/* * Copyright 2008,2010 Freescale Semiconductor, Inc * Andy Fleming * * Based (loosely) on the Linux code * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _MMC_H_ #define _MMC_H_ #include #include #include #include #if CONFIG_IS_ENABLED(MMC_HS200_SUPPORT) #define MMC_SUPPORTS_TUNING #endif #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) #define MMC_SUPPORTS_TUNING #endif /* SD/MMC version bits; 8 flags, 8 major, 8 minor, 8 change */ #define SD_VERSION_SD (1U << 31) #define MMC_VERSION_MMC (1U << 30) #define MAKE_SDMMC_VERSION(a, b, c) \ ((((u32)(a)) << 16) | ((u32)(b) << 8) | (u32)(c)) #define MAKE_SD_VERSION(a, b, c) \ (SD_VERSION_SD | MAKE_SDMMC_VERSION(a, b, c)) #define MAKE_MMC_VERSION(a, b, c) \ (MMC_VERSION_MMC | MAKE_SDMMC_VERSION(a, b, c)) #define EXTRACT_SDMMC_MAJOR_VERSION(x) \ (((u32)(x) >> 16) & 0xff) #define EXTRACT_SDMMC_MINOR_VERSION(x) \ (((u32)(x) >> 8) & 0xff) #define EXTRACT_SDMMC_CHANGE_VERSION(x) \ ((u32)(x) & 0xff) #define SD_VERSION_3 MAKE_SD_VERSION(3, 0, 0) #define SD_VERSION_2 MAKE_SD_VERSION(2, 0, 0) #define SD_VERSION_1_0 MAKE_SD_VERSION(1, 0, 0) #define SD_VERSION_1_10 MAKE_SD_VERSION(1, 10, 0) #define MMC_VERSION_UNKNOWN MAKE_MMC_VERSION(0, 0, 0) #define MMC_VERSION_1_2 MAKE_MMC_VERSION(1, 2, 0) #define MMC_VERSION_1_4 MAKE_MMC_VERSION(1, 4, 0) #define MMC_VERSION_2_2 MAKE_MMC_VERSION(2, 2, 0) #define MMC_VERSION_3 MAKE_MMC_VERSION(3, 0, 0) #define MMC_VERSION_4 MAKE_MMC_VERSION(4, 0, 0) #define MMC_VERSION_4_1 MAKE_MMC_VERSION(4, 1, 0) #define MMC_VERSION_4_2 MAKE_MMC_VERSION(4, 2, 0) #define MMC_VERSION_4_3 MAKE_MMC_VERSION(4, 3, 0) #define MMC_VERSION_4_41 MAKE_MMC_VERSION(4, 4, 1) #define MMC_VERSION_4_5 MAKE_MMC_VERSION(4, 5, 0) #define MMC_VERSION_5_0 MAKE_MMC_VERSION(5, 0, 0) #define MMC_VERSION_5_1 MAKE_MMC_VERSION(5, 1, 0) #define MMC_CAP(mode) (1 << mode) #define MMC_MODE_HS (MMC_CAP(MMC_HS) | MMC_CAP(SD_HS)) #define MMC_MODE_HS_52MHz MMC_CAP(MMC_HS_52) #define MMC_MODE_DDR_52MHz MMC_CAP(MMC_DDR_52) #define MMC_MODE_HS200 MMC_CAP(MMC_HS_200) #define MMC_MODE_8BIT BIT(30) #define MMC_MODE_4BIT BIT(29) #define MMC_MODE_1BIT BIT(28) #define MMC_MODE_SPI BIT(27) #define SD_DATA_4BIT 0x00040000 #define IS_SD(x) ((x)->version & SD_VERSION_SD) #define IS_MMC(x) ((x)->version & MMC_VERSION_MMC) #define MMC_DATA_READ 1 #define MMC_DATA_WRITE 2 #define MMC_CMD_GO_IDLE_STATE 0 #define MMC_CMD_SEND_OP_COND 1 #define MMC_CMD_ALL_SEND_CID 2 #define MMC_CMD_SET_RELATIVE_ADDR 3 #define MMC_CMD_SET_DSR 4 #define MMC_CMD_SWITCH 6 #define MMC_CMD_SELECT_CARD 7 #define MMC_CMD_SEND_EXT_CSD 8 #define MMC_CMD_SEND_CSD 9 #define MMC_CMD_SEND_CID 10 #define MMC_CMD_STOP_TRANSMISSION 12 #define MMC_CMD_SEND_STATUS 13 #define MMC_CMD_SET_BLOCKLEN 16 #define MMC_CMD_READ_SINGLE_BLOCK 17 #define MMC_CMD_READ_MULTIPLE_BLOCK 18 #define MMC_CMD_SEND_TUNING_BLOCK 19 #define MMC_CMD_SEND_TUNING_BLOCK_HS200 21 #define MMC_CMD_SET_BLOCK_COUNT 23 #define MMC_CMD_WRITE_SINGLE_BLOCK 24 #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25 #define MMC_CMD_ERASE_GROUP_START 35 #define MMC_CMD_ERASE_GROUP_END 36 #define MMC_CMD_ERASE 38 #define MMC_CMD_APP_CMD 55 #define MMC_CMD_SPI_READ_OCR 58 #define MMC_CMD_SPI_CRC_ON_OFF 