git.gag.com Git - fw/openocd/blob - src/flash/lpc2000.c

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "lpc2000.h"
  25
  26 #include "flash.h"
  27 #include "target.h"
  28 #include "log.h"
  29 #include "armv4_5.h"
  30 #include "algorithm.h"
  31 #include "binarybuffer.h"
  32
  33 #include <stdlib.h>
  34 #include <string.h>
  35
  36 /* flash programming support for Philips LPC2xxx devices
  37  * currently supported devices:
  38  * variant 1 (lpc2000_v1):
  39  * - 2104|5|6
  40  * - 2114|9
  41  * - 2124|9
  42  * - 2194
  43  * - 2212|4
  44  * - 2292|4
  45  *
  46  * variant 2 (lpc2000_v2):
  47  * - 213x
  48  * - 214x
  49  * - 2101|2|3
  50  * - 2364|6|8
  51  * - 2378
  52  */
  53
  54 int lpc2000_register_commands(struct command_context_s *cmd_ctx);
  55 int lpc2000_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
  56 int lpc2000_erase(struct flash_bank_s *bank, int first, int last);
  57 int lpc2000_protect(struct flash_bank_s *bank, int set, int first, int last);
  58 int lpc2000_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
  59 int lpc2000_probe(struct flash_bank_s *bank);
  60 int lpc2000_erase_check(struct flash_bank_s *bank);
  61 int lpc2000_protect_check(struct flash_bank_s *bank);
  62 int lpc2000_info(struct flash_bank_s *bank, char *buf, int buf_size);
  63
  64 int lpc2000_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65
  66 flash_driver_t lpc2000_flash =
  67 {
  68         .name = "lpc2000",
  69         .register_commands = lpc2000_register_commands,
  70         .flash_bank_command = lpc2000_flash_bank_command,
  71         .erase = lpc2000_erase,
  72         .protect = lpc2000_protect,
  73         .write = lpc2000_write,
  74         .probe = lpc2000_probe,
  75         .auto_probe = lpc2000_probe,
  76         .erase_check = lpc2000_erase_check,
  77         .protect_check = lpc2000_protect_check,
  78         .info = lpc2000_info
  79 };
  80
  81 int lpc2000_register_commands(struct command_context_s *cmd_ctx)
  82 {
  83         command_t *lpc2000_cmd = register_command(cmd_ctx, NULL, "lpc2000", NULL, COMMAND_ANY, NULL);
  84
  85         register_command(cmd_ctx, lpc2000_cmd, "part_id", lpc2000_handle_part_id_command, COMMAND_EXEC,
  86                                          "print part id of lpc2000 flash bank <num>");
  87
  88         return ERROR_OK;
  89 }
  90
  91 int lpc2000_build_sector_list(struct flash_bank_s *bank)
  92 {
  93         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
  94
  95         /* default to a 4096 write buffer */
  96         lpc2000_info->cmd51_max_buffer = 4096;
  97
  98         if (lpc2000_info->variant == 1)
  99         {
 100                 int i = 0;
 101                 u32 offset = 0;
 102
 103                 /* variant 1 has different layout for 128kb and 256kb flashes */
 104                 if (bank->size == 128 * 1024)
 105                 {
 106                         bank->num_sectors = 16;
 107                         bank->sectors = malloc(sizeof(flash_sector_t) * 16);
 108                         for (i = 0; i < 16; i++)
 109                         {
 110                                 bank->sectors[i].offset = offset;
 111                                 bank->sectors[i].size = 8 * 1024;
 112                                 offset += bank->sectors[i].size;
 113                                 bank->sectors[i].is_erased = -1;
 114                                 bank->sectors[i].is_protected = 1;
 115                         }
 116                 }
 117                 else if (bank->size == 256 * 1024)
 118                 {
 119                         bank->num_sectors = 18;
 120                         bank->sectors = malloc(sizeof(flash_sector_t) * 18);
 121
 122                         for (i = 0; i < 8; i++)
 123                         {
 124                                 bank->sectors[i].offset = offset;
 125                                 bank->sectors[i].size = 8 * 1024;
 126                                 offset += bank->sectors[i].size;
 127                                 bank->sectors[i].is_erased = -1;
 128                                 bank->sectors[i].is_protected = 1;
