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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath <Dominic.Rath@gmx.de>              *
   3  *   Copyright (C) 2007,2008 Øyvind Harboe <oyvind.harboe@zylin.com>       *
   4  *   Copyright (C) 2008 by Spencer Oliver <spen@spen-soft.co.uk>           *
   5  *   Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net>             *
   6  *                                                                         *
   7  *   This program is free software; you can redistribute it and/or modify  *
   8  *   it under the terms of the GNU General Public License as published by  *
   9  *   the Free Software Foundation; either version 2 of the License, or     *
  10  *   (at your option) any later version.                                   *
  11  *                                                                         *
  12  *   This program is distributed in the hope that it will be useful,       *
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  15  *   GNU General Public License for more details.                          *
  16  *                                                                         *
  17  *   You should have received a copy of the GNU General Public License     *
  18  *   along with this program; if not, write to the                         *
  19  *   Free Software Foundation, Inc.,                                       *
  20  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  21  ***************************************************************************/
  22 #ifdef HAVE_CONFIG_H
  23 #include "config.h"
  24 #endif
  25 #include "imp.h"
  26 #include <helper/time_support.h>
  27 #include <target/image.h>
  28
  29 /**
  30  * @file
  31  * Implements Tcl commands used to access NOR flash facilities.
  32  */
  33
  34 COMMAND_HELPER(flash_command_get_bank, unsigned name_index,
  35                 struct flash_bank **bank)
  36 {
  37         const char *name = CMD_ARGV[name_index];
  38         int retval = get_flash_bank_by_name(name, bank);
  39         if (retval != ERROR_OK)
  40                 return retval;
  41         if (*bank)
  42                 return ERROR_OK;
  43
  44         unsigned bank_num;
  45         COMMAND_PARSE_NUMBER(uint, name, bank_num);
  46
  47         return get_flash_bank_by_num(bank_num, bank);
  48 }
  49
  50
  51 COMMAND_HANDLER(handle_flash_info_command)
  52 {
  53         struct flash_bank *p;
  54         int j = 0;
  55         int retval;
  56
  57         if (CMD_ARGC != 1)
  58                 return ERROR_COMMAND_SYNTAX_ERROR;
  59
  60         retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
  61         if (retval != ERROR_OK)
  62                 return retval;
  63
  64         if (p != NULL)
  65         {
  66                 char buf[1024];
  67
  68                 /* attempt auto probe */
  69                 if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
  70                         return retval;
  71
  72                 /* We must query the hardware to avoid printing stale information! */
  73                 retval = p->driver->protect_check(p);
  74                 if (retval != ERROR_OK)
  75                         return retval;
  76
  77                 command_print(CMD_CTX,
  78                               "#%" PRIu32 " : %s at 0x%8.8" PRIx32 ", size 0x%8.8" PRIx32 ", buswidth %i, chipwidth %i",
  79                               p->bank_number,
  80                               p->driver->name,
  81                               p->base,
  82                               p->size,
  83                               p->bus_width,
  84                               p->chip_width);
  85                 for (j = 0; j < p->num_sectors; j++)
  86                 {
  87                         char *protect_state;
  88
  89                         if (p->sectors[j].is_protected == 0)
  90                                 protect_state = "not protected";
  91                         else if (p->sectors[j].is_protected == 1)
  92                                 protect_state = "protected";
  93                         else
