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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008 by Spencer Oliver                                  *
   9  *   spen@spen-soft.co.uk                                                  *
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  *   This program is distributed in the hope that it will be useful,       *
  17  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  19  *   GNU General Public License for more details.                          *
  20  *                                                                         *
  21  *   You should have received a copy of the GNU General Public License     *
  22  *   along with this program; if not, write to the                         *
  23  *   Free Software Foundation, Inc.,                                       *
  24  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  25  ***************************************************************************/
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #include "flash.h"
  31 #include "image.h"
  32 #include "time_support.h"
  33
  34 #include <inttypes.h>
  35
  36 /* command handlers */
  37 static int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  38 static int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  39 static int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  40 static int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  41 static int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  42 static int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  43 static int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  44 static int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  45 static int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  46 static int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  47 static int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  48
  49 /* flash drivers
  50  */
  51 extern flash_driver_t lpc2000_flash;
  52 extern flash_driver_t cfi_flash;
  53 extern flash_driver_t at91sam7_flash;
  54 extern flash_driver_t str7x_flash;
  55 extern flash_driver_t str9x_flash;
  56 extern flash_driver_t aduc702x_flash;
  57 extern flash_driver_t stellaris_flash;
  58 extern flash_driver_t str9xpec_flash;
  59 extern flash_driver_t stm32x_flash;
  60 extern flash_driver_t tms470_flash;
  61 extern flash_driver_t ecosflash_flash;
  62 extern flash_driver_t lpc288x_flash;
  63 extern flash_driver_t ocl_flash;
  64 extern flash_driver_t pic32mx_flash;
  65 extern flash_driver_t avr_flash;
  66
  67 flash_driver_t *flash_drivers[] = {
  68         &lpc2000_flash,
  69         &cfi_flash,
  70         &at91sam7_flash,
  71         &str7x_flash,
  72         &str9x_flash,
  73         &aduc702x_flash,
  74         &stellaris_flash,
  75         &str9xpec_flash,
  76         &stm32x_flash,
  77         &tms470_flash,
  78         &ecosflash_flash,
  79         &lpc288x_flash,
  80         &ocl_flash,
  81         &pic32mx_flash,
  82         &avr_flash,
  83         NULL,
  84 };
  85
  86 flash_bank_t *flash_banks;
  87 static  command_t *flash_cmd;
  88
  89 /* wafer thin wrapper for invoking the flash driver */
  90 static int flash_driver_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
  91 {
  92         int retval;
  93
  94         retval=bank->driver->write(bank, buffer, offset, count);
  95         if (retval!=ERROR_OK)
  96         {
  97                 LOG_ERROR("error writing to flash at address 0x%08x at offset 0x%8.8x (%d)", bank->base, offset, retval);
  98         }
  99
 100         return retval;
 101 }
 102
 103 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
 104 {
 105         int retval;
 106
 107         retval=bank->driver->erase(bank, first, last);
 108         if (retval!=ERROR_OK)
 109         {
 110                 LOG_ERROR("failed erasing sectors %d to %d (%d)", first, last, retval);
 111         }
 112
 113         return retval;
 114 }
 115
 116 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
 117 {
 118         int retval;
 119
 120         retval=bank->driver->protect(bank, set, first, last);
 121         if (retval!=ERROR_OK)
 122         {
 123                 LOG_ERROR("failed setting protection for areas %d to %d (%d)", first, last, retval);
 124         }
 125
 126         return retval;
 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         return ERROR_OK;
 135 }
 136
 137 static int jim_flash_banks(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 138 {
 139         flash_bank_t *p;
 140
 141         if (argc != 1) {
 142                 Jim_WrongNumArgs(interp, 1, argv, "no arguments to flash_banks command");
 143                 return JIM_ERR;
 144         }
 145
 146         Jim_Obj *list=Jim_NewListObj(interp, NULL, 0);
 147         for (p = flash_banks; p; p = p->next)
 148         {
 149                 Jim_Obj *elem=Jim_NewListObj(interp, NULL, 0);
 150
 151                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
 152                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
 153                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
 154                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
 155                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
 156                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
 157                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
 158                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