 129                         }
 130                         for (i = 8; i < 10; i++)
 131                         {
 132                                 bank->sectors[i].offset = offset;
 133                                 bank->sectors[i].size = 64 * 1024;
 134                                 offset += bank->sectors[i].size;
 135                                 bank->sectors[i].is_erased = -1;
 136                                 bank->sectors[i].is_protected = 1;
 137                         }
 138                         for (i = 10; i < 18; i++)
 139                         {
 140                                 bank->sectors[i].offset = offset;
 141                                 bank->sectors[i].size = 8 * 1024;
 142                                 offset += bank->sectors[i].size;
 143                                 bank->sectors[i].is_erased = -1;
 144                                 bank->sectors[i].is_protected = 1;
 145                         }
 146                 }
 147                 else
 148                 {
 149                         LOG_ERROR("BUG: unknown bank->size encountered");
 150                         exit(-1);
 151                 }
 152         }
 153         else if (lpc2000_info->variant == 2)
 154         {
 155                 int num_sectors;
 156                 int i;
 157                 u32 offset = 0;
 158
 159                 /* variant 2 has a uniform layout, only number of sectors differs */
 160                 switch (bank->size)
 161                 {
 162                         case 4 * 1024:
 163                                 lpc2000_info->cmd51_max_buffer = 1024;
 164                                 num_sectors = 1;
 165                                 break;
 166                         case 8 * 1024:
 167                                 lpc2000_info->cmd51_max_buffer = 1024;
 168                                 num_sectors = 2;
 169                                 break;
 170                         case 16 * 1024:
 171                                 num_sectors = 4;
 172                                 break;
 173                         case 32 * 1024:
 174                                 num_sectors = 8;
 175                                 break;
 176                         case 64 * 1024:
 177                                 num_sectors = 9;
 178                                 break;
 179                         case 128 * 1024:
 180                                 num_sectors = 11;
 181                                 break;
 182                         case 256 * 1024:
 183                                 num_sectors = 15;
 184                                 break;
 185                         case 512 * 1024:
 186                         case 500 * 1024:
 187                                 num_sectors = 27;
 188                                 break;
 189                         default:
 190                                 LOG_ERROR("BUG: unknown bank->size encountered");
 191                                 exit(-1);
 192                                 break;
 193                 }
 194
 195                 bank->num_sectors = num_sectors;
 196                 bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
 197
 198                 for (i = 0; i < num_sectors; i++)
 199                 {
 200                         if ((i >= 0) && (i < 8))
 201                         {
 202                                 bank->sectors[i].offset = offset;
 203                                 bank->sectors[i].size = 4 * 1024;
 204                                 offset += bank->sectors[i].size;
 205                                 bank->sectors[i].is_erased = -1;
 206                                 bank->sectors[i].is_protected = 1;
 207                         }
 208                         if ((i >= 8) && (i < 22))
 209                         {
 210                                 bank->sectors[i].offset = offset;
 211                                 bank->sectors[i].size = 32 * 1024;
 212                                 offset += bank->sectors[i].size;
 213                                 bank->sectors[i].is_erased = -1;
