diff options
| author | Seungwon Jeon <tgih.jun@samsung.com> | 2011-10-14 09:03:21 +0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-27 00:32:28 +0400 |
| commit | 881d1c25f765938a95def5afe39486ce39f9fc96 (patch) | |
| tree | 694d5ea1b3fba2c28cc110123f2ca50b4408f309 /include/linux/mmc/host.h | |
| parent | 71fe3eb0d006861bdae57e93975b6ae3d9b55e99 (diff) | |
| download | linux-881d1c25f765938a95def5afe39486ce39f9fc96.tar.xz | |
mmc: core: Add cache control for eMMC4.5 device
This patch adds cache feature of eMMC4.5 Spec.
If device supports cache capability, host can utilize some specific
operations.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc/host.h')
| -rw-r--r-- | include/linux/mmc/host.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index cd10208d9a06..16e9338944e8 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -239,6 +239,7 @@ struct mmc_host { unsigned int caps2; /* More host capabilities */ #define MMC_CAP2_BOOTPART_NOACC (1 << 0) /* Boot partition no access */ +#define MMC_CAP2_CACHE_CTRL (1 << 1) /* Allow cache control */ #define MMC_CAP2_POWEROFF_NOTIFY (1 << 2) /* Notify poweroff supported */ mmc_pm_flag_t pm_caps; /* supported pm features */ @@ -349,6 +350,8 @@ extern int mmc_power_restore_host(struct mmc_host *host); extern void mmc_detect_change(struct mmc_host *, unsigned long delay); extern void mmc_request_done(struct mmc_host *, struct mmc_request *); +extern int mmc_cache_ctrl(struct mmc_host *, u8); + static inline void mmc_signal_sdio_irq(struct mmc_host *host) { host->ops->enable_sdio_irq(host, 0); |