o ++clk-qcom-y += clk-regmap-mux-div.o + clk-qcom-$(CONFIG_KRAIT_CLOCKS) += clk-krait.o + clk-qcom-y += clk-hfpll.o + clk-qcom-y += reset.o +--- /dev/null ++++ b/drivers/clk/qcom/clk-regmap-mux-div.c +@@ -0,0 +1,272 @@ ++/* ++ * Copyright (c) 2015, Linaro Limited ++ * Copyright (c) 2014, The Linux Foundation. All rights reserved. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++ ++#include "clk-regmap-mux-div.h" ++ ++#define CMD_RCGR 0x0 ++#define CMD_RCGR_UPDATE BIT(0) ++#define CMD_RCGR_DIRTY_CFG BIT(4) ++#define CMD_RCGR_ROOT_OFF BIT(31) ++#define CFG_RCGR 0x4 ++ ++#define to_clk_regmap_mux_div(_hw) \ ++ container_of(to_clk_regmap(_hw), struct clk_regmap_mux_div, clkr) ++ ++int __mux_div_set_src_div(struct clk_regmap_mux_div *md, u32 src, u32 div) ++{ ++ int ret, count; ++ u32 val, mask; ++ const char *name = clk_hw_get_name(&md->clkr.hw); ++ ++ val = (div << md->hid_shift) | (src << md->src_shift); ++ mask = ((BIT(md->hid_width) - 1) << md->hid_shift) | ++ ((BIT(md->src_width) - 1) << md->src_shift); ++ ++ ret = regmap_update_bits(md->clkr.regmap, CFG_RCGR + md->reg_offset, ++ mask, val); ++ if (ret) ++ return ret; ++ ++ ret = regmap_update_bits(md->clkr.regmap, CMD_RCGR + md->reg_offset, ++ CMD_RCGR_UPDATE, CMD_RCGR_UPDATE); ++ if (ret) ++ return ret; ++ ++ /* Wait for update to take effect */ ++ for (count = 500; count > 0; count--) { ++ ret = regmap_read(md->clkr.regmap, CMD_RCGR + md->reg_offset, ++ &val); ++ if (ret) ++ return ret; ++ if (!(val & CMD_RCGR_UPDATE)) ++ return 0; ++ udelay(1); ++ } ++ ++ pr_err("%s: RCG did not update its configuration", name); ++ return -EBUSY; ++} ++ ++static void __mux_div_get_src_div(struct clk_regmap_mux_div *md, u32 *src, ++ u32 *div) ++{ ++ u32 val, __div, __src; ++ const char *name = clk_hw_get_name(&md->clkr.hw); ++ ++ regmap_read(md->clkr.regmap, CMD_RCGR + md->reg_offset, &val); ++ ++ if (val & CMD_RCGR_DIRTY_CFG) { ++ pr_err("%s: RCG configuration is pending\n", name); ++ return; ++ } ++ ++ regmap_read(md->clkr.regmap, CFG_RCGR + md->reg_offset, &val); ++ __src = (val >> md->src_shift); ++ __src &= BIT(md->src_width) - 1; ++ *src = __src; ++ ++ __div = (val >> md->hid_shift); ++ __div &= BIT(md->hid_width) - 1; ++ *div = __div; ++} ++ ++static int mux_div_enable(struct clk_hw *hw) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ ++ return __mux_div_set_src_div(md, md->src, md->div); ++} ++ ++static inline bool is_better_rate(unsigned long req, unsigned long best, ++ unsigned long new) ++{ ++ return (req <= new && new < best) || (best < req && best < new); ++} ++ ++static int mux_div_determine_rate(struct clk_hw *hw, ++ struct clk_rate_request *req) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ unsigned int i, div, max_div; ++ unsigned long actual_rate, best_rate = 0; ++ unsigned long req_rate = req->rate; ++ ++ for (i = 0; i < clk_hw_get_num_parents(hw); i++) { ++ struct clk_hw *parent = clk_hw_get_parent_by_index(hw, i); ++ unsigned long parent_rate = clk_hw_get_rate(parent); ++ ++ max_div = BIT(md->hid_width) - 1; ++ for (div = 1; div < max_div; div++) { ++ parent_rate = mult_frac(req_rate, div, 2); ++ parent_rate = clk_hw_round_rate(parent, parent_rate); ++ actual_rate = mult_frac(parent_rate, 2, div); ++ ++ if (is_better_rate(req_rate, best_rate, actual_rate)) { ++ best_rate = actual_rate; ++ req->rate = best_rate; ++ req->best_parent_rate = parent_rate; ++ req->best_parent_hw = parent; ++ } ++ ++ if (actual_rate < req_rate || best_rate <= req_rate) ++ break; ++ } ++ } ++ ++ if (!best_rate) ++ return -EINVAL; ++ ++ return 0; ++} ++ ++static int __mux_div_set_rate_and_parent(struct clk_hw *hw, unsigned long rate, ++ unsigned long prate, u32 src) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ int ret; ++ u32 div, max_div, best_src = 0, best_div = 0; ++ unsigned int i; ++ unsigned long actual_rate, best_rate = 0; ++ ++ for (i = 0; i < clk_hw_get_num_parents(hw); i++) { ++ struct clk_hw *parent = clk_hw_get_parent_by_index(hw, i); ++ unsigned long parent_rate = clk_hw_get_rate(parent); ++ ++ max_div = BIT(md->hid_width) - 1; ++ for (div = 1; div < max_div; div++) { ++ parent_rate = mult_frac(rate, div, 2); ++ parent_rate = clk_hw_round_rate(parent, parent_rate); ++ actual_rate = mult_frac(parent_rate, 2, div); ++ ++ if (is_better_rate(rate, best_rate, actual_rate)) { ++ best_rate = actual_rate; ++ best_src = md->parent_map[i].cfg; ++ best_div = div - 1; ++ } ++ ++ if (actual_rate < rate || best_rate <= rate) ++ break; ++ } ++ } ++ ++ ret = __mux_div_set_src_div(md, best_src, best_div); ++ if (!ret) { ++ md->div = best_div; ++ md->src = best_src; ++ } ++ ++ return ret; ++} ++ ++static u8 mux_div_get_parent(struct clk_hw *hw) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ const char *name = clk_hw_get_name(hw); ++ u32 i, div, src = 0; ++ ++ __mux_div_get_src_div(md, &src, &div); ++ ++ for (i = 0; i < clk_hw_get_num_parents(hw); i++) ++ if (src == md->parent_map[i].cfg) ++ return i; ++ ++ pr_err("%s: Can't find parent with src %d\n", name, src); ++ return 0; ++} ++ ++static int mux_div_set_parent(struct clk_hw *hw, u8 index) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ ++ return __mux_div_set_src_div(md, md->parent_map[index].cfg, md->div); ++} ++ ++static int mux_div_set_rate(struct clk_hw *hw, ++ unsigned long rate, unsigned long prate) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ ++ return __mux_div_set_rate_and_parent(hw, rate, prate, md->src); ++} ++ ++static int mux_div_set_rate_and_parent(struct clk_hw *hw, unsigned long rate, ++ unsigned long prate, u8 index) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ ++ return __mux_div_set_rate_and_parent(hw, rate, prate, ++ md->parent_map[index].cfg); ++} ++ ++static unsigned long mux_div_recalc_rate(struct clk_hw *hw, unsigned long prate) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ u32 div, src; ++ int i, num_parents = clk_hw_get_num_parents(hw); ++ const char *name = clk_hw_get_name(hw); ++ ++ __mux_div_get_src_div(md, &src, &div); ++ for (i = 0; i < num_parents; i++) ++ if (src == md->parent_map[i].cfg) { ++ struct clk_hw *p = clk_hw_get_parent_by_index(hw, i); ++ unsigned long parent_rate = clk_hw_get_rate(p); ++ ++ return mult_frac(parent_rate, 2, div + 1); ++ } ++ ++ pr_err("%s: Can't find parent %d\n", name, src); ++ return 0; ++} ++ ++static struct clk_hw *mux_div_get_safe_parent(struct clk_hw *hw, ++ unsigned long *safe_freq) ++{ ++ int i; ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ ++ if (md->safe_freq) ++ *safe_freq = md->safe_freq; ++ ++ for (i = 0; i < clk_hw_get_num_parents(hw); i++) ++ if (md->safe_src == md->parent_map[i].cfg) ++ break; ++ ++ return clk_hw_get_parent_by_index(hw, i); ++} ++ ++static void mux_div_disable(struct clk_hw *hw) ++{ ++ struct clk_regmap_mux_div *md = to_clk_regmap_mux_div(hw); ++ ++ __mux_div_set_src_div(md, md->safe_src, md->safe_div); ++} ++ ++const struct clk_ops clk_regmap_mux_div_ops = { ++ .enable = mux_div_enable, ++ .disable = mux_div_disable, ++ .get_parent = mux_div_get_parent, ++ .set_parent = mux_div_set_parent, ++ .set_rate = mux_div_set_rate, ++ .set_rate_and_parent = mux_div_set_rate_and_parent, ++ .determine_rate = mux_div_determine_rate, ++ .recalc_rate = mux_div_recalc_rate, ++ .get_safe_parent = mux_div_get_safe_parent, ++}; ++EXPORT_SYMBOL_GPL(clk_regmap_mux_div_ops); +--- /dev/null ++++ b/drivers/clk/qcom/clk-regmap-mux-div.h +@@ -0,0 +1,65 @@ ++/* ++ * Copyright (c) 2015, Linaro Limited ++ * Copyright (c) 2014, The Linux Foundation. All rights reserved. ++ * ++ * This software is licensed under the terms of the GNU General Public ++ * License version 2, as published by the Free Software Foundation, and ++ * may be copied, distributed, and modified under those terms. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ */ ++ ++#ifndef __QCOM_CLK_REGMAP_MUX_DIV_H__ ++#define __QCOM_CLK_REGMAP_MUX_DIV_H__ ++ ++#include ++#include "clk-rcg.h" ++#include "clk-regmap.h" ++ ++/** ++ * struct mux_div_clk - combined mux/divider clock ++ * @reg_offset: offset of the mux/divider register ++ * @hid_width: number of bits in half integer divider ++ * @hid_shift: lowest bit of hid value field ++ * @src_width: number of bits in source select ++ * @src_shift: lowest bit of source select field ++ * @div: the divider raw configuration value ++ * @src: the mux index which will be used if the clock is enabled ++ * @safe_src: the safe source mux value we switch to, while the main PLL is ++ * reconfigured ++ * @safe_div: the safe divider value that we set, while the main PLL is ++ * reconfigured ++ * @safe_freq: When switching rates from A to B, the mux div clock will ++ * instead switch from A -> safe_freq -> B. This allows the ++ * mux_div clock to change rates while enabled, even if this ++ * behavior is not supported by the parent clocks. ++ * If changing the rate of parent A also causes the rate of ++ * parent B to change, then safe_freq must be defined. ++ * safe_freq is expected to have a source clock which is always ++ * on and runs at only one rate. ++ * @parent_map: pointer to parent_map struct ++ * @clkr: handle between common and hardware-specific interfaces ++ */ ++ ++struct clk_regmap_mux_div { ++ u32 reg_offset; ++ u32 hid_width; ++ u32 hid_shift; ++ u32 src_width; ++ u32 src_shift; ++ u32 div; ++ u32 src; ++ u32 safe_src; ++ u32 safe_div; ++ unsigned long safe_freq; ++ const struct parent_map *parent_map; ++ struct clk_regmap clkr; ++}; ++ ++extern const struct clk_ops clk_regmap_mux_div_ops; ++int __mux_div_set_src_div(struct clk_regmap_mux_div *md, u32 src, u32 div); ++ ++#endif diff --git a/target/linux/ipq806x/patches-4.9/0058-clk-qcom-Always-add-factor-clock-for-xo-clocks.patch b/target/linux/ipq806x/patches-4.9/0058-clk-qcom-Always-add-factor-clock-for-xo-clocks.patch new file mode 100644 index 0000000000..f679cf740c --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0058-clk-qcom-Always-add-factor-clock-for-xo-clocks.patch @@ -0,0 +1,38 @@ +From 6081776c1eef63e3083387bb9ec2bf7edf92428b Mon Sep 17 00:00:00 2001 +From: Georgi Djakov +Date: Wed, 2 Nov 2016 17:56:58 +0200 +Subject: [PATCH 58/69] clk: qcom: Always add factor clock for xo clocks + +Currently the RPM/RPM-SMD clock drivers do not register the xo clocks, +so we should always add factor clock. When we later add xo clocks support +into the drivers, we should update this function to skip registration. +By doing so we avoid any DT dependencies. + +Signed-off-by: Georgi Djakov +--- + drivers/clk/qcom/common.c | 15 ++++++--------- + 1 file changed, 6 insertions(+), 9 deletions(-) + +--- a/drivers/clk/qcom/common.c ++++ b/drivers/clk/qcom/common.c +@@ -153,15 +153,12 @@ int qcom_cc_register_board_clk(struct de + const char *name, unsigned long rate) + { + bool add_factor = true; +- struct device_node *node; + +- /* The RPM clock driver will add the factor clock if present */ +- if (IS_ENABLED(CONFIG_QCOM_RPMCC)) { +- node = of_find_compatible_node(NULL, NULL, "qcom,rpmcc"); +- if (of_device_is_available(node)) +- add_factor = false; +- of_node_put(node); +- } ++ /* ++ * TODO: The RPM clock driver currently does not support the xo clock. ++ * When xo is added to the RPM clock driver, we should change this ++ * function to skip registration of xo factor clocks. ++ */ + + return _qcom_cc_register_board_clk(dev, path, name, rate, add_factor); + } diff --git a/target/linux/ipq806x/patches-4.9/0059-ARM-cpuidle-Add-cpuidle-support-for-QCOM-cpus.patch b/target/linux/ipq806x/patches-4.9/0059-ARM-cpuidle-Add-cpuidle-support-for-QCOM-cpus.patch new file mode 100644 index 0000000000..b7349863f5 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0059-ARM-cpuidle-Add-cpuidle-support-for-QCOM-cpus.patch @@ -0,0 +1,29 @@ +From 04ca10340f1b4d92e849724d322a7ca225d11539 Mon Sep 17 00:00:00 2001 +From: Lina Iyer +Date: Wed, 25 Mar 2015 14:25:29 -0600 +Subject: [PATCH 59/69] ARM: cpuidle: Add cpuidle support for QCOM cpus + +Define ARM_QCOM_CPUIDLE config item to enable cpuidle support. + +Cc: Stephen Boyd +Cc: Arnd Bergmann +Cc: Kevin Hilman +Cc: Daniel Lezcano +Signed-off-by: Lina Iyer +--- + drivers/cpuidle/Kconfig.arm | 7 +++++++ + 1 file changed, 7 insertions(+) + +--- a/drivers/cpuidle/Kconfig.arm ++++ b/drivers/cpuidle/Kconfig.arm +@@ -74,3 +74,10 @@ config ARM_MVEBU_V7_CPUIDLE + depends on ARCH_MVEBU && !ARM64 + help + Select this to enable cpuidle on Armada 370, 38x and XP processors. ++ ++config ARM_QCOM_CPUIDLE ++ bool "CPU Idle Driver for