 214                                 bank->sectors[i].is_protected = 1;
 215                         }
 216                         if ((i >= 22) && (i < 27))
 217                         {
 218                                 bank->sectors[i].offset = offset;
 219                                 bank->sectors[i].size = 4 * 1024;
 220                                 offset += bank->sectors[i].size;
 221                                 bank->sectors[i].is_erased = -1;
 222                                 bank->sectors[i].is_protected = 1;
 223                         }
 224                 }
 225         }
 226         else
 227         {
 228                 LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
 229                 exit(-1);
 230         }
 231
 232         return ERROR_OK;
 233 }
 234
 235 /* call LPC2000 IAP function
 236  * uses 172 bytes working area
 237  * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
 238  * 0x8 to 0x1f: command parameter table
 239  * 0x20 to 0x2b: command result table
 240  * 0x2c to 0xac: stack (only 128b needed)
 241  */
 242 int lpc2000_iap_call(flash_bank_t *bank, int code, u32 param_table[5], u32 result_table[2])
 243 {
 244         int retval;
 245         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 246         target_t *target = bank->target;
 247         mem_param_t mem_params[2];
 248         reg_param_t reg_params[5];
 249         armv4_5_algorithm_t armv4_5_info;
 250         u32 status_code;
 251
 252         /* regrab previously allocated working_area, or allocate a new one */
 253         if (!lpc2000_info->iap_working_area)
 254         {
 255                 u8 jump_gate[8];
 256
 257                 /* make sure we have a working area */
 258                 if (target_alloc_working_area(target, 172, &lpc2000_info->iap_working_area) != ERROR_OK)
 259                 {
 260                         LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
 261                         return ERROR_FLASH_OPERATION_FAILED;
 262                 }
 263
 264                 /* write IAP code to working area */
 265                 target_buffer_set_u32(target, jump_gate, ARMV4_5_BX(12));
 266                 target_buffer_set_u32(target, jump_gate + 4, ARMV4_5_B(0xfffffe, 0));
 267                 if((retval = target->type->write_memory(target, lpc2000_info->iap_working_area->address, 4, 2, jump_gate)) != ERROR_OK)
 268                 {
 269                         return retval;
 270                 }
 271         }
 272
 273         armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
 274         armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
 275         armv4_5_info.core_state = ARMV4_5_STATE_ARM;
 276
 277         /* command parameter table */
 278         init_mem_param(&mem_params[0], lpc2000_info->iap_working_area->address + 8, 4 * 6, PARAM_OUT);
 279         target_buffer_set_u32(target, mem_params[0].value, code);
 280         target_buffer_set_u32(target, mem_params[0].value + 0x4, param_table[0]);
 281         target_buffer_set_u32(target, mem_params[0].value + 0x8, param_table[1]);
 282         target_buffer_set_u32(target, mem_params[0].value + 0xc, param_table[2]);
 283         target_buffer_set_u32(target, mem_params[0].value + 0x10, param_table[3]);
 284         target_buffer_set_u32(target, mem_params[0].value + 0x14, param_table[4]);
 285
 286         init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
 287         buf_set_u32(reg_params[0].value, 0, 32, lpc2000_info->iap_working_area->address + 0x8);
 288
 289         /* command result table */
 290         init_mem_param(&mem_params[1], lpc2000_info->iap_working_area->address + 0x20, 4 * 3, PARAM_IN);
 291
 292         init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
 293         buf_set_u32(reg_params[1].value, 0, 32, lpc2000_info->iap_working_area->address + 0x20);
 294
 295         /* IAP entry point */
 296         init_reg_param(&reg_params[2], "r12", 32, PARAM_OUT);
 297         buf_set_u32(reg_params[2].value, 0, 32, 0x7ffffff1);
 298
 299         /* IAP stack */
 300         init_reg_param(&reg_params[3], "r13_svc", 32, PARAM_OUT);
