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mmc: MMC sector based cards

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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>
This commit is contained in:
Pierre Ossman 2007-02-17 22:15:27 +01:00
parent de85989511
commit 85a18ad93e
4 changed files with 38 additions and 8 deletions
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1
include/linux/mmc/card.h
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@ -41,6 +41,7 @@ struct mmc_csd {
struct mmc_ext_csd {
unsigned int hs_max_dtr;
unsigned int sectors;
};
struct sd_scr {

1
include/linux/mmc/protocol.h
View file

@ -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