mmcreg.h revision 183446
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: head/sys/dev/mmc/mmcreg.h 183446 2008-09-28 22:27:29Z imp $ 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 62struct mmc_data; 63struct mmc_request; 64 65struct 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/* R7 -- new in sd 2.0 */ 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 struct mmc_data *data; /* Data segment with cmd */ 101 struct mmc_request *mrq; /* backpointer to request */ 102}; 103 104/* 105 * R1 responses 106 * 107 * Types (per SD 2.0 standard) 108 * e : error bit 109 * s : status bit 110 * r : detected and set for the actual command response 111 * x : Detected and set during command execution. The host can get 112 * the status by issuing a command with R1 response. 113 * 114 * Clear Condition (per SD 2.0 standard) 115 * a : according to the card current state. 116 * b : always related to the previous command. reception of a valid 117 * command will clear it (with a delay of one command). 118 * c : clear by read 119 */ 120#define R1_OUT_OF_RANGE (1u << 31) /* erx, c */ 121#define R1_ADDRESS_ERROR (1u << 30) /* erx, c */ 122#define R1_BLOCK_LEN_ERROR (1u << 29) /* erx, c */ 123#define R1_ERASE_SEQ_ERROR (1u << 28) /* er, c */ 124#define R1_ERASE_PARAM (1u << 27) /* erx, c */ 125#define R1_WP_VIOLATION (1u << 26) /* erx, c */ 126#define R1_CARD_IS_LOCKED (1u << 25) /* sx, a */ 127#define R1_LOCK_UNLOCK_FAILED (1u << 24) /* erx, c */ 128#define R1_COM_CRC_ERROR (1u << 23) /* er, b */ 129#define R1_ILLEGAL_COMMAND (1u << 22) /* er, b */ 130#define R1_CARD_ECC_FAILED (1u << 21) /* erx, c */ 131#define R1_CC_ERROR (1u << 20) /* erx, c */ 132#define R1_ERROR (1u << 19) /* erx, c */ 133#define R1_CSD_OVERWRITE (1u << 16) /* erx, c */ 134#define R1_WP_ERASE_SKIP (1u << 15) /* erx, c */ 135#define R1_CARD_ECC_DISABLED (1u << 14) /* sx, a */ 136#define R1_ERASE_RESET (1u << 13) /* sr, c */ 137#define R1_CURRENT_STATE_MASK (0xfu << 9) /* sx, b */ 138#define R1_READY_FOR_DATA (1u << 8) /* sx, a */ 139#define R1_APP_CMD (1u << 5) /* sr, c */ 140#define R1_AKE_SEQ_ERROR (1u << 3) /* er, c */ 141#define R1_STATUS(x) (x & 0xFFFFE000 142#define R1_CURRENT_STATE(x) ((x) & R1_CURRENT_STATE_MASK) >> 9 143#define R1_STATE_IDLE 0 144#define R1_STATE_READY 1 145#define R1_STATE_IDENT 2 146#define R1_STATE_STBY 3 147#define R1_STATE_TRAN 4 148#define R1_STATE_DATA 5 149#define R1_STATE_RCV 6 150#define R1_STATE_PRG 7 151#define R1_STATE_DIS 8 152 153struct mmc_data { 154 size_t len; /* size of the data */ 155 size_t xfer_len; 156 void *data; /* data buffer */ 157 uint32_t flags; 158#define MMC_DATA_WRITE (1UL << 0) 159#define MMC_DATA_READ (1UL << 1) 160#define MMC_DATA_STREAM (1UL << 2) 161#define MMC_DATA_MULTI (1UL << 3) 162 struct mmc_request *mrq; 163}; 164 165struct mmc_request { 166 struct mmc_command *cmd; 167 struct mmc_command *stop; 168 void (*done)(struct mmc_request *); /* Completion function */ 