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->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 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 135 static int boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
 136 {
 137         int err;
 138         err = mmc_boot_part_access(mmc, ack, part_num, access);
 139
 140         if ((err == 0) && (access != 0)) {
 141                 printf("\t\t\t!!!Notice!!!\n");
 142
 143                 printf("!You must close EMMC boot Partition");
 144                 printf("after all images are written\n");
 145
 146                 printf("!EMMC boot partition has continuity");
 147                 printf("at image writing time.\n");
 148
 149                 printf("!So, do not close the boot partition");
 150                 printf("before all images are written.\n");
 151                 return 0;
 152         } else if ((err == 0) && (access == 0))
 153                 return 0;
 154         else if ((err != 0) && (access != 0)) {
 155                 printf("EMMC boot partition-%d OPEN Failed.\n", part_num);
 156                 return 1;
 157         } else {
 158                 printf("EMMC boot partition-%d CLOSE Failed.\n", part_num);
 159                 return 1;
 160         }
 161 }
 162 #endif
 163
 164 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 165 {
 166         enum mmc_state state;
 167
 168         if (argc < 2)
 169                 return CMD_RET_USAGE;
 170
 171         if (curr_device < 0) {
 172                 if (get_mmc_num() > 0)
 173                         curr_device = 0;
 174                 else {
 175                         puts("No MMC device available\n");
 176                         return 1;
 177                 }
 178         }
 179
 180         if (strcmp(argv[1], "rescan") == 0) {
 181                 struct mmc *mmc;
 182
 183                 if (argc != 2)
 184                         return CMD_RET_USAGE;
 185
 186                 mmc = find_mmc_device(curr_device);
 187                 if (!mmc) {
 188                         printf("no mmc device at slot %x\n", curr_device);
 189                         return 1;
 190                 }
 191
 192                 mmc->has_init = 0;
 193
 194                 if (mmc_init(mmc))
 195                         return 1;
 196                 else
 197                         return 0;
 198         } else if (strncmp(argv[1], "part", 4) == 0) {
 199                 block_dev_desc_t *mmc_dev;
 200                 struct mmc *mmc;
 201
 202                 if (argc != 2)
 203                         return CMD_RET_USAGE;
 204
 205                 mmc = find_mmc_device(curr_device);
 206                 if (!mmc) {
 207                         printf("no mmc device at slot %x\n", curr_device);
 208                         return 1;
 209                 }
 210                 mmc_init(mmc);
 211                 mmc_dev = mmc_get_dev(curr_device);
 212                 if (mmc_dev != NULL &&
 213                                 mmc_dev->type != DEV_TYPE_UNKNOWN) {
 214                         print_part(mmc_dev);
 215                         return 0;
 216                 }
 217
 218                 puts("get mmc type error!\n");
 219                 return 1;
 220         } else if (strcmp(argv[1], "list") == 0) {
 221                 if (argc != 2)
 222                         return CMD_RET_USAGE;
 223                 print_mmc_devices('\n');
 224                 return 0;
 225         } else if (strcmp(argv[1], "dev") == 0) {
 226                 int dev, part = -1;
 227                 struct mmc *mmc;
 228
 229                 if (argc == 2)
 230                         dev = curr_device;
 231                 else if (argc == 3)
 232                         dev = simple_strtoul(argv[2], NULL, 10);
 233                 else if (argc == 4) {
 234                         dev = (int)simple_strtoul(argv[2], NULL, 10);
 235                         part = (int)simple_strtoul(argv[3], NULL, 10);
 236                         if (part > PART_ACCESS_MASK) {
 237                                 printf("#part_num shouldn't be larger"
 238                                         " than %d\n", PART_ACCESS_MASK);
 239                                 return 1;
 240                         }
 241                 } else
 242                         return CMD_RET_USAGE;
 243
 244                 mmc = find_mmc_device(dev);
 245                 if (!mmc) {
 246                         printf("no mmc device at slot %x\n", dev);
 247                         return 1;
 248                 }
 249
 250                 mmc_init(mmc);
 251                 if (part != -1) {
 252                         int ret;
 253                         if (mmc->part_config == MMCPART_NOAVAILABLE) {
 254                                 printf("Card doesn't support part_switch\n");
 255                                 return 1;
 256                         }
 257
 258                         if (part != mmc->part_num) {
 259                                 ret = mmc_switch_part(dev, part);
 260                                 if (!ret)
 261                                         mmc->part_num = part;
 262
 263                                 printf("switch to partitions #%d, %s\n",
 264                                                 part, (!ret) ? "OK" : "ERROR");
 265                         }
 266                 }
 267                 curr_device = dev;
 268                 if (mmc->part_config == MMCPART_NOAVAILABLE)
 269                         printf("mmc%d is current device\n", curr_device);
 270                 else
 271                         printf("mmc%d(part %d) is current device\n",
 272                                 curr_device, mmc->part_num);
 273
 274                 return 0;
 275 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 276         } else if ((strcmp(argv[1], "open") == 0) ||
 277                         (strcmp(argv[1], "close") == 0)) {
 278                 int dev;
 279                 struct mmc *mmc;
 280                 u8 part_num, access = 0;
 281
 282                 if (argc == 4) {
 283                         dev = simple_strtoul(argv[2], NULL, 10);
 284                         part_num = simple_strtoul(argv[3], NULL, 10);
