Commit ed9dbb6e authored Oct 17, 2012 by Kevin Liu Committed by Chris Ball Dec 06, 2012

mmc: host: Make UHS timing values fully unique



Both of MMC_TIMING_LEGACY and MMC_TIMING_UHS_SDR12 are defined
to 0. And ios->timing is set to MMC_TIMING_LEGACY during power up.
But set_ios can't distinguish these two timing if host support
spec 3.0. Just adjust timing values to be different can resolve
this issue without any other impact.

Reviewed-by: Girish K S <girish.shivananjappa@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kevin Liu <kliu5@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

parent 35d110e7

include/linux/mmc/host.h

+6 −6

Original line number	Diff line number	Diff line
		@@ -53,12 +53,12 @@ struct mmc_ios {
		#define MMC_TIMING_LEGACY 0
		#define MMC_TIMING_MMC_HS 1
		#define MMC_TIMING_SD_HS 2
		#define MMC_TIMING_UHS_SDR12 MMC_TIMING_LEGACY
		#define MMC_TIMING_UHS_SDR25 MMC_TIMING_SD_HS
		#define MMC_TIMING_UHS_SDR50 3
		#define MMC_TIMING_UHS_SDR104 4
		#define MMC_TIMING_UHS_DDR50 5
		#define MMC_TIMING_MMC_HS200 6
		#define MMC_TIMING_UHS_SDR12 3
		#define MMC_TIMING_UHS_SDR25 4
		#define MMC_TIMING_UHS_SDR50 5
		#define MMC_TIMING_UHS_SDR104 6
		#define MMC_TIMING_UHS_DDR50 7
		#define MMC_TIMING_MMC_HS200 8

		#define MMC_SDR_MODE 0
		#define MMC_1_2V_DDR_MODE 1

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