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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_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  47 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  48 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  49 int handle_flash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  50 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  51 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr);
  55
  56 /* flash drivers
  57  */
  58 extern flash_driver_t lpc2000_flash;
  59 extern flash_driver_t cfi_flash;
  60 extern flash_driver_t at91sam7_flash;
  61 extern flash_driver_t str7x_flash;
  62 extern flash_driver_t str9x_flash;
  63 extern flash_driver_t stellaris_flash;
  64 extern flash_driver_t str9xpec_flash;
  65 extern flash_driver_t stm32x_flash;
  66 extern flash_driver_t tms470_flash;
  67 extern flash_driver_t ecosflash_flash;
  68
  69 flash_driver_t *flash_drivers[] =
  70 {
  71         &lpc2000_flash,
  72         &cfi_flash,
  73         &at91sam7_flash,
  74         &str7x_flash,
  75         &str9x_flash,
  76         &stellaris_flash,
  77         &str9xpec_flash,
  78         &stm32x_flash,
  79         &tms470_flash,
  80         &ecosflash_flash,
  81         NULL,
  82 };
  83
  84 flash_bank_t *flash_banks;
  85 static  command_t *flash_cmd;
  86 static int auto_erase = 0;
  87
  88 /* wafer thin wrapper for invoking the flash driver */
  89 static int flash_driver_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
  90 {
  91         int retval;
  92
  93         retval=bank->driver->write(bank, buffer, offset, count);
  94         if (retval!=ERROR_OK)
  95         {
  96                 ERROR("error writing to flash at address 0x%08x at offset 0x%8.8x", bank->base, offset);
  97         }
  98
  99         return retval;
 100 }
 101
 102 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
 103 {
 104         int retval;
 105
 106         retval=bank->driver->erase(bank, first, last);
 107         if (retval!=ERROR_OK)
 108         {
 109                 ERROR("failed erasing sectors %d to %d", first, last);
 110         }
 111
 112         return retval;
 113 }
 114
 115 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
 116 {
 117         int retval;
 118
 119         retval=bank->driver->protect(bank, set, first, last);
 120         if (retval!=ERROR_OK)
 121         {
 122                 ERROR("failed setting protection for areas %d to %d", first, last);
 123         }
 124
 125         return retval;
 126 }
 127
 128
 129 int flash_register_commands(struct command_context_s *cmd_ctx)
 130 {
 131         flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
 132
 133         register_command(cmd_ctx, flash_cmd, "bank", handle_flash_bank_command, COMMAND_CONFIG, "flash_bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]");
 134         register_command(cmd_ctx, flash_cmd, "auto_erase", handle_flash_auto_erase_command, COMMAND_ANY,
 135                                                  "auto erase flash sectors <on|off>");
 136         return ERROR_OK;
 137 }
 138
 139 int flash_init_drivers(struct command_context_s *cmd_ctx)
 140 {
 141         if (flash_banks)
 142         {
 143                 register_command(cmd_ctx, flash_cmd, "banks", handle_flash_banks_command, COMMAND_EXEC,
 144                                                  "list configured flash banks ");
 145                 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
 146                                                  "print info about flash bank <num>");
 147                 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
 148                                                  "identify flash bank <num>");
 149                 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
 150                                                  "check erase state of sectors in flash bank <num>");
 151                 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
 152                                                  "check protection state of sectors in flash bank <num>");
 153                 register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
 154                                                  "erase sectors at <bank> <first> <last>");
 155                 register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
 156                                                  "erase address range <address> <length>");
 157                 register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
 158                                                  "write binary data to <bank> <file> <offset>");
 159                 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
 160                                                  "write_image <file> [offset] [type]");
 161                 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
 162                                                  "set protection of sectors at <bank> <first> <last> <on|off>");
 163         }
 164
 165         return ERROR_OK;
 166 }
 167
 168 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
 169 {
 170         flash_bank_t *p;
 171         int i = 0;
 172
 173         for (p = flash_banks; p; p = p->next)
 174         {
 175                 if (i++ == num)
 176                 {
 177                         return p;
 178                 }
 179         }
 180         ERROR("flash bank %d does not exist", num);
 181         return NULL;
 182 }
 183
 184 flash_bank_t *get_flash_bank_by_num(int num)
 185 {
 186         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
 187         int retval;
 188
 189         if (p == NULL)
 190                 return NULL;
 191
 192         retval = p->driver->auto_probe(p);
 193
 194         if (retval != ERROR_OK)
 195         {
 196                 ERROR("auto_probe failed %d\n", retval);
 197                 return NULL;
 198         }
 199         return p;
 200 }
 201
 202 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 203 {
 204         int i;
 205         int found = 0;
 206         target_t *target;
 207
