cmd/flash.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000
   4  * Wolfgang Denk, DENX Software Engineering, [email protected].
   5  */
   6
   7 /*
   8  * FLASH support
   9  */
  10 #include <common.h>
  11 #include <command.h>
  12 #include <uuid.h>
  13
  14 #if defined(CONFIG_CMD_MTDPARTS)
  15 #include <jffs2/jffs2.h>
  16
  17 /* partition handling routines */
  18 int mtdparts_init(void);
  19 int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
  20 int find_dev_and_part(const char *id, struct mtd_device **dev,
  21                 u8 *part_num, struct part_info **part);
  22 #endif
  23
  24 #ifdef CONFIG_MTD_NOR_FLASH
  25 #include <flash.h>
  26 #include <mtd/cfi_flash.h>
  27 extern flash_info_t flash_info[];       /* info for FLASH chips */
  28
  29 /*
  30  * The user interface starts numbering for Flash banks with 1
  31  * for historical reasons.
  32  */
  33
  34 /*
  35  * this routine looks for an abbreviated flash range specification.
  36  * the syntax is B:SF[-SL], where B is the bank number, SF is the first
  37  * sector to erase, and SL is the last sector to erase (defaults to SF).
  38  * bank numbers start at 1 to be consistent with other specs, sector numbers
  39  * start at zero.
  40  *
  41  * returns:     1       - correct spec; *pinfo, *psf and *psl are
  42  *                        set appropriately
  43  *              0       - doesn't look like an abbreviated spec
  44  *              -1      - looks like an abbreviated spec, but got
  45  *                        a parsing error, a number out of range,
  46  *                        or an invalid flash bank.
  47  */
  48 static int
  49 abbrev_spec (char *str, flash_info_t ** pinfo, int *psf, int *psl)
  50 {
  51         flash_info_t *fp;
  52         int bank, first, last;
  53         char *p, *ep;
  54
  55         if ((p = strchr (str, ':')) == NULL)
  56                 return 0;
  57         *p++ = '\0';
  58
  59         bank = simple_strtoul (str, &ep, 10);
  60         if (ep == str || *ep != '\0' ||
  61                 bank < 1 || bank > CONFIG_SYS_MAX_FLASH_BANKS ||
  62                 (fp = &flash_info[bank - 1])->flash_id == FLASH_UNKNOWN)
  63                 return -1;
  64
  65         str = p;
  66         if ((p = strchr (str, '-')) != NULL)
  67                 *p++ = '\0';
  68
  69         first = simple_strtoul (str, &ep, 10);
  70         if (ep == str || *ep != '\0' || first >= fp->sector_count)
  71                 return -1;
  72
  73         if (p != NULL) {
  74                 last = simple_strtoul (p, &ep, 10);
  75                 if (ep == p || *ep != '\0' ||
  76                         last < first || last >= fp->sector_count)
  77                         return -1;
  78         } else {
  79                 last = first;
  80         }
  81
  82         *pinfo = fp;
  83         *psf = first;
  84         *psl = last;
  85
  86         return 1;
  87 }
  88
  89 /*
  90  * Take *addr in Flash and adjust it to fall on the end of its sector
  91  */
  92 int flash_sect_roundb(ulong *addr)
  93 {
  94         flash_info_t *info;
  95         ulong bank, sector_end_addr;
  96         char found;
  97         int i;
  98
  99         /* find the end addr of the sector where the *addr is */
 100         found = 0;
 101         for (bank = 0; bank < CONFIG_SYS_MAX_FLASH_BANKS && !found; ++bank) {
 102                 info = &flash_info[bank];
 103                 for (i = 0; i < info->sector_count && !found; ++i) {
 104                         /* get the end address of the sector */
 105                         if (i == info->sector_count - 1) {
 106                                 sector_end_addr = info->start[0] +
 107                                                                 info->size - 1;
 108                         } else {
 109                                 sector_end_addr = info->start[i+1] - 1;
 110                         }
 111
 112                         if (*addr <= sector_end_addr &&
 113                                                 *addr >= info->start[i]) {
 114                                 found = 1;
 115                                 /* adjust *addr if necessary */
 116                                 if (*addr < sector_end_addr)
 117                                         *addr = sector_end_addr;
 118                         } /* sector */
 119                 } /* bank */
 120         }
 121         if (!found) {
 122                 /* error, address not in flash */
 123                 printf("Error: end address (0x%08lx) not in flash!\n", *addr);
 124                 return 1;
 125         }
 126
 127         return 0;
 128 }
 129
 130 /*
 131  * This function computes the start and end addresses for both
 132  * erase and protect commands. The range of the addresses on which
 133  * either of the commands is to operate can be given in two forms:
 134  * 1. <cmd> start end - operate on <'start',  'end')
 135  * 2. <cmd> start +length - operate on <'start', start + length)
 136  * If the second form is used and the end address doesn't fall on the
 137  * sector boundary, than it will be adjusted to the next sector boundary.