QCOM processors" ++ depends on ARCH_QCOM ++ select ARM_CPUIDLE ++ help ++ Select this to enable cpuidle on QCOM processors. diff --git a/target/linux/ipq806x/patches-4.9/0060-HACK-arch-arm-force-ZRELADDR-on-arch-qcom.patch b/target/linux/ipq806x/patches-4.9/0060-HACK-arch-arm-force-ZRELADDR-on-arch-qcom.patch new file mode 100644 index 0000000000..5f04d567b6 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0060-HACK-arch-arm-force-ZRELADDR-on-arch-qcom.patch @@ -0,0 +1,62 @@ +From fa71139b55e114aa8c3c4823ff8ee7d49ee810d4 Mon Sep 17 00:00:00 2001 +From: Mathieu Olivari +Date: Wed, 29 Apr 2015 15:21:46 -0700 +Subject: [PATCH 60/69] HACK: arch: arm: force ZRELADDR on arch-qcom + +ARCH_QCOM is using the ARCH_MULTIPLATFORM option, as now recommended +on most ARM architectures. This automatically calculate ZRELADDR by +masking PHYS_OFFSET with 0xf8000000. + +However, on IPQ806x, the first ~20MB of RAM is reserved for the hardware +network accelerators, and the bootloader removes this section from the +layout passed from the ATAGS (when used). + +For newer bootloader, when DT is used, this is not a problem, we just +reserve this memory in the device tree. But if the bootloader doesn't +have DT support, then ATAGS have to be used. In this case, the ARM +decompressor will position the kernel in this low mem, which will not be +in the RAM section mapped by the bootloader, which means the kernel will +freeze in the middle of the boot process trying to map the memory. + +As a work around, this patch allows disabling AUTO_ZRELADDR when +ARCH_QCOM is selected. It makes the zImage usage possible on bootloaders +which don't support device-tree, which is the case on certain early +IPQ806x based designs. + +Signed-off-by: Mathieu Olivari +--- + arch/arm/Kconfig | 2 +- + arch/arm/Makefile | 2 ++ + arch/arm/mach-qcom/Makefile.boot | 1 + + 3 files changed, 4 insertions(+), 1 deletion(-) + create mode 100644 arch/arm/mach-qcom/Makefile.boot + +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -332,7 +332,7 @@ config ARCH_MULTIPLATFORM + depends on MMU + select ARM_HAS_SG_CHAIN + select ARM_PATCH_PHYS_VIRT +- select AUTO_ZRELADDR ++ select AUTO_ZRELADDR if !ARCH_QCOM + select CLKSRC_OF + select COMMON_CLK + select GENERIC_CLOCKEVENTS +--- a/arch/arm/Makefile ++++ b/arch/arm/Makefile +@@ -251,9 +251,11 @@ MACHINE := arch/arm/mach-$(word 1,$(mac + else + MACHINE := + endif ++ifeq ($(CONFIG_ARCH_QCOM),) + ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) + MACHINE := + endif ++endif + + machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) + platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y))) +--- /dev/null ++++ b/arch/arm/mach-qcom/Makefile.boot +@@ -0,0 +1 @@ ++zreladdr-y+= 0x42208000 diff --git a/target/linux/ipq806x/patches-4.9/0061-mtd-rootfs-conflicts-with-OpenWrt-auto-mounting.patch b/target/linux/ipq806x/patches-4.9/0061-mtd-rootfs-conflicts-with-OpenWrt-auto-mounting.patch new file mode 100644 index 0000000000..a4a957545b --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0061-mtd-rootfs-conflicts-with-OpenWrt-auto-mounting.patch @@ -0,0 +1,23 @@ +From 5001f2e1a325b68dbf225bd17f69a4d3d975cca5 Mon Sep 17 00:00:00 2001 +From: John Crispin +Date: Thu, 9 Mar 2017 09:31:44 +0100 +Subject: [PATCH 61/69] mtd: "rootfs" conflicts with OpenWrt auto mounting + +Signed-off-by: John Crispin +--- + drivers/mtd/qcom_smem_part.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/mtd/qcom_smem_part.c ++++ b/drivers/mtd/qcom_smem_part.c +@@ -189,6 +189,10 @@ static int parse_qcom_smem_partitions(st + m_part->size = le32_to_cpu(s_part->size) * (*smem_blksz); + m_part->offset = le32_to_cpu(s_part->start) * (*smem_blksz); + ++ /* "rootfs" conflicts with OpenWrt auto mounting */ ++ if (mtd_type_is_nand(master) && !strcmp(m_part->name, "rootfs")) ++ m_part->name = "ubi"; ++ + /* + * The last SMEM partition may have its size marked as + * something like 0xffffffff, which means "until the end of the diff --git a/target/linux/ipq806x/patches-4.9/0062-ipq806x-gcc-Added-the-enable-regs-and-mask-for-PRNG.patch b/target/linux/ipq806x/patches-4.9/0062-ipq806x-gcc-Added-the-enable-regs-and-mask-for-PRNG.patch new file mode 100644 index 0000000000..a3e0a1dc5d --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0062-ipq806x-gcc-Added-the-enable-regs-and-mask-for-PRNG.patch @@ -0,0 +1,25 @@ +From a16fcf911a020e46439a3bb3e702463fc3159831 Mon Sep 17 00:00:00 2001 +From: Abhishek Sahu +Date: Wed, 18 Nov 2015 12:38:56 +0530 +Subject: [PATCH 62/69] ipq806x: gcc: Added the enable regs and mask for PRNG + +kernel got hanged while reading from /dev/hwrng at the +time of PRNG clock enable + +Change-Id: I89856c7e19e6639508e6a2774304583a3ec91172 +Signed-off-by: Abhishek Sahu +--- + drivers/clk/qcom/gcc-ipq806x.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/drivers/clk/qcom/gcc-ipq806x.c ++++ b/drivers/clk/qcom/gcc-ipq806x.c +@@ -1234,6 +1234,8 @@ static struct clk_rcg prng_src = { + .parent_map = gcc_pxo_pll8_map, + }, + .clkr = { ++ .enable_reg = 0x2e80, ++ .enable_mask = BIT(11), + .hw.init = &(struct clk_init_data){ + .name = "prng_src", + .parent_names = gcc_pxo_pll8, diff --git a/target/linux/ipq806x/patches-4.9/0063-ipq806x-clk-gcc-add-tsens-child-node.patch b/target/linux/ipq806x/patches-4.9/0063-ipq806x-clk-gcc-add-tsens-child-node.patch new file mode 100644 index 0000000000..9f154aea26 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0063-ipq806x-clk-gcc-add-tsens-child-node.patch @@ -0,0 +1,46 @@ +From 3064376aa3e8dae03dc2c5c3c064e2283c4337d8 Mon Sep 17 00:00:00 2001 +From: Pavel Kubelun +Date: Tue, 22 Nov 2016 17:37:56 +0300 +Subject: [PATCH 63/69] ipq806x: clk: gcc: add tsens child node + +Thermal sensors in ipq806x are inside a Global clock controller. +Add a child node into it to be used by the TSENS driver. + +Signed-off-by: Pavel Kubelun +--- + drivers/clk/qcom/gcc-ipq806x.c | 10 +++++++++- + 1 file changed, 9 insertions(+), 1 deletion(-) + +--- a/drivers/clk/qcom/gcc-ipq806x.c ++++ b/drivers/clk/qcom/gcc-ipq806x.c +@@ -970,7 +970,7 @@ static struct clk_branch gsbi1_h_clk = { + .hw.init = &(struct clk_init_data){ + .name = "gsbi1_h_clk", + .ops = &clk_branch_ops, +-+ .flags = CLK_IGNORE_UNUSED, ++ .flags = CLK_IGNORE_UNUSED, + }, + }, + }; +@@ -3073,6 +3073,7 @@ MODULE_DEVICE_TABLE(of, gcc_ipq806x_matc + static int gcc_ipq806x_probe(struct platform_device *pdev) + { + struct device *dev = &pdev->dev; ++ struct platform_device *tsens; + struct regmap *regmap; + int ret; + +@@ -3102,6 +3103,13 @@ static int gcc_ipq806x_probe(struct plat + regmap_write(regmap, 0x3cf8, 8); + regmap_write(regmap, 0x3d18, 8); + ++ tsens = platform_device_register_data(&pdev->dev, "qcom-tsens", -1, ++ NULL, 0); ++ if (IS_ERR(tsens)) ++ return PTR_ERR(tsens); ++ ++ platform_set_drvdata(pdev, tsens); ++ + return 0; + } + diff --git a/target/linux/ipq806x/patches-4.9/0064-clk-clk-rpm-fixes.patch b/target/linux/ipq806x/patches-4.9/0064-clk-clk-rpm-fixes.patch new file mode 100644 index 0000000000..b803488a16 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0064-clk-clk-rpm-fixes.patch @@ -0,0 +1,93 @@ +From d30840e2b1cf79d90392e6051b0c0b6006d29d8b Mon Sep 17 00:00:00 2001 +From: John Crispin +Date: Thu, 9 Mar 2017 09:32:40 +0100 +Subject: [PATCH 64/69] clk: clk-rpm fixes + +Signed-off-by: John Crispin +--- + .../devicetree/bindings/clock/qcom,rpmcc.txt | 1 + + drivers/clk/qcom/clk-rpm.c | 35 ++++++++++++++++++++++ + include/dt-bindings/clock/qcom,rpmcc.h | 4 +++ + 3 files changed, 40 insertions(+) + +--- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt ++++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt +@@ -12,6 +12,7 @@ Required properties : + + "qcom,rpmcc-msm8916", "qcom,rpmcc" + "qcom,rpmcc-apq8064", "qcom,rpmcc" ++ "qcom,rpmcc-ipq806x", "qcom,rpmcc" + + - #clock-cells : shall contain 1 + +--- a/drivers/clk/qcom/clk-rpm.c ++++ b/drivers/clk/qcom/clk-rpm.c +@@ -359,6 +359,16 @@ DEFINE_CLK_RPM(apq8064, sfab_clk, sfab_a + DEFINE_CLK_RPM(apq8064, sfpb_clk, sfpb_a_clk, QCOM_RPM_SFPB_CLK); + DEFINE_CLK_RPM(apq8064, qdss_clk, qdss_a_clk, QCOM_RPM_QDSS_CLK); + ++/* ipq806x */ ++DEFINE_CLK_RPM(ipq806x, afab_clk, afab_a_clk, QCOM_RPM_APPS_FABRIC_CLK); ++DEFINE_CLK_RPM(ipq806x, cfpb_clk, cfpb_a_clk, QCOM_RPM_CFPB_CLK); ++DEFINE_CLK_RPM(ipq806x, daytona_clk, daytona_a_clk, QCOM_RPM_DAYTONA_FABRIC_CLK); ++DEFINE_CLK_RPM(ipq806x, ebi1_clk, ebi1_a_clk, QCOM_RPM_EBI1_CLK); ++DEFINE_CLK_RPM(ipq806x, sfab_clk, sfab_a_clk, QCOM_RPM_SYS_FABRIC_CLK); ++DEFINE_CLK_RPM(ipq806x, sfpb_clk, sfpb_a_clk, QCOM_RPM_SFPB_CLK); ++DEFINE_CLK_RPM(ipq806x, nss_fabric_0_clk, nss_fabric_0_a_clk, QCOM_RPM_NSS_FABRIC_0_CLK); ++DEFINE_CLK_RPM(ipq806x, nss_fabric_1_clk, nss_fabric_1_a_clk, QCOM_RPM_NSS_FABRIC_1_CLK); ++ + static struct clk_rpm *apq8064_clks[] = { + [RPM_APPS_FABRIC_CLK] = &apq8064_afab_clk, + [RPM_APPS_FABRIC_A_CLK] = &apq8064_afab_a_clk, +@@ -380,13 +390,38 @@ static struct clk_rpm *apq8064_clks[] = + [RPM_QDSS_A_CLK] = &apq8064_qdss_a_clk, + }; + ++static struct clk_rpm *ipq806x_clks[] = { ++ [RPM_APPS_FABRIC_CLK] = &ipq806x_afab_clk, ++ [RPM_APPS_FABRIC_A_CLK] = &ipq806x_afab_a_clk, ++ [RPM_CFPB_CLK] = &ipq806x_cfpb_clk, ++ [RPM_CFPB_A_CLK] = &ipq806x_cfpb_a_clk, ++ [RPM_DAYTONA_FABRIC_CLK] = &ipq806x_daytona_clk, ++ [RPM_DAYTONA_FABRIC_A_CLK] = &ipq806x_daytona_a_clk, ++ [RPM_EBI1_CLK] = &ipq806x_ebi1_clk, ++ [RPM_EBI1_A_CLK] = &ipq806x_ebi1_a_clk, ++ [RPM_SYS_FABRIC_CLK] = &ipq806x_sfab_clk, ++ [RPM_SYS_FABRIC_A_CLK] = &ipq806x_sfab_a_clk, ++ [RPM_SFPB_CLK] = &ipq806x_sfpb_clk, ++ [RPM_SFPB_A_CLK] = &ipq806x_sfpb_a_clk, ++ [RPM_NSS_FABRIC_0_CLK] = &ipq806x_nss_fabric_0_clk, ++ [RPM_NSS_FABRIC_0_A_CLK] = &ipq806x_nss_fabric_0_a_clk, ++ [RPM_NSS_FABRIC_1_CLK] = &ipq806x_nss_fabric_1_clk, ++ [RPM_NSS_FABRIC_1_A_CLK] = &ipq806x_nss_fabric_1_a_clk, ++}; ++ + static const struct rpm_clk_desc rpm_clk_apq8064 = { + .clks = apq8064_clks, + .num_clks = ARRAY_SIZE(apq8064_clks), + }; + ++static const struct rpm_clk_desc rpm_clk_ipq806x = { ++ .clks = ipq806x_clks, ++ .num_clks = ARRAY_SIZE(ipq806x_clks), ++}; ++ + static const struct of_device_id rpm_clk_match_table[] = { + { .compatible = "qcom,rpmcc-apq8064", .data = &rpm_clk_apq8064 }, ++ { .compatible = "qcom,rpmcc-ipq806x", .data = &rpm_clk_ipq806x }, + { } + }; + MODULE_DEVICE_TABLE(of, rpm_clk_match_table); +--- a/include/dt-bindings/clock/qcom,rpmcc.h ++++ b/include/dt-bindings/clock/qcom,rpmcc.h +@@ -37,6 +37,10 @@ + #define RPM_SYS_FABRIC_A_CLK 19 + #define RPM_SFPB_CLK 20 + #define RPM_SFPB_A_CLK 21 ++#define RPM_NSS_FABRIC_0_CLK 22 ++#define RPM_NSS_FABRIC_0_A_CLK 23 ++#define RPM_NSS_FABRIC_1_CLK 24 ++#define RPM_NSS_FABRIC_1_A_CLK 25 + + /* msm8916 */ + #define RPM_SMD_XO_CLK_SRC 0 diff --git a/target/linux/ipq806x/patches-4.9/0065-arm-override-compiler-flags.patch b/target/linux/ipq806x/patches-4.9/0065-arm-override-compiler-flags.patch new file mode 100644 index 0000000000..e5af7ffa2a --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0065-arm-override-compiler-flags.patch @@ -0,0 +1,21 @@ +From 4d8e29642661397a339ac3485f212c6360445421 Mon Sep 17 00:00:00 2001 +From: John Crispin +Date: Thu, 9 Mar 2017 09:33:32 +0100 +Subject: [PATCH 65/69] arm: override compiler flags + +Signed-off-by: John Crispin +--- + arch/arm/Makefile | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm/Makefile ++++ b/arch/arm/Makefile +@@ -65,7 +65,7 @@ KBUILD_CFLAGS += $(call cc-option,-fno-i + # macro, but instead defines a whole series of macros which makes + # testing for a specific architecture or later rather impossible. + arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m +-arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) ++arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 -mcpu=cortex-a15 + arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) + # Only override the compiler option if ARMv6. The ARMv6K extensions are + # always available in ARMv7 diff --git a/target/linux/ipq806x/patches-4.9/0066-GPIO-add-named-gpio-exports.patch b/target/linux/ipq806x/patches-4.9/0066-GPIO-add-named-gpio-exports.patch new file mode 100644 index 0000000000..4aa80007dd --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0066-GPIO-add-named-gpio-exports.patch @@ -0,0 +1,166 @@ +From a37b0c9113647b2120cf1a18cfc46afdb3f1fccc Mon Sep 17 00:00:00 2001 +From: John Crispin +Date: Tue, 12 Aug 2014 20:49:27 +0200 +Subject: [PATCH 66/69] GPIO: add named gpio exports + +Signed-off-by: John Crispin +--- + drivers/gpio/gpiolib-of.c | 68 +++++++++++++++++++++++++++++++++++++++++++ + drivers/gpio/gpiolib-sysfs.c | 10 ++++++- + include/asm-generic/gpio.h | 6 ++++ + include/linux/gpio/consumer.h | 8 +++++ + 4 files changed, 91 insertions(+), 1 deletion(-) + +--- a/drivers/gpio/gpiolib-of.c ++++ b/drivers/gpio/gpiolib-of.c +@@ -23,6 +23,8 @@ + #include + #include + #include ++#include ++#include + + #include "gpiolib.h" + +@@ -538,3 +540,69 @@ void of_gpiochip_remove(struct gpio_chip + gpiochip_remove_pin_ranges(chip); + of_node_put(chip->of_node); + } ++ ++static struct of_device_id gpio_export_ids[] = { ++ { .compatible = "gpio-export" }, ++ { /* sentinel */ } ++}; ++ ++static int __init of_gpio_export_probe(struct platform_device *pdev) ++{ ++ struct device_node *np = pdev->dev.of_node; ++ struct device_node *cnp; ++ u32 val; ++ int nb = 0; ++ ++ for_each_child_of_node(np, cnp) { ++ const char *name = NULL; ++ int gpio; ++ bool dmc; ++ int max_gpio = 1; ++ int i; ++ ++ of_property_read_string(cnp, "gpio-export,name", &name); ++ ++ if (!name) ++ max_gpio = of_gpio_count(cnp); ++ ++ for (i = 0; i < max_gpio; i++) { ++ unsigned flags = 0; ++ enum of_gpio_flags of_flags; ++ ++ gpio = of_get_gpio_flags(cnp, i, &of_flags); ++ ++ if (of_flags == OF_GPIO_ACTIVE_LOW) ++ flags |= GPIOF_ACTIVE_LOW; ++ ++ if (!of_property_read_u32(cnp, "gpio-export,output", &val)) ++ flags |= val ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW; ++ else ++ flags |= GPIOF_IN; ++ ++ if (devm_gpio_request_one(&pdev->dev, gpio, flags, name ? name : of_node_full_name(np))) ++ continue; ++ ++ dmc = of_property_read_bool(cnp, "gpio-export,direction_may_change"); ++ gpio_export_with_name(gpio, dmc, name); ++ nb++; ++ } ++ } ++ ++ dev_info(&pdev->dev, "%d gpio(s) exported\n", nb); ++ ++ return 0; ++} ++ ++static struct platform_driver gpio_export_driver = { ++ .driver = { ++ .name = "gpio-export", ++ .owner = THIS_MODULE, ++ .of_match_table = of_match_ptr(gpio_export_ids), ++ }, ++}; ++ ++static int __init of_gpio_export_init(void) ++{ ++ return platform_driver_probe(&gpio_export_driver, of_gpio_export_probe); ++} ++device_initcall(of_gpio_export_init); +--- a/drivers/gpio/gpiolib-sysfs.c ++++ b/drivers/gpio/gpiolib-sysfs.c +@@ -544,7 +544,7 @@ static struct class gpio_class = { + * + * Returns zero on success, else an error. + */ +-int gpiod_export(struct gpio_desc *desc, bool direction_may_change) ++int __gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name) + { + struct gpio_chip *chip; + struct gpio_device *gdev; +@@ -606,6 +606,8 @@ int gpiod_export(struct gpio_desc *desc, + offset = gpio_chip_hwgpio(desc); + if (chip->names && chip->names[offset]) + ioname = chip->names[offset]; ++ if (name) ++ ioname = name; + + dev = device_create_with_groups(&gpio_class, &gdev->dev, + MKDEV(0, 0), data, gpio_groups, +@@ -627,6 +629,12 @@ err_unlock: + gpiod_dbg(desc, "%s: status %d\n", __func__, status); + return status; + } ++EXPORT_SYMBOL_GPL(__gpiod_export); ++ ++int gpiod_export(struct gpio_desc *desc, bool direction_may_change) ++{ ++ return __gpiod_export(desc, direction_may_change, NULL); ++} + EXPORT_SYMBOL_GPL(gpiod_export); + + static int match_export(struct device *dev, const void *desc) +--- a/include/asm-generic/gpio.h ++++ b/include/asm-generic/gpio.h +@@ -126,6 +126,12 @@ static inline int gpio_export(unsigned g + return gpiod_export(gpio_to_desc(gpio), direction_may_change); + } + ++int __gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name); ++static inline int gpio_export_with_name(unsigned gpio, bool direction_may_change, const char *name) ++{ ++ return __gpiod_export(gpio_to_desc(gpio), direction_may_change, name); ++} ++ + static inline int gpio_export_link(struct device *dev, const char *name, + unsigned gpio) + { +--- a/include/linux/gpio/consumer.h ++++ b/include/linux/gpio/consumer.h +@@ -427,6 +427,7 @@ static inline struct gpio_desc *devm_get + + #if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS) + ++int _gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name); + int gpiod_export(struct gpio_desc *desc, bool direction_may_change); + int gpiod_export_link(struct device *dev, const char *name, + struct gpio_desc *desc); +@@ -434,6 +435,13 @@ void gpiod_unexport(struct gpio_desc *de + + #else /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */ + ++static inline int _gpiod_export(struct gpio_desc *desc, ++ bool direction_may_change, ++ const char *name) ++{ ++ return -ENOSYS; ++} ++ + static inline int gpiod_export(struct gpio_desc *desc, + bool direction_may_change) + { diff --git a/target/linux/ipq806x/patches-4.9/0067-generic-Mangle-bootloader-s-kernel-arguments.patch b/target/linux/ipq806x/patches-4.9/0067-generic-Mangle-bootloader-s-kernel-arguments.patch new file mode 100644 index 0000000000..123d353cfd --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0067-generic-Mangle-bootloader-s-kernel-arguments.patch @@ -0,0 +1,189 @@ +From 71270226b14733a4b1f2cde58ea9265caa50b38d Mon Sep 17 00:00:00 2001 +From: Adrian Panella +Date: Thu, 9 Mar 2017 09:37:17 +0100 +Subject: [PATCH 67/69] generic: Mangle bootloader's kernel arguments + +The command-line arguments provided by the boot loader will be +appended to a new device tree property: bootloader-args. +If there is a property "append-rootblock" in DT under /chosen +and a root= option in bootloaders command line it will be parsed +and added to DT bootargs with the form: XX. +Only command line ATAG will be processed, the rest of the ATAGs +sent by bootloader will be ignored. +This is usefull in dual boot systems, to get the current root partition +without afecting the rest of the system. + +Signed-off-by: Adrian Panella +--- + arch/arm/Kconfig | 11 +++++ + arch/arm/boot/compressed/atags_to_fdt.c | 72 ++++++++++++++++++++++++++++++++- + init/main.c | 16 ++++++++ + 3 files changed, 98 insertions(+), 1 deletion(-) + +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -1949,6 +1949,17 @@ config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEN + The command-line arguments provided by the boot loader will be + appended to the the device tree bootargs property. + ++config ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE ++ bool "Append rootblock parsing bootloader's kernel arguments" ++ help ++ The command-line arguments provided by the boot loader will be ++ appended to a new device tree property: bootloader-args. ++ If there is a property "append-rootblock" in DT under /chosen ++ and a root= option in bootloaders command line it will be parsed ++ and added to DT bootargs with the form: XX. ++ Only command line ATAG will be processed, the rest of the ATAGs ++ sent by bootloader will be ignored. ++ + endchoice + + config CMDLINE +--- a/arch/arm/boot/compressed/atags_to_fdt.c ++++ b/arch/arm/boot/compressed/atags_to_fdt.c +@@ -3,6 +3,8 @@ + + #if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND) + #define do_extend_cmdline 1 ++#elif defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) ++#define do_extend_cmdline 1 + #else + #define do_extend_cmdline 0 + #endif +@@ -66,6 +68,59 @@ static uint32_t get_cell_size(const void + return cell_size; + } + ++#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) ++ ++static char *append_rootblock(char *dest, const char *str, int len, void *fdt) ++{ ++ char *ptr, *end; ++ char *root="root="; ++ int i, l; ++ const char *rootblock; ++ ++ //ARM doesn't have __HAVE_ARCH_STRSTR, so search manually ++ ptr = str - 1; ++ ++ do { ++ //first find an 'r' at the begining or after a space ++ do { ++ ptr++; ++ ptr = strchr(ptr, 'r'); ++ if(!ptr) return dest; ++ ++ } while (ptr != str && *(ptr-1) != ' '); ++ ++ //then check for the rest ++ for(i = 1; i <= 4; i++) ++ if(*(ptr+i) != *(root+i)) break; ++ ++ } while (i != 5); ++ ++ end = strchr(ptr, ' '); ++ end = end ? (end - 1) : (strchr(ptr, 0) - 1); ++ ++ //find partition number (assumes format root=/dev/mtdXX | /dev/mtdblockXX | yy:XX ) ++ for( i = 0; end >= ptr && *end >= '0' && *end <= '9'; end--, i++); ++ ptr = end + 1; ++ ++ /* if append-rootblock property is set use it to append to command line */ ++ rootblock = getprop(fdt, "/chosen", "append-rootblock", &l); ++ if(rootblock != NULL) { ++ if(*dest != ' ') { ++ *dest = ' '; ++ dest++; ++ len++; ++ } ++ if (len + l + i <= COMMAND_LINE_SIZE) { ++ memcpy(dest, rootblock, l); ++ dest += l - 1; ++ memcpy(dest, ptr, i); ++ dest += i; ++ } ++ } ++ return dest; ++} ++#endif ++ + static void merge_fdt_bootargs(void *fdt, const char *fdt_cmdline) + { + char cmdline[COMMAND_LINE_SIZE]; +@@ -85,12 +140,21 @@ static void merge_fdt_bootargs(void *fdt + + /* and append the ATAG_CMDLINE */ + if (fdt_cmdline) { ++ ++#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) ++ //save original bootloader args ++ //and append ubi.mtd with root partition number to current cmdline ++ setprop_string(fdt, "/chosen", "bootloader-args", fdt_cmdline); ++ ptr = append_rootblock(ptr, fdt_cmdline, len, fdt); ++ ++#else + len = strlen(fdt_cmdline); + if (ptr - cmdline + len + 2 < COMMAND_LINE_SIZE) { + *ptr++ = ' '; + memcpy(ptr, fdt_cmdline, len); + ptr += len; + } ++#endif + } + *ptr = '\0'; + +@@ -147,7 +211,9 @@ int atags_to_fdt(void *atag_list, void * + else + setprop_string(fdt, "/chosen", "bootargs", + atag->u.cmdline.cmdline); +- } else if (atag->hdr.tag == ATAG_MEM) { ++ } ++#ifndef CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE ++ else if (atag->hdr.tag == ATAG_MEM) { + if (memcount >= sizeof(mem_reg_property)/4) + continue; + if (!atag->u.mem.size) +@@ -186,6 +252,10 @@ int atags_to_fdt(void *atag_list, void * + setprop(fdt, "/memory", "reg", mem_reg_property, + 4 * memcount * memsize); + } ++#else ++ ++ } ++#endif + + return fdt_pack(fdt); + } +--- a/init/main.c ++++ b/init/main.c +@@ -88,6 +88,10 @@ + #include + #include + ++#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) ++#include ++#endif ++ + static int kernel_init(void *); + + extern void init_IRQ(void); +@@ -538,6 +542,18 @@ asmlinkage __visible void __init start_k + page_alloc_init(); + + pr_notice("Kernel command line: %s\n", boot_command_line); ++ ++#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) ++ //Show bootloader's original command line for reference ++ if(of_chosen) { ++ const char *prop = of_get_property(of_chosen, "bootloader-args", NULL); ++ if(prop) ++ pr_notice("Bootloader command line (ignored): %s\n", prop); ++ else ++ pr_notice("Bootloader command line not present\n"); ++ } ++#endif ++ + parse_early_param(); + after_dashes = parse_args("Booting kernel", + static_command_line, __start___param, diff --git a/target/linux/ipq806x/patches-4.9/0068-spi-add-gpio-cs-support.patch b/target/linux/ipq806x/patches-4.9/0068-spi-add-gpio-cs-support.patch new file mode 100644 index 0000000000..0c03bc9f71 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/0068-spi-add-gpio-cs-support.patch @@ -0,0 +1,71 @@ +From b9c998eb7735df8000cf48d77f9271823e8e73da Mon Sep 17 00:00:00 2001 +From: Ram Chandra Jangir +Date: Thu, 9 Mar 2017 09:39:05 +0100 +Subject: [PATCH 68/69] spi: add gpio cs support + +Signed-off-by: John Crispin +--- + drivers/spi/spi-qup.c | 38 ++++++++++++++++++++++++++++++++++++++ + 1 file changed, 38 insertions(+) + +--- a/drivers/spi/spi-qup.c ++++ b/drivers/spi/spi-qup.c +@@ -24,6 +24,7 @@ + #include + #include + #include ++#include + + #define QUP_CONFIG 0x0000 + #define QUP_STATE 0x0004 +@@ -1019,6 +1020,38 @@ err_tx: + return ret; + } + ++static void spi_qup_set_cs(struct spi_device *spi, bool val) ++{ ++ struct spi_qup *controller; ++ u32 spi_ioc; ++ u32 spi_ioc_orig; ++ ++ controller = spi_master_get_devdata(spi->master); ++ spi_ioc = readl_relaxed(controller->base + SPI_IO_CONTROL); ++ spi_ioc_orig = spi_ioc; ++ if (!val) ++ spi_ioc |= SPI_IO_C_FORCE_CS; ++ else ++ spi_ioc &= ~SPI_IO_C_FORCE_CS; ++ ++ if (spi_ioc != spi_ioc_orig) ++ writel_relaxed(spi_ioc, controller->base + SPI_IO_CONTROL); ++} ++ ++static int spi_qup_setup(struct spi_device *spi) ++{ ++ if (spi->cs_gpio >= 0) { ++ if (spi->mode & SPI_CS_HIGH) ++ gpio_set_value(spi->cs_gpio, 0); ++ else ++ gpio_set_value(spi->cs_gpio, 1); ++ ++ udelay(10); ++ } ++ ++ return 0; ++} ++ + static int spi_qup_probe(struct platform_device *pdev) + { + struct spi_master *master; +@@ -1115,6 +1148,11 @@ static int spi_qup_probe(struct platform + if (of_device_is_compatible(dev->of_node, "qcom,spi-qup-v1.1.1")) + controller->qup_v1 = 1; + ++ if (!controller->qup_v1) ++ master->set_cs = spi_qup_set_cs; ++ else ++ master->setup = spi_qup_setup; ++ + spin_lock_init(&controller->lock); + init_completion(&controller->done); + init_completion(&controller->dma_tx_done); diff --git a/target/linux/ipq806x/patches-4.9/012-1-clk-qcom-Add-support-for-SMD-RPM-Clocks.patch b/target/linux/ipq806x/patches-4.9/012-1-clk-qcom-Add-support-for-SMD-RPM-Clocks.patch deleted file mode 100644 index 5c22b792f7..0000000000 --- a/target/linux/ipq806x/patches-4.9/012-1-clk-qcom-Add-support-for-SMD-RPM-Clocks.patch +++ /dev/null @@ -1,746 +0,0 @@ -From patchwork Wed Nov 2 15:56:56 2016 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -Subject: [v9,1/3] clk: qcom: Add support for SMD-RPM Clocks -From: Georgi Djakov -X-Patchwork-Id: 9409419 -Message-Id: <20161102155658.32203-2-georgi.djakov@linaro.org> -To: sboyd@codeaurora.org, mturquette@baylibre.com -Cc: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, - robh+dt@kernel.org, mark.rutland@arm.com, - linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, - georgi.djakov@linaro.org -Date: Wed, 2 Nov 2016 17:56:56 +0200 - -This adds initial support for clocks controlled by the Resource -Power Manager (RPM) processor on some Qualcomm SoCs, which use -the qcom_smd_rpm driver to communicate with RPM. -Such platforms are msm8916, apq8084 and msm8974. - -The RPM is a dedicated hardware engine for managing the shared -SoC resources in order to keep the lowest power profile. It -communicates with other hardware subsystems via shared memory -and accepts clock requests, aggregates the requests and turns -the clocks on/off or scales them on demand. - -This driver is based on the codeaurora.org driver: -https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/clk/qcom/clock-rpm.c - -Signed-off-by: Georgi Djakov ---- - .../devicetree/bindings/clock/qcom,rpmcc.txt | 36 ++ - drivers/clk/qcom/Kconfig | 16 + - drivers/clk/qcom/Makefile | 1 + - drivers/clk/qcom/clk-smd-rpm.c | 571 +++++++++++++++++++++ - include/dt-bindings/clock/qcom,rpmcc.h | 45 ++ - 5 files changed, 669 insertions(+) - create mode 100644 Documentation/devicetree/bindings/clock/qcom,rpmcc.txt - create mode 100644 drivers/clk/qcom/clk-smd-rpm.c - create mode 100644 include/dt-bindings/clock/qcom,rpmcc.h - --- -To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in -the body of a message to majordomo@vger.kernel.org -More majordomo info at http://vger.kernel.org/majordomo-info.html - ---- /dev/null -+++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt -@@ -0,0 +1,36 @@ -+Qualcomm RPM Clock Controller Binding -+------------------------------------------------ -+The RPM is a dedicated hardware engine for managing the shared -+SoC resources in order to keep the lowest power profile. It -+communicates with other hardware subsystems via shared memory -+and accepts clock requests, aggregates the requests and turns -+the clocks on/off or scales them on demand. -+ -+Required properties : -+- compatible : shall contain only one of the following. The generic -+ compatible "qcom,rpmcc" should be also included. -+ -+ "qcom,rpmcc-msm8916", "qcom,rpmcc" -+ -+- #clock-cells : shall contain 1 -+ -+Example: -+ smd { -+ compatible = "qcom,smd"; -+ -+ rpm { -+ interrupts = <0 168 1>; -+ qcom,ipc = <&apcs 8 0>; -+ qcom,smd-edge = <15>; -+ -+ rpm_requests { -+ compatible = "qcom,rpm-msm8916"; -+ qcom,smd-channels = "rpm_requests"; -+ -+ rpmcc: clock-controller { -+ compatible = "qcom,rpmcc-msm8916", "qcom,rpmcc"; -+ #clock-cells = <1>; -+ }; -+ }; -+ }; -+ }; ---- a/drivers/clk/qcom/Kconfig -+++ b/drivers/clk/qcom/Kconfig -@@ -2,6 +2,9 @@ config QCOM_GDSC - bool - select PM_GENERIC_DOMAINS if PM - -+config QCOM_RPMCC -+ bool -+ - config COMMON_CLK_QCOM - tristate "Support for Qualcomm's clock controllers" - depends on OF -@@ -9,6 +12,19 @@ config COMMON_CLK_QCOM - select REGMAP_MMIO - select RESET_CONTROLLER - -+config QCOM_CLK_SMD_RPM -+ tristate "RPM over SMD based Clock Controller" -+ depends on COMMON_CLK_QCOM && QCOM_SMD_RPM -+ select QCOM_RPMCC -+ help -+ The RPM (Resource Power Manager) is a dedicated hardware engine for -+ managing the shared SoC resources in order to keep the lowest power -+ profile. It communicates with other hardware subsystems via shared -+ memory and accepts clock requests, aggregates the requests and turns -+ the clocks on/off or scales them on demand. -+ Say Y if you want to support the clocks exposed by the RPM on -+ platforms such as apq8016, apq8084, msm8974 etc. -+ - config APQ_GCC_8084 - tristate "APQ8084 Global Clock Controller" - select QCOM_GDSC ---- a/drivers/clk/qcom/Makefile -+++ b/drivers/clk/qcom/Makefile -@@ -29,3 +29,4 @@ obj-$(CONFIG_MSM_LCC_8960) += lcc-msm896 - obj-$(CONFIG_MSM_MMCC_8960) += mmcc-msm8960.o - obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8974.o - obj-$(CONFIG_MSM_MMCC_8996) += mmcc-msm8996.o -+obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o ---- /dev/null -+++ b/drivers/clk/qcom/clk-smd-rpm.c -@@ -0,0 +1,571 @@ -+/* -+ * Copyright (c) 2016, Linaro Limited -+ * Copyright (c) 2014, The Linux Foundation. All rights reserved. -+ * -+ * This software is licensed under the terms of the GNU General Public -+ * License version 2, as published by the Free Software Foundation, and -+ * may be copied, distributed, and modified under those terms. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+ -+#define QCOM_RPM_KEY_SOFTWARE_ENABLE 0x6e657773 -+#define QCOM_RPM_KEY_PIN_CTRL_CLK_BUFFER_ENABLE_KEY 0x62636370 -+#define QCOM_RPM_SMD_KEY_RATE 0x007a484b -+#define QCOM_RPM_SMD_KEY_ENABLE 0x62616e45 -+#define QCOM_RPM_SMD_KEY_STATE 0x54415453 -+#define QCOM_RPM_SCALING_ENABLE_ID 0x2 -+ -+#define __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, stat_id, \ -+ key) \ -+ static struct clk_smd_rpm _platform##_##_active; \ -+ static struct clk_smd_rpm _platform##_##_name = { \ -+ .rpm_res_type = (type), \ -+ .rpm_clk_id = (r_id), \ -+ .rpm_status_id = (stat_id), \ -+ .rpm_key = (key), \ -+ .peer = &_platform##_##_active, \ -+ .rate = INT_MAX, \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_smd_rpm_ops, \ -+ .name = #_name, \ -+ .parent_names = (const char *[]){ "xo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ }; \ -+ static struct clk_smd_rpm _platform##_##_active = { \ -+ .rpm_res_type = (type), \ -+ .rpm_clk_id = (r_id), \ -+ .rpm_status_id = (stat_id), \ -+ .active_only = true, \ -+ .rpm_key = (key), \ -+ .peer = &_platform##_##_name, \ -+ .rate = INT_MAX, \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_smd_rpm_ops, \ -+ .name = #_active, \ -+ .parent_names = (const char *[]){ "xo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ } -+ -+#define __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, r_id, \ -+ stat_id, r, key) \ -+ static struct clk_smd_rpm _platform##_##_active; \ -+ static struct clk_smd_rpm _platform##_##_name = { \ -+ .rpm_res_type = (type), \ -+ .rpm_clk_id = (r_id), \ -+ .rpm_status_id = (stat_id), \ -+ .rpm_key = (key), \ -+ .branch = true, \ -+ .peer = &_platform##_##_active, \ -+ .rate = (r), \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_smd_rpm_branch_ops, \ -+ .name = #_name, \ -+ .parent_names = (const char *[]){ "xo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ }; \ -+ static struct clk_smd_rpm _platform##_##_active = { \ -+ .rpm_res_type = (type), \ -+ .rpm_clk_id = (r_id), \ -+ .rpm_status_id = (stat_id), \ -+ .active_only = true, \ -+ .rpm_key = (key), \ -+ .branch = true, \ -+ .peer = &_platform##_##_name, \ -+ .rate = (r), \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_smd_rpm_branch_ops, \ -+ .name = #_active, \ -+ .parent_names = (const char *[]){ "xo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ } -+ -+#define DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id) \ -+ __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, \ -+ 0, QCOM_RPM_SMD_KEY_RATE) -+ -+#define DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, r_id, r) \ -+ __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, type, \ -+ r_id, 0, r, QCOM_RPM_SMD_KEY_ENABLE) -+ -+#define DEFINE_CLK_SMD_RPM_QDSS(_platform, _name, _active, type, r_id) \ -+ __DEFINE_CLK_SMD_RPM(_platform, _name, _active, type, r_id, \ -+ 0, QCOM_RPM_SMD_KEY_STATE) -+ -+#define DEFINE_CLK_SMD_RPM_XO_BUFFER(_platform, _name, _active, r_id) \ -+ __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, \ -+ QCOM_SMD_RPM_CLK_BUF_A, r_id, 0, 1000, \ -+ QCOM_RPM_KEY_SOFTWARE_ENABLE) -+ -+#define DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(_platform, _name, _active, r_id) \ -+ __DEFINE_CLK_SMD_RPM_BRANCH(_platform, _name, _active, \ -+ QCOM_SMD_RPM_CLK_BUF_A, r_id, 0, 1000, \ -+ QCOM_RPM_KEY_PIN_CTRL_CLK_BUFFER_ENABLE_KEY) -+ -+#define to_clk_smd_rpm(_hw) container_of(_hw, struct clk_smd_rpm, hw) -+ -+struct clk_smd_rpm { -+ const int rpm_res_type; -+ const int rpm_key; -+ const int rpm_clk_id; -+ const int rpm_status_id; -+ const bool active_only; -+ bool enabled; -+ bool branch; -+ struct clk_smd_rpm *peer; -+ struct clk_hw hw; -+ unsigned long rate; -+ struct qcom_smd_rpm *rpm; -+}; -+ -+struct clk_smd_rpm_req { -+ __le32 key; -+ __le32 nbytes; -+ __le32 value; -+}; -+ -+struct rpm_cc { -+ struct qcom_rpm *rpm; -+ struct clk_hw_onecell_data data; -+ struct clk_hw *hws[]; -+}; -+ -+struct rpm_smd_clk_desc { -+ struct clk_smd_rpm **clks; -+ size_t num_clks; -+}; -+ -+static DEFINE_MUTEX(rpm_smd_clk_lock); -+ -+static int clk_smd_rpm_handoff(struct clk_smd_rpm *r) -+{ -+ int ret; -+ struct clk_smd_rpm_req req = { -+ .key = cpu_to_le32(r->rpm_key), -+ .nbytes = cpu_to_le32(sizeof(u32)), -+ .value = cpu_to_le32(INT_MAX), -+ }; -+ -+ ret = qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_ACTIVE_STATE, -+ r->rpm_res_type, r->rpm_clk_id, &req, -+ sizeof(req)); -+ if (ret) -+ return ret; -+ ret = qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_SLEEP_STATE, -+ r->rpm_res_type, r->rpm_clk_id, &req, -+ sizeof(req)); -+ if (ret) -+ return ret; -+ -+ return 0; -+} -+ -+static int clk_smd_rpm_set_rate_active(struct clk_smd_rpm *r, -+ unsigned long rate) -+{ -+ struct clk_smd_rpm_req req = { -+ .key = cpu_to_le32(r->rpm_key), -+ .nbytes = cpu_to_le32(sizeof(u32)), -+ .value = cpu_to_le32(DIV_ROUND_UP(rate, 1000)), /* to kHz */ -+ }; -+ -+ return qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_ACTIVE_STATE, -+ r->rpm_res_type, r->rpm_clk_id, &req, -+ sizeof(req)); -+} -+ -+static int clk_smd_rpm_set_rate_sleep(struct clk_smd_rpm *r, -+ unsigned long rate) -+{ -+ struct clk_smd_rpm_req req = { -+ .key = cpu_to_le32(r->rpm_key), -+ .nbytes = cpu_to_le32(sizeof(u32)), -+ .value = cpu_to_le32(DIV_ROUND_UP(rate, 1000)), /* to kHz */ -+ }; -+ -+ return qcom_rpm_smd_write(r->rpm, QCOM_SMD_RPM_SLEEP_STATE, -+ r->rpm_res_type, r->rpm_clk_id, &req, -+ sizeof(req)); -+} -+ -+static void to_active_sleep(struct clk_smd_rpm *r, unsigned long rate, -+ unsigned long *active, unsigned long *sleep) -+{ -+ *active = rate; -+ -+ /* -+ * Active-only clocks don't care what the rate is during sleep. So, -+ * they vote for zero. -+ */ -+ if (r->active_only) -+ *sleep = 0; -+ else -+ *sleep = *active; -+} -+ -+static int clk_smd_rpm_prepare(struct clk_hw *hw) -+{ -+ struct clk_smd_rpm *r = to_clk_smd_rpm(hw); -+ struct clk_smd_rpm *peer = r->peer; -+ unsigned long this_rate = 0, this_sleep_rate = 0; -+ unsigned long peer_rate = 0, peer_sleep_rate = 0; -+ unsigned long active_rate, sleep_rate; -+ int ret = 0; -+ -+ mutex_lock(&rpm_smd_clk_lock); -+ -+ /* Don't send requests to the RPM if the rate has not been set. */ -+ if (!r->rate) -+ goto out; -+ -+ to_active_sleep(r, r->rate, &this_rate, &this_sleep_rate); -+ -+ /* Take peer clock's rate into account only if it's enabled. */ -+ if (peer->enabled) -+ to_active_sleep(peer, peer->rate, -+ &peer_rate, &peer_sleep_rate); -+ -+ active_rate = max(this_rate, peer_rate); -+ -+ if (r->branch) -+ active_rate = !!active_rate; -+ -+ ret = clk_smd_rpm_set_rate_active(r, active_rate); -+ if (ret) -+ goto out; -+ -+ sleep_rate = max(this_sleep_rate, peer_sleep_rate); -+ if (r->branch) -+ sleep_rate = !!sleep_rate; -+ -+ ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); -+ if (ret) -+ /* Undo the active set vote and restore it */ -+ ret = clk_smd_rpm_set_rate_active(r, peer_rate); -+ -+out: -+ if (!ret) -+ r->enabled = true; -+ -+ mutex_unlock(&rpm_smd_clk_lock); -+ -+ return ret; -+} -+ -+static void clk_smd_rpm_unprepare(struct clk_hw *hw) -+{ -+ struct clk_smd_rpm *r = to_clk_smd_rpm(hw); -+ struct clk_smd_rpm *peer = r->peer; -+ unsigned long peer_rate = 0, peer_sleep_rate = 0; -+ unsigned long active_rate, sleep_rate; -+ int ret; -+ -+ mutex_lock(&rpm_smd_clk_lock); -+ -+ if (!r->rate) -+ goto out; -+ -+ /* Take peer clock's rate into account only if it's enabled. */ -+ if (peer->enabled) -+ to_active_sleep(peer, peer->rate, &peer_rate, -+ &peer_sleep_rate); -+ -+ active_rate = r->branch ? !!peer_rate : peer_rate; -+ ret = clk_smd_rpm_set_rate_active(r, active_rate); -+ if (ret) -+ goto out; -+ -+ sleep_rate = r->branch ? !!peer_sleep_rate : peer_sleep_rate; -+ ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); -+ if (ret) -+ goto out; -+ -+ r->enabled = false; -+ -+out: -+ mutex_unlock(&rpm_smd_clk_lock); -+} -+ -+static int clk_smd_rpm_set_rate(struct clk_hw *hw, unsigned long rate, -+ unsigned long parent_rate) -+{ -+ struct clk_smd_rpm *r = to_clk_smd_rpm(hw); -+ struct clk_smd_rpm *peer = r->peer; -+ unsigned long active_rate, sleep_rate; -+ unsigned long this_rate = 0, this_sleep_rate = 0; -+ unsigned long peer_rate = 0, peer_sleep_rate = 0; -+ int ret = 0; -+ -+ mutex_lock(&rpm_smd_clk_lock); -+ -+ if (!r->enabled) -+ goto out; -+ -+ to_active_sleep(r, rate, &this_rate, &this_sleep_rate); -+ -+ /* Take peer clock's rate into account only if it's enabled. */ -+ if (peer->enabled) -+ to_active_sleep(peer, peer->rate, -+ &peer_rate, &peer_sleep_rate); -+ -+ active_rate = max(this_rate, peer_rate); -+ ret = clk_smd_rpm_set_rate_active(r, active_rate); -+ if (ret) -+ goto out; -+ -+ sleep_rate = max(this_sleep_rate, peer_sleep_rate); -+ ret = clk_smd_rpm_set_rate_sleep(r, sleep_rate); -+ if (ret) -+ goto out; -+ -+ r->rate = rate; -+ -+out: -+ mutex_unlock(&rpm_smd_clk_lock); -+ -+ return ret; -+} -+ -+static long clk_smd_rpm_round_rate(struct clk_hw *hw, unsigned long rate, -+ unsigned long *parent_rate) -+{ -+ /* -+ * RPM handles rate rounding and we don't have a way to -+ * know what the rate will be, so just return whatever -+ * rate is requested. -+ */ -+ return rate; -+} -+ -+static unsigned long clk_smd_rpm_recalc_rate(struct clk_hw *hw, -+ unsigned long parent_rate) -+{ -+ struct clk_smd_rpm *r = to_clk_smd_rpm(hw); -+ -+ /* -+ * RPM handles rate rounding and we don't have a way to -+ * know what the rate will be, so just return whatever -+ * rate was set. -+ */ -+ return r->rate; -+} -+ -+static int clk_smd_rpm_enable_scaling(struct qcom_smd_rpm *rpm) -+{ -+ int ret; -+ struct clk_smd_rpm_req req = { -+ .key = cpu_to_le32(QCOM_RPM_SMD_KEY_ENABLE), -+ .nbytes = cpu_to_le32(sizeof(u32)), -+ .value = cpu_to_le32(1), -+ }; -+ -+ ret = qcom_rpm_smd_write(rpm, QCOM_SMD_RPM_SLEEP_STATE, -+ QCOM_SMD_RPM_MISC_CLK, -+ QCOM_RPM_SCALING_ENABLE_ID, &req, sizeof(req)); -+ if (ret) { -+ pr_err("RPM clock scaling (sleep set) not enabled!\n"); -+ return ret; -+ } -+ -+ ret = qcom_rpm_smd_write(rpm, QCOM_SMD_RPM_ACTIVE_STATE, -+ QCOM_SMD_RPM_MISC_CLK, -+ QCOM_RPM_SCALING_ENABLE_ID, &req, sizeof(req)); -+ if (ret) { -+ pr_err("RPM clock scaling (active set) not enabled!\n"); -+ return ret; -+ } -+ -+ pr_debug("%s: RPM clock scaling is enabled\n", __func__); -+ return 0; -+} -+ -+static const struct clk_ops clk_smd_rpm_ops = { -+ .prepare = clk_smd_rpm_prepare, -+ .unprepare = clk_smd_rpm_unprepare, -+ .set_rate = clk_smd_rpm_set_rate, -+ .round_rate = clk_smd_rpm_round_rate, -+ .recalc_rate = clk_smd_rpm_recalc_rate, -+}; -+ -+static const struct clk_ops clk_smd_rpm_branch_ops = { -+ .prepare = clk_smd_rpm_prepare, -+ .unprepare = clk_smd_rpm_unprepare, -+ .round_rate = clk_smd_rpm_round_rate, -+ .recalc_rate = clk_smd_rpm_recalc_rate, -+}; -+ -+/* msm8916 */ -+DEFINE_CLK_SMD_RPM(msm8916, pcnoc_clk, pcnoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 0); -+DEFINE_CLK_SMD_RPM(msm8916, snoc_clk, snoc_a_clk, QCOM_SMD_RPM_BUS_CLK, 1); -+DEFINE_CLK_SMD_RPM(msm8916, bimc_clk, bimc_a_clk, QCOM_SMD_RPM_MEM_CLK, 0); -+DEFINE_CLK_SMD_RPM_QDSS(msm8916, qdss_clk, qdss_a_clk, QCOM_SMD_RPM_MISC_CLK, 1); -+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, bb_clk1, bb_clk1_a, 1); -+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, bb_clk2, bb_clk2_a, 2); -+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, rf_clk1, rf_clk1_a, 4); -+DEFINE_CLK_SMD_RPM_XO_BUFFER(msm8916, rf_clk2, rf_clk2_a, 5); -+DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, bb_clk1_pin, bb_clk1_a_pin, 1); -+DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, bb_clk2_pin, bb_clk2_a_pin, 2); -+DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, rf_clk1_pin, rf_clk1_a_pin, 4); -+DEFINE_CLK_SMD_RPM_XO_BUFFER_PINCTRL(msm8916, rf_clk2_pin, rf_clk2_a_pin, 5); -+ -+static struct clk_smd_rpm *msm8916_clks[] = { -+ [RPM_SMD_PCNOC_CLK] = &msm8916_pcnoc_clk, -+ [RPM_SMD_PCNOC_A_CLK] = &msm8916_pcnoc_a_clk, -+ [RPM_SMD_SNOC_CLK] = &msm8916_snoc_clk, -+ [RPM_SMD_SNOC_A_CLK] = &msm8916_snoc_a_clk, -+ [RPM_SMD_BIMC_CLK] = &msm8916_bimc_clk, -+ [RPM_SMD_BIMC_A_CLK] = &msm8916_bimc_a_clk, -+ [RPM_SMD_QDSS_CLK] = &msm8916_qdss_clk, -+ [RPM_SMD_QDSS_A_CLK] = &msm8916_qdss_a_clk, -+ [RPM_SMD_BB_CLK1] = &msm8916_bb_clk1, -+ [RPM_SMD_BB_CLK1_A] = &msm8916_bb_clk1_a, -+ [RPM_SMD_BB_CLK2] = &msm8916_bb_clk2, -+ [RPM_SMD_BB_CLK2_A] = &msm8916_bb_clk2_a, -+ [RPM_SMD_RF_CLK1] = &msm8916_rf_clk1, -+ [RPM_SMD_RF_CLK1_A] = &msm8916_rf_clk1_a, -+ [RPM_SMD_RF_CLK2] = &msm8916_rf_clk2, -+ [RPM_SMD_RF_CLK2_A] = &msm8916_rf_clk2_a, -+ [RPM_SMD_BB_CLK1_PIN] = &msm8916_bb_clk1_pin, -+ [RPM_SMD_BB_CLK1_A_PIN] = &msm8916_bb_clk1_a_pin, -+ [RPM_SMD_BB_CLK2_PIN] = &msm8916_bb_clk2_pin, -+ [RPM_SMD_BB_CLK2_A_PIN] = &msm8916_bb_clk2_a_pin, -+ [RPM_SMD_RF_CLK1_PIN] = &msm8916_rf_clk1_pin, -+ [RPM_SMD_RF_CLK1_A_PIN] = &msm8916_rf_clk1_a_pin, -+ [RPM_SMD_RF_CLK2_PIN] = &msm8916_rf_clk2_pin, -+ [RPM_SMD_RF_CLK2_A_PIN] = &msm8916_rf_clk2_a_pin, -+}; -+ -+static const struct rpm_smd_clk_desc rpm_clk_msm8916 = { -+ .clks = msm8916_clks, -+ .num_clks = ARRAY_SIZE(msm8916_clks), -+}; -+ -+static const struct of_device_id rpm_smd_clk_match_table[] = { -+ { .compatible = "qcom,rpmcc-msm8916", .data = &rpm_clk_msm8916 }, -+ { } -+}; -+MODULE_DEVICE_TABLE(of, rpm_smd_clk_match_table); -+ -+static int rpm_smd_clk_probe(struct platform_device *pdev) -+{ -+ struct clk_hw **hws; -+ struct rpm_cc *rcc; -+ struct clk_hw_onecell_data *data; -+ int ret; -+ size_t num_clks, i; -+ struct qcom_smd_rpm *rpm; -+ struct clk_smd_rpm **rpm_smd_clks; -+ const struct rpm_smd_clk_desc *desc; -+ -+ rpm = dev_get_drvdata(pdev->dev.parent); -+ if (!rpm) { -+ dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n"); -+ return -ENODEV; -+ } -+ -+ desc = of_device_get_match_data(&pdev->dev); -+ if (!desc) -+ return -EINVAL; -+ -+ rpm_smd_clks = desc->clks; -+ num_clks = desc->num_clks; -+ -+ rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc) + sizeof(*hws) * num_clks, -+ GFP_KERNEL); -+ if (!rcc) -+ return -ENOMEM; -+ -+ hws = rcc->hws; -+ data = &rcc->data; -+ data->num = num_clks; -+ -+ for (i = 0; i < num_clks; i++) { -+ if (!rpm_smd_clks[i]) { -+ continue; -+ } -+ -+ rpm_smd_clks[i]->rpm = rpm; -+ -+ ret = clk_smd_rpm_handoff(rpm_smd_clks[i]); -+ if (ret) -+ goto err; -+ } -+ -+ ret = clk_smd_rpm_enable_scaling(rpm); -+ if (ret) -+ goto err; -+ -+ for (i = 0; i < num_clks; i++) { -+ if (!rpm_smd_clks[i]) { -+ data->hws[i] = ERR_PTR(-ENOENT); -+ continue; -+ } -+ -+ ret = devm_clk_hw_register(&pdev->dev, &rpm_smd_clks[i]->hw); -+ if (ret) -+ goto err; -+ } -+ -+ ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, -+ data); -+ if (ret) -+ goto err; -+ -+ return 0; -+err: -+ dev_err(&pdev->dev, "Error registering SMD clock driver (%d)\n", ret); -+ return ret; -+} -+ -+static int rpm_smd_clk_remove(struct platform_device *pdev) -+{ -+ of_clk_del_provider(pdev->dev.of_node); -+ return 0; -+} -+ -+static struct platform_driver rpm_smd_clk_driver = { -+ .driver = { -+ .name = "qcom-clk-smd-rpm", -+ .of_match_table = rpm_smd_clk_match_table, -+ }, -+ .probe = rpm_smd_clk_probe, -+ .remove = rpm_smd_clk_remove, -+}; -+ -+static int __init rpm_smd_clk_init(void) -+{ -+ return platform_driver_register(&rpm_smd_clk_driver); -+} -+core_initcall(rpm_smd_clk_init); -+ -+static void __exit rpm_smd_clk_exit(void) -+{ -+ platform_driver_unregister(&rpm_smd_clk_driver); -+} -+module_exit(rpm_smd_clk_exit); -+ -+MODULE_DESCRIPTION("Qualcomm RPM over SMD Clock Controller Driver"); -+MODULE_LICENSE("GPL v2"); -+MODULE_ALIAS("platform:qcom-clk-smd-rpm"); ---- /dev/null -+++ b/include/dt-bindings/clock/qcom,rpmcc.h -@@ -0,0 +1,45 @@ -+/* -+ * Copyright 2015 Linaro Limited -+ * -+ * This software is licensed under the terms of the GNU General Public -+ * License version 2, as published by the Free Software Foundation, and -+ * may be copied, distributed, and modified under those terms. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ */ -+ -+#ifndef _DT_BINDINGS_CLK_MSM_RPMCC_H -+#define _DT_BINDINGS_CLK_MSM_RPMCC_H -+ -+/* msm8916 */ -+#define RPM_SMD_XO_CLK_SRC 0 -+#define RPM_SMD_XO_A_CLK_SRC 1 -+#define RPM_SMD_PCNOC_CLK 2 -+#define RPM_SMD_PCNOC_A_CLK 3 -+#define RPM_SMD_SNOC_CLK 4 -+#define RPM_SMD_SNOC_A_CLK 5 -+#define RPM_SMD_BIMC_CLK 6 -+#define RPM_SMD_BIMC_A_CLK 7 -+#define RPM_SMD_QDSS_CLK 8 -+#define RPM_SMD_QDSS_A_CLK 9 -+#define RPM_SMD_BB_CLK1 10 -+#define RPM_SMD_BB_CLK1_A 11 -+#define RPM_SMD_BB_CLK2 12 -+#define RPM_SMD_BB_CLK2_A 13 -+#define RPM_SMD_RF_CLK1 14 -+#define RPM_SMD_RF_CLK1_A 15 -+#define RPM_SMD_RF_CLK2 16 -+#define RPM_SMD_RF_CLK2_A 17 -+#define RPM_SMD_BB_CLK1_PIN 18 -+#define RPM_SMD_BB_CLK1_A_PIN 19 -+#define RPM_SMD_BB_CLK2_PIN 20 -+#define RPM_SMD_BB_CLK2_A_PIN 21 -+#define RPM_SMD_RF_CLK1_PIN 22 -+#define RPM_SMD_RF_CLK1_A_PIN 23 -+#define RPM_SMD_RF_CLK2_PIN 24 -+#define RPM_SMD_RF_CLK2_A_PIN 25 -+ -+#endif diff --git a/target/linux/ipq806x/patches-4.9/012-2-clk-qcom-Add-support-for-RPM-Clocks.patch b/target/linux/ipq806x/patches-4.9/012-2-clk-qcom-Add-support-for-RPM-Clocks.patch deleted file mode 100644 index 4933ffb024..0000000000 --- a/target/linux/ipq806x/patches-4.9/012-2-clk-qcom-Add-support-for-RPM-Clocks.patch +++ /dev/null @@ -1,586 +0,0 @@ -From 872f91b5ea720c72f81fb46d353c43ecb3263ffa Mon Sep 17 00:00:00 2001 -From: Georgi Djakov -Date: Wed, 2 Nov 2016 17:56:57 +0200 -Subject: clk: qcom: Add support for RPM Clocks - -This adds initial support for clocks controlled by the Resource -Power Manager (RPM) processor on some Qualcomm SoCs, which use -the qcom_rpm driver to communicate with RPM. -Such platforms are apq8064 and msm8960. - -Signed-off-by: Georgi Djakov -Acked-by: Rob Herring -Signed-off-by: Stephen Boyd ---- - .../devicetree/bindings/clock/qcom,rpmcc.txt | 1 + - drivers/clk/qcom/Kconfig | 13 + - drivers/clk/qcom/Makefile | 1 + - drivers/clk/qcom/clk-rpm.c | 489 +++++++++++++++++++++ - include/dt-bindings/clock/qcom,rpmcc.h | 24 + - 5 files changed, 528 insertions(+) - create mode 100644 drivers/clk/qcom/clk-rpm.c - ---- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt -+++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt -@@ -11,6 +11,7 @@ Required properties : - compatible "qcom,rpmcc" should be also included. - - "qcom,rpmcc-msm8916", "qcom,rpmcc" -+ "qcom,rpmcc-apq8064", "qcom,rpmcc" - - - #clock-cells : shall contain 1 - ---- a/drivers/clk/qcom/Kconfig -+++ b/drivers/clk/qcom/Kconfig -@@ -12,6 +12,19 @@ config COMMON_CLK_QCOM - select REGMAP_MMIO - select RESET_CONTROLLER - -+config QCOM_CLK_RPM -+ tristate "RPM based Clock Controller" -+ depends on COMMON_CLK_QCOM && MFD_QCOM_RPM -+ select QCOM_RPMCC -+ help -+ The RPM (Resource Power Manager) is a dedicated hardware engine for -+ managing the shared SoC resources in order to keep the lowest power -+ profile. It communicates with other hardware subsystems via shared -+ memory and accepts clock requests, aggregates the requests and turns -+ the clocks on/off or scales them on demand. -+ Say Y if you want to support the clocks exposed by the RPM on -+ platforms such as ipq806x, msm8660, msm8960 etc. -+ - config QCOM_CLK_SMD_RPM - tristate "RPM over SMD based Clock Controller" - depends on COMMON_CLK_QCOM && QCOM_SMD_RPM ---- a/drivers/clk/qcom/Makefile -+++ b/drivers/clk/qcom/Makefile -@@ -30,3 +30,4 @@ obj-$(CONFIG_MSM_MMCC_8960) += mmcc-msm8 - obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8974.o - obj-$(CONFIG_MSM_MMCC_8996) += mmcc-msm8996.o - obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.o -+obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o ---- /dev/null -+++ b/drivers/clk/qcom/clk-rpm.c -@@ -0,0 +1,489 @@ -+/* -+ * Copyright (c) 2016, Linaro Limited -+ * Copyright (c) 2014, The Linux Foundation. All rights reserved. -+ * -+ * This software is licensed under the terms of the GNU General Public -+ * License version 2, as published by the Free Software Foundation, and -+ * may be copied, distributed, and modified under those terms. