cmd/mmc.c

   1 /*
   2  * (C) Copyright 2003
   3  * Kyle Harris, kharris@nexus-tech.net
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <command.h>
  10 #include <console.h>
  11 #include <mmc.h>
  12
  13 static int curr_device = -1;
  14
  15 static void print_mmcinfo(struct mmc *mmc)
  16 {
  17         int i;
  18
  19         printf("Device: %s\n", mmc->cfg->name);
  20         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
  21         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
  22         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
  23                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
  24                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
  25
  26         printf("Tran Speed: %d\n", mmc->tran_speed);
  27         printf("Rd Block Len: %d\n", mmc->read_bl_len);
  28
  29         printf("%s version %d.%d", IS_SD(mmc) ? "SD" : "MMC",
  30                         EXTRACT_SDMMC_MAJOR_VERSION(mmc->version),
  31                         EXTRACT_SDMMC_MINOR_VERSION(mmc->version));
  32         if (EXTRACT_SDMMC_CHANGE_VERSION(mmc->version) != 0)
  33                 printf(".%d", EXTRACT_SDMMC_CHANGE_VERSION(mmc->version));
  34         printf("\n");
  35
  36         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
  37         puts("Capacity: ");
  38         print_size(mmc->capacity, "\n");
  39
  40         printf("Bus Width: %d-bit%s\n", mmc->bus_width,
  41                         mmc->ddr_mode ? " DDR" : "");
  42
  43         puts("Erase Group Size: ");
  44         print_size(((u64)mmc->erase_grp_size) << 9, "\n");
  45
  46         if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
  47                 bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
  48                 bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);
  49
  50                 puts("HC WP Group Size: ");
  51                 print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");
  52
  53                 puts("User Capacity: ");
  54                 print_size(mmc->capacity_user, usr_enh ? " ENH" : "");
  55                 if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_USR)
  56                         puts(" WRREL\n");
  57                 else
  58                         putc('\n');
  59                 if (usr_enh) {
  60                         puts("User Enhanced Start: ");
  61                         print_size(mmc->enh_user_start, "\n");
  62                         puts("User Enhanced Size: ");
  63                         print_size(mmc->enh_user_size, "\n");
  64                 }
  65                 puts("Boot Capacity: ");
  66                 print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
  67                 puts("RPMB Capacity: ");
  68                 print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");
  69
  70                 for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
  71                         bool is_enh = has_enh &&
  72                                 (mmc->part_attr & EXT_CSD_ENH_GP(i));
  73                         if (mmc->capacity_gp[i]) {
  74                                 printf("GP%i Capacity: ", i+1);
  75                                 print_size(mmc->capacity_gp[i],
  76                                            is_enh ? " ENH" : "");
  77                                 if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_GP(i))
  78                                         puts(" WRREL\n");
  79                                 else
  80                                         putc('\n');
  81                         }
  82                 }
  83         }
  84 }
  85 static struct mmc *init_mmc_device(int dev, bool force_init)
  86 {
  87         struct mmc *mmc;
  88         mmc = find_mmc_device(dev);
  89         if (!mmc) {
  90                 printf("no mmc device at slot %x\n", dev);
  91                 return NULL;
  92         }
  93
  94         if (force_init)
  95                 mmc->has_init = 0;
  96         if (mmc_init(mmc))
  97                 return NULL;
  98         return mmc;
  99 }
 100 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 101 {
 102         struct mmc *mmc;
 103
 104         if (curr_device < 0) {
 105                 if (get_mmc_num() > 0)
 106                         curr_device = 0;
 107                 else {
