diff options
| author | Pierre Ossman <drzeus-list@drzeus.cx> | 2005-09-07 02:18:55 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-08 03:57:51 +0400 |
| commit | f218278a456b3c272b480443c89004c3d2a49f18 (patch) | |
| tree | 8d9558816488311e06a7ad2434e342418f2c79d5 /include/linux/mmc/protocol.h | |
| parent | a9c4342beb4cd28b3a05c3401195e2536c37c150 (diff) | |
| download | linux-f218278a456b3c272b480443c89004c3d2a49f18.tar.xz | |
[PATCH] sd: SD 4-bit bus
Infrastructure for 4-bit bus transfers with SD cards.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/mmc/protocol.h')
| -rw-r--r-- | include/linux/mmc/protocol.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mmc/protocol.h b/include/linux/mmc/protocol.h index 896342817b97..f819cae92266 100644 --- a/include/linux/mmc/protocol.h +++ b/include/linux/mmc/protocol.h @@ -236,5 +236,12 @@ struct _mmc_csd { #define CSD_SPEC_VER_2 2 /* Implements system specification 2.0 - 2.2 */ #define CSD_SPEC_VER_3 3 /* Implements system specification 3.1 */ + +/* + * SD bus widths + */ +#define SD_BUS_WIDTH_1 0 +#define SD_BUS_WIDTH_4 2 + #endif /* MMC_MMC_PROTOCOL_H */ |