1 /* 2 * Copyright 2008,2010 Freescale Semiconductor, Inc 3 * Andy Fleming 4 * 5 * Based (loosely) on the Linux code 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #ifndef _MMC_H_ 11 #define _MMC_H_ 12 13 #include <linux/list.h> 14 #include <linux/compiler.h> 15 #include <part.h> 16 17 /* SD/MMC version bits; 8 flags, 8 major, 8 minor, 8 change */ 18 #define SD_VERSION_SD (1U << 31) 19 #define MMC_VERSION_MMC (1U << 30) 20 21 #define MAKE_SDMMC_VERSION(a, b, c) \ 22 ((((u32)(a)) << 16) | ((u32)(b) << 8) | (u32)(c)) 23 #define MAKE_SD_VERSION(a, b, c) \ 24 (SD_VERSION_SD | MAKE_SDMMC_VERSION(a, b, c)) 25 #define MAKE_MMC_VERSION(a, b, c) \ 26 (MMC_VERSION_MMC | MAKE_SDMMC_VERSION(a, b, c)) 27 28 #define EXTRACT_SDMMC_MAJOR_VERSION(x) \ 29 (((u32)(x) >> 16) & 0xff) 30 #define EXTRACT_SDMMC_MINOR_VERSION(x) \ 31 (((u32)(x) >> 8) & 0xff) 32 #define EXTRACT_SDMMC_CHANGE_VERSION(x) \ 33 ((u32)(x) & 0xff) 34 35 #define SD_VERSION_3 MAKE_SD_VERSION(3, 0, 0) 36 #define SD_VERSION_2 MAKE_SD_VERSION(2, 0, 0) 37 #define SD_VERSION_1_0 MAKE_SD_VERSION(1, 0, 0) 38 #define SD_VERSION_1_10 MAKE_SD_VERSION(1, 10, 0) 39 40 #define MMC_VERSION_UNKNOWN MAKE_MMC_VERSION(0, 0, 0) 41 #define MMC_VERSION_1_2 MAKE_MMC_VERSION(1, 2, 0) 42 #define MMC_VERSION_1_4 MAKE_MMC_VERSION(1, 4, 0) 43 #define MMC_VERSION_2_2 MAKE_MMC_VERSION(2, 2, 0) 44 #define MMC_VERSION_3 MAKE_MMC_VERSION(3, 0, 0) 45 #define MMC_VERSION_4 MAKE_MMC_VERSION(4, 0, 0) 46 #define MMC_VERSION_4_1 MAKE_MMC_VERSION(4, 1, 0) 47 #define MMC_VERSION_4_2 MAKE_MMC_VERSION(4, 2, 0) 48 #define MMC_VERSION_4_3 MAKE_MMC_VERSION(4, 3, 0) 49 #define MMC_VERSION_4_41 MAKE_MMC_VERSION(4, 4, 1) 50 #define MMC_VERSION_4_5 MAKE_MMC_VERSION(4, 5, 0) 51 #define MMC_VERSION_5_0 MAKE_MMC_VERSION(5, 0, 0) 52 53 #define MMC_MODE_HS (1 << 0) 54 #define MMC_MODE_HS_52MHz (1 << 1) 55 #define MMC_MODE_4BIT (1 << 2) 56 #define MMC_MODE_8BIT (1 << 3) 57 #define MMC_MODE_SPI (1 << 4) 58 #define MMC_MODE_DDR_52MHz (1 << 5) 59 60 #define SD_DATA_4BIT 0x00040000 61 62 #define IS_SD(x) ((x)->version & SD_VERSION_SD) 63 #define IS_MMC(x) ((x)->version & MMC_VERSION_MMC) 64 65 #define MMC_DATA_READ 1 66 #define MMC_DATA_WRITE 2 67 68 #define NO_CARD_ERR -16 /* No SD/MMC card inserted */ 69 #define UNUSABLE_ERR -17 /* Unusable Card */ 70 #define COMM_ERR -18 /* Communications Error */ 71 #define TIMEOUT -19 72 #define SWITCH_ERR -20 /* Card reports failure to switch mode */ 73 74 #define MMC_CMD_GO_IDLE_STATE 0 75 #define MMC_CMD_SEND_OP_COND 1 76 #define MMC_CMD_ALL_SEND_CID 2 77 #define MMC_CMD_SET_RELATIVE_ADDR 3 78 #define MMC_CMD_SET_DSR 4 79 #define MMC_CMD_SWITCH 6 80 #define MMC_CMD_SELECT_CARD 7 81 #define MMC_CMD_SEND_EXT_CSD 8 82 #define MMC_CMD_SEND_CSD 9 83 #define MMC_CMD_SEND_CID 10 84 #define MMC_CMD_STOP_TRANSMISSION 12 85 #define MMC_CMD_SEND_STATUS 13 86 #define MMC_CMD_SET_BLOCKLEN 16 87 #define MMC_CMD_READ_SINGLE_BLOCK 17 88 #define MMC_CMD_READ_MULTIPLE_BLOCK 18 89 #define MMC_CMD_SET_BLOCK_COUNT 23 90 #define MMC_CMD_WRITE_SINGLE_BLOCK 24 91 #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25 92 #define MMC_CMD_ERASE_GROUP_START 35 93 #define MMC_CMD_ERASE_GROUP_END 36 94 #define MMC_CMD_ERASE 38 95 #define MMC_CMD_APP_CMD 55 96 #define MMC_CMD_SPI_READ_OCR 58 97 #define MMC_CMD_SPI_CRC_ON_OFF 59 98 #define MMC_CMD_RES_MAN 62 99 100 #define MMC_CMD62_ARG1 0xefac62ec 101 #define MMC_CMD62_ARG2 0xcbaea7 102 103 104 #define SD_CMD_SEND_RELATIVE_ADDR 3 