 108                         puts("No MMC device available\n");
 109                         return 1;
 110                 }
 111         }
 112
 113         mmc = init_mmc_device(curr_device, false);
 114         if (!mmc)
 115                 return CMD_RET_FAILURE;
 116
 117         print_mmcinfo(mmc);
 118         return CMD_RET_SUCCESS;
 119 }
 120
 121 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 122 static int confirm_key_prog(void)
 123 {
 124         puts("Warning: Programming authentication key can be done only once !\n"
 125              "         Use this command only if you are sure of what you are doing,\n"
 126              "Really perform the key programming? <y/N> ");
 127         if (confirm_yesno())
 128                 return 1;
 129
 130         puts("Authentication key programming aborted\n");
 131         return 0;
 132 }
 133 static int do_mmcrpmb_key(cmd_tbl_t *cmdtp, int flag,
 134                           int argc, char * const argv[])
 135 {
 136         void *key_addr;
 137         struct mmc *mmc = find_mmc_device(curr_device);
 138
 139         if (argc != 2)
 140                 return CMD_RET_USAGE;
 141
 142         key_addr = (void *)simple_strtoul(argv[1], NULL, 16);
 143         if (!confirm_key_prog())
 144                 return CMD_RET_FAILURE;
 145         if (mmc_rpmb_set_key(mmc, key_addr)) {
 146                 printf("ERROR - Key already programmed ?\n");
 147                 return CMD_RET_FAILURE;
 148         }
 149         return CMD_RET_SUCCESS;
 150 }
 151 static int do_mmcrpmb_read(cmd_tbl_t *cmdtp, int flag,
 152                            int argc, char * const argv[])
 153 {
 154         u16 blk, cnt;
 155         void *addr;
 156         int n;
 157         void *key_addr = NULL;
 158         struct mmc *mmc = find_mmc_device(curr_device);
 159
 160         if (argc < 4)
 161                 return CMD_RET_USAGE;
 162
 163         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 164         blk = simple_strtoul(argv[2], NULL, 16);
 165         cnt = simple_strtoul(argv[3], NULL, 16);
 166
 167         if (argc == 5)
 168                 key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
 169
 170         printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
 171                curr_device, blk, cnt);
 172         n =  mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);
 173
 174         printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 175         if (n != cnt)
 176                 return CMD_RET_FAILURE;
 177         return CMD_RET_SUCCESS;
 178 }
 179 static int do_mmcrpmb_write(cmd_tbl_t *cmdtp, int flag,
 180                             int argc, char * const argv[])
 181 {
 182         u16 blk, cnt;
 183         void *addr;
 184         int n;
 185         void *key_addr;
 186         struct mmc *mmc = find_mmc_device(curr_device);
 187
 188         if (argc != 5)
 189                 return CMD_RET_USAGE;
 190
 191         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 192         blk = simple_strtoul(argv[2], NULL, 16);
 193         cnt = simple_strtoul(argv[3], NULL, 16);
 194         key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
 195
 196         printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
 197                curr_device, blk, cnt);
 198         n =  mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);
 199
 200         printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 201         if (n != cnt)
 202                 return CMD_RET_FAILURE;
 203         return CMD_RET_SUCCESS;
 204 }
 205 static int do_mmcrpmb_counter(cmd_tbl_t *cmdtp, int flag,
 206                               int argc, char * const argv[])
 207 {
 208         unsigned long counter;
 209         struct mmc *mmc = find_mmc_device(curr_device);
 210
 211         if (mmc_rpmb_get_counter(mmc, &counter))
 212                 return CMD_RET_FAILURE;
 213         printf("RPMB Write counter= %lx\n", counter);
 214         return CMD_RET_SUCCESS;
 215 }
 216
 217 static cmd_tbl_t cmd_rpmb[] = {
 218         U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
 219         U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
 220         U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
 221         U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
 222 };
 223
 224 static int do_mmcrpmb(cmd_tbl_t *cmdtp, int flag,
