The enhanced user area start field is 4 bytes long
according to the eMMC 4.41 spec.
Signed-off-by: Ben Gardiner <bengardiner@xxxxxxxxxxxxxx>
---
mmc.h | 4 ++++
mmc_cmds.c | 8 ++++++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/mmc.h b/mmc.h
index 3577f42..fa46c3a 100644
--- a/mmc.h
+++ b/mmc.h
@@ -44,6 +44,10 @@
#define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
#define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */
#define EXT_CSD_PARTITION_SETTING_COMPLETED 155 /* R/W */
+#define EXT_CSD_ENH_START_ADDR_3 139
+#define EXT_CSD_ENH_START_ADDR_2 138
+#define EXT_CSD_ENH_START_ADDR_1 137
+#define EXT_CSD_ENH_START_ADDR_0 136
#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 */
diff --git a/mmc_cmds.c b/mmc_cmds.c
index a2ccc1d..21d5b4f 100644
--- a/mmc_cmds.c
+++ b/mmc_cmds.c
@@ -756,9 +756,13 @@ int do_read_extcsd(int nargs, char **argv)
printf("Enhanced User Data Area Size"
" [ENH_SIZE_MULT]: 0x%06x\n", (ext_csd[142] << 16) |
(ext_csd[141] << 8) | ext_csd[140]);
+
+ reg = (ext_csd[EXT_CSD_ENH_START_ADDR_3] << 24) |
+ (ext_csd[EXT_CSD_ENH_START_ADDR_2] << 16) |
+ (ext_csd[EXT_CSD_ENH_START_ADDR_1] << 8) |
+ ext_csd[EXT_CSD_ENH_START_ADDR_0];
printf("Enhanced User Data Start Address"
- " [ENH_START_ADDR]: 0x%06x\n", (ext_csd[139] << 16) |
- (ext_csd[138] << 8) | ext_csd[137]);
+ " [ENH_START_ADDR]: 0x%06x\n", reg);
/* A441]: reserved [135] */
printf("Bad Block Management mode"
--
1.7.3.5
--
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