git.sur5r.net Git - openocd/blob - src/flash/nor/kinetis.c

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Mathias Kuester                                 *
   3  *   kesmtp@freenet.de                                                     *
   4  *                                                                         *
   5  *   Copyright (C) 2011 sleep(5) ltd                                       *
   6  *   tomas@sleepfive.com                                                   *
   7  *                                                                         *
   8  *   Copyright (C) 2012 by Christopher D. Kilgour                          *
   9  *   techie at whiterocker.com                                             *
  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
  27 #ifdef HAVE_CONFIG_H
  28 #include "config.h"
  29 #endif
  30
  31 #include "imp.h"
  32 #include "helper/binarybuffer.h"
  33
  34 /*
  35  * Implementation Notes
  36  *
  37  * The persistent memories in the Kinetis chip families K10 through
  38  * K70 are all manipulated with the Flash Memory Module.  Some
  39  * variants call this module the FTFE, others call it the FTFL.  To
  40  * indicate that both are considered here, we use FTFX.
  41  *
  42  * Within the module, according to the chip variant, the persistent
  43  * memory is divided into what Freescale terms Program Flash, FlexNVM,
  44  * and FlexRAM.  All chip variants have Program Flash.  Some chip
  45  * variants also have FlexNVM and FlexRAM, which always appear
  46  * together.
  47  *
  48  * A given Kinetis chip may have 2 or 4 blocks of flash.  Here we map
  49  * each block to a separate bank.  Each block size varies by chip and
  50  * may be determined by the read-only SIM_FCFG1 register.  The sector
  51  * size within each bank/block varies by the chip granularity as
  52  * described below.
  53  *
  54  * Kinetis offers four different of flash granularities applicable
  55  * across the chip families.  The granularity is apparently reflected
  56  * by at least the reference manual suffix.  For example, for chip
  57  * MK60FN1M0VLQ12, reference manual K60P144M150SF3RM ends in "SF3RM",
  58  * where the "3" indicates there are four flash blocks with 4kiB
  59  * sectors.  All possible granularities are indicated below.
  60  *
  61  * The first half of the flash (1 or 2 blocks, depending on the
  62  * granularity) is always Program Flash and always starts at address
  63  * 0x00000000.  The "PFLSH" flag, bit 23 of the read-only SIM_FCFG2
  64  * register, determines whether the second half of the flash is also
  65  * Program Flash or FlexNVM+FlexRAM.  When PFLSH is set, the second
  66  * half of flash is Program Flash and is contiguous in the memory map
  67  * from the first half.  When PFLSH is clear, the second half of flash
  68  * is FlexNVM and always starts at address 0x10000000.  FlexRAM, which
  69  * is also present when PFLSH is clear, always starts at address
  70  * 0x14000000.
  71  *
  72  * The Flash Memory Module provides a register set where flash
  73  * commands are loaded to perform flash operations like erase and
  74  * program.  Different commands are available depending on whether
  75  * Program Flash or FlexNVM/FlexRAM is being manipulated.  Although
  76  * the commands used are quite consistent between flash blocks, the
  77  * parameters they accept differ according to the flash granularity.
  78  * Some Kinetis chips have different granularity between Program Flash
  79  * and FlexNVM/FlexRAM, so flash command arguments may differ between
  80  * blocks in the same chip.
  81  *
  82  * Although not documented as such by Freescale, it appears that bits
  83  * 8:7 of the read-only SIM_SDID register reflect the granularity
  84  * settings 0..3, so sector sizes and block counts are applicable
  85  * according to the following table.
