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authorPierre Ossman <drzeus-list@drzeus.cx>2005-09-06 15:18:53 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-07 16:57:50 -0700
commitb57c43ad81602589afca3948a5a7121e40026e17 (patch)
tree39592e326f498231b39e95c299ad6fcd559341ef /include/linux/mmc
parenta00fc09029f02ca833cf90e5d5625f08c4ac4f51 (diff)
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[PATCH] sd: SCR register
Read the SD specific SCR register from the card. 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')
-rw-r--r--include/linux/mmc/card.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 0e9ec01..18fc77f 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -33,6 +33,13 @@ struct mmc_csd {
unsigned int capacity;
};
+struct sd_scr {
+ unsigned char sda_vsn;
+ unsigned char bus_widths;
+#define SD_SCR_BUS_WIDTH_1 (1<<0)
+#define SD_SCR_BUS_WIDTH_4 (1<<2)
+};
+
struct mmc_host;
/*
@@ -51,8 +58,10 @@ struct mmc_card {
#define MMC_STATE_READONLY (1<<4) /* card is read-only */
u32 raw_cid[4]; /* raw card CID */
u32 raw_csd[4]; /* raw card CSD */
+ u32 raw_scr[2]; /* raw card SCR */
struct mmc_cid cid; /* card identification */
struct mmc_csd csd; /* card specific */
+ struct sd_scr scr; /* extra SD information */
};
#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)