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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 "command.h"
  32 #include "target.h"
  33 #include "time_support.h"
  34 #include "fileio.h"
  35 #include "image.h"
  36 #include "log.h"
  37 #include "armv4_5.h"
  38 #include "algorithm.h"
  39 #include "binarybuffer.h"
  40 #include "armv7m.h"
  41
  42 #include <string.h>
  43 #include <unistd.h>
  44 #include <stdlib.h>
  45 #include <sys/types.h>
  46 #include <sys/stat.h>
  47 #include <errno.h>
  48 #include <inttypes.h>
  49
  50 /* command handlers */
  51 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_flash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr);
  64
  65 /* flash drivers
  66  */
  67 extern flash_driver_t lpc2000_flash;
  68 extern flash_driver_t cfi_flash;
  69 extern flash_driver_t at91sam7_flash;
  70 extern flash_driver_t at91sam7_old_flash;
  71 extern flash_driver_t str7x_flash;
  72 extern flash_driver_t str9x_flash;
  73 extern flash_driver_t aduc702x_flash;
  74 extern flash_driver_t stellaris_flash;
  75 extern flash_driver_t str9xpec_flash;
  76 extern flash_driver_t stm32x_flash;
  77 extern flash_driver_t tms470_flash;
  78 extern flash_driver_t ecosflash_flash;
  79 extern flash_driver_t lpc288x_flash;
  80 extern flash_driver_t ocl_flash;
  81
  82 flash_driver_t *flash_drivers[] = {
  83         &lpc2000_flash,
  84         &cfi_flash,
  85         &at91sam7_flash,
  86         &at91sam7_old_flash,
  87         &str7x_flash,
  88         &str9x_flash,
  89         &aduc702x_flash,
  90         &stellaris_flash,
  91         &str9xpec_flash,
  92         &stm32x_flash,
  93         &tms470_flash,
  94         &ecosflash_flash,
  95         &lpc288x_flash,
  96         &ocl_flash,
  97         NULL,
  98 };
  99
 100 flash_bank_t *flash_banks;
 101 static  command_t *flash_cmd;
 102
 103 /* wafer thin wrapper for invoking the flash driver */
 104 static int flash_driver_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
 105 {
 106         int retval;
 107
 108         retval=bank->driver->write(bank, buffer, offset, count);
 109         if (retval!=ERROR_OK)
 110         {
 111                 LOG_ERROR("error writing to flash at address 0x%08x at offset 0x%8.8x (%d)", bank->base, offset, retval);
 112         }
 113
 114         return retval;
 115 }
 116
 117 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
 118 {
 119         int retval;
 120
 121         retval=bank->driver->erase(bank, first, last);
 122         if (retval!=ERROR_OK)
 123         {
 124                 LOG_ERROR("failed erasing sectors %d to %d (%d)", first, last, retval);
 125         }
 126
 127         return retval;
 128 }
 129
 130 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
 131 {
 132         int retval;
 133
 134         retval=bank->driver->protect(bank, set, first, last);
 135         if (retval!=ERROR_OK)
 136         {
 137                 LOG_ERROR("failed setting protection for areas %d to %d (%d)", first, last, retval);
 138         }
 139
 140         return retval;
 141 }
 142
 143 int flash_register_commands(struct command_context_s *cmd_ctx)
 144 {
 145         flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
 146
 147         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 ...]");
 148         return ERROR_OK;
 149 }
 150
 151 static int jim_flash_banks(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 152 {
 153         flash_bank_t *p;
 154
 155         if (argc != 1) {
 156                 Jim_WrongNumArgs(interp, 1, argv, "no arguments to flash_banks command");
 157                 return JIM_ERR;
 158         }
 159
 160         if (!flash_banks)
 161         {
 162                 return JIM_ERR;
 163         }
 164
 165         Jim_Obj *list=Jim_NewListObj(interp, NULL, 0);
 166         for (p = flash_banks; p; p = p->next)
 167         {
 168                 Jim_Obj *elem=Jim_NewListObj(interp, NULL, 0);
 169
 170                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
 171                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
 172                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
 173                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
 174                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
 175                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
 176                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
 177                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
 178                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
 179                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
 180
 181                 Jim_ListAppendElement(interp, list, elem);
 182         }
 183
 184         Jim_SetResult(interp, list);
 185
 186         return JIM_OK;
 187 }
 188
 189 int flash_init_drivers(struct command_context_s *cmd_ctx)
 190 {
 191         if (flash_banks)
 192         {
 193                 register_jim(cmd_ctx, "ocd_flash_banks", jim_flash_banks, "return information about the flash banks");
 194
 195                 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
 196                                                  "print info about flash bank <num>");
