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 enum mmc_state {
  75         MMC_INVALID,
  76         MMC_READ,
  77         MMC_WRITE,
  78         MMC_ERASE,
  79 };
  80 static void print_mmcinfo(struct mmc *mmc)
  81 {
  82         printf("Device: %s\n", mmc->cfg->name);
  83         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
  84         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
  85         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
  86                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
  87                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
  88
  89         printf("Tran Speed: %d\n", mmc->tran_speed);
  90         printf("Rd Block Len: %d\n", mmc->read_bl_len);
  91
  92         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
  93                         (mmc->version >> 8) & 0xf, mmc->version & 0xff);
  94
  95         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
  96         puts("Capacity: ");
  97         print_size(mmc->capacity, "\n");
  98
  99         printf("Bus Width: %d-bit\n", mmc->bus_width);
 100 }
 101
 102 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 103 {
 104         struct mmc *mmc;
 105
 106         if (curr_device < 0) {
 107                 if (get_mmc_num() > 0)
 108                         curr_device = 0;
 109                 else {
 110                         puts("No MMC device available\n");
 111                         return 1;
 112                 }
 113         }
 114
 115         mmc = find_mmc_device(curr_device);
 116
 117         if (mmc) {
 118                 mmc_init(mmc);
 119
 120                 print_mmcinfo(mmc);
 121                 return 0;
 122         } else {
 123                 printf("no mmc device at slot %x\n", curr_device);
 124                 return 1;
 125         }
 126 }
 127
 128 U_BOOT_CMD(
 129         mmcinfo, 1, 0, do_mmcinfo,
 130         "display MMC info",
 131         "- display info of the current MMC device"
 132 );
 133
 134 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 135 {
 136         enum mmc_state state;
 137
 138         if (argc < 2)
 139                 return CMD_RET_USAGE;
 140
 141         if (curr_device < 0) {
 142                 if (get_mmc_num() > 0)
 143                         curr_device = 0;
 144                 else {
 145                         puts("No MMC device available\n");
 146                         return 1;
 147                 }
 148         }
 149
 150         if (strcmp(argv[1], "rescan") == 0) {
 151                 struct mmc *mmc;
 152
 153                 if (argc != 2)
 154                         return CMD_RET_USAGE;
 155
 156                 mmc = find_mmc_device(curr_device);
 157                 if (!mmc) {
 158                         printf("no mmc device at slot %x\n", curr_device);
 159                         return 1;
 160                 }
 161
 162                 mmc->has_init = 0;
 163
 164                 if (mmc_init(mmc))
 165                         return 1;
 166                 else
 167                         return 0;
 168         } else if (strcmp(argv[1], "part") == 0) {
 169                 block_dev_desc_t *mmc_dev;
 170                 struct mmc *mmc;
 171
 172                 if (argc != 2)
 173                         return CMD_RET_USAGE;
 174
 175                 mmc = find_mmc_device(curr_device);
 176                 if (!mmc) {
 177                         printf("no mmc device at slot %x\n", curr_device);
 178                         return 1;
 179                 }
 180                 mmc_init(mmc);
 181                 mmc_dev = mmc_get_dev(curr_device);
 182                 if (mmc_dev != NULL &&
 183                                 mmc_dev->type != DEV_TYPE_UNKNOWN) {
 184                         print_part(mmc_dev);
 185                         return 0;
 186                 }
 187
 188                 puts("get mmc type error!\n");
 189                 return 1;
 190         } else if (strcmp(argv[1], "list") == 0) {
 191                 if (argc != 2)
 192                         return CMD_RET_USAGE;
 193                 print_mmc_devices('\n');
 194                 return 0;
 195         } else if (strcmp(argv[1], "dev") == 0) {
 196                 int dev, part = -1;
 197                 struct mmc *mmc;
 198
 199                 if (argc == 2)
 200                         dev = curr_device;
 201                 else if (argc == 3)
 202                         dev = simple_strtoul(argv[2], NULL, 10);
 203                 else if (argc == 4) {
 204                         dev = (int)simple_strtoul(argv[2], NULL, 10);
 205                         part = (int)simple_strtoul(argv[3], NULL, 10);
 206                         if (part > PART_ACCESS_MASK) {
 207                                 printf("#part_num shouldn't be larger"
 208                                         " than %d\n", PART_ACCESS_MASK);
 209                                 return 1;
 210                         }
 211                 } else
 212                         return CMD_RET_USAGE;
 213
 214                 mmc = find_mmc_device(dev);
 215                 if (!mmc) {
 216                         printf("no mmc device at slot %x\n", dev);
 217                         return 1;
 218                 }
 219