  94                                 protect_state = "protection state unknown";
  95
  96                         command_print(CMD_CTX,
  97                                       "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
  98                                       j,
  99                                       p->sectors[j].offset,
 100                                       p->sectors[j].size,
 101                                       p->sectors[j].size >> 10,
 102                                       protect_state);
 103                 }
 104
 105                 *buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
 106                 retval = p->driver->info(p, buf, sizeof(buf));
 107                 command_print(CMD_CTX, "%s", buf);
 108                 if (retval != ERROR_OK)
 109                         LOG_ERROR("error retrieving flash info (%d)", retval);
 110         }
 111
 112         return ERROR_OK;
 113 }
 114
 115 COMMAND_HANDLER(handle_flash_probe_command)
 116 {
 117         struct flash_bank *p;
 118         int retval;
 119
 120         if (CMD_ARGC != 1)
 121         {
 122                 return ERROR_COMMAND_SYNTAX_ERROR;
 123         }
 124
 125         retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 126         if (retval != ERROR_OK)
 127                 return retval;
 128
 129         if (p)
 130         {
 131                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 132                 {
 133                         command_print(CMD_CTX, "flash '%s' found at 0x%8.8" PRIx32, p->driver->name, p->base);
 134                 }
 135         }
 136         else
 137         {
 138                 command_print(CMD_CTX, "flash bank '#%s' is out of bounds", CMD_ARGV[0]);
 139                 retval = ERROR_FAIL;
 140         }
 141
 142         return retval;
 143 }
 144
 145 COMMAND_HANDLER(handle_flash_erase_check_command)
 146 {
 147         if (CMD_ARGC != 1)
 148         {
 149                 return ERROR_COMMAND_SYNTAX_ERROR;
 150         }
 151
 152         struct flash_bank *p;
 153         int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 154         if (ERROR_OK != retval)
 155                 return retval;
 156
 157         int j;
 158         if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 159         {
 160                 command_print(CMD_CTX, "successfully checked erase state");
 161         }
 162         else
 163         {
 164                 command_print(CMD_CTX, "unknown error when checking erase state of flash bank #%s at 0x%8.8" PRIx32,
 165                         CMD_ARGV[0], p->base);
 166         }
 167
 168         for (j = 0; j < p->num_sectors; j++)
 169         {
 170                 char *erase_state;
 171
 172                 if (p->sectors[j].is_erased == 0)
 173                         erase_state = "not erased";
 174                 else if (p->sectors[j].is_erased == 1)
 175                         erase_state = "erased";
 176                 else
 177                         erase_state = "erase state unknown";
 178
 179                 command_print(CMD_CTX,
 180                               "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
 181                               j,
 182                               p->sectors[j].offset,
 183                               p->sectors[j].size,
 184                               p->sectors[j].size >> 10,
 185                               erase_state);
 186         }
 187
 188         return ERROR_OK;
 189 }
 190
 191 COMMAND_HANDLER(handle_flash_erase_address_command)
 192 {
 193         struct flash_bank *p;
 194         int retval = ERROR_OK;
 195         uint32_t address;
 196         uint32_t length;
 197         bool do_pad = false;
 198         bool do_unlock = false;
 199         struct target *target = get_current_target(CMD_CTX);
 200
 201         while (CMD_ARGC >= 3)
 202         {
 203                 /* Optionally pad out the address range to block/sector
 204                  * boundaries.  We can't know if there's data in that part
 205                  * of the flash; only do padding if we're told to.
