mmcreg.h revision 318198
1/*- 2 * Copyright (c) 2006 M. Warner Losh. All rights reserved. 3 * Copyright (c) 2017 Marius Strobl <marius@FreeBSD.org> 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * Portions of this software may have been developed with reference to 26 * the SD Simplified Specification. The following disclaimer may apply: 27 * 28 * The following conditions apply to the release of the simplified 29 * specification ("Simplified Specification") by the SD Card Association and 30 * the SD Group. The Simplified Specification is a subset of the complete SD 31 * Specification which is owned by the SD Card Association and the SD 32 * Group. This Simplified Specification is provided on a non-confidential 33 * basis subject to the disclaimers below. Any implementation of the 34 * Simplified Specification may require a license from the SD Card 35 * Association, SD Group, SD-3C LLC or other third parties. 36 * 37 * Disclaimers: 38 * 39 * The information contained in the Simplified Specification is presented only 40 * as a standard specification for SD Cards and SD Host/Ancillary products and 41 * is provided "AS-IS" without any representations or warranties of any 42 * kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD 43 * Card Association for any damages, any infringements of patents or other 44 * right of the SD Group, SD-3C LLC, the SD Card Association or any third 45 * parties, which may result from its use. No license is granted by 46 * implication, estoppel or otherwise under any patent or other rights of the 47 * SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing 48 * herein shall be construed as an obligation by the SD Group, the SD-3C LLC 49 * or the SD Card Association to disclose or distribute any technical 50 * information, know-how or other confidential information to any third party. 51 * 52 * $FreeBSD: stable/10/sys/dev/mmc/mmcreg.h 318198 2017-05-11 21:01:02Z marius $ 53 */ 54 55#ifndef DEV_MMC_MMCREG_H 56#define DEV_MMC_MMCREG_H 57 58/* 59 * This file contains the register definitions for the mmc and sd busses. 60 * They are taken from publicly available sources. 61 */ 62 63struct mmc_data; 64struct mmc_request; 65 66struct mmc_command { 67 uint32_t opcode; 68 uint32_t arg; 69 uint32_t resp[4]; 70 uint32_t flags; /* Expected responses */ 71#define MMC_RSP_PRESENT (1ul << 0) /* Response */ 72#define MMC_RSP_136 (1ul << 1) /* 136 bit response */ 73#define MMC_RSP_CRC (1ul << 2) /* Expect valid crc */ 74#define MMC_RSP_BUSY (1ul << 3) /* Card may send busy */ 75#define MMC_RSP_OPCODE (1ul << 4) /* Response include opcode */ 76#define MMC_RSP_MASK 0x1ful 77#define MMC_CMD_AC (0ul << 5) /* Addressed Command, no data */ 78#define MMC_CMD_ADTC (1ul << 5) /* Addressed Data transfer cmd */ 79#define MMC_CMD_BC (2ul << 5) /* Broadcast command, no response */ 80#define MMC_CMD_BCR (3ul << 5) /* Broadcast