ARM : Add GPIO Driver and IOMUX definition for S3C2440

[oweals/u-boot.git] / drivers / mmc / sdhci.c

diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index fce0ef091184b39e07adf8a0acc8c29ab6a2d3dc..2e3c408bc55ab2a0d50b07a88d676fe1d70f135c 100644 (file)
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -128,6 +128,7 @@ int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
        int trans_bytes = 0, is_aligned = 1;
        u32 mask, flags, mode;
        unsigned int timeout, start_addr = 0;
+       unsigned int retry = 10000;
 
        /* Wait max 10 ms */
        timeout = 10;
@@ -210,8 +211,19 @@ int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
                stat = sdhci_readl(host, SDHCI_INT_STATUS);
                if (stat & SDHCI_INT_ERROR)
                        break;
+               if (--retry == 0)
+                       break;
        } while ((stat & mask) != mask);
 
+       if (retry == 0) {
+               if (host->quirks & SDHCI_QUIRK_BROKEN_R1B)
+                       return 0;
+               else {
+                       printf("Timeout for status update!\n");
+                       return TIMEOUT;
+               }
+       }
+
        if ((stat & (SDHCI_INT_ERROR | mask)) == mask) {
                sdhci_cmd_done(host, cmd);
                sdhci_writel(host, mask, SDHCI_INT_STATUS);
@@ -248,7 +260,7 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
        if (clock == 0)
                return 0;
 
-       if (host->version >= SDHCI_SPEC_300) {
+       if ((host->version & SDHCI_SPEC_VER_MASK) >= SDHCI_SPEC_300) {
                /* Version 3.00 divisors must be a multiple of 2. */
                if (mmc->f_max <= clock)
                        div = 1;
@@ -267,6 +279,9 @@ static int sdhci_set_clock(struct mmc *mmc, unsigned int clock)
        }
        div >>= 1;
 
+       if (host->set_clock)
+               host->set_clock(host->index, div);
+
        clk = (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
        clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)
                << SDHCI_DIVIDER_HI_SHIFT;
@@ -325,6 +340,9 @@ void sdhci_set_ios(struct mmc *mmc)
        u32 ctrl;
        struct sdhci_host *host = (struct sdhci_host *)mmc->priv;
 
+       if (host->set_control_reg)
+               host->set_control_reg(host);
+
        if (mmc->clock != host->clock)
                sdhci_set_clock(mmc, mmc->clock);
 
@@ -332,10 +350,10 @@ void sdhci_set_ios(struct mmc *mmc)
        ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
        if (mmc->bus_width == 8) {
                ctrl &= ~SDHCI_CTRL_4BITBUS;
-               if (host->version >= SDHCI_SPEC_300)
+               if ((host->version & SDHCI_SPEC_VER_MASK) >= SDHCI_SPEC_300)
                        ctrl |= SDHCI_CTRL_8BITBUS;
        } else {
-               if (host->version >= SDHCI_SPEC_300)
+               if ((host->version & SDHCI_SPEC_VER_MASK) >= SDHCI_SPEC_300)
                        ctrl &= ~SDHCI_CTRL_8BITBUS;
                if (mmc->bus_width == 4)
                        ctrl |= SDHCI_CTRL_4BITBUS;
@@ -348,6 +366,9 @@ void sdhci_set_ios(struct mmc *mmc)
        else
                ctrl &= ~SDHCI_CTRL_HISPD;
 
+       if (host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)
+               ctrl &= ~SDHCI_CTRL_HISPD;
+
        sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
 }
 
@@ -363,12 +384,25 @@ int sdhci_init(struct mmc *mmc)
                }
        }
 
+       sdhci_set_power(host, fls(mmc->voltages) - 1);
+
+       if (host->quirks & SDHCI_QUIRK_NO_CD) {
+               unsigned int status;
+
+               sdhci_writel(host, SDHCI_CTRL_CD_TEST_INS | SDHCI_CTRL_CD_TEST,
+                       SDHCI_HOST_CONTROL);
+
+               status = sdhci_readl(host, SDHCI_PRESENT_STATE);
+               while ((!(status & SDHCI_CARD_PRESENT)) ||
+                   (!(status & SDHCI_CARD_STATE_STABLE)) ||
+                   (!(status & SDHCI_CARD_DETECT_PIN_LEVEL)))
+                       status = sdhci_readl(host, SDHCI_PRESENT_STATE);
+       }
+
        /* Eable all state */
        sdhci_writel(host, SDHCI_INT_ALL_MASK, SDHCI_INT_ENABLE);
        sdhci_writel(host, SDHCI_INT_ALL_MASK, SDHCI_SIGNAL_ENABLE);
 
-       sdhci_set_power(host, fls(mmc->voltages) - 1);
-
        return 0;
 }
 
@@ -390,6 +424,7 @@ int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
        mmc->send_cmd = sdhci_send_command;
        mmc->set_ios = sdhci_set_ios;
        mmc->init = sdhci_init;
+       mmc->getcd = NULL;
 
        caps = sdhci_readl(host, SDHCI_CAPABILITIES);
 #ifdef CONFIG_MMC_SDMA
@@ -402,7 +437,7 @@ int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
        if (max_clk)
                mmc->f_max = max_clk;
        else {
-               if (host->version >= SDHCI_SPEC_300)
+               if ((host->version & SDHCI_SPEC_VER_MASK) >= SDHCI_SPEC_300)
                        mmc->f_max = (caps & SDHCI_CLOCK_V3_BASE_MASK)
                                >> SDHCI_CLOCK_BASE_SHIFT;
                else
@@ -417,7 +452,7 @@ int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
        if (min_clk)
                mmc->f_min = min_clk;
        else {
-               if (host->version >= SDHCI_SPEC_300)
+               if ((host->version & SDHCI_SPEC_VER_MASK) >= SDHCI_SPEC_300)
                        mmc->f_min = mmc->f_max / SDHCI_MAX_DIV_SPEC_300;
                else
                        mmc->f_min = mmc->f_max / SDHCI_MAX_DIV_SPEC_200;
@@ -430,9 +465,15 @@ int add_sdhci(struct sdhci_host *host, u32 max_clk, u32 min_clk)
                mmc->voltages |= MMC_VDD_29_30 | MMC_VDD_30_31;
        if (caps & SDHCI_CAN_VDD_180)
                mmc->voltages |= MMC_VDD_165_195;
+
+       if (host->quirks & SDHCI_QUIRK_BROKEN_VOLTAGE)
+               mmc->voltages |= host->voltages;
+
        mmc->host_caps = MMC_MODE_HS | MMC_MODE_HS_52MHz | MMC_MODE_4BIT;
        if (caps & SDHCI_CAN_DO_8BIT)
                mmc->host_caps |= MMC_MODE_8BIT;
+       if (host->host_caps)
+               mmc->host_caps |= host->host_caps;
 
        sdhci_reset(host, SDHCI_RESET_ALL);
        mmc_register(mmc);