mmc: dw_mmc: clarify DDR timing mode between SD-UHS and eMMC

Replaced UHS_DDR50 with MMC_DDR52. And MMC_CAP_UHS_DDR50
is removed because of non-implementation of UHS signaling.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 3423c5e..a67e784 100644 (file)
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -187,7 +187,7 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios)
        unsigned long actual;
        u8 div = priv->ciu_div + 1;
 
-       if (ios->timing == MMC_TIMING_UHS_DDR50) {
+       if (ios->timing == MMC_TIMING_MMC_DDR52) {
                mci_writel(host, CLKSEL, priv->ddr_timing);
                /* Should be double rate for DDR mode */
                if (ios->bus_width == MMC_BUS_WIDTH_8)
@@ -386,8 +386,7 @@ static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot, u32 opcode,
 
 /* Common capabilities of Exynos4/Exynos5 SoC */
 static unsigned long exynos_dwmmc_caps[4] = {
-       MMC_CAP_UHS_DDR50 | MMC_CAP_1_8V_DDR |
-               MMC_CAP_8_BIT_DATA | MMC_CAP_CMD23,
+       MMC_CAP_1_8V_DDR | MMC_CAP_8_BIT_DATA | MMC_CAP_CMD23,
        MMC_CAP_CMD23,
        MMC_CAP_CMD23,
        MMC_CAP_CMD23,

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index cced599..637f52a 100644 (file)
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -962,7 +962,7 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
        regs = mci_readl(slot->host, UHS_REG);
 
        /* DDR mode set */
-       if (ios->timing == MMC_TIMING_UHS_DDR50)
+       if (ios->timing == MMC_TIMING_MMC_DDR52)
                regs |= ((0x1 << slot->id) << 16);
        else
                regs &= ~((0x1 << slot->id) << 16);