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[6/7] mmc: core: mmc DDR mode should not depend on UHS_DDR50

Message ID 1382365627-26816-7-git-send-email-b29396@freescale.com (mailing list archive)
State New, archived
Headers show

Commit Message

Aisheng Dong Oct. 21, 2013, 2:27 p.m. UTC 
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>
---
 drivers/mmc/core/mmc.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 6d02012..215ba38 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1117,14 +1117,10 @@  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;
 	}