 138  * If it isn't in the flash, the function will fail (return -1).
 139  * Input:
 140  *    arg1, arg2: address specification (i.e. both command arguments)
 141  * Output:
 142  *    addr_first, addr_last: computed address range
 143  * Return:
 144  *    1: success
 145  *   -1: failure (bad format, bad address).
 146 */
 147 static int
 148 addr_spec(char *arg1, char *arg2, ulong *addr_first, ulong *addr_last)
 149 {
 150         char *ep;
 151         char len_used; /* indicates if the "start +length" form used */
 152
 153         *addr_first = simple_strtoul(arg1, &ep, 16);
 154         if (ep == arg1 || *ep != '\0')
 155                 return -1;
 156
 157         len_used = 0;
 158         if (arg2 && *arg2 == '+'){
 159                 len_used = 1;
 160                 ++arg2;
 161         }
 162
 163         *addr_last = simple_strtoul(arg2, &ep, 16);
 164         if (ep == arg2 || *ep != '\0')
 165                 return -1;
 166
 167         if (len_used){
 168                 /*
 169                  * *addr_last has the length, compute correct *addr_last
 170                  * XXX watch out for the integer overflow! Right now it is
 171                  * checked for in both the callers.
 172                  */
 173                 *addr_last = *addr_first + *addr_last - 1;
 174
 175                 /*
 176                  * It may happen that *addr_last doesn't fall on the sector
 177                  * boundary. We want to round such an address to the next
 178                  * sector boundary, so that the commands don't fail later on.
 179                  */
 180
 181                 if (flash_sect_roundb(addr_last) > 0)
 182                         return -1;
 183         } /* "start +length" from used */
 184
 185         return 1;
 186 }
 187
 188 static int
 189 flash_fill_sect_ranges (ulong addr_first, ulong addr_last,
 190                         int *s_first, int *s_last,
 191                         int *s_count )
 192 {
 193         flash_info_t *info;
 194         ulong bank;
 195         int rcode = 0;
 196
 197         *s_count = 0;
 198
 199         for (bank=0; bank < CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
 200                 s_first[bank] = -1;     /* first sector to erase        */
 201                 s_last [bank] = -1;     /* last  sector to erase        */
 202         }
 203
 204         for (bank=0,info = &flash_info[0];
 205              (bank < CONFIG_SYS_MAX_FLASH_BANKS) && (addr_first <= addr_last);
 206              ++bank, ++info) {
 207                 ulong b_end;
 208                 int sect;
 209                 short s_end;
 210
 211                 if (info->flash_id == FLASH_UNKNOWN) {
 212                         continue;
 213                 }
 214
 215                 b_end = info->start[0] + info->size - 1;        /* bank end addr */
 216                 s_end = info->sector_count - 1;                 /* last sector   */
 217
 218
 219                 for (sect=0; sect < info->sector_count; ++sect) {
 220                         ulong end;      /* last address in current sect */
 221
 222                         end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
 223
 224                         if (addr_first > end)
 225                                 continue;
 226                         if (addr_last < info->start[sect])
 227                                 continue;
 228
 229                         if (addr_first == info->start[sect]) {
 230                                 s_first[bank] = sect;
 231                         }
 232                         if (addr_last  == end) {
 233                                 s_last[bank]  = sect;
 234                         }
 235                 }
 236                 if (s_first[bank] >= 0) {
 237                         if (s_last[bank] < 0) {
 238                                 if (addr_last > b_end) {
