2 * Copyright 2008,2010 Freescale Semiconductor, Inc
5 * Based (loosely) on the Linux code
7 * SPDX-License-Identifier: GPL-2.0+
13 #include <linux/list.h>
14 #include <linux/compiler.h>
17 #define SD_VERSION_SD 0x20000
18 #define SD_VERSION_3 (SD_VERSION_SD | 0x300)
19 #define SD_VERSION_2 (SD_VERSION_SD | 0x200)
20 #define SD_VERSION_1_0 (SD_VERSION_SD | 0x100)
21 #define SD_VERSION_1_10 (SD_VERSION_SD | 0x10a)
22 #define MMC_VERSION_MMC 0x10000
23 #define MMC_VERSION_UNKNOWN (MMC_VERSION_MMC)
24 #define MMC_VERSION_1_2 (MMC_VERSION_MMC | 0x102)
25 #define MMC_VERSION_1_4 (MMC_VERSION_MMC | 0x104)
26 #define MMC_VERSION_2_2 (MMC_VERSION_MMC | 0x202)
27 #define MMC_VERSION_3 (MMC_VERSION_MMC | 0x300)
28 #define MMC_VERSION_4 (MMC_VERSION_MMC | 0x400)
29 #define MMC_VERSION_4_1 (MMC_VERSION_MMC | 0x401)
30 #define MMC_VERSION_4_2 (MMC_VERSION_MMC | 0x402)
31 #define MMC_VERSION_4_3 (MMC_VERSION_MMC | 0x403)
32 #define MMC_VERSION_4_41 (MMC_VERSION_MMC | 0x429)
33 #define MMC_VERSION_4_5 (MMC_VERSION_MMC | 0x405)
35 #define MMC_MODE_HS (1 << 0)
36 #define MMC_MODE_HS_52MHz (1 << 1)
37 #define MMC_MODE_4BIT (1 << 2)
38 #define MMC_MODE_8BIT (1 << 3)
39 #define MMC_MODE_SPI (1 << 4)
40 #define MMC_MODE_HC (1 << 5)
41 #define MMC_MODE_DDR_52MHz (1 << 6)
43 #define SD_DATA_4BIT 0x00040000
45 #define IS_SD(x) (x->version & SD_VERSION_SD)
47 #define MMC_DATA_READ 1
48 #define MMC_DATA_WRITE 2
50 #define NO_CARD_ERR -16 /* No SD/MMC card inserted */
51 #define UNUSABLE_ERR -17 /* Unusable Card */
52 #define COMM_ERR -18 /* Communications Error */
54 #define IN_PROGRESS -20 /* operation is in progress */
55 #define SWITCH_ERR -21 /* Card reports failure to switch mode */
57 #define MMC_CMD_GO_IDLE_STATE 0
58 #define MMC_CMD_SEND_OP_COND 1
59 #define MMC_CMD_ALL_SEND_CID 2
60 #define MMC_CMD_SET_RELATIVE_ADDR 3
61 #define MMC_CMD_SET_DSR 4
62 #define MMC_CMD_SWITCH 6
63 #define MMC_CMD_SELECT_CARD 7
64 #define MMC_CMD_SEND_EXT_CSD 8
65 #define MMC_CMD_SEND_CSD 9
66 #define MMC_CMD_SEND_CID 10
67 #define MMC_CMD_STOP_TRANSMISSION 12
68 #define MMC_CMD_SEND_STATUS 13
69 #define MMC_CMD_SET_BLOCKLEN 16
70 #define MMC_CMD_READ_SINGLE_BLOCK 17
71 #define MMC_CMD_READ_MULTIPLE_BLOCK 18
72 #define MMC_CMD_SET_BLOCK_COUNT 23
73 #define MMC_CMD_WRITE_SINGLE_BLOCK 24
74 #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25
75 #define MMC_CMD_ERASE_GROUP_START 35
76 #define MMC_CMD_ERASE_GROUP_END 36
77 #define MMC_CMD_ERASE 38
78 #define MMC_CMD_APP_CMD 55
79 #define MMC_CMD_SPI_READ_OCR 58
80 #define MMC_CMD_SPI_CRC_ON_OFF 59
81 #define MMC_CMD_RES_MAN 62
83 #define MMC_CMD62_ARG1 0xefac62ec
84 #define MMC_CMD62_ARG2 0xcbaea7
87 #define SD_CMD_SEND_RELATIVE_ADDR 3
88 #define SD_CMD_SWITCH_FUNC 6
89 #define SD_CMD_SEND_IF_COND 8
91 #define SD_CMD_APP_SET_BUS_WIDTH 6
92 #define SD_CMD_ERASE_WR_BLK_START 32
93 #define SD_CMD_ERASE_WR_BLK_END 33
94 #define SD_CMD_APP_SEND_OP_COND 41
95 #define SD_CMD_APP_SEND_SCR 51
97 /* SCR definitions in different words */
98 #define SD_HIGHSPEED_BUSY 0x00020000
99 #define SD_HIGHSPEED_SUPPORTED 0x00020000
101 #define OCR_BUSY 0x80000000
102 #define OCR_HCS 0x40000000
103 #define OCR_VOLTAGE_MASK 0x007FFF80
104 #define OCR_ACCESS_MODE 0x60000000
106 #define SECURE_ERASE 0x80000000
108 #define MMC_STATUS_MASK (~0x0206BF7F)
109 #define MMC_STATUS_SWITCH_ERROR (1 << 7)
110 #define MMC_STATUS_RDY_FOR_DATA (1 << 8)
111 #define MMC_STATUS_CURR_STATE (0xf << 9)
112 #define MMC_STATUS_ERROR (1 << 19)
114 #define MMC_STATE_PRG (7 << 9)
116 #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */
117 #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */
118 #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */
119 #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */
120 #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */
121 #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */
122 #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */
123 #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */
124 #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */
125 #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */
126 #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */
127 #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */
128 #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */
129 #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */
130 #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */
131 #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */
132 #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */
134 #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */
135 #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte
136 addressed by index which are
138 #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte
139 addressed by index, which are
141 #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */
143 #define SD_SWITCH_CHECK 0
144 #define SD_SWITCH_SWITCH 1
149 #define EXT_CSD_GP_SIZE_MULT 143 /* R/W */
150 #define EXT_CSD_PARTITIONS_ATTRIBUTE 156 /* R/W */
151 #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */
152 #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */
153 #define EXT_CSD_RPMB_MULT 168 /* RO */
154 #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
155 #define EXT_CSD_BOOT_BUS_WIDTH 177
156 #define EXT_CSD_PART_CONF 179 /* R/W */
157 #define EXT_CSD_BUS_WIDTH 183 /* R/W */
158 #define EXT_CSD_HS_TIMING 185 /* R/W */
159 #define EXT_CSD_REV 192 /* RO */
160 #define EXT_CSD_CARD_TYPE 196 /* RO */
161 #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
162 #define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */
163 #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */
164 #define EXT_CSD_BOOT_MULT 226 /* RO */
167 * EXT_CSD field definitions
170 #define EXT_CSD_CMD_SET_NORMAL (1 << 0)
171 #define EXT_CSD_CMD_SET_SECURE (1 << 1)
172 #define EXT_CSD_CMD_SET_CPSECURE (1 << 2)
174 #define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */
175 #define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */
176 #define EXT_CSD_CARD_TYPE_DDR_1_8V (1 << 2)
177 #define EXT_CSD_CARD_TYPE_DDR_1_2V (1 << 3)
178 #define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \
179 | EXT_CSD_CARD_TYPE_DDR_1_2V)
181 #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
182 #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
183 #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
184 #define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */
185 #define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */
187 #define EXT_CSD_BOOT_ACK_ENABLE (1 << 6)
188 #define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3)
189 #define EXT_CSD_PARTITION_ACCESS_ENABLE (1 << 0)
190 #define EXT_CSD_PARTITION_ACCESS_DISABLE (0 << 0)
192 #define EXT_CSD_BOOT_ACK(x) (x << 6)
193 #define EXT_CSD_BOOT_PART_NUM(x) (x << 3)
194 #define EXT_CSD_PARTITION_ACCESS(x) (x << 0)
196 #define EXT_CSD_BOOT_BUS_WIDTH_MODE(x) (x << 3)
197 #define EXT_CSD_BOOT_BUS_WIDTH_RESET(x) (x << 2)
198 #define EXT_CSD_BOOT_BUS_WIDTH_WIDTH(x) (x)
200 #define R1_ILLEGAL_COMMAND (1 << 22)
201 #define R1_APP_CMD (1 << 5)
203 #define MMC_RSP_PRESENT (1 << 0)
204 #define MMC_RSP_136 (1 << 1) /* 136 bit response */
205 #define MMC_RSP_CRC (1 << 2) /* expect valid crc */
206 #define MMC_RSP_BUSY (1 << 3) /* card may send busy */
207 #define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
209 #define MMC_RSP_NONE (0)
210 #define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
211 #define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \
213 #define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
214 #define MMC_RSP_R3 (MMC_RSP_PRESENT)
215 #define MMC_RSP_R4 (MMC_RSP_PRESENT)
216 #define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
217 #define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
218 #define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
220 #define MMCPART_NOAVAILABLE (0xff)
221 #define PART_ACCESS_MASK (0x7)
222 #define PART_SUPPORT (0x1)
223 #define PART_ENH_ATTRIB (0x1f)
225 /* Maximum block size for MMC */
226 #define MMC_MAX_BLOCK_LEN 512
228 /* The number of MMC physical partitions. These consist of:
229 * boot partitions (2), general purpose partitions (4) in MMC v4.4.
