drivers/mmc/mmc.c

   1 /*
   2  * Copyright 2008, Freescale Semiconductor, Inc
   3  * Andy Fleming
   4  *
   5  * Based vaguely on the Linux code
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <config.h>
  11 #include <common.h>
  12 #include <command.h>
  13 #include <dm.h>
  14 #include <dm/device-internal.h>
  15 #include <errno.h>
  16 #include <mmc.h>
  17 #include <part.h>
  18 #include <power/regulator.h>
  19 #include <malloc.h>
  20 #include <memalign.h>
  21 #include <linux/list.h>
  22 #include <div64.h>
  23 #include "mmc_private.h"
  24
  25 static const unsigned int sd_au_size[] = {
  26         0,              SZ_16K / 512,           SZ_32K / 512,
  27         SZ_64K / 512,   SZ_128K / 512,          SZ_256K / 512,
  28         SZ_512K / 512,  SZ_1M / 512,            SZ_2M / 512,
  29         SZ_4M / 512,    SZ_8M / 512,            (SZ_8M + SZ_4M) / 512,
  30         SZ_16M / 512,   (SZ_16M + SZ_8M) / 512, SZ_32M / 512,   SZ_64M / 512,
  31 };
  32
  33 #if CONFIG_IS_ENABLED(MMC_TINY)
  34 static struct mmc mmc_static;
  35 struct mmc *find_mmc_device(int dev_num)
  36 {
  37         return &mmc_static;
  38 }
  39
  40 void mmc_do_preinit(void)
  41 {
  42         struct mmc *m = &mmc_static;
  43 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
  44         mmc_set_preinit(m, 1);
  45 #endif
  46         if (m->preinit)
  47                 mmc_start_init(m);
  48 }
  49
  50 struct blk_desc *mmc_get_blk_desc(struct mmc *mmc)
  51 {
  52         return &mmc->block_dev;
  53 }
  54 #endif
  55
  56 #ifndef CONFIG_DM_MMC_OPS
  57 __weak int board_mmc_getwp(struct mmc *mmc)
  58 {
  59         return -1;
  60 }
  61
  62 int mmc_getwp(struct mmc *mmc)
  63 {
  64         int wp;
  65
  66         wp = board_mmc_getwp(mmc);
  67
  68         if (wp < 0) {
  69                 if (mmc->cfg->ops->getwp)
  70                         wp = mmc->cfg->ops->getwp(mmc);
  71                 else
  72                         wp = 0;
  73         }
  74
  75         return wp;
  76 }
  77
  78 __weak int board_mmc_getcd(struct mmc *mmc)
  79 {
  80         return -1;
  81 }
  82 #endif
  83
  84 #ifdef CONFIG_MMC_TRACE
  85 void mmmc_trace_before_send(struct mmc *mmc, struct mmc_cmd *cmd)
  86 {
  87         printf("CMD_SEND:%d\n", cmd->cmdidx);
  88         printf("\t\tARG\t\t\t 0x%08X\n", cmd->cmdarg);
  89 }
  90
  91 void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd, int ret)
  92 {
  93         int i;
  94         u8 *ptr;
  95
  96         if (ret) {
  97                 printf("\t\tRET\t\t\t %d\n", ret);
  98         } else {
  99                 switch (cmd->resp_type) {
 100                 case MMC_RSP_NONE:
 101                         printf("\t\tMMC_RSP_NONE\n");
 102                         break;
 103                 case MMC_RSP_R1:
 104                         printf("\t\tMMC_RSP_R1,5,6,7 \t 0x%08X \n",
 105                                 cmd->response[0]);
 106                         break;
 107                 case MMC_RSP_R1b:
 108                         printf("\t\tMMC_RSP_R1b\t\t 0x%08X \n",
 109                                 cmd->response[0]);
 110                         break;
 111                 case MMC_RSP_R2:
 112                         printf("\t\tMMC_RSP_R2\t\t 0x%08X \n",
 113                                 cmd->response[0]);
 114                         printf("\t\t          \t\t 0x%08X \n",
 115                                 cmd->response[1]);
 116                         printf("\t\t          \t\t 0x%08X \n",
 117                                 cmd->response[2]);
 118                         printf("\t\t          \t\t 0x%08X \n",
 119                                 cmd->response[3]);
 120                         printf("\n");
 121                         printf("\t\t\t\t\tDUMPING DATA\n");
 122                         for (i = 0; i < 4; i++) {
 123                                 int j;
 124                                 printf("\t\t\t\t\t%03d - ", i*4);
 125                                 ptr = (u8 *)&cmd->response[i];
 126                                 ptr += 3;
 127                                 for (j = 0; j < 4; j++)
 128                                         printf("%02X ", *ptr--);
 129                                 printf("\n");
 130                         }
 131                         break;
 132                 case MMC_RSP_R3:
 133                         printf("\t\tMMC_RSP_R3,4\t\t 0x%08X \n",
 134                                 cmd->response[0]);
 135                         break;
 136                 default:
 137                         printf("\t\tERROR MMC rsp not supported\n");
 138                         break;
 139                 }
 140         }
 141 }
 142
 143 void mmc_trace_state(struct mmc *mmc, struct mmc_cmd *cmd)
 144 {
 145         int status;
 146
 147         status = (cmd->response[0] & MMC_STATUS_CURR_STATE) >> 9;
 148         printf("CURR STATE:%d\n", status);
 149 }
 150 #endif
 151
 152 #ifndef CONFIG_DM_MMC_OPS
 153 int mmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
 154 {
 155         int ret;
 156
 157         mmmc_trace_before_send(mmc, cmd);
 158         ret = mmc->cfg->ops->send_cmd(mmc, cmd, data);
 159         mmmc_trace_after_send(mmc, cmd, ret);
 160
 161         return ret;
 162 }
 163 #endif
 164
 165 int mmc_send_status(struct mmc *mmc, int timeout)
 166 {
 167         struct mmc_cmd cmd;
 168         int err, retries = 5;
 169
 170         cmd.cmdidx = MMC_CMD_SEND_STATUS;
 171         cmd.resp_type = MMC_RSP_R1;
 172         if (!mmc_host_is_spi(mmc))
 173                 cmd.cmdarg = mmc->rca << 16;
 174
 175         while (1) {
 176                 err = mmc_send_cmd(mmc, &cmd, NULL);
 177                 if (!err) {
 178                         if ((cmd.response[0] & MMC_STATUS_RDY_FOR_DATA) &&
 179                             (cmd.response[0] & MMC_STATUS_CURR_STATE) !=
 180                              MMC_STATE_PRG)
 181                                 break;
 182                         else if (cmd.response[0] & MMC_STATUS_MASK) {
 183 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
 184                                 printf("Status Error: 0x%08X\n",
 185                                         cmd.response[0]);
 186 #endif
 187                                 return -ECOMM;
 188                         }
 189                 } else if (--retries < 0)
 190                         return err;
 191
 192                 if (timeout-- <= 0)
 193                         break;
 194
 195                 udelay(1000);
 196         }
 197
 198         mmc_trace_state(mmc, &cmd);
 199         if (timeout <= 0) {
 200 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
 201                 printf("Timeout waiting card ready\n");
 202 #endif
 203                 return -ETIMEDOUT;
 204         }
 205
 206         return 0;
 207 }
 208
 209 int mmc_set_blocklen(struct mmc *mmc, int len)
 210 {
 211         struct mmc_cmd cmd;
 212
 213         if (mmc->ddr_mode)
 214                 return 0;
 215
 216         cmd.cmdidx = MMC_CMD_SET_BLOCKLEN;
 217         cmd.resp_type = MMC_RSP_R1;
 218         cmd.cmdarg = len;
 219
 220         return mmc_send_cmd(mmc, &cmd, NULL);
 221 }
 222
 223 static int mmc_read_blocks(struct mmc *mmc, void *dst, lbaint_t start,
 224                            lbaint_t blkcnt)
 225 {
 226         struct mmc_cmd cmd;
 227         struct mmc_data data;
 228
 229         if (blkcnt > 1)
 230                 cmd.cmdidx = MMC_CMD_READ_MULTIPLE_BLOCK;
 231         else
 232                 cmd.cmdidx = MMC_CMD_READ_SINGLE_BLOCK;
 233
 234         if (mmc->high_capacity)
 235                 cmd.cmdarg = start;
 236         else
 237                 cmd.cmdarg = start * mmc->read_bl_len;
 238
 239         cmd.resp_type = MMC_RSP_R1;
 240
 241         data.dest = dst;
 242         data.blocks = blkcnt;
 243         data.blocksize = mmc->read_bl_len;
 244         data.flags = MMC_DATA_READ;
 245
 246         if (mmc_send_cmd(mmc, &cmd, &data))
 247                 return 0;
 248
 249         if (blkcnt > 1) {
 250                 cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
 251                 cmd.cmdarg = 0;
 252                 cmd.resp_type = MMC_RSP_R1b;
 253                 if (mmc_send_cmd(mmc, &cmd, NULL)) {
 254 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
 255                         printf("mmc fail to send stop cmd\n");
 256 #endif
 257                         return 0;
 258                 }
 259         }
 260
 261         return blkcnt;
 262 }
 263
 264 #ifdef CONFIG_BLK
 265 ulong mmc_bread(struct udevice *dev, lbaint_t start, lbaint_t blkcnt, void *dst)
 266 #else
 267 ulong mmc_bread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt,
 268                 void *dst)
 269 #endif
 270 {
 271 #ifdef CONFIG_BLK
 272         struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
 273 #endif
 274         int dev_num = block_dev->devnum;
 275         int err;
 276         lbaint_t cur, blocks_todo = blkcnt;
 277
 278         if (blkcnt == 0)
 279                 return 0;
 280
 281         struct mmc *mmc = find_mmc_device(dev_num);
 282         if (!mmc)
 283                 return 0;
 284
 285         if (CONFIG_IS_ENABLED(MMC_TINY))
 286                 err = mmc_switch_part(mmc, block_dev->hwpart);
 287         else
 288                 err = blk_dselect_hwpart(block_dev, block_dev->hwpart);
 289
 290         if (err < 0)
 291                 return 0;
 292
 293         if ((start + blkcnt) > block_dev->lba) {
 294 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
 295                 printf("MMC: block number 0x" LBAF " exceeds max(0x" LBAF ")\n",
 296                         start + blkcnt, block_dev->lba);
 297 #endif
 298                 return 0;
 299         }
 300
 301         if (mmc_set_blocklen(mmc, mmc->read_bl_len)) {
 302                 debug("%s: Failed to set blocklen\n", __func__);
 303                 return 0;
 304         }
 305
 306         do {
 307                 cur = (blocks_todo > mmc->cfg->b_max) ?