 206                  */
 207                 if (strcmp("pad", CMD_ARGV[0]) == 0)
 208                 {
 209                         do_pad = true;
 210                 } else if (strcmp("unlock", CMD_ARGV[0]) == 0)
 211                 {
 212                         do_unlock = true;
 213                 } else
 214                 {
 215                         return ERROR_COMMAND_SYNTAX_ERROR;
 216                 }
 217                 CMD_ARGC--;
 218                 CMD_ARGV++;
 219         }
 220         if (CMD_ARGC != 2)
 221         {
 222                 return ERROR_COMMAND_SYNTAX_ERROR;
 223         }
 224
 225         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
 226         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
 227
 228         if (length <= 0)
 229         {
 230                 command_print(CMD_CTX, "Length must be >0");
 231                 return ERROR_COMMAND_SYNTAX_ERROR;
 232         }
 233
 234         retval = get_flash_bank_by_addr(target, address, true, &p);
 235         if (retval != ERROR_OK)
 236                 return retval;
 237
 238         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 239         flash_set_dirty();
 240
 241         struct duration bench;
 242         duration_start(&bench);
 243
 244         if (do_unlock)
 245         {
 246                 retval = flash_unlock_address_range(target, address, length);
 247         }
 248
 249         if (retval == ERROR_OK)
 250         {
 251                 retval = flash_erase_address_range(target, do_pad, address, length);
 252         }
 253
 254         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
 255         {
 256                 command_print(CMD_CTX, "erased address 0x%8.8x (length %i)"
 257                                 " in %fs (%0.3f KiB/s)", address, length,
 258                                 duration_elapsed(&bench), duration_kbps(&bench, length));
 259         }
 260
 261         return retval;
 262 }
 263
 264 static int flash_check_sector_parameters(struct command_context *cmd_ctx,
 265                 uint32_t first, uint32_t last, uint32_t num_sectors)
 266 {
 267         if (!(first <= last)) {
 268                 command_print(cmd_ctx, "ERROR: "
 269                                 "first sector must be <= last sector");
 270                 return ERROR_FAIL;
 271         }
 272
 273         if (!(last <= (num_sectors - 1))) {
 274                 command_print(cmd_ctx, "ERROR: last sector must be <= %d",
 275                                 (int) num_sectors - 1);
 276                 return ERROR_FAIL;
 277         }
 278
 279         return ERROR_OK;
 280 }
 281
 282 COMMAND_HANDLER(handle_flash_erase_command)
 283 {
 284         if (CMD_ARGC != 3)
 285                 return ERROR_COMMAND_SYNTAX_ERROR;
 286
 287         uint32_t first;
 288         uint32_t last;
 289
 290         struct flash_bank *p;
 291         int retval;
 292
 293         retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 294         if (retval != ERROR_OK)
 295                 return retval;
 296
 297         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], first);
 298         if (strcmp(CMD_ARGV[2], "last") == 0)
 299                 last = p->num_sectors - 1;
 300         else
 301                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], last);
 302
 303         if ((retval = flash_check_sector_parameters(CMD_CTX,
 304                         first, last, p->num_sectors)) != ERROR_OK)
 305                 return retval;
 306
 307         struct duration bench;
 308         duration_start(&bench);
 309
 310         retval = flash_driver_erase(p, first, last);
 311
 312         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
 313         {
 314                 command_print(CMD_CTX, "erased sectors %" PRIu32 " "
 315                                 "through %" PRIu32" on flash bank %" PRIu32 " "
 316                                 "in %fs", first, last, p->bank_number, duration_elapsed(&bench));
 317         }
 318
 319         return ERROR_OK;
 320 }
 321
 322 COMMAND_HANDLER(handle_flash_protect_command)
 323 {
 324         if (CMD_ARGC != 4)
 325                 return ERROR_COMMAND_SYNTAX_ERROR;
 326
 327         uint32_t first;
 328         uint32_t last;
 329
 330         struct flash_bank *p;
 331         int retval;
 332
 333         retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 334         if (retval != ERROR_OK)
 335                 return retval;
 336
 337         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], first);