 225                       int argc, char * const argv[])
 226 {
 227         cmd_tbl_t *cp;
 228         struct mmc *mmc;
 229         char original_part;
 230         int ret;
 231
 232         cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));
 233
 234         /* Drop the rpmb subcommand */
 235         argc--;
 236         argv++;
 237
 238         if (cp == NULL || argc > cp->maxargs)
 239                 return CMD_RET_USAGE;
 240         if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
 241                 return CMD_RET_SUCCESS;
 242
 243         mmc = init_mmc_device(curr_device, false);
 244         if (!mmc)
 245                 return CMD_RET_FAILURE;
 246
 247         if (!(mmc->version & MMC_VERSION_MMC)) {
 248                 printf("It is not a EMMC device\n");
 249                 return CMD_RET_FAILURE;
 250         }
 251         if (mmc->version < MMC_VERSION_4_41) {
 252                 printf("RPMB not supported before version 4.41\n");
 253                 return CMD_RET_FAILURE;
 254         }
 255         /* Switch to the RPMB partition */
 256         original_part = mmc->block_dev.hwpart;
 257         if (blk_select_hwpart_devnum(IF_TYPE_MMC, curr_device, MMC_PART_RPMB) !=
 258             0)
 259                 return CMD_RET_FAILURE;
 260         ret = cp->cmd(cmdtp, flag, argc, argv);
 261
 262         /* Return to original partition */
 263         if (blk_select_hwpart_devnum(IF_TYPE_MMC, curr_device, original_part) !=
 264             0)
 265                 return CMD_RET_FAILURE;
 266         return ret;
 267 }
 268 #endif
 269
 270 static int do_mmc_read(cmd_tbl_t *cmdtp, int flag,
 271                        int argc, char * const argv[])
 272 {
 273         struct mmc *mmc;
 274         u32 blk, cnt, n;
 275         void *addr;
 276
 277         if (argc != 4)
 278                 return CMD_RET_USAGE;
 279
 280         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 281         blk = simple_strtoul(argv[2], NULL, 16);
 282         cnt = simple_strtoul(argv[3], NULL, 16);
 283
 284         mmc = init_mmc_device(curr_device, false);
 285         if (!mmc)
 286                 return CMD_RET_FAILURE;
 287
 288         printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 289                curr_device, blk, cnt);
 290
 291         n = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, addr);
 292         /* flush cache after read */
 293         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 294         printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 295
 296         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 297 }
 298 static int do_mmc_write(cmd_tbl_t *cmdtp, int flag,
 299                         int argc, char * const argv[])
 300 {
 301         struct mmc *mmc;
 302         u32 blk, cnt, n;
 303         void *addr;
 304
 305         if (argc != 4)
 306                 return CMD_RET_USAGE;
 307
 308         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 309         blk = simple_strtoul(argv[2], NULL, 16);
 310         cnt = simple_strtoul(argv[3], NULL, 16);
 311
 312         mmc = init_mmc_device(curr_device, false);
 313         if (!mmc)
 314                 return CMD_RET_FAILURE;
 315
 316         printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 317                curr_device, blk, cnt);
 318
 319         if (mmc_getwp(mmc) == 1) {
 320                 printf("Error: card is write protected!\n");
 321                 return CMD_RET_FAILURE;
 322         }
 323         n = blk_dwrite(mmc_get_blk_desc(mmc), blk, cnt, addr);
 324         printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 325
 326         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 327 }
 328 static int do_mmc_erase(cmd_tbl_t *cmdtp, int flag,
 329                         int argc, char * const argv[])
 330 {
 331         struct mmc *mmc;
 332         u32 blk, cnt, n;
 333
 334         if (argc != 3)
 335                 return CMD_RET_USAGE;
 336
 337         blk = simple_strtoul(argv[1], NULL, 16);
 338         cnt = simple_strtoul(argv[2], NULL, 16);
 339
 340         mmc = init_mmc_device(curr_device, false);
 341         if (!mmc)
 342                 return CMD_RET_FAILURE;
 343
 344         printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
 345                curr_device, blk, cnt);
 346
 347         if (mmc_getwp(mmc) == 1) {
