diff options
| -rw-r--r-- | drivers/mmc/core/core.c | 9 | ||||
| -rw-r--r-- | drivers/mmc/core/core.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 874c6fe92855..88fd231fee1d 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1875,6 +1875,15 @@ bool mmc_card_can_secure_erase_trim(struct mmc_card *card) } EXPORT_SYMBOL(mmc_card_can_secure_erase_trim); +bool mmc_card_can_cmd23(struct mmc_card *card) +{ + return ((mmc_card_mmc(card) && + card->csd.mmca_vsn >= CSD_SPEC_VER_3) || + (mmc_card_sd(card) && !mmc_card_ult_capacity(card) && + card->scr.cmds & SD_SCR_CMD23_SUPPORT)); +} +EXPORT_SYMBOL(mmc_card_can_cmd23); + int mmc_erase_group_aligned(struct mmc_card *card, sector_t from, unsigned int nr) { diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h index 622085cd766f..73f5d3d8c77d 100644 --- a/drivers/mmc/core/core.h +++ b/drivers/mmc/core/core.h @@ -123,6 +123,7 @@ bool mmc_card_can_trim(struct mmc_card *card); bool mmc_card_can_discard(struct mmc_card *card); bool mmc_card_can_sanitize(struct mmc_card *card); bool mmc_card_can_secure_erase_trim(struct mmc_card *card); +bool mmc_card_can_cmd23(struct mmc_card *card); int mmc_erase_group_aligned(struct mmc_card *card, sector_t from, unsigned int nr); unsigned int mmc_calc_max_discard(struct mmc_card *card); |