command with response */ 81#define MMC_CMD_MASK (3ul << 5) 82 83/* Possible response types defined in the standard: */ 84#define MMC_RSP_NONE (0) 85#define MMC_RSP_R1 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE) 86#define MMC_RSP_R1B (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE | MMC_RSP_BUSY) 87#define MMC_RSP_R2 (MMC_RSP_PRESENT | MMC_RSP_136 | MMC_RSP_CRC) 88#define MMC_RSP_R3 (MMC_RSP_PRESENT) 89#define MMC_RSP_R4 (MMC_RSP_PRESENT) 90#define MMC_RSP_R5 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE) 91#define MMC_RSP_R5B (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE | MMC_RSP_BUSY) 92#define MMC_RSP_R6 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE) 93#define MMC_RSP_R7 (MMC_RSP_PRESENT | MMC_RSP_CRC | MMC_RSP_OPCODE) 94#define MMC_RSP(x) ((x) & MMC_RSP_MASK) 95 uint32_t retries; 96 uint32_t error; 97#define MMC_ERR_NONE 0 98#define MMC_ERR_TIMEOUT 1 99#define MMC_ERR_BADCRC 2 100#define MMC_ERR_FIFO 3 101#define MMC_ERR_FAILED 4 102#define MMC_ERR_INVALID 5 103#define MMC_ERR_NO_MEMORY 6 104#define MMC_ERR_MAX 6 105 struct mmc_data *data; /* Data segment with cmd */ 106 struct mmc_request *mrq; /* backpointer to request */ 107}; 108 109/* 110 * R1 responses 111 * 112 * Types (per SD 2.0 standard) 113 * e : error bit 114 * s : status bit 115 * r : detected and set for the actual command response 116 * x : Detected and set during command execution. The host can get 117 * the status by issuing a command with R1 response. 118 * 119 * Clear Condition (per SD 2.0 standard) 120 * a : according to the card current state. 121 * b : always related to the previous command. reception of a valid 122 * command will clear it (with a delay of one command). 123 * c : clear by read 124 */ 125#define R1_OUT_OF_RANGE (1u << 31) /* erx, c */ 126#define R1_ADDRESS_ERROR (1u << 30) /* erx, c */ 127#define R1_BLOCK_LEN_ERROR (1u << 29) /* erx, c */ 128#define R1_ERASE_SEQ_ERROR (1u << 28) /* er, c */ 129#define R1_ERASE_PARAM (1u << 27) /* erx, c */ 130#define R1_WP_VIOLATION (1u << 26) /* erx, c */ 131#define R1_CARD_IS_LOCKED (1u << 25) /* sx, a */ 132#define R1_LOCK_UNLOCK_FAILED (1u << 24) /* erx, c */ 133#define R1_COM_CRC_ERROR (1u << 23) /* er, b */ 134#define R1_ILLEGAL_COMMAND (1u << 22) /* er, b */ 135#define R1_CARD_ECC_FAILED (1u << 21) /* erx, c */ 136#define R1_CC_ERROR (1u << 20) /* erx, c */ 137#define R1_ERROR (1u << 19) /* erx, c */ 138#define R1_CSD_OVERWRITE (1u << 16) /* erx, c */ 139#define R1_WP_ERASE_SKIP (1u << 15) /* erx, c */ 140#define R1_CARD_ECC_DISABLED (1u << 14) /* sx, a */ 141#define R1_ERASE_RESET (1u << 13) /* sr, c */ 142#define R1_CURRENT_STATE_MASK (0xfu << 9) /* sx, b */ 143#define R1_READY_FOR_DATA (1u << 8) /* sx, a */ 144#define R1_SWITCH_ERROR (1u << 7) /* sx, c */ 145#define R1_APP_CMD (1u << 5) /* sr, c */ 146#define R1_AKE_SEQ_ERROR (1u << 3) /* er, c */ 147#define R1_STATUS(x) ((x) & 0xFFFFE000) 148#define R1_CURRENT_STATE(x) (((x) & R1_CURRENT_STATE_MASK) >> 9) 149#define R1_STATE_IDLE 0 150#define R1_STATE_READY 1 151#define R1_STATE_IDENT 2 152#define R1_STATE_STBY 3 153#define R1_STATE_TRAN 4 154#define R1_STATE_DATA 5 155#define R1_STATE_RCV 6 156#define R1_STATE_PRG 7 157#define R1_STATE_DIS 8 158 159struct mmc_data { 160 size_t len; /* size of the data */ 161 size_t xfer_len; 162 void *data; /* data buffer */ 163 uint32_t flags; 164#define MMC_DATA_WRITE (1UL << 0) 165#define MMC_DATA_READ (1UL << 1) 166#define MMC_DATA_STREAM (1UL << 2) 167#define MMC_DATA_MULTI (1UL << 3) 168 struct mmc_request *mrq; 169}; 170 171struct mmc_request { 172 struct mmc_command *cmd; 173 struct mmc_command *stop; 174 void (*done)(struct mmc_request *); /* Completion function */ 175 void *done_data; /* requestor set data */ 176 uint32_t flags; 177#define MMC_REQ_DONE 1 178}; 179 180/* Command definitions */ 181 182/* Class 0 and 1: Basic commands & read stream commands */ 183#define MMC_GO_IDLE_STATE 0 184#define MMC_SEND_OP_COND 1 185#define MMC_ALL_SEND_CID 2 186#define MMC_SET_RELATIVE_ADDR 3 187#define SD_SEND_RELATIVE_ADDR 3 188#define MMC_SET_DSR 4 189#define MMC_SLEEP_AWAKE 5 190#define MMC_SWITCH_FUNC 6 191#define MMC_SWITCH_FUNC_CMDS 0 192#define MMC_SWITCH_FUNC_SET 1 193#define MMC_SWITCH_FUNC_CLR 2 194#define MMC_SWITCH_FUNC_WR 3 195#define MMC_SELECT_CARD 7 196#define MMC_DESELECT_CARD 7 197#define MMC_SEND_EXT_CSD 8 198#define SD_SEND_IF_COND 8 199#define MMC_SEND_CSD 9 200#define MMC_SEND_CID 10 201#define MMC_READ_DAT_UNTIL_STOP 11 202#define MMC_STOP_TRANSMISSION 12 203#define MMC_SEND_STATUS 13 204#define MMC_BUSTEST_R 14 205#define MMC_GO_INACTIVE_STATE 15 206#define MMC_BUSTEST_W 19 207 208/* Class 2: Block oriented read commands */ 209#define MMC_SET_BLOCKLEN 16 210#define MMC_READ_SINGLE_BLOCK 17 211#define MMC_READ_MULTIPLE_BLOCK 18 212 /* reserved: 19 */ 213 214/* Class 3: Stream write commands */ 215#define MMC_WRITE_DAT_UNTIL_STOP 20 216 /* reserved: 21 */ 217 /* reserved: 22 */ 218 219/* Class 4: Block oriented write commands */ 220#define MMC_SET_BLOCK_COUNT 23 221#define MMC_WRITE_BLOCK 24 222#define MMC_WRITE_MULTIPLE_BLOCK 25 223#define MMC_PROGARM_CID 26 224#define MMC_PROGRAM_CSD 27 225 226/* Class 6: Block oriented write protection commands */ 227#define MMC_SET_WRITE_PROT 28 228#define MMC_CLR_WRITE_PROT 29 229#define MMC_SEND_WRITE_PROT 30 230 /* reserved: 31 */ 231 232/* Class 5: Erase commands */ 233#define SD_ERASE_WR_BLK_START 32 234#define SD_ERASE_WR_BLK_END 33 235 /* 34 -- reserved old command */ 236#define MMC_ERASE_GROUP_START 35 237#define MMC_ERASE_GROUP_END 36 238 /* 37 -- reserved old command */ 239#define MMC_ERASE 38 240 241/* Class 9: I/O mode commands */ 242#define MMC_FAST_IO 39 243#define MMC_GO_IRQ_STATE 40 244 /* reserved: 41 */ 245 246/* Class 7: Lock card */ 247#define MMC_LOCK_UNLOCK 42 248 /* reserved: 43 */ 249 /* reserved: 44 */ 250 /* reserved: 45 */ 251 /* reserved: 46 */ 252 /* reserved: 47 */ 253 /* reserved: 48 */ 254 /* reserved: 49 */ 255 /* reserved: 50 */ 256 /* reserved: 51 */ 257 /* reserved: 54 */ 258 259/* Class 8: Application specific commands */ 260#define MMC_APP_CMD 55 261#define MMC_GEN_CMD 56 262 /* reserved: 57 */ 263 /* reserved: 58 */ 264 /* reserved: 59 */ 265 /* reserved for mfg: 60 */ 266 /* reserved for mfg: 61 */ 267 /* reserved for mfg: 62 */ 268 /* reserved for mfg: 63 */ 269 270/* Class 9: I/O cards (sd) */ 271#define SD_IO_RW_DIRECT 52 272#define SD_IO_RW_EXTENDED 53 273 274/* Class 10: Switch function commands */ 275#define SD_SWITCH_FUNC 6 276 /* reserved: 34 */ 277 /* reserved: 35 */ 278 /* reserved: 36 */ 279 /* reserved: 37 */ 280 /* reserved: 50 */ 281 /* reserved: 57 */ 282 283/* Application specific commands for SD */ 284#define ACMD_SET_BUS_WIDTH 6 285#define ACMD_SD_STATUS 13 286#define ACMD_SEND_NUM_WR_BLOCKS 22 287#define ACMD_SET_WR_BLK_ERASE_COUNT 23 288#define ACMD_SD_SEND_OP_COND 41 289#define ACMD_SET_CLR_CARD_DETECT 42 290#define ACMD_SEND_SCR 51 291 292/* 293 * EXT_CSD fields 294 */ 295#define EXT_CSD_EXT_PART_ATTR 52 /* R/W, 2 bytes */ 296#define EXT_CSD_ENH_START_ADDR 136 /* R/W, 4 bytes */ 297#define EXT_CSD_ENH_SIZE_MULT 140 /* R/W, 3 bytes */ 298#define EXT_CSD_GP_SIZE_MULT 143 /* R/W, 12 bytes */ 299#define EXT_CSD_PART_SET 155 /* R/W */ 300#define EXT_CSD_PART_ATTR 156 /* R/W */ 301#define EXT_CSD_PART_SUPPORT 160 /* RO */ 302#define EXT_CSD_RPMB_MULT 168 /* RO */ 303#define EXT_CSD_BOOT_WP_STATUS 174 /* RO */ 304#define EXT_CSD_ERASE_GRP_DEF 175 /* R/W */ 305#define EXT_CSD_PART_CONFIG 179 /* R/W */ 306#define EXT_CSD_BUS_WIDTH 183 /* R/W */ 307#define EXT_CSD_HS_TIMING 185 /* R/W */ 308#define EXT_CSD_CARD_TYPE 196 /* RO */ 309#define EXT_CSD_REV 192 /* RO */ 310#define EXT_CSD_PART_SWITCH_TO 199 /* RO */ 311#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ 312#define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */ 313#define EXT_CSD_ERASE_TO_MULT 223 /* RO */ 314#define EXT_CSD_ERASE_GRP_SIZE 224 /* RO */ 315#define EXT_CSD_BOOT_SIZE_MULT 226 /* RO */ 316#define EXT_CSD_GEN_CMD6_TIME 248 /* RO */ 317 318/* 319 * EXT_CSD field definitions 320 */ 321#define EXT_CSD_EXT_PART_ATTR_DEFAULT 0x0 322#define EXT_CSD_EXT_PART_ATTR_SYSTEMCODE 0x1 323#define EXT_CSD_EXT_PART_ATTR_NPERSISTENT 0x2 324 325#define EXT_CSD_PART_SET_COMPLETED 0x01 326 327#define EXT_CSD_PART_ATTR_ENH_USR 0x01 328#define EXT_CSD_PART_ATTR_ENH_GP0 0x02 329#define EXT_CSD_PART_ATTR_ENH_GP1 0x04 330#define EXT_CSD_PART_ATTR_ENH_GP2 0x08 331#define EXT_CSD_PART_ATTR_ENH_GP3 0x10 332#define EXT_CSD_PART_ATTR_ENH_MASK 0x1f 333 334#define EXT_CSD_PART_SUPPORT_EN 0x01 335#define EXT_CSD_PART_SUPPORT_ENH_ATTR_EN 