Loading drivers/mmc/mmc_block.c +4 −1 Original line number Diff line number Diff line Loading @@ -383,7 +383,10 @@ static int mmc_blk_probe(struct mmc_card *card) struct mmc_blk_data *md; int err; if (card->csd.cmdclass & ~0x1ff) /* * Check that the card supports the command class(es) we need. */ if (!(card->csd.cmdclass & CCC_BLOCK_READ)) return -ENODEV; if (card->csd.read_blkbits < 9) { Loading include/linux/mmc/protocol.h +27 −0 Original line number Diff line number Diff line Loading @@ -195,6 +195,33 @@ struct _mmc_csd { #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ #define MMC_CARD_BUSY 0x80000000 /* Card Power up status bit */ /* * Card Command Classes (CCC) */ #define CCC_BASIC (1<<0) /* (0) Basic protocol functions */ /* (CMD0,1,2,3,4,7,9,10,12,13,15) */ #define CCC_STREAM_READ (1<<1) /* (1) Stream read commands */ /* (CMD11) */ #define CCC_BLOCK_READ (1<<2) /* (2) Block read commands */ /* (CMD16,17,18) */ #define CCC_STREAM_WRITE (1<<3) /* (3) Stream write commands */ /* (CMD20) */ #define CCC_BLOCK_WRITE (1<<4) /* (4) Block write commands */ /* (CMD16,24,25,26,27) */ #define CCC_ERASE (1<<5) /* (5) Ability to erase blocks */ /* (CMD32,33,34,35,36,37,38,39) */ #define CCC_WRITE_PROT (1<<6) /* (6) Able to write protect blocks */ /* (CMD28,29,30) */ #define CCC_LOCK_CARD (1<<7) /* (7) Able to lock down card */ /* (CMD16,CMD42) */ #define CCC_APP_SPEC (1<<8) /* (8) Application specific */ /* (CMD55,56,57,ACMD*) */ #define CCC_IO_MODE (1<<9) /* (9) I/O mode */ /* (CMD5,39,40,52,53) */ #define CCC_SWITCH (1<<10) /* (10) High speed switch */ /* (CMD6,34,35,36,37,50) */ /* (11) Reserved */ /* (CMD?) */ /* * CSD field definitions Loading Loading
drivers/mmc/mmc_block.c +4 −1 Original line number Diff line number Diff line Loading @@ -383,7 +383,10 @@ static int mmc_blk_probe(struct mmc_card *card) struct mmc_blk_data *md; int err; if (card->csd.cmdclass & ~0x1ff) /* * Check that the card supports the command class(es) we need. */ if (!(card->csd.cmdclass & CCC_BLOCK_READ)) return -ENODEV; if (card->csd.read_blkbits < 9) { Loading
include/linux/mmc/protocol.h +27 −0 Original line number Diff line number Diff line Loading @@ -195,6 +195,33 @@ struct _mmc_csd { #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ #define MMC_CARD_BUSY 0x80000000 /* Card Power up status bit */ /* * Card Command Classes (CCC) */ #define CCC_BASIC (1<<0) /* (0) Basic protocol functions */ /* (CMD0,1,2,3,4,7,9,10,12,13,15) */ #define CCC_STREAM_READ (1<<1) /* (1) Stream read commands */ /* (CMD11) */ #define CCC_BLOCK_READ (1<<2) /* (2) Block read commands */ /* (CMD16,17,18) */ #define CCC_STREAM_WRITE (1<<3) /* (3) Stream write commands */ /* (CMD20) */ #define CCC_BLOCK_WRITE (1<<4) /* (4) Block write commands */ /* (CMD16,24,25,26,27) */ #define CCC_ERASE (1<<5) /* (5) Ability to erase blocks */ /* (CMD32,33,34,35,36,37,38,39) */ #define CCC_WRITE_PROT (1<<6) /* (6) Able to write protect blocks */ /* (CMD28,29,30) */ #define CCC_LOCK_CARD (1<<7) /* (7) Able to lock down card */ /* (CMD16,CMD42) */ #define CCC_APP_SPEC (1<<8) /* (8) Application specific */ /* (CMD55,56,57,ACMD*) */ #define CCC_IO_MODE (1<<9) /* (9) I/O mode */ /* (CMD5,39,40,52,53) */ #define CCC_SWITCH (1<<10) /* (10) High speed switch */ /* (CMD6,34,35,36,37,50) */ /* (11) Reserved */ /* (CMD?) */ /* * CSD field definitions Loading