 308                         mmc->cfg->b_max : blocks_todo;
 309                 if (mmc_read_blocks(mmc, dst, start, cur) != cur) {
 310                         debug("%s: Failed to read blocks\n", __func__);
 311                         return 0;
 312                 }
 313                 blocks_todo -= cur;
 314                 start += cur;
 315                 dst += cur * mmc->read_bl_len;
 316         } while (blocks_todo > 0);
 317
 318         return blkcnt;
 319 }
 320
 321 static int mmc_go_idle(struct mmc *mmc)
 322 {
 323         struct mmc_cmd cmd;
 324         int err;
 325
 326         udelay(1000);
 327
 328         cmd.cmdidx = MMC_CMD_GO_IDLE_STATE;
 329         cmd.cmdarg = 0;
 330         cmd.resp_type = MMC_RSP_NONE;
 331
 332         err = mmc_send_cmd(mmc, &cmd, NULL);
 333
 334         if (err)
 335                 return err;
 336
 337         udelay(2000);
 338
 339         return 0;
 340 }
 341
 342 static int sd_send_op_cond(struct mmc *mmc)
 343 {
 344         int timeout = 1000;
 345         int err;
 346         struct mmc_cmd cmd;
 347
 348         while (1) {
 349                 cmd.cmdidx = MMC_CMD_APP_CMD;
 350                 cmd.resp_type = MMC_RSP_R1;
 351                 cmd.cmdarg = 0;
 352
 353                 err = mmc_send_cmd(mmc, &cmd, NULL);
 354
 355                 if (err)
 356                         return err;
 357
 358                 cmd.cmdidx = SD_CMD_APP_SEND_OP_COND;
 359                 cmd.resp_type = MMC_RSP_R3;
 360
 361                 /*
 362                  * Most cards do not answer if some reserved bits
 363                  * in the ocr are set. However, Some controller
 364                  * can set bit 7 (reserved for low voltages), but
 365                  * how to manage low voltages SD card is not yet
 366                  * specified.
 367                  */
 368                 cmd.cmdarg = mmc_host_is_spi(mmc) ? 0 :
 369                         (mmc->cfg->voltages & 0xff8000);
 370
 371                 if (mmc->version == SD_VERSION_2)
 372                         cmd.cmdarg |= OCR_HCS;
 373
 374                 err = mmc_send_cmd(mmc, &cmd, NULL);
 375
 376                 if (err)
 377                         return err;
 378
 379                 if (cmd.response[0] & OCR_BUSY)
 380                         break;
 381
 382                 if (timeout-- <= 0)
 383                         return -EOPNOTSUPP;
 384
 385                 udelay(1000);
 386         }
 387
 388         if (mmc->version != SD_VERSION_2)
 389                 mmc->version = SD_VERSION_1_0;
 390
 391         if (mmc_host_is_spi(mmc)) { /* read OCR for spi */
 392                 cmd.cmdidx = MMC_CMD_SPI_READ_OCR;
 393                 cmd.resp_type = MMC_RSP_R3;
 394                 cmd.cmdarg = 0;
 395
 396                 err = mmc_send_cmd(mmc, &cmd, NULL);
 397
 398                 if (err)
 399                         return err;
 400         }
 401
 402         mmc->ocr = cmd.response[0];
 403
 404         mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS);
 405         mmc->rca = 0;
 406
 407         return 0;
 408 }
 409
 410 static int mmc_send_op_cond_iter(struct mmc *mmc, int use_arg)
 411 {
 412         struct mmc_cmd cmd;
 413         int err;
 414
 415         cmd.cmdidx = MMC_CMD_SEND_OP_COND;
 416         cmd.resp_type = MMC_RSP_R3;
 417         cmd.cmdarg = 0;
 418         if (use_arg && !mmc_host_is_spi(mmc))
 419                 cmd.cmdarg = OCR_HCS |
 420                         (mmc->cfg->voltages &
 421                         (mmc->ocr & OCR_VOLTAGE_MASK)) |
 422                         (mmc->ocr & OCR_ACCESS_MODE);
 423
 424         err = mmc_send_cmd(mmc, &cmd, NULL);
 425         if (err)
 426                 return err;
 427         mmc->ocr = cmd.response[0];
 428         return 0;
 429 }
 430
 431 static int mmc_send_op_cond(struct mmc *mmc)
 432 {
 433         int err, i;
 434
 435         /* Some cards seem to need this */
 436         mmc_go_idle(mmc);
 437
 438         /* Asking to the card its capabilities */
 439         for (i = 0; i < 2; i++) {
 440                 err = mmc_send_op_cond_iter(mmc, i != 0);
 441                 if (err)
 442                         return err;
 443
 444                 /* exit if not busy (flag seems to be inverted) */
 445                 if (mmc->ocr & OCR_BUSY)
 446                         break;
 447         }
 448         mmc->op_cond_pending = 1;
 449         return 0;
 450 }
 451
 452 static int mmc_complete_op_cond(struct mmc *mmc)
 453 {
 454         struct mmc_cmd cmd;
 455         int timeout = 1000;
 456         uint start;
 457         int err;
 458
 459         mmc->op_cond_pending = 0;
 460         if (!(mmc->ocr & OCR_BUSY)) {
 461                 /* Some cards seem to need this */
 462                 mmc_go_idle(mmc);
 463
 464                 start = get_timer(0);
 465                 while (1) {
 466                         err = mmc_send_op_cond_iter(mmc, 1);
 467                         if (err)
 468                                 return err;
 469                         if (mmc->ocr & OCR_BUSY)
 470                                 break;
 471                         if (get_timer(start) > timeout)
 472                                 return -EOPNOTSUPP;
 473                         udelay(100);
 474                 }
 475         }
 476
 477         if (mmc_host_is_spi(mmc)) { /* read OCR for spi */
 478                 cmd.cmdidx = MMC_CMD_SPI_READ_OCR;
 479                 cmd.resp_type = MMC_RSP_R3;
 480                 cmd.cmdarg = 0;
 481
 482                 err = mmc_send_cmd(mmc, &cmd, NULL);
 483
 484                 if (err)
 485                         return err;
 486
 487                 mmc->ocr = cmd.response[0];
 488         }
 489
 490         mmc->version = MMC_VERSION_UNKNOWN;
 491
 492         mmc->high_capacity = ((mmc->ocr & OCR_HCS) == OCR_HCS);
 493         mmc->rca = 1;
 494
 495         return 0;
 496 }
 497
 498
 499 static int mmc_send_ext_csd(struct mmc *mmc, u8 *ext_csd)
 500 {
 501         struct mmc_cmd cmd;
 502         struct mmc_data data;
 503         int err;
 504
 505         /* Get the Card Status Register */
 506         cmd.cmdidx = MMC_CMD_SEND_EXT_CSD;
 507         cmd.resp_type = MMC_RSP_R1;
 508         cmd.cmdarg = 0;
 509
 510         data.dest = (char *)ext_csd;
 511         data.blocks = 1;
 512         data.blocksize = MMC_MAX_BLOCK_LEN;
 513         data.flags = MMC_DATA_READ;
 514
 515         err = mmc_send_cmd(mmc, &cmd, &data);
 516
 517         return err;
 518 }
 519
 520 int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value)
 521 {
 522         struct mmc_cmd cmd;
 523         int timeout = 1000;
 524         int retries = 3;
 525         int ret;
 526
 527         cmd.cmdidx = MMC_CMD_SWITCH;
 528         cmd.resp_type = MMC_RSP_R1b;
 529         cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24) |
 530                                  (index << 16) |
 531                                  (value << 8);
 532
 533         while (retries > 0) {
 534                 ret = mmc_send_cmd(mmc, &cmd, NULL);
 535
 536                 /* Waiting for the ready status */
 537                 if (!ret) {
 538                         ret = mmc_send_status(mmc, timeout);
 539                         return ret;
 540                 }
 541
 542                 retries--;
 543         }
 544
 545         return ret;
 546
 547 }
 548
 549 static int mmc_change_freq(struct mmc *mmc)
 550 {
 551         ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
 552         char cardtype;
 553         int err;
 554
 555         mmc->card_caps = 0;
 556
 557         if (mmc_host_is_spi(mmc))
 558                 return 0;
 559
 560         /* Only version 4 supports high-speed */