 197                 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
 198                                                  "identify flash bank <num>");
 199                 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
 200                                                  "check erase state of sectors in flash bank <num>");
 201                 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
 202                                                  "check protection state of sectors in flash bank <num>");
 203                 register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
 204                                                  "erase sectors at <bank> <first> <last>");
 205                 register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
 206                                                  "erase address range <address> <length>");
 207
 208                 register_command(cmd_ctx, flash_cmd, "fillw", handle_flash_fill_command, COMMAND_EXEC,
 209                                                  "fill with pattern (no autoerase) <address> <word_pattern> <count>");
 210                 register_command(cmd_ctx, flash_cmd, "fillh", handle_flash_fill_command, COMMAND_EXEC,
 211                                                  "fill with pattern <address> <halfword_pattern> <count>");
 212                 register_command(cmd_ctx, flash_cmd, "fillb", handle_flash_fill_command, COMMAND_EXEC,
 213                                                  "fill with pattern <address> <byte_pattern> <count>");
 214
 215                 register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
 216                                                  "write binary data to <bank> <file> <offset>");
 217                 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
 218                                                  "write_image [erase] <file> [offset] [type]");
 219                 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
 220                                                  "set protection of sectors at <bank> <first> <last> <on|off>");
 221         }
 222
 223         return ERROR_OK;
 224 }
 225
 226 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
 227 {
 228         flash_bank_t *p;
 229         int i = 0;
 230
 231         for (p = flash_banks; p; p = p->next)
 232         {
 233                 if (i++ == num)
 234                 {
 235                         return p;
 236                 }
 237         }
 238         LOG_ERROR("flash bank %d does not exist", num);
 239         return NULL;
 240 }
 241
 242 int flash_get_bank_count(void)
 243 {
 244         flash_bank_t *p;
 245         int i = 0;
 246         for (p = flash_banks; p; p = p->next)
 247         {
 248                 i++;
 249         }
 250         return i;
 251 }
 252
 253 flash_bank_t *get_flash_bank_by_num(int num)
 254 {
 255         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
 256         int retval;
 257
 258         if (p == NULL)
 259                 return NULL;
 260
 261         retval = p->driver->auto_probe(p);
 262
 263         if (retval != ERROR_OK)
 264         {
 265                 LOG_ERROR("auto_probe failed %d\n", retval);
 266                 return NULL;
 267         }
 268         return p;
 269 }
 270
 271 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 272 {
 273         int retval;
 274         int i;
 275         int found = 0;
 276         target_t *target;
 277
 278         if (argc < 6)
 279         {
 280                 return ERROR_COMMAND_SYNTAX_ERROR;
 281         }
 282
 283         if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
 284         {
 285                 LOG_ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
 286                 return ERROR_FAIL;
 287         }
 288
 289         for (i = 0; flash_drivers[i]; i++)
 290         {
 291                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
 292                 {
 293                         flash_bank_t *p, *c;
 294
 295                         /* register flash specific commands */
 296                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 297                         {
 298                                 LOG_ERROR("couldn't register '%s' commands", args[0]);
 299                                 return ERROR_FAIL;
 300                         }
 301
 302                         c = malloc(sizeof(flash_bank_t));
 303                         c->target = target;
 304                         c->driver = flash_drivers[i];
 305                         c->driver_priv = NULL;
 306                         c->base = strtoul(args[1], NULL, 0);
 307                         c->size = strtoul(args[2], NULL, 0);
 308                         c->chip_width = strtoul(args[3], NULL, 0);
 309                         c->bus_width = strtoul(args[4], NULL, 0);
 310                         c->num_sectors = 0;
 311                         c->sectors = NULL;
 312                         c->next = NULL;
 313
 314                         if ((retval=flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c)) != ERROR_OK)
 315                         {
 316                                 LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