 301         buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xac);
 302
 303         /* return address */
 304         init_reg_param(&reg_params[4], "lr_svc", 32, PARAM_OUT);
 305         buf_set_u32(reg_params[4].value, 0, 32, lpc2000_info->iap_working_area->address + 0x4);
 306
 307         target->type->run_algorithm(target, 2, mem_params, 5, reg_params, lpc2000_info->iap_working_area->address, lpc2000_info->iap_working_area->address + 0x4, 10000, &armv4_5_info);
 308
 309         status_code = buf_get_u32(mem_params[1].value, 0, 32);
 310         result_table[0] = target_buffer_get_u32(target, mem_params[1].value);
 311         result_table[1] = target_buffer_get_u32(target, mem_params[1].value + 4);
 312
 313         destroy_mem_param(&mem_params[0]);
 314         destroy_mem_param(&mem_params[1]);
 315
 316         destroy_reg_param(&reg_params[0]);
 317         destroy_reg_param(&reg_params[1]);
 318         destroy_reg_param(&reg_params[2]);
 319         destroy_reg_param(&reg_params[3]);
 320         destroy_reg_param(&reg_params[4]);
 321
 322         return status_code;
 323 }
 324
 325 int lpc2000_iap_blank_check(struct flash_bank_s *bank, int first, int last)
 326 {
 327         u32 param_table[5];
 328         u32 result_table[2];
 329         int status_code;
 330         int i;
 331
 332         if ((first < 0) || (last > bank->num_sectors))
 333                 return ERROR_FLASH_SECTOR_INVALID;
 334
 335         for (i = first; i <= last; i++)
 336         {
 337                 /* check single sector */
 338                 param_table[0] = param_table[1] = i;
 339                 status_code = lpc2000_iap_call(bank, 53, param_table, result_table);
 340
 341                 switch (status_code)
 342                 {
 343                         case ERROR_FLASH_OPERATION_FAILED:
 344                                 return ERROR_FLASH_OPERATION_FAILED;
 345                         case LPC2000_CMD_SUCCESS:
 346                                 bank->sectors[i].is_erased = 1;
 347                                 break;
 348                         case LPC2000_SECTOR_NOT_BLANK:
 349                                 bank->sectors[i].is_erased = 0;
 350                                 break;
 351                         case LPC2000_INVALID_SECTOR:
 352                                 bank->sectors[i].is_erased = 0;
 353                                 break;
 354                         case LPC2000_BUSY:
 355                                 return ERROR_FLASH_BUSY;
 356                                 break;
 357                         default:
 358                                 LOG_ERROR("BUG: unknown LPC2000 status code");
 359                                 exit(-1);
 360                 }
 361         }
 362
 363         return ERROR_OK;
 364 }
 365
 366 /* flash bank lpc2000 <base> <size> 0 0 <target#> <lpc_variant> <cclk> [calc_checksum]
 367  */
 368 int lpc2000_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
 369 {
 370         lpc2000_flash_bank_t *lpc2000_info;
 371
 372         if (argc < 8)
 373         {
 374                 LOG_WARNING("incomplete flash_bank lpc2000 configuration");
 375                 return ERROR_FLASH_BANK_INVALID;
 376         }
 377
 378         lpc2000_info = malloc(sizeof(lpc2000_flash_bank_t));
 379         bank->driver_priv = lpc2000_info;
 380
 381         if (strcmp(args[6], "lpc2000_v1") == 0)
 382         {
 383                 lpc2000_info->variant = 1;
 384                 lpc2000_info->cmd51_dst_boundary = 512;
 385                 lpc2000_info->cmd51_can_256b = 0;
 386                 lpc2000_info->cmd51_can_8192b = 1;
 387         }
 388         else if (strcmp(args[6], "lpc2000_v2") == 0)
 389         {
 390                 lpc2000_info->variant = 2;
 391                 lpc2000_info->cmd51_dst_boundary = 256;
 392                 lpc2000_info->cmd51_can_256b = 1;
 393                 lpc2000_info->cmd51_can_8192b = 0;
 394         }
 395         else
 396         {
 397                 LOG_ERROR("unknown LPC2000 variant");
 398                 free(lpc2000_info);
 399                 return ERROR_FLASH_BANK_INVALID;
 400         }
 401