 239                                         s_last[bank] = s_end;
 240                                 } else {
 241                                         puts ("Error: end address"
 242                                                 " not on sector boundary\n");
 243                                         rcode = 1;
 244                                         break;
 245                                 }
 246                         }
 247                         if (s_last[bank] < s_first[bank]) {
 248                                 puts ("Error: end sector"
 249                                         " precedes start sector\n");
 250                                 rcode = 1;
 251                                 break;
 252                         }
 253                         sect = s_last[bank];
 254                         addr_first = (sect == s_end) ? b_end + 1: info->start[sect + 1];
 255                         (*s_count) += s_last[bank] - s_first[bank] + 1;
 256                 } else if (addr_first >= info->start[0] && addr_first < b_end) {
 257                         puts ("Error: start address not on sector boundary\n");
 258                         rcode = 1;
 259                         break;
 260                 } else if (s_last[bank] >= 0) {
 261                         puts ("Error: cannot span across banks when they are"
 262                                " mapped in reverse order\n");
 263                         rcode = 1;
 264                         break;
 265                 }
 266         }
 267
 268         return rcode;
 269 }
 270 #endif /* CONFIG_MTD_NOR_FLASH */
 271
 272 static int do_flinfo(struct cmd_tbl *cmdtp, int flag, int argc,
 273                      char *const argv[])
 274 {
 275 #ifdef CONFIG_MTD_NOR_FLASH
 276         ulong bank;
 277 #endif
 278
 279 #ifdef CONFIG_MTD_NOR_FLASH
 280         if (argc == 1) {        /* print info for all FLASH banks */
 281                 for (bank=0; bank <CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
 282                         printf ("\nBank # %ld: ", bank+1);
 283
 284                         flash_print_info(&flash_info[bank]);
 285                 }
 286                 return 0;
 287         }
 288
 289         bank = simple_strtoul(argv[1], NULL, 16);
 290         if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
 291                 printf ("Only FLASH Banks # 1 ... # %d supported\n",
 292                         CONFIG_SYS_MAX_FLASH_BANKS);
 293                 return 1;
 294         }
 295         printf ("\nBank # %ld: ", bank);
 296         flash_print_info(&flash_info[bank - 1]);
 297 #endif /* CONFIG_MTD_NOR_FLASH */
 298         return 0;
 299 }
 300
 301 static int do_flerase(struct cmd_tbl *cmdtp, int flag, int argc,
 302                       char *const argv[])
 303 {
 304 #ifdef CONFIG_MTD_NOR_FLASH
 305         flash_info_t *info = NULL;
 306         ulong bank, addr_first, addr_last;
 307         int n, sect_first = 0, sect_last = 0;
 308 #if defined(CONFIG_CMD_MTDPARTS)
 309         struct mtd_device *dev;
 310         struct part_info *part;
 311         u8 dev_type, dev_num, pnum;
 312 #endif
 313         int rcode = 0;
 314
 315         if (argc < 2)
 316                 return CMD_RET_USAGE;
 317
 318         if (strcmp(argv[1], "all") == 0) {
 319                 for (bank=1; bank<=CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
 320                         printf ("Erase Flash Bank # %ld ", bank);
 321                         info = &flash_info[bank-1];
 322                         rcode = flash_erase(info, 0, info->sector_count - 1);
 323                 }
 324                 return rcode;
 325         }
 326
 327         if ((n = abbrev_spec(argv[1], &info, &sect_first, &sect_last)) != 0) {
 328                 if (n < 0) {
 329                         puts ("Bad sector specification\n");
 330                         return 1;
