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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  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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 COMMAND_HANDLER(handle_flash_info_command)
  51 {
  52         struct flash_bank *p;
  53         int j = 0;
  54         int retval;
  55
  56         if (CMD_ARGC != 1)
  57                 return ERROR_COMMAND_SYNTAX_ERROR;
  58
  59         retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
  60         if (retval != ERROR_OK)
  61                 return retval;
  62
  63         if (p != NULL) {
  64                 char buf[1024];
  65
  66                 /* attempt auto probe */
  67                 retval = p->driver->auto_probe(p);
  68                 if (retval != ERROR_OK)
  69                         return retval;
  70
  71                 /* We must query the hardware to avoid printing stale information! */
  72                 retval = p->driver->protect_check(p);
  73                 if (retval != ERROR_OK)
  74                         return retval;
  75
  76                 command_print(CMD_CTX,
  77                         "#%" PRIu32 " : %s at 0x%8.8" PRIx32 ", size 0x%8.8" PRIx32
  78                         ", 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                         char *protect_state;
  87
  88                         if (p->sectors[j].is_protected == 0)
  89                                 protect_state = "not protected";
  90                         else if (p->sectors[j].is_protected == 1)
  91                                 protect_state = "protected";
  92                         else
  93                                 protect_state = "protection state unknown";
  94
  95                         command_print(CMD_CTX,
  96                                 "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
  97                                 j,
  98                                 p->sectors[j].offset,
  99                                 p->sectors[j].size,
 100                                 p->sectors[j].size >> 10,
 101                                 protect_state);
 102                 }
 103
 104                 if (p->driver->info != NULL) {
 105                         retval = p->driver->info(p, buf, sizeof(buf));
 106                         if (retval == ERROR_OK)
 107                                 command_print(CMD_CTX, "%s", buf);
 108                         else
 109                                 LOG_ERROR("error retrieving flash info");
 110                 }
 111         }
 112
 113         return retval;
 114 }
 115
 116 COMMAND_HANDLER(handle_flash_probe_command)
 117 {
 118         struct flash_bank *p;
 119         int retval;
 120
 121         if (CMD_ARGC != 1)
 122                 return ERROR_COMMAND_SYNTAX_ERROR;
 123
 124         retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 125         if (retval != ERROR_OK)
 126                 return retval;
 127
 128         if (p) {
 129                 retval = p->driver->probe(p);
 130                 if (retval == ERROR_OK)
 131                         command_print(CMD_CTX,
 132                                 "flash '%s' found at 0x%8.8" PRIx32,
 133                                 p->driver->name,
 134                                 p->base);
 135         } else {
 136                 command_print(CMD_CTX, "flash bank '#%s' is out of bounds", CMD_ARGV[0]);
 137                 retval = ERROR_FAIL;
 138         }
 139
 140         return retval;
 141 }
 142
 143 COMMAND_HANDLER(handle_flash_erase_check_command)
 144 {
 145         if (CMD_ARGC != 1)
 146                 return ERROR_COMMAND_SYNTAX_ERROR;
 147
 148         struct flash_bank *p;
 149         int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 150         if (ERROR_OK != retval)
 151                 return retval;
 152
 153         int j;
 154         retval = p->driver->erase_check(p);
 155         if (retval == ERROR_OK)
 156                 command_print(CMD_CTX, "successfully checked erase state");
 157         else {
 158                 command_print(CMD_CTX,
 159                         "unknown error when checking erase state of flash bank #%s at 0x%8.8" PRIx32,
 160                         CMD_ARGV[0],
 161                         p->base);
 162         }
 163
 164         for (j = 0; j < p->num_sectors; j++) {
 165                 char *erase_state;
 166
 167                 if (p->sectors[j].is_erased == 0)
 168                         erase_state = "not erased";
 169                 else if (p->sectors[j].is_erased == 1)
 170                         erase_state = "erased";
 171                 else
 172                         erase_state = "erase state unknown";
 173
 174                 command_print(CMD_CTX,
 175                         "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
 176                         j,
 177                         p->sectors[j].offset,
 178                         p->sectors[j].size,
 179                         p->sectors[j].size >> 10,
 180                         erase_state);
 181         }
 182
 183         return retval;
 184 }
 185
 186 COMMAND_HANDLER(handle_flash_erase_address_command)
 187 {
 188         struct flash_bank *p;
 189         int retval = ERROR_OK;
 190         uint32_t address;
 191         uint32_t length;
 192         bool do_pad = false;
 193         bool do_unlock = false;
 194         struct target *target = get_current_target(CMD_CTX);
 195
 196         while (CMD_ARGC >= 3) {
 197                 /* Optionally pad out the address range to block/sector
 198                  * boundaries.  We can't know if there's data in that part
 199                  * of the flash; only do padding if we're told to.
