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mmc: omap_hsmmc: Fix UHS card with DDR50 support 

The commit, mmc: omap: clarify DDR timing mode between SD-UHS and eMMC,
switched omap_hsmmc to support MMC DDR mode instead of UHS DDR50 mode.

Add UHS DDR50 mode again and this time let's also keep the MMC DDR mode.

Fixes: 5438ad95a5 (mmc: omap: clarify DDR timing mode between SD-UHS and eMMC)
Reported-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
wifi-calibration
Ulf Hansson 2014-11-25 13:05:13 +01:00
parent 996903de92
commit 903101a839
1 changed files with 3 additions and 1 deletions
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4
drivers/mmc/host/omap_hsmmc.c
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@ -628,6 +628,7 @@ static void omap_hsmmc_set_clock(struct omap_hsmmc_host *host)
*/
if ((mmc_pdata(host)->features & HSMMC_HAS_HSPE_SUPPORT) &&
(ios->timing != MMC_TIMING_MMC_DDR52) &&
(ios->timing != MMC_TIMING_UHS_DDR50) &&
((OMAP_HSMMC_READ(host->base, CAPA) & HSS) == HSS)) {
regval = OMAP_HSMMC_READ(host->base, HCTL);
if (clkdiv && (clk_get_rate(host->fclk)/clkdiv) > 25000000)
@ -647,7 +648,8 @@ static void omap_hsmmc_set_bus_width(struct omap_hsmmc_host *host)
u32 con;
con = OMAP_HSMMC_READ(host->base, CON);
if (ios->timing == MMC_TIMING_MMC_DDR52)
if (ios->timing == MMC_TIMING_MMC_DDR52 ||
ios->timing == MMC_TIMING_UHS_DDR50)
con |= DDR; /* configure in DDR mode */
else
con &= ~DDR;