59 #define MMC_CMD_RES_MAN 62 #define MMC_CMD62_ARG1 0xefac62ec #define MMC_CMD62_ARG2 0xcbaea7 #define SD_CMD_SEND_RELATIVE_ADDR 3 #define SD_CMD_SWITCH_FUNC 6 #define SD_CMD_SEND_IF_COND 8 #define SD_CMD_SWITCH_UHS18V 11 #define SD_CMD_APP_SET_BUS_WIDTH 6 #define SD_CMD_APP_SD_STATUS 13 #define SD_CMD_ERASE_WR_BLK_START 32 #define SD_CMD_ERASE_WR_BLK_END 33 #define SD_CMD_APP_SEND_OP_COND 41 #define SD_CMD_APP_SEND_SCR 51 static inline bool mmc_is_tuning_cmd(uint cmdidx) { if ((cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200) || (cmdidx == MMC_CMD_SEND_TUNING_BLOCK)) return true; return false; } /* SCR definitions in different words */ #define SD_HIGHSPEED_BUSY 0x00020000 #define SD_HIGHSPEED_SUPPORTED 0x00020000 #define UHS_SDR12_BUS_SPEED 0 #define HIGH_SPEED_BUS_SPEED 1 #define UHS_SDR25_BUS_SPEED 1 #define UHS_SDR50_BUS_SPEED 2 #define UHS_SDR104_BUS_SPEED 3 #define UHS_DDR50_BUS_SPEED 4 #define SD_MODE_UHS_SDR12 BIT(UHS_SDR12_BUS_SPEED) #define SD_MODE_UHS_SDR25 BIT(UHS_SDR25_BUS_SPEED) #define SD_MODE_UHS_SDR50 BIT(UHS_SDR50_BUS_SPEED) #define SD_MODE_UHS_SDR104 BIT(UHS_SDR104_BUS_SPEED) #define SD_MODE_UHS_DDR50 BIT(UHS_DDR50_BUS_SPEED) #define OCR_BUSY 0x80000000 #define OCR_HCS 0x40000000 #define OCR_S18R 0x1000000 #define OCR_VOLTAGE_MASK 0x007FFF80 #define OCR_ACCESS_MODE 0x60000000 #define MMC_ERASE_ARG 0x00000000 #define MMC_SECURE_ERASE_ARG 0x80000000 #define MMC_TRIM_ARG 0x00000001 #define MMC_DISCARD_ARG 0x00000003 #define MMC_SECURE_TRIM1_ARG 0x80000001 #define MMC_SECURE_TRIM2_ARG 0x80008000 #define MMC_STATUS_MASK (~0x0206BF7F) #define MMC_STATUS_SWITCH_ERROR (1 << 7) #define MMC_STATUS_RDY_FOR_DATA (1 << 8) #define MMC_STATUS_CURR_STATE (0xf << 9) #define MMC_STATUS_ERROR (1 << 19) #define MMC_STATE_PRG (7 << 9) #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */ #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */ #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */ #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */ #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */ #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */ #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */ #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */ #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */ #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */ #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */ #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */ #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */ #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte addressed by index which are 1 in value field */ #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte addressed by index, which are 1 in value field */ #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */ #define SD_SWITCH_CHECK 0 #define SD_SWITCH_SWITCH 1 /* * EXT_CSD fields */ #define EXT_CSD_ENH_START_ADDR 136 /* R/W */ #define EXT_CSD_ENH_SIZE_MULT 140 /* R/W */ #define EXT_CSD_GP_SIZE_MULT 143 /* R/W */ #define EXT_CSD_PARTITION_SETTING 155 /* R/W */ #define EXT_CSD_PARTITIONS_ATTRIBUTE 156 /* R/W */ #define EXT_CSD_MAX_ENH_SIZE_MULT 157 /* R */ #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */ #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */ #define EXT_CSD_BKOPS_EN 163 /* R/W & R/W/E */ #define EXT_CSD_WR_REL_PARAM 166 /* R */ #define EXT_CSD_WR_REL_SET 167 /* R/W */ #define EXT_CSD_RPMB_MULT 168 /* RO */ #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ #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_HS_TIMING 185 /* R/W */ #define EXT_CSD_REV 192 /* RO */ #define EXT_CSD_CARD_TYPE 196 /* RO */ #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ #define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */ #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ #define EXT_CSD_BOOT_MULT 226 /* RO */ #define EXT_CSD_BKOPS_SUPPORT 502 /* RO */ /* * EXT_CSD field definitions */ #define EXT_CSD_CMD_SET_NORMAL (1 << 0) #define EXT_CSD_CMD_SET_SECURE (1 << 1) #define EXT_CSD_CMD_SET_CPSECURE (1 << 2) #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_DDR_1_8V (1 << 2) #define EXT_CSD_CARD_TYPE_DDR_1_2V (1 << 3) #define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \ | EXT_CSD_CARD_TYPE_DDR_1_2V) #define EXT_CSD_CARD_TYPE_HS200_1_8V BIT(4) /* Card can run at 200MHz */ /* SDR mode @1.8V I/O */ #define EXT_CSD_CARD_TYPE_HS200_1_2V BIT(5) /* Card can run at 200MHz */ /* SDR mode @1.2V I/O */ #define EXT_CSD_CARD_TYPE_HS200 (EXT_CSD_CARD_TYPE_HS200_1_8V | \ EXT_CSD_CARD_TYPE_HS200_1_2V) #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */ #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ #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 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_BOOT_ACK_ENABLE (1 << 6) #define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3) #define EXT_CSD_PARTITION_ACCESS_ENABLE (1 << 0) #define EXT_CSD_PARTITION_ACCESS_DISABLE (0 << 0) #define EXT_CSD_BOOT_ACK(x) (x << 6) #define EXT_CSD_BOOT_PART_NUM(x) (x << 3) #define EXT_CSD_PARTITION_ACCESS(x) (x << 0) #define EXT_CSD_EXTRACT_BOOT_ACK(x) (((x) >> 6) & 0x1) #define EXT_CSD_EXTRACT_BOOT_PART(x) (((x) >> 3) & 0x7) #define EXT_CSD_EXTRACT_PARTITION_ACCESS(x) ((x) & 0x7) #define EXT_CSD_BOOT_BUS_WIDTH_MODE(x) (x << 3) #define EXT_CSD_BOOT_BUS_WIDTH_RESET(x) (x << 2) #define EXT_CSD_BOOT_BUS_WIDTH_WIDTH(x) (x) #define EXT_CSD_PARTITION_SETTING_COMPLETED (1 << 0) #define EXT_CSD_ENH_USR (1 << 0) /* user data area is enhanced */ #define EXT_CSD_ENH_GP(x) (1 << ((x)+1)) /* GP part (x+1) is enhanced */ #define EXT_CSD_HS_CTRL_REL (1 << 0) /* host controlled WR_REL_SET */ #define EXT_CSD_WR_DATA_REL_USR (1 << 0) /* user data area WR_REL */ #define EXT_CSD_WR_DATA_REL_GP(x) (1 << ((x)+1)) /* GP part (x+1) WR_REL */ #define R1_ILLEGAL_COMMAND (1 << 22) #define R1_APP_CMD (1 << 5) #define MMC_RSP_PRESENT (1 << 0) #define MMC_RSP_136 (1 << 1) /* 136 bit response */ #define MMC_RSP_CRC (1 << 2) /* expect valid crc */ #define MMC_RSP_BUSY (1 << 3) /* card may send busy */ #define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */ #define MMC_RSP_NONE (0) #define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) #define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \ MMC_RSP_BUSY) #define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC) #define MMC_RSP_R3 (MMC_RSP_PRESENT) #define