105 #define SD_CMD_SWITCH_FUNC 6 106 #define SD_CMD_SEND_IF_COND 8 107 #define SD_CMD_SWITCH_UHS18V 11 108 109 #define SD_CMD_APP_SET_BUS_WIDTH 6 110 #define SD_CMD_ERASE_WR_BLK_START 32 111 #define SD_CMD_ERASE_WR_BLK_END 33 112 #define SD_CMD_APP_SEND_OP_COND 41 113 #define SD_CMD_APP_SEND_SCR 51 114 115 /* SCR definitions in different words */ 116 #define SD_HIGHSPEED_BUSY 0x00020000 117 #define SD_HIGHSPEED_SUPPORTED 0x00020000 118 119 #define OCR_BUSY 0x80000000 120 #define OCR_HCS 0x40000000 121 #define OCR_VOLTAGE_MASK 0x007FFF80 122 #define OCR_ACCESS_MODE 0x60000000 123 124 #define SECURE_ERASE 0x80000000 125 126 #define MMC_STATUS_MASK (~0x0206BF7F) 127 #define MMC_STATUS_SWITCH_ERROR (1 << 7) 128 #define MMC_STATUS_RDY_FOR_DATA (1 << 8) 129 #define MMC_STATUS_CURR_STATE (0xf << 9) 130 #define MMC_STATUS_ERROR (1 << 19) 131 132 #define MMC_STATE_PRG (7 << 9) 133 134 #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ 135 #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ 136 #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */ 137 #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */ 138 #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */ 139 #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */ 140 #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */ 141 #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */ 142 #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */ 143 #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */ 144 #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */ 145 #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */ 146 #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */ 147 #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */ 148 #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ 149 #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ 150 #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ 151 152 #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */ 153 #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte 154 addressed by index which are 155 1 in value field */ 156 #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte 157 addressed by index, which are 158 1 in value field */ 159 #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */ 160 161 #define SD_SWITCH_CHECK 0 162 #define SD_SWITCH_SWITCH 1 163 164 /* 165 * EXT_CSD fields 166 */ 167 #define EXT_CSD_ENH_START_ADDR 136 /* R/W */ 168 #define EXT_CSD_ENH_SIZE_MULT 140 /* R/W */ 169 #define EXT_CSD_GP_SIZE_MULT 143 /* R/W */ 170 #define EXT_CSD_PARTITION_SETTING 155 /* R/W */ 171 #define EXT_CSD_PARTITIONS_ATTRIBUTE 156 /* R/W */ 172 #define EXT_CSD_MAX_ENH_SIZE_MULT 157 /* R */ 173 #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */ 174 #define EXT_CSD_RST_N_FUNCTION 162 /* R/W */ 175 #define EXT_CSD_WR_REL_PARAM 166 /* R */ 176 #define EXT_CSD_WR_REL_SET 167 /* R/W */ 177 #define EXT_CSD_RPMB_MULT 168 /* RO */ 178 #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ 179 #define EXT_CSD_BOOT_BUS_WIDTH 177 180 #define EXT_CSD_PART_CONF 179 /* R/W */ 181 #define EXT_CSD_BUS_WIDTH 183 /* R/W */ 182 #define EXT_CSD_HS_TIMING 185 /* R/W */ 183 #define EXT_CSD_REV 192 /* RO */ 184 #define EXT_CSD_CARD_TYPE 196 /* RO */ 185 #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ 186 #define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */ 187 #define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ 188 #define EXT_CSD_BOOT_MULT 226 /* RO */ 189 190 /* 191 * EXT_CSD field definitions 192 */ 193 194 #define EXT_CSD_CMD_SET_NORMAL (1 << 0) 195 #define EXT_CSD_CMD_SET_SECURE (1 << 1) 196 #define EXT_CSD_CMD_SET_CPSECURE (1 << 2) 197 198 #define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */ 199 #define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */ 200 #define EXT_CSD_CARD_TYPE_DDR_1_8V (1 << 2) 201 #define EXT_CSD_CARD_TYPE_DDR_1_2V (1 << 3) 202 #define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \ 203 | EXT_CSD_CARD_TYPE_DDR_1_2V) 204 205 #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */ 206 #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ 207 #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ 208 #define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */ 209 #define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */ 210 211 #define EXT_CSD_BOOT_ACK_ENABLE (1 << 6) 212 #define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3) 213 #define EXT_CSD_PARTITION_ACCESS_ENABLE (1 << 0) 214 #define EXT_CSD_PARTITION_ACCESS_DISABLE (0 << 0) 215 216 #define EXT_CSD_BOOT_ACK(x) (x << 6) 217 #define EXT_CSD_BOOT_PART_NUM(x) (x << 3) 218 #define EXT_CSD_PARTITION_ACCESS(x) (x << 0) 219 220 #define EXT_CSD_BOOT_BUS_WIDTH_MODE(x) (x << 3) 221 #define EXT_CSD_BOOT_BUS_WIDTH_RESET(x) (x << 2) 222 #define EXT_CSD_BOOT_BUS_WIDTH_WIDTH(x) (x) 223 224 #define EXT_CSD_PARTITION_SETTING_COMPLETED (1 << 0) 225 226 #define EXT_CSD_ENH_USR (1 << 0) /* user data area is enhanced */ 227 #define EXT_CSD_ENH_GP(x) (1 << ((x)+1)) /* GP part (x+1) is enhanced */ 228 229 #define EXT_CSD_HS_CTRL_REL (1 << 0) /* host controlled WR_REL_SET */ 230 231 #define EXT_CSD_WR_DATA_REL_USR (1 << 0) /* user data area WR_REL */ 232 #define EXT_CSD_WR_DATA_REL_GP(x) (1 << ((x)+1)) /* GP part (x+1) WR_REL */ 233 234 #define R1_ILLEGAL_COMMAND (1 << 22) 235 #define R1_APP_CMD (1 << 5) 236 237 #define MMC_RSP_PRESENT (1 << 0) 238 #define MMC_RSP_136 (1 << 1) /* 136 bit response */ 239 #define MMC_RSP_CRC (1 << 2) /* expect valid crc */ 240 #define MMC_RSP_BUSY (1 << 3) /* card may send busy */ 241 #define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */ 242 243 #define MMC_RSP_NONE (0) 244 #define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) 245 #define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \ 246 MMC_RSP_BUSY) 247 #define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC) 248 #define MMC_RSP_R3 (MMC_RSP_PRESENT) 249 #define MMC_RSP_R4 (MMC_RSP_PRESENT) 250 #define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) 251 #define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) 252 #define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE) 253 254 #define MMCPART_NOAVAILABLE (0xff) 255 #define PART_ACCESS_MASK (0x7) 256 #define PART_SUPPORT (0x1) 257 #define ENHNCD_SUPPORT (0x2) 258 #define PART_ENH_ATTRIB (0x1f) 259 260 /* Maximum block size for MMC */ 261 #define MMC_MAX_BLOCK_LEN 512 262 263 /* The number of MMC physical partitions. These consist of: 264 * boot partitions (2), general purpose partitions (4) in MMC v4.4. 265 */ 266 #define MMC_NUM_BOOT_PARTITION 2 267 #define MMC_PART_RPMB 3 /* RPMB partition number */ 268 269 /* Driver model support */ 270 271 /** 272 * struct mmc_uclass_priv - Holds information about a device used by the uclass 273 */ 274 struct mmc_uclass_priv { 275 struct mmc *mmc; 276 }; 277 278 /** 279 * mmc_get_mmc_dev() - get the MMC struct pointer for a device 280 * 281 * Provided that the device is already probed and ready for use, this value 282 * will be available. 