diff options
| author | Tomas Melin | 2016-11-25 11:01:03 +0200 |
|---|---|---|
| committer | Jaehoon Chung | 2016-12-01 11:09:44 +0900 |
| commit | cd3d48807dfb64f521fcbc30034d4e921d842a5b (patch) | |
| tree | c0b1d7778cefb47b0af8cd5c5e8a42f882102529 /include | |
| parent | f0ecfc5e7e412c2098627cab2133fb2e284edfea (diff) | |
mmc: add bkops-enable command
Add new command that provides possibility to enable the
background operations handshake functionality
(BKOPS_EN, EXT_CSD byte [163]) on eMMC devices.
This is an optional feature of eMMCs, the setting is write-once.
The command must be explicitly taken into use with
CONFIG_CMD_BKOPS_ENABLE.
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/mmc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h index e815eb3736c..22853234b13 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -174,6 +174,7 @@ #define EXT_CSD_MAX_ENH_SIZE_MULT 157 /* R */ #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */ #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */ +#define EXT_CSD_BKOPS_EN 163 /* R/W & R/W/E */ #define EXT_CSD_WR_REL_PARAM 166 /* R */ #define EXT_CSD_WR_REL_SET 167 /* R/W */ #define EXT_CSD_RPMB_MULT 168 /* RO */ @@ -188,6 +189,7 @@ #define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */ #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ #define EXT_CSD_BOOT_MULT 226 /* RO */ +#define EXT_CSD_BKOPS_SUPPORT 502 /* RO */ /* * EXT_CSD field definitions @@ -540,6 +542,10 @@ int mmc_rpmb_read(struct mmc *mmc, void *addr, unsigned short blk, unsigned short cnt, unsigned char *key); int mmc_rpmb_write(struct mmc *mmc, void *addr, unsigned short blk, unsigned short cnt, unsigned char *key); +#ifdef CONFIG_CMD_BKOPS_ENABLE +int mmc_set_bkops_enable(struct mmc *mmc); +#endif + /** * Start device initialization and return immediately; it does not block on * polling OCR (operation condition register) status. Then you should call |