 348                 printf("Error: card is write protected!\n");
 349                 return CMD_RET_FAILURE;
 350         }
 351         n = blk_derase(mmc_get_blk_desc(mmc), blk, cnt);
 352         printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 353
 354         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 355 }
 356 static int do_mmc_rescan(cmd_tbl_t *cmdtp, int flag,
 357                          int argc, char * const argv[])
 358 {
 359         struct mmc *mmc;
 360
 361         mmc = init_mmc_device(curr_device, true);
 362         if (!mmc)
 363                 return CMD_RET_FAILURE;
 364
 365         return CMD_RET_SUCCESS;
 366 }
 367 static int do_mmc_part(cmd_tbl_t *cmdtp, int flag,
 368                        int argc, char * const argv[])
 369 {
 370         struct blk_desc *mmc_dev;
 371         struct mmc *mmc;
 372
 373         mmc = init_mmc_device(curr_device, false);
 374         if (!mmc)
 375                 return CMD_RET_FAILURE;
 376
 377         mmc_dev = blk_get_devnum_by_type(IF_TYPE_MMC, curr_device);
 378         if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
 379                 part_print(mmc_dev);
 380                 return CMD_RET_SUCCESS;
 381         }
 382
 383         puts("get mmc type error!\n");
 384         return CMD_RET_FAILURE;
 385 }
 386 static int do_mmc_dev(cmd_tbl_t *cmdtp, int flag,
 387                       int argc, char * const argv[])
 388 {
 389         int dev, part = 0, ret;
 390         struct mmc *mmc;
 391
 392         if (argc == 1) {
 393                 dev = curr_device;
 394         } else if (argc == 2) {
 395                 dev = simple_strtoul(argv[1], NULL, 10);
 396         } else if (argc == 3) {
 397                 dev = (int)simple_strtoul(argv[1], NULL, 10);
 398                 part = (int)simple_strtoul(argv[2], NULL, 10);
 399                 if (part > PART_ACCESS_MASK) {
 400                         printf("#part_num shouldn't be larger than %d\n",
 401                                PART_ACCESS_MASK);
 402                         return CMD_RET_FAILURE;
 403                 }
 404         } else {
 405                 return CMD_RET_USAGE;
 406         }
 407
 408         mmc = init_mmc_device(dev, true);
 409         if (!mmc)
 410                 return CMD_RET_FAILURE;
 411
 412         ret = blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part);
 413         printf("switch to partitions #%d, %s\n",
 414                part, (!ret) ? "OK" : "ERROR");
 415         if (ret)
 416                 return 1;
 417
 418         curr_device = dev;
 419         if (mmc->part_config == MMCPART_NOAVAILABLE)
 420                 printf("mmc%d is current device\n", curr_device);
 421         else
 422                 printf("mmc%d(part %d) is current device\n",
 423                        curr_device, mmc_get_blk_desc(mmc)->hwpart);
 424
 425         return CMD_RET_SUCCESS;
 426 }
 427 static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
 428                        int argc, char * const argv[])
 429 {
 430         print_mmc_devices('\n');
 431         return CMD_RET_SUCCESS;
 432 }
 433
 434 static int parse_hwpart_user(struct mmc_hwpart_conf *pconf,
 435                              int argc, char * const argv[])
 436 {
 437         int i = 0;
 438
 439         memset(&pconf->user, 0, sizeof(pconf->user));
 440
 441         while (i < argc) {
 442                 if (!strcmp(argv[i], "enh")) {
 443                         if (i + 2 >= argc)
 444                                 return -1;
 445                         pconf->user.enh_start =
 446                                 simple_strtoul(argv[i+1], NULL, 10);
 447                         pconf->user.enh_size =
 448                                 simple_strtoul(argv[i+2], NULL, 10);
 449                         i += 3;
 450                 } else if (!strcmp(argv[i], "wrrel")) {
 451                         if (i + 1 >= argc)
 452                                 return -1;
 453                         pconf->user.wr_rel_change = 1;
 454                         if (!strcmp(argv[i+1], "on"))
 455                                 pconf->user.wr_rel_set = 1;
 456                         else if (!strcmp(argv[i+1], "off"))
 457                                 pconf->user.wr_rel_set = 0;
 458                         else
 459                                 return -1;
