Commit 7cc8d580 authored Oct 21, 2015 by Jaehoon Chung Committed by Ulf Hansson Oct 29, 2015

mmc: dw_mmc: fix the wrong setting for UHS-DDR50 mode



When card is running with DDR mode, dwmmc needs to set DDR_REG bit at
UHS_REG register.
Before this patch, dwmmc controller doesn't consider this.
If this patch is not applied, CRC or other error shoulds be occurred.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent 98daafd8

drivers/mmc/host/dw_mmc.c

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1293,6 +1293,7 @@ static void dw_mci_set_ios(struct mmc_host mmc, struct mmc_ios ios)

	/* DDR mode set */		/* DDR mode set */
	if (ios->timing == MMC_TIMING_MMC_DDR52 \|\|		if (ios->timing == MMC_TIMING_MMC_DDR52 \|\|
			ios->timing == MMC_TIMING_UHS_DDR50 \|\|
	ios->timing == MMC_TIMING_MMC_HS400)		ios->timing == MMC_TIMING_MMC_HS400)
	regs \|= ((0x1 << slot->id) << 16);		regs \|= ((0x1 << slot->id) << 16);
	else		else