 285                 } else {
 286                         return CMD_RET_USAGE;
 287                 }
 288
 289                 mmc = find_mmc_device(dev);
 290                 if (!mmc) {
 291                         printf("no mmc device at slot %x\n", dev);
 292                         return 1;
 293                 }
 294
 295                 if (IS_SD(mmc)) {
 296                         printf("SD device cannot be opened/closed\n");
 297                         return 1;
 298                 }
 299
 300                 if ((part_num <= 0) || (part_num > MMC_NUM_BOOT_PARTITION)) {
 301                         printf("Invalid boot partition number:\n");
 302                         printf("Boot partition number cannot be <= 0\n");
 303                         printf("EMMC44 supports only 2 boot partitions\n");
 304                         return 1;
 305                 }
 306
 307                 if (strcmp(argv[1], "open") == 0)
 308                         access = part_num; /* enable R/W access to boot part*/
 309                 else
 310                         access = 0; /* No access to boot partition */
 311
 312                 /* acknowledge to be sent during boot operation */
 313                 return boot_part_access(mmc, 1, part_num, access);
 314
 315         } else if (strcmp(argv[1], "bootpart") == 0) {
 316                 int dev;
 317                 dev = simple_strtoul(argv[2], NULL, 10);
 318
 319                 u32 bootsize = simple_strtoul(argv[3], NULL, 10);
 320                 u32 rpmbsize = simple_strtoul(argv[4], NULL, 10);
 321                 struct mmc *mmc = find_mmc_device(dev);
 322                 if (!mmc) {
 323                         printf("no mmc device at slot %x\n", dev);
 324                         return 1;
 325                 }
 326
 327                 if (IS_SD(mmc)) {
 328                         printf("It is not a EMMC device\n");
 329                         return 1;
 330                 }
 331
 332                 if (0 == mmc_boot_partition_size_change(mmc,
 333                                                         bootsize, rpmbsize)) {
 334                         printf("EMMC boot partition Size %d MB\n", bootsize);
 335                         printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
 336                         return 0;
 337                 } else {
 338                         printf("EMMC boot partition Size change Failed.\n");
 339                         return 1;
 340                 }
 341 #endif /* CONFIG_SUPPORT_EMMC_BOOT */
 342         }
 343         state = MMC_INVALID;
 344         if (argc == 5 && strcmp(argv[1], "read") == 0)
 345                 state = MMC_READ;
 346         else if (argc == 5 && strcmp(argv[1], "write") == 0)
 347                 state = MMC_WRITE;
 348         else if (argc == 4 && strcmp(argv[1], "erase") == 0)
 349                 state = MMC_ERASE;
 350
 351         if (state != MMC_INVALID) {
 352                 struct mmc *mmc = find_mmc_device(curr_device);
 353                 int idx = 2;
 354                 u32 blk, cnt, n;
 355                 void *addr;
 356
 357                 if (state != MMC_ERASE) {
 358                         addr = (void *)simple_strtoul(argv[idx], NULL, 16);
 359                         ++idx;
 360                 } else
 361                         addr = NULL;
 362                 blk = simple_strtoul(argv[idx], NULL, 16);
 363                 cnt = simple_strtoul(argv[idx + 1], NULL, 16);
 364
 365                 if (!mmc) {
 366                         printf("no mmc device at slot %x\n", curr_device);
 367                         return 1;
 368                 }
 369
 370                 printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
 371                                 argv[1], curr_device, blk, cnt);
 372
 373                 mmc_init(mmc);
 374
 375                 if ((state == MMC_WRITE || state == MMC_ERASE)) {
 376                         if (mmc_getwp(mmc) == 1) {
 377                                 printf("Error: card is write protected!\n");
 378                                 return 1;
 379                         }
 380                 }
 381
 382                 switch (state) {
 383                 case MMC_READ:
 384                         n = mmc->block_dev.block_read(curr_device, blk,
 385                                                       cnt, addr);
 386                         /* flush cache after read */
 387                         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 388                         break;
 389                 case MMC_WRITE:
 390                         n = mmc->block_dev.block_write(curr_device, blk,
 391                                                       cnt, addr);
 392                         break;
 393                 case MMC_ERASE:
 394                         n = mmc->block_dev.block_erase(curr_device, blk, cnt);
 395                         break;
 396                 default:
 397                         BUG();
 398                 }
 399
 400                 printf("%d blocks %s: %s\n",
 401                                 n, argv[1], (n == cnt) ? "OK" : "ERROR");
 402                 return (n == cnt) ? 0 : 1;
 403         }
 404
 405         return CMD_RET_USAGE;
 406 }
 407
 408 U_BOOT_CMD(
 409         mmc, 6, 1, do_mmcops,
 410         "MMC sub system",
 411         "read addr blk# cnt\n"
 412         "mmc write addr blk# cnt\n"
 413         "mmc erase blk# cnt\n"
 414         "mmc rescan\n"
 415         "mmc part - lists available partition on current mmc device\n"
 416         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 417         "mmc list - lists available devices\n"
 418 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 419         "mmc open <dev> <boot_partition>\n"
 420         " - Enable boot_part for booting and enable R/W access of boot_part\n"
 421         "mmc close <dev> <boot_partition>\n"
 422         " - Enable boot_part for booting and disable access to boot_part\n"
 423         "mmc bootpart <device num> <boot part size MB> <RPMB part size MB>\n"
 424         " - change sizes of boot and RPMB partitions of specified device\n"
 425 #endif
 426         );
 427 #endif /* !CONFIG_GENERIC_MMC */