diff options
| author | Maya Erez <merez@codeaurora.org> | 2015-09-29 17:34:03 +0300 |
|---|---|---|
| committer | Subhash Jadavani <subhashj@codeaurora.org> | 2016-05-31 15:27:31 -0700 |
| commit | 21a32a7af8ca151dff4f3710742864705a5a7e7d (patch) | |
| tree | 6b12a6b38dcac1a661e57a54f4604e23450731bc /include/linux | |
| parent | 17a072dd256d9a3246abf28e78e62a65c63f84f1 (diff) | |
mmc: core: add partial initialization support
This change adds the ability to partially initialize
the MMC card by using card Sleep/Awake sequence (CMD5).
Card will be sent to Sleep state during runtime/system suspend
and will be woken up during runtime/system resume.
By using this sequence the card doesn't need full initialization
which gives time reduction in system/runtime resume path.
Change-Id: Id8dadf03ef4226f7c4675fadbacac7bb15c0289e
Signed-off-by: Talel Shenhar <tatias@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
[subhashj@codeaurora.org: fixed merge conflicts & compilation errors]
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mmc/card.h | 4 | ||||
| -rw-r--r-- | include/linux/mmc/host.h | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 1b891365653f..b8430181704a 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -93,6 +93,8 @@ struct mmc_ext_csd { unsigned int data_tag_unit_size; /* DATA TAG UNIT size */ unsigned int boot_ro_lock; /* ro lock support */ bool boot_ro_lockable; + u8 raw_ext_csd_cmdq; /* 15 */ + u8 raw_ext_csd_cache_ctrl; /* 33 */ bool ffu_capable; /* Firmware upgrade support */ #define MMC_FIRMWARE_LEN 8 u8 fwrev[MMC_FIRMWARE_LEN]; /* FW version */ @@ -100,8 +102,10 @@ struct mmc_ext_csd { u8 raw_partition_support; /* 160 */ u8 raw_rpmb_size_mult; /* 168 */ u8 raw_erased_mem_count; /* 181 */ + u8 raw_ext_csd_bus_width; /* 183 */ u8 strobe_support; /* 184 */ #define MMC_STROBE_SUPPORT (1 << 0) + u8 raw_ext_csd_hs_timing; /* 185 */ u8 raw_ext_csd_structure; /* 194 */ u8 raw_card_type; /* 196 */ u8 raw_driver_strength; /* 197 */ diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 367e122d1f2f..0f8d285a1192 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -441,6 +441,8 @@ struct mmc_host { #define MMC_CAP2_NONHOTPLUG (1 << 25) /*Don't support hotplug*/ #define MMC_CAP2_CMD_QUEUE (1 << 26) /* support eMMC command queue */ #define MMC_CAP2_SANITIZE (1 << 27) /* Support Sanitize */ +#define MMC_CAP2_SLEEP_AWAKE (1 << 28) /* Use Sleep/Awake (CMD5) */ + mmc_pm_flag_t pm_caps; /* supported pm features */ #ifdef CONFIG_MMC_CLKGATE @@ -468,6 +470,7 @@ struct mmc_host { spinlock_t lock; /* lock for claim and bus ops */ struct mmc_ios ios; /* current io bus settings */ + struct mmc_ios cached_ios; /* group bitfields together to minimize padding */ unsigned int use_spi_crc:1; |