 208         if (argc < 6)
 209         {
 210                 return ERROR_COMMAND_SYNTAX_ERROR;
 211         }
 212
 213         if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
 214         {
 215                 ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
 216                 return ERROR_OK;
 217         }
 218
 219         for (i = 0; flash_drivers[i]; i++)
 220         {
 221                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
 222                 {
 223                         flash_bank_t *p, *c;
 224
 225                         /* register flash specific commands */
 226                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 227                         {
 228                                 ERROR("couldn't register '%s' commands", args[0]);
 229                                 exit(-1);
 230                         }
 231
 232                         c = malloc(sizeof(flash_bank_t));
 233                         c->target = target;
 234                         c->driver = flash_drivers[i];
 235                         c->driver_priv = NULL;
 236                         c->base = strtoul(args[1], NULL, 0);
 237                         c->size = strtoul(args[2], NULL, 0);
 238                         c->chip_width = strtoul(args[3], NULL, 0);
 239                         c->bus_width = strtoul(args[4], NULL, 0);
 240                         c->num_sectors = 0;
 241                         c->sectors = NULL;
 242                         c->next = NULL;
 243
 244                         if (flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
 245                         {
 246                                 ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
 247                                 free(c);
 248                                 return ERROR_OK;
 249                         }
 250
 251                         /* put flash bank in linked list */
 252                         if (flash_banks)
 253                         {
 254                                 /* find last flash bank */
 255                                 for (p = flash_banks; p && p->next; p = p->next);
 256                                 if (p)
 257                                         p->next = c;
 258                         }
 259                         else
 260                         {
 261                                 flash_banks = c;
 262                         }
 263
 264                         found = 1;
 265                 }
 266         }
 267
 268         /* no matching flash driver found */
 269         if (!found)
 270         {
 271                 ERROR("flash driver '%s' not found", args[0]);
 272                 exit(-1);
 273         }
 274
 275         return ERROR_OK;
 276 }
 277
 278 int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 279 {
 280         flash_bank_t *p;
 281         int i = 0;
 282
 283         if (!flash_banks)
 284         {
 285                 command_print(cmd_ctx, "no flash banks configured");
 286                 return ERROR_OK;
 287         }
 288
 289         for (p = flash_banks; p; p = p->next)
 290         {
 291                 command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 292                                           i++, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 293         }
 294
 295         return ERROR_OK;
 296 }
 297
 298 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 299 {
 300         flash_bank_t *p;
 301         int i = 0;
 302         int j = 0;
 303
 304         if (argc != 1)
 305         {
 306                 return ERROR_COMMAND_SYNTAX_ERROR;
 307         }
 308
 309         for (p = flash_banks; p; p = p->next, i++)
 310         {
 311                 if (i == strtoul(args[0], NULL, 0))
 312                 {
 313                         char buf[1024];
 314
 315                         /* attempt auto probe */
 316                         p->driver->auto_probe(p);
 317
 318                         command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 319                                                 i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 320                         for (j = 0; j < p->num_sectors; j++)
 321                         {
 322                                 char *erase_state, *protect_state;
 323
 324                                 if (p->sectors[j].is_erased == 0)
 325                                         erase_state = "not erased";
 326                                 else if (p->sectors[j].is_erased == 1)
 327                                         erase_state = "erased";
 328                                 else
 329                                         erase_state = "erase state unknown";
 330
 331                                 if (p->sectors[j].is_protected == 0)
 332                                         protect_state = "not protected";
 333                                 else if (p->sectors[j].is_protected == 1)
 334                                         protect_state = "protected";
 335                                 else
 336                                         protect_state = "protection state unknown";
 337
 338                                 command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%x %ikB) %s, %s",
 339                                                         j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 340                                                         erase_state, protect_state);
 341                         }
 342
 343                         p->driver->info(p, buf, 1024);
 344                         command_print(cmd_ctx, "%s", buf);
 345                 }
 346         }
 347
 348         return ERROR_OK;
 349 }
 350
 351 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 352 {
 353         flash_bank_t *p;
 354         int retval;
 355
 356         if (argc != 1)
 357         {
 358                 return ERROR_COMMAND_SYNTAX_ERROR;
 359         }
 360
 361         p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
 362         if (p)
 363         {
