diff options
| author |   Dong Aisheng <b29396@freescale.com> | 2013-10-30 22:09:53 +0800 |
|---|---|---|
| committer |   Chris Ball <chris@printf.net> | 2014-01-13 12:48:05 -0500 |
| commit | 83cc16d767f94edf5821cc89d8300ddb6785810c (patch) | |
| tree | 2cf2cdec1d8ed4e5ffc7c03dce237f56d3538bc7 /drivers/mmc | |
| parent | mmc: sdhci-esdhc-imx: add MMC_CAP_1_8V_DDR for mx6 (diff) | |
| download | linux-dev-83cc16d767f94edf5821cc89d8300ddb6785810c.tar.xz linux-dev-83cc16d767f94edf5821cc89d8300ddb6785810c.zip | |
mmc: core: mmc DDR mode should not depend on UHS_DDR50
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@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | 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 f631f5a9bf79..98e9eb0f6643 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; } |