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path: root/drivers/mmc/mmc.c
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Diffstat (limited to 'drivers/mmc/mmc.c')
-rw-r--r--drivers/mmc/mmc.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 86c4db9..f07505f 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1031,6 +1031,21 @@ static int mmc_startup(struct mmc *mmc)
has_parts = true;
}
+ mmc->enh_user_size =
+ (ext_csd[EXT_CSD_ENH_SIZE_MULT+2] << 16) +
+ (ext_csd[EXT_CSD_ENH_SIZE_MULT+1] << 8) +
+ ext_csd[EXT_CSD_ENH_SIZE_MULT];
+ mmc->enh_user_size *= ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
+ mmc->enh_user_size *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
+ mmc->enh_user_size <<= 19;
+ mmc->enh_user_start =
+ (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];
+ if (mmc->high_capacity)
+ mmc->enh_user_start <<= 9;
+
/*
* Host needs to enable ERASE_GRP_DEF bit if device is
* partitioned. This bit will be lost every time after a reset