 317                                 free(c);
 318                                 return retval;
 319                         }
 320
 321                         /* put flash bank in linked list */
 322                         if (flash_banks)
 323                         {
 324                                 /* find last flash bank */
 325                                 for (p = flash_banks; p && p->next; p = p->next);
 326                                 if (p)
 327                                         p->next = c;
 328                         }
 329                         else
 330                         {
 331                                 flash_banks = c;
 332                         }
 333
 334                         found = 1;
 335                 }
 336         }
 337
 338         /* no matching flash driver found */
 339         if (!found)
 340         {
 341                 LOG_ERROR("flash driver '%s' not found", args[0]);
 342                 return ERROR_FAIL;
 343         }
 344
 345         return ERROR_OK;
 346 }
 347
 348 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 349 {
 350         flash_bank_t *p;
 351         int i = 0;
 352         int j = 0;
 353         int retval;
 354
 355         if (argc != 1)
 356         {
 357                 return ERROR_COMMAND_SYNTAX_ERROR;
 358         }
 359
 360         for (p = flash_banks; p; p = p->next, i++)
 361         {
 362                 if (i == strtoul(args[0], NULL, 0))
 363                 {
 364                         char buf[1024];
 365
 366                         /* attempt auto probe */
 367                         if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
 368                                 return retval;
 369
 370                         command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 371                                                 i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 372                         for (j = 0; j < p->num_sectors; j++)
 373                         {
 374                                 char *protect_state;
 375
 376                                 if (p->sectors[j].is_protected == 0)
 377                                         protect_state = "not protected";
 378                                 else if (p->sectors[j].is_protected == 1)
 379                                         protect_state = "protected";
 380                                 else
 381                                         protect_state = "protection state unknown";
 382
 383                                 command_print(cmd_ctx, "\t#%3i: 0x%8.8x (0x%x %ikB) %s",
 384                                                         j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 385                                                         protect_state);
 386                         }
 387
 388                         *buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
 389                         retval = p->driver->info(p, buf, sizeof(buf));
 390                         command_print(cmd_ctx, "%s", buf);
 391                         if (retval != ERROR_OK)
 392                                 LOG_ERROR("error retrieving flash info (%d)", retval);
 393                 }
 394         }
 395
 396         return ERROR_OK;
 397 }
 398
 399 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 400 {
 401         flash_bank_t *p;
 402         int retval;
 403
 404         if (argc != 1)
 405         {
 406                 return ERROR_COMMAND_SYNTAX_ERROR;
 407         }
 408
 409         p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
 410         if (p)
 411         {
 412                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 413                 {
 414                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
 415                 }
 416                 else if (retval == ERROR_FLASH_BANK_INVALID)
 417                 {
 418                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
 419                                                   args[0], p->base);
 420                 }
 421                 else
 422                 {
 423                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
 424                                                   args[0], p->base);
 425                 }
 426         }
 427         else
 428         {
 429                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 430         }
 431
 432         return ERROR_OK;
 433 }
 434
 435 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 436 {
 437         flash_bank_t *p;
 438         int retval;
 439
 440         if (argc != 1)
 441         {
 442                 return ERROR_COMMAND_SYNTAX_ERROR;
 443         }
 444
 445         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 446         if (p)
 447         {
 448                 int j;
 449                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 450                 {
 451                         command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
 452                 }
 453                 else
 454                 {
 455                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
 456                                 args[0], p->base);