 561         if (mmc->version < MMC_VERSION_4)
 562                 return 0;
 563
 564         mmc->card_caps |= MMC_MODE_4BIT | MMC_MODE_8BIT;
 565
 566         err = mmc_send_ext_csd(mmc, ext_csd);
 567
 568         if (err)
 569                 return err;
 570
 571         cardtype = ext_csd[EXT_CSD_CARD_TYPE] & 0xf;
 572
 573         err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING, 1);
 574
 575         if (err)
 576                 return err;
 577
 578         /* Now check to see that it worked */
 579         err = mmc_send_ext_csd(mmc, ext_csd);
 580
 581         if (err)
 582                 return err;
 583
 584         /* No high-speed support */
 585         if (!ext_csd[EXT_CSD_HS_TIMING])
 586                 return 0;
 587
 588         /* High Speed is set, there are two types: 52MHz and 26MHz */
 589         if (cardtype & EXT_CSD_CARD_TYPE_52) {
 590                 if (cardtype & EXT_CSD_CARD_TYPE_DDR_1_8V)
 591                         mmc->card_caps |= MMC_MODE_DDR_52MHz;
 592                 mmc->card_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
 593         } else {
 594                 mmc->card_caps |= MMC_MODE_HS;
 595         }
 596
 597         return 0;
 598 }
 599
 600 static int mmc_set_capacity(struct mmc *mmc, int part_num)
 601 {
 602         switch (part_num) {
 603         case 0:
 604                 mmc->capacity = mmc->capacity_user;
 605                 break;
 606         case 1:
 607         case 2:
 608                 mmc->capacity = mmc->capacity_boot;
 609                 break;
 610         case 3:
 611                 mmc->capacity = mmc->capacity_rpmb;
 612                 break;
 613         case 4:
 614         case 5:
 615         case 6:
 616         case 7:
 617                 mmc->capacity = mmc->capacity_gp[part_num - 4];
 618                 break;
 619         default:
 620                 return -1;
 621         }
 622
 623         mmc_get_blk_desc(mmc)->lba = lldiv(mmc->capacity, mmc->read_bl_len);
 624
 625         return 0;
 626 }
 627
 628 int mmc_switch_part(struct mmc *mmc, unsigned int part_num)
 629 {
 630         int ret;
 631
 632         ret = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONF,
 633                          (mmc->part_config & ~PART_ACCESS_MASK)
 634                          | (part_num & PART_ACCESS_MASK));
 635
 636         /*
 637          * Set the capacity if the switch succeeded or was intended
 638          * to return to representing the raw device.
 639          */
 640         if ((ret == 0) || ((ret == -ENODEV) && (part_num == 0))) {
 641                 ret = mmc_set_capacity(mmc, part_num);
 642                 mmc_get_blk_desc(mmc)->hwpart = part_num;
 643         }
 644
 645         return ret;
 646 }
 647
 648 int mmc_hwpart_config(struct mmc *mmc,
 649                       const struct mmc_hwpart_conf *conf,
 650                       enum mmc_hwpart_conf_mode mode)
 651 {
 652         u8 part_attrs = 0;
 653         u32 enh_size_mult;
 654         u32 enh_start_addr;
 655         u32 gp_size_mult[4];
 656         u32 max_enh_size_mult;
 657         u32 tot_enh_size_mult = 0;
 658         u8 wr_rel_set;
 659         int i, pidx, err;
 660         ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
 661
 662         if (mode < MMC_HWPART_CONF_CHECK || mode > MMC_HWPART_CONF_COMPLETE)
 663                 return -EINVAL;
 664
 665         if (IS_SD(mmc) || (mmc->version < MMC_VERSION_4_41)) {
 666                 printf("eMMC >= 4.4 required for enhanced user data area\n");
 667                 return -EMEDIUMTYPE;
 668         }
 669
 670         if (!(mmc->part_support & PART_SUPPORT)) {
 671                 printf("Card does not support partitioning\n");
 672                 return -EMEDIUMTYPE;
 673         }
 674
 675         if (!mmc->hc_wp_grp_size) {
 676                 printf("Card does not define HC WP group size\n");
 677                 return -EMEDIUMTYPE;
 678         }
 679
 680         /* check partition alignment and total enhanced size */
 681         if (conf->user.enh_size) {
 682                 if (conf->user.enh_size % mmc->hc_wp_grp_size ||
 683                     conf->user.enh_start % mmc->hc_wp_grp_size) {
 684                         printf("User data enhanced area not HC WP group "
 685                                "size aligned\n");
 686                         return -EINVAL;
 687                 }
 688                 part_attrs |= EXT_CSD_ENH_USR;
 689                 enh_size_mult = conf->user.enh_size / mmc->hc_wp_grp_size;
 690                 if (mmc->high_capacity) {
 691                         enh_start_addr = conf->user.enh_start;
 692                 } else {
 693                         enh_start_addr = (conf->user.enh_start << 9);
 694                 }
 695         } else {
 696                 enh_size_mult = 0;
 697                 enh_start_addr = 0;
 698         }
 699         tot_enh_size_mult += enh_size_mult;
 700
 701         for (pidx = 0; pidx < 4; pidx++) {
 702                 if (conf->gp_part[pidx].size % mmc->hc_wp_grp_size) {
 703                         printf("GP%i partition not HC WP group size "
 704                                "aligned\n", pidx+1);
 705                         return -EINVAL;
 706                 }
 707                 gp_size_mult[pidx] = conf->gp_part[pidx].size / mmc->hc_wp_grp_size;
 708                 if (conf->gp_part[pidx].size && conf->gp_part[pidx].enhanced) {
 709                         part_attrs |= EXT_CSD_ENH_GP(pidx);
 710                         tot_enh_size_mult += gp_size_mult[pidx];
 711                 }
 712         }
 713
 714         if (part_attrs && ! (mmc->part_support & ENHNCD_SUPPORT)) {
 715                 printf("Card does not support enhanced attribute\n");
 716                 return -EMEDIUMTYPE;
 717         }
 718
 719         err = mmc_send_ext_csd(mmc, ext_csd);
 720         if (err)
 721                 return err;
 722
 723         max_enh_size_mult =
 724                 (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT+2] << 16) +
 725                 (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT+1] << 8) +
 726                 ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT];
 727         if (tot_enh_size_mult > max_enh_size_mult) {
 728                 printf("Total enhanced size exceeds maximum (%u > %u)\n",
 729                        tot_enh_size_mult, max_enh_size_mult);
 730                 return -EMEDIUMTYPE;
 731         }
 732
 733         /* The default value of EXT_CSD_WR_REL_SET is device
 734          * dependent, the values can only be changed if the
 735          * EXT_CSD_HS_CTRL_REL bit is set. The values can be
 736          * changed only once and before partitioning is completed. */
 737         wr_rel_set = ext_csd[EXT_CSD_WR_REL_SET];
 738         if (conf->user.wr_rel_change) {
 739                 if (conf->user.wr_rel_set)
 740                         wr_rel_set |= EXT_CSD_WR_DATA_REL_USR;
 741                 else
 742                         wr_rel_set &= ~EXT_CSD_WR_DATA_REL_USR;
 743         }
 744         for (pidx = 0; pidx < 4; pidx++) {
 745                 if (conf->gp_part[pidx].wr_rel_change) {
 746                         if (conf->gp_part[pidx].wr_rel_set)
 747                                 wr_rel_set |= EXT_CSD_WR_DATA_REL_GP(pidx);
 748                         else
 749                                 wr_rel_set &= ~EXT_CSD_WR_DATA_REL_GP(pidx);
 750                 }
 751         }
 752
 753         if (wr_rel_set != ext_csd[EXT_CSD_WR_REL_SET] &&
 754             !(ext_csd[EXT_CSD_WR_REL_PARAM] & EXT_CSD_HS_CTRL_REL)) {
 755                 puts("Card does not support host controlled partition write "
 756                      "reliability settings\n");