  86  */
  87 const struct {
  88         unsigned pflash_sector_size_bytes;
  89         unsigned nvm_sector_size_bytes;
  90         unsigned num_blocks;
  91 } kinetis_flash_params[4] = {
  92         { 1<<10, 1<<10, 2 },
  93         { 2<<10, 1<<10, 2 },
  94         { 2<<10, 2<<10, 2 },
  95         { 4<<10, 4<<10, 4 }
  96 };
  97
  98 /* Addressess */
  99 #define FLEXRAM         0x14000000
 100 #define FTFx_FSTAT      0x40020000
 101 #define FTFx_FCNFG      0x40020001
 102 #define FTFx_FCCOB3     0x40020004
 103 #define FTFx_FPROT3     0x40020010
 104 #define SIM_SDID        0x40048024
 105 #define SIM_FCFG1       0x4004804c
 106 #define SIM_FCFG2       0x40048050
 107
 108 /* Commands */
 109 #define FTFx_CMD_BLOCKSTAT 0x00
 110 #define FTFx_CMD_SECTSTAT 0x01
 111 #define FTFx_CMD_LWORDPROG 0x06
 112 #define FTFx_CMD_SECTERASE 0x09
 113 #define FTFx_CMD_SECTWRITE 0x0b
 114 #define FTFx_CMD_SETFLEXRAM 0x81
 115
 116 struct kinetis_flash_bank {
 117         unsigned granularity;
 118         unsigned bank_ordinal;
 119         uint32_t sector_size;
 120         uint32_t protection_size;
 121
 122         uint32_t sim_sdid;
 123         uint32_t sim_fcfg1;
 124         uint32_t sim_fcfg2;
 125
 126         enum {
 127                 FC_AUTO = 0,
 128                 FC_PFLASH,
 129                 FC_FLEX_NVM,
 130                 FC_FLEX_RAM,
 131         } flash_class;
 132 };
 133
 134 FLASH_BANK_COMMAND_HANDLER(kinetis_flash_bank_command)
 135 {
 136         struct kinetis_flash_bank *bank_info;
 137
 138         if (CMD_ARGC < 6)
 139                 return ERROR_COMMAND_SYNTAX_ERROR;
 140
 141         LOG_INFO("add flash_bank kinetis %s", bank->name);
 142
 143         bank_info = malloc(sizeof(struct kinetis_flash_bank));
 144
 145         memset(bank_info, 0, sizeof(struct kinetis_flash_bank));
 146
 147         bank->driver_priv = bank_info;
 148
 149         return ERROR_OK;
 150 }
 151
 152 static int kinetis_protect(struct flash_bank *bank, int set, int first,
 153                            int last)
 154 {
 155         LOG_WARNING("kinetis_protect not supported yet");
 156         /* FIXME: TODO */
 157
 158         if (bank->target->state != TARGET_HALTED) {
 159                 LOG_ERROR("Target not halted");
 160                 return ERROR_TARGET_NOT_HALTED;
 161         }
 162
 163         return ERROR_FLASH_BANK_INVALID;
 164 }
 165
 166 static int kinetis_protect_check(struct flash_bank *bank)
 167 {
 168         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 169
 170         if (bank->target->state != TARGET_HALTED) {
 171                 LOG_ERROR("Target not halted");
 172                 return ERROR_TARGET_NOT_HALTED;
 173         }
 174
 175         if (kinfo->flash_class == FC_PFLASH) {
 176                 int result;
 177                 uint8_t buffer[4];
 178                 uint32_t fprot, psec;
 179                 int i, b;
 180
 181                 /* read protection register */
 182                 result = target_read_memory(bank->target, FTFx_FPROT3, 1, 4, buffer);
 183
 184                 if (result != ERROR_OK)
 185                         return result;
 186
 187                 fprot = target_buffer_get_u32(bank->target, buffer);
 188
 189                 /*
 190                  * Every bit protects 1/32 of the full flash (not necessarily
 191                  * just this bank), but we enforce the bank ordinals for
 192                  * PFlash to start at zero.
 193                  */
 194                 b = kinfo->bank_ordinal * (bank->size / kinfo->protection_size);
 195                 for (psec = 0, i = 0; i < bank->num_sectors; i++) {
 196                         if ((fprot >> b) & 1)
 197                                 bank->sectors[i].is_protected = 0;
 198                         else
 199                                 bank->sectors[i].is_protected = 1;
 200
 201                         psec += bank->sectors[i].size;
 202
 203                         if (psec >= kinfo->protection_size) {
 204                                 psec = 0;
 205                                 b++;
 206                         }
 207                 }
 208         } else {
 209                 LOG_ERROR("Protection checks for FlexNVM not yet supported");
 210                 return ERROR_FLASH_BANK_INVALID;
 211         }
 212
 213         return ERROR_OK;
 214 }
 215
 216 static int kinetis_ftfx_command(struct flash_bank *bank, uint32_t w0,
 217                                 uint32_t w1, uint32_t w2, uint8_t *ftfx_fstat)
 218 {
 219         uint8_t buffer[12];
 220         int result, i;
 221
 222         /* wait for done */
 223         for (i = 0; i < 50; i++) {
 224                 result =
 225                         target_read_memory(bank->target, FTFx_FSTAT, 1, 1, buffer);
 226
 227                 if (result != ERROR_OK)
 228                         return result;
 229
 230                 if (buffer[0] & 0x80)
 231                         break;
 232
 233                 buffer[0] = 0x00;
 234         }
 235
 236         if (buffer[0] != 0x80) {
 237                 /* reset error flags */
 238                 buffer[0] = 0x30;
 239                 result =
