common/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 <mmc.h>
  11
  12 static int curr_device = -1;
  13 #ifndef CONFIG_GENERIC_MMC
  14 int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  15 {
  16         int dev;
  17
  18         if (argc < 2)
  19                 return CMD_RET_USAGE;
  20
  21         if (strcmp(argv[1], "init") == 0) {
  22                 if (argc == 2) {
  23                         if (curr_device < 0)
  24                                 dev = 1;
  25                         else
  26                                 dev = curr_device;
  27                 } else if (argc == 3) {
  28                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  29                 } else {
  30                         return CMD_RET_USAGE;
  31                 }
  32
  33                 if (mmc_legacy_init(dev) != 0) {
  34                         puts("No MMC card found\n");
  35                         return 1;
  36                 }
  37
  38                 curr_device = dev;
  39                 printf("mmc%d is available\n", curr_device);
  40         } else if (strcmp(argv[1], "device") == 0) {
  41                 if (argc == 2) {
  42                         if (curr_device < 0) {
  43                                 puts("No MMC device available\n");
  44                                 return 1;
  45                         }
  46                 } else if (argc == 3) {
  47                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  48
  49 #ifdef CONFIG_SYS_MMC_SET_DEV
  50                         if (mmc_set_dev(dev) != 0)
  51                                 return 1;
  52 #endif
  53                         curr_device = dev;
  54                 } else {
  55                         return CMD_RET_USAGE;
  56                 }
  57
  58                 printf("mmc%d is current device\n", curr_device);
  59         } else {
  60                 return CMD_RET_USAGE;
  61         }
  62
  63         return 0;
  64 }
  65
  66 U_BOOT_CMD(
  67         mmc, 3, 1, do_mmc,
  68         "MMC sub-system",
  69         "init [dev] - init MMC sub system\n"
  70         "mmc device [dev] - show or set current device"
  71 );
  72 #else /* !CONFIG_GENERIC_MMC */
  73
  74 static void print_mmcinfo(struct mmc *mmc)
  75 {
  76         printf("Device: %s\n", mmc->cfg->name);
  77         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
  78         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
  79         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
  80                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
  81                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
  82
  83         printf("Tran Speed: %d\n", mmc->tran_speed);
  84         printf("Rd Block Len: %d\n", mmc->read_bl_len);
  85
  86         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
  87                         (mmc->version >> 8) & 0xf, mmc->version & 0xff);
  88
  89         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
  90         puts("Capacity: ");
  91         print_size(mmc->capacity, "\n");
  92
  93         printf("Bus Width: %d-bit\n", mmc->bus_width);
  94 }
  95 static struct mmc *init_mmc_device(int dev)
  96 {
  97         struct mmc *mmc;
  98         mmc = find_mmc_device(dev);
  99         if (!mmc) {
 100                 printf("no mmc device at slot %x\n", dev);
 101                 return NULL;
 102         }
 103         if (mmc_init(mmc))
 104                 return NULL;
 105         return mmc;
 106 }
 107 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 108 {
 109         struct mmc *mmc;
 110
 111         if (curr_device < 0) {
 112                 if (get_mmc_num() > 0)
 113                         curr_device = 0;
 114                 else {
 115                         puts("No MMC device available\n");
 116                         return 1;
 117                 }
 118         }
 119
 120         mmc = init_mmc_device(curr_device);
 121         if (!mmc)
 122                 return CMD_RET_FAILURE;
 123
 124         print_mmcinfo(mmc);
 125         return CMD_RET_SUCCESS;
 126 }
 127
 128 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 129 static int confirm_key_prog(void)
 130 {
 131         puts("Warning: Programming authentication key can be done only once !\n"
 132              "         Use this command only if you are sure of what you are doing,\n"
 133              "Really perform the key programming? <y/N> ");
 134         if (confirm_yesno())
 135                 return 1;
 136
 137         puts("Authentication key programming aborted\n");
 138         return 0;
 139 }
 140 static int do_mmcrpmb_key(cmd_tbl_t *cmdtp, int flag,
 141                           int argc, char * const argv[])
 142 {
 143         void *key_addr;
 144         struct mmc *mmc = find_mmc_device(curr_device);
 145
 146         if (argc != 2)