 457                 }
 458
 459                 for (j = 0; j < p->num_sectors; j++)
 460                 {
 461                         char *erase_state;
 462
 463                         if (p->sectors[j].is_erased == 0)
 464                                 erase_state = "not erased";
 465                         else if (p->sectors[j].is_erased == 1)
 466                                 erase_state = "erased";
 467                         else
 468                                 erase_state = "erase state unknown";
 469
 470                         command_print(cmd_ctx, "\t#%3i: 0x%8.8x (0x%x %ikB) %s",
 471                                                 j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 472                                                 erase_state);
 473                 }
 474
 475         }
 476
 477         return ERROR_OK;
 478 }
 479
 480 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 481 {
 482         flash_bank_t *p;
 483         int retval;
 484         int address;
 485         int length;
 486         duration_t duration;
 487         char *duration_text;
 488
 489         target_t *target = get_current_target(cmd_ctx);
 490
 491         if (argc != 2)
 492         {
 493                 return ERROR_COMMAND_SYNTAX_ERROR;
 494         }
 495
 496         address = strtoul(args[0], NULL, 0);
 497         length = strtoul(args[1], NULL, 0);
 498         if (length <= 0)
 499         {
 500                 command_print(cmd_ctx, "Length must be >0");
 501                 return ERROR_COMMAND_SYNTAX_ERROR;
 502         }
 503
 504         p = get_flash_bank_by_addr(target, address);
 505         if (p == NULL)
 506         {
 507                 return ERROR_FAIL;
 508         }
 509
 510         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 511         flash_set_dirty();
 512
 513         duration_start_measure(&duration);
 514
 515         if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
 516         {
 517                 if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 518                 {
 519                         return retval;
 520                 }
 521                 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
 522                 free(duration_text);
 523         }
 524
 525         return retval;
 526 }
 527
 528 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 529 {
 530         flash_bank_t *p;
 531         int retval;
 532
 533         if (argc != 1)
 534         {
 535                 return ERROR_COMMAND_SYNTAX_ERROR;
 536         }
 537
 538         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 539         if (p)
 540         {
 541                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 542                 {
 543                         command_print(cmd_ctx, "successfully checked protect state");
 544                 }
 545                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
 546                 {
 547                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
 548                 }
 549                 else
 550                 {
 551                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
 552                 }
 553         }
 554         else
 555         {
 556                 return ERROR_COMMAND_SYNTAX_ERROR;
 557         }
 558
 559         return ERROR_OK;
 560 }
 561
 562 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 563 {
 564         if (argc > 2)
 565         {
 566                 int first = strtoul(args[1], NULL, 0);
 567                 int last = strtoul(args[2], NULL, 0);
 568                 int retval;
 569                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 570                 duration_t duration;
 571                 char *duration_text;
 572
 573                 duration_start_measure(&duration);
 574
 575                 if (!p)
 576                 {
 577                         return ERROR_COMMAND_SYNTAX_ERROR;
 578                 }
 579
 580                 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
 581                 {
 582                         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 583                         {
 584                                 return retval;
 585                         }
 586
 587                         command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
 588                         free(duration_text);
 589                 }
 590         }
 591         else
 592         {
 593                 return ERROR_COMMAND_SYNTAX_ERROR;
 594         }
 595
 596         return ERROR_OK;
 597 }
 598
 599 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 600 {
 601         if (argc > 3)
 602         {
 603                 int first = strtoul(args[1], NULL, 0);
 604                 int last = strtoul(args[2], NULL, 0);
 605                 int set;
 606                 int retval;
 607                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 608                 if (!p)
 609                 {
 610                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 611                         return ERROR_OK;
 612                 }
 613
 614                 if (strcmp(args[3], "on") == 0)
