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mmc: tmio-mmc: add support for 32bit data port

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For the r7s72100 SOC, the DATA_PORT register was changed to 32-bits wide.
Therefore a new flag has been created that will allow 32-bit reads/writes
to the DATA_PORT register instead of 16-bit (because 16-bits accesses are
not supported).

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Chris Brandt
2016-09-12 10:15:06 -04:00
committed by Ulf Hansson
parent f19417f382
commit 8185e51f35
3 changed files with 47 additions and 0 deletions
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5
include/linux/mfd/tmio.h
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@@ -99,6 +99,11 @@
*/
#define TMIO_MMC_SDIO_STATUS_QUIRK (1 << 8)
/*
* Some controllers have a 32-bit wide data port register
*/
#define TMIO_MMC_32BIT_DATA_PORT (1 << 9)
/*
* Some controllers allows to set SDx actual clock
*/