diff options
| author | Ye Li <ye.li@nxp.com> | 2018-04-19 02:18:17 -0700 |
|---|---|---|
| committer | Ye Li <ye.li@nxp.com> | 2018-04-27 06:14:45 -0700 |
| commit | 0972a7219faefcae27e7c39a9c84f46145148913 (patch) | |
| tree | b60ed6e104d8f5e61d0619bd41ec15a9753f8620 /include | |
| parent | d39cfdeb0e156e135533bc12df275cfd3c4de0b2 (diff) | |
MLK-18161-15 mmc: Add HS400 Enhanced Strobe mode support
The eMMC 5.1 supports the HS400 Enhanced Strobe mode, add this
support to mmc.
Signed-off-by: Ye Li <ye.li@nxp.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/mmc.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h index 8c01c6a530e..b39ebdcb0f6 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -66,6 +66,7 @@ #define MMC_MODE_DDR_52MHz MMC_CAP(MMC_DDR_52) #define MMC_MODE_HS200 MMC_CAP(MMC_HS_200) #define MMC_MODE_HS400 MMC_CAP(MMC_HS_400) +#define MMC_MODE_HS400_ES MMC_CAP(MMC_HS_400_ES) #define MMC_MODE_8BIT BIT(30) #define MMC_MODE_4BIT BIT(29) @@ -220,6 +221,7 @@ static inline bool mmc_is_tuning_cmd(uint cmdidx) #define EXT_CSD_BOOT_BUS_WIDTH 177 #define EXT_CSD_PART_CONF 179 /* R/W */ #define EXT_CSD_BUS_WIDTH 183 /* R/W */ +#define EXT_CSD_STROBE_SUPPORT 184 /* R/W */ #define EXT_CSD_HS_TIMING 185 /* R/W */ #define EXT_CSD_REV 192 /* RO */ #define EXT_CSD_CARD_TYPE 196 /* RO */ @@ -262,11 +264,13 @@ static inline bool mmc_is_tuning_cmd(uint cmdidx) #define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */ #define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */ #define EXT_CSD_DDR_FLAG BIT(2) /* Flag for DDR mode */ +#define EXT_CSD_BUS_WIDTH_STROBE (1 << 7) /* Enhanced strobe mode */ #define EXT_CSD_TIMING_LEGACY 0 /* no high speed */ #define EXT_CSD_TIMING_HS 1 /* HS */ #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_BOOT_ACK_ENABLE (1 << 6) #define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3) @@ -463,6 +467,11 @@ struct dm_mmc_ops { */ int (*wait_dat0)(struct udevice *dev, int state, int timeout); #endif + +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + /* set_enhanced_strobe() - set HS400 enhanced strobe */ + void (*set_enhanced_strobe)(struct udevice *dev); +#endif }; #define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops) @@ -483,6 +492,7 @@ int mmc_getcd(struct mmc *mmc); int mmc_getwp(struct mmc *mmc); int mmc_execute_tuning(struct mmc *mmc, uint opcode); int mmc_wait_dat0(struct mmc *mmc, int state, int timeout); +void mmc_set_enhanced_strobe(struct mmc *mmc); #else struct mmc_ops { @@ -528,6 +538,7 @@ enum bus_mode { UHS_SDR104, MMC_HS_200, MMC_HS_400, + MMC_HS_400_ES, MMC_MODES_END }; @@ -546,6 +557,10 @@ static inline bool mmc_is_mode_ddr(enum bus_mode mode) else if (mode == MMC_HS_400) return true; #endif +#if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT) + else if (mode == MMC_HS_400_ES) + return true; +#endif else return false; } |