 460                         i += 2;
 461                 } else {
 462                         break;
 463                 }
 464         }
 465         return i;
 466 }
 467
 468 static int parse_hwpart_gp(struct mmc_hwpart_conf *pconf, int pidx,
 469                            int argc, char * const argv[])
 470 {
 471         int i;
 472
 473         memset(&pconf->gp_part[pidx], 0, sizeof(pconf->gp_part[pidx]));
 474
 475         if (1 >= argc)
 476                 return -1;
 477         pconf->gp_part[pidx].size = simple_strtoul(argv[0], NULL, 10);
 478
 479         i = 1;
 480         while (i < argc) {
 481                 if (!strcmp(argv[i], "enh")) {
 482                         pconf->gp_part[pidx].enhanced = 1;
 483                         i += 1;
 484                 } else if (!strcmp(argv[i], "wrrel")) {
 485                         if (i + 1 >= argc)
 486                                 return -1;
 487                         pconf->gp_part[pidx].wr_rel_change = 1;
 488                         if (!strcmp(argv[i+1], "on"))
 489                                 pconf->gp_part[pidx].wr_rel_set = 1;
 490                         else if (!strcmp(argv[i+1], "off"))
 491                                 pconf->gp_part[pidx].wr_rel_set = 0;
 492                         else
 493                                 return -1;
 494                         i += 2;
 495                 } else {
 496                         break;
 497                 }
 498         }
 499         return i;
 500 }
 501
 502 static int do_mmc_hwpartition(cmd_tbl_t *cmdtp, int flag,
 503                               int argc, char * const argv[])
 504 {
 505         struct mmc *mmc;
 506         struct mmc_hwpart_conf pconf = { };
 507         enum mmc_hwpart_conf_mode mode = MMC_HWPART_CONF_CHECK;
 508         int i, r, pidx;
 509
 510         mmc = init_mmc_device(curr_device, false);
 511         if (!mmc)
 512                 return CMD_RET_FAILURE;
 513
 514         if (argc < 1)
 515                 return CMD_RET_USAGE;
 516         i = 1;
 517         while (i < argc) {
 518                 if (!strcmp(argv[i], "user")) {
 519                         i++;
 520                         r = parse_hwpart_user(&pconf, argc-i, &argv[i]);
 521                         if (r < 0)
 522                                 return CMD_RET_USAGE;
 523                         i += r;
 524                 } else if (!strncmp(argv[i], "gp", 2) &&
 525                            strlen(argv[i]) == 3 &&
 526                            argv[i][2] >= '1' && argv[i][2] <= '4') {
 527                         pidx = argv[i][2] - '1';
 528                         i++;
 529                         r = parse_hwpart_gp(&pconf, pidx, argc-i, &argv[i]);
 530                         if (r < 0)
 531                                 return CMD_RET_USAGE;
 532                         i += r;
 533                 } else if (!strcmp(argv[i], "check")) {
 534                         mode = MMC_HWPART_CONF_CHECK;
 535                         i++;
 536                 } else if (!strcmp(argv[i], "set")) {
 537                         mode = MMC_HWPART_CONF_SET;
 538                         i++;
 539                 } else if (!strcmp(argv[i], "complete")) {
 540                         mode = MMC_HWPART_CONF_COMPLETE;
 541                         i++;
 542                 } else {
 543                         return CMD_RET_USAGE;
 544                 }
 545         }
 546
 547         puts("Partition configuration:\n");
 548         if (pconf.user.enh_size) {
 549                 puts("\tUser Enhanced Start: ");
 550                 print_size(((u64)pconf.user.enh_start) << 9, "\n");
 551                 puts("\tUser Enhanced Size: ");
 552                 print_size(((u64)pconf.user.enh_size) << 9, "\n");
 553         } else {
 554                 puts("\tNo enhanced user data area\n");
 555         }
 556         if (pconf.user.wr_rel_change)
 557                 printf("\tUser partition write reliability: %s\n",
 558                        pconf.user.wr_rel_set ? "on" : "off");
 559         for (pidx = 0; pidx < 4; pidx++) {
 560                 if (pconf.gp_part[pidx].size) {
 561                         printf("\tGP%i Capacity: ", pidx+1);
 562                         print_size(((u64)pconf.gp_part[pidx].size) << 9,
 563                                    pconf.gp_part[pidx].enhanced ?
