git.gag.com Git - fw/openocd/blob - src/flash/flash.c

   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 int flash_get_bank_count()
 185 {
 186         flash_bank_t *p;
 187         int i = 0;
 188         for (p = flash_banks; p; p = p->next)
 189         {
 190                 i++;
 191         }
 192         return i;
 193 }
 194
 195 flash_bank_t *get_flash_bank_by_num(int num)
 196 {
 197         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
 198         int retval;
 199
 200         if (p == NULL)
 201                 return NULL;
 202
 203         retval = p->driver->auto_probe(p);
 204
 205         if (retval != ERROR_OK)
 206         {
 207                 ERROR("auto_probe failed %d\n", retval);
 208                 return NULL;
 209         }
 210         return p;
 211 }
 212
 213 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 214 {
 215         int i;
 216         int found = 0;
 217         target_t *target;
 218
 219         if (argc < 6)
 220         {
 221                 return ERROR_COMMAND_SYNTAX_ERROR;
 222         }
 223
 224         if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
 225         {
 226                 ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
 227                 return ERROR_OK;
 228         }
 229
 230         for (i = 0; flash_drivers[i]; i++)
 231         {
 232                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
 233                 {
 234                         flash_bank_t *p, *c;
 235
 236                         /* register flash specific commands */
 237                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 238                         {
 239                                 ERROR("couldn't register '%s' commands", args[0]);
 240                                 exit(-1);
 241                         }
 242
 243                         c = malloc(sizeof(flash_bank_t));
 244                         c->target = target;
 245                         c->driver = flash_drivers[i];
 246                         c->driver_priv = NULL;
 247                         c->base = strtoul(args[1], NULL, 0);
 248                         c->size = strtoul(args[2], NULL, 0);
 249                         c->chip_width = strtoul(args[3], NULL, 0);
 250                         c->bus_width = strtoul(args[4], NULL, 0);
 251                         c->num_sectors = 0;
 252                         c->sectors = NULL;
 253                         c->next = NULL;
 254
 255                         if (flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
 256                         {
 257                                 ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
 258                                 free(c);
 259                                 return ERROR_OK;
 260                         }
 261
 262                         /* put flash bank in linked list */
 263                         if (flash_banks)
 264                         {
 265                                 /* find last flash bank */
 266                                 for (p = flash_banks; p && p->next; p = p->next);
 267                                 if (p)
 268                                         p->next = c;
 269                         }
 270                         else
 271                         {
 272                                 flash_banks = c;
 273                         }
 274
 275                         found = 1;
 276                 }
 277         }
 278
 279         /* no matching flash driver found */
 280         if (!found)
 281         {
 282                 ERROR("flash driver '%s' not found", args[0]);
 283                 exit(-1);
 284         }
 285
 286         return ERROR_OK;
 287 }
 288
 289 int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 290 {
 291         flash_bank_t *p;
 292         int i = 0;
 293
 294         if (!flash_banks)
 295         {
 296                 command_print(cmd_ctx, "no flash banks configured");
 297                 return ERROR_OK;
 298         }
 299
 300         for (p = flash_banks; p; p = p->next)
 301         {
 302                 command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 303                                           i++, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 304         }
 305
 306         return ERROR_OK;
 307 }
 308
 309 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 310 {
 311         flash_bank_t *p;
 312         int i = 0;
 313         int j = 0;
 314
 315         if (argc != 1)
 316         {
 317                 return ERROR_COMMAND_SYNTAX_ERROR;
 318         }
 319
 320         for (p = flash_banks; p; p = p->next, i++)
 321         {
 322                 if (i == strtoul(args[0], NULL, 0))
 323                 {
 324                         char buf[1024];
 325
 326                         /* attempt auto probe */
 327                         p->driver->auto_probe(p);
 328
 329                         command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 330                                                 i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 331                         for (j = 0; j < p->num_sectors; j++)
 332                         {
 333                                 char *erase_state, *protect_state;
 334
 335                                 if (p->sectors[j].is_erased == 0)
 336                                         erase_state = "not erased";
 337                                 else if (p->sectors[j].is_erased == 1)
 338                                         erase_state = "erased";
 339                                 else
 340                                         erase_state = "erase state unknown";
 341
 342                                 if (p->sectors[j].is_protected == 0)
 343                                         protect_state = "not protected";
 344                                 else if (p->sectors[j].is_protected == 1)
 345                                         protect_state = "protected";
 346                                 else
 347                                         protect_state = "protection state unknown";
 348
 349                                 command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%x %ikB) %s, %s",
 350                                                         j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 351                                                         erase_state, protect_state);
