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mmc: check the revision for sd3.0 

Support to check whether the SD3.0 or not.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Rommel Custodio <sessyargc@gmail.com>
This commit is contained in:
Jaehoon Chung 2013-01-29 22:58:16 +00:00 committed by Tom Rini
parent 64f4a6192f
commit 1741c64d64
2 changed files with 3 additions and 0 deletions
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2
drivers/mmc/mmc.c
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@ -784,6 +784,8 @@ retry_scr:
break;
case 2:
mmc->version = SD_VERSION_2;
if ((mmc->scr[0] >> 15) & 0x1)
mmc->version = SD_VERSION_3;
break;
default:
mmc->version = SD_VERSION_1_0;

1
include/mmc.h
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@ -30,6 +30,7 @@
#include <linux/compiler.h>
#define SD_VERSION_SD 0x20000
#define SD_VERSION_3 (SD_VERSION_SD | 0x300)
#define SD_VERSION_2 (SD_VERSION_SD | 0x200)
#define SD_VERSION_1_0 (SD_VERSION_SD | 0x100)
#define SD_VERSION_1_10 (SD_VERSION_SD | 0x10a)