 147                 return CMD_RET_USAGE;
 148
 149         key_addr = (void *)simple_strtoul(argv[1], NULL, 16);
 150         if (!confirm_key_prog())
 151                 return CMD_RET_FAILURE;
 152         if (mmc_rpmb_set_key(mmc, key_addr)) {
 153                 printf("ERROR - Key already programmed ?\n");
 154                 return CMD_RET_FAILURE;
 155         }
 156         return CMD_RET_SUCCESS;
 157 }
 158 static int do_mmcrpmb_read(cmd_tbl_t *cmdtp, int flag,
 159                            int argc, char * const argv[])
 160 {
 161         u16 blk, cnt;
 162         void *addr;
 163         int n;
 164         void *key_addr = NULL;
 165         struct mmc *mmc = find_mmc_device(curr_device);
 166
 167         if (argc < 4)
 168                 return CMD_RET_USAGE;
 169
 170         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 171         blk = simple_strtoul(argv[2], NULL, 16);
 172         cnt = simple_strtoul(argv[3], NULL, 16);
 173
 174         if (argc == 5)
 175                 key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
 176
 177         printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
 178                curr_device, blk, cnt);
 179         n =  mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);
 180
 181         printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 182         if (n != cnt)
 183                 return CMD_RET_FAILURE;
 184         return CMD_RET_SUCCESS;
 185 }
 186 static int do_mmcrpmb_write(cmd_tbl_t *cmdtp, int flag,
 187                             int argc, char * const argv[])
 188 {
 189         u16 blk, cnt;
 190         void *addr;
 191         int n;
 192         void *key_addr;
 193         struct mmc *mmc = find_mmc_device(curr_device);
 194
 195         if (argc != 5)
 196                 return CMD_RET_USAGE;
 197
 198         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 199         blk = simple_strtoul(argv[2], NULL, 16);
 200         cnt = simple_strtoul(argv[3], NULL, 16);
 201         key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
 202
 203         printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
 204                curr_device, blk, cnt);
 205         n =  mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);
 206
 207         printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 208         if (n != cnt)
 209                 return CMD_RET_FAILURE;
 210         return CMD_RET_SUCCESS;
 211 }
 212 static int do_mmcrpmb_counter(cmd_tbl_t *cmdtp, int flag,
 213                               int argc, char * const argv[])
 214 {
 215         unsigned long counter;
 216         struct mmc *mmc = find_mmc_device(curr_device);
 217
 218         if (mmc_rpmb_get_counter(mmc, &counter))
 219                 return CMD_RET_FAILURE;
 220         printf("RPMB Write counter= %lx\n", counter);
 221         return CMD_RET_SUCCESS;
 222 }
 223
 224 static cmd_tbl_t cmd_rpmb[] = {
 225         U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
 226         U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
 227         U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
 228         U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
 229 };
 230
 231 static int do_mmcrpmb(cmd_tbl_t *cmdtp, int flag,
 232                       int argc, char * const argv[])
 233 {
 234         cmd_tbl_t *cp;
 235         struct mmc *mmc;
 236         char original_part;
 237         int ret;
 238
 239         cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));
 240
 241         /* Drop the rpmb subcommand */
 242         argc--;
 243         argv++;
 244
 245         if (cp == NULL || argc > cp->maxargs)
 246                 return CMD_RET_USAGE;
 247         if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
 248                 return CMD_RET_SUCCESS;
 249
 250         mmc = init_mmc_device(curr_device);
 251         if (!mmc)
 252                 return CMD_RET_FAILURE;
 253
 254         if (!(mmc->version & MMC_VERSION_MMC)) {
 255                 printf("It is not a EMMC device\n");
 256                 return CMD_RET_FAILURE;
 257         }
 258         if (mmc->version < MMC_VERSION_4_41) {
 259                 printf("RPMB not supported before version 4.41\n");
 260                 return CMD_RET_FAILURE;
 261         }
 262         /* Switch to the RPMB partition */
 263         original_part = mmc->part_num;
 264         if (mmc->part_num != MMC_PART_RPMB) {
 265                 if (mmc_switch_part(curr_device, MMC_PART_RPMB) != 0)
 266                         return CMD_RET_FAILURE;
 267                 mmc->part_num = MMC_PART_RPMB;
 268         }
 269         ret = cp->cmd(cmdtp, flag, argc, argv);
 270
 271         /* Return to original partition */
 272         if (mmc->part_num != original_part) {
 273                 if (mmc_switch_part(curr_device, original_part) != 0)
