[PATCH] mmc: wbsd Secure Digital support

Add support for Secure Digital specific features in the wbsd driver.  Adds
support for read-only switch and wide bus transfers.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/mmc/wbsd.h b/drivers/mmc/wbsd.h
index 8af43549f5d5..9005b5241b3c 100644
--- a/drivers/mmc/wbsd.h
+++ b/drivers/mmc/wbsd.h
@@ -106,6 +106,8 @@
 #define WBSD_CLK_16M            0x02
 #define WBSD_CLK_24M            0x03
 
+#define WBSD_DATA_WIDTH         0x01
+
 #define WBSD_DAT3_H             0x08
 #define WBSD_FIFO_RESET         0x04
 #define WBSD_SOFT_RESET         0x02
@@ -164,6 +166,7 @@ struct wbsd_host
         int                     firsterr;       /* See fifo functions */
         
         u8                      clk;            /* Current clock speed */
+        unsigned char           bus_width;      /* Current bus width */
         
         int                     config;         /* Config port */
         u8                      unlock_code;    /* Code to unlock config */