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authorPierre Ossman <drzeus-list@drzeus.cx>2005-09-06 18:18:55 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-07 19:57:51 -0400
commitf218278a456b3c272b480443c89004c3d2a49f18 (patch)
tree8d9558816488311e06a7ad2434e342418f2c79d5 /include/linux/mmc/protocol.h
parenta9c4342beb4cd28b3a05c3401195e2536c37c150 (diff)
[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.h7
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 {
236#define CSD_SPEC_VER_2 2 /* Implements system specification 2.0 - 2.2 */ 236#define CSD_SPEC_VER_2 2 /* Implements system specification 2.0 - 2.2 */
237#define CSD_SPEC_VER_3 3 /* Implements system specification 3.1 */ 237#define CSD_SPEC_VER_3 3 /* Implements system specification 3.1 */
238 238
239
240/*
241 * SD bus widths
242 */
243#define SD_BUS_WIDTH_1 0
244#define SD_BUS_WIDTH_4 2
245
239#endif /* MMC_MMC_PROTOCOL_H */ 246#endif /* MMC_MMC_PROTOCOL_H */
240 247