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mmc: MMC 4.4 DDR support

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Add support for Dual Data Rate MMC cards as defined in the 4.4
specification.

Signed-off-by: Hanumath Prasad <hanumath.prasad@stericsson.com>
Cc: linux-mmc@vger.kernel.org
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Tested-by Zhangfei Gao <zhangfei.gao@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Hanumath Prasad
2010-09-30 17:37:23 -04:00
committed by Chris Ball
parent 99fc513101
commit dfc13e8402
6 changed files with 60 additions and 6 deletions
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include/linux/mmc/core.h
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@@ -109,6 +109,7 @@ struct mmc_data {
#define MMC_DATA_WRITE (1 << 8)
#define MMC_DATA_READ (1 << 9)
#define MMC_DATA_STREAM (1 << 10)
#define MMC_DDR_MODE (1 << 11)
unsigned int bytes_xfered;