1 /*- 2 * Copyright (c) 2006 M. Warner Losh. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * Portions of this software may have been developed with reference to 25 * the SD Simplified Specification. The following disclaimer may apply: 26 * 27 * The following conditions apply to the release of the simplified 28 * specification ("Simplified Specification") by the SD Card Association and 29 * the SD Group. The Simplified Specification is a subset of the complete SD 30 * Specification which is owned by the SD Card Association and the SD 31 * Group. This Simplified Specification is provided on a non-confidential 32 * basis subject to the disclaimers below. Any implementation of the 33 * Simplified Specification may require a license from the SD Card 34 * Association, SD Group, SD-3C LLC or other third parties. 35 * 36 * Disclaimers: 37 * 38 * The information contained in the Simplified Specification is presented only 39 * as a standard specification for SD Cards and SD Host/Ancillary products and 40 * is provided "AS-IS" without any representations or warranties of any 41 * kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD 42 * Card Association for any damages, any infringements of patents or other 43 * right of the SD Group, SD-3C LLC, the SD Card Association or any third 44 * parties, which may result from its use. No license is granted by 45 * implication, estoppel or otherwise under any patent or other rights of the 46 * SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing 47 * herein shall be construed as an obligation by the SD Group, the SD-3C LLC 48 * or the SD Card Association to disclose or distribute any technical 49 * information, know-how or other confidential information to any third party. 50 * 51 * $FreeBSD$ 52 */ 53 54 #ifndef DEV_MMC_MMCREG_H 55 #define DEV_MMC_MMCREG_H 56 57 /* 58 * This file contains the register definitions for the mmc and sd busses. 59 * They are taken from publicly available sources. 60 */ 61 62 struct mmc_data; 63 struct mmc_request; 64 65 struct mmc_command { 66 uint32_t opcode; 67 uint32_t arg; 68 uint32_t resp[4]; 69 uint32_t flags; /* Expected responses */ 70 #define MMC_RSP_PRESENT (1ul << 0) /* Response */ 71 #define MMC_RSP_136 (1ul << 1) /* 136 bit response */ 72 #define MMC_RSP_CRC (1ul << 2) /* Expect valid crc */ 73 #define MMC_RSP_BUSY (1ul << 3) /* Card may send busy */ 74 #define MMC_RSP_OPCODE (1ul << 4) /* Response include opcode */ 75 #define MMC_RSP_MASK 0x1ful 76 #define MMC_CMD_AC (0ul << 5) /* Addressed Command, no data */ 77 #define MMC_CMD_ADTC (1ul << 5) /* Addressed Data transfer cmd */ 78 #define MMC_CMD_BC (2ul << 5) /* Broadcast command, no response */ 79 #define MMC_CMD_BCR (3ul << 5) /* Broadcast command with response */ 80 #define MMC_CMD_MASK (3ul << 5) 81 82 /* Possible response types defined in the standard: */ 83 #define MMC_RSP_NONE (0) 84 #define MMC_RSP_R1 