The erase_grp_size in struct mmc is to be a size in 512-byte sectors
but the code used to compute it for eMMC when EXT_CSD_ERASE_GROUP_DEF is
enabled computed it as bytes, leading to erase sizes and alignment
much larger than what is actually required by the mmc device.
---
drivers/mmc/mmc.c | 3 +--
include/mmc.h | 2 +-
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index b0b4c8e..cfba0aa 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1064,8 +1064,7 @@ static int mmc_startup(struct mmc *mmc)
/* Read out group size from ext_csd */
mmc->erase_grp_size =
- ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] *
- MMC_MAX_BLOCK_LEN * 1024;
+ ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024;
} else {
/* Calculate the group size from the csd value. */
int erase_gsz, erase_gmul;
diff --git a/include/mmc.h b/include/mmc.h
index 8500949..fcfe9c9 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -313,7 +313,7 @@ struct mmc {
uint tran_speed;
uint read_bl_len;
uint write_bl_len;
- uint erase_grp_size;
+ uint erase_grp_size; /* in 512-byte sectors */
u64 capacity;
u64 capacity_user;
u64 capacity_boot;
--
1.7.1
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