 200                  */
 201                 if (strcmp("pad", CMD_ARGV[0]) == 0)
 202                         do_pad = true;
 203                 else if (strcmp("unlock", CMD_ARGV[0]) == 0)
 204                         do_unlock = true;
 205                 else
 206                         return ERROR_COMMAND_SYNTAX_ERROR;
 207                 CMD_ARGC--;
 208                 CMD_ARGV++;
 209         }
 210         if (CMD_ARGC != 2)
 211                 return ERROR_COMMAND_SYNTAX_ERROR;
 212
 213         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
 214         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], length);
 215
 216         if (length <= 0) {
 217                 command_print(CMD_CTX, "Length must be >0");
 218                 return ERROR_COMMAND_SYNTAX_ERROR;
 219         }
 220
 221         retval = get_flash_bank_by_addr(target, address, true, &p);
 222         if (retval != ERROR_OK)
 223                 return retval;
 224
 225         /* We can't know if we did a resume + halt, in which case we no longer know the erased state
 226          **/
 227         flash_set_dirty();
 228
 229         struct duration bench;
 230         duration_start(&bench);
 231
 232         if (do_unlock)
 233                 retval = flash_unlock_address_range(target, address, length);
 234
 235         if (retval == ERROR_OK)
 236                 retval = flash_erase_address_range(target, do_pad, address, length);
 237
 238         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
 239                 command_print(CMD_CTX, "erased address 0x%8.8x (length %i)"
 240                         " in %fs (%0.3f KiB/s)", address, length,
 241                         duration_elapsed(&bench), duration_kbps(&bench, length));
 242         }
 243
 244         return retval;
 245 }
 246
 247 static int flash_check_sector_parameters(struct command_context *cmd_ctx,
 248         uint32_t first, uint32_t last, uint32_t num_sectors)
 249 {
 250         if (!(first <= last)) {
 251                 command_print(cmd_ctx, "ERROR: "
 252                         "first sector must be <= last sector");
 253                 return ERROR_FAIL;
 254         }
 255
 256         if (!(last <= (num_sectors - 1))) {
 257                 command_print(cmd_ctx, "ERROR: last sector must be <= %d",
 258                         (int) num_sectors - 1);
 259                 return ERROR_FAIL;
 260         }
 261
 262         return ERROR_OK;
 263 }
 264
 265 COMMAND_HANDLER(handle_flash_erase_command)
 266 {
 267         if (CMD_ARGC != 3)
 268                 return ERROR_COMMAND_SYNTAX_ERROR;
 269
 270         uint32_t first;
 271         uint32_t last;
 272
 273         struct flash_bank *p;
 274         int retval;
 275
 276         retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 277         if (retval != ERROR_OK)
 278                 return retval;
 279
 280         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], first);
 281         if (strcmp(CMD_ARGV[2], "last") == 0)
 282                 last = p->num_sectors - 1;
 283         else
 284                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], last);
 285
 286         retval = flash_check_sector_parameters(CMD_CTX, first, last, p->num_sectors);
 287         if (retval != ERROR_OK)
 288                 return retval;
 289
 290         struct duration bench;
 291         duration_start(&bench);
 292
 293         retval = flash_driver_erase(p, first, last);
 294
 295         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
 296                 command_print(CMD_CTX, "erased sectors %" PRIu32 " "
 297                         "through %" PRIu32 " on flash bank %" PRIu32 " "
 298                         "in %fs", first, last, p->bank_number, duration_elapsed(&bench));
 299         }
 300
 301         return ERROR_OK;
 302 }
 303
 304 COMMAND_HANDLER(handle_flash_protect_command)
 305 {
 306         if (CMD_ARGC != 4)
 307                 return ERROR_COMMAND_SYNTAX_ERROR;
 308
 309         uint32_t first;
 310         uint32_t last;
 311
 312         struct flash_bank *p;
 313         int retval;
 314
 315         retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 316         if (retval != ERROR_OK)
 317                 return retval;
 318
 319         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], first);
 320         if (strcmp(CMD_ARGV[2], "last") == 0)
 321                 last = p->num_sectors - 1;
 322         else
 323                 COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], last);
 324
 325         bool set;
 326         COMMAND_PARSE_ON_OFF(CMD_ARGV[3], set);
 327
 328         retval = flash_check_sector_parameters(CMD_CTX, first, last, p->num_sectors);