283 * 284 * @dev: Device 285 * @return associated mmc struct pointer if available, else NULL 286 */ 287 struct mmc *mmc_get_mmc_dev(struct udevice *dev); 288 289 /* End of driver model support */ 290 291 struct mmc_cid { 292 unsigned long psn; 293 unsigned short oid; 294 unsigned char mid; 295 unsigned char prv; 296 unsigned char mdt; 297 char pnm[7]; 298 }; 299 300 struct mmc_cmd { 301 ushort cmdidx; 302 uint resp_type; 303 uint cmdarg; 304 uint response[4]; 305 }; 306 307 struct mmc_data { 308 union { 309 char *dest; 310 const char *src; /* src buffers don't get written to */ 311 }; 312 uint flags; 313 uint blocks; 314 uint blocksize; 315 }; 316 317 /* forward decl. */ 318 struct mmc; 319 320 struct mmc_ops { 321 int (*send_cmd)(struct mmc *mmc, 322 struct mmc_cmd *cmd, struct mmc_data *data); 323 void (*set_ios)(struct mmc *mmc); 324 int (*init)(struct mmc *mmc); 325 int (*getcd)(struct mmc *mmc); 326 int (*getwp)(struct mmc *mmc); 327 }; 328 329 struct mmc_config { 330 const char *name; 331 const struct mmc_ops *ops; 332 uint host_caps; 333 uint voltages; 334 uint f_min; 335 uint f_max; 336 uint b_max; 337 unsigned char part_type; 338 }; 339 340 /* TODO struct mmc should be in mmc_private but it's hard to fix right now */ 341 struct mmc { 342 struct list_head link; 343 const struct mmc_config *cfg; /* provided configuration */ 344 uint version; 345 void *priv; 346 uint has_init; 347 int high_capacity; 348 uint bus_width; 349 uint clock; 350 uint card_caps; 351 uint ocr; 352 uint dsr; 353 uint dsr_imp; 354 uint scr[2]; 355 uint csd[4]; 356 uint cid[4]; 357 ushort rca; 358 u8 part_support; 359 u8 part_attr; 360 u8 wr_rel_set; 361 char part_config; 362 char part_num; 363 uint tran_speed; 364 uint read_bl_len; 365 uint write_bl_len; 366 uint erase_grp_size; /* in 512-byte sectors */ 367 uint hc_wp_grp_size; /* in 512-byte sectors */ 368 u64 capacity; 369 u64 capacity_user; 370 u64 capacity_boot; 371 u64 capacity_rpmb; 372 u64 capacity_gp[4]; 373 u64 enh_user_start; 374 u64 enh_user_size; 375 block_dev_desc_t block_dev; 376 char op_cond_pending; /* 1 if we are waiting on an op_cond command */ 377 char init_in_progress; /* 1 if we have done mmc_start_init() */ 378 char preinit; /* start init as early as possible */ 379 int ddr_mode; 380 }; 381 382 struct mmc_hwpart_conf { 383 struct { 384 uint enh_start; /* in 512-byte sectors */ 385 uint enh_size; /* in 512-byte sectors, if 0 no enh area */ 386 unsigned wr_rel_change : 1; 387 unsigned wr_rel_set : 1; 388 } user; 389 struct { 390 uint size; /* in 512-byte sectors */ 391 unsigned enhanced : 1; 392 unsigned wr_rel_change : 1; 393 unsigned wr_rel_set : 1; 394 } gp_part[4]; 395 }; 396 397 enum mmc_hwpart_conf_mode { 398 MMC_HWPART_CONF_CHECK, 399 MMC_HWPART_CONF_SET, 400 MMC_HWPART_CONF_COMPLETE, 401 }; 402 403 int mmc_register(struct mmc *mmc); 404 struct mmc *mmc_create(const struct mmc_config *cfg, void *priv); 405 void mmc_destroy(struct mmc *mmc); 406 int mmc_initialize(bd_t *bis); 407 int mmc_init(struct mmc *mmc); 408 int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size); 409 void mmc_set_clock(struct mmc *mmc, uint clock); 410 struct mmc *find_mmc_device(int dev_num); 411 int mmc_set_dev(int dev_num); 412 void print_mmc_devices(char separator); 413 int get_mmc_num(void); 414 int mmc_switch_part(int dev_num, unsigned