| /* |
| * 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> |
| #include <part.h> |
| |
| /* 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_MODE_HS (1 << 0) |
| #define MMC_MODE_HS_52MHz (1 << 1) |
| #define MMC_MODE_4BIT (1 << 2) |
| #define MMC_MODE_8BIT (1 << 3) |
| #define MMC_MODE_SPI (1 << 4) |
| #define MMC_MODE_DDR_52MHz (1 << 5) |
| |
| #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 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 SWITCH_ERR -20 /* Card reports failure to switch mode */ |
| |
| #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_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_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 OCR_BUSY 0x80000000 |
| #define OCR_HCS 0x40000000 |
| #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_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_SEC_FEATURE_SUPPORT 231 /* RO */ |
| |
| #define EXT_CSD_SEC_ER_EN (1 << 0) |
| #define EXT_CSD_SEC_GB_CL_EN (1 << 4) |
| /* |
| * 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_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_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 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) |
| |
| /* 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 */ |
| |
| #define MMC_SECURE_TRIM1_ARG 0x80000001 |
| #define MMC_SECURE_TRIM2_ARG 0x80008000 |
| |
| |
| 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; |
| |
| struct mmc_ops { |
| 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); |
| }; |
| |
| struct mmc_config { |
| const char *name; |
| const struct mmc_ops *ops; |
| uint host_caps; |
| uint voltages; |
| uint f_min; |
| uint f_max; |
| uint b_max; |
| unsigned char part_type; |
| }; |
| |
| /* TODO struct mmc should be in mmc_private but it's hard to fix right now */ |
| struct mmc { |
| struct list_head link; |
| const struct mmc_config *cfg; /* provided configuration */ |
| uint version; |
| void *priv; |
| uint has_init; |
| int high_capacity; |
| uint bus_width; |
| uint clock; |
| uint card_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; |
| char part_config; |
| char part_num; |
| uint tran_speed; |
| uint read_bl_len; |
| uint write_bl_len; |
| uint erase_grp_size; /* in 512-byte sectors */ |
| uint hc_wp_grp_size; /* in 512-byte sectors */ |
| u64 capacity; |
| u64 capacity_user; |
| u64 capacity_boot; |
| u64 capacity_rpmb; |
| u64 capacity_gp[4]; |
| u64 enh_user_start; |
| u64 enh_user_size; |
| block_dev_desc_t block_dev; |
| 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; |
| uchar sec_feature_support; |
| }; |
| |
| 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, |
| }; |
| |
| int mmc_register(struct mmc *mmc); |
| struct mmc *mmc_create(const struct mmc_config *cfg, void *priv); |
| void mmc_destroy(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 mmc_switch_part(int dev_num, unsigned int part_num); |
| int mmc_hwpart_config(struct mmc *mmc, const struct mmc_hwpart_conf *conf, |
| enum mmc_hwpart_conf_mode mode); |
| 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); |
| 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); |
| /** |
| * 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)->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); |
| #else |
| int mmc_legacy_init(int verbose); |
| #endif |
| |
| 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); |
| |
| struct pci_device_id; |
| |
| /** |
| * pci_mmc_init() - set up PCI MMC devices |
| * |
| * This finds all the matching PCI IDs and sets them up as MMC devices. |
| * |
| * @name: Name to use for devices |
| * @mmc_supported: PCI IDs to search for |
| * @num_ids: Number of elements in @mmc_supported |
| */ |
| int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported, |
| int num_ids); |
| |
| /* 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 |
| |
| #endif /* _MMC_H_ */ |