 159                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
 160                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
 161
 162                 Jim_ListAppendElement(interp, list, elem);
 163         }
 164
 165         Jim_SetResult(interp, list);
 166
 167         return JIM_OK;
 168 }
 169
 170 int flash_init_drivers(struct command_context_s *cmd_ctx)
 171 {
 172         register_jim(cmd_ctx, "ocd_flash_banks", jim_flash_banks, "return information about the flash banks");
 173
 174         if (flash_banks)
 175         {
 176                 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
 177                                                  "print info about flash bank <num>");
 178                 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
 179                                                  "identify flash bank <num>");
 180                 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
 181                                                  "check erase state of sectors in flash bank <num>");
 182                 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
 183                                                  "check protection state of sectors in flash bank <num>");
 184                 register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
 185                                                  "erase sectors at <bank> <first> <last>");
 186                 register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
 187                                                  "erase address range <address> <length>");
 188
 189                 register_command(cmd_ctx, flash_cmd, "fillw", handle_flash_fill_command, COMMAND_EXEC,
 190                                                  "fill with pattern (no autoerase) <address> <word_pattern> <count>");
 191                 register_command(cmd_ctx, flash_cmd, "fillh", handle_flash_fill_command, COMMAND_EXEC,
 192                                                  "fill with pattern <address> <halfword_pattern> <count>");
 193                 register_command(cmd_ctx, flash_cmd, "fillb", handle_flash_fill_command, COMMAND_EXEC,
 194                                                  "fill with pattern <address> <byte_pattern> <count>");
 195
 196                 register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
 197                                                  "write binary data to <bank> <file> <offset>");
 198                 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
 199                                                  "write_image [erase] <file> [offset] [type]");
 200                 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
 201                                                  "set protection of sectors at <bank> <first> <last> <on|off>");
 202         }
 203
 204         return ERROR_OK;
 205 }
 206
 207 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
 208 {
 209         flash_bank_t *p;
 210         int i = 0;
 211
 212         for (p = flash_banks; p; p = p->next)
 213         {
 214                 if (i++ == num)
 215                 {
 216                         return p;
 217                 }
 218         }
 219         LOG_ERROR("flash bank %d does not exist", num);
 220         return NULL;
 221 }
 222
 223 int flash_get_bank_count(void)
 224 {
 225         flash_bank_t *p;
 226         int i = 0;
 227         for (p = flash_banks; p; p = p->next)
 228         {
 229                 i++;
 230         }
 231         return i;
 232 }
 233
 234 flash_bank_t *get_flash_bank_by_num(int num)
 235 {
 236         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
 237         int retval;
 238
 239         if (p == NULL)
 240                 return NULL;
 241
 242         retval = p->driver->auto_probe(p);
 243
 244         if (retval != ERROR_OK)
 245         {
 246                 LOG_ERROR("auto_probe failed %d\n", retval);
 247                 return NULL;
 248         }
 249         return p;
 250 }
 251
 252 static int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 253 {
 254         int retval;
 255         int i;
 256         int found = 0;
 257         target_t *target;
 258
 259         if (argc < 6)
 260         {
 261                 return ERROR_COMMAND_SYNTAX_ERROR;
 262         }
 263
 264         if ((target = get_target(args[5])) == NULL)
 265         {
 266                 LOG_ERROR("target '%s' not defined", args[5]);
 267                 return ERROR_FAIL;
 268         }
 269
 270         for (i = 0; flash_drivers[i]; i++)
 271         {
 272                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
 273                 {
 274                         flash_bank_t *p, *c;
 275
 276                         /* register flash specific commands */
 277                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 278                         {
 279                                 LOG_ERROR("couldn't register '%s' commands", args[0]);
 280                                 return ERROR_FAIL;
 281                         }
 282
 283                         c = malloc(sizeof(flash_bank_t));
 284                         c->target = target;
 285                         c->driver = flash_drivers[i];
 286                         c->driver_priv = NULL;
 287                         c->base = strtoul(args[1], NULL, 0);
 288                         c->size = strtoul(args[2], NULL, 0);
 289                         c->chip_width = strtoul(args[3], NULL, 0);
 290                         c->bus_width = strtoul(args[4], NULL, 0);