231 #define MMC_NUM_BOOT_PARTITION 2
232 #define MMC_PART_RPMB 3 /* RPMB partition number */
253 const char *src; /* src buffers don't get written to */
264 int (*send_cmd)(struct mmc *mmc,
265 struct mmc_cmd *cmd, struct mmc_data *data);
266 void (*set_ios)(struct mmc *mmc);
267 int (*init)(struct mmc *mmc);
268 int (*getcd)(struct mmc *mmc);
269 int (*getwp)(struct mmc *mmc);
274 const struct mmc_ops *ops;
280 unsigned char part_type;
283 /* TODO struct mmc should be in mmc_private but it's hard to fix right now */
285 struct list_head link;
286 const struct mmc_config *cfg; /* provided configuration */
312 block_dev_desc_t block_dev;
313 char op_cond_pending; /* 1 if we are waiting on an op_cond command */
314 char init_in_progress; /* 1 if we have done mmc_start_init() */
315 char preinit; /* start init as early as possible */
316 uint op_cond_response; /* the response byte from the last op_cond */
319 int mmc_register(struct mmc *mmc);
320 struct mmc *mmc_create(const struct mmc_config *cfg, void *priv);
321 void mmc_destroy(struct mmc *mmc);
322 int mmc_initialize(bd_t *bis);
323 int mmc_init(struct mmc *mmc);
324 int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
325 void mmc_set_clock(struct mmc *mmc, uint clock);
326 struct mmc *find_mmc_device(int dev_num);
327 int mmc_set_dev(int dev_num);
328 void print_mmc_devices(char separator);
329 int get_mmc_num(void);
330 int mmc_switch_part(int dev_num, unsigned int part_num);
331 int mmc_getcd(struct mmc *mmc);
332 int board_mmc_getcd(struct mmc *mmc);
333 int mmc_getwp(struct mmc *mmc);
334 int board_mmc_getwp(struct mmc *mmc);
335 int mmc_set_dsr(struct mmc *mmc, u16 val);
336 /* Function to change the size of boot partition and rpmb partitions */
337 int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize,
338 unsigned long rpmbsize);
339 /* Function to modify the PARTITION_CONFIG field of EXT_CSD */
340 int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access);
341 /* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */
342 int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode);
343 /* Function to modify the RST_n_FUNCTION field of EXT_CSD */
344 int mmc_set_rst_n_function(struct mmc *mmc, u8 enable);
345 /* Functions to read / write the RPMB partition */
346 int mmc_rpmb_set_key(struct mmc *mmc, void *key);
347 int mmc_rpmb_get_counter(struct mmc *mmc, unsigned long *counter);
348 int mmc_rpmb_read(struct mmc *mmc, void *addr, unsigned short blk,
349 unsigned short cnt, unsigned char *key);
350 int mmc_rpmb_write(struct mmc *mmc, void *addr, unsigned short blk,
351 unsigned short cnt, unsigned char *key);
353 * Start device initialization and return immediately; it does not block on
354 * polling OCR (operation condition register) status. Then you should call
355 * mmc_init, which would block on polling OCR status and complete the device
358 * @param mmc Pointer to a MMC device struct
359 * @return 0 on success, IN_PROGRESS on waiting for OCR status, <0 on error.
361 int mmc_start_init(struct mmc *mmc);
364 * Set preinit flag of mmc device.
366 * This will cause the device to be pre-inited during mmc_initialize(),
367 * which may save boot time if the device is not accessed until later.
368 * Some eMMC devices take 200-300ms to init, but unfortunately they
369 * must be sent a series of commands to even get them to start preparing
372 * @param mmc Pointer to a MMC device struct
373 * @param preinit preinit flag value
375 void mmc_set_preinit(struct mmc *mmc, int preinit);
377 #ifdef CONFIG_GENERIC_MMC
378 #ifdef CONFIG_MMC_SPI
379 #define mmc_host_is_spi(mmc) ((mmc)->cfg->host_caps & MMC_MODE_SPI)
381 #define mmc_host_is_spi(mmc) 0
383 struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode);
385 int mmc_legacy_init(int verbose);
388 int board_mmc_init(bd_t *bis);
389 int cpu_mmc_init(bd_t *bis);
391 /* Set block count limit because of 16 bit register limit on some hardware*/
392 #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT
393 #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535