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/card.h | |
| parent | e2a0883e4071237d09b604a342c28b96b44a04b3 (diff) | |
| download | talos-op-linux-4265900e0be653f5b78baf2816857ef57cf1332f.tar.gz talos-op-linux-4265900e0be653f5b78baf2816857ef57cf1332f.zip | |
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/card.h')
| -rw-r--r-- | include/linux/mmc/card.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 19a41d1737af..1a1ca7169834 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -71,6 +71,8 @@ struct mmc_ext_csd { bool hpi_en; /* HPI enablebit */ bool hpi; /* HPI support bit */ unsigned int hpi_cmd; /* cmd used as HPI */ + unsigned int data_sector_size; /* 512 bytes or 4KB */ + unsigned int data_tag_unit_size; /* DATA TAG UNIT size */ unsigned int boot_ro_lock; /* ro lock support */ bool boot_ro_lockable; u8 raw_partition_support; /* 160 */ |