 615                         set = 1;
 616                 else if (strcmp(args[3], "off") == 0)
 617                         set = 0;
 618                 else
 619                 {
 620                         return ERROR_COMMAND_SYNTAX_ERROR;
 621                 }
 622
 623                 retval = flash_driver_protect(p, set, first, last);
 624                 if (retval == ERROR_OK)
 625                 {
 626                         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));
 627                 }
 628         }
 629         else
 630         {
 631                 return ERROR_COMMAND_SYNTAX_ERROR;
 632
 633         }
 634
 635         return ERROR_OK;
 636 }
 637
 638 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 639 {
 640         target_t *target = get_current_target(cmd_ctx);
 641
 642         image_t image;
 643         u32 written;
 644
 645         duration_t duration;
 646         char *duration_text;
 647
 648         int retval, retvaltemp;
 649
 650         if (argc < 1)
 651         {
 652                 return ERROR_COMMAND_SYNTAX_ERROR;
 653         }
 654
 655         /* flash auto-erase is disabled by default*/
 656         int auto_erase = 0;
 657
 658         if (strcmp(args[0], "erase")==0)
 659         {
 660                 auto_erase = 1;
 661                 args++;
 662                 argc--;
 663                 command_print(cmd_ctx, "auto erase enabled");
 664         }
 665
 666
 667         if (argc < 1)
 668         {
 669                 return ERROR_COMMAND_SYNTAX_ERROR;
 670         }
 671
 672         if (!target)
 673         {
 674                 LOG_ERROR("no target selected");
 675                 return ERROR_FAIL;
 676         }
 677
 678         duration_start_measure(&duration);
 679
 680         if (argc >= 2)
 681         {
 682                 image.base_address_set = 1;
 683                 image.base_address = strtoul(args[1], NULL, 0);
 684         }
 685         else
 686         {
 687                 image.base_address_set = 0;
 688                 image.base_address = 0x0;
 689         }
 690
 691         image.start_address_set = 0;
 692
 693         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
 694         if (retval != ERROR_OK)
 695         {
 696                 return retval;
 697         }
 698
 699         retval = flash_write(target, &image, &written, auto_erase);
 700         if (retval != ERROR_OK)
 701         {
 702                 image_close(&image);
 703                 return retval;
 704         }
 705
 706         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 707         {
 708                 image_close(&image);
 709                 return retvaltemp;
 710         }
 711         if (retval == ERROR_OK)
 712         {
 713                 command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
 714                                 written, args[0], duration_text,
 715                                 (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 716         }
 717         free(duration_text);
 718
 719         image_close(&image);
 720
 721         return retval;
 722 }
 723
 724 int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 725 {
 726         int err = ERROR_OK, retval;
 727         u32 address;
 728         u32 pattern;
 729         u32 count;
 730         u8 chunk[1024];
 731         u32 wrote = 0;
 732         int chunk_count;
 733         char *duration_text;
 734         duration_t duration;
 735         target_t *target = get_current_target(cmd_ctx);
 736         u32 i;
 737         int wordsize;
 738
 739         if (argc != 3)
 740         {
 741                 return ERROR_COMMAND_SYNTAX_ERROR;
 742         }
 743
 744         address = strtoul(args[0], NULL, 0);
 745         pattern = strtoul(args[1], NULL, 0);
 746         count   = strtoul(args[2], NULL, 0);
 747
 748         if(count == 0)
 749                 return ERROR_OK;
 750
 751
 752         switch(cmd[4])
 753         {
 754         case 'w':
 755                 wordsize=4;
 756                 break;
 757         case 'h':
 758                 wordsize=2;
 759                 break;
 760         case 'b':
 761                 wordsize=1;
 762                 break;
 763         default:
 764                 return ERROR_COMMAND_SYNTAX_ERROR;
 765         }
 766
 767         chunk_count = MIN(count, (1024 / wordsize));
 768         switch(wordsize)
 769         {
 770         case 4:
 771                 for(i = 0; i < chunk_count; i++)
 772                 {
 773                         target_buffer_set_u32(target, chunk + i * wordsize, pattern);
 774                 }
 775                 break;
 776         case 2:
 777                 for(i = 0; i < chunk_count; i++)
 778                 {
 779                         target_buffer_set_u16(target, chunk + i * wordsize, pattern);
 780                 }
 781                 break;
 782         case 1:
 783                 memset(chunk, pattern, chunk_count);
 784                 break;
 785         default:
 786                 LOG_ERROR("BUG: can't happen");
 787                 exit(-1);
 788         }
 789
 790         duration_start_measure(&duration);
 791
 792         for (wrote=0; wrote<(count*wordsize); wrote+=sizeof(chunk))
