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

Added MMC_DDR52 as eMMC's DDR mode is distinguished from SD-UHS.

Signed-off-by: Seungwon Jeon <tgih.jun@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/sdhci.c b/drivers/mmc/host/sdhci.c
index 9a79fc4b60ca82bb7319fa34a3ae2d79d093833e..a31f06dadf6fff874a32d0ad2b20c02d8b01095b 100644 (file)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1510,6 +1510,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
 
                /* In case of UHS-I modes, set High Speed Enable */
                if ((ios->timing == MMC_TIMING_MMC_HS200) ||
+                   (ios->timing == MMC_TIMING_MMC_DDR52) ||
                    (ios->timing == MMC_TIMING_UHS_SDR50) ||
                    (ios->timing == MMC_TIMING_UHS_SDR104) ||
                    (ios->timing == MMC_TIMING_UHS_DDR50) ||
@@ -1570,7 +1571,8 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
                                ctrl_2 |= SDHCI_CTRL_UHS_SDR25;
                        else if (ios->timing == MMC_TIMING_UHS_SDR50)
                                ctrl_2 |= SDHCI_CTRL_UHS_SDR50;
-                       else if (ios->timing == MMC_TIMING_UHS_DDR50)
+                       else if ((ios->timing == MMC_TIMING_UHS_DDR50) ||
+                                (ios->timing == MMC_TIMING_MMC_DDR52))
                                ctrl_2 |= SDHCI_CTRL_UHS_DDR50;
                        sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);
                }