The MMC_CAP_UHS_DDR50 must work on 1.8v.
However, the eMMC DDR mode can work on either 1.8v or 3.3v and
should not depend on UHS_DDR50.
So get rid of this limitation to let controller without 1.8v
signal voltage support can also work for eMMC DDR mode if it claims.
Signed-off-by: Dong Aisheng <b29396@xxxxxxxxxxxxx>
---
drivers/mmc/core/mmc.c | 8 ++------
1 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index f631f5a..98e9eb0 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1119,14 +1119,10 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
*/
if (mmc_card_highspeed(card)) {
if ((card->ext_csd.card_type & EXT_CSD_CARD_TYPE_DDR_1_8V)
- && ((host->caps & (MMC_CAP_1_8V_DDR |
- MMC_CAP_UHS_DDR50))
- == (MMC_CAP_1_8V_DDR | MMC_CAP_UHS_DDR50)))
+ && (host->caps & MMC_CAP_1_8V_DDR))
ddr = MMC_1_8V_DDR_MODE;
else if ((card->ext_csd.card_type & EXT_CSD_CARD_TYPE_DDR_1_2V)
- && ((host->caps & (MMC_CAP_1_2V_DDR |
- MMC_CAP_UHS_DDR50))
- == (MMC_CAP_1_2V_DDR | MMC_CAP_UHS_DDR50)))
+ && (host->caps & MMC_CAP_1_2V_DDR))
ddr = MMC_1_2V_DDR_MODE;
}
--
1.7.2.rc3
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