From d6c40031d5c3f9e899d458a56fa78ecde626ec24 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Tue, 26 Sep 2017 20:05:34 +0200 Subject: [PATCH] mmc: uniphier-sd: Update the file to match V3 patchset Old version of the uniphier-sd 64bit IO support patchset V1 was applied by the maintainer, update the uniphier-sd.c with the changes from the V3 of the patchset. Signed-off-by: Marek Vasut Cc: Masahiro Yamada Cc: Jaehoon Chung Acked-by: Masahiro Yamada --- drivers/mmc/uniphier-sd.c | 83 ++++++++++++++++++++------------------- 1 file changed, 42 insertions(+), 41 deletions(-) diff --git a/drivers/mmc/uniphier-sd.c b/drivers/mmc/uniphier-sd.c index 0786ad0d5f..3c52161067 100644 --- a/drivers/mmc/uniphier-sd.c +++ b/drivers/mmc/uniphier-sd.c @@ -135,7 +135,7 @@ struct uniphier_sd_priv { #define UNIPHIER_SD_CAP_64BIT BIT(3) /* Controller is 64bit */ }; -static u64 uniphier_sd_readq(struct uniphier_sd_priv *priv, const u32 reg) +static u64 uniphier_sd_readq(struct uniphier_sd_priv *priv, unsigned int reg) { if (priv->caps & UNIPHIER_SD_CAP_64BIT) return readq(priv->regbase + (reg << 1)); @@ -144,7 +144,7 @@ static u64 uniphier_sd_readq(struct uniphier_sd_priv *priv, const u32 reg) } static void uniphier_sd_writeq(struct uniphier_sd_priv *priv, - const u64 val, const u32 reg) + u64 val, unsigned int reg) { if (priv->caps & UNIPHIER_SD_CAP_64BIT) writeq(val, priv->regbase + (reg << 1)); @@ -152,7 +152,7 @@ static void uniphier_sd_writeq(struct uniphier_sd_priv *priv, writeq(val, priv->regbase + reg); } -static u32 uniphier_sd_readl(struct uniphier_sd_priv *priv, const u32 reg) +static u32 uniphier_sd_readl(struct uniphier_sd_priv *priv, unsigned int reg) { if (priv->caps & UNIPHIER_SD_CAP_64BIT) return readl(priv->regbase + (reg << 1)); @@ -161,7 +161,7 @@ static u32 uniphier_sd_readl(struct uniphier_sd_priv *priv, const u32 reg) } static void uniphier_sd_writel(struct uniphier_sd_priv *priv, - const u32 val, const u32 reg) + u32 val, unsigned int reg) { if (priv->caps & UNIPHIER_SD_CAP_64BIT) writel(val, priv->regbase + (reg << 1)); @@ -246,7 +246,7 @@ static int uniphier_sd_wait_for_irq(struct udevice *dev, unsigned int reg, return 0; } -static int uniphier_sd_pio_read_one_block(struct udevice *dev, u32 **pbuf, +static int uniphier_sd_pio_read_one_block(struct udevice *dev, char *pbuf, uint blocksize) { struct uniphier_sd_priv *priv = dev_get_priv(dev); @@ -264,36 +264,33 @@ static int uniphier_sd_pio_read_one_block(struct udevice *dev, u32 **pbuf, */ uniphier_sd_writel(priv, 0, UNIPHIER_SD_INFO2); - if (likely(IS_ALIGNED((unsigned long)*pbuf, 4))) { - if (priv->caps & UNIPHIER_SD_CAP_64BIT) { + if (priv->caps & UNIPHIER_SD_CAP_64BIT) { + u64 *buf = (u64 *)pbuf; + if (likely(IS_ALIGNED((uintptr_t)buf, 8))) { for (i = 0; i < blocksize / 8; i++) { - u64 data; - data = uniphier_sd_readq(priv, - UNIPHIER_SD_BUF); - *(*pbuf)++ = data; - *(*pbuf)++ = data >> 32; + *buf++ = uniphier_sd_readq(priv, + UNIPHIER_SD_BUF); } } else { - for (i = 0; i < blocksize / 4; i++) { - u32 data; - data = uniphier_sd_readl(priv, UNIPHIER_SD_BUF); - *(*pbuf)++ = data; - } - } - } else { - if (priv->caps & UNIPHIER_SD_CAP_64BIT) { for (i = 0; i < blocksize / 8; i++) { u64 data; data = uniphier_sd_readq(priv, UNIPHIER_SD_BUF); - put_unaligned(data, (*pbuf)++); - put_unaligned(data >> 32, (*pbuf)++); + put_unaligned(data, buf++); + } + } + } else { + u32 *buf = (u32 *)pbuf; + if (likely(IS_ALIGNED((uintptr_t)buf, 4))) { + for (i = 0; i < blocksize / 4; i++) { + *buf++ = uniphier_sd_readl(priv, + UNIPHIER_SD_BUF); } } else { for (i = 0; i < blocksize / 4; i++) { u32 data; data = uniphier_sd_readl(priv, UNIPHIER_SD_BUF); - put_unaligned(data, (*pbuf)++); + put_unaligned(data, buf++); } } } @@ -302,7 +299,7 @@ static int uniphier_sd_pio_read_one_block(struct udevice *dev, u32 **pbuf, } static int uniphier_sd_pio_write_one_block(struct udevice *dev, - const u32 **pbuf, uint blocksize) + const char *pbuf, uint blocksize) { struct uniphier_sd_priv *priv = dev_get_priv(dev); int i, ret; @@ -315,31 +312,30 @@ static int uniphier_sd_pio_write_one_block(struct udevice *dev, uniphier_sd_writel(priv, 0, UNIPHIER_SD_INFO2); - if (likely(IS_ALIGNED((unsigned long)*pbuf, 4))) { - if (priv->caps & UNIPHIER_SD_CAP_64BIT) { + if (priv->caps & UNIPHIER_SD_CAP_64BIT) { + const u64 *buf = (const u64 *)pbuf; + if (likely(IS_ALIGNED((uintptr_t)buf, 8))) { for (i = 0; i < blocksize / 8; i++) { - u64 data = *(*pbuf)++; - data |= (u64)*(*pbuf)++ << 32; - uniphier_sd_writeq(priv, data, + uniphier_sd_writeq(priv, *buf++, UNIPHIER_SD_BUF); } } else { - for (i = 0; i < blocksize / 4; i++) { - uniphier_sd_writel(priv, *(*pbuf)++, + for (i = 0; i < blocksize / 8; i++) { + u64 data = get_unaligned(buf++); + uniphier_sd_writeq(priv, data, UNIPHIER_SD_BUF); } } } else { - if (priv->caps & UNIPHIER_SD_CAP_64BIT) { - for (i = 0; i < blocksize / 8; i++) { - u64 data = get_unaligned((*pbuf)++); - data |= (u64)get_unaligned((*pbuf)++) << 32; - uniphier_sd_writeq(priv, data, + const u32 *buf = (const u32 *)pbuf; + if (likely(IS_ALIGNED((uintptr_t)buf, 4))) { + for (i = 0; i < blocksize / 4; i++) { + uniphier_sd_writel(priv, *buf++, UNIPHIER_SD_BUF); } } else { for (i = 0; i < blocksize / 4; i++) { - u32 data = get_unaligned((*pbuf)++); + u32 data = get_unaligned(buf++); uniphier_sd_writel(priv, data, UNIPHIER_SD_BUF); } @@ -351,19 +347,24 @@ static int uniphier_sd_pio_write_one_block(struct udevice *dev, static int uniphier_sd_pio_xfer(struct udevice *dev, struct mmc_data *data) { - u32 *dest = (u32 *)data->dest; - const u32 *src = (const u32 *)data->src; + const char *src = data->src; + char *dest = data->dest; int i, ret; for (i = 0; i < data->blocks; i++) { if (data->flags & MMC_DATA_READ) - ret = uniphier_sd_pio_read_one_block(dev, &dest, + ret = uniphier_sd_pio_read_one_block(dev, dest, data->blocksize); else - ret = uniphier_sd_pio_write_one_block(dev, &src, + ret = uniphier_sd_pio_write_one_block(dev, src, data->blocksize); if (ret) return ret; + + if (data->flags & MMC_DATA_READ) + dest += data->blocksize; + else + src += data->blocksize; } return 0; -- 2.25.1