 793         {
 794                 int cur_size = MIN( (count*wordsize - wrote) , 1024 );
 795                 if (err == ERROR_OK)
 796                 {
 797                         flash_bank_t *bank;
 798                         bank = get_flash_bank_by_addr(target, address);
 799                         if(bank == NULL)
 800                         {
 801                                 err = ERROR_FAIL;
 802                                 break;
 803                         }
 804                         err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
 805                         wrote += cur_size;
 806                 }
 807                 if (err!=ERROR_OK)
 808                         break;
 809         }
 810
 811         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 812         {
 813                 return retval;
 814         }
 815
 816
 817         if(err == ERROR_OK)
 818         {
 819                 float speed;
 820                 speed=wrote / 1024.0;
 821                 speed/=((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0));
 822                 command_print(cmd_ctx, "wrote %d bytes to 0x%8.8x in %s (%f kb/s)",
 823                         count*wordsize, address, duration_text,
 824                         speed);
 825         }
 826         free(duration_text);
 827         return ERROR_OK;
 828 }
 829
 830 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 831 {
 832         u32 offset;
 833         u8 *buffer;
 834         u32 buf_cnt;
 835
 836         fileio_t fileio;
 837
 838         duration_t duration;
 839         char *duration_text;
 840
 841         int retval, retvaltemp;
 842         flash_bank_t *p;
 843
 844         if (argc != 3)
 845         {
 846                 return ERROR_COMMAND_SYNTAX_ERROR;
 847         }
 848
 849         duration_start_measure(&duration);
 850
 851         offset = strtoul(args[2], NULL, 0);
 852         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 853         if (!p)
 854         {
 855                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 856                 return ERROR_OK;
 857         }
 858
 859         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 860         {
 861                 return ERROR_OK;
 862         }
 863
 864         buffer = malloc(fileio.size);
 865         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 866         {
 867                 free(buffer);
 868                 fileio_close(&fileio);
 869                 return ERROR_OK;
 870         }
 871
 872         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 873
 874         free(buffer);
 875         buffer = NULL;
 876
 877         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 878         {
 879                 fileio_close(&fileio);
 880                 return retvaltemp;
 881         }
 882         if (retval!=ERROR_OK)
 883         {
 884         command_print(cmd_ctx, "wrote  %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
 885                 fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
 886                 (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 887         }
 888         free(duration_text);
 889
 890         fileio_close(&fileio);
 891
 892         return retval;
 893 }
 894
 895 void flash_set_dirty(void)
 896 {
 897         flash_bank_t *c;
 898         int i;
 899
 900         /* set all flash to require erasing */
 901         for (c = flash_banks; c; c = c->next)
 902         {
 903                 for (i = 0; i < c->num_sectors; i++)
 904                 {
 905                         c->sectors[i].is_erased = 0;
 906                 }
 907         }
 908 }
 909
 910 /* lookup flash bank by address */
 911 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
 912 {
 913         flash_bank_t *c;
 914
 915         /* cycle through bank list */
 916         for (c = flash_banks; c; c = c->next)
 917         {
 918                 int retval;
 919                 retval = c->driver->auto_probe(c);
 920
 921                 if (retval != ERROR_OK)
 922                 {
 923                         LOG_ERROR("auto_probe failed %d\n", retval);
 924                         return NULL;
 925                 }
 926                 /* check whether address belongs to this flash bank */
 927                 if ((addr >= c->base) && (addr <= c->base + (c->size - 1)) && target == c->target)
 928                         return c;
 929         }
 930         LOG_ERROR("No flash at address 0x%08x\n", addr);
 931         return NULL;
 932 }
 933
 934 /* erase given flash region, selects proper bank according to target and address */
 935 int flash_erase_address_range(target_t *target, u32 addr, u32 length)
 936 {
 937         flash_bank_t *c;
 938         int first = -1;
 939         int last = -1;
 940         int i;
 941
 942         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
 943                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
 944
 945         if (c->size == 0 || c->num_sectors == 0)
 946         {
 947                 LOG_ERROR("Bank is invalid");
 948                 return ERROR_FLASH_BANK_INVALID;
 949         }
 950
 951         if (length == 0)
 952         {
