diff options
| author | Pierre Ossman <drzeus@drzeus.cx> | 2005-09-03 16:45:02 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-09-03 16:45:02 +0100 |
| commit | 865e9f13c94891daed4f6a5f69c5d6ec04d4932f (patch) | |
| tree | ea969a896c3b5be5dca761605275e0895efc3976 /include/linux/mmc/host.h | |
| parent | f505380ba7b98ec97bf25300c2a58aeae903530b (diff) | |
[MMC] ios for mmc chip select
Adds a new ios for setting the chip select pin on MMC cards. Needed on
SD controllers which use this pin for other things and therefore cannot
have it pulled high at all times.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/linux/mmc/host.h')
| -rw-r--r-- | include/linux/mmc/host.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 9a0893f3249..30f68c0c8c6 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -46,6 +46,12 @@ struct mmc_ios { #define MMC_BUSMODE_OPENDRAIN 1 #define MMC_BUSMODE_PUSHPULL 2 + unsigned char chip_select; /* SPI chip select */ + +#define MMC_CS_DONTCARE 0 +#define MMC_CS_HIGH 1 +#define MMC_CS_LOW 2 + unsigned char power_mode; /* power supply mode */ #define MMC_POWER_OFF 0 |