MMC_RSP_R4 (MMC_RSP_PRESENT) #define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) #define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) #define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) #define MMCPART_NOAVAILABLE (0xff) #define PART_ACCESS_MASK (0x7) #define PART_SUPPORT (0x1) #define ENHNCD_SUPPORT (0x2) #define PART_ENH_ATTRIB (0x1f) #define MMC_QUIRK_RETRY_SEND_CID BIT(0) #define MMC_QUIRK_RETRY_SET_BLOCKLEN BIT(1) enum mmc_voltage { MMC_SIGNAL_VOLTAGE_000 = 0, MMC_SIGNAL_VOLTAGE_120 = 1, MMC_SIGNAL_VOLTAGE_180 = 2, MMC_SIGNAL_VOLTAGE_330 = 4, }; #define MMC_ALL_SIGNAL_VOLTAGE (MMC_SIGNAL_VOLTAGE_120 |\ MMC_SIGNAL_VOLTAGE_180 |\ MMC_SIGNAL_VOLTAGE_330) /* Maximum block size for MMC */ #define MMC_MAX_BLOCK_LEN 512 /* The number of MMC physical partitions. These consist of: * boot partitions (2), general purpose partitions (4) in MMC v4.4. */ #define MMC_NUM_BOOT_PARTITION 2 #define MMC_PART_RPMB 3 /* RPMB partition number */ /* Driver model support */ /** * struct mmc_uclass_priv - Holds information about a device used by the uclass */ struct mmc_uclass_priv { struct mmc *mmc; }; /** * mmc_get_mmc_dev() - get the MMC struct pointer for a device * * Provided that the device is already probed and ready for use, this value * will be available. * * @dev: Device * @return associated mmc struct pointer if available, else NULL */ struct mmc *mmc_get_mmc_dev(struct udevice *dev); /* End of driver model support */ struct mmc_cid { unsigned long psn; unsigned short oid; unsigned char mid; unsigned char prv; unsigned char mdt; char pnm[7]; }; struct mmc_cmd { ushort cmdidx; uint resp_type; uint cmdarg; uint response[4]; }; struct mmc_data { union { char *dest; const char *src; /* src buffers don't get written to */ }; uint flags; uint blocks; uint blocksize; }; /* forward decl. */ struct mmc; #if CONFIG_IS_ENABLED(DM_MMC) struct dm_mmc_ops { /** * send_cmd() - Send a command to the MMC device * * @dev: Device to receive the command * @cmd: Command to send * @data: Additional data to send/receive * @return 0 if OK, -ve on error */ int (*send_cmd)(struct udevice *dev, struct mmc_cmd *cmd, struct mmc_data *data); /** * set_ios() - Set the I/O speed/width for an MMC device * * @dev: Device to update * @return 0 if OK, -ve on error */ int (*set_ios)(struct udevice *dev); /** * send_init_stream() - send the initialization stream: 74 clock cycles * This is used after power up before sending the first command * * @dev: Device to update */ void (*send_init_stream)(struct udevice *dev); /** * get_cd() - See whether a card is present * * @dev: Device to check * @return 0 if not present, 1 if present, -ve on error */ int (*get_cd)(struct udevice *dev); /** * get_wp() - See whether a card has write-protect enabled * * @dev: Device to check * @return 0 if write-enabled, 1 if write-protected, -ve on error */ int (*get_wp)(struct udevice *dev); #ifdef MMC_SUPPORTS_TUNING /** * execute_tuning() - Start the tuning process * * @dev: Device to start the tuning * @opcode: Command opcode to send * @return 0 if OK, -ve on error */ int (*execute_tuning)(struct udevice *dev, uint opcode); #endif #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) /** * wait_dat0() - wait