 338         if (strcmp(CMD_ARGV[2], "last") == 0)
 339                 last = p->num_sectors - 1;
 340         else
 341                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], last);
 342
 343         bool set;
 344         COMMAND_PARSE_ON_OFF(CMD_ARGV[3], set);
 345
 346         if ((retval = flash_check_sector_parameters(CMD_CTX,
 347                         first, last, p->num_sectors)) != ERROR_OK)
 348                 return retval;
 349
 350         retval = flash_driver_protect(p, set, first, last);
 351         if (retval == ERROR_OK) {
 352                 command_print(CMD_CTX, "%s protection for sectors %i "
 353                                 "through %i on flash bank %" PRIu32 "",
 354                         (set) ? "set" : "cleared", (int) first,
 355                         (int) last, p->bank_number);
 356         }
 357
 358         return ERROR_OK;
 359 }
 360
 361 COMMAND_HANDLER(handle_flash_write_image_command)
 362 {
 363         struct target *target = get_current_target(CMD_CTX);
 364
 365         struct image image;
 366         uint32_t written;
 367
 368         int retval;
 369
 370         if (CMD_ARGC < 1)
 371         {
 372                 return ERROR_COMMAND_SYNTAX_ERROR;
 373         }
 374
 375         /* flash auto-erase is disabled by default*/
 376         int auto_erase = 0;
 377         bool auto_unlock = false;
 378
 379         for (;;)
 380         {
 381                 if (strcmp(CMD_ARGV[0], "erase") == 0)
 382                 {
 383                         auto_erase = 1;
 384                         CMD_ARGV++;
 385                         CMD_ARGC--;
 386                         command_print(CMD_CTX, "auto erase enabled");
 387                 } else if (strcmp(CMD_ARGV[0], "unlock") == 0)
 388                 {
 389                         auto_unlock = true;
 390                         CMD_ARGV++;
 391                         CMD_ARGC--;
 392                         command_print(CMD_CTX, "auto unlock enabled");
 393                 } else
 394                 {
 395                         break;
 396                 }
 397         }
 398
 399         if (CMD_ARGC < 1)
 400         {
 401                 return ERROR_COMMAND_SYNTAX_ERROR;
 402         }
 403
 404         if (!target)
 405         {
 406                 LOG_ERROR("no target selected");
 407                 return ERROR_FAIL;
 408         }
 409
 410         struct duration bench;
 411         duration_start(&bench);
 412
 413         if (CMD_ARGC >= 2)
 414         {
 415                 image.base_address_set = 1;
 416                 COMMAND_PARSE_NUMBER(llong, CMD_ARGV[1], image.base_address);
 417         }
 418         else
 419         {
 420                 image.base_address_set = 0;
 421                 image.base_address = 0x0;
 422         }
 423
 424         image.start_address_set = 0;
 425
 426         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
 427         if (retval != ERROR_OK)
 428         {
 429                 return retval;
 430         }
 431
 432         retval = flash_write_unlock(target, &image, &written, auto_erase, auto_unlock);
 433         if (retval != ERROR_OK)
 434         {
 435                 image_close(&image);
 436                 return retval;
 437         }
 438
 439         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
 440         {
 441                 command_print(CMD_CTX, "wrote %" PRIu32 " bytes from file %s "
 442                                 "in %fs (%0.3f KiB/s)", written, CMD_ARGV[0],
 443                                 duration_elapsed(&bench), duration_kbps(&bench, written));
 444         }
 445
 446         image_close(&image);
 447
 448         return retval;
 449 }
 450
 451 COMMAND_HANDLER(handle_flash_fill_command)
 452 {
 453         int err = ERROR_OK;
 454         uint32_t address;
 455         uint32_t pattern;
 456         uint32_t count;
 457         uint32_t wrote = 0;
 458         uint32_t cur_size = 0;
 459         uint32_t chunk_count;
 460         struct target *target = get_current_target(CMD_CTX);
 461         unsigned i;
 462         uint32_t wordsize;
 463         int retval = ERROR_OK;
 464
 465         static size_t const chunksize = 1024;
 466         uint8_t *chunk = malloc(chunksize);
 467         if (chunk == NULL)
 468                 return ERROR_FAIL;
 469
 470         uint8_t *readback = malloc(chunksize);
 471         if (readback == NULL)
 472         {
 473                 free(chunk);
 474                 return ERROR_FAIL;
 475         }
 476
 477
 478         if (CMD_ARGC != 3)
