Hi Mr.Jeon I known this patch is committed for mmc-next. Maybe you need to send only the patch for power-class. Thanks, Jaehoon Chung On 10/17/2011 08:45 AM, Seungwon Jeon wrote: > This mail is a duplicate from our security machine. > V5 of related patch has already submitted. > Please ignore this resending. > I think that it was unfortunate. > > Seungwon Jeon. > >> EXT_CSD[248] includes the default maximum timeout for CMD6. >> This field is added at eMMC4.5 Spec. And it can be used for default >> timeout except for some operations which don't define the timeout(i.e. >> background operation, sanitize, flush cache) in eMMC4.5 Spec. >> >> Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx> >> --- >> drivers/mmc/core/mmc.c | 18 +++++++++++++----- >> include/linux/mmc/card.h | 1 + >> include/linux/mmc/mmc.h | 1 + >> 3 files changed, 15 insertions(+), 5 deletions(-) >> >> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c >> index c632b1f..c37b8d2 100644 >> --- a/drivers/mmc/core/mmc.c >> +++ b/drivers/mmc/core/mmc.c >> @@ -414,6 +414,12 @@ 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]; >> + else >> + card->ext_csd.generic_cmd6_time = 0; >> + >> out: >> return err; >> } >> @@ -607,7 +613,7 @@ static int mmc_select_powerclass(struct mmc_card *card, >> err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, >> EXT_CSD_POWER_CLASS, >> pwrclass_val, >> - 0); >> + card->ext_csd.generic_cmd6_time); >> } >> >> return err; >> @@ -757,7 +763,8 @@ static int mmc_init_card(struct mmc_host *host, u32 >> ocr, >> */ >> if (card->ext_csd.enhanced_area_en) { >> err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, >> - EXT_CSD_ERASE_GROUP_DEF, 1, 0); >> + EXT_CSD_ERASE_GROUP_DEF, 1, >> + card->ext_csd.generic_cmd6_time); >> >> if (err && err != -EBADMSG) >> goto free_card; >> @@ -800,7 +807,8 @@ static int mmc_init_card(struct mmc_host *host, u32 >> ocr, >> if ((card->ext_csd.hs_max_dtr != 0) && >> (host->caps & MMC_CAP_MMC_HIGHSPEED)) { >> err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, >> - EXT_CSD_HS_TIMING, 1, 0); >> + EXT_CSD_HS_TIMING, 1, >> + card->ext_csd.generic_cmd6_time); >> if (err && err != -EBADMSG) >> goto free_card; >> >> @@ -880,7 +888,7 @@ static int mmc_init_card(struct mmc_host *host, u32 >> ocr, >> err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, >> EXT_CSD_BUS_WIDTH, >> ext_csd_bits[idx][0], >> - 0); >> + card->ext_csd.generic_cmd6_time); >> if (!err) { >> mmc_set_bus_width(card->host, bus_width); >> >> @@ -911,7 +919,7 @@ static int mmc_init_card(struct mmc_host *host, u32 >> ocr, >> err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, >> EXT_CSD_BUS_WIDTH, >> ext_csd_bits[idx][1], >> - 0); >> + card->ext_csd.generic_cmd6_time); >> } >> if (err) { >> printk(KERN_WARNING "%s: switch to bus width %d ddr %d >> " >> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h >> index 5294ddf..d751ceb 100644 >> --- a/include/linux/mmc/card.h >> +++ b/include/linux/mmc/card.h >> @@ -53,6 +53,7 @@ struct mmc_ext_csd { >> u8 rst_n_function; >> 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 50af227..b26c9e4 100644 >> --- a/include/linux/mmc/mmc.h >> +++ b/include/linux/mmc/mmc.h >> @@ -304,6 +304,7 @@ struct _mmc_csd { >> #define EXT_CSD_PWR_CL_DDR_52_195 238 /* RO */ >> #define EXT_CSD_PWR_CL_DDR_52_360 239 /* RO */ >> #define EXT_CSD_POWER_OFF_LONG_TIME 247 /* 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 majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > To unsubscribe from this list: send the line "unsubscribe linux-mmc" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html