0x02 336#define EXT_CSD_PART_SUPPORT_EXT_ATTR_EN 0x04 337 338#define EXT_CSD_BOOT_WP_STATUS_BOOT0_PWR 0x01 339#define EXT_CSD_BOOT_WP_STATUS_BOOT0_PERM 0x02 340#define EXT_CSD_BOOT_WP_STATUS_BOOT0_MASK 0x03 341#define EXT_CSD_BOOT_WP_STATUS_BOOT1_PWR 0x04 342#define EXT_CSD_BOOT_WP_STATUS_BOOT1_PERM 0x08 343#define EXT_CSD_BOOT_WP_STATUS_BOOT1_MASK 0x0c 344 345#define EXT_CSD_ERASE_GRP_DEF_EN 0x01 346 347#define EXT_CSD_PART_CONFIG_ACC_DEFAULT 0x00 348#define EXT_CSD_PART_CONFIG_ACC_BOOT0 0x01 349#define EXT_CSD_PART_CONFIG_ACC_BOOT1 0x02 350#define EXT_CSD_PART_CONFIG_ACC_RPMB 0x03 351#define EXT_CSD_PART_CONFIG_ACC_GP0 0x04 352#define EXT_CSD_PART_CONFIG_ACC_GP1 0x05 353#define EXT_CSD_PART_CONFIG_ACC_GP2 0x06 354#define EXT_CSD_PART_CONFIG_ACC_GP3 0x07 355#define EXT_CSD_PART_CONFIG_ACC_MASK 0x07 356#define EXT_CSD_PART_CONFIG_BOOT0 0x08 357#define EXT_CSD_PART_CONFIG_BOOT1 0x10 358#define EXT_CSD_PART_CONFIG_BOOT_USR 0x38 359#define EXT_CSD_PART_CONFIG_BOOT_MASK 0x38 360#define EXT_CSD_PART_CONFIG_BOOT_ACK 0x40 361 362#define EXT_CSD_CMD_SET_NORMAL 1 363#define EXT_CSD_CMD_SET_SECURE 2 364#define EXT_CSD_CMD_SET_CPSECURE 4 365 366#define EXT_CSD_CARD_TYPE_26 1 367#define EXT_CSD_CARD_TYPE_52 2 368 369#define EXT_CSD_BUS_WIDTH_1 0 370#define EXT_CSD_BUS_WIDTH_4 1 371#define EXT_CSD_BUS_WIDTH_8 2 372 373#define MMC_TYPE_26_MAX_HS 26000000 374#define MMC_TYPE_52_MAX_HS 52000000 375 376/* 377 * SD bus widths 378 */ 379#define SD_BUS_WIDTH_1 0 380#define SD_BUS_WIDTH_4 2 381 382/* 383 * SD Switch 384 */ 385#define SD_SWITCH_MODE_CHECK 0 386#define SD_SWITCH_MODE_SET 1 387#define SD_SWITCH_GROUP1 0 388#define SD_SWITCH_NORMAL_MODE 0 389#define SD_SWITCH_HS_MODE 1 390#define SD_SWITCH_NOCHANGE 0xF 391 392#define SD_CLR_CARD_DETECT 0 393#define SD_SET_CARD_DETECT 1 394 395#define SD_MAX_HS 50000000 396 397/* OCR bits */ 398 399/* 400 * in SD 2.0 spec, bits 8-14 are now marked reserved 401 * Low voltage in SD2.0 spec is bit 7, TBD voltage 402 * Low voltage in MC 3.31 spec is bit 7, 1.65-1.95V 403 * Specs prior to MMC 3.31 defined bits 0-7 as voltages down to 1.5V. 404 * 3.31 redefined them to be reserved and also said that cards had to 405 * support the 2.7-3.6V and fixed the OCR to be 0xfff8000 for high voltage 406 * cards. MMC 4.0 says that a dual voltage card responds with 0xfff8080. 407 * Looks like the fine-grained control of the voltage tolerance ranges 408 * was abandoned. 409 * 410 * The MMC_OCR_CCS appears to be valid for only SD cards. 