mmc: recognize CSD structure
The eMMC spec 4.4 and 4.3 + additional feature chips has CSD structure
version 3 and version 3 have to check the CSD_STRUCTURE byte in the
EXT_CSD register.
Also fix EXT_CSD revision message.
[akpm@linux-foundation.org: fix comment, per Chris Ball]
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index d02d2c6..c83c7a7 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -24,6 +24,7 @@
};
struct mmc_csd {
+ unsigned char structure;
unsigned char mmca_vsn;
unsigned short cmdclass;
unsigned short tacc_clks;
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 8a49cbf..52ce988 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -254,6 +254,7 @@
#define EXT_CSD_BUS_WIDTH 183 /* R/W */
#define EXT_CSD_HS_TIMING 185 /* R/W */
#define EXT_CSD_CARD_TYPE 196 /* RO */
+#define EXT_CSD_STRUCTURE 194 /* RO */
#define EXT_CSD_REV 192 /* RO */
#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
#define EXT_CSD_S_A_TIMEOUT 217