 291                         c->num_sectors = 0;
 292                         c->sectors = NULL;
 293                         c->next = NULL;
 294
 295                         if ((retval=flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c)) != ERROR_OK)
 296                         {
 297                                 LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
 298                                 free(c);
 299                                 return retval;
 300                         }
 301
 302                         /* put flash bank in linked list */
 303                         if (flash_banks)
 304                         {
 305                                 int     bank_num = 0;
 306                                 /* find last flash bank */
 307                                 for (p = flash_banks; p && p->next; p = p->next) bank_num++;
 308                                 if (p)
 309                                         p->next = c;
 310                                 c->bank_number = bank_num + 1;
 311                         }
 312                         else
 313                         {
 314                                 flash_banks = c;
 315                                 c->bank_number = 0;
 316                         }
 317
 318                         found = 1;
 319                 }
 320         }
 321
 322         /* no matching flash driver found */
 323         if (!found)
 324         {
 325                 LOG_ERROR("flash driver '%s' not found", args[0]);
 326                 return ERROR_FAIL;
 327         }
 328
 329         return ERROR_OK;
 330 }
 331
 332 static int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 333 {
 334         flash_bank_t *p;
 335         u32 i = 0;
 336         int j = 0;
 337         int retval;
 338
 339         if (argc != 1)
 340         {
 341                 return ERROR_COMMAND_SYNTAX_ERROR;
 342         }
 343
 344         for (p = flash_banks; p; p = p->next, i++)
 345         {
 346                 if (i == strtoul(args[0], NULL, 0))
 347                 {
 348                         char buf[1024];
 349
 350                         /* attempt auto probe */
 351                         if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
 352                                 return retval;
 353
 354                         command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 355                                                 i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 356                         for (j = 0; j < p->num_sectors; j++)
 357                         {
 358                                 char *protect_state;
 359
 360                                 if (p->sectors[j].is_protected == 0)
 361                                         protect_state = "not protected";
 362                                 else if (p->sectors[j].is_protected == 1)
 363                                         protect_state = "protected";
 364                                 else
 365                                         protect_state = "protection state unknown";
 366
 367                                 command_print(cmd_ctx, "\t#%3i: 0x%8.8x (0x%x %ikB) %s",
 368                                                         j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 369                                                         protect_state);
 370                         }
 371
 372                         *buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
 373                         retval = p->driver->info(p, buf, sizeof(buf));
 374                         command_print(cmd_ctx, "%s", buf);
 375                         if (retval != ERROR_OK)
 376                                 LOG_ERROR("error retrieving flash info (%d)", retval);
 377                 }
 378         }
 379
 380         return ERROR_OK;
 381 }
 382
 383 static int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 384 {
 385         flash_bank_t *p;
 386         int retval;
 387
 388         if (argc != 1)
 389         {
 390                 return ERROR_COMMAND_SYNTAX_ERROR;
 391         }
 392
 393         p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
 394         if (p)
 395         {
 396                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 397                 {
 398                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
 399                 }
 400                 else if (retval == ERROR_FLASH_BANK_INVALID)
 401                 {
 402                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
 403                                                   args[0], p->base);
 404                 }
 405                 else
 406                 {
 407                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
 408                                                   args[0], p->base);
 409                 }
 410         }
 411         else
 412         {
 413                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 414         }
 415
 416         return ERROR_OK;
 417 }
 418
 419 static int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 420 {
 421         flash_bank_t *p;
 422         int retval;
 423
 424         if (argc != 1)
 425         {
 426                 return ERROR_COMMAND_SYNTAX_ERROR;
 427         }
 428
 429         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 430         if (p)
 431         {
 432                 int j;
