diff options
| author | Johan Rudholm <johan.rudholm@stericsson.com> | 2011-10-07 15:58:24 +0100 |
|---|---|---|
| committer | Robert Marklund <robert.marklund@stericsson.com> | 2011-10-27 16:09:07 +0200 |
| commit | 42a2365af06e733c7eeb7a03ab8433348b69f325 (patch) | |
| tree | a2f5f74f8d58ea3bfed1101ed5da63678cf540f6 /drivers/mmc/core/mmc.c | |
| parent | fae5a4b5eb597465d2e70ee93388bf9327345263 (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 'drivers/mmc/core/mmc.c')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 7dde373d143..903c70b8ac4 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -339,6 +339,15 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) card->ext_csd.rel_sectors = ext_csd[EXT_CSD_REL_WR_SEC_C]; /* + * Note that the call to mmc_part_add defaults to read + * only. If this default assumption is changed, the call must + * take into account the value of boot_locked below. + */ + card->ext_csd.boot_locked = ext_csd[EXT_CSD_BOOT_WP] & + (EXT_CSD_BOOT_WP_B_PERM_WP_EN | + EXT_CSD_BOOT_WP_B_PWR_WP_EN); + + /* * There are two boot regions of equal size, defined in * multiples of 128K. */ @@ -347,7 +356,7 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) part_size = ext_csd[EXT_CSD_BOOT_MULT] << 17; mmc_part_add(card, part_size, EXT_CSD_PART_CONFIG_ACC_BOOT0 + idx, - "boot%d", idx, true); + "boot%d", idx, true, MMC_BLK_DATA_AREA_BOOT); } } } @@ -434,7 +443,8 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) hc_wp_grp_sz); mmc_part_add(card, part_size << 19, EXT_CSD_PART_CONFIG_ACC_GP0 + idx, - "gp%d", idx, false); + "gp%d", idx, false, + MMC_BLK_DATA_AREA_GP); } } card->ext_csd.sec_trim_mult = |