 479         {
 480                 retval = ERROR_COMMAND_SYNTAX_ERROR;
 481                 goto done;
 482         }
 483
 484
 485         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
 486         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], pattern);
 487         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], count);
 488
 489         if (count == 0)
 490                 goto done;
 491
 492         switch (CMD_NAME[4])
 493         {
 494         case 'w':
 495                 wordsize = 4;
 496                 break;
 497         case 'h':
 498                 wordsize = 2;
 499                 break;
 500         case 'b':
 501                 wordsize = 1;
 502                 break;
 503         default:
 504                 retval = ERROR_COMMAND_SYNTAX_ERROR;
 505                 goto done;
 506         }
 507
 508         chunk_count = MIN(count, (chunksize / wordsize));
 509         switch (wordsize)
 510         {
 511         case 4:
 512                 for (i = 0; i < chunk_count; i++)
 513                 {
 514                         target_buffer_set_u32(target, chunk + i * wordsize, pattern);
 515                 }
 516                 break;
 517         case 2:
 518                 for (i = 0; i < chunk_count; i++)
 519                 {
 520                         target_buffer_set_u16(target, chunk + i * wordsize, pattern);
 521                 }
 522                 break;
 523         case 1:
 524                 memset(chunk, pattern, chunk_count);
 525                 break;
 526         default:
 527                 LOG_ERROR("BUG: can't happen");
 528                 exit(-1);
 529         }
 530
 531         struct duration bench;
 532         duration_start(&bench);
 533
 534         for (wrote = 0; wrote < (count*wordsize); wrote += cur_size)
 535         {
 536                 struct flash_bank *bank;
 537
 538                 retval = get_flash_bank_by_addr(target, address, true, &bank );
 539                 if (retval != ERROR_OK)
 540                         goto done;
 541
 542                 cur_size = MIN((count * wordsize - wrote), chunksize);
 543                 err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
 544                 if (err != ERROR_OK)
 545                 {
 546                         retval = err;
 547                         goto done;
 548                 }
 549
 550                 err = flash_driver_read(bank, readback, address - bank->base + wrote, cur_size);
 551                 if (err != ERROR_OK)
 552                 {
 553                         retval = err;
 554                         goto done;
 555                 }
 556
 557                 for (i = 0; i < cur_size; i++)
 558                 {
 559                         if (readback[i]!=chunk[i])
 560                         {
 561                                 LOG_ERROR("Verification error address 0x%08" PRIx32 ", read back 0x%02x, expected 0x%02x",
 562                                                   address + wrote + i, readback[i], chunk[i]);
 563                                 retval = ERROR_FAIL;
 564                                 goto done;
 565                         }
 566                 }
 567         }
 568
 569         if ((retval == ERROR_OK) && (duration_measure(&bench) == ERROR_OK))
 570         {
 571                 command_print(CMD_CTX, "wrote %" PRIu32 " bytes to 0x%8.8" PRIx32
 572                                 " in %fs (%0.3f KiB/s)", wrote, address,
 573                                 duration_elapsed(&bench), duration_kbps(&bench, wrote));
 574         }
 575
 576 done:
 577         free(readback);
 578         free(chunk);
 579
 580         return retval;
 581 }
 582
 583 COMMAND_HANDLER(handle_flash_write_bank_command)
 584 {
 585         uint32_t offset;
 586         uint8_t *buffer;
 587         struct fileio fileio;
 588
 589         if (CMD_ARGC != 3)
 590                 return ERROR_COMMAND_SYNTAX_ERROR;
 591
 592         struct duration bench;
 593         duration_start(&bench);
 594
 595         struct flash_bank *p;
 596         int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 597         if (ERROR_OK != retval)
 598                 return retval;
 599
 600         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], offset);
 601
 602         if (fileio_open(&fileio, CMD_ARGV[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 603         {
 604                 return ERROR_OK;
 605         }
 606
 607         buffer = malloc(fileio.size);
 608         size_t buf_cnt;