169 void *done_data; /* requestor set data */ 170 uint32_t flags; 171#define MMC_REQ_DONE 1 172}; 173 174/* Command definitions */ 175 176/* Class 0 and 1: Basic commands & read stream commands */ 177#define MMC_GO_IDLE_STATE 0 178#define MMC_SEND_OP_COND 1 179#define MMC_ALL_SEND_CID 2 180#define MMC_SET_RELATIVE_ADDR 3 181#define SD_SEND_RELATIVE_ADDR 3 182#define MMC_SET_DSR 4 183 /* reserved: 5 */ 184#define MMC_SELECT_CARD 7 185#define MMC_DESELECT_CARD 7 186#define MMC_SEND_IF_COND 8 187#define MMC_SEND_CSD 9 188#define MMC_SEND_CID 10 189#define MMC_READ_DAT_UNTIL_STOP 11 190#define MMC_STOP_TRANSMISSION 12 191#define MMC_SEND_STATUS 13 192 /* reserved: 14 */ 193#define MMC_GO_INACTIVE_STATE 15 194 195/* Class 2: Block oriented read commands */ 196#define MMC_SET_BLOCKLEN 16 197#define MMC_READ_SINGLE_BLOCK 17 198#define MMC_READ_MULTIPLE_BLOCK 18 199 /* reserved: 19 */ 200 201/* Class 3: Stream write commands */ 202#define MMC_WRITE_DAT_UNTIL_STOP 20 203 /* reserved: 21 */ 204 /* reserved: 22 */ 205 206/* Class 4: Block oriented write commands */ 207#define MMC_SET_BLOCK_COUNT 23 208#define MMC_WRITE_BLOCK 24 209#define MMC_WRITE_MULTIPLE_BLOCK 25 210#define MMC_PROGARM_CID 26 211#define MMC_PROGRAM_CSD 27 212 213/* Class 6: Block oriented write protection commands */ 214#define MMC_SET_WRITE_PROT 28 215#define MMC_CLR_WRITE_PROT 29 216#define MMC_SEND_WRITE_PROT 30 217 /* reserved: 31 */ 218 219/* Class 5: Erase commands */ 220#define SD_ERASE_WR_BLK_START 32 221#define SD_ERASE_WR_BLK_END 33 222 /* 34 -- reserved old command */ 223#define MMC_ERASE_GROUP_START 35 224#define MMC_ERASE_GROUP_END 36 225 /* 37 -- reserved old command */ 226#define MMC_ERASE 38 227 228/* Class 9: I/O mode commands */ 229#define MMC_FAST_IO 39 230#define MMC_GO_IRQ_STATE 40 231 /* reserved: 41 */ 232 233/* Class 7: Lock card */ 234#define MMC_LOCK_UNLOCK 42 235 /* reserved: 43 */ 236 /* reserved: 44 */ 237 /* reserved: 45 */ 238 /* reserved: 46 */ 239 /* reserved: 47 */ 240 /* reserved: 48 */ 241 /* reserved: 49 */ 242 /* reserved: 50 */ 243 /* reserved: 51 */ 244 /* reserved: 54 */ 245 246/* Class 8: Application specific commands */ 247#define MMC_APP_CMD 55 248#define MMC_GEN_CMD 56 249 /* reserved: 57 */ 250 /* reserved: 58 */ 251 /* reserved: 59 */ 252 /* reserved for mfg: 60 */ 253 /* reserved for mfg: 61 */ 254 /* reserved for mfg: 62 */ 255 /* reserved for mfg: 63 */ 256 257/* Class 9: I/O cards (sd) */ 258#define SD_IO_RW_DIRECT 52 259#define SD_IO_RW_EXTENDED 53 260 261/* Class 10: Switch function commands */ 262#define SD_SWITCH_FUNC 6 263 /* reserved: 34 */ 264 /* reserved: 35 */ 265 /* reserved: 36 */ 266 /* reserved: 37 */ 267 /* reserved: 50 */ 268 /* reserved: 57 */ 269 270 271/* Application specific commands for SD */ 272#define ACMD_SET_BUS_WIDTH 6 273#define ACMD_SD_STATUS 13 274#define ACMD_SEND_NUM_WR_BLOCKS 22 275#define ACMD_SET_WR_BLK_ERASE_COUNT 23 276#define ACMD_SD_SEND_OP_COND 41 