 352                         }
 353
 354                         p->driver->info(p, buf, 1024);
 355                         command_print(cmd_ctx, "%s", buf);
 356                 }
 357         }
 358
 359         return ERROR_OK;
 360 }
 361
 362 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 363 {
 364         flash_bank_t *p;
 365         int retval;
 366
 367         if (argc != 1)
 368         {
 369                 return ERROR_COMMAND_SYNTAX_ERROR;
 370         }
 371
 372         p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
 373         if (p)
 374         {
 375                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 376                 {
 377                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
 378                 }
 379                 else if (retval == ERROR_FLASH_BANK_INVALID)
 380                 {
 381                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
 382                                                   args[0], p->base);
 383                 }
 384                 else
 385                 {
 386                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
 387                                                   args[0], p->base);
 388                 }
 389         }
 390         else
 391         {
 392                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 393         }
 394
 395         return ERROR_OK;
 396 }
 397
 398 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 399 {
 400         flash_bank_t *p;
 401         int retval;
 402
 403         if (argc != 1)
 404         {
 405                 return ERROR_COMMAND_SYNTAX_ERROR;
 406         }
 407
 408         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 409         if (p)
 410         {
 411                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 412                 {
 413                         command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
 414                 }
 415                 else
 416                 {
 417                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
 418                                 args[0], p->base);
 419                 }
 420         }
 421
 422         return ERROR_OK;
 423 }
 424
 425 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 426 {
 427         flash_bank_t *p;
 428         int retval;
 429         int address;
 430         int length;
 431         duration_t duration;
 432         char *duration_text;
 433
 434         target_t *target = get_current_target(cmd_ctx);
 435
 436         if (argc != 2)
 437         {
 438                 return ERROR_COMMAND_SYNTAX_ERROR;
 439         }
 440
 441         address = strtoul(args[0], NULL, 0);
 442         length = strtoul(args[1], NULL, 0);
 443         if (length <= 0)
 444         {
 445                 command_print(cmd_ctx, "Length must be >0");
 446                 return ERROR_COMMAND_SYNTAX_ERROR;
 447         }
 448
 449         p = get_flash_bank_by_addr(target, address);
 450         if (p == NULL)
 451         {
 452                 return ERROR_COMMAND_SYNTAX_ERROR;
 453         }
 454
 455         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 456         flash_set_dirty();
 457
 458         duration_start_measure(&duration);
 459
 460         if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
 461         {
 462                 duration_stop_measure(&duration, &duration_text);
 463                 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
 464                 free(duration_text);
 465         }
 466
 467         return retval;
 468 }
 469
 470 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 471 {
 472         flash_bank_t *p;
 473         int retval;
 474
 475         if (argc != 1)
 476         {
 477                 return ERROR_COMMAND_SYNTAX_ERROR;
 478         }
 479
 480         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 481         if (p)
 482         {
 483                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 484                 {
 485                         command_print(cmd_ctx, "successfully checked protect state");
 486                 }
 487                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
 488                 {
 489                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
 490                 }
 491                 else
 492                 {
 493                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
 494                 }
 495         }
 496         else
 497         {
 498                 return ERROR_COMMAND_SYNTAX_ERROR;
 499         }
 500
 501         return ERROR_OK;
 502 }
 503
 504 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 505 {
 506         if (argc > 2)
 507         {
 508                 int first = strtoul(args[1], NULL, 0);
 509                 int last = strtoul(args[2], NULL, 0);
 510                 int retval;
 511                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 512                 duration_t duration;
 513                 char *duration_text;
 514
 515                 duration_start_measure(&duration);
 516
 517                 if (!p)
 518                 {
 519                         return ERROR_COMMAND_SYNTAX_ERROR;
 520                 }
 521
 522                 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
 523                 {
 524                         duration_stop_measure(&duration, &duration_text);
 525
 526                         command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
 527                         free(duration_text);
 528                 }
 529         }
 530         else
 531         {
 532                 return ERROR_COMMAND_SYNTAX_ERROR;
 533         }
 534
 535         return ERROR_OK;
 536 }
 537
 538 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 539 {
 540         if (argc > 3)
 541         {
 542                 int first = strtoul(args[1], NULL, 0);
 543                 int last = strtoul(args[2], NULL, 0);
 544                 int set;
 545                 int retval;
 546                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 547                 if (!p)
 548                 {
 549                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 550                         return ERROR_OK;
 551                 }
 552
 553                 if (strcmp(args[3], "on") == 0)
