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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "flash.h"
  25 #include "command.h"
  26 #include "target.h"
  27 #include "time_support.h"
  28 #include "fileio.h"
  29 #include "image.h"
  30 #include "log.h"
  31
  32 #include <string.h>
  33 #include <unistd.h>
  34 #include <stdlib.h>
  35 #include <sys/types.h>
  36 #include <sys/stat.h>
  37 #include <errno.h>
  38 #include <inttypes.h>
  39
  40 /* command handlers */
  41 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  42 int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  43 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  44 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  45 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  46 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  47 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  48 int handle_flash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  49 int handle_flash_write_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  50 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  51 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53
  54 /* flash drivers
  55  */
  56 extern flash_driver_t lpc2000_flash;
  57 extern flash_driver_t cfi_flash;
  58 extern flash_driver_t at91sam7_flash;
  59 extern flash_driver_t str7x_flash;
  60 extern flash_driver_t str9x_flash;
  61 extern flash_driver_t stellaris_flash;
  62 extern flash_driver_t str9xpec_flash;
  63 extern flash_driver_t stm32x_flash;
  64
  65 flash_driver_t *flash_drivers[] =
  66 {
  67         &lpc2000_flash,
  68         &cfi_flash,
  69         &at91sam7_flash,
  70         &str7x_flash,
  71         &str9x_flash,
  72         &stellaris_flash,
  73         &str9xpec_flash,
  74         &stm32x_flash,
  75         NULL,
  76 };
  77
  78 flash_bank_t *flash_banks;
  79 static  command_t *flash_cmd;
  80 static int auto_erase = 0;
  81
  82 int flash_register_commands(struct command_context_s *cmd_ctx)
  83 {
  84         flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
  85
  86         register_command(cmd_ctx, flash_cmd, "bank", handle_flash_bank_command, COMMAND_CONFIG, NULL);
  87
  88         return ERROR_OK;
  89 }
  90
  91 int flash_init(struct command_context_s *cmd_ctx)
  92 {
  93         if (flash_banks)
  94         {
  95                 register_command(cmd_ctx, flash_cmd, "banks", handle_flash_banks_command, COMMAND_EXEC,
  96                                                  "list configured flash banks ");
  97                 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
  98                                                  "print info about flash bank <num>");
  99                 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
 100                                                  "identify flash bank <num>");
 101                 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
 102                                                  "check erase state of sectors in flash bank <num>");
 103                 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
 104                                                  "check protection state of sectors in flash bank <num>");
 105                 register_command(cmd_ctx, flash_cmd, "erase", handle_flash_erase_command, COMMAND_EXEC,
 106                                                  "erase sectors at <bank> <first> <last>");
 107                 register_command(cmd_ctx, flash_cmd, "write", handle_flash_write_binary_command, COMMAND_EXEC,
 108                                                  "DEPRECATED, use 'write_binary' or 'write_image' instead");
 109                 register_command(cmd_ctx, flash_cmd, "write_binary", handle_flash_write_binary_command, COMMAND_EXEC,
 110                                                  "write binary <bank> <file> <offset>");
 111                 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
 112                                                  "write image <file> [offset] [type]");
 113                 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
 114                                                  "set protection of sectors at <bank> <first> <last> <on|off>");
 115                 register_command(cmd_ctx, flash_cmd, "auto_erase", handle_flash_auto_erase_command, COMMAND_EXEC,
 116                                                  "auto erase flash sectors <on|off>");
 117         }
 118
 119         return ERROR_OK;
 120 }
 121
 122 flash_bank_t *get_flash_bank_by_num(int num)
 123 {
 124         flash_bank_t *p;
 125         int i = 0;
 126
 127         for (p = flash_banks; p; p = p->next)
 128         {
 129                 if (i++ == num)
 130                 {
 131                         return p;
 132                 }
 133         }
 134
 135         return NULL;
 136 }
 137
 138 /* flash_bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]
 139  */
 140 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 141 {
 142         int i;
 143         int found = 0;
 144         target_t *target;
 145
 146         if (argc < 6)
 147         {
 148                 WARNING("incomplete flash_bank configuration");
 149                 WARNING("flash_bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]");
 150                 return ERROR_OK;
 151         }
 152
 153         if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
 154         {
 155                 ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
