diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/mci.h | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/include/mci.h b/include/mci.h index 7a4521adde..52bf84ecdb 100644 --- a/include/mci.h +++ b/include/mci.h @@ -82,6 +82,8 @@ #define MMC_CMD_SET_BLOCKLEN 16 #define MMC_CMD_READ_SINGLE_BLOCK 17 #define MMC_CMD_READ_MULTIPLE_BLOCK 18 +#define MMC_SEND_TUNING_BLOCK 19 /* adtc R1 */ +#define MMC_SEND_TUNING_BLOCK_HS200 21 /* adtc R1 */ #define MMC_CMD_WRITE_SINGLE_BLOCK 24 #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25 #define MMC_CMD_APP_CMD 55 @@ -293,8 +295,8 @@ #define EXT_CSD_CARD_TYPE_MASK 0x3f #define EXT_CSD_CARD_TYPE_26 (1<<0) /* Card can run at 26MHz */ #define EXT_CSD_CARD_TYPE_52 (1<<1) /* Card can run at 52MHz */ -#define EXT_CSD_CARD_TYPE_HS (EXT_CSD_CARD_TYPE_HS_26 | \ - EXT_CSD_CARD_TYPE_HS_52) +#define EXT_CSD_CARD_TYPE_HS (EXT_CSD_CARD_TYPE_26 | \ + EXT_CSD_CARD_TYPE_52) #define EXT_CSD_CARD_TYPE_DDR_1_8V (1<<2) /* Card can run at 52MHz */ /* DDR mode @1.8V or 3V I/O */ #define EXT_CSD_CARD_TYPE_DDR_1_2V (1<<3) /* Card can run at 52MHz */ @@ -330,6 +332,12 @@ #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_TIMING_BC 0 /* Backwards compatility */ +#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 R1_ILLEGAL_COMMAND (1 << 22) #define R1_STATUS(x) (x & 0xFFF9A000) #define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */ @@ -504,6 +512,8 @@ struct mci_host { unsigned actual_clock; enum mci_bus_width bus_width; /**< used data bus width to the card */ enum mci_timing timing; /**< used timing specification to the card */ + unsigned hs_max_dtr; + unsigned hs200_max_dtr; unsigned max_req_size; unsigned dsr_val; /**< optional dsr value */ int use_dsr; /**< optional dsr usage flag */ @@ -522,6 +532,8 @@ struct mci_host { int (*card_present)(struct mci_host *); /** check if a card is write protected */ int (*card_write_protected)(struct mci_host *); + /* The tuning command opcode value is different for SD and eMMC cards */ + int (*execute_tuning)(struct mci_host *, u32); }; #define MMC_NUM_BOOT_PARTITION 2 @@ -587,6 +599,7 @@ void mci_of_parse_node(struct mci_host *host, struct device_node *np); int mci_detect_card(struct mci_host *); int mci_send_ext_csd(struct mci *mci, char *ext_csd); int mci_switch(struct mci *mci, unsigned index, unsigned value); +int mci_switch_status(struct mci *mci, bool crc_err_fatal); u8 *mci_get_ext_csd(struct mci *mci); static inline int mmc_host_is_spi(struct mci_host *host) @@ -604,4 +617,29 @@ static inline struct mci *mci_get_device_by_devpath(const char *devpath) return mci_get_device_by_name(devpath_to_name(devpath)); } +#define MMC_HIGH_26_MAX_DTR 26000000 +#define MMC_HIGH_52_MAX_DTR 52000000 +#define MMC_HIGH_DDR_MAX_DTR 52000000 +#define MMC_HS200_MAX_DTR 200000000 + +static inline int mmc_card_hs(struct mci *mci) +{ + return mci->host->timing == MMC_TIMING_SD_HS || + mci->host->timing == MMC_TIMING_MMC_HS; +} + +/* + * Execute tuning sequence to seek the proper bus operating + * conditions for HS200 and HS400, which sends CMD21 to the device. + */ +int mmc_hs200_tuning(struct mci *mci); +int mci_execute_tuning(struct mci *mci); +int mci_send_abort_tuning(struct mci *mci, u32 opcode); +int mmc_select_timing(struct mci *mci); + +static inline bool mmc_card_hs200(struct mci *mci) +{ + return mci->host->timing == MMC_TIMING_MMC_HS200; +} + #endif /* _MCI_H_ */ |