 402         lpc2000_info->iap_working_area = NULL;
 403         lpc2000_info->cclk = strtoul(args[7], NULL, 0);
 404         lpc2000_info->calc_checksum = 0;
 405         lpc2000_build_sector_list(bank);
 406
 407         if (argc >= 9)
 408         {
 409                 if (strcmp(args[8], "calc_checksum") == 0)
 410                         lpc2000_info->calc_checksum = 1;
 411         }
 412
 413         return ERROR_OK;
 414 }
 415
 416 int lpc2000_erase(struct flash_bank_s *bank, int first, int last)
 417 {
 418         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 419         u32 param_table[5];
 420         u32 result_table[2];
 421         int status_code;
 422
 423         if (bank->target->state != TARGET_HALTED)
 424         {
 425                 LOG_ERROR("Target not halted");
 426                 return ERROR_TARGET_NOT_HALTED;
 427         }
 428
 429         param_table[0] = first;
 430         param_table[1] = last;
 431         param_table[2] = lpc2000_info->cclk;
 432
 433         /* Prepare sectors */
 434         status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
 435         switch (status_code)
 436         {
 437                 case ERROR_FLASH_OPERATION_FAILED:
 438                         return ERROR_FLASH_OPERATION_FAILED;
 439                 case LPC2000_CMD_SUCCESS:
 440                         break;
 441                 case LPC2000_INVALID_SECTOR:
 442                         return ERROR_FLASH_SECTOR_INVALID;
 443                         break;
 444                 default:
 445                         LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
 446                         return ERROR_FLASH_OPERATION_FAILED;
 447         }
 448
 449         /* Erase sectors */
 450         status_code = lpc2000_iap_call(bank, 52, param_table, result_table);
 451         switch (status_code)
 452         {
 453                 case ERROR_FLASH_OPERATION_FAILED:
 454                         return ERROR_FLASH_OPERATION_FAILED;
 455                 case LPC2000_CMD_SUCCESS:
 456                         break;
 457                 case LPC2000_INVALID_SECTOR:
 458                         return ERROR_FLASH_SECTOR_INVALID;
 459                         break;
 460                 default:
 461                         LOG_WARNING("lpc2000 erase sectors returned %i", status_code);
 462                         return ERROR_FLASH_OPERATION_FAILED;
 463         }
 464
 465         return ERROR_OK;
 466 }
 467
 468 int lpc2000_protect(struct flash_bank_s *bank, int set, int first, int last)
 469 {
 470         /* can't protect/unprotect on the lpc2000 */
 471         return ERROR_OK;
 472 }
 473
 474 int lpc2000_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
 475 {
 476         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 477         target_t *target = bank->target;
 478         u32 dst_min_alignment;
 479         u32 bytes_remaining = count;
 480         u32 bytes_written = 0;
 481         int first_sector = 0;
 482         int last_sector = 0;
 483         u32 param_table[5];
 484         u32 result_table[2];
 485         int status_code;
 486         int i;
 487         working_area_t *download_area;
 488         int retval = ERROR_OK;
 489
 490         if (bank->target->state != TARGET_HALTED)
 491         {
 492                 LOG_ERROR("Target not halted");
 493                 return ERROR_TARGET_NOT_HALTED;
 494         }
 495
 496         if (offset + count > bank->size)
 497                 return ERROR_FLASH_DST_OUT_OF_BANK;
 498
 499         if (lpc2000_info->cmd51_can_256b)
 500                 dst_min_alignment = 256;
 501         else
 502                 dst_min_alignment = 512;
 503
 504         if (offset % dst_min_alignment)
 505         {
 506                 LOG_WARNING("offset 0x%x breaks required alignment 0x%x", offset, dst_min_alignment);
 507                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 508         }
 509
 510         for (i = 0; i < bank->num_sectors; i++)
 511         {
 512                 if (offset >= bank->sectors[i].offset)
 513                         first_sector = i;