 329         if (retval != ERROR_OK)
 330                 return retval;
 331
 332         retval = flash_driver_protect(p, set, first, last);
 333         if (retval == ERROR_OK) {
 334                 command_print(CMD_CTX, "%s protection for sectors %i "
 335                         "through %i on flash bank %" PRIu32 "",
 336                         (set) ? "set" : "cleared", (int) first,
 337                         (int) last, p->bank_number);
 338         }
 339
 340         return retval;
 341 }
 342
 343 COMMAND_HANDLER(handle_flash_write_image_command)
 344 {
 345         struct target *target = get_current_target(CMD_CTX);
 346
 347         struct image image;
 348         uint32_t written;
 349
 350         int retval;
 351
 352         if (CMD_ARGC < 1)
 353                 return ERROR_COMMAND_SYNTAX_ERROR;
 354
 355         /* flash auto-erase is disabled by default*/
 356         int auto_erase = 0;
 357         bool auto_unlock = false;
 358
 359         for (;; ) {
 360                 if (strcmp(CMD_ARGV[0], "erase") == 0) {
 361                         auto_erase = 1;
 362                         CMD_ARGV++;
 363                         CMD_ARGC--;
 364                         command_print(CMD_CTX, "auto erase enabled");
 365                 } else if (strcmp(CMD_ARGV[0], "unlock") == 0) {
 366                         auto_unlock = true;
 367                         CMD_ARGV++;
 368                         CMD_ARGC--;
 369                         command_print(CMD_CTX, "auto unlock enabled");
 370                 } else
 371                         break;
 372         }
 373
 374         if (CMD_ARGC < 1)
 375                 return ERROR_COMMAND_SYNTAX_ERROR;
 376
 377         if (!target) {
 378                 LOG_ERROR("no target selected");
 379                 return ERROR_FAIL;
 380         }
 381
 382         struct duration bench;
 383         duration_start(&bench);
 384
 385         if (CMD_ARGC >= 2) {
 386                 image.base_address_set = 1;
 387                 COMMAND_PARSE_NUMBER(llong, CMD_ARGV[1], image.base_address);
 388         } else {
 389                 image.base_address_set = 0;
 390                 image.base_address = 0x0;
 391         }
 392
 393         image.start_address_set = 0;
 394
 395         retval = image_open(&image, CMD_ARGV[0], (CMD_ARGC == 3) ? CMD_ARGV[2] : NULL);
 396         if (retval != ERROR_OK)
 397                 return retval;
 398
 399         retval = flash_write_unlock(target, &image, &written, auto_erase, auto_unlock);
 400         if (retval != ERROR_OK) {
 401                 image_close(&image);
 402                 return retval;
 403         }
 404
 405         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
 406                 command_print(CMD_CTX, "wrote %" PRIu32 " bytes from file %s "
 407                         "in %fs (%0.3f KiB/s)", written, CMD_ARGV[0],
 408                         duration_elapsed(&bench), duration_kbps(&bench, written));
 409         }
 410
 411         image_close(&image);
 412
 413         return retval;
 414 }
 415
 416 COMMAND_HANDLER(handle_flash_fill_command)
 417 {
 418         int err = ERROR_OK;
 419         uint32_t address;
 420         uint32_t pattern;
 421         uint32_t count;
 422         uint32_t wrote = 0;
 423         uint32_t cur_size = 0;
 424         uint32_t chunk_count;
 425         struct target *target = get_current_target(CMD_CTX);
 426         unsigned i;
 427         uint32_t wordsize;
 428         int retval = ERROR_OK;
 429
 430         static size_t const chunksize = 1024;
 431         uint8_t *chunk = NULL, *readback = NULL;
 432
 433         if (CMD_ARGC != 3) {
 434                 retval = ERROR_COMMAND_SYNTAX_ERROR;
 435                 goto done;
 436         }
 437
 438         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
 439         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], pattern);
 440         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], count);
 441
 442         chunk = malloc(chunksize);
 443         if (chunk == NULL)
 444                 return ERROR_FAIL;
 445
 446         readback = malloc(chunksize);
 447         if (readback == NULL) {
 448                 free(chunk);
 449                 return ERROR_FAIL;
 450         }
 451
 452         if (count == 0)
 453                 goto done;
 454
 455         switch (CMD_NAME[4]) {
 456                 case 'w':
 457                         wordsize = 4;
 458                         break;
 459                 case 'h':
 460                         wordsize = 2;
 461                         break;
 462                 case 'b':
 463                         wordsize = 1;