 609         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 610         {
 611                 free(buffer);
 612                 fileio_close(&fileio);
 613                 return ERROR_OK;
 614         }
 615
 616         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 617
 618         free(buffer);
 619         buffer = NULL;
 620
 621         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
 622         {
 623                 command_print(CMD_CTX, "wrote %ld bytes from file %s to flash bank %u"
 624                                 " at offset 0x%8.8" PRIx32 " in %fs (%0.3f KiB/s)",
 625                                 (long)fileio.size, CMD_ARGV[1], p->bank_number, offset,
 626                                 duration_elapsed(&bench), duration_kbps(&bench, fileio.size));
 627         }
 628
 629         fileio_close(&fileio);
 630
 631         return retval;
 632 }
 633
 634 void flash_set_dirty(void)
 635 {
 636         struct flash_bank *c;
 637         int i;
 638
 639         /* set all flash to require erasing */
 640         for (c = flash_bank_list(); c; c = c->next)
 641         {
 642                 for (i = 0; i < c->num_sectors; i++)
 643                 {
 644                         c->sectors[i].is_erased = 0;
 645                 }
 646         }
 647 }
 648
 649 static const struct command_registration flash_exec_command_handlers[] = {
 650         {
 651                 .name = "probe",
 652                 .handler = handle_flash_probe_command,
 653                 .mode = COMMAND_EXEC,
 654                 .usage = "bank_id",
 655                 .help = "Identify a flash bank.",
 656         },
 657         {
 658                 .name = "info",
 659                 .handler = handle_flash_info_command,
 660                 .mode = COMMAND_EXEC,
 661                 .usage = "bank_id",
 662                 .help = "Print information about a flash bank.",
 663         },
 664         {
 665                 .name = "erase_check",
 666                 .handler = handle_flash_erase_check_command,
 667                 .mode = COMMAND_EXEC,
 668                 .usage = "bank_id",
 669                 .help = "Check erase state of all blocks in a "
 670                         "flash bank.",
 671         },
 672         {
 673                 .name = "erase_sector",
 674                 .handler = handle_flash_erase_command,
 675                 .mode = COMMAND_EXEC,
 676                 .usage = "bank_id first_sector_num last_sector_num",
 677                 .help = "Erase a range of sectors in a flash bank.",
 678         },
 679         {
 680                 .name = "erase_address",
 681                 .handler = handle_flash_erase_address_command,
 682                 .mode = COMMAND_EXEC,
 683                 .usage = "['pad'] ['unlock'] address length",
 684                 .help = "Erase flash sectors starting at address and "
 685                         "continuing for length bytes.  If 'pad' is specified, "
 686                         "data outside that range may also be erased: the start "
 687                         "address may be decreased, and length increased, so "
 688                         "that all of the first and last sectors are erased. "
 689                         "If 'unlock' is specified, then the flash is unprotected "
 690                         "before erasing.",
 691
 692         },
 693         {
 694                 .name = "fillw",
 695                 .handler = handle_flash_fill_command,
 696                 .mode = COMMAND_EXEC,
 697                 .usage = "address value n",
 698                 .help = "Fill n words with 32-bit value, starting at "
 699                         "word address.  (No autoerase.)",
 700         },
 701         {
 702                 .name = "fillh",
 703                 .handler = handle_flash_fill_command,
 704                 .mode = COMMAND_EXEC,
 705                 .usage = "address value n",
 706                 .help = "Fill n halfwords with 16-bit value, starting at "
 707                         "word address.  (No autoerase.)",
 708         },
 709         {
 710                 .name = "fillb",
 711                 .handler = handle_flash_fill_command,
 712                 .mode = COMMAND_EXEC,
 713                 .usage = "address value n",
 714                 .help = "Fill n bytes with 8-bit value, starting at "
 715                         "word address.  (No autoerase.)",
 716         },
 717         {
 718                 .name = "write_bank",
 719                 .handler = handle_flash_write_bank_command,