 514                 if (offset + CEIL(count, dst_min_alignment) * dst_min_alignment > bank->sectors[i].offset)
 515                         last_sector = i;
 516         }
 517
 518         LOG_DEBUG("first_sector: %i, last_sector: %i", first_sector, last_sector);
 519
 520         /* check if exception vectors should be flashed */
 521         if ((offset == 0) && (count >= 0x20) && lpc2000_info->calc_checksum)
 522         {
 523                 u32 checksum = 0;
 524                 int i = 0;
 525                 for (i = 0; i < 8; i++)
 526                 {
 527                         LOG_DEBUG("0x%2.2x: 0x%8.8x", i * 4, buf_get_u32(buffer + (i * 4), 0, 32));
 528                         if (i != 5)
 529                                 checksum += buf_get_u32(buffer + (i * 4), 0, 32);
 530                 }
 531                 checksum = 0 - checksum;
 532                 LOG_DEBUG("checksum: 0x%8.8x", checksum);
 533                 buf_set_u32(buffer + 0x14, 0, 32, checksum);
 534         }
 535
 536         /* allocate a working area */
 537         if (target_alloc_working_area(target, lpc2000_info->cmd51_max_buffer, &download_area) != ERROR_OK)
 538         {
 539                 LOG_ERROR("no working area specified, can't write LPC2000 internal flash");
 540                 return ERROR_FLASH_OPERATION_FAILED;
 541         }
 542
 543         while (bytes_remaining > 0)
 544         {
 545                 u32 thisrun_bytes;
 546                 if (bytes_remaining >= lpc2000_info->cmd51_max_buffer)
 547                         thisrun_bytes = lpc2000_info->cmd51_max_buffer;
 548                 else if (bytes_remaining >= 1024)
 549                         thisrun_bytes = 1024;
 550                 else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b))
 551                         thisrun_bytes = 512;
 552                 else
 553                         thisrun_bytes = 256;
 554
 555                 /* Prepare sectors */
 556                 param_table[0] = first_sector;
 557                 param_table[1] = last_sector;
 558                 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
 559                 switch (status_code)
 560                 {
 561                         case ERROR_FLASH_OPERATION_FAILED:
 562                                 retval = ERROR_FLASH_OPERATION_FAILED;
 563                                 break;
 564                         case LPC2000_CMD_SUCCESS:
 565                                 break;
 566                         case LPC2000_INVALID_SECTOR:
 567                                 retval = ERROR_FLASH_SECTOR_INVALID;
 568                                 break;
 569                         default:
 570                                 LOG_WARNING("lpc2000 prepare sectors returned %i", status_code);
 571                                 retval = ERROR_FLASH_OPERATION_FAILED;
 572                                 break;
 573                 }
 574
 575                 /* Exit if error occured */
 576                 if (retval != ERROR_OK)
 577                         break;
 578
 579                 if (bytes_remaining >= thisrun_bytes)
 580                 {
 581                         if ((retval = target_write_buffer(bank->target, download_area->address, thisrun_bytes, buffer + bytes_written)) != ERROR_OK)
 582                         {
 583                                 retval = ERROR_FLASH_OPERATION_FAILED;
 584                                 break;
 585                         }
 586                 }
 587                 else
 588                 {
 589                         u8 *last_buffer = malloc(thisrun_bytes);
 590                         int i;
 591                         memcpy(last_buffer, buffer + bytes_written, bytes_remaining);
 592                         for (i = bytes_remaining; i < thisrun_bytes; i++)
 593                                 last_buffer[i] = 0xff;
 594                         target_write_buffer(bank->target, download_area->address, thisrun_bytes, last_buffer);
 595                         free(last_buffer);
 596                 }
 597
 598                 LOG_DEBUG("writing 0x%x bytes to address 0x%x", thisrun_bytes, bank->base + offset + bytes_written);
 599