 364                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 365                 {
 366                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
 367                 }
 368                 else if (retval == ERROR_FLASH_BANK_INVALID)
 369                 {
 370                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
 371                                                   args[0], p->base);
 372                 }
 373                 else
 374                 {
 375                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
 376                                                   args[0], p->base);
 377                 }
 378         }
 379         else
 380         {
 381                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 382         }
 383
 384         return ERROR_OK;
 385 }
 386
 387 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 388 {
 389         flash_bank_t *p;
 390         int retval;
 391
 392         if (argc != 1)
 393         {
 394                 return ERROR_COMMAND_SYNTAX_ERROR;
 395         }
 396
 397         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 398         if (p)
 399         {
 400                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 401                 {
 402                         command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
 403                 }
 404                 else
 405                 {
 406                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
 407                                 args[0], p->base);
 408                 }
 409         }
 410
 411         return ERROR_OK;
 412 }
 413
 414 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 415 {
 416         flash_bank_t *p;
 417         int retval;
 418         int address;
 419         int length;
 420         duration_t duration;
 421         char *duration_text;
 422
 423         target_t *target = get_current_target(cmd_ctx);
 424
 425         if (argc != 2)
 426         {
 427                 return ERROR_COMMAND_SYNTAX_ERROR;
 428         }
 429
 430         address = strtoul(args[0], NULL, 0);
 431         length = strtoul(args[1], NULL, 0);
 432         if (length <= 0)
 433         {
 434                 command_print(cmd_ctx, "Length must be >0");
 435                 return ERROR_COMMAND_SYNTAX_ERROR;
 436         }
 437
 438         p = get_flash_bank_by_addr(target, address);
 439         if (p == NULL)
 440         {
 441                 return ERROR_COMMAND_SYNTAX_ERROR;
 442         }
 443
 444         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 445         flash_set_dirty();
 446
 447         duration_start_measure(&duration);
 448
 449         if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
 450         {
 451                 duration_stop_measure(&duration, &duration_text);
 452                 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
 453                 free(duration_text);
 454         }
 455
 456         return retval;
 457 }
 458
 459 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 460 {
 461         flash_bank_t *p;
 462         int retval;
 463
 464         if (argc != 1)
 465         {
 466                 return ERROR_COMMAND_SYNTAX_ERROR;
 467         }
 468
 469         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 470         if (p)
 471         {
 472                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 473                 {
 474                         command_print(cmd_ctx, "successfully checked protect state");
 475                 }
 476                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
 477                 {
 478                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
 479                 }
 480                 else
 481                 {
 482                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
 483                 }
 484         }
 485         else
 486         {
 487                 return ERROR_COMMAND_SYNTAX_ERROR;
 488         }
 489
 490         return ERROR_OK;
 491 }
 492
 493 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 494 {
 495         if (argc > 2)
 496         {
 497                 int first = strtoul(args[1], NULL, 0);
 498                 int last = strtoul(args[2], NULL, 0);
 499                 int retval;
 500                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 501                 duration_t duration;
 502                 char *duration_text;
 503
 504                 duration_start_measure(&duration);
 505
 506                 if (!p)
 507                 {
 508                         return ERROR_COMMAND_SYNTAX_ERROR;
 509                 }
 510
 511                 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
 512                 {
 513                         duration_stop_measure(&duration, &duration_text);
 514
 515                         command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
 516                         free(duration_text);
 517                 }
 518         }
 519         else
 520         {
 521                 return ERROR_COMMAND_SYNTAX_ERROR;
 522         }
 523
 524         return ERROR_OK;
 525 }
 526
 527 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 528 {
 529         if (argc > 3)
 530         {
 531                 int first = strtoul(args[1], NULL, 0);
 532                 int last = strtoul(args[2], NULL, 0);
 533                 int set;
 534                 int retval;
 535                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 536                 if (!p)
 537                 {
 538                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 539                         return ERROR_OK;
 540                 }
 541
 542                 if (strcmp(args[3], "on") == 0)
 543                         set = 1;
 544                 else if (strcmp(args[3], "off") == 0)
 545                         set = 0;
 546                 else
 547                 {
 548                         return ERROR_COMMAND_SYNTAX_ERROR;
 549                 }
 550