 720                 .mode = COMMAND_EXEC,
 721                 .usage = "bank_id filename offset",
 722                 .help = "Write binary data from file to flash bank, "
 723                         "starting at specified byte offset from the "
 724                         "beginning of the bank.",
 725         },
 726         {
 727                 .name = "write_image",
 728                 .handler = handle_flash_write_image_command,
 729                 .mode = COMMAND_EXEC,
 730                 .usage = "[erase] [unlock] filename [offset [file_type]]",
 731                 .help = "Write an image to flash.  Optionally first unprotect "
 732                         "and/or erase the region to be used.  Allow optional "
 733                         "offset from beginning of bank (defaults to zero)",
 734         },
 735         {
 736                 .name = "protect",
 737                 .handler = handle_flash_protect_command,
 738                 .mode = COMMAND_EXEC,
 739                 .usage = "bank_id first_sector [last_sector|'last'] "
 740                         "('on'|'off')",
 741                 .help = "Turn protection on or off for a range of sectors "
 742                         "in a given flash bank.",
 743         },
 744         COMMAND_REGISTRATION_DONE
 745 };
 746
 747 static int flash_init_drivers(struct command_context *cmd_ctx)
 748 {
 749         if (!flash_bank_list())
 750                 return ERROR_OK;
 751
 752         struct command *parent = command_find_in_context(cmd_ctx, "flash");
 753         return register_commands(cmd_ctx, parent, flash_exec_command_handlers);
 754 }
 755
 756
 757 COMMAND_HANDLER(handle_flash_bank_command)
 758 {
 759         if (CMD_ARGC < 7)
 760         {
 761                 LOG_ERROR("usage: flash bank <name> <driver> "
 762                                 "<base> <size> <chip_width> <bus_width> <target>");
 763                 return ERROR_COMMAND_SYNTAX_ERROR;
 764         }
 765         // save bank name and advance arguments for compatibility
 766         const char *bank_name = *CMD_ARGV++;
 767         CMD_ARGC--;
 768
 769         struct target *target;
 770         if ((target = get_target(CMD_ARGV[5])) == NULL)
 771         {
 772                 LOG_ERROR("target '%s' not defined", CMD_ARGV[5]);
 773                 return ERROR_FAIL;
 774         }
 775
 776         const char *driver_name = CMD_ARGV[0];
 777         struct flash_driver *driver = flash_driver_find_by_name(driver_name);
 778         if (NULL == driver)
 779         {
 780                 /* no matching flash driver found */
 781                 LOG_ERROR("flash driver '%s' not found", driver_name);
 782                 return ERROR_FAIL;
 783         }
 784
 785         /* check the flash bank name is unique */
 786         if (get_flash_bank_by_name_noprobe(bank_name) != NULL)
 787         {
 788                 /* flash bank name already exists  */
 789                 LOG_ERROR("flash bank name '%s' already exists", bank_name);
 790                 return ERROR_FAIL;
 791         }
 792
 793         /* register flash specific commands */
 794         if (NULL != driver->commands)
 795         {
 796                 int retval = register_commands(CMD_CTX, NULL,
 797                                 driver->commands);
 798                 if (ERROR_OK != retval)
 799                 {
 800                         LOG_ERROR("couldn't register '%s' commands",
 801                                         driver_name);
 802                         return ERROR_FAIL;
 803                 }
 804         }
 805
 806         struct flash_bank *c = malloc(sizeof(*c));
 807         c->name = strdup(bank_name);
 808         c->target = target;
 809         c->driver = driver;
 810         c->driver_priv = NULL;
 811         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], c->base);
 812         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], c->size);
 813         COMMAND_PARSE_NUMBER(int, CMD_ARGV[3], c->chip_width);
 814         COMMAND_PARSE_NUMBER(int, CMD_ARGV[4], c->bus_width);
 815         c->num_sectors = 0;
 816         c->sectors = NULL;
 817         c->next = NULL;
 818
 819         int retval;
 820         retval = CALL_COMMAND_HANDLER(driver->flash_bank_command, c);
 821         if (ERROR_OK != retval)
 822         {
 823                 LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8" PRIx32,
 824                                 driver_name, c->base);
 825                 free(c);
 826                 return retval;
 827         }
