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Chaotian Jing 9979dbe515 mmc: mmc: extend the mmc_send_tuning()

The mmc_execute_tuning() has already prepared the opcode,
there is no need to prepare it again at mmc_send_tuning(),
and, there is a BUG of mmc_send_tuning() to determine the opcode
by bus width, assume eMMC was running at HS200, 4bit mode,
then the mmc_send_tuning() will overwrite the opcode from CMD21
to CMD19, then got error.

in addition, extend an argument of "cmd_error" to allow getting
if there was cmd error when tune response.

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
[Ulf: Rebased patch]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

2015-10-27 10:38:41 +01:00

boot.h

mmc: Standardize header file inclusion checks.

2011-07-20 17:20:48 -04:00

card.h

mmc: core: Remove MMC_CLKGATE

2015-10-26 16:00:09 +01:00

core.h

mmc: mmc: extend the mmc_send_tuning()

2015-10-27 10:38:41 +01:00

dw_mmc.h

mmc: dw_mmc: Add external dma interface support