 433                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 434                 {
 435                         command_print(cmd_ctx, "successfully checked erase state");
 436                 }
 437                 else
 438                 {
 439                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
 440                                 args[0], p->base);
 441                 }
 442
 443                 for (j = 0; j < p->num_sectors; j++)
 444                 {
 445                         char *erase_state;
 446
 447                         if (p->sectors[j].is_erased == 0)
 448                                 erase_state = "not erased";
 449                         else if (p->sectors[j].is_erased == 1)
 450                                 erase_state = "erased";
 451                         else
 452                                 erase_state = "erase state unknown";
 453
 454                         command_print(cmd_ctx, "\t#%3i: 0x%8.8x (0x%x %ikB) %s",
 455                                                 j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 456                                                 erase_state);
 457                 }
 458         }
 459
 460         return ERROR_OK;
 461 }
 462
 463 static int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 464 {
 465         flash_bank_t *p;
 466         int retval;
 467         int address;
 468         int length;
 469         duration_t duration;
 470         char *duration_text;
 471
 472         target_t *target = get_current_target(cmd_ctx);
 473
 474         if (argc != 2)
 475         {
 476                 return ERROR_COMMAND_SYNTAX_ERROR;
 477         }
 478
 479         address = strtoul(args[0], NULL, 0);
 480         length = strtoul(args[1], NULL, 0);
 481         if (length <= 0)
 482         {
 483                 command_print(cmd_ctx, "Length must be >0");
 484                 return ERROR_COMMAND_SYNTAX_ERROR;
 485         }
 486
 487         p = get_flash_bank_by_addr(target, address);
 488         if (p == NULL)
 489         {
 490                 return ERROR_FAIL;
 491         }
 492
 493         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 494         flash_set_dirty();
 495
 496         duration_start_measure(&duration);
 497
 498         if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
 499         {
 500                 if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 501                 {
 502                         return retval;
 503                 }
 504                 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
 505                 free(duration_text);
 506         }
 507
 508         return retval;
 509 }
 510
 511 static int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 512 {
 513         flash_bank_t *p;
 514         int retval;
 515
 516         if (argc != 1)
 517         {
 518                 return ERROR_COMMAND_SYNTAX_ERROR;
 519         }
 520
 521         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 522         if (p)
 523         {
 524                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 525                 {
 526                         command_print(cmd_ctx, "successfully checked protect state");
 527                 }
 528                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
 529                 {
 530                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
 531                 }
 532                 else
 533                 {
 534                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
 535                 }
 536         }
 537         else
 538         {
 539                 return ERROR_COMMAND_SYNTAX_ERROR;
 540         }
 541
 542         return ERROR_OK;
 543 }
 544
 545 static int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 546 {
 547         if (argc > 2)
 548         {
 549                 int first = strtoul(args[1], NULL, 0);
 550                 int last = strtoul(args[2], NULL, 0);
 551                 int retval;
 552                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 553                 duration_t duration;
 554                 char *duration_text;
 555
 556                 duration_start_measure(&duration);
 557
 558                 if (!p)
 559                 {
 560                         return ERROR_COMMAND_SYNTAX_ERROR;
 561                 }
 562
 563                 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
 564                 {
 565                         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 566                         {
 567                                 return retval;
 568                         }
 569
 570                         command_print(cmd_ctx, "erased sectors %i through %i on flash bank %li in %s",
 571                                 first, last, strtoul(args[0], 0, 0), duration_text);
 572                         free(duration_text);
 573                 }
 574         }
 575         else
 576         {
 577                 return ERROR_COMMAND_SYNTAX_ERROR;
 578         }
 579
 580         return ERROR_OK;
 581 }
 582
 583 static int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 584 {
 585         if (argc > 3)
 586         {
 587                 int first = strtoul(args[1], NULL, 0);
 588                 int last = strtoul(args[2], NULL, 0);
 589                 int set;
 590                 int retval;
 591                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 592                 if (!p)
 593                 {
