mmc-utils: Add blockprotect command set
This patch adds a group of commands that allow controlling an eMMC's
user partition write-protect features, which allow temporary, permanent
or until-next-power-on write-protection of a write-protect block (which
is a device-dependent multiple of an erase block).
BUG=None
TEST=Manual enabling, disabling and writing of a bunch of blocks on my
Minnie.
Change-Id: I75ff069f7f9cf94cdb3adfa0a5f4574f912cad9f
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/340252
Reviewed-by: Gwendal Grignou <gwendal@google.com>
diff --git a/mmc.h b/mmc.h
index f89cf28..95e7c96 100644
--- a/mmc.h
+++ b/mmc.h
@@ -31,6 +31,9 @@
#define MMC_SWITCH 6 /* ac [31:0] See below R1b */
#define MMC_SEND_EXT_CSD 8 /* adtc R1 */
#define MMC_SEND_STATUS 13 /* ac [31:16] RCA R1 */
+#define MMC_SET_WRITE_PROT 28 /* ac [31:0] block number R1b */
+#define MMC_CLR_WRITE_PROT 29 /* ac [31:0] block number R1b */
+#define MMC_SEND_WRITE_PROT_TYPE 31 /* adtc [31:0] block number R1 */
#define R1_SWITCH_ERROR (1 << 7) /* sx, c */
#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */
#define MMC_READ_MULTIPLE_BLOCK 18 /* adtc [31:0] data addr R1 */
@@ -58,6 +61,7 @@
#define EXT_CSD_BOOT_BUS_CONDITIONS 177
#define EXT_CSD_ERASE_GROUP_DEF 175
#define EXT_CSD_BOOT_WP 173
+#define EXT_CSD_USER_WP 171
#define EXT_CSD_WR_REL_SET 167
#define EXT_CSD_WR_REL_PARAM 166
#define EXT_CSD_SANITIZE_START 165
@@ -92,6 +96,7 @@
#define EXT_CSD_NATIVE_SECTOR_SIZE 63 /* R */
#define EXT_CSD_USE_NATIVE_SECTOR 62 /* R/W */
#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */
+#define EXT_CSD_CLASS_6_CTRL 59
#define EXT_CSD_EXT_PARTITIONS_ATTRIBUTE_1 53
#define EXT_CSD_EXT_PARTITIONS_ATTRIBUTE_0 52
#define EXT_CSD_CACHE_CTRL 33
@@ -140,6 +145,10 @@
#define EXT_CSD_ENH_2 (1<<2)
#define EXT_CSD_ENH_1 (1<<1)
#define EXT_CSD_ENH_USR (1<<0)
+#define EXT_CSD_US_PERM_WP_DIS (1<<4)
+#define EXT_CSD_US_PWR_WP_DIS (1<<3)
+#define EXT_CSD_US_PERM_WP_EN (1<<2)
+#define EXT_CSD_US_PWR_WP_EN (1<<0)
#define EXT_CSD_REV_V5_1 8
#define EXT_CSD_REV_V5_0 7
#define EXT_CSD_REV_V4_5 6