 551                 retval = flash_driver_protect(p, set, first, last);
 552                 if (retval == ERROR_OK)
 553                 {
 554                         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));
 555                 }
 556         }
 557         else
 558         {
 559                 return ERROR_COMMAND_SYNTAX_ERROR;
 560
 561         }
 562
 563         return ERROR_OK;
 564 }
 565
 566 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 567 {
 568         target_t *target = get_current_target(cmd_ctx);
 569
 570         image_t image;
 571         u32 written;
 572
 573         duration_t duration;
 574         char *duration_text;
 575
 576         int retval;
 577
 578         if (argc < 1)
 579         {
 580                 return ERROR_COMMAND_SYNTAX_ERROR;
 581
 582         }
 583
 584         if (!target)
 585         {
 586                 ERROR("no target selected");
 587                 return ERROR_OK;
 588         }
 589
 590         duration_start_measure(&duration);
 591
 592         if (argc >= 2)
 593         {
 594                 image.base_address_set = 1;
 595                 image.base_address = strtoul(args[1], NULL, 0);
 596         }
 597         else
 598         {
 599                 image.base_address_set = 0;
 600                 image.base_address = 0x0;
 601         }
 602
 603         image.start_address_set = 0;
 604
 605         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
 606         if (retval != ERROR_OK)
 607         {
 608                 command_print(cmd_ctx, "image_open error: %s", image.error_str);
 609                 return retval;
 610         }
 611
 612         retval = flash_write(target, &image, &written, auto_erase);
 613
 614         if (retval != ERROR_OK)
 615         {
 616                 image_close(&image);
 617                 return retval;
 618         }
 619
 620         duration_stop_measure(&duration, &duration_text);
 621         if (retval == ERROR_OK)
 622         {
 623         command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
 624                 written, args[0], duration_text,
 625                 (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 626         }
 627         free(duration_text);
 628
 629         image_close(&image);
 630
 631         return retval;
 632 }
 633
 634 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 635 {
 636         u32 offset;
 637         u8 *buffer;
 638         u32 buf_cnt;
 639
 640         fileio_t fileio;
 641
 642         duration_t duration;
 643         char *duration_text;
 644
 645         int retval;
 646         flash_bank_t *p;
 647
 648         if (argc != 3)
 649         {
 650                 return ERROR_COMMAND_SYNTAX_ERROR;
 651         }
 652
 653         duration_start_measure(&duration);
 654
 655         offset = strtoul(args[2], NULL, 0);
 656         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 657         if (!p)
 658         {
 659                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 660                 return ERROR_OK;
 661         }
 662
 663         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 664         {
 665                 command_print(cmd_ctx, "flash write_binary error: %s", fileio.error_str);
 666                 return ERROR_OK;
 667         }
 668
 669         buffer = malloc(fileio.size);
 670         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 671         {
 672                 command_print(cmd_ctx, "flash write_binary error: %s", fileio.error_str);
 673                 return ERROR_OK;
 674         }
 675
 676         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 677
 678         free(buffer);
 679
 680         duration_stop_measure(&duration, &duration_text);
 681         if (retval!=ERROR_OK)
 682         {
 683         command_print(cmd_ctx, "wrote  %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
 684                 fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
 685                 (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 686         }
 687         free(duration_text);
 688
 689         fileio_close(&fileio);
 690
 691         return retval;
 692 }
 693
 694 void flash_set_dirty(void)
 695 {
 696         flash_bank_t *c;
 697         int i;
 698
 699         /* set all flash to require erasing */
 700         for (c = flash_banks; c; c = c->next)
 701         {
 702                 for (i = 0; i < c->num_sectors; i++)
 703                 {
 704                         c->sectors[i].is_erased = 0;
 705                 }
 706         }
 707 }
 708
 709 /* lookup flash bank by address */
 710 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
 711 {
 712         flash_bank_t *c;
 713
 714         /* cycle through bank list */
 715         for (c = flash_banks; c; c = c->next)
 716         {
 717                 int retval;
 718                 retval = c->driver->auto_probe(c);
 719
 720                 if (retval != ERROR_OK)
 721                 {
 722                         ERROR("auto_probe failed %d\n", retval);
 723                         return NULL;
 724                 }
 725                 /* check whether address belongs to this flash bank */
 726                 if ((addr >= c->base) && (addr < c->base + c->size) && target == c->target)
 727                         return c;
 728         }
 729         ERROR("No flash at address 0x%08x\n", addr);
 730         return NULL;
 731 }
 732
 733 /* erase given flash region, selects proper bank according to target and address */
 734 int flash_erase_address_range(target_t *target, u32 addr, u32 length)
 735 {
 736         flash_bank_t *c;
 737         int first = -1;
 738         int last = -1;
 739         int i;
 740
 741         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
 742                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
 743
 744         if (c->size == 0 || c->num_sectors == 0)
 745                 return ERROR_FLASH_BANK_INVALID;
 746
 747         if (length == 0)
 748         {
 749                 /* special case, erase whole bank when length is zero */