 757                 return -EMEDIUMTYPE;
 758         }
 759
 760         if (ext_csd[EXT_CSD_PARTITION_SETTING] &
 761             EXT_CSD_PARTITION_SETTING_COMPLETED) {
 762                 printf("Card already partitioned\n");
 763                 return -EPERM;
 764         }
 765
 766         if (mode == MMC_HWPART_CONF_CHECK)
 767                 return 0;
 768
 769         /* Partitioning requires high-capacity size definitions */
 770         if (!(ext_csd[EXT_CSD_ERASE_GROUP_DEF] & 0x01)) {
 771                 err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 772                                  EXT_CSD_ERASE_GROUP_DEF, 1);
 773
 774                 if (err)
 775                         return err;
 776
 777                 ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1;
 778
 779                 /* update erase group size to be high-capacity */
 780                 mmc->erase_grp_size =
 781                         ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024;
 782
 783         }
 784
 785         /* all OK, write the configuration */
 786         for (i = 0; i < 4; i++) {
 787                 err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 788                                  EXT_CSD_ENH_START_ADDR+i,
 789                                  (enh_start_addr >> (i*8)) & 0xFF);
 790                 if (err)
 791                         return err;
 792         }
 793         for (i = 0; i < 3; i++) {
 794                 err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 795                                  EXT_CSD_ENH_SIZE_MULT+i,
 796                                  (enh_size_mult >> (i*8)) & 0xFF);
 797                 if (err)
 798                         return err;
 799         }
 800         for (pidx = 0; pidx < 4; pidx++) {
 801                 for (i = 0; i < 3; i++) {
 802                         err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 803                                          EXT_CSD_GP_SIZE_MULT+pidx*3+i,
 804                                          (gp_size_mult[pidx] >> (i*8)) & 0xFF);
 805                         if (err)
 806                                 return err;
 807                 }
 808         }
 809         err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 810                          EXT_CSD_PARTITIONS_ATTRIBUTE, part_attrs);
 811         if (err)
 812                 return err;
 813
 814         if (mode == MMC_HWPART_CONF_SET)
 815                 return 0;
 816
 817         /* The WR_REL_SET is a write-once register but shall be
 818          * written before setting PART_SETTING_COMPLETED. As it is
 819          * write-once we can only write it when completing the
 820          * partitioning. */
 821         if (wr_rel_set != ext_csd[EXT_CSD_WR_REL_SET]) {
 822                 err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 823                                  EXT_CSD_WR_REL_SET, wr_rel_set);
 824                 if (err)
 825                         return err;
 826         }
 827
 828         /* Setting PART_SETTING_COMPLETED confirms the partition
 829          * configuration but it only becomes effective after power
 830          * cycle, so we do not adjust the partition related settings
 831          * in the mmc struct. */
 832
 833         err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
 834                          EXT_CSD_PARTITION_SETTING,
 835                          EXT_CSD_PARTITION_SETTING_COMPLETED);
 836         if (err)
 837                 return err;
 838
 839         return 0;
 840 }
 841
 842 #ifndef CONFIG_DM_MMC_OPS
 843 int mmc_getcd(struct mmc *mmc)
 844 {
 845         int cd;
 846
 847         cd = board_mmc_getcd(mmc);
 848
 849         if (cd < 0) {
 850                 if (mmc->cfg->ops->getcd)
 851                         cd = mmc->cfg->ops->getcd(mmc);
 852                 else
 853                         cd = 1;
 854         }
 855
 856         return cd;
 857 }
 858 #endif
 859
 860 static int sd_switch(struct mmc *mmc, int mode, int group, u8 value, u8 *resp)
 861 {
 862         struct mmc_cmd cmd;
 863         struct mmc_data data;
 864
 865         /* Switch the frequency */
 866         cmd.cmdidx = SD_CMD_SWITCH_FUNC;
 867         cmd.resp_type = MMC_RSP_R1;
 868         cmd.cmdarg = (mode << 31) | 0xffffff;
 869         cmd.cmdarg &= ~(0xf << (group * 4));
 870         cmd.cmdarg |= value << (group * 4);
 871
 872         data.dest = (char *)resp;
 873         data.blocksize = 64;
 874         data.blocks = 1;
 875         data.flags = MMC_DATA_READ;
 876
 877         return mmc_send_cmd(mmc, &cmd, &data);
 878 }
 879
 880
 881 static int sd_change_freq(struct mmc *mmc)
 882 {
 883         int err;
 884         struct mmc_cmd cmd;
 885         ALLOC_CACHE_ALIGN_BUFFER(uint, scr, 2);
 886         ALLOC_CACHE_ALIGN_BUFFER(uint, switch_status, 16);
 887         struct mmc_data data;
 888         int timeout;
 889
 890         mmc->card_caps = 0;
 891
 892         if (mmc_host_is_spi(mmc))
 893                 return 0;
 894
 895         /* Read the SCR to find out if this card supports higher speeds */
 896         cmd.cmdidx = MMC_CMD_APP_CMD;
 897         cmd.resp_type = MMC_RSP_R1;
 898         cmd.cmdarg = mmc->rca << 16;
 899
 900         err = mmc_send_cmd(mmc, &cmd, NULL);
 901
 902         if (err)
 903                 return err;
 904
 905         cmd.cmdidx = SD_CMD_APP_SEND_SCR;
 906         cmd.resp_type = MMC_RSP_R1;
 907         cmd.cmdarg = 0;
 908
 909         timeout = 3;
 910
 911 retry_scr:
 912         data.dest = (char *)scr;
 913         data.blocksize = 8;
 914         data.blocks = 1;
 915         data.flags = MMC_DATA_READ;
 916
 917         err = mmc_send_cmd(mmc, &cmd, &data);
 918
 919         if (err) {
 920                 if (timeout--)
 921                         goto retry_scr;
 922
 923                 return err;
 924         }
 925
 926         mmc->scr[0] = __be32_to_cpu(scr[0]);
 927         mmc->scr[1] = __be32_to_cpu(scr[1]);
 928
 929         switch ((mmc->scr[0] >> 24) & 0xf) {
 930         case 0:
 931                 mmc->version = SD_VERSION_1_0;
 932                 break;
 933         case 1:
 934                 mmc->version = SD_VERSION_1_10;
 935                 break;
 936         case 2:
 937                 mmc->version = SD_VERSION_2;
 938                 if ((mmc->scr[0] >> 15) & 0x1)
 939                         mmc->version = SD_VERSION_3;
 940                 break;
 941         default:
 942                 mmc->version = SD_VERSION_1_0;
 943                 break;
 944         }
 945
 946         if (mmc->scr[0] & SD_DATA_4BIT)
 947                 mmc->card_caps |= MMC_MODE_4BIT;
 948
 949         /* Version 1.0 doesn't support switching */
 950         if (mmc->version == SD_VERSION_1_0)
 951                 return 0;
 952
 953         timeout = 4;
 954         while (timeout--) {
 955                 err = sd_switch(mmc, SD_SWITCH_CHECK, 0, 1,
 956                                 (u8 *)switch_status);
 957
 958                 if (err)
 959                         return err;
 960
 961                 /* The high-speed function is busy.  Try again */
 962                 if (!(__be32_to_cpu(switch_status[7]) & SD_HIGHSPEED_BUSY))
 963                         break;
 964         }
 965
 966         /* If high-speed isn't supported, we return */
 967         if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED))
 968                 return 0;
 969
 970         /*
 971          * If the host doesn't support SD_HIGHSPEED, do not switch card to
 972          * HIGHSPEED mode even if the card support SD_HIGHSPPED.
 973          * This can avoid furthur problem when the card runs in different
 974          * mode between the host.