 464                         break;
 465                 default:
 466                         retval = ERROR_COMMAND_SYNTAX_ERROR;
 467                         goto done;
 468         }
 469
 470         chunk_count = MIN(count, (chunksize / wordsize));
 471         switch (wordsize) {
 472                 case 4:
 473                         for (i = 0; i < chunk_count; i++)
 474                                 target_buffer_set_u32(target, chunk + i * wordsize, pattern);
 475                         break;
 476                 case 2:
 477                         for (i = 0; i < chunk_count; i++)
 478                                 target_buffer_set_u16(target, chunk + i * wordsize, pattern);
 479                         break;
 480                 case 1:
 481                         memset(chunk, pattern, chunk_count);
 482                         break;
 483                 default:
 484                         LOG_ERROR("BUG: can't happen");
 485                         exit(-1);
 486         }
 487
 488         struct duration bench;
 489         duration_start(&bench);
 490
 491         for (wrote = 0; wrote < (count*wordsize); wrote += cur_size) {
 492                 struct flash_bank *bank;
 493
 494                 retval = get_flash_bank_by_addr(target, address, true, &bank);
 495                 if (retval != ERROR_OK)
 496                         goto done;
 497
 498                 cur_size = MIN((count * wordsize - wrote), chunksize);
 499                 err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
 500                 if (err != ERROR_OK) {
 501                         retval = err;
 502                         goto done;
 503                 }
 504
 505                 err = flash_driver_read(bank, readback, address - bank->base + wrote, cur_size);
 506                 if (err != ERROR_OK) {
 507                         retval = err;
 508                         goto done;
 509                 }
 510
 511                 for (i = 0; i < cur_size; i++) {
 512                         if (readback[i] != chunk[i]) {
 513                                 LOG_ERROR(
 514                                         "Verification error address 0x%08" PRIx32 ", read back 0x%02x, expected 0x%02x",
 515                                         address + wrote + i,
 516                                         readback[i],
 517                                         chunk[i]);
 518                                 retval = ERROR_FAIL;
 519                                 goto done;
 520                         }
 521                 }
 522         }
 523
 524         if ((retval == ERROR_OK) && (duration_measure(&bench) == ERROR_OK)) {
 525                 command_print(CMD_CTX, "wrote %" PRIu32 " bytes to 0x%8.8" PRIx32
 526                         " in %fs (%0.3f KiB/s)", wrote, address,
 527                         duration_elapsed(&bench), duration_kbps(&bench, wrote));
 528         }
 529
 530 done:
 531         free(readback);
 532         free(chunk);
 533
 534         return retval;
 535 }
 536
 537 COMMAND_HANDLER(handle_flash_write_bank_command)
 538 {
 539         uint32_t offset;
 540         uint8_t *buffer;
 541         struct fileio fileio;
 542
 543         if (CMD_ARGC != 3)
 544                 return ERROR_COMMAND_SYNTAX_ERROR;
 545
 546         struct duration bench;
 547         duration_start(&bench);
 548
 549         struct flash_bank *p;
 550         int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 551         if (ERROR_OK != retval)
 552                 return retval;
 553
 554         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], offset);
 555
 556         if (fileio_open(&fileio, CMD_ARGV[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 557                 return ERROR_OK;
 558
 559         int filesize;
 560         retval = fileio_size(&fileio, &filesize);
 561         if (retval != ERROR_OK) {
 562                 fileio_close(&fileio);
 563                 return retval;
 564         }
 565
 566         buffer = malloc(filesize);
 567         if (buffer == NULL) {
 568                 fileio_close(&fileio);
 569                 LOG_ERROR("Out of memory");
 570                 return ERROR_FAIL;
 571         }
 572         size_t buf_cnt;
 573         if (fileio_read(&fileio, filesize, buffer, &buf_cnt) != ERROR_OK) {
 574                 free(buffer);
 575                 fileio_close(&fileio);
 576                 return ERROR_OK;
 577         }
 578
 579         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 580
 581         free(buffer);
 582         buffer = NULL;
 583
 584         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK)) {
