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mmc: tmio: Add UHS-I mode support

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Based on work by Shinobu Uehara and Ben Dooks. This adds the voltage
switch operation needed for all UHS-I modes, but not the tuning needed
for SDR-104 which will come later.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Wolfram Sang
2016-04-01 17:44:33 +02:00
committed by Ulf Hansson
parent 2fb55956ce
commit 452e5eef6d
3 changed files with 15 additions and 1 deletions
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2
include/linux/mmc/tmio.h
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@@ -63,6 +63,8 @@
#define TMIO_STAT_CMD_BUSY 0x40000000
#define TMIO_STAT_ILL_ACCESS 0x80000000
#define TMIO_STATUS2_DAT0 BIT(7)
#define CLK_CTL_DIV_MASK 0xff
#define CLK_CTL_SCLKEN BIT(8)