 594                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 595                         return ERROR_OK;
 596                 }
 597
 598                 if (strcmp(args[3], "on") == 0)
 599                         set = 1;
 600                 else if (strcmp(args[3], "off") == 0)
 601                         set = 0;
 602                 else
 603                 {
 604                         return ERROR_COMMAND_SYNTAX_ERROR;
 605                 }
 606
 607                 retval = flash_driver_protect(p, set, first, last);
 608                 if (retval == ERROR_OK)
 609                 {
 610                         command_print(cmd_ctx, "%s protection for sectors %i through %i on flash bank %li",
 611                                 (set) ? "set" : "cleared", first,
 612                                 last, strtoul(args[0], 0, 0));
 613                 }
 614         }
 615         else
 616         {
 617                 return ERROR_COMMAND_SYNTAX_ERROR;
 618
 619         }
 620
 621         return ERROR_OK;
 622 }
 623
 624 static int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 625 {
 626         target_t *target = get_current_target(cmd_ctx);
 627
 628         image_t image;
 629         u32 written;
 630
 631         duration_t duration;
 632         char *duration_text;
 633
 634         int retval, retvaltemp;
 635
 636         if (argc < 1)
 637         {
 638                 return ERROR_COMMAND_SYNTAX_ERROR;
 639         }
 640
 641         /* flash auto-erase is disabled by default*/
 642         int auto_erase = 0;
 643
 644         if (strcmp(args[0], "erase")==0)
 645         {
 646                 auto_erase = 1;
 647                 args++;
 648                 argc--;
 649                 command_print(cmd_ctx, "auto erase enabled");
 650         }
 651
 652         if (argc < 1)
 653         {
 654                 return ERROR_COMMAND_SYNTAX_ERROR;
 655         }
 656
 657         if (!target)
 658         {
 659                 LOG_ERROR("no target selected");
 660                 return ERROR_FAIL;
 661         }
 662
 663         duration_start_measure(&duration);
 664
 665         if (argc >= 2)
 666         {
 667                 image.base_address_set = 1;
 668                 image.base_address = strtoul(args[1], NULL, 0);
 669         }
 670         else
 671         {
 672                 image.base_address_set = 0;
 673                 image.base_address = 0x0;
 674         }
 675
 676         image.start_address_set = 0;
 677
 678         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
 679         if (retval != ERROR_OK)
 680         {
 681                 return retval;
 682         }
 683
 684         retval = flash_write(target, &image, &written, auto_erase);
 685         if (retval != ERROR_OK)
 686         {
 687                 image_close(&image);
 688                 return retval;
 689         }
 690
 691         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 692         {
 693                 image_close(&image);
 694                 return retvaltemp;
 695         }
 696         if (retval == ERROR_OK)
 697         {
 698                 command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
 699                                 written, args[0], duration_text,
 700                                 (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 701         }
 702         free(duration_text);
 703
 704         image_close(&image);
 705
 706         return retval;
 707 }
 708
 709 static int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 710 {
 711         int err = ERROR_OK, retval;
 712         u32 address;
 713         u32 pattern;
 714         u32 count;
 715         u8 chunk[1024];
 716         u8 readback[1024];
 717         u32 wrote = 0;
 718         u32 cur_size = 0;
 719         u32 chunk_count;
 720         char *duration_text;
 721         duration_t duration;
 722         target_t *target = get_current_target(cmd_ctx);
 723         u32 i;
 724         u32 wordsize;
 725
 726         if (argc != 3)
 727         {
 728                 return ERROR_COMMAND_SYNTAX_ERROR;
 729         }
 730
 731         address = strtoul(args[0], NULL, 0);
 732         pattern = strtoul(args[1], NULL, 0);
 733         count   = strtoul(args[2], NULL, 0);
 734
 735         if(count == 0)
 736                 return ERROR_OK;
 737
 738         switch(cmd[4])
 739         {
 740         case 'w':
 741                 wordsize=4;
 742                 break;
 743         case 'h':
 744                 wordsize=2;
 745                 break;
 746         case 'b':
 747                 wordsize=1;
 748                 break;
 749         default:
 750                 return ERROR_COMMAND_SYNTAX_ERROR;
 751         }
 752
 753         chunk_count = MIN(count, (1024 / wordsize));
 754         switch(wordsize)
 755         {
 756         case 4:
 757                 for(i = 0; i < chunk_count; i++)
 758                 {
 759                         target_buffer_set_u32(target, chunk + i * wordsize, pattern);
 760                 }
 761                 break;
 762         case 2:
 763                 for(i = 0; i < chunk_count; i++)
 764                 {
 765                         target_buffer_set_u16(target, chunk + i * wordsize, pattern);
 766                 }
 767                 break;
 768         case 1:
 769                 memset(chunk, pattern, chunk_count);
 770                 break;
 771         default:
 772                 LOG_ERROR("BUG: can't happen");
 773                 exit(-1);