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE) 85 #define MMC_RSP_R1B (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE | MMC_RSP_BUSY) 86 #define MMC_RSP_R2 (MMC_RSP_PRESENT | MMC_RSP_136 | MMC_RSP_CRC) 87 #define MMC_RSP_R3 (MMC_RSP_PRESENT) 88 #define MMC_RSP_R6 (MMC_RSP_PRESENT | MMC_RSP_CRC) 89 #define MMC_RSP_R7 (MMC_RSP_PRESENT | MMC_RSP_CRC) 90 #define MMC_RSP(x) ((x) & MMC_RSP_MASK) 91 uint32_t retries; 92 uint32_t error; 93 #define MMC_ERR_NONE 0 94 #define MMC_ERR_TIMEOUT 1 95 #define MMC_ERR_BADCRC 2 96 #define MMC_ERR_FIFO 3 97 #define MMC_ERR_FAILED 4 98 #define MMC_ERR_INVALID 5 99 #define MMC_ERR_NO_MEMORY 6 100 #define MMC_ERR_MAX 6 101 struct mmc_data *data; /* Data segment with cmd */ 102 struct mmc_request *mrq; /* backpointer to request */ 103 }; 104 105 /* 106 * R1 responses 107 * 108 * Types (per SD 2.0 standard) 109 * e : error bit 110 * s : status bit 111 * r : detected and set for the actual command response 112 * x : Detected and set during command execution. The host can get 113 * the status by issuing a command with R1 response. 114 * 115 * Clear Condition (per SD 2.0 standard) 116 * a : according to the card current state. 117 * b : always related to the previous command. reception of a valid 118 * command will clear it (with a delay of one command). 119 * c : clear by read 120 */ 121 #define R1_OUT_OF_RANGE (1u << 31) /* erx, c */ 122 #define R1_ADDRESS_ERROR (1u << 30) /* erx, c */ 123 #define R1_BLOCK_LEN_ERROR (1u << 29) /* erx, c */ 124 #define R1_ERASE_SEQ_ERROR (1u << 28) /* er, c */ 125 #define R1_ERASE_PARAM (1u << 27) /* erx, c */ 126 #define R1_WP_VIOLATION (1u << 26) /* erx, c */ 127 #define R1_CARD_IS_LOCKED (1u << 25) /* sx, a */ 128 #define R1_LOCK_UNLOCK_FAILED (1u << 24) /* erx, c */ 129 #define R1_COM_CRC_ERROR (1u << 23) /* er, b */ 130 #define R1_ILLEGAL_COMMAND (1u << 22) /* er, b */ 131 #define R1_CARD_ECC_FAILED (1u << 21) /* erx, c */ 132 #define R1_CC_ERROR (1u << 20) /* erx, c */ 133 #define R1_ERROR (1u << 19) /* erx, c */ 134 #define R1_CSD_OVERWRITE (1u << 16) /* erx, c */ 135 #define R1_WP_ERASE_SKIP (1u << 15) /* erx, c */ 136 #define R1_CARD_ECC_DISABLED (1u << 14) /* sx, a */ 137 #define R1_ERASE_RESET (1u << 13) /* sr, c */ 138 #define R1_CURRENT_STATE_MASK (0xfu << 9) /* sx, b */ 139 #define R1_READY_FOR_DATA (1u << 8) /* sx, a */ 140 #define R1_APP_CMD (1u << 5) /* sr, c */ 141 #define R1_AKE_SEQ_ERROR (1u << 3) /* er, c */ 142 #define R1_STATUS(x) ((x) & 0xFFFFE000) 143 #define R1_CURRENT_STATE(x) (((x) & R1_CURRENT_STATE_MASK) >> 9) 144 #define R1_STATE_IDLE 0 145 #define R1_STATE_READY 1 146 #define R1_STATE_IDENT 2 147 #define R1_STATE_STBY 3 148 #define R1_STATE_TRAN 4 149 #define R1_STATE_DATA 5 150 #define R1_STATE_RCV 6 151 #define R1_STATE_PRG 7 152 #define R1_STATE_DIS 8 153 154 struct mmc_data { 155 size_t len; /* size of the data */ 156 size_t xfer_len; 157 void *data; /* data