diff options
| author | Johan Rudholm <johan.rudholm@stericsson.com> | 2011-12-02 11:51:06 +0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-01-12 08:58:43 +0400 |
| commit | add710eaa88606de8ba98a014d37178579e6dbaf (patch) | |
| tree | 2d719508cabd213d5923cef95fdd3d6c9c40d977 /include/linux/mmc/mmc.h | |
| parent | 92df954df3422a7dcf99eea34cf4cb68bb06ea08 (diff) | |
| download | linux-add710eaa88606de8ba98a014d37178579e6dbaf.tar.xz | |
mmc: boot partition ro lock support
Enable boot partitions to be read-only locked until next power on via
a sysfs entry. There will be one sysfs entry for each boot partition:
/sys/block/mmcblkXbootY/ro_lock_until_next_power_on
Each boot partition is locked by writing 1 to its file.
Signed-off-by: Johan Rudholm <johan.rudholm@stericsson.com>
Signed-off-by: John Beckett <john.beckett@stericsson.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 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 0e7135697d11..665548e639e8 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -280,6 +280,7 @@ struct _mmc_csd { #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */ #define EXT_CSD_SANITIZE_START 165 /* W */ #define EXT_CSD_WR_REL_PARAM 166 /* RO */ +#define EXT_CSD_BOOT_WP 173 /* R/W */ #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ #define EXT_CSD_PART_CONFIG 179 /* R/W */ #define EXT_CSD_ERASED_MEM_CONT 181 /* RO */ @@ -321,6 +322,11 @@ struct _mmc_csd { #define EXT_CSD_WR_REL_PARAM_EN (1<<2) +#define EXT_CSD_BOOT_WP_B_PWR_WP_DIS (0x40) +#define EXT_CSD_BOOT_WP_B_PERM_WP_DIS (0x10) +#define EXT_CSD_BOOT_WP_B_PERM_WP_EN (0x04) +#define EXT_CSD_BOOT_WP_B_PWR_WP_EN (0x01) + #define EXT_CSD_PART_CONFIG_ACC_MASK (0x7) #define EXT_CSD_PART_CONFIG_ACC_BOOT0 (0x1) #define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4) |