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authorJisheng Zhang <jszhang@marvell.com>2015-08-18 08:21:39 (GMT)
committerUlf Hansson <ulf.hansson@linaro.org>2015-08-27 12:50:54 (GMT)
commit0dafa60eb2506617e6968b97cc5a44914a7fb1a6 (patch)
tree4020974627077e4b09c1dfe422918adac56196c7 /drivers/mmc
parentf912632b6086d4464af2443dee0c6f4055cf5159 (diff)
downloadlinux-0dafa60eb2506617e6968b97cc5a44914a7fb1a6.tar.xz
mmc: sdhci: also get preset value and driver type for MMC_DDR52
commit bb8175a8aa42 ("mmc: sdhci: clarify DDR timing mode between SD-UHS and eMMC") added MMC_DDR52 as eMMC's DDR mode to be distinguished from SD-UHS, but it missed setting driver type for MMC_DDR52 timing mode. So sometimes we get the following error on Marvell BG2Q DMP board: [ 1.559598] mmcblk0: error -84 transferring data, sector 0, nr 8, cmd response 0x900, card status 0xb00 [ 1.569314] mmcblk0: retrying using single block read [ 1.575676] mmcblk0: error -84 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0 [ 1.585202] blk_update_request: I/O error, dev mmcblk0, sector 2 [ 1.591818] mmcblk0: error -84 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0 [ 1.601341] blk_update_request: I/O error, dev mmcblk0, sector 3 This patches fixes this by adding the missing driver type setting. Fixes: bb8175a8aa42 ("mmc: sdhci: clarify DDR timing mode ...") Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 31678b5..64b7fdb 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1134,6 +1134,7 @@ static u16 sdhci_get_preset_value(struct sdhci_host *host)
preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR104);
break;
case MMC_TIMING_UHS_DDR50:
+ case MMC_TIMING_MMC_DDR52:
preset = sdhci_readw(host, SDHCI_PRESET_FOR_DDR50);
break;
case MMC_TIMING_MMC_HS400:
@@ -1575,7 +1576,8 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
(ios->timing == MMC_TIMING_UHS_SDR25) ||
(ios->timing == MMC_TIMING_UHS_SDR50) ||
(ios->timing == MMC_TIMING_UHS_SDR104) ||
- (ios->timing == MMC_TIMING_UHS_DDR50))) {
+ (ios->timing == MMC_TIMING_UHS_DDR50) ||
+ (ios->timing == MMC_TIMING_MMC_DDR52))) {
u16 preset;
sdhci_enable_preset_value(host, true);