mmc: sdio: Fix SDIO 3.0 UHS-I initialization sequence

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According to UHS-I initialization sequence for SDIO 3.0 cards,
the host must set bit[24] (S18R) of OCR register during OCR
handshake to know whether the SDIO card is capable of doing
1.8V I/O.

Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Johan Rudholm <johan.rudholm@stericsson.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

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This commit is contained in:

Sujit Reddy Thumma 2012-12-04 17:06:19 +05:30 • committed by Chris Ball

parent af321b13cf

commit 56475a1d54

2 changed files with 19 additions and 11 deletions

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22

drivers/mmc/core/sdio.c

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8

include/linux/mmc/host.h

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