 975          */
 976         if (!((mmc->cfg->host_caps & MMC_MODE_HS_52MHz) &&
 977                 (mmc->cfg->host_caps & MMC_MODE_HS)))
 978                 return 0;
 979
 980         err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)switch_status);
 981
 982         if (err)
 983                 return err;
 984
 985         if ((__be32_to_cpu(switch_status[4]) & 0x0f000000) == 0x01000000)
 986                 mmc->card_caps |= MMC_MODE_HS;
 987
 988         return 0;
 989 }
 990
 991 static int sd_read_ssr(struct mmc *mmc)
 992 {
 993         int err, i;
 994         struct mmc_cmd cmd;
 995         ALLOC_CACHE_ALIGN_BUFFER(uint, ssr, 16);
 996         struct mmc_data data;
 997         int timeout = 3;
 998         unsigned int au, eo, et, es;
 999
1000         cmd.cmdidx = MMC_CMD_APP_CMD;
1001         cmd.resp_type = MMC_RSP_R1;
1002         cmd.cmdarg = mmc->rca << 16;
1003
1004         err = mmc_send_cmd(mmc, &cmd, NULL);
1005         if (err)
1006                 return err;
1007
1008         cmd.cmdidx = SD_CMD_APP_SD_STATUS;
1009         cmd.resp_type = MMC_RSP_R1;
1010         cmd.cmdarg = 0;
1011
1012 retry_ssr:
1013         data.dest = (char *)ssr;
1014         data.blocksize = 64;
1015         data.blocks = 1;
1016         data.flags = MMC_DATA_READ;
1017
1018         err = mmc_send_cmd(mmc, &cmd, &data);
1019         if (err) {
1020                 if (timeout--)
1021                         goto retry_ssr;
1022
1023                 return err;
1024         }
1025
1026         for (i = 0; i < 16; i++)
1027                 ssr[i] = be32_to_cpu(ssr[i]);
1028
1029         au = (ssr[2] >> 12) & 0xF;
1030         if ((au <= 9) || (mmc->version == SD_VERSION_3)) {
1031                 mmc->ssr.au = sd_au_size[au];
1032                 es = (ssr[3] >> 24) & 0xFF;
1033                 es |= (ssr[2] & 0xFF) << 8;
1034                 et = (ssr[3] >> 18) & 0x3F;
1035                 if (es && et) {
1036                         eo = (ssr[3] >> 16) & 0x3;
1037                         mmc->ssr.erase_timeout = (et * 1000) / es;
1038                         mmc->ssr.erase_offset = eo * 1000;
1039                 }
1040         } else {
1041                 debug("Invalid Allocation Unit Size.\n");
1042         }
1043
1044         return 0;
1045 }
1046
1047 /* frequency bases */
1048 /* divided by 10 to be nice to platforms without floating point */
1049 static const int fbase[] = {
1050         10000,
1051         100000,
1052         1000000,
1053         10000000,
1054 };
1055
1056 /* Multiplier values for TRAN_SPEED.  Multiplied by 10 to be nice
1057  * to platforms without floating point.
1058  */
1059 static const u8 multipliers[] = {
1060         0,      /* reserved */
1061         10,
1062         12,
1063         13,
1064         15,
1065         20,
1066         25,
1067         30,
1068         35,
1069         40,
1070         45,
1071         50,
1072         55,
1073         60,
1074         70,
1075         80,
1076 };
1077
1078 #ifndef CONFIG_DM_MMC_OPS
1079 static void mmc_set_ios(struct mmc *mmc)
1080 {
1081         if (mmc->cfg->ops->set_ios)
1082                 mmc->cfg->ops->set_ios(mmc);
1083 }
1084 #endif
1085
1086 void mmc_set_clock(struct mmc *mmc, uint clock)
1087 {
1088         if (clock > mmc->cfg->f_max)
1089                 clock = mmc->cfg->f_max;
1090
1091         if (clock < mmc->cfg->f_min)
1092                 clock = mmc->cfg->f_min;
1093
1094         mmc->clock = clock;
1095
1096         mmc_set_ios(mmc);
1097 }
1098
1099 static void mmc_set_bus_width(struct mmc *mmc, uint width)
1100 {
1101         mmc->bus_width = width;
1102
1103         mmc_set_ios(mmc);
1104 }
1105
1106 static int mmc_startup(struct mmc *mmc)
1107 {
1108         int err, i;
1109         uint mult, freq;
1110         u64 cmult, csize, capacity;
1111         struct mmc_cmd cmd;
1112         ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
1113         ALLOC_CACHE_ALIGN_BUFFER(u8, test_csd, MMC_MAX_BLOCK_LEN);
1114         int timeout = 1000;
1115         bool has_parts = false;
1116         bool part_completed;
1117         struct blk_desc *bdesc;
1118
1119 #ifdef CONFIG_MMC_SPI_CRC_ON
1120         if (mmc_host_is_spi(mmc)) { /* enable CRC check for spi */
1121                 cmd.cmdidx = MMC_CMD_SPI_CRC_ON_OFF;
1122                 cmd.resp_type = MMC_RSP_R1;
1123                 cmd.cmdarg = 1;
1124                 err = mmc_send_cmd(mmc, &cmd, NULL);
1125
1126                 if (err)
1127                         return err;
1128         }
1129 #endif
1130
1131         /* Put the Card in Identify Mode */
1132         cmd.cmdidx = mmc_host_is_spi(mmc) ? MMC_CMD_SEND_CID :
1133                 MMC_CMD_ALL_SEND_CID; /* cmd not supported in spi */
1134         cmd.resp_type = MMC_RSP_R2;
1135         cmd.cmdarg = 0;
1136
1137         err = mmc_send_cmd(mmc, &cmd, NULL);
1138
1139         if (err)
1140                 return err;
1141
1142         memcpy(mmc->cid, cmd.response, 16);
1143
1144         /*
1145          * For MMC cards, set the Relative Address.
1146          * For SD cards, get the Relatvie Address.
1147          * This also puts the cards into Standby State
1148          */
1149         if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
1150                 cmd.cmdidx = SD_CMD_SEND_RELATIVE_ADDR;
1151                 cmd.cmdarg = mmc->rca << 16;
1152                 cmd.resp_type = MMC_RSP_R6;
1153
1154                 err = mmc_send_cmd(mmc, &cmd, NULL);
1155
1156                 if (err)
1157                         return err;
1158
1159                 if (IS_SD(mmc))
1160                         mmc->rca = (cmd.response[0] >> 16) & 0xffff;
1161         }
1162
1163         /* Get the Card-Specific Data */
1164         cmd.cmdidx = MMC_CMD_SEND_CSD;
1165         cmd.resp_type = MMC_RSP_R2;
1166         cmd.cmdarg = mmc->rca << 16;
1167
1168         err = mmc_send_cmd(mmc, &cmd, NULL);
1169
1170         /* Waiting for the ready status */
1171         mmc_send_status(mmc, timeout);
1172
1173         if (err)
1174                 return err;
1175
1176         mmc->csd[0] = cmd.response[0];
1177         mmc->csd[1] = cmd.response[1];
1178         mmc->csd[2] = cmd.response[2];
1179         mmc->csd[3] = cmd.response[3];
1180
1181         if (mmc->version == MMC_VERSION_UNKNOWN) {
1182                 int version = (cmd.response[0] >> 26) & 0xf;
1183
1184                 switch (version) {
1185                 case 0:
1186                         mmc->version = MMC_VERSION_1_2;
1187                         break;
1188                 case 1:
1189                         mmc->version = MMC_VERSION_1_4;
1190                         break;
1191                 case 2:
1192                         mmc->version = MMC_VERSION_2_2;
1193                         break;
1194                 case 3:
1195                         mmc->version = MMC_VERSION_3;
1196                         break;
1197                 case 4:
1198                         mmc->version = MMC_VERSION_4;
1199                         break;
1200                 default:
1201                         mmc->version = MMC_VERSION_1_2;
1202                         break;
1203                 }
1204         }
1205
1206         /* divide frequency by 10, since the mults are 10x bigger */
1207         freq = fbase[(cmd.response[0] & 0x7)];
1208         mult = multipliers[((cmd.response[0] >> 3) & 0xf)];
1209
1210         mmc->tran_speed = freq * mult;
1211
1212         mmc->dsr_imp = ((cmd.response[1] >> 12) & 0x1);
1213         mmc->read_bl_len = 1 << ((cmd.response[1] >> 16) & 0xf);
1214
1215         if (IS_SD(mmc))
