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authorLoic Pallardy <loic.pallardy-ext@stericsson.com>2012-11-17 18:08:24 -0500
committerChris Ball <cjb@laptop.org>2012-12-06 13:54:46 -0500
commit090d25fe224c0933d2b261aad91532e725c1d889 (patch)
treeac1ad802de5be2f7acc6d7552c04885ee158d80e /include/linux/mmc
parented9dbb6effc3516a1211a936be9bd67c03fdf858 (diff)
downloadop-kernel-dev-090d25fe224c0933d2b261aad91532e725c1d889.zip
op-kernel-dev-090d25fe224c0933d2b261aad91532e725c1d889.tar.gz
mmc: core: Expose access to RPMB partition
Following JEDEC standard, if the mmc supports RPMB partition, a new interface is created and exposed via /dev/block. Users will be able to access RPMB partition using standard mmc IOCTL commands. Signed-off-by: Alex Macro <alex.macro@stericsson.com> Signed-off-by: Loic Pallardy <loic.pallardy@stericsson.com> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Johan Rudholm <johan.rudholm@stericsson.com> Acked-by: Krishna Konda <kkonda@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc')
-rw-r--r--include/linux/mmc/card.h2
-rw-r--r--include/linux/mmc/mmc.h2
2 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 943550df..5c69315 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -85,6 +85,7 @@ struct mmc_ext_csd {
bool boot_ro_lockable;
u8 raw_exception_status; /* 53 */
u8 raw_partition_support; /* 160 */
+ u8 raw_rpmb_size_mult; /* 168 */
u8 raw_erased_mem_count; /* 181 */
u8 raw_ext_csd_structure; /* 194 */
u8 raw_card_type; /* 196 */
@@ -206,6 +207,7 @@ struct mmc_part {
#define MMC_BLK_DATA_AREA_MAIN (1<<0)
#define MMC_BLK_DATA_AREA_BOOT (1<<1)
#define MMC_BLK_DATA_AREA_GP (1<<2)
+#define MMC_BLK_DATA_AREA_RPMB (1<<3)
};
/*
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 01e4b39..94d532e 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -286,6 +286,7 @@ struct _mmc_csd {
#define EXT_CSD_BKOPS_START 164 /* W */
#define EXT_CSD_SANITIZE_START 165 /* W */
#define EXT_CSD_WR_REL_PARAM 166 /* RO */
+#define EXT_CSD_RPMB_MULT 168 /* 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 */
@@ -339,6 +340,7 @@ struct _mmc_csd {
#define EXT_CSD_PART_CONFIG_ACC_MASK (0x7)
#define EXT_CSD_PART_CONFIG_ACC_BOOT0 (0x1)
+#define EXT_CSD_PART_CONFIG_ACC_RPMB (0x3)
#define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4)
#define EXT_CSD_PART_SUPPORT_PART_EN (0x1)
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