buffer */ 158 uint32_t flags; 159 #define MMC_DATA_WRITE (1UL << 0) 160 #define MMC_DATA_READ (1UL << 1) 161 #define MMC_DATA_STREAM (1UL << 2) 162 #define MMC_DATA_MULTI (1UL << 3) 163 struct mmc_request *mrq; 164 }; 165 166 struct mmc_request { 167 struct mmc_command *cmd; 168 struct mmc_command *stop; 169 void (*done)(struct mmc_request *); /* Completion function */ 170 void *done_data; /* requestor set data */ 171 uint32_t flags; 172 #define MMC_REQ_DONE 1 173 }; 174 175 /* Command definitions */ 176 177 /* Class 0 and 1: Basic commands & read stream commands */ 178 #define MMC_GO_IDLE_STATE 0 179 #define MMC_SEND_OP_COND 1 180 #define MMC_ALL_SEND_CID 2 181 #define MMC_SET_RELATIVE_ADDR 3 182 #define SD_SEND_RELATIVE_ADDR 3 183 #define MMC_SET_DSR 4 184 /* reserved: 5 */ 185 #define MMC_SWITCH_FUNC 6 186 #define MMC_SWITCH_FUNC_CMDS 0 187 #define MMC_SWITCH_FUNC_SET 1 188 #define MMC_SWITCH_FUNC_CLR 2 189 #define MMC_SWITCH_FUNC_WR 3 190 #define MMC_SELECT_CARD 7 191 #define MMC_DESELECT_CARD 7 192 #define MMC_SEND_EXT_CSD 8 193 #define SD_SEND_IF_COND 8 194 #define MMC_SEND_CSD 9 195 #define MMC_SEND_CID 10 196 #define MMC_READ_DAT_UNTIL_STOP 11 197 #define MMC_STOP_TRANSMISSION 12 198 #define MMC_SEND_STATUS 13 199 #define MMC_BUSTEST_R 14 200 #define MMC_GO_INACTIVE_STATE 15 201 #define MMC_BUSTEST_W 19 202 203 /* Class 2: Block oriented read commands */ 204 #define MMC_SET_BLOCKLEN 16 205 #define MMC_READ_SINGLE_BLOCK 17 206 #define MMC_READ_MULTIPLE_BLOCK 18 207 /* reserved: 19 */ 208 209 /* Class 3: Stream write commands */ 210 #define MMC_WRITE_DAT_UNTIL_STOP 20 211 /* reserved: 21 */ 212 /* reserved: 22 */ 213 214 /* Class 4: Block oriented write commands */ 215 #define MMC_SET_BLOCK_COUNT 23 216 #define MMC_WRITE_BLOCK 24 217 #define MMC_WRITE_MULTIPLE_BLOCK 25 218 #define MMC_PROGARM_CID 26 219 #define MMC_PROGRAM_CSD 27 220 221 /* Class 6: Block oriented write protection commands */ 222 #define MMC_SET_WRITE_PROT 28 223 #define MMC_CLR_WRITE_PROT 29 224 #define MMC_SEND_WRITE_PROT 30 225 /* reserved: 31 */ 226 227 /* Class 5: Erase commands */ 228 #define SD_ERASE_WR_BLK_START 32 229 #define SD_ERASE_WR_BLK_END 33 230 /* 34 -- reserved old command */ 231 #define MMC_ERASE_GROUP_START 35 232 #define MMC_ERASE_GROUP_END 36 233 /* 37 -- reserved old command */ 234 #define MMC_ERASE 38 235 236 /* Class 9: I/O mode commands */ 237 #define MMC_FAST_IO 39 238 #define MMC_GO_IRQ_STATE 40 239 /* reserved: 41 */ 240 241 /* Class 7: Lock card */ 242 #define MMC_LOCK_UNLOCK 42 243 /* reserved: 43 */ 244 /* reserved: 44 */ 245 /* reserved: 45 */ 246 /* reserved: 46 */ 247 /* reserved: 47 */ 248 /* reserved: 48 */ 249 /* reserved: 49 */ 250 /* reserved: 50 */ 251 /* reserved: 51 */ 252 /* reserved: 54 */ 253 254 /* Class 8: Application specific commands */ 255 #define MMC_APP_CMD 55 256 #define MMC_GEN_CMD 56 257 /* reserved: 57 */ 258 /* reserved: 58 */ 