1216                 mmc->write_bl_len = mmc->read_bl_len;
1217         else
1218                 mmc->write_bl_len = 1 << ((cmd.response[3] >> 22) & 0xf);
1219
1220         if (mmc->high_capacity) {
1221                 csize = (mmc->csd[1] & 0x3f) << 16
1222                         | (mmc->csd[2] & 0xffff0000) >> 16;
1223                 cmult = 8;
1224         } else {
1225                 csize = (mmc->csd[1] & 0x3ff) << 2
1226                         | (mmc->csd[2] & 0xc0000000) >> 30;
1227                 cmult = (mmc->csd[2] & 0x00038000) >> 15;
1228         }
1229
1230         mmc->capacity_user = (csize + 1) << (cmult + 2);
1231         mmc->capacity_user *= mmc->read_bl_len;
1232         mmc->capacity_boot = 0;
1233         mmc->capacity_rpmb = 0;
1234         for (i = 0; i < 4; i++)
1235                 mmc->capacity_gp[i] = 0;
1236
1237         if (mmc->read_bl_len > MMC_MAX_BLOCK_LEN)
1238                 mmc->read_bl_len = MMC_MAX_BLOCK_LEN;
1239
1240         if (mmc->write_bl_len > MMC_MAX_BLOCK_LEN)
1241                 mmc->write_bl_len = MMC_MAX_BLOCK_LEN;
1242
1243         if ((mmc->dsr_imp) && (0xffffffff != mmc->dsr)) {
1244                 cmd.cmdidx = MMC_CMD_SET_DSR;
1245                 cmd.cmdarg = (mmc->dsr & 0xffff) << 16;
1246                 cmd.resp_type = MMC_RSP_NONE;
1247                 if (mmc_send_cmd(mmc, &cmd, NULL))
1248                         printf("MMC: SET_DSR failed\n");
1249         }
1250
1251         /* Select the card, and put it into Transfer Mode */
1252         if (!mmc_host_is_spi(mmc)) { /* cmd not supported in spi */
1253                 cmd.cmdidx = MMC_CMD_SELECT_CARD;
1254                 cmd.resp_type = MMC_RSP_R1;
1255                 cmd.cmdarg = mmc->rca << 16;
1256                 err = mmc_send_cmd(mmc, &cmd, NULL);
1257
1258                 if (err)
1259                         return err;
1260         }
1261
1262         /*
1263          * For SD, its erase group is always one sector
1264          */
1265         mmc->erase_grp_size = 1;
1266         mmc->part_config = MMCPART_NOAVAILABLE;
1267         if (!IS_SD(mmc) && (mmc->version >= MMC_VERSION_4)) {
1268                 /* check  ext_csd version and capacity */
1269                 err = mmc_send_ext_csd(mmc, ext_csd);
1270                 if (err)
1271                         return err;
1272                 if (ext_csd[EXT_CSD_REV] >= 2) {
1273                         /*
1274                          * According to the JEDEC Standard, the value of
1275                          * ext_csd's capacity is valid if the value is more
1276                          * than 2GB
1277                          */
1278                         capacity = ext_csd[EXT_CSD_SEC_CNT] << 0
1279                                         | ext_csd[EXT_CSD_SEC_CNT + 1] << 8
1280                                         | ext_csd[EXT_CSD_SEC_CNT + 2] << 16
1281                                         | ext_csd[EXT_CSD_SEC_CNT + 3] << 24;
1282                         capacity *= MMC_MAX_BLOCK_LEN;
1283                         if ((capacity >> 20) > 2 * 1024)
1284                                 mmc->capacity_user = capacity;
1285                 }
1286
1287                 switch (ext_csd[EXT_CSD_REV]) {
1288                 case 1:
1289                         mmc->version = MMC_VERSION_4_1;
1290                         break;
1291                 case 2:
1292                         mmc->version = MMC_VERSION_4_2;
1293                         break;
1294                 case 3:
1295                         mmc->version = MMC_VERSION_4_3;
1296                         break;
1297                 case 5:
1298                         mmc->version = MMC_VERSION_4_41;
1299                         break;
1300                 case 6:
1301                         mmc->version = MMC_VERSION_4_5;
1302                         break;
1303                 case 7:
1304                         mmc->version = MMC_VERSION_5_0;
1305                         break;
1306                 case 8:
1307                         mmc->version = MMC_VERSION_5_1;
1308                         break;
1309                 }
1310
1311                 /* The partition data may be non-zero but it is only
1312                  * effective if PARTITION_SETTING_COMPLETED is set in
1313                  * EXT_CSD, so ignore any data if this bit is not set,
1314                  * except for enabling the high-capacity group size
1315                  * definition (see below). */
1316                 part_completed = !!(ext_csd[EXT_CSD_PARTITION_SETTING] &
1317                                     EXT_CSD_PARTITION_SETTING_COMPLETED);
1318
1319                 /* store the partition info of emmc */
1320                 mmc->part_support = ext_csd[EXT_CSD_PARTITIONING_SUPPORT];
1321                 if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) ||
1322                     ext_csd[EXT_CSD_BOOT_MULT])
1323                         mmc->part_config = ext_csd[EXT_CSD_PART_CONF];
1324                 if (part_completed &&
1325                     (ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & ENHNCD_SUPPORT))
1326                         mmc->part_attr = ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE];
1327
1328                 mmc->capacity_boot = ext_csd[EXT_CSD_BOOT_MULT] << 17;
1329
1330                 mmc->capacity_rpmb = ext_csd[EXT_CSD_RPMB_MULT] << 17;
1331
1332                 for (i = 0; i < 4; i++) {
1333                         int idx = EXT_CSD_GP_SIZE_MULT + i * 3;
1334                         uint mult = (ext_csd[idx + 2] << 16) +
1335                                 (ext_csd[idx + 1] << 8) + ext_csd[idx];
1336                         if (mult)
1337                                 has_parts = true;
1338                         if (!part_completed)
1339                                 continue;
1340                         mmc->capacity_gp[i] = mult;
1341                         mmc->capacity_gp[i] *=
1342                                 ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
1343                         mmc->capacity_gp[i] *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
1344                         mmc->capacity_gp[i] <<= 19;
1345                 }
1346
1347                 if (part_completed) {
1348                         mmc->enh_user_size =
1349                                 (ext_csd[EXT_CSD_ENH_SIZE_MULT+2] << 16) +
1350                                 (ext_csd[EXT_CSD_ENH_SIZE_MULT+1] << 8) +
1351                                 ext_csd[EXT_CSD_ENH_SIZE_MULT];
1352                         mmc->enh_user_size *= ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE];
1353                         mmc->enh_user_size *= ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
1354                         mmc->enh_user_size <<= 19;
1355                         mmc->enh_user_start =
1356                                 (ext_csd[EXT_CSD_ENH_START_ADDR+3] << 24) +
1357                                 (ext_csd[EXT_CSD_ENH_START_ADDR+2] << 16) +
1358                                 (ext_csd[EXT_CSD_ENH_START_ADDR+1] << 8) +
1359                                 ext_csd[EXT_CSD_ENH_START_ADDR];
1360                         if (mmc->high_capacity)
1361                                 mmc->enh_user_start <<= 9;
1362                 }
1363
1364                 /*
1365                  * Host needs to enable ERASE_GRP_DEF bit if device is
1366                  * partitioned. This bit will be lost every time after a reset
1367                  * or power off. This will affect erase size.
