The regression is caused by the following commit ... commit 79f7ae7c45a6ccf04e2908337461dee615f6afb0 Author: Seungwon Jeon <tgih.jun@xxxxxxxxxxx> Date: Fri Mar 14 21:11:56 2014 +0900 mmc: clarify DDR timing mode between SD-UHS and eMMC This change distinguishes DDR timing mode of current mixed usage to clarify device type. Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx> Acked-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Signed-off-by: Chris Ball <chris@xxxxxxxxxx> ... and the line below. @@ -1264,7 +1264,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, goto err; } mmc_card_set_ddr_mode(card); - mmc_set_timing(card->host, MMC_TIMING_UHS_DDR50); + mmc_set_timing(card->host, MMC_TIMING_MMC_DDR52); mmc_set_bus_width(card->host, bus_width); } } It's caused by the platform driver was still using MMC_TIMING_UHS_DDR50 for MMC DDR mode which needs update too. Reported-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx> Reported-by: Shawn Guo <shawn.guo@xxxxxxxxxxxxx> Signed-off-by: Dong Aisheng <b29396@xxxxxxxxxxxxx> --- drivers/mmc/host/sdhci-esdhc-imx.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index b841bb7..16e4219 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -858,6 +858,7 @@ static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs) imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR104; break; case MMC_TIMING_UHS_DDR50: + case MMC_TIMING_MMC_DDR52: imx_data->uhs_mode = SDHCI_CTRL_UHS_DDR50; writel(readl(host->ioaddr + ESDHC_MIX_CTRL) | ESDHC_MIX_CTRL_DDREN, -- 1.7.8 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
