diff options
| author | Uri Yanai <uri.yanai@sandisk.com> | 2017-02-07 19:00:01 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-02-14 11:11:00 +0300 |
| commit | efff8e7879b8b7f8a077f495262f0bb9cfaa0b06 (patch) | |
| tree | 821f95ebc8d06025b37b0ee69d7fd903be322476 | |
| parent | 6962c2fb201878722ef78b513dae7c22dfa4919c (diff) | |
| download | linux-efff8e7879b8b7f8a077f495262f0bb9cfaa0b06.tar.xz | |
mmc: Adding AUTO_BKOPS_EN bit set for Auto BKOPS support
Adding dedicated flag for AUTO_BKOPS in card->ext_csd structure.
Read AUTO_BKOPS bit value from the device EXT_CSD and set to the
card->ext_csd structure.
In mmc_decode_ext_csd() add a print message in case the AUTO_BKOPS
is enabled
Signed-off-by: Uri Yanai <uri.yanai@sandisk.com>
Signed-off-by: Alex Lemberg <alex.lemberg@sandisk.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/core/mmc.c | 6 | ||||
| -rw-r--r-- | include/linux/mmc/card.h | 1 | ||||
| -rw-r--r-- | include/linux/mmc/mmc.h | 1 |
3 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 1b67e3085353..e01e70c24ca2 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -546,6 +546,12 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) if (card->ext_csd.man_bkops_en) pr_debug("%s: MAN_BKOPS_EN bit is set\n", mmc_hostname(card->host)); + card->ext_csd.auto_bkops_en = + (ext_csd[EXT_CSD_BKOPS_EN] & + EXT_CSD_AUTO_BKOPS_MASK); + if (card->ext_csd.auto_bkops_en) + pr_debug("%s: AUTO_BKOPS_EN bit is set\n", + mmc_hostname(card->host)); } /* check whether the eMMC card supports HPI */ diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 29d00c91c25c..77e61e0a216a 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -83,6 +83,7 @@ struct mmc_ext_csd { unsigned int hpi_cmd; /* cmd used as HPI */ bool bkops; /* background support bit */ bool man_bkops_en; /* manual bkops enable bit */ + bool auto_bkops_en; /* auto bkops enable bit */ unsigned int data_sector_size; /* 512 bytes or 4KB */ unsigned int data_tag_unit_size; /* DATA TAG UNIT size */ unsigned int boot_ro_lock; /* ro lock support */ diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 7406d9badda0..3ffc27aaeeaf 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -407,6 +407,7 @@ static inline bool mmc_op_multi(u32 opcode) * BKOPS modes */ #define EXT_CSD_MANUAL_BKOPS_MASK 0x01 +#define EXT_CSD_AUTO_BKOPS_MASK 0x02 /* * Command Queue |