 240                         target_write_memory(bank->target, FTFx_FSTAT, 1, 1, buffer);
 241                 if (result != ERROR_OK)
 242                         return result;
 243         }
 244
 245         target_buffer_set_u32(bank->target, buffer, w0);
 246         target_buffer_set_u32(bank->target, buffer + 4, w1);
 247         target_buffer_set_u32(bank->target, buffer + 8, w2);
 248
 249         result = target_write_memory(bank->target, FTFx_FCCOB3, 4, 3, buffer);
 250
 251         if (result != ERROR_OK)
 252                 return result;
 253
 254         /* start command */
 255         buffer[0] = 0x80;
 256         result = target_write_memory(bank->target, FTFx_FSTAT, 1, 1, buffer);
 257         if (result != ERROR_OK)
 258                 return result;
 259
 260         /* wait for done */
 261         for (i = 0; i < 50; i++) {
 262                 result =
 263                         target_read_memory(bank->target, FTFx_FSTAT, 1, 1, ftfx_fstat);
 264
 265                 if (result != ERROR_OK)
 266                         return result;
 267
 268                 if (*ftfx_fstat & 0x80)
 269                         break;
 270         }
 271
 272         if ((*ftfx_fstat & 0xf0) != 0x80) {
 273                 LOG_ERROR
 274                         ("ftfx command failed FSTAT: %02X W0: %08X W1: %08X W2: %08X",
 275                          *ftfx_fstat, w0, w1, w2);
 276
 277                 return ERROR_FLASH_OPERATION_FAILED;
 278         }
 279
 280         return ERROR_OK;
 281 }
 282
 283 static int kinetis_erase(struct flash_bank *bank, int first, int last)
 284 {
 285         int result, i;
 286         uint32_t w0 = 0, w1 = 0, w2 = 0;
 287
 288         if (bank->target->state != TARGET_HALTED) {
 289                 LOG_ERROR("Target not halted");
 290                 return ERROR_TARGET_NOT_HALTED;
 291         }
 292
 293         if ((first > bank->num_sectors) || (last > bank->num_sectors))
 294                 return ERROR_FLASH_OPERATION_FAILED;
 295
 296         /*
 297          * FIXME: TODO: use the 'Erase Flash Block' command if the
 298          * requested erase is PFlash or NVM and encompasses the entire
 299          * block.  Should be quicker.
 300          */
 301         for (i = first; i <= last; i++) {
 302                 uint8_t ftfx_fstat;
 303                 /* set command and sector address */
 304                 w0 = (FTFx_CMD_SECTERASE << 24) | (bank->base + bank->sectors[i].offset);
 305
 306                 result = kinetis_ftfx_command(bank, w0, w1, w2, &ftfx_fstat);
 307
 308                 if (result != ERROR_OK) {
 309                         LOG_WARNING("erase sector %d failed", i);
 310                         return ERROR_FLASH_OPERATION_FAILED;
 311                 }
 312
 313                 bank->sectors[i].is_erased = 1;
 314         }
 315
 316         if (first == 0) {
 317                 LOG_WARNING
 318                         ("flash configuration field erased, please reset the device");
 319         }
 320
 321         return ERROR_OK;
 322 }
 323
 324 static int kinetis_write(struct flash_bank *bank, uint8_t *buffer,
 325                          uint32_t offset, uint32_t count)
 326 {
 327         unsigned int i, result, fallback = 0;
 328         uint8_t buf[8];
 329         uint32_t wc, w0 = 0, w1 = 0, w2 = 0;
 330         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 331
 332         if (bank->target->state != TARGET_HALTED) {
 333                 LOG_ERROR("Target not halted");
 334                 return ERROR_TARGET_NOT_HALTED;
 335         }
 336
 337         if (kinfo->flash_class == FC_FLEX_NVM) {
 338                 uint8_t ftfx_fstat;
 339
 340                 LOG_DEBUG("flash write into FlexNVM @%08X", offset);
 341
 342                 /* make flex ram available */
 343                 w0 = (FTFx_CMD_SETFLEXRAM << 24) | 0x00ff0000;
 344
 345                 result = kinetis_ftfx_command(bank, w0, w1, w2, &ftfx_fstat);
 346
 347                 if (result != ERROR_OK)
 348                         return ERROR_FLASH_OPERATION_FAILED;
 349
 350                 /* check if ram ready */
 351                 result = target_read_memory(bank->target, FTFx_FCNFG, 1, 1, buf);
 352
 353                 if (result != ERROR_OK)
 354                         return result;
 355
 356                 if (!(buf[0] & (1 << 1))) {
 357                         /* fallback to longword write */
 358                         fallback = 1;
 359
 360                         LOG_WARNING("ram not ready, fallback to slow longword write (FCNFG: %02X)",
 361                                     buf[0]);
 362                 }
 363         } else {
 364                 LOG_DEBUG("flash write into PFLASH @08%X", offset);
 365         }
 366
 367
 368         /* program section command */
 369         if (fallback == 0) {
 370                 unsigned prog_section_bytes = kinfo->sector_size >> 8;
 371                 for (i = 0; i < count; i += kinfo->sector_size) {
 372                         /*
 373                          * The largest possible Kinetis "section" is
 374                          * 16 bytes.  A full Kinetis sector is always
 375                          * 256 "section"s.