259 /* reserved: 59 */ 260 /* reserved for mfg: 60 */ 261 /* reserved for mfg: 61 */ 262 /* reserved for mfg: 62 */ 263 /* reserved for mfg: 63 */ 264 265 /* Class 9: I/O cards (sd) */ 266 #define SD_IO_RW_DIRECT 52 267 #define SD_IO_RW_EXTENDED 53 268 269 /* Class 10: Switch function commands */ 270 #define SD_SWITCH_FUNC 6 271 /* reserved: 34 */ 272 /* reserved: 35 */ 273 /* reserved: 36 */ 274 /* reserved: 37 */ 275 /* reserved: 50 */ 276 /* reserved: 57 */ 277 278 279 /* Application specific commands for SD */ 280 #define ACMD_SET_BUS_WIDTH 6 281 #define ACMD_SD_STATUS 13 282 #define ACMD_SEND_NUM_WR_BLOCKS 22 283 #define ACMD_SET_WR_BLK_ERASE_COUNT 23 284 #define ACMD_SD_SEND_OP_COND 41 285 #define ACMD_SET_CLR_CARD_DETECT 42 286 #define ACMD_SEND_SCR 51 287 288 /* 289 * EXT_CSD fields 290 */ 291 #define EXT_CSD_ERASE_GRP_DEF 175 /* R/W */ 292 #define EXT_CSD_BUS_WIDTH 183 /* R/W */ 293 #define EXT_CSD_HS_TIMING 185 /* R/W */ 294 #define EXT_CSD_CARD_TYPE 196 /* RO */ 295 #define EXT_CSD_REV 192 /* RO */ 296 #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ 297 #define EXT_CSD_ERASE_TO_MULT 223 /* RO */ 298 #define EXT_CSD_ERASE_GRP_SIZE 224 /* RO */ 299 300 /* 301 * EXT_CSD field definitions 302 */ 303 #define EXT_CSD_CMD_SET_NORMAL 1 304 #define EXT_CSD_CMD_SET_SECURE 2 305 #define EXT_CSD_CMD_SET_CPSECURE 4 306 307 #define EXT_CSD_CARD_TYPE_26 1 308 #define EXT_CSD_CARD_TYPE_52 2 309 310 #define EXT_CSD_BUS_WIDTH_1 0 311 #define EXT_CSD_BUS_WIDTH_4 1 312 #define EXT_CSD_BUS_WIDTH_8 2 313 314 #define MMC_TYPE_26_MAX_HS 26000000 315 #define MMC_TYPE_52_MAX_HS 52000000 316 317 /* 318 * SD bus widths 319 */ 320 #define SD_BUS_WIDTH_1 0 321 #define SD_BUS_WIDTH_4 2 322 323 /* 324 * SD Switch 325 */ 326 #define SD_SWITCH_MODE_CHECK 0 327 #define SD_SWITCH_MODE_SET 1 328 #define SD_SWITCH_GROUP1 0 329 #define SD_SWITCH_NORMAL_MODE 0 330 #define SD_SWITCH_HS_MODE 1 331 #define SD_SWITCH_NOCHANGE 0xF 332 333 #define SD_CLR_CARD_DETECT 0 334 #define SD_SET_CARD_DETECT 1 335 336 #define SD_MAX_HS 50000000 337 338 /* OCR bits */ 339 340 /* 341 * in SD 2.0 spec, bits 8-14 are now marked reserved 342 * Low voltage in SD2.0 spec is bit 7, TBD voltage 343 * Low voltage in MC 3.31 spec is bit 7, 1.65-1.95V 344 * Specs prior to MMC 3.31 defined bits 0-7 as voltages down to 1.5V. 345 * 3.31 redefined them to be reserved and also said that cards had to 346 * support the 2.7-3.6V and fixed the OCR to be 0xfff8000 for high voltage 347 * cards. MMC 4.0 says that a dual voltage card responds with 0xfff8080. 348 * Looks like the fine-grained control of the voltage tolerance ranges 349 * was abandoned. 350 * 351 * The MMC_OCR_CCS appears to be valid for only SD cards. 