diff options
| author | Johan Rudholm <johan.rudholm@stericsson.com> | 2011-10-07 15:58:24 +0100 |
|---|---|---|
| committer | Ulf HANSSON <ulf.hansson@stericsson.com> | 2011-10-14 14:48:41 +0200 |
| commit | 3dfb953898739d57a81e6ec47149c45d0cf67812 (patch) | |
| tree | 13984bc2b6d30d8508757b16ad89a9442c60bdce /include | |
| parent | 3cc30c501bcdbd06ca984ea81573ffe79b397f73 (diff) | |
mmc: boot partition lock support
Enable boot partitions to be power and permanently locked via
a sysfs ro_lock node.
ST-Ericsson ID: 344197
ST-Ericsson FOSS-OUT ID: Trivial
ST-Ericsson Linux next: NA
Change-Id: I5534c12b0c1867d562e27a2fb2012624ad3009b4
Signed-off-by: John Beckett <john.beckett@stericsson.com>
Signed-off-by: Johan Rudholm <johan.rudholm@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/33117
Reviewed-by: Ulf HANSSON <ulf.hansson@stericsson.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/card.h | 14 | ||||
| -rw-r--r-- | include/linux/mmc/mmc.h | 6 |
2 files changed, 19 insertions, 1 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 0482d7f9d7d..638fc9e103d 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -66,6 +66,7 @@ struct mmc_ext_csd { bool enhanced_area_en; /* enable bit */ unsigned long long enhanced_area_offset; /* Units: Byte */ unsigned int enhanced_area_size; /* Units: KB */ + unsigned int boot_locked; u8 raw_partition_support; /* 160 */ u8 raw_erased_mem_count; /* 181 */ u8 raw_ext_csd_structure; /* 194 */ @@ -167,6 +168,14 @@ struct sdio_func_tuple; #define MMC_NUM_PHY_PARTITION 6 /* + * Partition area type, boot or gp + */ +enum mmc_part_area_type { + MMC_BLK_DATA_AREA_BOOT, + MMC_BLK_DATA_AREA_GP, +}; + +/* * MMC Physical partitions */ struct mmc_part { @@ -174,6 +183,7 @@ struct mmc_part { unsigned int part_cfg; /* partition type */ char name[DISK_NAME_LEN]; bool force_ro; /* to make boot parts RO by default */ + int area_type; }; /* @@ -244,12 +254,14 @@ struct mmc_card { * This function fill contents in mmc_part. */ static inline void mmc_part_add(struct mmc_card *card, unsigned int size, - unsigned int part_cfg, char *name, int idx, bool ro) + unsigned int part_cfg, char *name, int idx, bool ro, + int area_type) { card->part[card->nr_parts].size = size; card->part[card->nr_parts].part_cfg = part_cfg; sprintf(card->part[card->nr_parts].name, name, idx); card->part[card->nr_parts].force_ro = ro; + card->part[card->nr_parts].area_type = area_type; card->nr_parts++; } diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 218217d3da4..a0df80d500d 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -275,6 +275,7 @@ struct _mmc_csd { #define EXT_CSD_PARTITION_SUPPORT 160 /* RO */ #define EXT_CSD_RST_N_FUNCTION 162 /* R/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 */ @@ -313,6 +314,11 @@ 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) |