until dat0 is in the target state * (CLK must be running during the wait) * * @dev: Device to check * @state: target state * @timeout: timeout in us * @return 0 if dat0 is in the target state, -ve on error */ int (*wait_dat0)(struct udevice *dev, int state, int timeout); #endif }; #define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops) int dm_mmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, struct mmc_data *data); int dm_mmc_set_ios(struct udevice *dev); void dm_mmc_send_init_stream(struct udevice *dev); int dm_mmc_get_cd(struct udevice *dev); int dm_mmc_get_wp(struct udevice *dev); int dm_mmc_execute_tuning(struct udevice *dev, uint opcode); int dm_mmc_wait_dat0(struct udevice *dev, int state, int timeout); /* Transition functions for compatibility */ int mmc_set_ios(struct mmc *mmc); void mmc_send_init_stream(struct mmc *mmc); 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); #else struct mmc_ops { int (*send_cmd)(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data); int (*set_ios)(struct mmc *mmc); int (*init)(struct mmc *mmc); int (*getcd)(struct mmc *mmc); int (*getwp)(struct mmc *mmc); }; #endif struct mmc_config { const char *name; #if !CONFIG_IS_ENABLED(DM_MMC) const struct mmc_ops *ops; #endif uint host_caps; uint voltages; uint f_min; uint f_max; uint b_max; unsigned char part_type; }; struct sd_ssr { unsigned int au; /* In sectors */ unsigned int erase_timeout; /* In milliseconds */ unsigned int erase_offset; /* In milliseconds */ }; enum bus_mode { MMC_LEGACY, SD_LEGACY, MMC_HS, SD_HS, MMC_HS_52, MMC_DDR_52, UHS_SDR12, UHS_SDR25, UHS_SDR50, UHS_DDR50, UHS_SDR104, MMC_HS_200, MMC_MODES_END }; const char *mmc_mode_name(enum bus_mode mode); void mmc_dump_capabilities(const char *text, uint caps); static inline bool mmc_is_mode_ddr(enum bus_mode mode) { if (mode == MMC_DDR_52) return true; #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) else if (mode == UHS_DDR50) return true; #endif else return false; } #define UHS_CAPS (MMC_CAP(UHS_SDR12) | MMC_CAP(UHS_SDR25) | \ MMC_CAP(UHS_SDR50) | MMC_CAP(UHS_SDR104) | \ MMC_CAP(UHS_DDR50)) static inline bool supports_uhs(uint caps) { #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT) return (caps & UHS_CAPS) ? true : false; #else return false; #endif } /* * With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device * with mmc_get_mmc_dev(). * * TODO struct mmc should be in mmc_private but it's hard to fix right now */ struct mmc { #if !CONFIG_IS_ENABLED(BLK) struct list_head link; #endif const struct mmc_config *cfg; /* provided configuration */ uint version; void *priv; uint has_init; int high_capacity; bool clk_disable; /* true if the clock can be turned off */ uint bus_width; uint clock; enum mmc_voltage signal_voltage; uint card_caps; uint host_caps; uint ocr; uint dsr; uint dsr_imp; uint scr[2]; uint csd[4]; uint cid[4]; ushort rca; u8 part_support; u8 part_attr; u8 wr_rel_set; u8 part_config; uint tran_speed; uint legacy_speed; /* speed for the legacy mode provided by the card */ uint read_bl_len; #if CONFIG_IS_ENABLED(MMC_WRITE) uint write_bl_len; uint erase_grp_size; /* in 512-byte sectors */ #endif uint hc_wp_grp_size; /* in 512-byte sectors */ #if CONFIG_IS_ENABLED(MMC_WRITE) struct sd_ssr ssr; /* SD status register */ #endif u64 capacity; u64 capacity_user; u64 capacity_boot; u64 capacity_rpmb; u64 capacity_gp[4]; #ifndef CONFIG_SPL_BUILD u64 enh_user_start; u64 enh_user_size; #endif #if !CONFIG_IS_ENABLED(BLK) struct blk_desc block_dev; #endif char op_cond_pending; /* 1 if we are waiting on an op_cond command */ char init_in_progress; /* 1 if we have done mmc_start_init() */ char preinit; /* start init as early as possible */ int ddr_mode; #if CONFIG_IS_ENABLED(DM_MMC) struct udevice *dev; /* Device for this MMC controller */ #if CONFIG_IS_ENABLED(DM_REGULATOR) struct udevice *vmmc_supply; /* Main voltage regulator (Vcc)*/ struct udevice *vqmmc_supply; /* IO voltage regulator (Vccq)*/ #endif #endif u8 *ext_csd; u32 cardtype; /* cardtype read from the MMC */ enum mmc_voltage current_voltage; enum bus_mode selected_mode; /* mode currently used */ enum bus_mode best_mode; /* best mode is the supported mode with the * highest bandwidth. It may not always be the * operating mode due to limitations when * accessing the boot partitions */ u32 quirks; }; struct mmc_hwpart_conf { struct { uint enh_start; /* in 512-byte sectors */ uint enh_size; /* in 512-byte sectors, if 0 no enh area */ unsigned wr_rel_change : 1; unsigned wr_rel_set : 1; } user; struct { uint size; /* in 512-byte sectors */ unsigned enhanced : 1; unsigned wr_rel_change : 1; unsigned wr_rel_set : 1; } gp_part[4]; }; enum mmc_hwpart_conf_mode { MMC_HWPART_CONF_CHECK, MMC_HWPART_CONF_SET, MMC_HWPART_CONF_COMPLETE, }; struct mmc *mmc_create(const struct mmc_config *cfg, void *priv); /** * mmc_bind() - Set up a new MMC device ready for probing * * A child block device is bound with the IF_TYPE_MMC interface type. This * allows the device to be used with CONFIG_BLK * * @dev: MMC device to set up * @mmc: MMC struct * @cfg: MMC configuration * @return 0 if OK, -ve on error */ int mmc_bind(struct udevice *dev, struct mmc *mmc, const struct mmc_config *cfg); void mmc_destroy(struct mmc *mmc); /** * mmc_unbind() - Unbind a MMC device's child block device * * @dev: MMC device * @return 0 if OK, -ve on error */ int mmc_unbind(struct udevice *dev); int mmc_initialize(bd_t *bis); int mmc_init(struct mmc *mmc); int mmc_send_tuning(struct mmc *mmc, u32 opcode, int *cmd_error); /** * mmc_of_parse() - Parse the device tree to get the capabilities of the host * * @dev: MMC device * @cfg: MMC configuration * @return 0 if OK, -ve on error */ int mmc_of_parse(struct udevice *dev, struct mmc_config *cfg); int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size); /** * mmc_voltage_to_mv() - Convert a mmc_voltage in mV * * @voltage: The mmc_voltage to convert * @return the value in mV if OK, -EINVAL on error (invalid mmc_voltage value) */ int mmc_voltage_to_mv(enum mmc_voltage voltage); /** * mmc_set_clock() - change the bus clock * @mmc: MMC struct * @clock: bus frequency in Hz * @disable: flag indicating if the clock must on or off * @return 0 if OK, -ve on error */ int mmc_set_clock(struct mmc *mmc, uint clock, bool disable); struct mmc *find_mmc_device(int dev_num); int