 331                 }
 332                 printf ("Erase Flash Sectors %d-%d in Bank # %zu ",
 333                         sect_first, sect_last, (info-flash_info)+1);
 334                 rcode = flash_erase(info, sect_first, sect_last);
 335                 return rcode;
 336         }
 337
 338 #if defined(CONFIG_CMD_MTDPARTS)
 339         /* erase <part-id> - erase partition */
 340         if ((argc == 2) && (mtd_id_parse(argv[1], NULL, &dev_type, &dev_num) == 0)) {
 341                 mtdparts_init();
 342                 if (find_dev_and_part(argv[1], &dev, &pnum, &part) == 0) {
 343                         if (dev->id->type == MTD_DEV_TYPE_NOR) {
 344                                 bank = dev->id->num;
 345                                 info = &flash_info[bank];
 346                                 addr_first = part->offset + info->start[0];
 347                                 addr_last = addr_first + part->size - 1;
 348
 349                                 printf ("Erase Flash Partition %s, "
 350                                                 "bank %ld, 0x%08lx - 0x%08lx ",
 351                                                 argv[1], bank, addr_first,
 352                                                 addr_last);
 353
 354                                 rcode = flash_sect_erase(addr_first, addr_last);
 355                                 return rcode;
 356                         }
 357
 358                         printf("cannot erase, not a NOR device\n");
 359                         return 1;
 360                 }
 361         }
 362 #endif
 363
 364         if (argc != 3)
 365                 return CMD_RET_USAGE;
 366
 367         if (strcmp(argv[1], "bank") == 0) {
 368                 bank = simple_strtoul(argv[2], NULL, 16);
 369                 if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
 370                         printf ("Only FLASH Banks # 1 ... # %d supported\n",
 371                                 CONFIG_SYS_MAX_FLASH_BANKS);
 372                         return 1;
 373                 }
 374                 printf ("Erase Flash Bank # %ld ", bank);
 375                 info = &flash_info[bank-1];
 376                 rcode = flash_erase(info, 0, info->sector_count - 1);
 377                 return rcode;
 378         }
 379
 380         if (addr_spec(argv[1], argv[2], &addr_first, &addr_last) < 0){
 381                 printf ("Bad address format\n");
 382                 return 1;
 383         }
 384
 385         if (addr_first >= addr_last)
 386                 return CMD_RET_USAGE;
 387
 388         rcode = flash_sect_erase(addr_first, addr_last);
 389         return rcode;
 390 #else
 391         return 0;
 392 #endif /* CONFIG_MTD_NOR_FLASH */
 393 }
 394
 395 #ifdef CONFIG_MTD_NOR_FLASH
 396 int flash_sect_erase(ulong addr_first, ulong addr_last)
 397 {
 398         flash_info_t *info;
 399         ulong bank;
 400         int s_first[CONFIG_SYS_MAX_FLASH_BANKS], s_last[CONFIG_SYS_MAX_FLASH_BANKS];
 401         int erased = 0;
 402         int planned;
 403         int rcode = 0;
 404
 405         rcode = flash_fill_sect_ranges (addr_first, addr_last,
 406                                         s_first, s_last, &planned );
 407
 408         if (planned && (rcode == 0)) {
 409                 for (bank=0,info = &flash_info[0];
 410                      (bank < CONFIG_SYS_MAX_FLASH_BANKS) && (rcode == 0);
 411                      ++bank, ++info) {
 412                         if (s_first[bank]>=0) {
 413                                 erased += s_last[bank] - s_first[bank] + 1;
 414                                 debug ("Erase Flash from 0x%08lx to 0x%08lx "
 415                                         "in Bank # %ld ",
 416                                         info->start[s_first[bank]],
 417                                         (s_last[bank] == info->sector_count) ?