 274                         return CMD_RET_FAILURE;
 275                 mmc->part_num = original_part;
 276         }
 277         return ret;
 278 }
 279 #endif
 280
 281 static int do_mmc_read(cmd_tbl_t *cmdtp, int flag,
 282                        int argc, char * const argv[])
 283 {
 284         struct mmc *mmc;
 285         u32 blk, cnt, n;
 286         void *addr;
 287
 288         if (argc != 4)
 289                 return CMD_RET_USAGE;
 290
 291         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 292         blk = simple_strtoul(argv[2], NULL, 16);
 293         cnt = simple_strtoul(argv[3], NULL, 16);
 294
 295         mmc = init_mmc_device(curr_device);
 296         if (!mmc)
 297                 return CMD_RET_FAILURE;
 298
 299         printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 300                curr_device, blk, cnt);
 301
 302         n = mmc->block_dev.block_read(curr_device, blk, cnt, addr);
 303         /* flush cache after read */
 304         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 305         printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 306
 307         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 308 }
 309 static int do_mmc_write(cmd_tbl_t *cmdtp, int flag,
 310                         int argc, char * const argv[])
 311 {
 312         struct mmc *mmc;
 313         u32 blk, cnt, n;
 314         void *addr;
 315
 316         if (argc != 4)
 317                 return CMD_RET_USAGE;
 318
 319         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 320         blk = simple_strtoul(argv[2], NULL, 16);
 321         cnt = simple_strtoul(argv[3], NULL, 16);
 322
 323         mmc = init_mmc_device(curr_device);
 324         if (!mmc)
 325                 return CMD_RET_FAILURE;
 326
 327         printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 328                curr_device, blk, cnt);
 329
 330         if (mmc_getwp(mmc) == 1) {
 331                 printf("Error: card is write protected!\n");
 332                 return CMD_RET_FAILURE;
 333         }
 334         n = mmc->block_dev.block_write(curr_device, blk, cnt, addr);
 335         printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 336
 337         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 338 }
 339 static int do_mmc_erase(cmd_tbl_t *cmdtp, int flag,
 340                         int argc, char * const argv[])
 341 {
 342         struct mmc *mmc;
 343         u32 blk, cnt, n;
 344
 345         if (argc != 3)
 346                 return CMD_RET_USAGE;
 347
 348         blk = simple_strtoul(argv[1], NULL, 16);
 349         cnt = simple_strtoul(argv[2], NULL, 16);
 350
 351         mmc = init_mmc_device(curr_device);
 352         if (!mmc)
 353                 return CMD_RET_FAILURE;
 354
 355         printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
 356                curr_device, blk, cnt);
 357
 358         if (mmc_getwp(mmc) == 1) {
 359                 printf("Error: card is write protected!\n");
 360                 return CMD_RET_FAILURE;
 361         }
 362         n = mmc->block_dev.block_erase(curr_device, blk, cnt);
 363         printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 364
 365         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 366 }
 367 static int do_mmc_rescan(cmd_tbl_t *cmdtp, int flag,
 368                          int argc, char * const argv[])
 369 {
 370         struct mmc *mmc;
 371
 372         mmc = find_mmc_device(curr_device);
 373         if (!mmc) {
 374                 printf("no mmc device at slot %x\n", curr_device);
 375                 return CMD_RET_FAILURE;
 376         }
 377
 378         mmc->has_init = 0;
 379
 380         if (mmc_init(mmc))
 381                 return CMD_RET_FAILURE;
 382         return CMD_RET_SUCCESS;
 383 }
 384 static int do_mmc_part(cmd_tbl_t *cmdtp, int flag,
 385                        int argc, char * const argv[])
 386 {
 387         block_dev_desc_t *mmc_dev;
 388         struct mmc *mmc;
 389
 390         mmc = init_mmc_device(curr_device);
 391         if (!mmc)
 392                 return CMD_RET_FAILURE;
 393
 394         mmc_dev = mmc_get_dev(curr_device);
 395         if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
 396                 print_part(mmc_dev);
 397                 return CMD_RET_SUCCESS;
 398         }
 399
 400         puts("get mmc type error!\n");
 401         return CMD_RET_FAILURE;
 402 }
 403 static int do_mmc_dev(cmd_tbl_t *cmdtp, int flag,
 404                       int argc, char * const argv[])
 405 {
 406         int dev, part = -1, ret;
 407         struct mmc *mmc;
 408
 409         if (argc == 1) {
 410                 dev = curr_device;
 411         } else if (argc == 2) {
 412                 dev = simple_strtoul(argv[1], NULL, 10);
 413         } else if (argc == 3) {
 414                 dev = (int)simple_strtoul(argv[1], NULL, 10);