 774         }
 775
 776         duration_start_measure(&duration);
 777
 778         for (wrote=0; wrote<(count*wordsize); wrote += cur_size)
 779         {
 780                 cur_size = MIN( (count*wordsize - wrote), sizeof(chunk) );
 781                 flash_bank_t *bank;
 782                 bank = get_flash_bank_by_addr(target, address);
 783                 if(bank == NULL)
 784                 {
 785                         return ERROR_FAIL;
 786                 }
 787                 err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
 788                 if (err!=ERROR_OK)
 789                         return err;
 790
 791                 err = target_read_buffer(target, address + wrote, cur_size, readback);
 792                 if (err!=ERROR_OK)
 793                         return err;
 794
 795                 unsigned i;
 796                 for (i=0; i<cur_size; i++)
 797                 {
 798                         if (readback[i]!=chunk[i])
 799                         {
 800                                 LOG_ERROR("Verfication error address 0x%08x, read back 0x%02x, expected 0x%02x", address + wrote + i, readback[i], chunk[i]);
 801                                 return ERROR_FAIL;
 802                         }
 803                 }
 804
 805         }
 806
 807         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 808         {
 809                 return retval;
 810         }
 811
 812         if(err == ERROR_OK)
 813         {
 814                 float speed;
 815                 speed=wrote / 1024.0;
 816                 speed/=((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0));
 817                 command_print(cmd_ctx, "wrote %d bytes to 0x%8.8x in %s (%f kb/s)",
 818                         count*wordsize, address, duration_text,
 819                         speed);
 820         }
 821         free(duration_text);
 822         return ERROR_OK;
 823 }
 824
 825 static int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 826 {
 827         u32 offset;
 828         u8 *buffer;
 829         u32 buf_cnt;
 830
 831         fileio_t fileio;
 832
 833         duration_t duration;
 834         char *duration_text;
 835
 836         int retval, retvaltemp;
 837         flash_bank_t *p;
 838
 839         if (argc != 3)
 840         {
 841                 return ERROR_COMMAND_SYNTAX_ERROR;
 842         }
 843
 844         duration_start_measure(&duration);
 845
 846         offset = strtoul(args[2], NULL, 0);
 847         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 848         if (!p)
 849         {
 850                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 851                 return ERROR_OK;
 852         }
 853
 854         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 855         {
 856                 return ERROR_OK;
 857         }
 858
 859         buffer = malloc(fileio.size);
 860         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 861         {
 862                 free(buffer);
 863                 fileio_close(&fileio);
 864                 return ERROR_OK;
 865         }
 866
 867         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 868
 869         free(buffer);
 870         buffer = NULL;
 871
 872         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 873         {
 874                 fileio_close(&fileio);
 875                 return retvaltemp;
 876         }
 877         if (retval==ERROR_OK)
 878         {
 879         command_print(cmd_ctx, "wrote  %lld byte from file %s to flash bank %li at offset 0x%8.8x in %s (%f kb/s)",
 880                 fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
 881                 (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 882         }
 883         free(duration_text);
 884
 885         fileio_close(&fileio);
 886
 887         return retval;
 888 }
 889
 890 void flash_set_dirty(void)
 891 {
 892         flash_bank_t *c;
 893         int i;
 894
 895         /* set all flash to require erasing */
 896         for (c = flash_banks; c; c = c->next)
 897         {
 898                 for (i = 0; i < c->num_sectors; i++)
 899                 {
 900                         c->sectors[i].is_erased = 0;
 901                 }
 902         }
 903 }
 904
 905 /* lookup flash bank by address */
 906 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
 907 {
 908         flash_bank_t *c;
 909
 910         /* cycle through bank list */
 911         for (c = flash_banks; c; c = c->next)
 912         {
 913                 int retval;
 914                 retval = c->driver->auto_probe(c);
 915
 916                 if (retval != ERROR_OK)
 917                 {
 918                         LOG_ERROR("auto_probe failed %d\n", retval);
 919                         return NULL;
 920                 }
 921                 /* check whether address belongs to this flash bank */
 922                 if ((addr >= c->base) && (addr <= c->base + (c->size - 1)) && target == c->target)
 923                         return c;
 924         }
 925         LOG_ERROR("No flash at address 0x%08x\n", addr);
 926         return NULL;
 927 }
 928
 929 /* erase given flash region, selects proper bank according to target and address */
 930 int flash_erase_address_range(target_t *target, u32 addr, u32 length)
 931 {
 932         flash_bank_t *c;
 933         int first = -1;
 934         int last = -1;
 935         int i;
 936
 937         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
 938                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