 418                                                 info->start[0] + info->size - 1:
 419                                                 info->start[s_last[bank]+1] - 1,
 420                                         bank+1);
 421                                 rcode = flash_erase(info, s_first[bank],
 422                                                     s_last[bank]);
 423                         }
 424                 }
 425                 if (rcode == 0)
 426                         printf("Erased %d sectors\n", erased);
 427         } else if (rcode == 0) {
 428                 puts ("Error: start and/or end address"
 429                         " not on sector boundary\n");
 430                 rcode = 1;
 431         }
 432         return rcode;
 433 }
 434 #endif /* CONFIG_MTD_NOR_FLASH */
 435
 436 static int do_protect(struct cmd_tbl *cmdtp, int flag, int argc,
 437                       char *const argv[])
 438 {
 439         int rcode = 0;
 440 #ifdef CONFIG_MTD_NOR_FLASH
 441         flash_info_t *info = NULL;
 442         ulong bank;
 443         int i, n, sect_first = 0, sect_last = 0;
 444 #if defined(CONFIG_CMD_MTDPARTS)
 445         struct mtd_device *dev;
 446         struct part_info *part;
 447         u8 dev_type, dev_num, pnum;
 448 #endif
 449 #endif /* CONFIG_MTD_NOR_FLASH */
 450 #if defined(CONFIG_MTD_NOR_FLASH)
 451         int p;
 452         ulong addr_first, addr_last;
 453 #endif
 454
 455         if (argc < 3)
 456                 return CMD_RET_USAGE;
 457
 458 #if defined(CONFIG_MTD_NOR_FLASH)
 459         if (strcmp(argv[1], "off") == 0)
 460                 p = 0;
 461         else if (strcmp(argv[1], "on") == 0)
 462                 p = 1;
 463         else
 464                 return CMD_RET_USAGE;
 465 #endif
 466
 467 #ifdef CONFIG_MTD_NOR_FLASH
 468         if (strcmp(argv[2], "all") == 0) {
 469                 for (bank=1; bank<=CONFIG_SYS_MAX_FLASH_BANKS; ++bank) {
 470                         info = &flash_info[bank-1];
 471                         if (info->flash_id == FLASH_UNKNOWN) {
 472                                 continue;
 473                         }
 474                         printf ("%sProtect Flash Bank # %ld\n",
 475                                 p ? "" : "Un-", bank);
 476
 477                         for (i=0; i<info->sector_count; ++i) {
 478 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 479                                 if (flash_real_protect(info, i, p))
 480                                         rcode = 1;
 481                                 putc ('.');
 482 #else
 483                                 info->protect[i] = p;
 484 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 485                         }
 486 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 487                         if (!rcode) puts (" done\n");
 488 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 489                 }
 490                 return rcode;
 491         }
 492
 493         if ((n = abbrev_spec(argv[2], &info, &sect_first, &sect_last)) != 0) {
 494                 if (n < 0) {
 495                         puts ("Bad sector specification\n");
 496                         return 1;
 497                 }
 498                 printf("%sProtect Flash Sectors %d-%d in Bank # %zu\n",
 499                         p ? "" : "Un-", sect_first, sect_last,
 500                         (info-flash_info)+1);
 501                 for (i = sect_first; i <= sect_last; i++) {
 502 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 503                         if (flash_real_protect(info, i, p))
 504                                 rcode =  1;
 505                         putc ('.');
 506 #else
 507                         info->protect[i] = p;
 508 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 509                 }
 510
 511 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 512                 if (!rcode) puts (" done\n");
 513 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 514
 515                 return rcode;
 516         }
 517