 415                 part = (int)simple_strtoul(argv[2], NULL, 10);
 416                 if (part > PART_ACCESS_MASK) {
 417                         printf("#part_num shouldn't be larger than %d\n",
 418                                PART_ACCESS_MASK);
 419                         return CMD_RET_FAILURE;
 420                 }
 421         } else {
 422                 return CMD_RET_USAGE;
 423         }
 424
 425         mmc = init_mmc_device(dev);
 426         if (!mmc)
 427                 return CMD_RET_FAILURE;
 428
 429         if (part != -1) {
 430                 ret = mmc_select_hwpart(dev, part);
 431                 printf("switch to partitions #%d, %s\n",
 432                         part, (!ret) ? "OK" : "ERROR");
 433                 if (ret)
 434                         return 1;
 435         }
 436         curr_device = dev;
 437         if (mmc->part_config == MMCPART_NOAVAILABLE)
 438                 printf("mmc%d is current device\n", curr_device);
 439         else
 440                 printf("mmc%d(part %d) is current device\n",
 441                        curr_device, mmc->part_num);
 442
 443         return CMD_RET_SUCCESS;
 444 }
 445 static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
 446                        int argc, char * const argv[])
 447 {
 448         print_mmc_devices('\n');
 449         return CMD_RET_SUCCESS;
 450 }
 451 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 452 static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
 453                           int argc, char * const argv[])
 454 {
 455         int dev;
 456         struct mmc *mmc;
 457         u8 width, reset, mode;
 458
 459         if (argc != 5)
 460                 return CMD_RET_USAGE;
 461         dev = simple_strtoul(argv[1], NULL, 10);
 462         width = simple_strtoul(argv[2], NULL, 10);
 463         reset = simple_strtoul(argv[3], NULL, 10);
 464         mode = simple_strtoul(argv[4], NULL, 10);
 465
 466         mmc = init_mmc_device(dev);
 467         if (!mmc)
 468                 return CMD_RET_FAILURE;
 469
 470         if (IS_SD(mmc)) {
 471                 puts("BOOT_BUS_WIDTH only exists on eMMC\n");
 472                 return CMD_RET_FAILURE;
 473         }
 474
 475         /* acknowledge to be sent during boot operation */
 476         return mmc_set_boot_bus_width(mmc, width, reset, mode);
 477 }
 478 static int do_mmc_boot_resize(cmd_tbl_t *cmdtp, int flag,
 479                               int argc, char * const argv[])
 480 {
 481         int dev;
 482         struct mmc *mmc;
 483         u32 bootsize, rpmbsize;
 484
 485         if (argc != 4)
 486                 return CMD_RET_USAGE;
 487         dev = simple_strtoul(argv[1], NULL, 10);
 488         bootsize = simple_strtoul(argv[2], NULL, 10);
 489         rpmbsize = simple_strtoul(argv[3], NULL, 10);
 490
 491         mmc = init_mmc_device(dev);
 492         if (!mmc)
 493                 return CMD_RET_FAILURE;
 494
 495         if (IS_SD(mmc)) {
 496                 printf("It is not a EMMC device\n");
 497                 return CMD_RET_FAILURE;
 498         }
 499
 500         if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
 501                 printf("EMMC boot partition Size change Failed.\n");
 502                 return CMD_RET_FAILURE;
 503         }
 504
 505         printf("EMMC boot partition Size %d MB\n", bootsize);
 506         printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
 507         return CMD_RET_SUCCESS;
 508 }
 509 static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag,
 510                            int argc, char * const argv[])
 511 {
 512         int dev;
 513         struct mmc *mmc;
 514         u8 ack, part_num, access;
 515
 516         if (argc != 5)
 517                 return CMD_RET_USAGE;
 518
 519         dev = simple_strtoul(argv[1], NULL, 10);
 520         ack = simple_strtoul(argv[2], NULL, 10);
 521         part_num = simple_strtoul(argv[3], NULL, 10);
 522         access = simple_strtoul(argv[4], NULL, 10);
 523
 524         mmc = init_mmc_device(dev);
 525         if (!mmc)
 526                 return CMD_RET_FAILURE;
 527
 528         if (IS_SD(mmc)) {
 529                 puts("PARTITION_CONFIG only exists on eMMC\n");
 530                 return CMD_RET_FAILURE;
 531         }
 532
 533         /* acknowledge to be sent during boot operation */
 534         return mmc_set_part_conf(mmc, ack, part_num, access);
 535 }
 536 static int do_mmc_rst_func(cmd_tbl_t *cmdtp, int flag,
 537                            int argc, char * const argv[])
 538 {
 539         int dev;
 540         struct mmc *mmc;
 541         u8 enable;
 542
 543         /*
 544          * Set the RST_n_ENABLE bit of RST_n_FUNCTION
 545          * The only valid values are 0x0, 0x1 and 0x2 and writing
 546          * a value of 0x1 or 0x2 sets the value permanently.