 953                 /* special case, erase whole bank when length is zero */
 954                 if (addr != c->base)
 955                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 956
 957                 return flash_driver_erase(c, 0, c->num_sectors - 1);
 958         }
 959
 960         /* check whether it fits */
 961         if (addr + length > c->base + c->size)
 962                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 963
 964         addr -= c->base;
 965
 966         for (i = 0; i < c->num_sectors; i++)
 967         {
 968                 /* check whether sector overlaps with the given range and is not yet erased */
 969                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
 970                         /* if first is not set yet then this is the first sector */
 971                         if (first == -1)
 972                                 first = i;
 973                         last = i; /* and it is the last one so far in any case */
 974                 }
 975         }
 976
 977         if( first == -1 || last == -1 )
 978                 return ERROR_OK;
 979
 980         return flash_driver_erase(c, first, last);
 981 }
 982
 983 /* write (optional verify) an image to flash memory of the given target */
 984 int flash_write(target_t *target, image_t *image, u32 *written, int erase)
 985 {
 986         int retval=ERROR_OK;
 987
 988         int section;
 989         u32 section_offset;
 990         flash_bank_t *c;
 991         int *padding;
 992
 993         section = 0;
 994         section_offset = 0;
 995
 996         if (written)
 997                 *written = 0;
 998
 999         if (erase)
1000         {
1001                 /* assume all sectors need erasing - stops any problems
1002                  * when flash_write is called multiple times */
1003
1004                 flash_set_dirty();
1005         }
1006
1007         /* allocate padding array */
1008         padding = malloc(image->num_sections * sizeof(padding));
1009
1010         /* loop until we reach end of the image */
1011         while (section < image->num_sections)
1012         {
1013                 u32 buffer_size;
1014                 u8 *buffer;
1015                 int section_first;
1016                 int section_last;
1017                 u32 run_address = image->sections[section].base_address + section_offset;
1018                 u32 run_size = image->sections[section].size - section_offset;
1019                 int pad_bytes = 0;
1020
1021                 if (image->sections[section].size ==  0)
1022                 {
1023                         LOG_WARNING("empty section %d", section);
1024                         section++;
1025                         section_offset = 0;
1026                         continue;
1027                 }
1028
1029                 /* find the corresponding flash bank */
1030                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
1031                 {
1032                         section++; /* and skip it */
1033                         section_offset = 0;
1034                         continue;
1035                 }
1036
1037                 /* collect consecutive sections which fall into the same bank */
1038                 section_first = section;
1039                 section_last = section;
1040                 padding[section] = 0;
1041                 while ((run_address + run_size < c->base + c->size)
1042                                 && (section_last + 1 < image->num_sections))
1043                 {
1044                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
1045                         {
1046                                 LOG_DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
1047                                 break;
1048                         }
1049                         /* if we have multiple sections within our image, flash programming could fail due to alignment issues
1050                          * attempt to rebuild a consecutive buffer for the flash loader */
1051                         pad_bytes = (image->sections[section_last + 1].base_address) - (run_address + run_size);
1052                         if ((run_address + run_size + pad_bytes) > (c->base + c->size))
1053                                 break;
1054                         padding[section_last] = pad_bytes;
1055                         run_size += image->sections[++section_last].size;
1056                         run_size += pad_bytes;
1057                         padding[section_last] = 0;
1058
1059                         LOG_INFO("Padding image section %d with %d bytes", section_last-1, pad_bytes );
1060                 }
1061
1062                 /* fit the run into bank constraints */
1063                 if (run_address + run_size > c->base + c->size)
1064                         run_size = c->base + c->size - run_address;
1065
1066                 /* allocate buffer */
1067                 buffer = malloc(run_size);
1068                 buffer_size = 0;
1069
1070                 /* read sections to the buffer */
1071                 while (buffer_size < run_size)
1072                 {
1073                         u32 size_read;
1074
1075                         size_read = run_size - buffer_size;