 585                 command_print(CMD_CTX, "wrote %ld bytes from file %s to flash bank %u"
 586                         " at offset 0x%8.8" PRIx32 " in %fs (%0.3f KiB/s)",
 587                         (long)filesize, CMD_ARGV[1], p->bank_number, offset,
 588                         duration_elapsed(&bench), duration_kbps(&bench, filesize));
 589         }
 590
 591         fileio_close(&fileio);
 592
 593         return retval;
 594 }
 595
 596 void flash_set_dirty(void)
 597 {
 598         struct flash_bank *c;
 599         int i;
 600
 601         /* set all flash to require erasing */
 602         for (c = flash_bank_list(); c; c = c->next) {
 603                 for (i = 0; i < c->num_sectors; i++)
 604                         c->sectors[i].is_erased = 0;
 605         }
 606 }
 607
 608 COMMAND_HANDLER(handle_flash_padded_value_command)
 609 {
 610         if (CMD_ARGC != 2)
 611                 return ERROR_COMMAND_SYNTAX_ERROR;
 612
 613         struct flash_bank *p;
 614         int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &p);
 615         if (ERROR_OK != retval)
 616                 return retval;
 617
 618         COMMAND_PARSE_NUMBER(u8, CMD_ARGV[1], p->default_padded_value);
 619
 620         command_print(CMD_CTX, "Default padded value set to 0x%" PRIx8 " for flash bank %u", \
 621                         p->default_padded_value, p->bank_number);
 622
 623         return retval;
 624 }
 625
 626 static const struct command_registration flash_exec_command_handlers[] = {
 627         {
 628                 .name = "probe",
 629                 .handler = handle_flash_probe_command,
 630                 .mode = COMMAND_EXEC,
 631                 .usage = "bank_id",
 632                 .help = "Identify a flash bank.",
 633         },
 634         {
 635                 .name = "info",
 636                 .handler = handle_flash_info_command,
 637                 .mode = COMMAND_EXEC,
 638                 .usage = "bank_id",
 639                 .help = "Print information about a flash bank.",
 640         },
 641         {
 642                 .name = "erase_check",
 643                 .handler = handle_flash_erase_check_command,
 644                 .mode = COMMAND_EXEC,
 645                 .usage = "bank_id",
 646                 .help = "Check erase state of all blocks in a "
 647                         "flash bank.",
 648         },
 649         {
 650                 .name = "erase_sector",
 651                 .handler = handle_flash_erase_command,
 652                 .mode = COMMAND_EXEC,
 653                 .usage = "bank_id first_sector_num last_sector_num",
 654                 .help = "Erase a range of sectors in a flash bank.",
 655         },
 656         {
 657                 .name = "erase_address",
 658                 .handler = handle_flash_erase_address_command,
 659                 .mode = COMMAND_EXEC,
 660                 .usage = "['pad'] ['unlock'] address length",
 661                 .help = "Erase flash sectors starting at address and "
 662                         "continuing for length bytes.  If 'pad' is specified, "
 663                         "data outside that range may also be erased: the start "
 664                         "address may be decreased, and length increased, so "
 665                         "that all of the first and last sectors are erased. "
 666                         "If 'unlock' is specified, then the flash is unprotected "
 667                         "before erasing.",
 668
 669         },
 670         {
 671                 .name = "fillw",
 672                 .handler = handle_flash_fill_command,
 673                 .mode = COMMAND_EXEC,
 674                 .usage = "address value n",
 675                 .help = "Fill n words with 32-bit value, starting at "
 676                         "word address.  (No autoerase.)",
 677         },
 678         {
 679                 .name = "fillh",
 680                 .handler = handle_flash_fill_command,
 681                 .mode = COMMAND_EXEC,
 682                 .usage = "address value n",
 683                 .help = "Fill n halfwords with 16-bit value, starting at "
 684                         "word address.  (No autoerase.)",
 685         },
 686         {
 687                 .name = "fillb",
 688                 .handler = handle_flash_fill_command,
 689                 .mode = COMMAND_EXEC,
 690                 .usage = "address value n",
 691                 .help = "Fill n bytes with 8-bit value, starting at "
 692                         "word address.  (No autoerase.)",
 693         },
 694         {
 695                 .name = "write_bank",
 696                 .handler = handle_flash_write_bank_command,
 697                 .mode = COMMAND_EXEC,