int part_num); 415 int mmc_hwpart_config(struct mmc *mmc, const struct mmc_hwpart_conf *conf, 416 enum mmc_hwpart_conf_mode mode); 417 int mmc_getcd(struct mmc *mmc); 418 int board_mmc_getcd(struct mmc *mmc); 419 int mmc_getwp(struct mmc *mmc); 420 int board_mmc_getwp(struct mmc *mmc); 421 int mmc_set_dsr(struct mmc *mmc, u16 val); 422 /* Function to change the size of boot partition and rpmb partitions */ 423 int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, 424 unsigned long rpmbsize); 425 /* Function to modify the PARTITION_CONFIG field of EXT_CSD */ 426 int mmc_set_part_conf(struct mmc *mmc, u8 ack, u8 part_num, u8 access); 427 /* Function to modify the BOOT_BUS_WIDTH field of EXT_CSD */ 428 int mmc_set_boot_bus_width(struct mmc *mmc, u8 width, u8 reset, u8 mode); 429 /* Function to modify the RST_n_FUNCTION field of EXT_CSD */ 430 int mmc_set_rst_n_function(struct mmc *mmc, u8 enable); 431 /* Functions to read / write the RPMB partition */ 432 int mmc_rpmb_set_key(struct mmc *mmc, void *key); 433 int mmc_rpmb_get_counter(struct mmc *mmc, unsigned long *counter); 434 int mmc_rpmb_read(struct mmc *mmc, void *addr, unsigned short blk, 435 unsigned short cnt, unsigned char *key); 436 int mmc_rpmb_write(struct mmc *mmc, void *addr, unsigned short blk, 437 unsigned short cnt, unsigned char *key); 438 /** 439 * Start device initialization and return immediately; it does not block on 440 * polling OCR (operation condition register) status. Then you should call 441 * mmc_init, which would block on polling OCR status and complete the device 442 * initializatin. 443 * 444 * @param mmc Pointer to a MMC device struct 445 * @return 0 on success, IN_PROGRESS on waiting for OCR status, <0 on error. 446 */ 447 int mmc_start_init(struct mmc *mmc); 448 449 /** 450 * Set preinit flag of mmc device. 451 * 452 * This will cause the device to be pre-inited during mmc_initialize(), 453 * which may save boot time if the device is not accessed until later. 454 * Some eMMC devices take 200-300ms to init, but unfortunately they 455 * must be sent a series of commands to even get them to start preparing 456 * for operation. 457 * 458 * @param mmc Pointer to a MMC device struct 459 * @param preinit preinit flag value 460 */ 461 void mmc_set_preinit(struct mmc *mmc, int preinit); 462 463 #ifdef CONFIG_GENERIC_MMC 464 #ifdef CONFIG_MMC_SPI 465 #define mmc_host_is_spi(mmc) ((mmc)->cfg->host_caps & MMC_MODE_SPI) 466 #else 467 #define mmc_host_is_spi(mmc) 0 468 #endif 469 struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode); 470 #else 471 int mmc_legacy_init(int verbose); 472 #endif 473 474 void board_mmc_power_init(void); 475 int board_mmc_init(bd_t *bis); 476 int cpu_mmc_init(bd_t *bis); 477 int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr); 478 479 struct pci_device_id; 480 481 /** 482 * pci_mmc_init() - set up PCI MMC devices 483 * 484 * This finds all the matching PCI IDs and sets them up as MMC devices. 485 * 486 * @name: Name to use for devices 487 * @mmc_supported: PCI IDs to search for 488 * @num_ids: Number of elements in @mmc_supported 489 */ 490 int pci_mmc_init(const char *name, struct pci_device_id *mmc_supported, 491 int num_ids); 492 493 /* Set block count limit because of 16 bit register limit on some hardware*/ 494 #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT 495 #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535 496 #endif 497 498 #endif /* _MMC_H_ */ 499