 156                 return ERROR_OK;
 157         }
 158
 159         for (i = 0; flash_drivers[i]; i++)
 160         {
 161                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
 162                 {
 163                         flash_bank_t *p, *c;
 164
 165                         /* register flash specific commands */
 166                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 167                         {
 168                                 ERROR("couldn't register '%s' commands", args[0]);
 169                                 exit(-1);
 170                         }
 171
 172                         c = malloc(sizeof(flash_bank_t));
 173                         c->target = target;
 174                         c->driver = flash_drivers[i];
 175                         c->driver_priv = NULL;
 176                         c->base = strtoul(args[1], NULL, 0);
 177                         c->size = strtoul(args[2], NULL, 0);
 178                         c->chip_width = strtoul(args[3], NULL, 0);
 179                         c->bus_width = strtoul(args[4], NULL, 0);\r
 180                         c->num_sectors = 0;\r
 181                         c->sectors = NULL;
 182                         c->next = NULL;
 183
 184                         if (flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
 185                         {
 186                                 ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
 187                                 free(c);
 188                                 return ERROR_OK;
 189                         }
 190
 191                         /* put flash bank in linked list */
 192                         if (flash_banks)
 193                         {
 194                                 /* find last flash bank */
 195                                 for (p = flash_banks; p && p->next; p = p->next);
 196                                 if (p)
 197                                         p->next = c;
 198                         }
 199                         else
 200                         {
 201                                 flash_banks = c;
 202                         }
 203
 204                         found = 1;
 205                 }
 206         }
 207
 208         /* no matching flash driver found */
 209         if (!found)
 210         {
 211                 ERROR("flash driver '%s' not found", args[0]);
 212                 exit(-1);
 213         }
 214
 215         return ERROR_OK;
 216 }
 217
 218 int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 219 {
 220         flash_bank_t *p;
 221         int i = 0;
 222
 223         if (!flash_banks)
 224         {
 225                 command_print(cmd_ctx, "no flash banks configured");
 226                 return ERROR_OK;
 227         }
 228
 229         for (p = flash_banks; p; p = p->next)
 230         {
 231                 command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 232                                           i++, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 233         }
 234
 235         return ERROR_OK;
 236 }
 237
 238 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 239 {
 240         flash_bank_t *p;
 241         int i = 0;
 242         int j = 0;
 243
 244         if (argc != 1)
 245         {
 246                 command_print(cmd_ctx, "usage: flash info <num>");
 247                 return ERROR_OK;
 248         }
 249
 250         for (p = flash_banks; p; p = p->next, i++)
 251         {
 252                 if (i == strtoul(args[0], NULL, 0))
 253                 {
 254                         char buf[1024];
 255
 256                         command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 257                                                 i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 258                         for (j = 0; j < p->num_sectors; j++)
 259                         {
 260                                 char *erase_state, *protect_state;
 261
 262                                 if (p->sectors[j].is_erased == 0)
 263                                         erase_state = "not erased";
 264                                 else if (p->sectors[j].is_erased == 1)
 265                                         erase_state = "erased";
 266                                 else
 267                                         erase_state = "erase state unknown";
 268
 269                                 if (p->sectors[j].is_protected == 0)
 270                                         protect_state = "not protected";
 271                                 else if (p->sectors[j].is_protected == 1)
 272                                         protect_state = "protected";
 273                                 else
 274                                         protect_state = "protection state unknown";
 275
 276                                 command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%x %ikB) %s, %s",
 277                                                         j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 278                                                         erase_state, protect_state);
 279                         }
 280
 281                         p->driver->info(p, buf, 1024);
 282                         command_print(cmd_ctx, "%s", buf);
 283                 }
 284         }
 285
 286         return ERROR_OK;
 287 }
 288