 939
 940         if (c->size == 0 || c->num_sectors == 0)
 941         {
 942                 LOG_ERROR("Bank is invalid");
 943                 return ERROR_FLASH_BANK_INVALID;
 944         }
 945
 946         if (length == 0)
 947         {
 948                 /* special case, erase whole bank when length is zero */
 949                 if (addr != c->base)
 950                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 951
 952                 return flash_driver_erase(c, 0, c->num_sectors - 1);
 953         }
 954
 955         /* check whether it fits */
 956         if (addr + length - 1 > c->base + c->size - 1)
 957                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 958
 959         addr -= c->base;
 960
 961         for (i = 0; i < c->num_sectors; i++)
 962         {
 963                 /* check whether sector overlaps with the given range and is not yet erased */
 964                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
 965                         /* if first is not set yet then this is the first sector */
 966                         if (first == -1)
 967                                 first = i;
 968                         last = i; /* and it is the last one so far in any case */
 969                 }
 970         }
 971
 972         if( first == -1 || last == -1 )
 973                 return ERROR_OK;
 974
 975         return flash_driver_erase(c, first, last);
 976 }
 977
 978 /* write (optional verify) an image to flash memory of the given target */
 979 int flash_write(target_t *target, image_t *image, u32 *written, int erase)
 980 {
 981         int retval=ERROR_OK;
 982
 983         int section;
 984         u32 section_offset;
 985         flash_bank_t *c;
 986         int *padding;
 987
 988         section = 0;
 989         section_offset = 0;
 990
 991         if (written)
 992                 *written = 0;
 993
 994         if (erase)
 995         {
 996                 /* assume all sectors need erasing - stops any problems
 997                  * when flash_write is called multiple times */
 998
 999                 flash_set_dirty();
1000         }
1001
1002         /* allocate padding array */
1003         padding = malloc(image->num_sections * sizeof(padding));
1004
1005         /* loop until we reach end of the image */
1006         while (section < image->num_sections)
1007         {
1008                 u32 buffer_size;
1009                 u8 *buffer;
1010                 int section_first;
1011                 int section_last;
1012                 u32 run_address = image->sections[section].base_address + section_offset;
1013                 u32 run_size = image->sections[section].size - section_offset;
1014                 int pad_bytes = 0;
1015
1016                 if (image->sections[section].size ==  0)
1017                 {
1018                         LOG_WARNING("empty section %d", section);
1019                         section++;
1020                         section_offset = 0;
1021                         continue;
1022                 }
1023
1024                 /* find the corresponding flash bank */
1025                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
1026                 {
1027                         section++; /* and skip it */
1028                         section_offset = 0;
1029                         continue;
1030                 }
1031
1032                 /* collect consecutive sections which fall into the same bank */
1033                 section_first = section;
1034                 section_last = section;
1035                 padding[section] = 0;
1036                 while ((run_address + run_size - 1 < c->base + c->size - 1)
1037                                 && (section_last + 1 < image->num_sections))
1038                 {
1039                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
1040                         {
1041                                 LOG_DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
1042                                 break;
1043                         }
1044                         /* if we have multiple sections within our image, flash programming could fail due to alignment issues
1045                          * attempt to rebuild a consecutive buffer for the flash loader */
1046                         pad_bytes = (image->sections[section_last + 1].base_address) - (run_address + run_size);
1047                         if ((run_address + run_size + pad_bytes) > (c->base + c->size))
1048                                 break;
1049                         padding[section_last] = pad_bytes;
1050                         run_size += image->sections[++section_last].size;
1051                         run_size += pad_bytes;
1052                         padding[section_last] = 0;
1053
1054                         LOG_INFO("Padding image section %d with %d bytes", section_last-1, pad_bytes );
1055                 }
1056
1057                 /* fit the run into bank constraints */
1058                 if (run_address + run_size - 1 > c->base + c->size - 1)
1059                 {
1060                         LOG_WARNING("writing %d bytes only - as image section is %d bytes and bank is only %d bytes", \
1061                                         c->base + c->size - run_address, run_size, c->size);
1062                         run_size = c->base + c->size - run_address;
1063                 }
1064
1065                 /* allocate buffer */
1066                 buffer = malloc(run_size);