411 */ 412#define MMC_OCR_VOLTAGE 0x3fffffffU /* Vdd Voltage mask */ 413#define MMC_OCR_LOW_VOLTAGE (1u << 7) /* Low Voltage Range -- tbd */ 414#define MMC_OCR_MIN_VOLTAGE_SHIFT 7 415#define MMC_OCR_200_210 (1U << 8) /* Vdd voltage 2.00 ~ 2.10 */ 416#define MMC_OCR_210_220 (1U << 9) /* Vdd voltage 2.10 ~ 2.20 */ 417#define MMC_OCR_220_230 (1U << 10) /* Vdd voltage 2.20 ~ 2.30 */ 418#define MMC_OCR_230_240 (1U << 11) /* Vdd voltage 2.30 ~ 2.40 */ 419#define MMC_OCR_240_250 (1U << 12) /* Vdd voltage 2.40 ~ 2.50 */ 420#define MMC_OCR_250_260 (1U << 13) /* Vdd voltage 2.50 ~ 2.60 */ 421#define MMC_OCR_260_270 (1U << 14) /* Vdd voltage 2.60 ~ 2.70 */ 422#define MMC_OCR_270_280 (1U << 15) /* Vdd voltage 2.70 ~ 2.80 */ 423#define MMC_OCR_280_290 (1U << 16) /* Vdd voltage 2.80 ~ 2.90 */ 424#define MMC_OCR_290_300 (1U << 17) /* Vdd voltage 2.90 ~ 3.00 */ 425#define MMC_OCR_300_310 (1U << 18) /* Vdd voltage 3.00 ~ 3.10 */ 426#define MMC_OCR_310_320 (1U << 19) /* Vdd voltage 3.10 ~ 3.20 */ 427#define MMC_OCR_320_330 (1U << 20) /* Vdd voltage 3.20 ~ 3.30 */ 428#define MMC_OCR_330_340 (1U << 21) /* Vdd voltage 3.30 ~ 3.40 */ 429#define MMC_OCR_340_350 (1U << 22) /* Vdd voltage 3.40 ~ 3.50 */ 430#define MMC_OCR_350_360 (1U << 23) /* Vdd voltage 3.50 ~ 3.60 */ 431#define MMC_OCR_MAX_VOLTAGE_SHIFT 23 432#define MMC_OCR_CCS (1u << 30) /* Card Capacity status (SD vs SDHC) */ 433#define MMC_OCR_CARD_BUSY (1U << 31) /* Card Power up status */ 434 435/* CSD -- decoded structure */ 436struct mmc_cid { 437 uint32_t mid; 438 char pnm[8]; 439 uint32_t psn; 440 uint16_t oid; 441 uint16_t mdt_year; 442 uint8_t mdt_month; 443 uint8_t prv; 444 uint8_t fwrev; 445}; 446 447struct mmc_csd 448{ 449 uint8_t csd_structure; 450 uint8_t spec_vers; 451 uint16_t ccc; 452 uint16_t tacc; 453 uint32_t nsac; 454 uint32_t r2w_factor; 455 uint32_t tran_speed; 456 uint32_t read_bl_len; 457 uint32_t write_bl_len; 458 uint32_t vdd_r_curr_min; 459 uint32_t vdd_r_curr_max; 460 uint32_t vdd_w_curr_min; 461 uint32_t vdd_w_curr_max; 462 uint32_t wp_grp_size; 463 uint32_t erase_sector; 464 uint64_t capacity; 465 unsigned int read_bl_partial:1, 466 read_blk_misalign:1, 467 write_bl_partial:1, 468 write_blk_misalign:1, 469 dsr_imp:1, 470 erase_blk_en:1, 471 wp_grp_enable:1; 472}; 473 474struct mmc_scr 475{ 476 unsigned char sda_vsn; 477 unsigned char bus_widths; 478#define SD_SCR_BUS_WIDTH_1 (1 << 0) 479#define SD_SCR_BUS_WIDTH_4 (1 << 2) 480}; 481 482struct mmc_sd_status 483{ 484 uint8_t bus_width; 485 uint8_t secured_mode; 486 uint16_t card_type; 487 uint16_t prot_area; 488 uint8_t speed_class; 489 uint8_t perf_move; 490 uint8_t au_size; 491 uint16_t erase_size; 492 uint8_t erase_timeout; 493 uint8_t erase_offset; 494}; 495 496/* 497 * Various MMC/SD constants 498 */ 499#define MMC_BOOT_RPMB_BLOCK_SIZE (128 * 1024) 500 501#define MMC_EXTCSD_SIZE 512 502 503#define MMC_PART_GP_MAX 4 504#define MMC_PART_MAX 8 505 506/* 507 * Older versions of the MMC standard had a variable sector size. However, 508 * I've been able to find no old MMC or SD cards that have a non 512 509 * byte sector size anywhere, so we assume that such cards are very rare 510 * and only note their existance in passing here... 511 */ 512#define MMC_SECTOR_SIZE 512 513 514#endif /* DEV_MMCREG_H */ 515