/* * 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 <linux/list.h> #include <linux/compiler.h> #define SD_VERSION_SD 0x20000 #define SD_VERSION_3 (SD_VERSION_SD | 0x300) #define SD_VERSION_2 (SD_VERSION_SD | 0x200) #define SD_VERSION_1_0 (SD_VERSION_SD | 0x100) #define SD_VERSION_1_10 (SD_VERSION_SD | 0x10a) #define MMC_VERSION_MMC 0x10000 #define MMC_VERSION_UNKNOWN (MMC_VERSION_MMC) #define MMC_VERSION_1_2 (MMC_VERSION_MMC | 0x102) #define MMC_VERSION_1_4 (MMC_VERSION_MMC | 0x104) #define MMC_VERSION_2_2 (MMC_VERSION_MMC | 0x202) #define MMC_VERSION_3 (MMC_VERSION_MMC | 0x300) #define MMC_VERSION_4 (MMC_VERSION_MMC | 0x400) #define MMC_VERSION_4_1 (MMC_VERSION_MMC | 0x401) #define MMC_VERSION_4_2 (MMC_VERSION_MMC | 0x402) #define MMC_VERSION_4_3 (MMC_VERSION_MMC | 0x403) #define MMC_VERSION_4_41 (MMC_VERSION_MMC | 0x429) #define MMC_VERSION_4_5 (MMC_VERSION_MMC | 0x405) #define MMC_MODE_HS 0x001 #define MMC_MODE_HS_52MHz 0x010 #define MMC_MODE_4BIT 0x100 #define MMC_MODE_8BIT 0x200 #define MMC_MODE_SPI 0x400 #define MMC_MODE_HC 0x800 #define MMC_MODE_MASK_WIDTH_BITS (MMC_MODE_4BIT | MMC_MODE_8BIT) #define MMC_MODE_WIDTH_BITS_SHIFT 8 #define SD_DATA_4BIT 0x00040000 #define IS_SD(x) (x->version & SD_VERSION_SD) #define MMC_DATA_READ 1 #define MMC_DATA_WRITE 2 #define NO_CARD_ERR -16 /* No SD/MMC card inserted */ #define UNUSABLE_ERR -17 /* Unusable Card */ #define COMM_ERR -18 /* Communications Error */ #define TIMEOUT -19 #define IN_PROGRESS -20 /* operation is in progress */ #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_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_APP_SET_BUS_WIDTH 6 #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 /* SCR definitions in different words */ #define SD_HIGHSPEED_BUSY 0x00020000 #define SD_HIGHSPEED_SUPPORTED 0x00020000 #define MMC_HS_TIMING 0x00000100 #define MMC_HS_52MHZ 0x2 #define OCR_BUSY 0x80000000 #define OCR_HCS 0x40000000 #define OCR_VOLTAGE_MASK 0x007FFF80 #define OCR_ACCESS_MODE 0x60000000 #define SECURE_ERASE 0x80000000 #define MMC_STATUS_MASK (~0x0206BF7F) #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_GP_SIZE_MULT 143 /* R/W */ #define EXT_CSD_PARTITIONS_ATTRIBUTE 156 /* R/W */ #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */ #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 */ /* * 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_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_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_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 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 PART_ENH_ATTRIB (0x1f) /* 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 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; }; struct mmc { struct list_head link; char name[32]; void *priv; uint voltages; uint version; uint has_init; uint f_min; uint f_max; int high_capacity; uint bus_width; uint clock; uint card_caps; uint host_caps; uint ocr; uint dsr; uint dsr_imp; uint scr[2]; uint csd[4]; uint cid[4]; ushort rca; char part_config; char part_num; uint tran_speed; uint read_bl_len; uint write_bl_len; uint erase_grp_size; u64 capacity; u64 capacity_user; u64 capacity_boot; u64 capacity_rpmb; u64 capacity_gp[4]; block_dev_desc_t block_dev; int (*send_cmd)(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data); void (*set_ios)(struct mmc *mmc); int (*init)(struct mmc *mmc); int (*getcd)(struct mmc *mmc); int (*getwp)(struct mmc *mmc); uint b_max; 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 */ uint op_cond_response; /* the response byte from the last op_cond */ }; int mmc_register(struct mmc *mmc); int mmc_initialize(bd_t *bis); int mmc_init(struct mmc *mmc); int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size); void mmc_set_clock(struct mmc *mmc, uint clock); struct mmc *find_mmc_device(int dev_num); int mmc_set_dev(int dev_num); void print_mmc_devices(char separator); int get_mmc_num(void); int board_mmc_getcd(struct mmc *mmc); int mmc_switch_part(int dev_num, unsigned int part_num); int mmc_getcd(struct mmc *mmc); int mmc_getwp(struct mmc *mmc); 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); /** * 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_GENERIC_MMC #ifdef CONFIG_MMC_SPI #define mmc_host_is_spi(mmc) ((mmc)->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); #else int mmc_legacy_init(int verbose); #endif #endif /* _MMC_H_ */