 698                 .usage = "bank_id filename offset",
 699                 .help = "Write binary data from file to flash bank, "
 700                         "starting at specified byte offset from the "
 701                         "beginning of the bank.",
 702         },
 703         {
 704                 .name = "write_image",
 705                 .handler = handle_flash_write_image_command,
 706                 .mode = COMMAND_EXEC,
 707                 .usage = "[erase] [unlock] filename [offset [file_type]]",
 708                 .help = "Write an image to flash.  Optionally first unprotect "
 709                         "and/or erase the region to be used.  Allow optional "
 710                         "offset from beginning of bank (defaults to zero)",
 711         },
 712         {
 713                 .name = "protect",
 714                 .handler = handle_flash_protect_command,
 715                 .mode = COMMAND_EXEC,
 716                 .usage = "bank_id first_sector [last_sector|'last'] "
 717                         "('on'|'off')",
 718                 .help = "Turn protection on or off for a range of sectors "
 719                         "in a given flash bank.",
 720         },
 721         {
 722                 .name = "padded_value",
 723                 .handler = handle_flash_padded_value_command,
 724                 .mode = COMMAND_EXEC,
 725                 .usage = "bank_id value",
 726                 .help = "Set default flash padded value",
 727         },
 728         COMMAND_REGISTRATION_DONE
 729 };
 730
 731 static int flash_init_drivers(struct command_context *cmd_ctx)
 732 {
 733         if (!flash_bank_list())
 734                 return ERROR_OK;
 735
 736         struct command *parent = command_find_in_context(cmd_ctx, "flash");
 737         return register_commands(cmd_ctx, parent, flash_exec_command_handlers);
 738 }
 739
 740 COMMAND_HANDLER(handle_flash_bank_command)
 741 {
 742         if (CMD_ARGC < 7) {
 743                 LOG_ERROR("usage: flash bank <name> <driver> "
 744                         "<base> <size> <chip_width> <bus_width> <target>");
 745                 return ERROR_COMMAND_SYNTAX_ERROR;
 746         }
 747         /* save bank name and advance arguments for compatibility */
 748         const char *bank_name = *CMD_ARGV++;
 749         CMD_ARGC--;
 750
 751         struct target *target = get_target(CMD_ARGV[5]);
 752         if (target == NULL) {
 753                 LOG_ERROR("target '%s' not defined", CMD_ARGV[5]);
 754                 return ERROR_FAIL;
 755         }
 756
 757         const char *driver_name = CMD_ARGV[0];
 758         struct flash_driver *driver = flash_driver_find_by_name(driver_name);
 759         if (NULL == driver) {
 760                 /* no matching flash driver found */
 761                 LOG_ERROR("flash driver '%s' not found", driver_name);
 762                 return ERROR_FAIL;
 763         }
 764
 765         /* check the flash bank name is unique */
 766         if (get_flash_bank_by_name_noprobe(bank_name) != NULL) {
 767                 /* flash bank name already exists  */
 768                 LOG_ERROR("flash bank name '%s' already exists", bank_name);
 769                 return ERROR_FAIL;
 770         }
 771
 772         /* register flash specific commands */
 773         if (NULL != driver->commands) {
 774                 int retval = register_commands(CMD_CTX, NULL,
 775                                 driver->commands);
 776                 if (ERROR_OK != retval) {
 777                         LOG_ERROR("couldn't register '%s' commands",
 778                                 driver_name);
 779                         return ERROR_FAIL;
 780                 }
 781         }
 782
 783         struct flash_bank *c = malloc(sizeof(*c));
 784         c->name = strdup(bank_name);
 785         c->target = target;
 786         c->driver = driver;
 787         c->driver_priv = NULL;
 788         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], c->base);
 789         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], c->size);
 790         COMMAND_PARSE_NUMBER(int, CMD_ARGV[3], c->chip_width);
 791         COMMAND_PARSE_NUMBER(int, CMD_ARGV[4], c->bus_width);
 792         c->default_padded_value = 0xff;
 793         c->num_sectors = 0;
 794         c->sectors = NULL;
 795         c->next = NULL;
 796
 797         int retval;
 798         retval = CALL_COMMAND_HANDLER(driver->flash_bank_command, c);
 799         if (ERROR_OK != retval) {
 800                 LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8" PRIx32 "Usage %s",
 801                         driver_name, c->base, driver->usage);
 802                 free(c);
