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u-boot/include/mmc.h
Paul Kocialkowski 95de9ab201 mmc: Board-specific MMC power initializations 
Some devices may use non-standard combinations of regulators to power MMC:
this allows these devices to provide a board-specific MMC power init function
to set everything up in their own way.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
2014-12-04 11:04:40 -05:00

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/*
* 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>
#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 (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_HC (1 << 5)
#define MMC_MODE_DDR_52MHz (1 << 6)
#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 SWITCH_ERR -21 /* 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_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 SECURE_ERASE 0x80000000
#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_GP_SIZE_MULT 143 /* R/W */
#define EXT_CSD_PARTITIONS_ATTRIBUTE 156 /* R/W */
#define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */
#define EXT_CSD_RST_N_FUNCTION 162 /* 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 */
/*
* 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 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
#define MMC_PART_RPMB 3 /* RPMB partition number */
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;
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;
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);
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_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);
/* 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_ */
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