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+ -+#define QCOM_RPM_MISC_CLK_TYPE 0x306b6c63 -+#define QCOM_RPM_SCALING_ENABLE_ID 0x2 -+ -+#define DEFINE_CLK_RPM(_platform, _name, _active, r_id) \ -+ static struct clk_rpm _platform##_##_active; \ -+ static struct clk_rpm _platform##_##_name = { \ -+ .rpm_clk_id = (r_id), \ -+ .peer = &_platform##_##_active, \ -+ .rate = INT_MAX, \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_rpm_ops, \ -+ .name = #_name, \ -+ .parent_names = (const char *[]){ "pxo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ }; \ -+ static struct clk_rpm _platform##_##_active = { \ -+ .rpm_clk_id = (r_id), \ -+ .peer = &_platform##_##_name, \ -+ .active_only = true, \ -+ .rate = INT_MAX, \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_rpm_ops, \ -+ .name = #_active, \ -+ .parent_names = (const char *[]){ "pxo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ } -+ -+#define DEFINE_CLK_RPM_PXO_BRANCH(_platform, _name, _active, r_id, r) \ -+ static struct clk_rpm _platform##_##_active; \ -+ static struct clk_rpm _platform##_##_name = { \ -+ .rpm_clk_id = (r_id), \ -+ .active_only = true, \ -+ .peer = &_platform##_##_active, \ -+ .rate = (r), \ -+ .branch = true, \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_rpm_branch_ops, \ -+ .name = #_name, \ -+ .parent_names = (const char *[]){ "pxo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ }; \ -+ static struct clk_rpm _platform##_##_active = { \ -+ .rpm_clk_id = (r_id), \ -+ .peer = &_platform##_##_name, \ -+ .rate = (r), \ -+ .branch = true, \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_rpm_branch_ops, \ -+ .name = #_active, \ -+ .parent_names = (const char *[]){ "pxo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ } -+ -+#define DEFINE_CLK_RPM_CXO_BRANCH(_platform, _name, _active, r_id, r) \ -+ static struct clk_rpm _platform##_##_active; \ -+ static struct clk_rpm _platform##_##_name = { \ -+ .rpm_clk_id = (r_id), \ -+ .peer = &_platform##_##_active, \ -+ .rate = (r), \ -+ .branch = true, \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_rpm_branch_ops, \ -+ .name = #_name, \ -+ .parent_names = (const char *[]){ "cxo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ }; \ -+ static struct clk_rpm _platform##_##_active = { \ -+ .rpm_clk_id = (r_id), \ -+ .active_only = true, \ -+ .peer = &_platform##_##_name, \ -+ .rate = (r), \ -+ .branch = true, \ -+ .hw.init = &(struct clk_init_data){ \ -+ .ops = &clk_rpm_branch_ops, \ -+ .name = #_active, \ -+ .parent_names = (const char *[]){ "cxo_board" }, \ -+ .num_parents = 1, \ -+ }, \ -+ } -+ -+#define to_clk_rpm(_hw) container_of(_hw, struct clk_rpm, hw) -+ -+struct clk_rpm { -+ const int rpm_clk_id; -+ const bool active_only; -+ unsigned long rate; -+ bool enabled; -+ bool branch; -+ struct clk_rpm *peer; -+ struct clk_hw hw; -+ struct qcom_rpm *rpm; -+}; -+ -+struct rpm_cc { -+ struct qcom_rpm *rpm; -+ struct clk_hw_onecell_data data; -+ struct clk_hw *hws[]; -+}; -+ -+struct rpm_clk_desc { -+ struct clk_rpm **clks; -+ size_t num_clks; -+}; -+ -+static DEFINE_MUTEX(rpm_clk_lock); -+ -+static int clk_rpm_handoff(struct clk_rpm *r) -+{ -+ int ret; -+ u32 value = INT_MAX; -+ -+ ret = qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE, -+ r->rpm_clk_id, &value, 1); -+ if (ret) -+ return ret; -+ ret = qcom_rpm_write(r->rpm, QCOM_RPM_SLEEP_STATE, -+ r->rpm_clk_id, &value, 1); -+ if (ret) -+ return ret; -+ -+ return 0; -+} -+ -+static int clk_rpm_set_rate_active(struct clk_rpm *r, unsigned long rate) -+{ -+ u32 value = DIV_ROUND_UP(rate, 1000); /* to kHz */ -+ -+ return qcom_rpm_write(r->rpm, QCOM_RPM_ACTIVE_STATE, -+ r->rpm_clk_id, &value, 1); -+} -+ -+static int clk_rpm_set_rate_sleep(struct clk_rpm *r, unsigned long rate) -+{ -+ u32 value = DIV_ROUND_UP(rate, 1000); /* to kHz */ -+ -+ return qcom_rpm_write(r->rpm, QCOM_RPM_SLEEP_STATE, -+ r->rpm_clk_id, &value, 1); -+} -+ -+static void to_active_sleep(struct clk_rpm *r, unsigned long rate, -+ unsigned long *active, unsigned long *sleep) -+{ -+ *active = rate; -+ -+ /* -+ * Active-only clocks don't care what the rate is during sleep. So, -+ * they vote for zero. -+ */ -+ if (r->active_only) -+ *sleep = 0; -+ else -+ *sleep = *active; -+} -+ -+static int clk_rpm_prepare(struct clk_hw *hw) -+{ -+ struct clk_rpm *r = to_clk_rpm(hw); -+ struct clk_rpm *peer = r->peer; -+ unsigned long this_rate = 0, this_sleep_rate = 0; -+ unsigned long peer_rate = 0, peer_sleep_rate = 0; -+ unsigned long active_rate, sleep_rate; -+ int ret = 0; -+ -+ mutex_lock(&rpm_clk_lock); -+ -+ /* Don't send requests to the RPM if the rate has not been set. */ -+ if (!r->rate) -+ goto out; -+ -+ to_active_sleep(r, r->rate, &this_rate, &this_sleep_rate); -+ -+ /* Take peer clock's rate into account only if it's enabled. */ -+ if (peer->enabled) -+ to_active_sleep(peer, peer->rate, -+ &peer_rate, &peer_sleep_rate); -+ -+ active_rate = max(this_rate, peer_rate); -+ -+ if (r->branch) -+ active_rate = !!active_rate; -+ -+ ret = clk_rpm_set_rate_active(r, active_rate); -+ if (ret) -+ goto out; -+ -+ sleep_rate = max(this_sleep_rate, peer_sleep_rate); -+ if (r->branch) -+ sleep_rate = !!sleep_rate; -+ -+ ret = clk_rpm_set_rate_sleep(r, sleep_rate); -+ if (ret) -+ /* Undo the active set vote and restore it */ -+ ret = clk_rpm_set_rate_active(r, peer_rate); -+ -+out: -+ if (!ret) -+ r->enabled = true; -+ -+ mutex_unlock(&rpm_clk_lock); -+ -+ return ret; -+} -+ -+static void clk_rpm_unprepare(struct clk_hw *hw) -+{ -+ struct clk_rpm *r = to_clk_rpm(hw); -+ struct clk_rpm *peer = r->peer; -+ unsigned long peer_rate = 0, peer_sleep_rate = 0; -+ unsigned long active_rate, sleep_rate; -+ int ret; -+ -+ mutex_lock(&rpm_clk_lock); -+ -+ if (!r->rate) -+ goto out; -+ -+ /* Take peer clock's rate into account only if it's enabled. */ -+ if (peer->enabled) -+ to_active_sleep(peer, peer->rate, &peer_rate, -+ &peer_sleep_rate); -+ -+ active_rate = r->branch ? !!peer_rate : peer_rate; -+ ret = clk_rpm_set_rate_active(r, active_rate); -+ if (ret) -+ goto out; -+ -+ sleep_rate = r->branch ? !!peer_sleep_rate : peer_sleep_rate; -+ ret = clk_rpm_set_rate_sleep(r, sleep_rate); -+ if (ret) -+ goto out; -+ -+ r->enabled = false; -+ -+out: -+ mutex_unlock(&rpm_clk_lock); -+} -+ -+static int clk_rpm_set_rate(struct clk_hw *hw, -+ unsigned long rate, unsigned long parent_rate) -+{ -+ struct clk_rpm *r = to_clk_rpm(hw); -+ struct clk_rpm *peer = r->peer; -+ unsigned long active_rate, sleep_rate; -+ unsigned long this_rate = 0, this_sleep_rate = 0; -+ unsigned long peer_rate = 0, peer_sleep_rate = 0; -+ int ret = 0; -+ -+ mutex_lock(&rpm_clk_lock); -+ -+ if (!r->enabled) -+ goto out; -+ -+ to_active_sleep(r, rate, &this_rate, &this_sleep_rate); -+ -+ /* Take peer clock's rate into account only if it's enabled. */ -+ if (peer->enabled) -+ to_active_sleep(peer, peer->rate, -+ &peer_rate, &peer_sleep_rate); -+ -+ active_rate = max(this_rate, peer_rate); -+ ret = clk_rpm_set_rate_active(r, active_rate); -+ if (ret) -+ goto out; -+ -+ sleep_rate = max(this_sleep_rate, peer_sleep_rate); -+ ret = clk_rpm_set_rate_sleep(r, sleep_rate); -+ if (ret) -+ goto out; -+ -+ r->rate = rate; -+ -+out: -+ mutex_unlock(&rpm_clk_lock); -+ -+ return ret; -+} -+ -+static long clk_rpm_round_rate(struct clk_hw *hw, unsigned long rate, -+ unsigned long *parent_rate) -+{ -+ /* -+ * RPM handles rate rounding and we don't have a way to -+ * know what the rate will be, so just return whatever -+ * rate is requested. -+ */ -+ return rate; -+} -+ -+static unsigned long clk_rpm_recalc_rate(struct clk_hw *hw, -+ unsigned long parent_rate) -+{ -+ struct clk_rpm *r = to_clk_rpm(hw); -+ -+ /* -+ * RPM handles rate rounding and we don't have a way to -+ * know what the rate will be, so just return whatever -+ * rate was set. -+ */ -+ return r->rate; -+} -+ -+static const struct clk_ops clk_rpm_ops = { -+ .prepare = clk_rpm_prepare, -+ .unprepare = clk_rpm_unprepare, -+ .set_rate = clk_rpm_set_rate, -+ .round_rate = clk_rpm_round_rate, -+ .recalc_rate = clk_rpm_recalc_rate, -+}; -+ -+static const struct clk_ops clk_rpm_branch_ops = { -+ .prepare = clk_rpm_prepare, -+ .unprepare = clk_rpm_unprepare, -+ .round_rate = clk_rpm_round_rate, -+ .recalc_rate = clk_rpm_recalc_rate, -+}; -+ -+/* apq8064 */ -+DEFINE_CLK_RPM(apq8064, afab_clk, afab_a_clk, QCOM_RPM_APPS_FABRIC_CLK); -+DEFINE_CLK_RPM(apq8064, cfpb_clk, cfpb_a_clk, QCOM_RPM_CFPB_CLK); -+DEFINE_CLK_RPM(apq8064, daytona_clk, daytona_a_clk, QCOM_RPM_DAYTONA_FABRIC_CLK); -+DEFINE_CLK_RPM(apq8064, ebi1_clk, ebi1_a_clk, QCOM_RPM_EBI1_CLK); -+DEFINE_CLK_RPM(apq8064, mmfab_clk, mmfab_a_clk, QCOM_RPM_MM_FABRIC_CLK); -+DEFINE_CLK_RPM(apq8064, mmfpb_clk, mmfpb_a_clk, QCOM_RPM_MMFPB_CLK); -+DEFINE_CLK_RPM(apq8064, sfab_clk, sfab_a_clk, QCOM_RPM_SYS_FABRIC_CLK); -+DEFINE_CLK_RPM(apq8064, sfpb_clk, sfpb_a_clk, QCOM_RPM_SFPB_CLK); -+DEFINE_CLK_RPM(apq8064, qdss_clk, qdss_a_clk, QCOM_RPM_QDSS_CLK); -+ -+static struct clk_rpm *apq8064_clks[] = { -+ [RPM_APPS_FABRIC_CLK] = &apq8064_afab_clk, -+ [RPM_APPS_FABRIC_A_CLK] = &apq8064_afab_a_clk, -+ [RPM_CFPB_CLK] = &apq8064_cfpb_clk, -+ [RPM_CFPB_A_CLK] = &apq8064_cfpb_a_clk, -+ [RPM_DAYTONA_FABRIC_CLK] = &apq8064_daytona_clk, -+ [RPM_DAYTONA_FABRIC_A_CLK] = &apq8064_daytona_a_clk, -+ [RPM_EBI1_CLK] = &apq8064_ebi1_clk, -+ [RPM_EBI1_A_CLK] = &apq8064_ebi1_a_clk, -+ [RPM_MM_FABRIC_CLK] = &apq8064_mmfab_clk, -+ [RPM_MM_FABRIC_A_CLK] = &apq8064_mmfab_a_clk, -+ [RPM_MMFPB_CLK] = &apq8064_mmfpb_clk, -+ [RPM_MMFPB_A_CLK] = &apq8064_mmfpb_a_clk, -+ [RPM_SYS_FABRIC_CLK] = &apq8064_sfab_clk, -+ [RPM_SYS_FABRIC_A_CLK] = &apq8064_sfab_a_clk, -+ [RPM_SFPB_CLK] = &apq8064_sfpb_clk, -+ [RPM_SFPB_A_CLK] = &apq8064_sfpb_a_clk, -+ [RPM_QDSS_CLK] = &apq8064_qdss_clk, -+ [RPM_QDSS_A_CLK] = &apq8064_qdss_a_clk, -+}; -+ -+static const struct rpm_clk_desc rpm_clk_apq8064 = { -+ .clks = apq8064_clks, -+ .num_clks = ARRAY_SIZE(apq8064_clks), -+}; -+ -+static const struct of_device_id rpm_clk_match_table[] = { -+ { .compatible = "qcom,rpmcc-apq8064", .data = &rpm_clk_apq8064 }, -+ { } -+}; -+MODULE_DEVICE_TABLE(of, rpm_clk_match_table); -+ -+static int rpm_clk_probe(struct platform_device *pdev) -+{ -+ struct clk_hw **hws; -+ struct rpm_cc *rcc; -+ struct clk_hw_onecell_data *data; -+ int ret; -+ size_t num_clks, i; -+ struct qcom_rpm *rpm; -+ struct clk_rpm **rpm_clks; -+ const struct rpm_clk_desc *desc; -+ -+ rpm = dev_get_drvdata(pdev->dev.parent); -+ if (!rpm) { -+ dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n"); -+ return -ENODEV; -+ } -+ -+ desc = of_device_get_match_data(&pdev->dev); -+ if (!desc) -+ return -EINVAL; -+ -+ rpm_clks = desc->clks; -+ num_clks = desc->num_clks; -+ -+ rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc) + sizeof(*hws) * num_clks, -+ GFP_KERNEL); -+ if (!rcc) -+ return -ENOMEM; -+ -+ hws = rcc->hws; -+ data = &rcc->data; -+ data->num = num_clks; -+ -+ for (i = 0; i < num_clks; i++) { -+ if (!rpm_clks[i]) -+ continue; -+ -+ rpm_clks[i]->rpm = rpm; -+ -+ ret = clk_rpm_handoff(rpm_clks[i]); -+ if (ret) -+ goto err; -+ } -+ -+ for (i = 0; i < num_clks; i++) { -+ if (!rpm_clks[i]) { -+ data->hws[i] = ERR_PTR(-ENOENT); -+ continue; -+ } -+ -+ ret = devm_clk_hw_register(&pdev->dev, &rpm_clks[i]->hw); -+ if (ret) -+ goto err; -+ } -+ -+ ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, -+ data); -+ if (ret) -+ goto err; -+ -+ return 0; -+err: -+ dev_err(&pdev->dev, "Error registering RPM Clock driver (%d)\n", ret); -+ return ret; -+} -+ -+static int rpm_clk_remove(struct platform_device *pdev) -+{ -+ of_clk_del_provider(pdev->dev.of_node); -+ return 0; -+} -+ -+static struct platform_driver rpm_clk_driver = { -+ .driver = { -+ .name = "qcom-clk-rpm", -+ .of_match_table = rpm_clk_match_table, -+ }, -+ .probe = rpm_clk_probe, -+ .remove = rpm_clk_remove, -+}; -+ -+static int __init rpm_clk_init(void) -+{ -+ return platform_driver_register(&rpm_clk_driver); -+} -+core_initcall(rpm_clk_init); -+ -+static void __exit rpm_clk_exit(void) -+{ -+ platform_driver_unregister(&rpm_clk_driver); -+} -+module_exit(rpm_clk_exit); -+ -+MODULE_DESCRIPTION("Qualcomm RPM Clock Controller Driver"); -+MODULE_LICENSE("GPL v2"); -+MODULE_ALIAS("platform:qcom-clk-rpm"); ---- a/include/dt-bindings/clock/qcom,rpmcc.h -+++ b/include/dt-bindings/clock/qcom,rpmcc.h -@@ -14,6 +14,30 @@ - #ifndef _DT_BINDINGS_CLK_MSM_RPMCC_H - #define _DT_BINDINGS_CLK_MSM_RPMCC_H - -+/* apq8064 */ -+#define RPM_PXO_CLK 0 -+#define RPM_PXO_A_CLK 1 -+#define RPM_CXO_CLK 2 -+#define RPM_CXO_A_CLK 3 -+#define RPM_APPS_FABRIC_CLK 4 -+#define RPM_APPS_FABRIC_A_CLK 5 -+#define RPM_CFPB_CLK 6 -+#define RPM_CFPB_A_CLK 7 -+#define RPM_QDSS_CLK 8 -+#define RPM_QDSS_A_CLK 9 -+#define RPM_DAYTONA_FABRIC_CLK 10 -+#define RPM_DAYTONA_FABRIC_A_CLK 11 -+#define RPM_EBI1_CLK 12 -+#define RPM_EBI1_A_CLK 13 -+#define RPM_MM_FABRIC_CLK 14 -+#define RPM_MM_FABRIC_A_CLK 15 -+#define RPM_MMFPB_CLK 16 -+#define RPM_MMFPB_A_CLK 17 -+#define RPM_SYS_FABRIC_CLK 18 -+#define RPM_SYS_FABRIC_A_CLK 19 -+#define RPM_SFPB_CLK 20 -+#define RPM_SFPB_A_CLK 21 -+ - /* msm8916 */ - #define RPM_SMD_XO_CLK_SRC 0 - #define RPM_SMD_XO_A_CLK_SRC 1 diff --git a/target/linux/ipq806x/patches-4.9/012-3-clk-qcom-clk-rpm-Fix-clk_hw-references.patch b/target/linux/ipq806x/patches-4.9/012-3-clk-qcom-clk-rpm-Fix-clk_hw-references.patch deleted file mode 100644 index e5c1870eab..0000000000 --- a/target/linux/ipq806x/patches-4.9/012-3-clk-qcom-clk-rpm-Fix-clk_hw-references.patch +++ /dev/null @@ -1,94 +0,0 @@ -From c260524aba53b57f72b5446ed553080df30b4d09 Mon Sep 17 00:00:00 2001 -From: Georgi Djakov -Date: Wed, 23 Nov 2016 16:52:49 +0200 -Subject: clk: qcom: clk-rpm: Fix clk_hw references - -Fix the clk_hw references to the actual clocks and add a xlate function -to return the hw pointers from the already existing static array. - -Reported-by: Michael Scott -Signed-off-by: Georgi Djakov -Signed-off-by: Stephen Boyd ---- - drivers/clk/qcom/clk-rpm.c | 36 ++++++++++++++++++++++-------------- - 1 file changed, 22 insertions(+), 14 deletions(-) - ---- a/drivers/clk/qcom/clk-rpm.c -+++ b/drivers/clk/qcom/clk-rpm.c -@@ -127,8 +127,8 @@ struct clk_rpm { - - struct rpm_cc { - struct qcom_rpm *rpm; -- struct clk_hw_onecell_data data; -- struct clk_hw *hws[]; -+ struct clk_rpm **clks; -+ size_t num_clks; - }; - - struct rpm_clk_desc { -@@ -391,11 +391,23 @@ static const struct of_device_id rpm_clk - }; - MODULE_DEVICE_TABLE(of, rpm_clk_match_table); - -+static struct clk_hw *qcom_rpm_clk_hw_get(struct of_phandle_args *clkspec, -+ void *data) -+{ -+ struct rpm_cc *rcc = data; -+ unsigned int idx = clkspec->args[0]; -+ -+ if (idx >= rcc->num_clks) { -+ pr_err("%s: invalid index %u\n", __func__, idx); -+ return ERR_PTR(-EINVAL); -+ } -+ -+ return rcc->clks[idx] ? &rcc->clks[idx]->hw : ERR_PTR(-ENOENT); -+} -+ - static int rpm_clk_probe(struct platform_device *pdev) - { -- struct clk_hw **hws; - struct rpm_cc *rcc; -- struct clk_hw_onecell_data *data; - int ret; - size_t num_clks, i; - struct qcom_rpm *rpm; -@@ -415,14 +427,12 @@ static int rpm_clk_probe(struct platform - rpm_clks = desc->clks; - num_clks = desc->num_clks; - -- rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc) + sizeof(*hws) * num_clks, -- GFP_KERNEL); -+ rcc = devm_kzalloc(&pdev->dev, sizeof(*rcc), GFP_KERNEL); - if (!rcc) - return -ENOMEM; - -- hws = rcc->hws; -- data = &rcc->data; -- data->num = num_clks; -+ rcc->clks = rpm_clks; -+ rcc->num_clks = num_clks; - - for (i = 0; i < num_clks; i++) { - if (!rpm_clks[i]) -@@ -436,18 +446,16 @@ static int rpm_clk_probe(struct platform - } - - for (i = 0; i < num_clks; i++) { -- if (!rpm_clks[i]) { -- data->hws[i] = ERR_PTR(-ENOENT); -+ if (!rpm_clks[i]) - continue; -- } - - ret = devm_clk_hw_register(&pdev->dev, &rpm_clks[i]->hw); - if (ret) - goto err; - } - -- ret = of_clk_add_hw_provider(pdev->dev.of_node, of_clk_hw_onecell_get, -- data); -+ ret = of_clk_add_hw_provider(pdev->dev.of_node, qcom_rpm_clk_hw_get, -+ rcc); - if (ret) - goto err; - diff --git a/target/linux/ipq806x/patches-4.9/167-ARM-qcom_rpm_fix_support_for_smb208.patch b/target/linux/ipq806x/patches-4.9/167-ARM-qcom_rpm_fix_support_for_smb208.patch deleted file mode 100644 index d46e97bc93..0000000000 --- a/target/linux/ipq806x/patches-4.9/167-ARM-qcom_rpm_fix_support_for_smb208.patch +++ /dev/null @@ -1,44 +0,0 @@ - -In commit "regulator: qcom: Rework to single platform device" the smb208 regulator -used in IPQ8064 was left out. - -Add it to that new framework and update Docs accordingly. - -Signed-off-by: Adrian Panella - ---- a/Documentation/devicetree/bindings/mfd/qcom-rpm.txt -+++ b/Documentation/devicetree/bindings/mfd/qcom-rpm.txt -@@ -171,6 +171,9 @@ pm8018: - s1, s2, s3, s4, s5, , l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, - l12, l14, lvs1 - -+smb208: -+ s1a, s1b, s2a, s2b -+ - The content of each sub-node is defined by the standard binding for regulators - - see regulator.txt - with additional custom properties described below: - ---- a/drivers/regulator/qcom_rpm-regulator.c -+++ b/drivers/regulator/qcom_rpm-regulator.c -@@ -933,12 +933,21 @@ static const struct rpm_regulator_data r - { } - }; - -+static const struct rpm_regulator_data rpm_smb208_regulators[] = { -+ { "s1a", QCOM_RPM_SMB208_S1a, &smb208_smps, "vin_s1a" }, -+ { "s1b", QCOM_RPM_SMB208_S1b, &smb208_smps, "vin_s1b" }, -+ { "s2a", QCOM_RPM_SMB208_S2a, &smb208_smps, "vin_s2a" }, -+ { "s2b", QCOM_RPM_SMB208_S2b, &smb208_smps, "vin_s2b" }, -+ { } -+}; -+ - static const struct of_device_id rpm_of_match[] = { - { .compatible = "qcom,rpm-pm8018-regulators", - .data = &rpm_pm8018_regulators }, - { .compatible = "qcom,rpm-pm8058-regulators", .data = &rpm_pm8058_regulators }, - { .compatible = "qcom,rpm-pm8901-regulators", .data = &rpm_pm8901_regulators }, - { .compatible = "qcom,rpm-pm8921-regulators", .data = &rpm_pm8921_regulators }, -+ { .compatible = "qcom,rpm-smb208-regulators", .data = &rpm_smb208_regulators }, - { } - }; - MODULE_DEVICE_TABLE(of, rpm_of_match); diff --git a/target/linux/ipq806x/patches-4.9/300-arch-arm-force-ZRELADDR-on-arch-qcom.patch b/target/linux/ipq806x/patches-4.9/300-arch-arm-force-ZRELADDR-on-arch-qcom.patch deleted file mode 100644 index c30856060c..0000000000 --- a/target/linux/ipq806x/patches-4.9/300-arch-arm-force-ZRELADDR-on-arch-qcom.patch +++ /dev/null @@ -1,62 +0,0 @@ -From b12e230f09d4481424e6a5d7e2ae566b6954e83f Mon Sep 17 00:00:00 2001 -From: Mathieu Olivari -Date: Wed, 29 Apr 2015 15:21:46 -0700 -Subject: [PATCH] HACK: arch: arm: force ZRELADDR on arch-qcom - -ARCH_QCOM is using the ARCH_MULTIPLATFORM option, as now recommended -on most ARM architectures. This automatically calculate ZRELADDR by -masking PHYS_OFFSET with 0xf8000000. - -However, on IPQ806x, the first ~20MB of RAM is reserved for the hardware -network accelerators, and the bootloader removes this section from the -layout passed from the ATAGS (when used). - -For newer bootloader, when DT is used, this is not a problem, we just -reserve this memory in the device tree. But if the bootloader doesn't -have DT support, then ATAGS have to be used. In this case, the ARM -decompressor will position the kernel in this low mem, which will not be -in the RAM section mapped by the bootloader, which means the kernel will -freeze in the middle of the boot process trying to map the memory. - -As a work around, this patch allows disabling AUTO_ZRELADDR when -ARCH_QCOM is selected. It makes the zImage usage possible on bootloaders -which don't support device-tree, which is the case on certain early -IPQ806x based designs. - -Signed-off-by: Mathieu Olivari ---- - arch/arm/Kconfig | 2 +- - arch/arm/Makefile | 2 ++ - arch/arm/mach-qcom/Makefile.boot | 1 + - 3 files changed, 4 insertions(+), 1 deletion(-) - create mode 100644 arch/arm/mach-qcom/Makefile.boot - ---- a/arch/arm/Kconfig -+++ b/arch/arm/Kconfig -@@ -332,7 +332,7 @@ config ARCH_MULTIPLATFORM - depends on MMU - select ARM_HAS_SG_CHAIN - select ARM_PATCH_PHYS_VIRT -- select AUTO_ZRELADDR -+ select AUTO_ZRELADDR if !ARCH_QCOM - select CLKSRC_OF - select COMMON_CLK - select GENERIC_CLOCKEVENTS ---- a/arch/arm/Makefile -+++ b/arch/arm/Makefile -@@ -251,9 +251,11 @@ MACHINE := arch/arm/mach-$(word 1,$(mac - else - MACHINE := - endif -+ifeq ($(CONFIG_ARCH_QCOM),) - ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) - MACHINE := - endif -+endif - - machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) - platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y))) ---- /dev/null -+++ b/arch/arm/mach-qcom/Makefile.boot -@@ -0,0 +1 @@ -+zreladdr-y+= 0x42208000 diff --git a/target/linux/ipq806x/patches-4.9/307-gcc-Added-the-enable-regs-and-mask-for-PRNG.patch b/target/linux/ipq806x/patches-4.9/307-gcc-Added-the-enable-regs-and-mask-for-PRNG.patch deleted file mode 100644 index 7a7cff3e41..0000000000 --- a/target/linux/ipq806x/patches-4.9/307-gcc-Added-the-enable-regs-and-mask-for-PRNG.patch +++ /dev/null @@ -1,25 +0,0 @@ -From dd43e356db678a564ad2cc111962d72ba3162a38 Mon Sep 17 00:00:00 2001 -From: Abhishek Sahu -Date: Wed, 18 Nov 2015 12:38:56 +0530 -Subject: ipq806x: gcc: Added the enable regs and mask for PRNG - -kernel got hanged while reading from /dev/hwrng at the -time of PRNG clock enable - -Change-Id: I89856c7e19e6639508e6a2774304583a3ec91172 -Signed-off-by: Abhishek Sahu ---- - drivers/clk/qcom/gcc-ipq806x.c | 2 ++ - 1 file changed, 2 insertions(+) - ---- a/drivers/clk/qcom/gcc-ipq806x.c -+++ b/drivers/clk/qcom/gcc-ipq806x.c -@@ -1153,6 +1153,8 @@ static struct clk_rcg prng_src = { - .parent_map = gcc_pxo_pll8_map, - }, - .clkr = { -+ .enable_reg = 0x2e80, -+ .enable_mask = BIT(11), - .hw.init = &(struct clk_init_data){ - .name = "prng_src", - .parent_names = gcc_pxo_pll8, diff --git a/target/linux/ipq806x/patches-4.9/311-add-rpmcc-for-ipq806x.patch b/target/linux/ipq806x/patches-4.9/311-add-rpmcc-for-ipq806x.patch deleted file mode 100644 index bb9dd87dd6..0000000000 --- a/target/linux/ipq806x/patches-4.9/311-add-rpmcc-for-ipq806x.patch +++ /dev/null @@ -1,81 +0,0 @@ ---- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt -+++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.txt -@@ -12,6 +12,7 @@ Required properties : - - "qcom,rpmcc-msm8916", "qcom,rpmcc" - "qcom,rpmcc-apq8064", "qcom,rpmcc" -+ "qcom,rpmcc-ipq806x", "qcom,rpmcc" - - - #clock-cells : shall contain 1 - ---- a/drivers/clk/qcom/clk-rpm.c -+++ b/drivers/clk/qcom/clk-rpm.c -@@ -359,6 +359,16 @@ DEFINE_CLK_RPM(apq8064, sfab_clk, sfab_a - DEFINE_CLK_RPM(apq8064, sfpb_clk, sfpb_a_clk, QCOM_RPM_SFPB_CLK); - DEFINE_CLK_RPM(apq8064, qdss_clk, qdss_a_clk, QCOM_RPM_QDSS_CLK); - -+/* ipq806x */ -+DEFINE_CLK_RPM(ipq806x, afab_clk, afab_a_clk, QCOM_RPM_APPS_FABRIC_CLK); -+DEFINE_CLK_RPM(ipq806x, cfpb_clk, cfpb_a_clk, QCOM_RPM_CFPB_CLK); -+DEFINE_CLK_RPM(ipq806x, daytona_clk, daytona_a_clk, QCOM_RPM_DAYTONA_FABRIC_CLK); -+DEFINE_CLK_RPM(ipq806x, ebi1_clk, ebi1_a_clk, QCOM_RPM_EBI1_CLK); -+DEFINE_CLK_RPM(ipq806x, sfab_clk, sfab_a_clk, QCOM_RPM_SYS_FABRIC_CLK); -+DEFINE_CLK_RPM(ipq806x, sfpb_clk, sfpb_a_clk, QCOM_RPM_SFPB_CLK); -+DEFINE_CLK_RPM(ipq806x, nss_fabric_0_clk, nss_fabric_0_a_clk, QCOM_RPM_NSS_FABRIC_0_CLK); -+DEFINE_CLK_RPM(ipq806x, nss_fabric_1_clk, nss_fabric_1_a_clk, QCOM_RPM_NSS_FABRIC_1_CLK); -+ - static struct clk_rpm *apq8064_clks[] = { - [RPM_APPS_FABRIC_CLK] = &apq8064_afab_clk, - [RPM_APPS_FABRIC_A_CLK] = &apq8064_afab_a_clk, -@@ -380,13 +390,38 @@ static struct clk_rpm *apq8064_clks[] = - [RPM_QDSS_A_CLK] = &apq8064_qdss_a_clk, - }; - -+static struct clk_rpm *ipq806x_clks[] = { -+ [RPM_APPS_FABRIC_CLK] = &ipq806x_afab_clk, -+ [RPM_APPS_FABRIC_A_CLK] = &ipq806x_afab_a_clk, -+ [RPM_CFPB_CLK] = &ipq806x_cfpb_clk, -+ [RPM_CFPB_A_CLK] = &ipq806x_cfpb_a_clk, -+ [RPM_DAYTONA_FABRIC_CLK] = &ipq806x_daytona_clk, -+ [RPM_DAYTONA_FABRIC_A_CLK] = &ipq806x_daytona_a_clk, -+ [RPM_EBI1_CLK] = &ipq806x_ebi1_clk, -+ [RPM_EBI1_A_CLK] = &ipq806x_ebi1_a_clk, -+ [RPM_SYS_FABRIC_CLK] = &ipq806x_sfab_clk, -+ [RPM_SYS_FABRIC_A_CLK] = &ipq806x_sfab_a_clk, -+ [RPM_SFPB_CLK] = &ipq806x_sfpb_clk, -+ [RPM_SFPB_A_CLK] = &ipq806x_sfpb_a_clk, -+ [RPM_NSS_FABRIC_0_CLK] = &ipq806x_nss_fabric_0_clk, -+ [RPM_NSS_FABRIC_0_A_CLK] = &ipq806x_nss_fabric_0_a_clk, -+ [RPM_NSS_FABRIC_1_CLK] = &ipq806x_nss_fabric_1_clk, -+ [RPM_NSS_FABRIC_1_A_CLK] = &ipq806x_nss_fabric_1_a_clk, -+}; -+ - static const struct rpm_clk_desc rpm_clk_apq8064 = { - .clks = apq8064_clks, - .num_clks = ARRAY_SIZE(apq8064_clks), - }; - -+static const struct rpm_clk_desc rpm_clk_ipq806x = { -+ .clks = ipq806x_clks, -+ .num_clks = ARRAY_SIZE(ipq806x_clks), -+}; -+ - static const struct of_device_id rpm_clk_match_table[] = { - { .compatible = "qcom,rpmcc-apq8064", .data = &rpm_clk_apq8064 }, -+ { .compatible = "qcom,rpmcc-ipq806x", .data = &rpm_clk_ipq806x }, - { } - }; - MODULE_DEVICE_TABLE(of, rpm_clk_match_table); ---- a/include/dt-bindings/clock/qcom,rpmcc.h -+++ b/include/dt-bindings/clock/qcom,rpmcc.h -@@ -37,6 +37,10 @@ - #define RPM_SYS_FABRIC_A_CLK 19 - #define RPM_SFPB_CLK 20 - #define RPM_SFPB_A_CLK 21 -+#define RPM_NSS_FABRIC_0_CLK 22 -+#define RPM_NSS_FABRIC_0_A_CLK 23 -+#define RPM_NSS_FABRIC_1_CLK 24 -+#define RPM_NSS_FABRIC_1_A_CLK 25 - - /* msm8916 */ - #define RPM_SMD_XO_CLK_SRC 0 diff --git a/target/linux/ipq806x/patches-4.9/801-override-compiler-flags.patch b/target/linux/ipq806x/patches-4.9/801-override-compiler-flags.patch deleted file mode 100644 index 6591dbdf79..0000000000 --- a/target/linux/ipq806x/patches-4.9/801-override-compiler-flags.patch +++ /dev/null @@ -1,11 +0,0 @@ ---- a/arch/arm/Makefile -+++ b/arch/arm/Makefile -@@ -65,7 +65,7 @@ KBUILD_CFLAGS += $(call cc-option,-fno-i - # macro, but instead defines a whole series of macros which makes - # testing for a specific architecture or later rather impossible. - arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m --arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) -+arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 -mcpu=cortex-a15 - arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) - # Only override the compiler option if ARMv6. The ARMv6K extensions are - # always available in ARMv7 diff --git a/target/linux/ipq806x/patches-4.9/802-GPIO-add-named-gpio-exports.patch b/target/linux/ipq806x/patches-4.9/802-GPIO-add-named-gpio-exports.patch deleted file mode 100644 index 3434864d26..0000000000 --- a/target/linux/ipq806x/patches-4.9/802-GPIO-add-named-gpio-exports.patch +++ /dev/null @@ -1,166 +0,0 @@ -From 4267880319bc1a2270d352e0ded6d6386242a7ef Mon Sep 17 00:00:00 2001 -From: John Crispin -Date: Tue, 12 Aug 2014 20:49:27 +0200 -Subject: [PATCH 24/53] GPIO: add named gpio exports - -Signed-off-by: John Crispin ---- - drivers/gpio/gpiolib-of.c | 68 +++++++++++++++++++++++++++++++++++++++++ - drivers/gpio/gpiolib-sysfs.c | 10 +++++- - include/asm-generic/gpio.h | 6 ++++ - include/linux/gpio/consumer.h | 8 +++++ - 4 files changed, 91 insertions(+), 1 deletion(-) - ---- a/drivers/gpio/gpiolib-of.c -+++ b/drivers/gpio/gpiolib-of.c -@@ -23,6 +23,8 @@ - #include - #include - #include -+#include -+#include - - #include "gpiolib.h" - -@@ -538,3 +540,69 @@ void of_gpiochip_remove(struct gpio_chip - gpiochip_remove_pin_ranges(chip); - of_node_put(chip->of_node); - } -+ -+static struct of_device_id gpio_export_ids[] = { -+ { .compatible = "gpio-export" }, -+ { /* sentinel */ } -+}; -+ -+static int __init of_gpio_export_probe(struct platform_device *pdev) -+{ -+ struct device_node *np = pdev->dev.of_node; -+ struct device_node *cnp; -+ u32 val; -+ int nb = 0; -+ -+ for_each_child_of_node(np, cnp) { -+ const char *name = NULL; -+ int gpio; -+ bool dmc; -+ int max_gpio = 1; -+ int i; -+ -+ of_property_read_string(cnp, "gpio-export,name", &name); -+ -+ if (!name) -+ max_gpio = of_gpio_count(cnp); -+ -+ for (i = 0; i < max_gpio; i++) { -+ unsigned flags = 0; -+ enum of_gpio_flags of_flags; -+ -+ gpio = of_get_gpio_flags(cnp, i, &of_flags); -+ -+ if (of_flags == OF_GPIO_ACTIVE_LOW) -+ flags |= GPIOF_ACTIVE_LOW; -+ -+ if (!of_property_read_u32(cnp, "gpio-export,output", &val)) -+ flags |= val ? GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW; -+ else -+ flags |= GPIOF_IN; -+ -+ if (devm_gpio_request_one(&pdev->dev, gpio, flags, name ? name : of_node_full_name(np))) -+ continue; -+ -+ dmc = of_property_read_bool(cnp, "gpio-export,direction_may_change"); -+ gpio_export_with_name(gpio, dmc, name); -+ nb++; -+ } -+ } -+ -+ dev_info(&pdev->dev, "%d gpio(s) exported\n", nb); -+ -+ return 0; -+} -+ -+static struct platform_driver gpio_export_driver = { -+ .driver = { -+ .name = "gpio-export", -+ .owner = THIS_MODULE, -+ .of_match_table = of_match_ptr(gpio_export_ids), -+ }, -+}; -+ -+static int __init of_gpio_export_init(void) -+{ -+ return platform_driver_probe(&gpio_export_driver, of_gpio_export_probe); -+} -+device_initcall(of_gpio_export_init); ---- a/drivers/gpio/gpiolib-sysfs.c -+++ b/drivers/gpio/gpiolib-sysfs.c -@@ -544,7 +544,7 @@ static struct class gpio_class = { - * - * Returns zero on success, else an error. - */ --int gpiod_export(struct gpio_desc *desc, bool direction_may_change) -+int __gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name) - { - struct gpio_chip *chip; - struct gpio_device *gdev; -@@ -606,6 +606,8 @@ int gpiod_export(struct gpio_desc *desc, - offset = gpio_chip_hwgpio(desc); - if (chip->names && chip->names[offset]) - ioname = chip->names[offset]; -+ if (name) -+ ioname = name; - - dev = device_create_with_groups(&gpio_class, &gdev->dev, - MKDEV(0, 0), data, gpio_groups, -@@ -627,6 +629,12 @@ err_unlock: - gpiod_dbg(desc, "%s: status %d\n", __func__, status); - return status; - } -+EXPORT_SYMBOL_GPL(__gpiod_export); -+ -+int gpiod_export(struct gpio_desc *desc, bool direction_may_change) -+{ -+ return __gpiod_export(desc, direction_may_change, NULL); -+} - EXPORT_SYMBOL_GPL(gpiod_export); - - static int match_export(struct device *dev, const void *desc) ---- a/include/asm-generic/gpio.h -+++ b/include/asm-generic/gpio.h -@@ -126,6 +126,12 @@ static inline int gpio_export(unsigned g - return gpiod_export(gpio_to_desc(gpio), direction_may_change); - } - -+int __gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name); -+static inline int gpio_export_with_name(unsigned gpio, bool direction_may_change, const char *name) -+{ -+ return __gpiod_export(gpio_to_desc(gpio), direction_may_change, name); -+} -+ - static inline int gpio_export_link(struct device *dev, const char *name, - unsigned gpio) - { ---- a/include/linux/gpio/consumer.h -+++ b/include/linux/gpio/consumer.h -@@ -427,6 +427,7 @@ static inline struct gpio_desc *devm_get - - #if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS) - -+int _gpiod_export(struct gpio_desc *desc, bool direction_may_change, const char *name); - int gpiod_export(struct gpio_desc *desc, bool direction_may_change); - int gpiod_export_link(struct device *dev, const char *name, - struct gpio_desc *desc); -@@ -434,6 +435,13 @@ void gpiod_unexport(struct gpio_desc *de - - #else /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */ - -+static inline int _gpiod_export(struct gpio_desc *desc, -+ bool direction_may_change, -+ const char *name) -+{ -+ return -ENOSYS; -+} -+ - static inline int gpiod_export(struct gpio_desc *desc, - bool direction_may_change) - { diff --git a/target/linux/ipq806x/patches-4.9/996-ATAG_DTB_COMPAT_CMDLINE_MANGLE.patch b/target/linux/ipq806x/patches-4.9/996-ATAG_DTB_COMPAT_CMDLINE_MANGLE.patch deleted file mode 100644 index 36490a2ebc..0000000000 --- a/target/linux/ipq806x/patches-4.9/996-ATAG_DTB_COMPAT_CMDLINE_MANGLE.patch +++ /dev/null @@ -1,185 +0,0 @@ -Author: Adrian Panella -Date: Fri Jun 10 19:10:15 2016 -0500 - -generic: Mangle bootloader's kernel arguments - -The command-line arguments provided by the boot loader will be -appended to a new device tree property: bootloader-args. -If there is a property "append-rootblock" in DT under /chosen -and a root= option in bootloaders command line it will be parsed -and added to DT bootargs with the form: XX. -Only command line ATAG will be processed, the rest of the ATAGs -sent by bootloader will be ignored. -This is usefull in dual boot systems, to get the current root partition -without afecting the rest of the system. - - -Signed-off-by: Adrian Panella - ---- a/arch/arm/Kconfig -+++ b/arch/arm/Kconfig -@@ -1949,6 +1949,17 @@ config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEN - The command-line arguments provided by the boot loader will be - appended to the the device tree bootargs property. - -+config ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE -+ bool "Append rootblock parsing bootloader's kernel arguments" -+ help -+ The command-line arguments provided by the boot loader will be -+ appended to a new device tree property: bootloader-args. -+ If there is a property "append-rootblock" in DT under /chosen -+ and a root= option in bootloaders command line it will be parsed -+ and added to DT bootargs with the form: XX. -+ Only command line ATAG will be processed, the rest of the ATAGs -+ sent by bootloader will be ignored. -+ - endchoice - - config CMDLINE ---- a/arch/arm/boot/compressed/atags_to_fdt.c -+++ b/arch/arm/boot/compressed/atags_to_fdt.c -@@ -3,6 +3,8 @@ - - #if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND) - #define do_extend_cmdline 1 -+#elif defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) -+#define do_extend_cmdline 1 - #else - #define do_extend_cmdline 0 - #endif -@@ -66,6 +68,59 @@ static uint32_t get_cell_size(const void - return cell_size; - } - -+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) -+ -+static char *append_rootblock(char *dest, const char *str, int len, void *fdt) -+{ -+ char *ptr, *end; -+ char *root="root="; -+ int i, l; -+ const char *rootblock; -+ -+ //ARM doesn't have __HAVE_ARCH_STRSTR, so search manually -+ ptr = str - 1; -+ -+ do { -+ //first find an 'r' at the begining or after a space -+ do { -+ ptr++; -+ ptr = strchr(ptr, 'r'); -+ if(!ptr) return dest; -+ -+ } while (ptr != str && *(ptr-1) != ' '); -+ -+ //then check for the rest -+ for(i = 1; i <= 4; i++) -+ if(*(ptr+i) != *(root+i)) break; -+ -+ } while (i != 5); -+ -+ end = strchr(ptr, ' '); -+ end = end ? (end - 1) : (strchr(ptr, 0) - 1); -+ -+ //find partition number (assumes format root=/dev/mtdXX | /dev/mtdblockXX | yy:XX ) -+ for( i = 0; end >= ptr && *end >= '0' && *end <= '9'; end--, i++); -+ ptr = end + 1; -+ -+ /* if append-rootblock property is set use it to append to command line */ -+ rootblock = getprop(fdt, "/chosen", "append-rootblock", &l); -+ if(rootblock != NULL) { -+ if(*dest != ' ') { -+ *dest = ' '; -+ dest++; -+ len++; -+ } -+ if (len + l + i <= COMMAND_LINE_SIZE) { -+ memcpy(dest, rootblock, l); -+ dest += l - 1; -+ memcpy(dest, ptr, i); -+ dest += i; -+ } -+ } -+ return dest; -+} -+#endif -+ - static void merge_fdt_bootargs(void *fdt, const char *fdt_cmdline) - { - char cmdline[COMMAND_LINE_SIZE]; -@@ -85,12 +140,21 @@ static void merge_fdt_bootargs(void *fdt - - /* and append the ATAG_CMDLINE */ - if (fdt_cmdline) { -+ -+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) -+ //save original bootloader args -+ //and append ubi.mtd with root partition number to current cmdline -+ setprop_string(fdt, "/chosen", "bootloader-args", fdt_cmdline); -+ ptr = append_rootblock(ptr, fdt_cmdline, len, fdt); -+ -+#else - len = strlen(fdt_cmdline); - if (ptr - cmdline + len + 2 < COMMAND_LINE_SIZE) { - *ptr++ = ' '; - memcpy(ptr, fdt_cmdline, len); - ptr += len; - } -+#endif - } - *ptr = '\0'; - -@@ -147,7 +211,9 @@ int atags_to_fdt(void *atag_list, void * - else - setprop_string(fdt, "/chosen", "bootargs", - atag->u.cmdline.cmdline); -- } else if (atag->hdr.tag == ATAG_MEM) { -+ } -+#ifndef CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE -+ else if (atag->hdr.tag == ATAG_MEM) { - if (memcount >= sizeof(mem_reg_property)/4) - continue; - if (!atag->u.mem.size) -@@ -186,6 +252,10 @@ int atags_to_fdt(void *atag_list, void * - setprop(fdt, "/memory", "reg", mem_reg_property, - 4 * memcount * memsize); - } -+#else -+ -+ } -+#endif - - return fdt_pack(fdt); - } ---- a/init/main.c -+++ b/init/main.c -@@ -88,6 +88,10 @@ - #include - #include - -+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) -+#include -+#endif -+ - static int kernel_init(void *); - - extern void init_IRQ(void); -@@ -538,6 +542,18 @@ asmlinkage __visible void __init start_k - page_alloc_init(); - - pr_notice("Kernel command line: %s\n", boot_command_line); -+ -+#if defined(CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_MANGLE) -+ //Show bootloader's original command line for reference -+ if(of_chosen) { -+ const char *prop = of_get_property(of_chosen, "bootloader-args", NULL); -+ if(prop) -+ pr_notice("Bootloader command line (ignored): %s\n", prop); -+ else -+ pr_notice("Bootloader command line not present\n"); -+ } -+#endif -+ - parse_early_param(); - after_dashes = parse_args("Booting kernel", - static_command_line, __start___param,