1067                 buffer_size = 0;
1068
1069                 /* read sections to the buffer */
1070                 while (buffer_size < run_size)
1071                 {
1072                         u32 size_read;
1073
1074                         size_read = run_size - buffer_size;
1075                         if (size_read > image->sections[section].size - section_offset)
1076                             size_read = image->sections[section].size - section_offset;
1077
1078                         if ((retval = image_read_section(image, section, section_offset,
1079                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
1080                         {
1081                                 free(buffer);
1082                                 free(padding);
1083                                 return retval;
1084                         }
1085
1086                         /* see if we need to pad the section */
1087                         while (padding[section]--)
1088                                  (buffer+buffer_size)[size_read++] = 0xff;
1089
1090                         buffer_size += size_read;
1091                         section_offset += size_read;
1092
1093                         if (section_offset >= image->sections[section].size)
1094                         {
1095                                 section++;
1096                                 section_offset = 0;
1097                         }
1098                 }
1099
1100                 retval = ERROR_OK;
1101
1102                 if (erase)
1103                 {
1104                         /* calculate and erase sectors */
1105                         retval = flash_erase_address_range( target, run_address, run_size );
1106                 }
1107
1108                 if (retval == ERROR_OK)
1109                 {
1110                         /* write flash sectors */
1111                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
1112                 }
1113
1114                 free(buffer);
1115
1116                 if (retval != ERROR_OK)
1117                 {
1118                         free(padding);
1119                         return retval; /* abort operation */
1120                 }
1121
1122                 if (written != NULL)
1123                         *written += run_size; /* add run size to total written counter */
1124         }
1125
1126         free(padding);
1127
1128         return retval;
1129 }
1130
1131 int default_flash_mem_blank_check(struct flash_bank_s *bank)
1132 {
1133         target_t *target = bank->target;
1134         u8 buffer[1024];
1135         int buffer_size = sizeof(buffer);
1136         int i;
1137         u32 nBytes;
1138
1139         if (bank->target->state != TARGET_HALTED)
1140         {
1141                 LOG_ERROR("Target not halted");
1142                 return ERROR_TARGET_NOT_HALTED;
1143         }
1144
1145         for (i = 0; i < bank->num_sectors; i++)
1146         {
1147                 u32 j;
1148                 bank->sectors[i].is_erased = 1;
1149
1150                 for (j = 0; j < bank->sectors[i].size; j += buffer_size)
1151                 {
1152                         u32 chunk;
1153                         int retval;
1154                         chunk = buffer_size;
1155                         if (chunk > (j - bank->sectors[i].size))
1156                         {
1157                                 chunk = (j - bank->sectors[i].size);
1158                         }
1159
1160                         retval = target->type->read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
1161                         if (retval != ERROR_OK)
1162                                 return retval;
1163
1164                         for (nBytes = 0; nBytes < chunk; nBytes++)
1165                         {
1166                                 if (buffer[nBytes] != 0xFF)
1167                                 {
1168                                         bank->sectors[i].is_erased = 0;
1169                                         break;
1170                                 }
1171                         }
1172                 }
1173         }
1174
1175         return ERROR_OK;
1176 }
1177
1178 int default_flash_blank_check(struct flash_bank_s *bank)
1179 {
1180         target_t *target = bank->target;
1181         int i;
1182         int retval;
1183         int fast_check = 0;
1184         u32 blank;
1185
1186         if (bank->target->state != TARGET_HALTED)
1187         {
1188                 LOG_ERROR("Target not halted");
1189                 return ERROR_TARGET_NOT_HALTED;
1190         }
1191
1192         for (i = 0; i < bank->num_sectors; i++)
1193         {
1194                 u32 address = bank->base + bank->sectors[i].offset;
1195                 u32 size = bank->sectors[i].size;
1196
1197                 if ((retval = target_blank_check_memory(target, address, size, &blank)) != ERROR_OK)
1198                 {
1199                         fast_check = 0;
1200                         break;
1201                 }
1202                 if (blank == 0xFF)
1203                         bank->sectors[i].is_erased = 1;
1204                 else
1205                         bank->sectors[i].is_erased = 0;
1206                 fast_check = 1;
1207         }
1208
1209         if (!fast_check)
1210         {
1211                 LOG_USER("Running slow fallback erase check - add working memory");
1212                 return default_flash_mem_blank_check(bank);
1213         }
1214
1215         return ERROR_OK;
1216 }