 828
 829         flash_bank_add(c);
 830
 831         return ERROR_OK;
 832 }
 833
 834 COMMAND_HANDLER(handle_flash_banks_command)
 835 {
 836         if (CMD_ARGC != 0)
 837                 return ERROR_INVALID_ARGUMENTS;
 838
 839         unsigned n = 0;
 840         for (struct flash_bank *p = flash_bank_list(); p; p = p->next, n++)
 841         {
 842                 LOG_USER("#%" PRIu32 " : %s at 0x%8.8" PRIx32 ", size 0x%8.8" PRIx32 ", "
 843                         "buswidth %u, chipwidth %u", p->bank_number,
 844                         p->driver->name, p->base, p->size,
 845                         p->bus_width, p->chip_width);
 846         }
 847         return ERROR_OK;
 848 }
 849
 850 static int jim_flash_list(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 851 {
 852         if (argc != 1)
 853         {
 854                 Jim_WrongNumArgs(interp, 1, argv,
 855                                 "no arguments to 'flash list' command");
 856                 return JIM_ERR;
 857         }
 858
 859         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
 860
 861         for (struct flash_bank *p = flash_bank_list(); p; p = p->next)
 862         {
 863                 Jim_Obj *elem = Jim_NewListObj(interp, NULL, 0);
 864
 865                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
 866                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
 867                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
 868                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
 869                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
 870                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
 871                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
 872                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
 873                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
 874                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
 875
 876                 Jim_ListAppendElement(interp, list, elem);
 877         }
 878
 879         Jim_SetResult(interp, list);
 880
 881         return JIM_OK;
 882 }
 883
 884
 885 COMMAND_HANDLER(handle_flash_init_command)
 886 {
 887         if (CMD_ARGC != 0)
 888                 return ERROR_COMMAND_SYNTAX_ERROR;
 889
 890         static bool flash_initialized = false;
 891         if (flash_initialized)
 892         {
 893                 LOG_INFO("'flash init' has already been called");
 894                 return ERROR_OK;
 895         }
 896         flash_initialized = true;
 897
 898         LOG_DEBUG("Initializing flash devices...");
 899         return flash_init_drivers(CMD_CTX);
 900 }
 901
 902 static const struct command_registration flash_config_command_handlers[] = {
 903         {
 904                 .name = "bank",
 905                 .handler = handle_flash_bank_command,
 906                 .mode = COMMAND_CONFIG,
 907                 .usage = "bank_id driver_name base_address size_bytes "
 908                         "chip_width_bytes bus_width_bytes target "
 909                         "[driver_options ...]",
 910                 .help = "Define a new bank with the given name, "
 911                         "using the specified NOR flash driver.",
 912         },
 913         {
 914                 .name = "init",
 915                 .mode = COMMAND_CONFIG,
 916                 .handler = handle_flash_init_command,
 917                 .help = "Initialize flash devices.",
 918         },
 919         {
 920                 .name = "banks",
 921                 .mode = COMMAND_ANY,
 922                 .handler = handle_flash_banks_command,
 923                 .help = "Display table with information about flash banks.",
 924         },
 925         {
 926                 .name = "list",
 927                 .mode = COMMAND_ANY,
 928                 .jim_handler = jim_flash_list,
 929                 .help = "Returns a list of details about the flash banks.",
 930         },
 931         COMMAND_REGISTRATION_DONE
 932 };
 933 static const struct command_registration flash_command_handlers[] = {
 934         {
 935                 .name = "flash",
 936                 .mode = COMMAND_ANY,
 937                 .help = "NOR flash command group",
 938                 .chain = flash_config_command_handlers,
 939         },
 940         COMMAND_REGISTRATION_DONE
 941 };
 942
 943 int flash_register_commands(struct command_context *cmd_ctx)
 944 {
 945         return register_commands(cmd_ctx, NULL, flash_command_handlers);
 946 }