diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2015-02-06 14:12:58 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-06-01 09:07:14 +0200 |
| commit | cc4f414c885cd04f7227ad9bcd6b18fd78d718d9 (patch) | |
| tree | 257e87e94ababd6109a724b73d8635f5192dfd9e /include/linux/mmc/mmc.h | |
| parent | b097e07f57930eda774c83aa46e8e401686d01dc (diff) | |
mmc: mmc: Add driver strength selection
Add the ability to set eMMC driver strength
for HS200 and HS400.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc/mmc.h')
| -rw-r--r-- | include/linux/mmc/mmc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 4819cfbc3795..15f2c4a0a62c 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -391,6 +391,7 @@ struct _mmc_csd { #define EXT_CSD_TIMING_HS 1 /* High speed */ #define EXT_CSD_TIMING_HS200 2 /* HS200 */ #define EXT_CSD_TIMING_HS400 3 /* HS400 */ +#define EXT_CSD_DRV_STR_SHIFT 4 /* Driver Strength shift */ #define EXT_CSD_SEC_ER_EN BIT(0) #define EXT_CSD_SEC_BD_BLK_EN BIT(2) @@ -442,4 +443,6 @@ struct _mmc_csd { #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits which are 1 in value */ #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */ +#define mmc_driver_type_mask(n) (1 << (n)) + #endif /* LINUX_MMC_MMC_H */ |