@@ -1105,6 +1105,7 @@ 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;
default:
@@ -1545,7 +1546,8 @@ 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);
This is a note to let you know that I have just added a patch titled mmc: sdhci: also get preset value and driver type for MMC_DDR52 to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue This patch is scheduled to be released in version 3.16.7-ckt18. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.16.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ------ From f8a35b57821c6f73781067436c42acc042cd0a2c Mon Sep 17 00:00:00 2001 From: Jisheng Zhang <jszhang@marvell.com> Date: Tue, 18 Aug 2015 16:21:39 +0800 Subject: mmc: sdhci: also get preset value and driver type for MMC_DDR52 commit 0dafa60eb2506617e6968b97cc5a44914a7fb1a6 upstream. 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> Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/mmc/host/sdhci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)