1076                         if (size_read > image->sections[section].size - section_offset)
1077                             size_read = image->sections[section].size - section_offset;
1078
1079                         if ((retval = image_read_section(image, section, section_offset,
1080                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
1081                         {
1082                                 free(buffer);
1083                                 free(padding);
1084                                 return retval;
1085                         }
1086
1087                         /* see if we need to pad the section */
1088                         while (padding[section]--)
1089                                  (buffer+buffer_size)[size_read++] = 0xff;
1090
1091                         buffer_size += size_read;
1092                         section_offset += size_read;
1093
1094                         if (section_offset >= image->sections[section].size)
1095                         {
1096                                 section++;
1097                                 section_offset = 0;
1098                         }
1099                 }
1100
1101                 retval = ERROR_OK;
1102
1103                 if (erase)
1104                 {
1105                         /* calculate and erase sectors */
1106                         retval = flash_erase_address_range( target, run_address, run_size );
1107                 }
1108
1109                 if (retval == ERROR_OK)
1110                 {
1111                         /* write flash sectors */
1112                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
1113                 }
1114
1115                 free(buffer);
1116
1117                 if (retval != ERROR_OK)
1118                 {
1119                         free(padding);
1120                         return retval; /* abort operation */
1121                 }
1122
1123                 if (written != NULL)
1124                         *written += run_size; /* add run size to total written counter */
1125         }
1126
1127         free(padding);
1128
1129         return retval;
1130 }
1131
1132 int default_flash_mem_blank_check(struct flash_bank_s *bank)
1133 {
1134         target_t *target = bank->target;
1135         u8 buffer[1024];
1136         int buffer_size = sizeof(buffer);
1137         int i;
1138         int nBytes;
1139
1140         if (bank->target->state != TARGET_HALTED)
1141         {
1142                 LOG_ERROR("Target not halted");
1143                 return ERROR_TARGET_NOT_HALTED;
1144         }
1145
1146         for (i = 0; i < bank->num_sectors; i++)
1147         {
1148                 int j;
1149                 bank->sectors[i].is_erased = 1;
1150
1151                 for (j = 0; j < bank->sectors[i].size; j += buffer_size)
1152                 {
1153                         int chunk;
1154                         int retval;
1155                         chunk = buffer_size;
1156                         if (chunk > (j - bank->sectors[i].size))
1157                         {
1158                                 chunk = (j - bank->sectors[i].size);
1159                         }
1160
1161                         retval = target->type->read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
1162                         if (retval != ERROR_OK)
1163                                 return retval;
1164
1165                         for (nBytes = 0; nBytes < chunk; nBytes++)
1166                         {
1167                                 if (buffer[nBytes] != 0xFF)
1168                                 {
1169                                         bank->sectors[i].is_erased = 0;
1170                                         break;
1171                                 }
1172                         }
1173                 }
1174         }
1175
1176         return ERROR_OK;
1177 }
1178
1179 int default_flash_blank_check(struct flash_bank_s *bank)
1180 {
1181         target_t *target = bank->target;
1182         int i;
1183         int retval;
1184         int fast_check = 0;
1185         int blank;
1186
1187         if (bank->target->state != TARGET_HALTED)
1188         {
1189                 LOG_ERROR("Target not halted");
1190                 return ERROR_TARGET_NOT_HALTED;
1191         }
1192
1193         for (i = 0; i < bank->num_sectors; i++)
1194         {
1195                 u32 address = bank->base + bank->sectors[i].offset;
1196                 u32 size = bank->sectors[i].size;
1197
1198                 if ((retval = target_blank_check_memory(target, address, size, &blank)) != ERROR_OK)
1199                 {
1200                         fast_check = 0;
1201                         break;
1202                 }
1203                 if (blank == 0xFF)
1204                         bank->sectors[i].is_erased = 1;
1205                 else
1206                         bank->sectors[i].is_erased = 0;
1207                 fast_check = 1;
1208         }
1209
1210         if (!fast_check)
1211         {
1212                 LOG_USER("Running slow fallback erase check - add working memory");
1213                 return default_flash_mem_blank_check(bank);
1214         }
1215
1216         return ERROR_OK;
1217 }