 289 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 290 {
 291         flash_bank_t *p;
 292         int retval;
 293
 294         if (argc != 1)
 295         {
 296                 command_print(cmd_ctx, "usage: flash probe <num>");
 297                 return ERROR_OK;
 298         }
 299
 300         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 301         if (p)
 302         {
 303                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 304                 {
 305                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
 306                 }
 307                 else if (retval == ERROR_FLASH_BANK_INVALID)
 308                 {
 309                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
 310                                                   args[0], p->base);
 311                 }
 312                 else
 313                 {
 314                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
 315                                                   args[0], p->base);
 316                 }
 317         }
 318         else
 319         {
 320                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 321         }
 322
 323         return ERROR_OK;
 324 }
 325
 326 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 327 {
 328         flash_bank_t *p;
 329         int retval;
 330
 331         if (argc != 1)
 332         {
 333                 command_print(cmd_ctx, "usage: flash erase_check <num>");
 334                 return ERROR_OK;
 335         }
 336
 337         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 338         if (p)
 339         {
 340                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 341                 {
 342                         command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
 343                 }
 344                 else
 345                 {
 346                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
 347                                 args[0], p->base);
 348                 }
 349         }
 350         else
 351         {
 352                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 353         }
 354
 355         return ERROR_OK;
 356 }
 357
 358 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 359 {
 360         flash_bank_t *p;
 361         int retval;
 362
 363         if (argc != 1)
 364         {
 365                 command_print(cmd_ctx, "usage: flash protect_check <num>");
 366                 return ERROR_OK;
 367         }
 368
 369         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 370         if (p)
 371         {
 372                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 373                 {
 374                         command_print(cmd_ctx, "successfully checked protect state");
 375                 }
 376                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
 377                 {
 378                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
 379                 }
 380                 else
 381                 {
 382                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
 383                 }
 384         }
 385         else
 386         {
 387                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 388         }
 389
 390         return ERROR_OK;
 391 }
 392
 393 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 394 {
 395         if (argc > 2)
 396         {
 397                 int first = strtoul(args[1], NULL, 0);
 398                 int last = strtoul(args[2], NULL, 0);
 399                 int retval;
 400                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 401                 duration_t duration;
 402                 char *duration_text;
 403
 404                 duration_start_measure(&duration);
 405
 406                 if (!p)
 407                 {
 408                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 409                         return ERROR_OK;
 410                 }
 411
 412                 if ((retval = p->driver->erase(p, first, last)) != ERROR_OK)
 413                 {
 414                         switch (retval)
 415                         {
 416                                 case ERROR_TARGET_NOT_HALTED:
 417                                         command_print(cmd_ctx, "can't work with this flash while target is running");
 418                                         break;
 419                                 case ERROR_INVALID_ARGUMENTS:
 420                                         command_print(cmd_ctx, "usage: flash_erase <bank> <first> <last>");
 421                                         break;
 422                                 case ERROR_FLASH_BANK_INVALID:
 423                                         command_print(cmd_ctx, "no '%s' flash found at 0x%8.8x", p->driver->name, p->base);
 424                                         break;
 425                                 case ERROR_FLASH_OPERATION_FAILED:
 426                                         command_print(cmd_ctx, "flash erase error");
 427                                         break;
 428                                 case ERROR_FLASH_SECTOR_INVALID:
 429                                         command_print(cmd_ctx, "sector number(s) invalid");
 430                                         break;
 431                                 case ERROR_OK:
 432                                         command_print(cmd_ctx, "erased flash sectors %i to %i", first, last);