 547          */
 548         if (argc != 3)
 549                 return CMD_RET_USAGE;
 550
 551         dev = simple_strtoul(argv[1], NULL, 10);
 552         enable = simple_strtoul(argv[2], NULL, 10);
 553
 554         if (enable > 2 || enable < 0) {
 555                 puts("Invalid RST_n_ENABLE value\n");
 556                 return CMD_RET_USAGE;
 557         }
 558
 559         mmc = init_mmc_device(dev);
 560         if (!mmc)
 561                 return CMD_RET_FAILURE;
 562
 563         if (IS_SD(mmc)) {
 564                 puts("RST_n_FUNCTION only exists on eMMC\n");
 565                 return CMD_RET_FAILURE;
 566         }
 567
 568         return mmc_set_rst_n_function(mmc, enable);
 569 }
 570 #endif
 571 static int do_mmc_setdsr(cmd_tbl_t *cmdtp, int flag,
 572                          int argc, char * const argv[])
 573 {
 574         struct mmc *mmc;
 575         u32 val;
 576         int ret;
 577
 578         if (argc != 2)
 579                 return CMD_RET_USAGE;
 580         val = simple_strtoul(argv[2], NULL, 16);
 581
 582         mmc = find_mmc_device(curr_device);
 583         if (!mmc) {
 584                 printf("no mmc device at slot %x\n", curr_device);
 585                 return CMD_RET_FAILURE;
 586         }
 587         ret = mmc_set_dsr(mmc, val);
 588         printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
 589         if (!ret) {
 590                 mmc->has_init = 0;
 591                 if (mmc_init(mmc))
 592                         return CMD_RET_FAILURE;
 593                 else
 594                         return CMD_RET_SUCCESS;
 595         }
 596         return ret;
 597 }
 598
 599 static cmd_tbl_t cmd_mmc[] = {
 600         U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
 601         U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
 602         U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
 603         U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
 604         U_BOOT_CMD_MKENT(rescan, 1, 1, do_mmc_rescan, "", ""),
 605         U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
 606         U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
 607         U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
 608 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 609         U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
 610         U_BOOT_CMD_MKENT(bootpart-resize, 3, 0, do_mmc_boot_resize, "", ""),
 611         U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
 612         U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
 613 #endif
 614 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 615         U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
 616 #endif
 617         U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
 618 };
 619
 620 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 621 {
 622         cmd_tbl_t *cp;
 623
 624         cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));
 625
 626         /* Drop the mmc command */
 627         argc--;
 628         argv++;
 629
 630         if (cp == NULL || argc > cp->maxargs)
 631                 return CMD_RET_USAGE;
 632         if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
 633                 return CMD_RET_SUCCESS;
 634
 635         if (curr_device < 0) {
 636                 if (get_mmc_num() > 0) {
 637                         curr_device = 0;
 638                 } else {
 639                         puts("No MMC device available\n");
 640                         return CMD_RET_FAILURE;
 641                 }
 642         }
 643         return cp->cmd(cmdtp, flag, argc, argv);
 644 }
 645
 646 U_BOOT_CMD(
 647         mmc, 7, 1, do_mmcops,
 648         "MMC sub system",
 649         "info - display info of the current MMC device\n"
 650         "mmc read addr blk# cnt\n"
 651         "mmc write addr blk# cnt\n"
 652         "mmc erase blk# cnt\n"
 653         "mmc rescan\n"
 654         "mmc part - lists available partition on current mmc device\n"
 655         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 656         "mmc list - lists available devices\n"
 657 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 658         "mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
 659         " - Set the BOOT_BUS_WIDTH field of the specified device\n"
 660         "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
 661         " - Change sizes of boot and RPMB partitions of specified device\n"
 662         "mmc partconf dev boot_ack boot_partition partition_access\n"
 663         " - Change the bits of the PARTITION_CONFIG field of the specified device\n"
 664         "mmc rst-function dev value\n"
 665         " - Change the RST_n_FUNCTION field of the specified device\n"
 666         "   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
 667 #endif
 668 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 669         "mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
 670         "mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
 671         "mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
 672         "mmc rpmb counter - read the value of the write counter\n"
 673 #endif
 674         "mmc setdsr <value> - set DSR register value\n"
 675         );
 676
 677 /* Old command kept for compatibility. Same as 'mmc info' */
 678 U_BOOT_CMD(
 679         mmcinfo, 1, 0, do_mmcinfo,
 680         "display MMC info",
 681         "- display info of the current MMC device"
 682 );
 683
 684 #endif /* !CONFIG_GENERIC_MMC */