 600                 /* Write data */
 601                 param_table[0] = bank->base + offset + bytes_written;
 602                 param_table[1] = download_area->address;
 603                 param_table[2] = thisrun_bytes;
 604                 param_table[3] = lpc2000_info->cclk;
 605                 status_code = lpc2000_iap_call(bank, 51, param_table, result_table);
 606                 switch (status_code)
 607                 {
 608                         case ERROR_FLASH_OPERATION_FAILED:
 609                                 retval = ERROR_FLASH_OPERATION_FAILED;
 610                                 break;
 611                         case LPC2000_CMD_SUCCESS:
 612                                 break;
 613                         case LPC2000_INVALID_SECTOR:
 614                                 retval = ERROR_FLASH_SECTOR_INVALID;
 615                                 break;
 616                         default:
 617                                 LOG_WARNING("lpc2000 returned %i", status_code);
 618                                 retval = ERROR_FLASH_OPERATION_FAILED;
 619                                 break;
 620                 }
 621
 622                 /* Exit if error occured */
 623                 if (retval != ERROR_OK)
 624                         break;
 625
 626                 if (bytes_remaining > thisrun_bytes)
 627                         bytes_remaining -= thisrun_bytes;
 628                 else
 629                         bytes_remaining = 0;
 630                 bytes_written += thisrun_bytes;
 631         }
 632
 633         target_free_working_area(target, download_area);
 634
 635         return retval;
 636 }
 637
 638 int lpc2000_probe(struct flash_bank_s *bank)
 639 {
 640         /* we can't probe on an lpc2000
 641          * if this is an lpc2xxx, it has the configured flash
 642          */
 643         return ERROR_OK;
 644 }
 645
 646 int lpc2000_erase_check(struct flash_bank_s *bank)
 647 {
 648         if (bank->target->state != TARGET_HALTED)
 649         {
 650                 LOG_ERROR("Target not halted");
 651                 return ERROR_TARGET_NOT_HALTED;
 652         }
 653
 654         return lpc2000_iap_blank_check(bank, 0, bank->num_sectors - 1);
 655 }
 656
 657 int lpc2000_protect_check(struct flash_bank_s *bank)
 658 {
 659         /* sectors are always protected */
 660         return ERROR_OK;
 661 }
 662
 663 int lpc2000_info(struct flash_bank_s *bank, char *buf, int buf_size)
 664 {
 665         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 666
 667         snprintf(buf, buf_size, "lpc2000 flash driver variant: %i, clk: %i", lpc2000_info->variant, lpc2000_info->cclk);
 668
 669         return ERROR_OK;
 670 }
 671
 672 int lpc2000_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 673 {
 674         flash_bank_t *bank;
 675         u32 param_table[5];
 676         u32 result_table[2];
 677         int status_code;
 678
 679         if (argc < 1)
 680         {
 681                 return ERROR_COMMAND_SYNTAX_ERROR;
 682         }
 683
 684         bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 685         if (!bank)
 686         {
 687                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 688                 return ERROR_OK;
 689         }
 690
 691         if (bank->target->state != TARGET_HALTED)
 692         {
 693                 LOG_ERROR("Target not halted");
 694                 return ERROR_TARGET_NOT_HALTED;
 695         }
 696
 697         if ((status_code = lpc2000_iap_call(bank, 54, param_table, result_table)) != 0x0)
 698         {
 699                 if (status_code == ERROR_FLASH_OPERATION_FAILED)
 700                 {
 701                         command_print(cmd_ctx, "no sufficient working area specified, can't access LPC2000 IAP interface");
 702                         return ERROR_OK;
 703                 }
 704                 command_print(cmd_ctx, "lpc2000 IAP returned status code %i", status_code);
 705         }
 706         else
 707         {
 708                 command_print(cmd_ctx, "lpc2000 part id: 0x%8.8x", result_table[0]);
 709         }
 710
 711         return ERROR_OK;
 712 }