diff options
Diffstat (limited to 'include/mci.h')
| -rw-r--r-- | include/mci.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/mci.h b/include/mci.h index a3f6d619b3..3e93f378e4 100644 --- a/include/mci.h +++ b/include/mci.h @@ -51,6 +51,11 @@ #define MMC_CAP_SD_HIGHSPEED (1 << 3) #define MMC_CAP_MMC_HIGHSPEED (1 << 4) #define MMC_CAP_MMC_HIGHSPEED_52MHZ (1 << 5) +#define MMC_CAP_MMC_3_3V_DDR (1 << 7) /* Host supports eMMC DDR 3.3V */ +#define MMC_CAP_MMC_1_8V_DDR (1 << 8) /* Host supports eMMC DDR 1.8V */ +#define MMC_CAP_MMC_1_2V_DDR (1 << 9) /* Host supports eMMC DDR 1.2V */ +#define MMC_CAP_DDR (MMC_CAP_3_3V_DDR | MMC_CAP_1_8V_DDR | \ + MMC_CAP_1_2V_DDR) /* Mask of all caps for bus width */ #define MMC_CAP_BIT_DATA_MASK (MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA) @@ -308,6 +313,7 @@ #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ #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 R1_ILLEGAL_COMMAND (1 << 22) #define R1_STATUS(x) (x & 0xFFF9A000) @@ -410,6 +416,19 @@ enum mci_timing { MMC_TIMING_MMC_HS400 = 8, }; +static inline bool mci_timing_is_ddr(enum mci_timing timing) +{ + switch (timing) { + case MMC_TIMING_UHS_DDR50: + case MMC_TIMING_MMC_HS200: + case MMC_TIMING_MMC_DDR52: + case MMC_TIMING_MMC_HS400: + return true; + default: + return false; + } +} + enum mci_bus_width { MMC_BUS_WIDTH_1 = 0, MMC_BUS_WIDTH_4 = 2, |