 220                 mmc_init(mmc);
 221                 if (part != -1) {
 222                         int ret;
 223                         if (mmc->part_config == MMCPART_NOAVAILABLE) {
 224                                 printf("Card doesn't support part_switch\n");
 225                                 return 1;
 226                         }
 227
 228                         if (part != mmc->part_num) {
 229                                 ret = mmc_switch_part(dev, part);
 230                                 if (!ret)
 231                                         mmc->part_num = part;
 232
 233                                 printf("switch to partitions #%d, %s\n",
 234                                                 part, (!ret) ? "OK" : "ERROR");
 235                         }
 236                 }
 237                 curr_device = dev;
 238                 if (mmc->part_config == MMCPART_NOAVAILABLE)
 239                         printf("mmc%d is current device\n", curr_device);
 240                 else
 241                         printf("mmc%d(part %d) is current device\n",
 242                                 curr_device, mmc->part_num);
 243
 244                 return 0;
 245 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 246         } else if (strcmp(argv[1], "partconf") == 0) {
 247                 int dev;
 248                 struct mmc *mmc;
 249                 u8 ack, part_num, access;
 250
 251                 if (argc == 6) {
 252                         dev = simple_strtoul(argv[2], NULL, 10);
 253                         ack = simple_strtoul(argv[3], NULL, 10);
 254                         part_num = simple_strtoul(argv[4], NULL, 10);
 255                         access = simple_strtoul(argv[5], NULL, 10);
 256                 } else {
 257                         return CMD_RET_USAGE;
 258                 }
 259
 260                 mmc = find_mmc_device(dev);
 261                 if (!mmc) {
 262                         printf("no mmc device at slot %x\n", dev);
 263                         return 1;
 264                 }
 265
 266                 if (IS_SD(mmc)) {
 267                         puts("PARTITION_CONFIG only exists on eMMC\n");
 268                         return 1;
 269                 }
 270
 271                 /* acknowledge to be sent during boot operation */
 272                 return mmc_set_part_conf(mmc, ack, part_num, access);
 273         } else if (strcmp(argv[1], "bootbus") == 0) {
 274                 int dev;
 275                 struct mmc *mmc;
 276                 u8 width, reset, mode;
 277
 278                 if (argc == 6) {
 279                         dev = simple_strtoul(argv[2], NULL, 10);
 280                         width = simple_strtoul(argv[3], NULL, 10);
 281                         reset = simple_strtoul(argv[4], NULL, 10);
 282                         mode = simple_strtoul(argv[5], NULL, 10);
 283                 } else {
 284                         return CMD_RET_USAGE;
 285                 }
 286
 287                 mmc = find_mmc_device(dev);
 288                 if (!mmc) {
 289                         printf("no mmc device at slot %x\n", dev);
 290                         return 1;
 291                 }
 292
 293                 if (IS_SD(mmc)) {
 294                         puts("BOOT_BUS_WIDTH only exists on eMMC\n");
 295                         return 1;
 296                 }
 297
 298                 /* acknowledge to be sent during boot operation */
 299                 return mmc_set_boot_bus_width(mmc, width, reset, mode);
 300         } else if (strcmp(argv[1], "bootpart-resize") == 0) {
 301                 int dev;
 302                 struct mmc *mmc;
 303                 u32 bootsize, rpmbsize;
 304
 305                 if (argc == 5) {
 306                         dev = simple_strtoul(argv[2], NULL, 10);
 307                         bootsize = simple_strtoul(argv[3], NULL, 10);
 308                         rpmbsize = simple_strtoul(argv[4], NULL, 10);
 309                 } else {
 310                         return CMD_RET_USAGE;
 311                 }
 312
 313                 mmc = find_mmc_device(dev);
 314                 if (!mmc) {
 315                         printf("no mmc device at slot %x\n", dev);
 316                         return 1;
 317                 }
 318
 319                 if (IS_SD(mmc)) {
 320                         printf("It is not a EMMC device\n");
 321                         return 1;
 322                 }
 323
 324                 if (0 == mmc_boot_partition_size_change(mmc,
 325                                                         bootsize, rpmbsize)) {
 326                         printf("EMMC boot partition Size %d MB\n", bootsize);
 327                         printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
 328                         return 0;
 329                 } else {
 330                         printf("EMMC boot partition Size change Failed.\n");
 331                         return 1;
 332                 }
 333         } else if (strcmp(argv[1], "rst-function") == 0) {
 334                 /*
 335                  * Set the RST_n_ENABLE bit of RST_n_FUNCTION
 336                  * The only valid values are 0x0, 0x1 and 0x2 and writing
 337                  * a value of 0x1 or 0x2 sets the value permanently.