277#define ACMD_SET_CLR_CARD_DETECT 42 278#define ACMD_SEND_SCR 51 279 280/* OCR bits */ 281 282/* 283 * in SD 2.0 spec, bits 8-14 are now marked reserved 284 * Low voltage in SD2.0 spec is bit 7, TBD voltage 285 * Low voltage in MC 3.31 spec is bit 7, 1.65-1.95V 286 * Specs prior to MMC 3.31 defined bits 0-7 as voltages down to 1.5V. 287 * 3.31 redefined them to be reserved and also said that cards had to 288 * support the 2.7-3.6V and fixed the OCR to be 0xfff8000 for high voltage 289 * cards. MMC 4.0 says that a dual voltage card responds with 0xfff8080. 290 * Looks like the fine-grained control of the voltage tolerance ranges 291 * was abandoned. 292 * 293 * The MMC_OCR_CCS appears to be valid for only SD cards. 294 */ 295#define MMC_OCR_VOLTAGE 0x3fffffffU /* Vdd Voltage mask */ 296#define MMC_OCR_LOW_VOLTAGE (1u << 7) /* Low Voltage Range -- tbd */ 297#define MMC_OCR_200_210 (1U << 8) /* Vdd voltage 2.00 ~ 2.10 */ 298#define MMC_OCR_210_220 (1U << 9) /* Vdd voltage 2.10 ~ 2.20 */ 299#define MMC_OCR_220_230 (1U << 10) /* Vdd voltage 2.20 ~ 2.30 */ 300#define MMC_OCR_230_240 (1U << 11) /* Vdd voltage 2.30 ~ 2.40 */ 301#define MMC_OCR_240_250 (1U << 12) /* Vdd voltage 2.40 ~ 2.50 */ 302#define MMC_OCR_250_260 (1U << 13) /* Vdd voltage 2.50 ~ 2.60 */ 303#define MMC_OCR_260_270 (1U << 14) /* Vdd voltage 2.60 ~ 2.70 */ 304#define MMC_OCR_270_280 (1U << 15) /* Vdd voltage 2.70 ~ 2.80 */ 305#define MMC_OCR_280_290 (1U << 16) /* Vdd voltage 2.80 ~ 2.90 */ 306#define MMC_OCR_290_300 (1U << 17) /* Vdd voltage 2.90 ~ 3.00 */ 307#define MMC_OCR_300_310 (1U << 18) /* Vdd voltage 3.00 ~ 3.10 */ 308#define MMC_OCR_310_320 (1U << 19) /* Vdd voltage 3.10 ~ 3.20 */ 309#define MMC_OCR_320_330 (1U << 20) /* Vdd voltage 3.20 ~ 3.30 */ 310#define MMC_OCR_330_340 (1U << 21) /* Vdd voltage 3.30 ~ 3.40 */ 311#define MMC_OCR_340_350 (1U << 22) /* Vdd voltage 3.40 ~ 3.50 */ 312#define MMC_OCR_350_360 (1U << 23) /* Vdd voltage 3.50 ~ 3.60 */ 313#define MMC_OCR_CCS (1u << 30) /* Card Capacity status (SD vs SDHC) */ 314#define MMC_OCR_CARD_BUSY (1U << 31) /* Card Power up status */ 315 316/* CSD -- decoded structure */ 317struct mmc_cid { 318 uint32_t mid; 319 char pnm[8]; 320 uint32_t psn; 321 uint16_t oid; 322 uint16_t mdt_year; 323 uint8_t mdt_month; 324 uint8_t prv; 325 uint8_t fwrev; 326}; 327 328struct mmc_csd 329{ 330 uint8_t csd_structure; 331 uint16_t ccc; 332 uint16_t tacc; 333 uint32_t nsac; 334 uint32_t r2w_factor; 335 uint32_t tran_speed; 336 uint32_t read_bl_len; 337 uint32_t write_bl_len; 338 uint32_t vdd_r_curr_min; 339 uint32_t vdd_r_curr_max; 340 uint32_t vdd_w_curr_min; 341 uint32_t vdd_w_curr_max; 342 uint32_t wp_grp_size; 343 uint32_t sector_size; /* Erase sector size! */ 344 uint64_t capacity; 345 unsigned int read_bl_partial:1, 346 read_blk_misalign:1, 347 write_bl_partial:1, 348 write_blk_misalign:1, 349 dsr_imp:1, 350 erase_blk_en:1, 351 wp_grp_enable:1; 352}; 353 354#endif /* DEV_MMCREG_H */ 355