 433                                         break;
 434                                 default:
 435                                         command_print(cmd_ctx, "unknown error");
 436                         }
 437                 }
 438                 else
 439                 {
 440                         duration_stop_measure(&duration, &duration_text);
 441
 442                         command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
 443                         free(duration_text);
 444                 }
 445         }
 446         else
 447         {
 448                 command_print(cmd_ctx, "usage: flash erase <bank> <first> <last>");
 449         }
 450
 451         return ERROR_OK;
 452 }
 453
 454 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 455 {
 456         if (argc > 3)
 457         {
 458                 int first = strtoul(args[1], NULL, 0);
 459                 int last = strtoul(args[2], NULL, 0);
 460                 int set;
 461                 int retval;
 462                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 463                 if (!p)
 464                 {
 465                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 466                         return ERROR_OK;
 467                 }
 468
 469                 if (strcmp(args[3], "on") == 0)
 470                         set = 1;
 471                 else if (strcmp(args[3], "off") == 0)
 472                         set = 0;
 473                 else
 474                 {
 475                         command_print(cmd_ctx, "usage: flash protect <bank> <first> <last> <on|off>");
 476                         return ERROR_OK;
 477                 }
 478
 479                 if ((retval = p->driver->protect(p, set, first, last)) != ERROR_OK)
 480                 {
 481                         switch (retval)
 482                         {
 483                                 case ERROR_TARGET_NOT_HALTED:
 484                                         command_print(cmd_ctx, "can't work with this flash while target is running");
 485                                         break;
 486                                 case ERROR_INVALID_ARGUMENTS:
 487                                         command_print(cmd_ctx, "usage: flash protect <bank> <first> <last> <on|off>");
 488                                         break;
 489                                 case ERROR_FLASH_BANK_INVALID:
 490                                         command_print(cmd_ctx, "no '%s' flash found at 0x%8.8x", p->driver->name, p->base);
 491                                         break;
 492                                 case ERROR_FLASH_OPERATION_FAILED:
 493                                         command_print(cmd_ctx, "flash program error");
 494                                         break;
 495                                 case ERROR_FLASH_SECTOR_INVALID:
 496                                         command_print(cmd_ctx, "sector number(s) invalid");
 497                                         break;
 498                                 case ERROR_OK:
 499                                         command_print(cmd_ctx, "protection of flash sectors %i to %i turned %s", first, last, args[3]);
 500                                         break;
 501                                 default:
 502                                         command_print(cmd_ctx, "unknown error");
 503                         }
 504                 }
 505                 else
 506                 {
 507                         command_print(cmd_ctx, "%s protection for sectors %i through %i on flash bank %i", (set) ? "set" : "cleared", first, last, strtoul(args[0], 0, 0));
 508                 }
 509         }
 510         else
 511         {
 512                 command_print(cmd_ctx, "usage: flash protect <bank> <first> <last> <on|off>");
 513         }
 514
 515         return ERROR_OK;
 516 }
 517
 518 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 519 {
 520         target_t *target = get_current_target(cmd_ctx);
 521
 522         image_t image;
 523         u32 written;
 524         char *error_str;
 525         int *failed;
 526
 527         int i;
 528
 529         duration_t duration;
 530         char *duration_text;
 531
 532         int retval;
 533
 534         if (!strcmp(cmd, "write"))
 535         {
 536                 command_print(cmd_ctx, "'flash write' has been deprecated in favor of 'flash write_binary' and 'flash write_image'");
 537                 DEBUG("'flash write' has been deprecated in favor of 'flash write_binary' and 'flash write_image'");
 538         }
 539
 540         if (argc < 1)
 541         {
 542                 command_print(cmd_ctx, "usage: flash write <file> [offset] [type]");
 543                 return ERROR_OK;
 544         }
 545
 546         if (!target)
 547         {
 548                 ERROR("no target selected");
 549                 return ERROR_OK;
 550         }
 551
 552         duration_start_measure(&duration);
 553
 554         if (argc >= 2)
 555         {
 556                 image.base_address_set = 1;
 557                 image.base_address = strtoul(args[1], NULL, 0);
 558         }
 559         else
 560         {
 561                 image.base_address_set = 0;
 562                 image.base_address = 0x0;
 563         }
 564
 565         image.start_address_set = 0;
 566