1368                  */
1369                 if (part_completed)
1370                         has_parts = true;
1371                 if ((ext_csd[EXT_CSD_PARTITIONING_SUPPORT] & PART_SUPPORT) &&
1372                     (ext_csd[EXT_CSD_PARTITIONS_ATTRIBUTE] & PART_ENH_ATTRIB))
1373                         has_parts = true;
1374                 if (has_parts) {
1375                         err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
1376                                 EXT_CSD_ERASE_GROUP_DEF, 1);
1377
1378                         if (err)
1379                                 return err;
1380                         else
1381                                 ext_csd[EXT_CSD_ERASE_GROUP_DEF] = 1;
1382                 }
1383
1384                 if (ext_csd[EXT_CSD_ERASE_GROUP_DEF] & 0x01) {
1385                         /* Read out group size from ext_csd */
1386                         mmc->erase_grp_size =
1387                                 ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] * 1024;
1388                         /*
1389                          * if high capacity and partition setting completed
1390                          * SEC_COUNT is valid even if it is smaller than 2 GiB
1391                          * JEDEC Standard JESD84-B45, 6.2.4
1392                          */
1393                         if (mmc->high_capacity && part_completed) {
1394                                 capacity = (ext_csd[EXT_CSD_SEC_CNT]) |
1395                                         (ext_csd[EXT_CSD_SEC_CNT + 1] << 8) |
1396                                         (ext_csd[EXT_CSD_SEC_CNT + 2] << 16) |
1397                                         (ext_csd[EXT_CSD_SEC_CNT + 3] << 24);
1398                                 capacity *= MMC_MAX_BLOCK_LEN;
1399                                 mmc->capacity_user = capacity;
1400                         }
1401                 } else {
1402                         /* Calculate the group size from the csd value. */
1403                         int erase_gsz, erase_gmul;
1404                         erase_gsz = (mmc->csd[2] & 0x00007c00) >> 10;
1405                         erase_gmul = (mmc->csd[2] & 0x000003e0) >> 5;
1406                         mmc->erase_grp_size = (erase_gsz + 1)
1407                                 * (erase_gmul + 1);
1408                 }
1409
1410                 mmc->hc_wp_grp_size = 1024
1411                         * ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]
1412                         * ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
1413
1414                 mmc->wr_rel_set = ext_csd[EXT_CSD_WR_REL_SET];
1415         }
1416
1417         err = mmc_set_capacity(mmc, mmc_get_blk_desc(mmc)->hwpart);
1418         if (err)
1419                 return err;
1420
1421         if (IS_SD(mmc))
1422                 err = sd_change_freq(mmc);
1423         else
1424                 err = mmc_change_freq(mmc);
1425
1426         if (err)
1427                 return err;
1428
1429         /* Restrict card's capabilities by what the host can do */
1430         mmc->card_caps &= mmc->cfg->host_caps;
1431
1432         if (IS_SD(mmc)) {
1433                 if (mmc->card_caps & MMC_MODE_4BIT) {
1434                         cmd.cmdidx = MMC_CMD_APP_CMD;
1435                         cmd.resp_type = MMC_RSP_R1;
1436                         cmd.cmdarg = mmc->rca << 16;
1437
1438                         err = mmc_send_cmd(mmc, &cmd, NULL);
1439                         if (err)
1440                                 return err;
1441
1442                         cmd.cmdidx = SD_CMD_APP_SET_BUS_WIDTH;
1443                         cmd.resp_type = MMC_RSP_R1;
1444                         cmd.cmdarg = 2;
1445                         err = mmc_send_cmd(mmc, &cmd, NULL);
1446                         if (err)
1447                                 return err;
1448
1449                         mmc_set_bus_width(mmc, 4);
1450                 }
1451
1452                 err = sd_read_ssr(mmc);
1453                 if (err)
1454                         return err;
1455
1456                 if (mmc->card_caps & MMC_MODE_HS)
1457                         mmc->tran_speed = 50000000;
1458                 else
1459                         mmc->tran_speed = 25000000;
1460         } else if (mmc->version >= MMC_VERSION_4) {
1461                 /* Only version 4 of MMC supports wider bus widths */
1462                 int idx;
1463
1464                 /* An array of possible bus widths in order of preference */
1465                 static unsigned ext_csd_bits[] = {
1466                         EXT_CSD_DDR_BUS_WIDTH_8,
1467                         EXT_CSD_DDR_BUS_WIDTH_4,
1468                         EXT_CSD_BUS_WIDTH_8,
1469                         EXT_CSD_BUS_WIDTH_4,
1470                         EXT_CSD_BUS_WIDTH_1,
1471                 };
1472
1473                 /* An array to map CSD bus widths to host cap bits */
1474                 static unsigned ext_to_hostcaps[] = {
1475                         [EXT_CSD_DDR_BUS_WIDTH_4] =
1476                                 MMC_MODE_DDR_52MHz | MMC_MODE_4BIT,
1477                         [EXT_CSD_DDR_BUS_WIDTH_8] =
1478                                 MMC_MODE_DDR_52MHz | MMC_MODE_8BIT,
1479                         [EXT_CSD_BUS_WIDTH_4] = MMC_MODE_4BIT,
1480                         [EXT_CSD_BUS_WIDTH_8] = MMC_MODE_8BIT,
1481                 };
1482
1483                 /* An array to map chosen bus width to an integer */
1484                 static unsigned widths[] = {
1485                         8, 4, 8, 4, 1,
1486                 };
1487
1488                 for (idx=0; idx < ARRAY_SIZE(ext_csd_bits); idx++) {
1489                         unsigned int extw = ext_csd_bits[idx];
1490                         unsigned int caps = ext_to_hostcaps[extw];
1491
1492                         /*
1493                          * If the bus width is still not changed,
1494                          * don't try to set the default again.
1495                          * Otherwise, recover from switch attempts
1496                          * by switching to 1-bit bus width.
1497                          */
1498                         if (extw == EXT_CSD_BUS_WIDTH_1 &&
1499                                         mmc->bus_width == 1) {
1500                                 err = 0;
1501                                 break;
1502                         }
1503
1504                         /*
1505                          * Check to make sure the card and controller support
1506                          * these capabilities
1507                          */
1508                         if ((mmc->card_caps & caps) != caps)
1509                                 continue;
1510
1511                         err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL,
1512                                         EXT_CSD_BUS_WIDTH, extw);
1513
1514                         if (err)
1515                                 continue;
1516
1517                         mmc->ddr_mode = (caps & MMC_MODE_DDR_52MHz) ? 1 : 0;
1518                         mmc_set_bus_width(mmc, widths[idx]);
1519
1520                         err = mmc_send_ext_csd(mmc, test_csd);
1521
1522                         if (err)
1523                                 continue;
1524
1525                         /* Only compare read only fields */
1526                         if (ext_csd[EXT_CSD_PARTITIONING_SUPPORT]
1527                                 == test_csd[EXT_CSD_PARTITIONING_SUPPORT] &&
1528                             ext_csd[EXT_CSD_HC_WP_GRP_SIZE]
1529                                 == test_csd[EXT_CSD_HC_WP_GRP_SIZE] &&
1530                             ext_csd[EXT_CSD_REV]
1531                                 == test_csd[EXT_CSD_REV] &&
1532                             ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE]
1533                                 == test_csd[EXT_CSD_HC_ERASE_GRP_SIZE] &&
1534                             memcmp(&ext_csd[EXT_CSD_SEC_CNT],
1535                                    &test_csd[EXT_CSD_SEC_CNT], 4) == 0)
1536                                 break;
1537                         else
1538                                 err = -EBADMSG;
1539                 }
1540
1541                 if (err)
1542                         return err;
1543
1544                 if (mmc->card_caps & MMC_MODE_HS) {
1545                         if (mmc->card_caps & MMC_MODE_HS_52MHz)
1546                                 mmc->tran_speed = 52000000;
1547                         else
1548                                 mmc->tran_speed = 26000000;
1549                 }
1550         }
1551
1552         mmc_set_clock(mmc, mmc->tran_speed);
1553
1554         /* Fix the block length for DDR mode */
1555         if (mmc->ddr_mode) {
1556                 mmc->read_bl_len = MMC_MAX_BLOCK_LEN;
1557                 mmc->write_bl_len = MMC_MAX_BLOCK_LEN;
1558         }
1559
1560         /* fill in device description */
1561         bdesc = mmc_get_blk_desc(mmc);
1562         bdesc->lun = 0;
1563         bdesc->hwpart = 0;
1564         bdesc->type = 0;
1565         bdesc->blksz = mmc->read_bl_len;
1566         bdesc->log2blksz = LOG2(bdesc->blksz);
1567         bdesc->lba = lldiv(mmc->capacity, mmc->read_bl_len);
1568 #if !defined(CONFIG_SPL_BUILD) || \
1569                 (defined(CONFIG_SPL_LIBCOMMON_SUPPORT) && \
