diff options
| author | Saugata Das <saugata.das@linaro.org> | 2011-12-21 13:09:17 +0530 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-03-25 19:33:44 -0400 |
| commit | 4265900e0be653f5b78baf2816857ef57cf1332f (patch) | |
| tree | 156dc60c8f5b24aa0c8be7d18759faae6ecff5f7 /include/linux/mmc/mmc.h | |
| parent | e2a0883e4071237d09b604a342c28b96b44a04b3 (diff) | |
mmc: MMC-4.5 Data Tag Support
MMC-4.5 data tag feature will be used to store the file system meta-data
in the tagged region of eMMC. This will improve the write and subsequent
read transfer time for the meta data.
Signed-off-by: Saugata Das <saugata.das@linaro.org>
Tested-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc/mmc.h')
| -rw-r--r-- | include/linux/mmc/mmc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index fb9f6e116e1..b822a2cb600 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -274,6 +274,7 @@ struct _mmc_csd { #define EXT_CSD_FLUSH_CACHE 32 /* W */ #define EXT_CSD_CACHE_CTRL 33 /* R/W */ #define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */ +#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */ #define EXT_CSD_GP_SIZE_MULT 143 /* R/W */ #define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */ #define EXT_CSD_PARTITION_SUPPORT 160 /* RO */ @@ -315,6 +316,8 @@ struct _mmc_csd { #define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */ #define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */ #define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */ +#define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */ +#define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */ #define EXT_CSD_HPI_FEATURES 503 /* RO */ /* |