 564                                    " ENH\n" : "\n");
 565                 } else {
 566                         printf("\tNo GP%i partition\n", pidx+1);
 567                 }
 568                 if (pconf.gp_part[pidx].wr_rel_change)
 569                         printf("\tGP%i write reliability: %s\n", pidx+1,
 570                                pconf.gp_part[pidx].wr_rel_set ? "on" : "off");
 571         }
 572
 573         if (!mmc_hwpart_config(mmc, &pconf, mode)) {
 574                 if (mode == MMC_HWPART_CONF_COMPLETE)
 575                         puts("Partitioning successful, "
 576                              "power-cycle to make effective\n");
 577                 return CMD_RET_SUCCESS;
 578         } else {
 579                 puts("Failed!\n");
 580                 return CMD_RET_FAILURE;
 581         }
 582 }
 583
 584 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 585 static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
 586                           int argc, char * const argv[])
 587 {
 588         int dev;
 589         struct mmc *mmc;
 590         u8 width, reset, mode;
 591
 592         if (argc != 5)
 593                 return CMD_RET_USAGE;
 594         dev = simple_strtoul(argv[1], NULL, 10);
 595         width = simple_strtoul(argv[2], NULL, 10);
 596         reset = simple_strtoul(argv[3], NULL, 10);
 597         mode = simple_strtoul(argv[4], NULL, 10);
 598
 599         mmc = init_mmc_device(dev, false);
 600         if (!mmc)
 601                 return CMD_RET_FAILURE;
 602
 603         if (IS_SD(mmc)) {
 604                 puts("BOOT_BUS_WIDTH only exists on eMMC\n");
 605                 return CMD_RET_FAILURE;
 606         }
 607
 608         /* acknowledge to be sent during boot operation */
 609         return mmc_set_boot_bus_width(mmc, width, reset, mode);
 610 }
 611 static int do_mmc_boot_resize(cmd_tbl_t *cmdtp, int flag,
 612                               int argc, char * const argv[])
 613 {
 614         int dev;
 615         struct mmc *mmc;
 616         u32 bootsize, rpmbsize;
 617
 618         if (argc != 4)
 619                 return CMD_RET_USAGE;
 620         dev = simple_strtoul(argv[1], NULL, 10);
 621         bootsize = simple_strtoul(argv[2], NULL, 10);
 622         rpmbsize = simple_strtoul(argv[3], NULL, 10);
 623
 624         mmc = init_mmc_device(dev, false);
 625         if (!mmc)
 626                 return CMD_RET_FAILURE;
 627
 628         if (IS_SD(mmc)) {
 629                 printf("It is not a EMMC device\n");
 630                 return CMD_RET_FAILURE;
 631         }
 632
 633         if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
 634                 printf("EMMC boot partition Size change Failed.\n");
 635                 return CMD_RET_FAILURE;
 636         }
 637
 638         printf("EMMC boot partition Size %d MB\n", bootsize);
 639         printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
 640         return CMD_RET_SUCCESS;
 641 }
 642 static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag,
 643                            int argc, char * const argv[])
 644 {
 645         int dev;
 646         struct mmc *mmc;
 647         u8 ack, part_num, access;
 648
 649         if (argc != 5)
 650                 return CMD_RET_USAGE;
 651
 652         dev = simple_strtoul(argv[1], NULL, 10);
 653         ack = simple_strtoul(argv[2], NULL, 10);
 654         part_num = simple_strtoul(argv[3], NULL, 10);
 655         access = simple_strtoul(argv[4], NULL, 10);
 656
 657         mmc = init_mmc_device(dev, false);
 658         if (!mmc)
 659                 return CMD_RET_FAILURE;
 660
 661         if (IS_SD(mmc)) {
 662                 puts("PARTITION_CONFIG only exists on eMMC\n");
 663                 return CMD_RET_FAILURE;
 664         }
 665
 666         /* acknowledge to be sent during boot operation */
 667         return mmc_set_part_conf(mmc, ack, part_num, access);
 668 }
 669 static int do_mmc_rst_func(cmd_tbl_t *cmdtp, int flag,
 670                            int argc, char * const argv[])
 671 {
 672         int dev;
 673         struct mmc *mmc;
 674         u8 enable;
 675
 676         /*
 677          * Set the RST_n_ENABLE bit of RST_n_FUNCTION
 678          * The only valid values are 0x0, 0x1 and 0x2 and writing
 679          * a value of 0x1 or 0x2 sets the value permanently.