1570                 !defined(CONFIG_USE_TINY_PRINTF))
1571         sprintf(bdesc->vendor, "Man %06x Snr %04x%04x",
1572                 mmc->cid[0] >> 24, (mmc->cid[2] & 0xffff),
1573                 (mmc->cid[3] >> 16) & 0xffff);
1574         sprintf(bdesc->product, "%c%c%c%c%c%c", mmc->cid[0] & 0xff,
1575                 (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
1576                 (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff,
1577                 (mmc->cid[2] >> 24) & 0xff);
1578         sprintf(bdesc->revision, "%d.%d", (mmc->cid[2] >> 20) & 0xf,
1579                 (mmc->cid[2] >> 16) & 0xf);
1580 #else
1581         bdesc->vendor[0] = 0;
1582         bdesc->product[0] = 0;
1583         bdesc->revision[0] = 0;
1584 #endif
1585 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBDISK_SUPPORT)
1586         part_init(bdesc);
1587 #endif
1588
1589         return 0;
1590 }
1591
1592 static int mmc_send_if_cond(struct mmc *mmc)
1593 {
1594         struct mmc_cmd cmd;
1595         int err;
1596
1597         cmd.cmdidx = SD_CMD_SEND_IF_COND;
1598         /* We set the bit if the host supports voltages between 2.7 and 3.6 V */
1599         cmd.cmdarg = ((mmc->cfg->voltages & 0xff8000) != 0) << 8 | 0xaa;
1600         cmd.resp_type = MMC_RSP_R7;
1601
1602         err = mmc_send_cmd(mmc, &cmd, NULL);
1603
1604         if (err)
1605                 return err;
1606
1607         if ((cmd.response[0] & 0xff) != 0xaa)
1608                 return -EOPNOTSUPP;
1609         else
1610                 mmc->version = SD_VERSION_2;
1611
1612         return 0;
1613 }
1614
1615 /* board-specific MMC power initializations. */
1616 __weak void board_mmc_power_init(void)
1617 {
1618 }
1619
1620 static int mmc_power_init(struct mmc *mmc)
1621 {
1622         board_mmc_power_init();
1623
1624 #if defined(CONFIG_DM_MMC) && defined(CONFIG_DM_REGULATOR) && \
1625         !defined(CONFIG_SPL_BUILD)
1626         struct udevice *vmmc_supply;
1627         int ret;
1628
1629         ret = device_get_supply_regulator(mmc->dev, "vmmc-supply",
1630                                           &vmmc_supply);
1631         if (ret) {
1632                 debug("%s: No vmmc supply\n", mmc->dev->name);
1633                 return 0;
1634         }
1635
1636         ret = regulator_set_enable(vmmc_supply, true);
1637         if (ret) {
1638                 puts("Error enabling VMMC supply\n");
1639                 return ret;
1640         }
1641 #endif
1642         return 0;
1643 }
1644
1645 int mmc_start_init(struct mmc *mmc)
1646 {
1647         bool no_card;
1648         int err;
1649
1650         /* we pretend there's no card when init is NULL */
1651         no_card = mmc_getcd(mmc) == 0;
1652 #ifndef CONFIG_DM_MMC_OPS
1653         no_card = no_card || (mmc->cfg->ops->init == NULL);
1654 #endif
1655         if (no_card) {
1656                 mmc->has_init = 0;
1657 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
1658                 printf("MMC: no card present\n");
1659 #endif
1660                 return -ENOMEDIUM;
1661         }
1662
1663         if (mmc->has_init)
1664                 return 0;
1665
1666 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
1667         mmc_adapter_card_type_ident();
1668 #endif
1669         err = mmc_power_init(mmc);
1670         if (err)
1671                 return err;
1672
1673 #ifdef CONFIG_DM_MMC_OPS
1674         /* The device has already been probed ready for use */
1675 #else
1676         /* made sure it's not NULL earlier */
1677         err = mmc->cfg->ops->init(mmc);
1678         if (err)
1679                 return err;
1680 #endif
1681         mmc->ddr_mode = 0;
1682         mmc_set_bus_width(mmc, 1);
1683         mmc_set_clock(mmc, 1);
1684
1685         /* Reset the Card */
1686         err = mmc_go_idle(mmc);
1687
1688         if (err)
1689                 return err;
1690
1691         /* The internal partition reset to user partition(0) at every CMD0*/
1692         mmc_get_blk_desc(mmc)->hwpart = 0;
1693
1694         /* Test for SD version 2 */
1695         err = mmc_send_if_cond(mmc);
1696
1697         /* Now try to get the SD card's operating condition */
1698         err = sd_send_op_cond(mmc);
1699
1700         /* If the command timed out, we check for an MMC card */
1701         if (err == -ETIMEDOUT) {
1702                 err = mmc_send_op_cond(mmc);
1703
1704                 if (err) {
1705 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT)
1706                         printf("Card did not respond to voltage select!\n");
1707 #endif
1708                         return -EOPNOTSUPP;
1709                 }
1710         }
1711
1712         if (!err)
1713                 mmc->init_in_progress = 1;
1714
1715         return err;
1716 }
1717
1718 static int mmc_complete_init(struct mmc *mmc)
1719 {
1720         int err = 0;
1721
1722         mmc->init_in_progress = 0;
1723         if (mmc->op_cond_pending)
1724                 err = mmc_complete_op_cond(mmc);
1725
1726         if (!err)
1727                 err = mmc_startup(mmc);
1728         if (err)
1729                 mmc->has_init = 0;
1730         else
1731                 mmc->has_init = 1;
1732         return err;
1733 }
1734
1735 int mmc_init(struct mmc *mmc)
1736 {
1737         int err = 0;
1738         __maybe_unused unsigned start;
1739 #ifdef CONFIG_DM_MMC
1740         struct mmc_uclass_priv *upriv = dev_get_uclass_priv(mmc->dev);
1741
1742         upriv->mmc = mmc;
1743 #endif
1744         if (mmc->has_init)
1745                 return 0;
1746
1747         start = get_timer(0);
1748
1749         if (!mmc->init_in_progress)
1750                 err = mmc_start_init(mmc);
1751
1752         if (!err)
1753                 err = mmc_complete_init(mmc);
1754         if (err)
1755                 printf("%s: %d, time %lu\n", __func__, err, get_timer(start));
1756
1757         return err;
1758 }
1759
1760 int mmc_set_dsr(struct mmc *mmc, u16 val)
1761 {
1762         mmc->dsr = val;
1763         return 0;
1764 }
1765
1766 /* CPU-specific MMC initializations */
1767 __weak int cpu_mmc_init(bd_t *bis)
1768 {
1769         return -1;
1770 }
1771
1772 /* board-specific MMC initializations. */
1773 __weak int board_mmc_init(bd_t *bis)
1774 {
1775         return -1;
1776 }
1777
1778 void mmc_set_preinit(struct mmc *mmc, int preinit)
1779 {
1780         mmc->preinit = preinit;
1781 }
1782
1783 #if defined(CONFIG_DM_MMC) && defined(CONFIG_SPL_BUILD)
1784 static int mmc_probe(bd_t *bis)
1785 {
1786         return 0;
1787 }
1788 #elif defined(CONFIG_DM_MMC)
1789 static int mmc_probe(bd_t *bis)
1790 {
1791         int ret, i;
1792         struct uclass *uc;
1793         struct udevice *dev;
1794
1795         ret = uclass_get(UCLASS_MMC, &uc);
1796         if (ret)
1797                 return ret;
1798
1799         /*
1800          * Try to add them in sequence order. Really with driver model we
1801          * should allow holes, but the current MMC list does not allow that.
1802          * So if we request 0, 1, 3 we will get 0, 1, 2.
1803          */
1804         for (i = 0; ; i++) {
1805                 ret = uclass_get_device_by_seq(UCLASS_MMC, i, &dev);
1806                 if (ret == -ENODEV)
1807                         break;
1808         }
1809         uclass_foreach_dev(dev, uc) {
1810                 ret = device_probe(dev);
1811                 if (ret)
1812                         printf("%s - probe failed: %d\n", dev->name, ret);
1813         }
1814
1815         return 0;
1816 }
1817 #else
1818 static int mmc_probe(bd_t *bis)
1819 {
1820         if (board_mmc_init(bis) < 0)
1821                 cpu_mmc_init(bis);
1822
1823         return 0;
1824 }
1825 #endif
1826
1827 int mmc_initialize(bd_t *bis)
1828 {
1829         static int initialized = 0;
1830         int ret;
1831         if (initialized)        /* Avoid initializing mmc multiple times */
1832                 return 0;
1833         initialized = 1;
1834
1835 #ifndef CONFIG_BLK
1836 #if !CONFIG_IS_ENABLED(MMC_TINY)
1837         mmc_list_init();
1838 #endif
1839 #endif
1840         ret = mmc_probe(bis);
1841         if (ret)
1842                 return ret;
1843
1844 #ifndef CONFIG_SPL_BUILD
1845         print_mmc_devices(',');
1846 #endif
1847
1848         mmc_do_preinit();
1849         return 0;
1850 }
1851
1852 #ifdef CONFIG_CMD_BKOPS_ENABLE
1853 int mmc_set_bkops_enable(struct mmc *mmc)
1854 {
1855         int err;
1856         ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
1857
1858         err = mmc_send_ext_csd(mmc, ext_csd);
1859         if (err) {
1860                 puts("Could not get ext_csd register values\n");
1861                 return err;
1862         }
1863
1864         if (!(ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1)) {
1865                 puts("Background operations not supported on device\n");
1866                 return -EMEDIUMTYPE;
1867         }
1868
1869         if (ext_csd[EXT_CSD_BKOPS_EN] & 0x1) {
1870                 puts("Background operations already enabled\n");
1871                 return 0;
1872         }
1873
1874         err = mmc_switch(mmc, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BKOPS_EN, 1);
1875         if (err) {
1876                 puts("Failed to enable manual background operations\n");
1877                 return err;
1878         }
1879
1880         puts("Enabled manual background operations\n");
1881
1882         return 0;
1883 }
1884 #endif