mmc: MMC sector based cards

Support for MMC 4.2 sector based cards. This tweaks the init a
bit and reads a new field out of the EXT_CSD.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

2 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index e45712acfac..5d9896c260a 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -41,6 +41,7 @@ struct mmc_csd {
 
 struct mmc_ext_csd {
         unsigned int            hs_max_dtr;
+        unsigned int            sectors;
 };
 
 struct sd_scr {
diff --git a/include/linux/mmc/protocol.h b/include/linux/mmc/protocol.h
index c90b6768329..d740ab94fa2 100644
--- a/include/linux/mmc/protocol.h
+++ b/include/linux/mmc/protocol.h
@@ -284,6 +284,7 @@ struct _mmc_csd {
 #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_SEC_CNT         212     /* RO, 4 bytes */
 
 /*
  * EXT_CSD field definitions