 554                         set = 1;
 555                 else if (strcmp(args[3], "off") == 0)
 556                         set = 0;
 557                 else
 558                 {
 559                         return ERROR_COMMAND_SYNTAX_ERROR;
 560                 }
 561
 562                 retval = flash_driver_protect(p, set, first, last);
 563                 if (retval == ERROR_OK)
 564                 {
 565                         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));
 566                 }
 567         }
 568         else
 569         {
 570                 return ERROR_COMMAND_SYNTAX_ERROR;
 571
 572         }
 573
 574         return ERROR_OK;
 575 }
 576
 577 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 578 {
 579         target_t *target = get_current_target(cmd_ctx);
 580
 581         image_t image;
 582         u32 written;
 583
 584         duration_t duration;
 585         char *duration_text;
 586
 587         int retval;
 588
 589         if (argc < 1)
 590         {
 591                 return ERROR_COMMAND_SYNTAX_ERROR;
 592
 593         }
 594
 595         if (!target)
 596         {
 597                 ERROR("no target selected");
 598                 return ERROR_OK;
 599         }
 600
 601         duration_start_measure(&duration);
 602
 603         if (argc >= 2)
 604         {
 605                 image.base_address_set = 1;
 606                 image.base_address = strtoul(args[1], NULL, 0);
 607         }
 608         else
 609         {
 610                 image.base_address_set = 0;
 611                 image.base_address = 0x0;
 612         }
 613
 614         image.start_address_set = 0;
 615
 616         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
 617         if (retval != ERROR_OK)
 618         {
 619                 return retval;
 620         }
 621
 622         retval = flash_write(target, &image, &written, auto_erase);
 623
 624         if (retval != ERROR_OK)
 625         {
 626                 image_close(&image);
 627                 return retval;
 628         }
 629
 630         duration_stop_measure(&duration, &duration_text);
 631         if (retval == ERROR_OK)
 632         {
 633         command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
 634                 written, args[0], duration_text,
 635                 (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 636         }
 637         free(duration_text);
 638
 639         image_close(&image);
 640
 641         return retval;
 642 }
 643
 644 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 645 {
 646         u32 offset;
 647         u8 *buffer;
 648         u32 buf_cnt;
 649
 650         fileio_t fileio;
 651
 652         duration_t duration;
 653         char *duration_text;
 654
 655         int retval;
 656         flash_bank_t *p;
 657
 658         if (argc != 3)
 659         {
 660                 return ERROR_COMMAND_SYNTAX_ERROR;
 661         }
 662
 663         duration_start_measure(&duration);
 664
 665         offset = strtoul(args[2], NULL, 0);
 666         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 667         if (!p)
 668         {
 669                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 670                 return ERROR_OK;
 671         }
 672
 673         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 674         {
 675                 return ERROR_OK;
 676         }
 677
 678         buffer = malloc(fileio.size);
 679         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 680         {
 681                 return ERROR_OK;
 682         }
 683
 684         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 685
 686         free(buffer);
 687
 688         duration_stop_measure(&duration, &duration_text);
 689         if (retval!=ERROR_OK)
 690         {
 691         command_print(cmd_ctx, "wrote  %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
 692                 fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
 693                 (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 694         }
 695         free(duration_text);
 696
 697         fileio_close(&fileio);
 698
 699         return retval;
 700 }
 701
 702 void flash_set_dirty(void)
 703 {
 704         flash_bank_t *c;
 705         int i;
 706
 707         /* set all flash to require erasing */
 708         for (c = flash_banks; c; c = c->next)
 709         {
 710                 for (i = 0; i < c->num_sectors; i++)
 711                 {
 712                         c->sectors[i].is_erased = 0;
 713                 }
 714         }
 715 }
 716
 717 /* lookup flash bank by address */
 718 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
 719 {
 720         flash_bank_t *c;
 721
 722         /* cycle through bank list */
 723         for (c = flash_banks; c; c = c->next)
 724         {
 725                 int retval;
 726                 retval = c->driver->auto_probe(c);
 727
 728                 if (retval != ERROR_OK)
 729                 {
 730                         ERROR("auto_probe failed %d\n", retval);
 731                         return NULL;
 732                 }
 733                 /* check whether address belongs to this flash bank */
 734                 if ((addr >= c->base) && (addr < c->base + c->size) && target == c->target)
 735                         return c;
 736         }
 737         ERROR("No flash at address 0x%08x\n", addr);
 738         return NULL;
 739 }
 740
 741 /* erase given flash region, selects proper bank according to target and address */
 742 int flash_erase_address_range(target_t *target, u32 addr, u32 length)
 743 {
 744         flash_bank_t *c;
 745         int first = -1;
 746         int last = -1;
 747         int i;
 748
 749         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
 750                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
 751
 752         if (c->size == 0 || c->num_sectors == 0)
 753                 return ERROR_FLASH_BANK_INVALID;
 754
 755         if (length == 0)
 756         {
 757                 /* special case, erase whole bank when length is zero */
 758                 if (addr != c->base)
 759                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 760
 761                 return flash_driver_erase(c, 0, c->num_sectors - 1);
 762         }
 763
 764         /* check whether it fits */
 765         if (addr + length > c->base + c->size)
