sys/bus/mmc/mmcreg.h

   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: src/sys/dev/mmc/mmcreg.h,v 1.8 2009/02/03 04:28:45 imp Exp $
  52  */
  53
  54 #ifndef BUS_MMC_MMCREG_H
  55 #define BUS_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 /* BUS_MMCREG_H */