 567         if (image_open(&image, args[0], (argc == 4) ? args[2] : NULL) != ERROR_OK)
 568         {
 569                 command_print(cmd_ctx, "flash write error: %s", image.error_str);
 570                 return ERROR_OK;
 571         }
 572
 573         failed = malloc(sizeof(int) * image.num_sections);
 574
 575         error_str=NULL;
 576         retval = flash_write(target, &image, &written, &error_str, failed, auto_erase);
 577
 578         if (retval != ERROR_OK)
 579         {
 580                 if (error_str)
 581                 {
 582                         command_print(cmd_ctx, "failed writing image %s: %s", args[0], error_str);
 583                         free(error_str);
 584                 }
 585                 image_close(&image);
 586                 free(failed);
 587                 return retval;
 588         }
 589
 590         for (i = 0; i < image.num_sections; i++)
 591         {
 592                 if (failed[i])
 593                 {
 594                         command_print(cmd_ctx, "didn't write section at 0x%8.8x, size 0x%8.8x",
 595                                         image.sections[i].base_address, image.sections[i].size);
 596                 }
 597         }
 598
 599         duration_stop_measure(&duration, &duration_text);
 600         command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
 601                 written, args[0], duration_text,
 602                 (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 603
 604         free(duration_text);
 605         free(failed);
 606
 607         image_close(&image);
 608
 609         return ERROR_OK;
 610 }
 611
 612 int handle_flash_write_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 613 {
 614         u32 offset;
 615         u8 *buffer;
 616         u32 buf_cnt;
 617
 618         fileio_t fileio;
 619
 620         duration_t duration;
 621         char *duration_text;
 622
 623         int retval;
 624         flash_bank_t *p;
 625
 626         if (argc < 3)
 627         {
 628                 command_print(cmd_ctx, "usage: flash write <bank> <file> <offset>");
 629                 return ERROR_OK;
 630         }
 631
 632         duration_start_measure(&duration);
 633
 634         offset = strtoul(args[2], NULL, 0);
 635         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 636         if (!p)
 637         {
 638                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 639                 return ERROR_OK;
 640         }
 641
 642         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 643         {
 644                 command_print(cmd_ctx, "flash write error: %s", fileio.error_str);
 645                 return ERROR_OK;
 646         }
 647
 648         buffer = malloc(fileio.size);
 649         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 650         {
 651                 command_print(cmd_ctx, "flash write error: %s", fileio.error_str);
 652                 return ERROR_OK;
 653         }
 654
 655         if ((retval = p->driver->write(p, buffer, offset, buf_cnt)) != ERROR_OK)
 656         {
 657                 command_print(cmd_ctx, "failed writing file %s to flash bank %i at offset 0x%8.8x",
 658                         args[1], strtoul(args[0], NULL, 0), strtoul(args[2], NULL, 0));
 659                 switch (retval)
 660                 {
 661                         case ERROR_TARGET_NOT_HALTED:
 662                                 command_print(cmd_ctx, "can't work with this flash while target is running");
 663                                 break;
 664                         case ERROR_INVALID_ARGUMENTS:
 665                                 command_print(cmd_ctx, "usage: flash write <bank> <file> <offset>");
 666                                 break;
 667                         case ERROR_FLASH_BANK_INVALID:
 668                                 command_print(cmd_ctx, "no '%s' flash found at 0x%8.8x", p->driver->name, p->base);
 669                                 break;
 670                         case ERROR_FLASH_OPERATION_FAILED:
 671                                 command_print(cmd_ctx, "flash program error");
 672                                 break;
 673                         case ERROR_FLASH_DST_BREAKS_ALIGNMENT:
 674                                 command_print(cmd_ctx, "offset breaks required alignment");
 675                                 break;
 676                         case ERROR_FLASH_DST_OUT_OF_BANK:
 677                                 command_print(cmd_ctx, "destination is out of flash bank (offset and/or file too large)");
 678                                 break;
 679                         case ERROR_FLASH_SECTOR_NOT_ERASED:
 680                                 command_print(cmd_ctx, "destination sector(s) not erased");
 681                                 break;
 682                         default:
 683                                 command_print(cmd_ctx, "unknown error");
 684                 }
 685         }
 686
 687         free(buffer);
 688
 689         duration_stop_measure(&duration, &duration_text);
 690         command_print(cmd_ctx, "wrote  %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
 691                 fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
 692                 (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 693         free(duration_text);
 694
 695         fileio_close(&fileio);
 696
 697         return ERROR_OK;
 698 }
 699
 700 /* lookup flash bank by address */