 518 #if defined(CONFIG_CMD_MTDPARTS)
 519         /* protect on/off <part-id> */
 520         if ((argc == 3) && (mtd_id_parse(argv[2], NULL, &dev_type, &dev_num) == 0)) {
 521                 mtdparts_init();
 522                 if (find_dev_and_part(argv[2], &dev, &pnum, &part) == 0) {
 523                         if (dev->id->type == MTD_DEV_TYPE_NOR) {
 524                                 bank = dev->id->num;
 525                                 info = &flash_info[bank];
 526                                 addr_first = part->offset + info->start[0];
 527                                 addr_last = addr_first + part->size - 1;
 528
 529                                 printf ("%sProtect Flash Partition %s, "
 530                                                 "bank %ld, 0x%08lx - 0x%08lx\n",
 531                                                 p ? "" : "Un", argv[1],
 532                                                 bank, addr_first, addr_last);
 533
 534                                 rcode = flash_sect_protect(p, addr_first,
 535                                                            addr_last);
 536                                 return rcode;
 537                         }
 538
 539                         printf("cannot %sprotect, not a NOR device\n",
 540                                         p ? "" : "un");
 541                         return 1;
 542                 }
 543         }
 544 #endif
 545
 546         if (argc != 4)
 547                 return CMD_RET_USAGE;
 548
 549         if (strcmp(argv[2], "bank") == 0) {
 550                 bank = simple_strtoul(argv[3], NULL, 16);
 551                 if ((bank < 1) || (bank > CONFIG_SYS_MAX_FLASH_BANKS)) {
 552                         printf ("Only FLASH Banks # 1 ... # %d supported\n",
 553                                 CONFIG_SYS_MAX_FLASH_BANKS);
 554                         return 1;
 555                 }
 556                 printf ("%sProtect Flash Bank # %ld\n",
 557                         p ? "" : "Un-", bank);
 558                 info = &flash_info[bank-1];
 559
 560                 if (info->flash_id == FLASH_UNKNOWN) {
 561                         puts ("missing or unknown FLASH type\n");
 562                         return 1;
 563                 }
 564                 for (i=0; i<info->sector_count; ++i) {
 565 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 566                         if (flash_real_protect(info, i, p))
 567                                 rcode =  1;
 568                         putc ('.');
 569 #else
 570                         info->protect[i] = p;
 571 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 572                 }
 573
 574 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 575                 if (!rcode) puts (" done\n");
 576 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 577
 578                 return rcode;
 579         }
 580
 581         if (addr_spec(argv[2], argv[3], &addr_first, &addr_last) < 0){
 582                 printf("Bad address format\n");
 583                 return 1;
 584         }
 585
 586         if (addr_first >= addr_last)
 587                 return CMD_RET_USAGE;
 588
 589         rcode = flash_sect_protect(p, addr_first, addr_last);
 590 #endif /* CONFIG_MTD_NOR_FLASH */
 591         return rcode;
 592 }
 593
 594 #ifdef CONFIG_MTD_NOR_FLASH
 595 int flash_sect_protect(int p, ulong addr_first, ulong addr_last)
 596 {
 597         flash_info_t *info;
 598         ulong bank;
 599         int s_first[CONFIG_SYS_MAX_FLASH_BANKS], s_last[CONFIG_SYS_MAX_FLASH_BANKS];
 600         int protected, i;
 601         int planned;
 602         int rcode;
 603
 604         rcode = flash_fill_sect_ranges( addr_first, addr_last, s_first, s_last, &planned );
 605
 606         protected = 0;
 607
 608         if (planned && (rcode == 0)) {
 609                 for (bank=0,info = &flash_info[0]; bank < CONFIG_SYS_MAX_FLASH_BANKS; ++bank, ++info) {
 610                         if (info->flash_id == FLASH_UNKNOWN) {
 611                                 continue;
 612                         }