352 */ 353 #define MMC_OCR_VOLTAGE 0x3fffffffU /* Vdd Voltage mask */ 354 #define MMC_OCR_LOW_VOLTAGE (1u << 7) /* Low Voltage Range -- tbd */ 355 #define MMC_OCR_200_210 (1U << 8) /* Vdd voltage 2.00 ~ 2.10 */ 356 #define MMC_OCR_MIN_VOLTAGE_SHIFT 8 357 #define MMC_OCR_210_220 (1U << 9) /* Vdd voltage 2.10 ~ 2.20 */ 358 #define MMC_OCR_220_230 (1U << 10) /* Vdd voltage 2.20 ~ 2.30 */ 359 #define MMC_OCR_230_240 (1U << 11) /* Vdd voltage 2.30 ~ 2.40 */ 360 #define MMC_OCR_240_250 (1U << 12) /* Vdd voltage 2.40 ~ 2.50 */ 361 #define MMC_OCR_250_260 (1U << 13) /* Vdd voltage 2.50 ~ 2.60 */ 362 #define MMC_OCR_260_270 (1U << 14) /* Vdd voltage 2.60 ~ 2.70 */ 363 #define MMC_OCR_270_280 (1U << 15) /* Vdd voltage 2.70 ~ 2.80 */ 364 #define MMC_OCR_280_290 (1U << 16) /* Vdd voltage 2.80 ~ 2.90 */ 365 #define MMC_OCR_290_300 (1U << 17) /* Vdd voltage 2.90 ~ 3.00 */ 366 #define MMC_OCR_300_310 (1U << 18) /* Vdd voltage 3.00 ~ 3.10 */ 367 #define MMC_OCR_310_320 (1U << 19) /* Vdd voltage 3.10 ~ 3.20 */ 368 #define MMC_OCR_320_330 (1U << 20) /* Vdd voltage 3.20 ~ 3.30 */ 369 #define MMC_OCR_330_340 (1U << 21) /* Vdd voltage 3.30 ~ 3.40 */ 370 #define MMC_OCR_340_350 (1U << 22) /* Vdd voltage 3.40 ~ 3.50 */ 371 #define MMC_OCR_350_360 (1U << 23) /* Vdd voltage 3.50 ~ 3.60 */ 372 #define MMC_OCR_MAX_VOLTAGE_SHIFT 23 373 #define MMC_OCR_CCS (1u << 30) /* Card Capacity status (SD vs SDHC) */ 374 #define MMC_OCR_CARD_BUSY (1U << 31) /* Card Power up status */ 375 376 /* CSD -- decoded structure */ 377 struct mmc_cid { 378 uint32_t mid; 379 char pnm[8]; 380 uint32_t psn; 381 uint16_t oid; 382 uint16_t mdt_year; 383 uint8_t mdt_month; 384 uint8_t prv; 385 uint8_t fwrev; 386 }; 387 388 struct mmc_csd 389 { 390 uint8_t csd_structure; 391 uint8_t spec_vers; 392 uint16_t ccc; 393 uint16_t tacc; 394 uint32_t nsac; 395 uint32_t r2w_factor; 396 uint32_t tran_speed; 397 uint32_t read_bl_len; 398 uint32_t write_bl_len; 399 uint32_t vdd_r_curr_min; 400 uint32_t vdd_r_curr_max; 401 uint32_t vdd_w_curr_min; 402 uint32_t vdd_w_curr_max; 403 uint32_t wp_grp_size; 404 uint32_t erase_sector; 405 uint64_t capacity; 406 unsigned int read_bl_partial:1, 407 read_blk_misalign:1, 408 write_bl_partial:1, 409 write_blk_misalign:1, 410 dsr_imp:1, 411 erase_blk_en:1, 412 wp_grp_enable:1; 413 }; 414 415 struct mmc_scr 416 { 417 unsigned char sda_vsn; 418 unsigned char bus_widths; 419 #define SD_SCR_BUS_WIDTH_1 (1<<0) 420 #define SD_SCR_BUS_WIDTH_4 (1<<2) 421 }; 422 423 struct mmc_sd_status 424 { 425 uint8_t bus_width; 426 uint8_t secured_mode; 427 uint16_t card_type; 428 uint16_t prot_area; 429 uint8_t speed_class; 430 uint8_t perf_move; 431 uint8_t au_size; 432 uint16_t erase_size; 433 uint8_t erase_timeout; 434 uint8_t erase_offset; 435 }; 436 437 /* 438 * Older versions of the MMC standard had a variable sector size. However, 439 * I've been able to find no old MMC or SD cards that have a non 512 440 * byte sector size anywhere, so we assume that such cards are very rare 441 * and only note their existance in passing here... 442 */ 443 #define MMC_SECTOR_SIZE 512 444 445 #endif /* DEV_MMCREG_H */ 446