 701 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
 702 {
 703         flash_bank_t *c;
 704
 705         /* cycle through bank list */
 706         for (c = flash_banks; c; c = c->next)
 707         {
 708                 /* check whether address belongs to this flash bank */
 709                 if ((addr >= c->base) && (addr < c->base + c->size) && target == c->target)
 710                         return c;
 711         }
 712
 713         return NULL;
 714 }
 715
 716 /* erase given flash region, selects proper bank according to target and address */
 717 int flash_erase(target_t *target, u32 addr, u32 length)
 718 {
 719         flash_bank_t *c;
 720         int first = -1;
 721         int last = -1;
 722         int i;
 723
 724         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
 725                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
 726
 727         if (c->size == 0 || c->num_sectors == 0)
 728                 return ERROR_FLASH_BANK_INVALID;
 729
 730         if (length == 0)
 731         {
 732                 /* special case, erase whole bank when length is zero */
 733                 if (addr != c->base)
 734                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 735
 736                 return c->driver->erase(c, 0, c->num_sectors - 1);
 737         }
 738
 739         /* check whether it fits */
 740         if (addr + length > c->base + c->size)
 741                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 742
 743         addr -= c->base;
 744
 745         for (i = 0; i < c->num_sectors; i++)
 746         {
 747                 /* check whether sector overlaps with the given range and is not yet erased */
 748                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
 749                         /* if first is not set yet then this is the first sector */
 750                         if (first == -1)
 751                                 first = i;
 752                         last = i; /* and it is the last one so far in any case */
 753                 }
 754         }
 755
 756         if( first == -1 || last == -1 )
 757                 return ERROR_OK;
 758
 759         return c->driver->erase(c, first, last);
 760 }
 761
 762 /* write an image to flash memory of the given target */
 763 int flash_write(target_t *target, image_t *image, u32 *written, char **error_str, int *failed, int erase)
 764 {
 765         int retval;
 766         int i;
 767
 768         int section;
 769         u32 section_offset;
 770
 771         section = 0;
 772         section_offset = 0;
 773
 774         if (written)
 775                 *written = 0;
 776
 777         if (failed != NULL)
 778                 for (i = 0; i < image->num_sections; i++)
 779                         failed[i] = 0;
 780
 781         /* loop until we reach end of the image */
 782         while (section < image->num_sections)
 783         {
 784                 flash_bank_t *c;
 785                 u32 buffer_size;
 786                 u8 *buffer;
 787                 int section_first;
 788                 int section_last;
 789                 u32 run_address = image->sections[section].base_address+section_offset;
 790                 u32 run_size = image->sections[section].size-section_offset;
 791
 792                 if (image->sections[section].size ==  0)
 793                 {
 794                         WARNING("empty section %d", section);
 795                         section++;
 796                         section_offset = 0;
 797                         continue;
 798                 }
 799
 800                 /* find the corresponding flash bank */
 801                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
 802                 {
 803                         if (failed == NULL)
 804                         {
 805                                 if (error_str == NULL)
 806                                         return ERROR_FLASH_DST_OUT_OF_BANK; /* abort operation */
 807                                 *error_str = malloc(FLASH_MAX_ERROR_STR);
 808                                 snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
 809                                 return ERROR_FLASH_DST_OUT_OF_BANK; /* abort operation */
 810                         }
 811                         failed[section] = ERROR_FLASH_DST_OUT_OF_BANK; /* mark the section as failed */
 812                         section++; /* and skip it */
 813                         section_offset = 0;
 814                         continue;
 815                 }
 816
 817                 /* collect consecutive sections which fall into the same bank */
 818                 section_first = section;
 819                 section_last = section;
 820                 while ((run_address + run_size < c->base + c->size)
 821                                 && (section_last + 1 < image->num_sections))
 822                 {
 823                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
 824                         {
 825                                 WARNING("section %d out of order", section_last + 1);
 826                                 break;
 827                         }
 828                         if (image->sections[section_last + 1].base_address != (run_address + run_size))
 829                                 break;
 830                         run_size += image->sections[++section_last].size;
 831                 }
 832
 833                 /* fit the run into bank constraints */