 750                 if (addr != c->base)
 751                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 752
 753                 return flash_driver_erase(c, 0, c->num_sectors - 1);
 754         }
 755
 756         /* check whether it fits */
 757         if (addr + length > c->base + c->size)
 758                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 759
 760         addr -= c->base;
 761
 762         for (i = 0; i < c->num_sectors; i++)
 763         {
 764                 /* check whether sector overlaps with the given range and is not yet erased */
 765                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
 766                         /* if first is not set yet then this is the first sector */
 767                         if (first == -1)
 768                                 first = i;
 769                         last = i; /* and it is the last one so far in any case */
 770                 }
 771         }
 772
 773         if( first == -1 || last == -1 )
 774                 return ERROR_OK;
 775
 776         return flash_driver_erase(c, first, last);
 777 }
 778
 779 /* write (optional verify) an image to flash memory of the given target */
 780 int flash_write(target_t *target, image_t *image, u32 *written, int erase)
 781 {
 782         int retval;
 783
 784         int section;
 785         u32 section_offset;
 786         flash_bank_t *c;
 787
 788         section = 0;
 789         section_offset = 0;
 790
 791         if (written)
 792                 *written = 0;
 793
 794         if (erase)
 795         {
 796                 /* assume all sectors need erasing - stops any problems
 797                  * when flash_write is called multiple times */
 798
 799                 flash_set_dirty();
 800         }
 801
 802         /* loop until we reach end of the image */
 803         while (section < image->num_sections)
 804         {
 805                 u32 buffer_size;
 806                 u8 *buffer;
 807                 int section_first;
 808                 int section_last;
 809                 u32 run_address = image->sections[section].base_address + section_offset;
 810                 u32 run_size = image->sections[section].size - section_offset;
 811
 812                 if (image->sections[section].size ==  0)
 813                 {
 814                         WARNING("empty section %d", section);
 815                         section++;
 816                         section_offset = 0;
 817                         continue;
 818                 }
 819
 820                 /* find the corresponding flash bank */
 821                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
 822                 {
 823                         section++; /* and skip it */
 824                         section_offset = 0;
 825                         continue;
 826                 }
 827
 828                 /* collect consecutive sections which fall into the same bank */
 829                 section_first = section;
 830                 section_last = section;
 831                 while ((run_address + run_size < c->base + c->size)
 832                                 && (section_last + 1 < image->num_sections))
 833                 {
 834                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
 835                         {
 836                                 DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
 837                                 break;
 838                         }
 839                         if (image->sections[section_last + 1].base_address != (run_address + run_size))
 840                                 break;
 841                         run_size += image->sections[++section_last].size;
 842                 }
 843
 844                 /* fit the run into bank constraints */
 845                 if (run_address + run_size > c->base + c->size)
 846                         run_size = c->base + c->size - run_address;
 847
 848                 /* allocate buffer */
 849                 buffer = malloc(run_size);
 850                 buffer_size = 0;
 851
 852                 /* read sections to the buffer */
 853                 while (buffer_size < run_size)
 854                 {
 855                         u32 size_read;
 856
 857                         if (buffer_size - run_size <= image->sections[section].size - section_offset)
 858                                 size_read = buffer_size - run_size;
 859                         else
 860                                 size_read = image->sections[section].size - section_offset;
 861
 862                         if ((retval = image_read_section(image, section, section_offset,
 863                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
 864                         {
 865                                 free(buffer);
 866
 867                                 return retval;
 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_address_range( target, run_address, run_size );
 886                 }
 887
 888                 if (retval == ERROR_OK)
 889                 {
 890                         /* write flash sectors */
 891                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
 892                 }
 893
 894                 free(buffer);
 895
 896                 if (retval != ERROR_OK)
 897                 {
 898                                 return retval; /* abort operation */
 899                         }
 900
 901                 if (written != NULL)
 902                         *written += run_size; /* add run size to total written counter */
 903         }
 904
 905         return ERROR_OK;
 906 }
 907
 908 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 909 {
 910         if (argc != 1)
 911         {
 912                 return ERROR_COMMAND_SYNTAX_ERROR;
 913
 914         }
 915
 916         if (strcmp(args[0], "on") == 0)
 917                 auto_erase = 1;
 918         else if (strcmp(args[0], "off") == 0)
 919                 auto_erase = 0;
 920         else
 921                 return ERROR_COMMAND_SYNTAX_ERROR;
 922
 923         return ERROR_OK;
 924 }