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-rw-r--r--drivers/mmc/core/mmc.c3
-rw-r--r--include/linux/mmc/host.h1
2 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index d7d8a93c350..02914d609a9 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -952,7 +952,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
* If enhanced_area_en is TRUE, host needs to enable ERASE_GRP_DEF
* bit. This bit will be lost every time after a reset or power off.
*/
- if (card->ext_csd.enhanced_area_en) {
+ if (card->ext_csd.enhanced_area_en ||
+ (card->ext_csd.rev >= 3 && (host->caps2 & MMC_CAP2_HC_ERASE_SZ))) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_ERASE_GROUP_DEF, 1,
card->ext_csd.generic_cmd6_time);
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index e05bd241c67..33a4d08d810 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -236,6 +236,7 @@ struct mmc_host {
MMC_CAP2_HS200_1_2V_SDR)
#define MMC_CAP2_BROKEN_VOLTAGE (1 << 7) /* Use the broken voltage */
#define MMC_CAP2_DETECT_ON_ERR (1 << 8) /* On I/O err check card removal */
+#define MMC_CAP2_HC_ERASE_SZ (1 << 9) /* High-capacity erase size */
mmc_pm_flag_t pm_caps; /* supported pm features */
unsigned int power_notify_type;