 834                 if (run_address + run_size > c->base + c->size)
 835                         run_size = c->base + c->size - run_address;
 836
 837                 /* allocate buffer */
 838                 buffer = malloc(run_size);
 839                 buffer_size = 0;
 840
 841                 /* read sections to the buffer */
 842                 while (buffer_size < run_size)
 843                 {
 844                         u32 size_read;
 845
 846                         if (buffer_size - run_size <= image->sections[section].size - section_offset)
 847                                 size_read = buffer_size - run_size;
 848                         else
 849                                 size_read = image->sections[section].size - section_offset;
 850
 851                         if ((retval = image_read_section(image, section, section_offset,
 852                                         run_size, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
 853                         {
 854                                 free(buffer);
 855
 856                                 if (error_str == NULL)
 857                                         return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
 858
 859                                 *error_str = malloc(FLASH_MAX_ERROR_STR);
 860
 861                                 /* if image_read_section returned an error there's an error string we can pass on */
 862                                 if (retval != ERROR_OK)
 863                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image: %s", image->error_str);
 864                                 else
 865                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image");
 866
 867                                 return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
 868                         }
 869
 870                         buffer_size += size_read;
 871                         section_offset += size_read;
 872
 873                         if (section_offset >= image->sections[section].size)
 874                         {
 875                                 section++;
 876                                 section_offset = 0;
 877                         }
 878                 }
 879
 880                 retval = ERROR_OK;
 881
 882                 if (erase)
 883                 {
 884                         /* calculate and erase sectors */
 885                         retval = flash_erase( target, run_address, run_size );
 886                 }
 887
 888                 if (retval == ERROR_OK)
 889                 {
 890                         /* write flash sectors */
 891                         retval = c->driver->write(c, buffer, run_address - c->base, run_size);
 892                 }
 893
 894                 free(buffer);
 895
 896                 if (retval != ERROR_OK)
 897                 {
 898                         if (error_str == NULL)
 899                                 return retval; /* abort operation */
 900
 901                         *error_str = malloc(FLASH_MAX_ERROR_STR);
 902                         switch (retval)
 903                         {
 904                                 case ERROR_TARGET_NOT_HALTED:
 905                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "can't flash image while target is running");
 906                                         break;
 907                                 case ERROR_INVALID_ARGUMENTS:
 908                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash driver can't fulfill request");
 909                                         break;
 910                                 case ERROR_FLASH_OPERATION_FAILED:
 911                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash program error");
 912                                         break;
 913                                 case ERROR_FLASH_DST_BREAKS_ALIGNMENT:
 914                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "offset breaks required alignment");
 915                                         break;
 916                                 case ERROR_FLASH_DST_OUT_OF_BANK:
 917                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
 918                                         break;
 919                                 case ERROR_FLASH_SECTOR_NOT_ERASED:
 920                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "destination sector(s) not erased");
 921                                         break;
 922                                 default:
 923                                         snprintf(*error_str, FLASH_MAX_ERROR_STR, "unknown error: %i", retval);
 924                         }
 925
 926                         return retval; /* abort operation */
 927                 }
 928
 929                 if (written != NULL)
 930                         *written += run_size; /* add run size to total written counter */
 931         }
 932
 933         return ERROR_OK;
 934 }
 935
 936 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 937 {
 938         if (argc != 1)
 939         {
 940                 command_print(cmd_ctx, "usage: flash auto_erase <on|off>");
 941                 return ERROR_OK;
 942         }
 943
 944         if (strcmp(args[0], "on") == 0)
 945                 auto_erase = 1;
 946         else if (strcmp(args[0], "off") == 0)
 947                 auto_erase = 0;
 948
 949         return ERROR_OK;
 950 }
 951
 952