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authorUlf Hansson <ulf.hansson@linaro.org>2014-11-25 13:05:13 +0100
committerUlf Hansson <ulf.hansson@linaro.org>2014-11-26 14:40:39 +0100
commit903101a83949d6fc77c092cef07e9c1e10c07e46 (patch)
treecbe49cd9bf780ae112300069846d0952bbfafb0d /drivers/mmc
parent996903de92f0c7a32d8c83f37d7ebcea0def8660 (diff)
downloadop-kernel-dev-903101a83949d6fc77c092cef07e9c1e10c07e46.zip
op-kernel-dev-903101a83949d6fc77c092cef07e9c1e10c07e46.tar.gz
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: 5438ad95a57c (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>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/omap_hsmmc.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 82b40b8..7c71dcd 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -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;
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