mmc: dw_mmc: enable mmc-erase capability

To use erase feature(DISCARD or SANITIZE or ERASE, etc..), set MMC_CAP_ERASE.
(In future, this feature should be enabled by default. But before enable
 by default, it needs to fix the some erase issue - discussing at
 Mailing-list.)

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 0a56d76..4736cd6 100644 (file)
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -490,7 +490,8 @@ int dw_mci_exynos_prepare_hs400_tuning(struct dw_mci *host,
 
 /* Common capabilities of Exynos4/Exynos5 SoC */
 static unsigned long exynos_dwmmc_caps[4] = {
-       MMC_CAP_1_8V_DDR | MMC_CAP_8_BIT_DATA | MMC_CAP_CMD23,
+       MMC_CAP_1_8V_DDR | MMC_CAP_8_BIT_DATA | MMC_CAP_CMD23 |
+               MMC_CAP_ERASE,
        MMC_CAP_CMD23,
        MMC_CAP_CMD23,
        MMC_CAP_CMD23,