 338                  */
 339                 int dev;
 340                 struct mmc *mmc;
 341                 u8 enable;
 342
 343                 if (argc == 4) {
 344                         dev = simple_strtoul(argv[2], NULL, 10);
 345                         enable = simple_strtoul(argv[3], NULL, 10);
 346                 } else {
 347                         return CMD_RET_USAGE;
 348                 }
 349
 350                 if (enable > 2 || enable < 0) {
 351                         puts("Invalid RST_n_ENABLE value\n");
 352                         return CMD_RET_USAGE;
 353                 }
 354
 355                 mmc = find_mmc_device(dev);
 356                 if (!mmc) {
 357                         printf("no mmc device at slot %x\n", dev);
 358                         return 1;
 359                 }
 360
 361                 if (IS_SD(mmc)) {
 362                         puts("RST_n_FUNCTION only exists on eMMC\n");
 363                         return 1;
 364                 }
 365
 366                 return mmc_set_rst_n_function(mmc, enable);
 367 #endif /* CONFIG_SUPPORT_EMMC_BOOT */
 368         }
 369
 370         else if (argc == 3 && strcmp(argv[1], "setdsr") == 0) {
 371                 struct mmc *mmc = find_mmc_device(curr_device);
 372                 u32 val = simple_strtoul(argv[2], NULL, 16);
 373                 int ret;
 374
 375                 if (!mmc) {
 376                         printf("no mmc device at slot %x\n", curr_device);
 377                         return 1;
 378                 }
 379                 ret = mmc_set_dsr(mmc, val);
 380                 printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
 381                 if (!ret) {
 382                         mmc->has_init = 0;
 383                         if (mmc_init(mmc))
 384                                 return 1;
 385                         else
 386                                 return 0;
 387                 }
 388                 return ret;
 389         }
 390
 391         state = MMC_INVALID;
 392         if (argc == 5 && strcmp(argv[1], "read") == 0)
 393                 state = MMC_READ;
 394         else if (argc == 5 && strcmp(argv[1], "write") == 0)
 395                 state = MMC_WRITE;
 396         else if (argc == 4 && strcmp(argv[1], "erase") == 0)
 397                 state = MMC_ERASE;
 398
 399         if (state != MMC_INVALID) {
 400                 struct mmc *mmc = find_mmc_device(curr_device);
 401                 int idx = 2;
 402                 u32 blk, cnt, n;
 403                 void *addr;
 404
 405                 if (state != MMC_ERASE) {
 406                         addr = (void *)simple_strtoul(argv[idx], NULL, 16);
 407                         ++idx;
 408                 } else
 409                         addr = NULL;
 410                 blk = simple_strtoul(argv[idx], NULL, 16);
 411                 cnt = simple_strtoul(argv[idx + 1], NULL, 16);
 412
 413                 if (!mmc) {
 414                         printf("no mmc device at slot %x\n", curr_device);
 415                         return 1;
 416                 }
 417
 418                 printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
 419                                 argv[1], curr_device, blk, cnt);
 420
 421                 mmc_init(mmc);
 422
 423                 if ((state == MMC_WRITE || state == MMC_ERASE)) {
 424                         if (mmc_getwp(mmc) == 1) {
 425                                 printf("Error: card is write protected!\n");
 426                                 return 1;
 427                         }
 428                 }
 429
 430                 switch (state) {
 431                 case MMC_READ:
 432                         n = mmc->block_dev.block_read(curr_device, blk,
 433                                                       cnt, addr);
 434                         /* flush cache after read */
 435                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 436                         break;
 437                 case MMC_WRITE:
 438                         n = mmc->block_dev.block_write(curr_device, blk,
 439                                                       cnt, addr);
 440                         break;
 441                 case MMC_ERASE:
 442                         n = mmc->block_dev.block_erase(curr_device, blk, cnt);
 443                         break;
 444                 default:
 445                         BUG();
 446                 }
 447
 448                 printf("%d blocks %s: %s\n",
 449                                 n, argv[1], (n == cnt) ? "OK" : "ERROR");
 450                 return (n == cnt) ? 0 : 1;
 451         }
 452
 453         return CMD_RET_USAGE;
 454 }
 455
 456 U_BOOT_CMD(
 457         mmc, 6, 1, do_mmcops,
 458         "MMC sub system",
 459         "read addr blk# cnt\n"
 460         "mmc write addr blk# cnt\n"
 461         "mmc erase blk# cnt\n"
 462         "mmc rescan\n"
 463         "mmc part - lists available partition on current mmc device\n"
 464         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 465         "mmc list - lists available devices\n"
 466 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 467         "mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
 468         " - Set the BOOT_BUS_WIDTH field of the specified device\n"
 469         "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
 470         " - Change sizes of boot and RPMB partitions of specified device\n"
 471         "mmc partconf dev boot_ack boot_partition partition_access\n"
 472         " - Change the bits of the PARTITION_CONFIG field of the specified device\n"
 473         "mmc rst-function dev value\n"
 474         " - Change the RST_n_FUNCTION field of the specified device\n"
 475         "   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
 476 #endif
 477         "mmc setdsr - set DSR register value\n"
 478         );
 479 #endif /* !CONFIG_GENERIC_MMC */