 613
 614                         if (s_first[bank]>=0 && s_first[bank]<=s_last[bank]) {
 615                                 debug ("%sProtecting sectors %d..%d in bank %ld\n",
 616                                         p ? "" : "Un-",
 617                                         s_first[bank], s_last[bank], bank+1);
 618                                 protected += s_last[bank] - s_first[bank] + 1;
 619                                 for (i=s_first[bank]; i<=s_last[bank]; ++i) {
 620 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 621                                         if (flash_real_protect(info, i, p))
 622                                                 rcode = 1;
 623                                         putc ('.');
 624 #else
 625                                         info->protect[i] = p;
 626 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 627                                 }
 628                         }
 629                 }
 630 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 631                 puts (" done\n");
 632 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 633
 634                 printf ("%sProtected %d sectors\n",
 635                         p ? "" : "Un-", protected);
 636         } else if (rcode == 0) {
 637                 puts ("Error: start and/or end address"
 638                         " not on sector boundary\n");
 639                 rcode = 1;
 640         }
 641         return rcode;
 642 }
 643 #endif /* CONFIG_MTD_NOR_FLASH */
 644
 645
 646 /**************************************************/
 647 #if defined(CONFIG_CMD_MTDPARTS)
 648 # define TMP_ERASE      "erase <part-id>\n    - erase partition\n"
 649 # define TMP_PROT_ON    "protect on <part-id>\n    - protect partition\n"
 650 # define TMP_PROT_OFF   "protect off <part-id>\n    - make partition writable\n"
 651 #else
 652 # define TMP_ERASE      /* empty */
 653 # define TMP_PROT_ON    /* empty */
 654 # define TMP_PROT_OFF   /* empty */
 655 #endif
 656
 657 U_BOOT_CMD(
 658         flinfo,    2,    1,    do_flinfo,
 659         "print FLASH memory information",
 660         "\n    - print information for all FLASH memory banks\n"
 661         "flinfo N\n    - print information for FLASH memory bank # N"
 662 );
 663
 664 U_BOOT_CMD(
 665         erase,   3,   0,  do_flerase,
 666         "erase FLASH memory",
 667         "start end\n"
 668         "    - erase FLASH from addr 'start' to addr 'end'\n"
 669         "erase start +len\n"
 670         "    - erase FLASH from addr 'start' to the end of sect "
 671         "w/addr 'start'+'len'-1\n"
 672         "erase N:SF[-SL]\n    - erase sectors SF-SL in FLASH bank # N\n"
 673         "erase bank N\n    - erase FLASH bank # N\n"
 674         TMP_ERASE
 675         "erase all\n    - erase all FLASH banks"
 676 );
 677
 678 U_BOOT_CMD(
 679         protect,  4,  0,   do_protect,
 680         "enable or disable FLASH write protection",
 681         "on  start end\n"
 682         "    - protect FLASH from addr 'start' to addr 'end'\n"
 683         "protect on start +len\n"
 684         "    - protect FLASH from addr 'start' to end of sect "
 685         "w/addr 'start'+'len'-1\n"
 686         "protect on  N:SF[-SL]\n"
 687         "    - protect sectors SF-SL in FLASH bank # N\n"
 688         "protect on  bank N\n    - protect FLASH bank # N\n"
 689         TMP_PROT_ON
 690         "protect on  all\n    - protect all FLASH banks\n"
 691         "protect off start end\n"
 692         "    - make FLASH from addr 'start' to addr 'end' writable\n"
 693         "protect off start +len\n"
 694         "    - make FLASH from addr 'start' to end of sect "
 695         "w/addr 'start'+'len'-1 wrtable\n"
 696         "protect off N:SF[-SL]\n"
 697         "    - make sectors SF-SL writable in FLASH bank # N\n"
 698         "protect off bank N\n    - make FLASH bank # N writable\n"
 699         TMP_PROT_OFF
 700         "protect off all\n    - make all FLASH banks writable"
 701 );
 702
 703 #undef  TMP_ERASE
 704 #undef  TMP_PROT_ON
 705 #undef  TMP_PROT_OFF