 803                 return retval;
 804         }
 805
 806         if (driver->usage == NULL)
 807                 LOG_DEBUG("'%s' driver usage field missing", driver_name);
 808
 809         flash_bank_add(c);
 810
 811         return ERROR_OK;
 812 }
 813
 814 COMMAND_HANDLER(handle_flash_banks_command)
 815 {
 816         if (CMD_ARGC != 0)
 817                 return ERROR_COMMAND_SYNTAX_ERROR;
 818
 819         unsigned n = 0;
 820         for (struct flash_bank *p = flash_bank_list(); p; p = p->next, n++) {
 821                 LOG_USER("#%" PRIu32 " : %s (%s) at 0x%8.8" PRIx32 ", size 0x%8.8" PRIx32 ", "
 822                         "buswidth %u, chipwidth %u", p->bank_number,
 823                         p->name, p->driver->name, p->base, p->size,
 824                         p->bus_width, p->chip_width);
 825         }
 826         return ERROR_OK;
 827 }
 828
 829 static int jim_flash_list(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
 830 {
 831         if (argc != 1) {
 832                 Jim_WrongNumArgs(interp, 1, argv,
 833                         "no arguments to 'flash list' command");
 834                 return JIM_ERR;
 835         }
 836
 837         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
 838
 839         for (struct flash_bank *p = flash_bank_list(); p; p = p->next) {
 840                 Jim_Obj *elem = Jim_NewListObj(interp, NULL, 0);
 841
 842                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
 843                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
 844                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
 845                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
 846                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
 847                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
 848                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
 849                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
 850                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
 851                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
 852
 853                 Jim_ListAppendElement(interp, list, elem);
 854         }
 855
 856         Jim_SetResult(interp, list);
 857
 858         return JIM_OK;
 859 }
 860
 861 COMMAND_HANDLER(handle_flash_init_command)
 862 {
 863         if (CMD_ARGC != 0)
 864                 return ERROR_COMMAND_SYNTAX_ERROR;
 865
 866         static bool flash_initialized;
 867         if (flash_initialized) {
 868                 LOG_INFO("'flash init' has already been called");
 869                 return ERROR_OK;
 870         }
 871         flash_initialized = true;
 872
 873         LOG_DEBUG("Initializing flash devices...");
 874         return flash_init_drivers(CMD_CTX);
 875 }
 876
 877 static const struct command_registration flash_config_command_handlers[] = {
 878         {
 879                 .name = "bank",
 880                 .handler = handle_flash_bank_command,
 881                 .mode = COMMAND_CONFIG,
 882                 .usage = "bank_id driver_name base_address size_bytes "
 883                         "chip_width_bytes bus_width_bytes target "
 884                         "[driver_options ...]",
 885                 .help = "Define a new bank with the given name, "
 886                         "using the specified NOR flash driver.",
 887         },
 888         {
 889                 .name = "init",
 890                 .mode = COMMAND_CONFIG,
 891                 .handler = handle_flash_init_command,
 892                 .help = "Initialize flash devices.",
 893         },
 894         {
 895                 .name = "banks",
 896                 .mode = COMMAND_ANY,
 897                 .handler = handle_flash_banks_command,
 898                 .help = "Display table with information about flash banks.",
 899         },
 900         {
 901                 .name = "list",
 902                 .mode = COMMAND_ANY,
 903                 .jim_handler = jim_flash_list,
 904                 .help = "Returns a list of details about the flash banks.",
 905         },
 906         COMMAND_REGISTRATION_DONE
 907 };
 908 static const struct command_registration flash_command_handlers[] = {
 909         {
 910                 .name = "flash",
 911                 .mode = COMMAND_ANY,
 912                 .help = "NOR flash command group",
 913                 .chain = flash_config_command_handlers,
 914         },
 915         COMMAND_REGISTRATION_DONE
 916 };
 917
 918 int flash_register_commands(struct command_context *cmd_ctx)
 919 {
 920         return register_commands(cmd_ctx, NULL, flash_command_handlers);
 921 }