mmc_set_dev(int dev_num); void print_mmc_devices(char separator); /** * get_mmc_num() - get the total MMC device number * * @return 0 if there is no MMC device, else the number of devices */ int get_mmc_num(void); int mmc_switch_part(struct mmc *mmc, unsigned int part_num); int mmc_hwpart_config(struct mmc *mmc, const struct mmc_hwpart_conf *conf, enum mmc_hwpart_conf_mode mode); #if !CONFIG_IS_ENABLED(DM_MMC) int mmc_getcd(struct mmc *mmc); int board_mmc_getcd(struct mmc *mmc); int mmc_getwp(struct mmc *mmc); int board_mmc_getwp(struct mmc *mmc); #endif int mmc_set_dsr(struct mmc *mmc, u16 val); /* Function to change the size of boot partition and rpmb partitions */ int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, unsigned long rpmbsize); /* Function to modify the PARTITION_CONFIG field of EXT_CSD */ int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access); /* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */ int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode); /* Function to modify the RST_n_FUNCTION field of EXT_CSD */ int mmc_set_rst_n_function(struct mmc *mmc, u8 enable); /* Functions to read / write the RPMB partition */ int mmc_rpmb_set_key(struct mmc *mmc, void *key); int mmc_rpmb_get_counter(struct mmc *mmc, unsigned long *counter); int mmc_rpmb_read(struct mmc *mmc, void *addr, unsigned short blk, unsigned short cnt, unsigned char *key); int mmc_rpmb_write(struct mmc *mmc, void *addr, unsigned short blk, unsigned short cnt, unsigned char *key); #ifdef CONFIG_CMD_BKOPS_ENABLE int mmc_set_bkops_enable(struct mmc *mmc); #endif /** * Start device initialization and return immediately; it does not block on * polling OCR (operation condition register) status. Then you should call * mmc_init, which would block on polling OCR status and complete the device * initializatin. * * @param mmc Pointer to a MMC device struct * @return 0 on success, IN_PROGRESS on waiting for OCR status, <0 on error. */ int mmc_start_init(struct mmc *mmc); /** * Set preinit flag of mmc device. * * This will cause the device to be pre-inited during mmc_initialize(), * which may save boot time if the device is not accessed until later. * Some eMMC devices take 200-300ms to init, but unfortunately they * must be sent a series of commands to even get them to start preparing * for operation. * * @param mmc Pointer to a MMC device struct * @param preinit preinit flag value */ void mmc_set_preinit(struct mmc *mmc, int preinit); #ifdef CONFIG_MMC_SPI #define mmc_host_is_spi(mmc) ((mmc)->cfg->host_caps & MMC_MODE_SPI) #else #define mmc_host_is_spi(mmc) 0 #endif struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode); void board_mmc_power_init(void); int board_mmc_init(bd_t *bis); int cpu_mmc_init(bd_t *bis); int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr); int mmc_get_env_dev(void); /* Set block count limit because of 16 bit register limit on some hardware*/ #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535 #endif /** * mmc_get_blk_desc() - Get the block descriptor for an MMC device * * @mmc: MMC device * @return block device if found, else NULL */ struct blk_desc *mmc_get_blk_desc(struct mmc *mmc); #endif /* _MMC_H_ */