 766                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 767
 768         addr -= c->base;
 769
 770         for (i = 0; i < c->num_sectors; i++)
 771         {
 772                 /* check whether sector overlaps with the given range and is not yet erased */
 773                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
 774                         /* if first is not set yet then this is the first sector */
 775                         if (first == -1)
 776                                 first = i;
 777                         last = i; /* and it is the last one so far in any case */
 778                 }
 779         }
 780
 781         if( first == -1 || last == -1 )
 782                 return ERROR_OK;
 783
 784         return flash_driver_erase(c, first, last);
 785 }
 786
 787 /* write (optional verify) an image to flash memory of the given target */
 788 int flash_write(target_t *target, image_t *image, u32 *written, int erase)
 789 {
 790         int retval;
 791
 792         int section;
 793         u32 section_offset;
 794         flash_bank_t *c;
 795
 796         section = 0;
 797         section_offset = 0;
 798
 799         if (written)
 800                 *written = 0;
 801
 802         if (erase)
 803         {
 804                 /* assume all sectors need erasing - stops any problems
 805                  * when flash_write is called multiple times */
 806
 807                 flash_set_dirty();
 808         }
 809
 810         /* loop until we reach end of the image */
 811         while (section < image->num_sections)
 812         {
 813                 u32 buffer_size;
 814                 u8 *buffer;
 815                 int section_first;
 816                 int section_last;
 817                 u32 run_address = image->sections[section].base_address + section_offset;
 818                 u32 run_size = image->sections[section].size - section_offset;
 819
 820                 if (image->sections[section].size ==  0)
 821                 {
 822                         WARNING("empty section %d", section);
 823                         section++;
 824                         section_offset = 0;
 825                         continue;
 826                 }
 827
 828                 /* find the corresponding flash bank */
 829                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
 830                 {
 831                         section++; /* and skip it */
 832                         section_offset = 0;
 833                         continue;
 834                 }
 835
 836                 /* collect consecutive sections which fall into the same bank */
 837                 section_first = section;
 838                 section_last = section;
 839                 while ((run_address + run_size < c->base + c->size)
 840                                 && (section_last + 1 < image->num_sections))
 841                 {
 842                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
 843                         {
 844                                 DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
 845                                 break;
 846                         }
 847                         if (image->sections[section_last + 1].base_address != (run_address + run_size))
 848                                 break;
 849                         run_size += image->sections[++section_last].size;
 850                 }
 851
 852                 /* fit the run into bank constraints */
 853                 if (run_address + run_size > c->base + c->size)
 854                         run_size = c->base + c->size - run_address;
 855
 856                 /* allocate buffer */
 857                 buffer = malloc(run_size);
 858                 buffer_size = 0;
 859
 860                 /* read sections to the buffer */
 861                 while (buffer_size < run_size)
 862                 {
 863                         u32 size_read;
 864
 865                         if (buffer_size - run_size <= image->sections[section].size - section_offset)
 866                                 size_read = buffer_size - run_size;
 867                         else
 868                                 size_read = image->sections[section].size - section_offset;
 869
 870                         if ((retval = image_read_section(image, section, section_offset,
 871                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
 872                         {
 873                                 free(buffer);
 874
 875                                 return retval;
 876                         }
 877
 878                         buffer_size += size_read;
 879                         section_offset += size_read;
 880
 881                         if (section_offset >= image->sections[section].size)
 882                         {
 883                                 section++;
 884                                 section_offset = 0;
 885                         }
 886                 }
 887
 888                 retval = ERROR_OK;
 889
 890                 if (erase)
 891                 {
 892                         /* calculate and erase sectors */
 893                         retval = flash_erase_address_range( target, run_address, run_size );
 894                 }
 895
 896                 if (retval == ERROR_OK)
 897                 {
 898                         /* write flash sectors */
 899                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
 900                 }
 901
 902                 free(buffer);
 903
 904                 if (retval != ERROR_OK)
 905                 {
 906                                 return retval; /* abort operation */
 907                         }
 908
 909                 if (written != NULL)
 910                         *written += run_size; /* add run size to total written counter */
 911         }
 912
 913         return ERROR_OK;
 914 }
 915
 916 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 917 {
 918         if (argc != 1)
 919         {
 920                 return ERROR_COMMAND_SYNTAX_ERROR;
 921
 922         }
 923
 924         if (strcmp(args[0], "on") == 0)
 925                 auto_erase = 1;
 926         else if (strcmp(args[0], "off") == 0)
 927                 auto_erase = 0;
 928         else
 929                 return ERROR_COMMAND_SYNTAX_ERROR;
 930
 931         return ERROR_OK;
 932 }