EXT_CSD[248] includes the default maximum timeout for CMD6. This field is added at eMMC4.5 Spec.
Signed-off-by: Seungwon Jeon <[email protected]> --- drivers/mmc/core/mmc.c | 4 ++++ include/linux/mmc/card.h | 1 + include/linux/mmc/mmc.h | 1 + 3 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 5700b1c..68eb368 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -410,6 +410,10 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) else card->erased_byte = 0x0; + if (card->ext_csd.rev >= 6) + card->ext_csd.generic_cmd6_time = 10 * + ext_csd[EXT_CSD_GENERIC_CMD6_TIME]; + out: return err; } diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index b460fc2..e992fe3 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -52,6 +52,7 @@ struct mmc_ext_csd { u8 part_config; unsigned int part_time; /* Units: ms */ unsigned int sa_timeout; /* Units: 100ns */ + unsigned int generic_cmd6_time; /* Units: ms */ unsigned int hs_max_dtr; unsigned int sectors; unsigned int card_type; diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 5a794cb..e869f00 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -293,6 +293,7 @@ struct _mmc_csd { #define EXT_CSD_SEC_ERASE_MULT 230 /* RO */ #define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */ #define EXT_CSD_TRIM_MULT 232 /* RO */ +#define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */ /* * EXT_CSD field definitions -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