 680          */
 681         if (argc != 3)
 682                 return CMD_RET_USAGE;
 683
 684         dev = simple_strtoul(argv[1], NULL, 10);
 685         enable = simple_strtoul(argv[2], NULL, 10);
 686
 687         if (enable > 2) {
 688                 puts("Invalid RST_n_ENABLE value\n");
 689                 return CMD_RET_USAGE;
 690         }
 691
 692         mmc = init_mmc_device(dev, false);
 693         if (!mmc)
 694                 return CMD_RET_FAILURE;
 695
 696         if (IS_SD(mmc)) {
 697                 puts("RST_n_FUNCTION only exists on eMMC\n");
 698                 return CMD_RET_FAILURE;
 699         }
 700
 701         return mmc_set_rst_n_function(mmc, enable);
 702 }
 703 #endif
 704 static int do_mmc_setdsr(cmd_tbl_t *cmdtp, int flag,
 705                          int argc, char * const argv[])
 706 {
 707         struct mmc *mmc;
 708         u32 val;
 709         int ret;
 710
 711         if (argc != 2)
 712                 return CMD_RET_USAGE;
 713         val = simple_strtoul(argv[2], NULL, 16);
 714
 715         mmc = find_mmc_device(curr_device);
 716         if (!mmc) {
 717                 printf("no mmc device at slot %x\n", curr_device);
 718                 return CMD_RET_FAILURE;
 719         }
 720         ret = mmc_set_dsr(mmc, val);
 721         printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
 722         if (!ret) {
 723                 mmc->has_init = 0;
 724                 if (mmc_init(mmc))
 725                         return CMD_RET_FAILURE;
 726                 else
 727                         return CMD_RET_SUCCESS;
 728         }
 729         return ret;
 730 }
 731
 732 static cmd_tbl_t cmd_mmc[] = {
 733         U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
 734         U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
 735         U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
 736         U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
 737         U_BOOT_CMD_MKENT(rescan, 1, 1, do_mmc_rescan, "", ""),
 738         U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
 739         U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
 740         U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
 741         U_BOOT_CMD_MKENT(hwpartition, 28, 0, do_mmc_hwpartition, "", ""),
 742 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 743         U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
 744         U_BOOT_CMD_MKENT(bootpart-resize, 4, 0, do_mmc_boot_resize, "", ""),
 745         U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
 746         U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
 747 #endif
 748 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 749         U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
 750 #endif
 751         U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
 752 };
 753
 754 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 755 {
 756         cmd_tbl_t *cp;
 757
 758         cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));
 759
 760         /* Drop the mmc command */
 761         argc--;
 762         argv++;
 763
 764         if (cp == NULL || argc > cp->maxargs)
 765                 return CMD_RET_USAGE;
 766         if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
 767                 return CMD_RET_SUCCESS;
 768
 769         if (curr_device < 0) {
 770                 if (get_mmc_num() > 0) {
 771                         curr_device = 0;
 772                 } else {
 773                         puts("No MMC device available\n");
 774                         return CMD_RET_FAILURE;
 775                 }
 776         }
 777         return cp->cmd(cmdtp, flag, argc, argv);
 778 }
 779
 780 U_BOOT_CMD(
 781         mmc, 29, 1, do_mmcops,
 782         "MMC sub system",
 783         "info - display info of the current MMC device\n"
 784         "mmc read addr blk# cnt\n"
 785         "mmc write addr blk# cnt\n"
 786         "mmc erase blk# cnt\n"
 787         "mmc rescan\n"
 788         "mmc part - lists available partition on current mmc device\n"
 789         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 790         "mmc list - lists available devices\n"
 791         "mmc hwpartition [args...] - does hardware partitioning\n"
 792         "  arguments (sizes in 512-byte blocks):\n"
 793         "    [user [enh start cnt] [wrrel {on|off}]] - sets user data area attributes\n"
 794         "    [gp1|gp2|gp3|gp4 cnt [enh] [wrrel {on|off}]] - general purpose partition\n"
 795         "    [check|set|complete] - mode, complete set partitioning completed\n"
 796         "  WARNING: Partitioning is a write-once setting once it is set to complete.\n"
 797         "  Power cycling is required to initialize partitions after set to complete.\n"
 798 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 799         "mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
 800         " - Set the BOOT_BUS_WIDTH field of the specified device\n"
 801         "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
 802         " - Change sizes of boot and RPMB partitions of specified device\n"
 803         "mmc partconf dev boot_ack boot_partition partition_access\n"
 804         " - Change the bits of the PARTITION_CONFIG field of the specified device\n"
 805         "mmc rst-function dev value\n"
 806         " - Change the RST_n_FUNCTION field of the specified device\n"
 807         "   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
 808 #endif
 809 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 810         "mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
 811         "mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
 812         "mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
 813         "mmc rpmb counter - read the value of the write counter\n"
 814 #endif
 815         "mmc setdsr <value> - set DSR register value\n"
 816         );
 817
 818 /* Old command kept for compatibility. Same as 'mmc info' */
 819 U_BOOT_CMD(
 820         mmcinfo, 1, 0, do_mmcinfo,
 821         "display MMC info",
 822         "- display info of the current MMC device"
 823 );