 376                          */
 377                         uint8_t residual_buffer[16];
 378                         uint8_t ftfx_fstat;
 379                         uint32_t section_count = 256;
 380                         uint32_t residual_wc = 0;
 381
 382                         /*
 383                          * Assume the word count covers an entire
 384                          * sector.
 385                          */
 386                         wc = kinfo->sector_size / 4;
 387
 388                         /*
 389                          * If bytes to be programmed are less than the
 390                          * full sector, then determine the number of
 391                          * full-words to program, and put together the
 392                          * residual buffer so that a full "section"
 393                          * may always be programmed.
 394                          */
 395                         if ((count - i) < kinfo->sector_size) {
 396                                 /* number of bytes to program beyond full section */
 397                                 unsigned residual_bc = (count-i) % prog_section_bytes;
 398
 399                                 /* number of complete words to copy directly from buffer */
 400                                 wc = (count - i) / 4;
 401
 402                                 /* number of total sections to write, including residual */
 403                                 section_count = DIV_ROUND_UP((count-i), prog_section_bytes);
 404
 405                                 /* any residual bytes delivers a whole residual section */
 406                                 residual_wc = (residual_bc ? prog_section_bytes : 0)/4;
 407
 408                                 /* clear residual buffer then populate residual bytes */
 409                                 (void) memset(residual_buffer, 0xff, prog_section_bytes);
 410                                 (void) memcpy(residual_buffer, &buffer[i+4*wc], residual_bc);
 411                         }
 412
 413                         LOG_DEBUG("write section @ %08X with length %d bytes",
 414                                   offset + i, (count - i));
 415
 416                         /* write data to flexram as whole-words */
 417                         result = target_write_memory(bank->target, FLEXRAM, 4, wc,
 418                                                      buffer + i);
 419
 420                         if (result != ERROR_OK) {
 421                                 LOG_ERROR("target_write_memory failed");
 422                                 return result;
 423                         }
 424
 425                         /* write the residual words to the flexram */
 426                         if (residual_wc) {
 427                                 result = target_write_memory(bank->target,
 428                                                              FLEXRAM+4*wc,
 429                                                              4, residual_wc,
 430                                                              residual_buffer);
 431
 432                                 if (result != ERROR_OK) {
 433                                         LOG_ERROR("target_write_memory failed");
 434                                         return result;
 435                                 }
 436                         }
 437
 438                         /* execute section-write command */
 439                         w0 = (FTFx_CMD_SECTWRITE << 24) | (bank->base + offset + i);
 440                         w1 = section_count << 16;
 441
 442                         result = kinetis_ftfx_command(bank, w0, w1, w2, &ftfx_fstat);
 443
 444                         if (result != ERROR_OK)
 445                                 return ERROR_FLASH_OPERATION_FAILED;
 446                 }
 447         }
 448         /* program longword command, not supported in "SF3" devices */
 449         else if (kinfo->granularity != 3) {
 450                 for (i = 0; i < count; i += 4) {
 451                         uint8_t ftfx_fstat;
 452
 453                         LOG_DEBUG("write longword @ %08X", offset + i);
 454
 455                         w0 = (FTFx_CMD_LWORDPROG << 24) | (bank->base + offset + i);
 456                         if (count - i < 4) {
 457                                 uint32_t padding = 0xffffffff;
 458                                 memcpy(&padding, buffer + i, count - i);
 459                                 w1 = buf_get_u32(&padding, 0, 32);
 460                         } else {
 461                                 w1 = buf_get_u32(buffer + i, 0, 32);
 462                         }
 463
 464                         result = kinetis_ftfx_command(bank, w0, w1, w2, &ftfx_fstat);
 465
 466                         if (result != ERROR_OK)
 467                                 return ERROR_FLASH_OPERATION_FAILED;
 468                 }
 469         } else {
 470                 LOG_ERROR("Flash write strategy not implemented");
 471                 return ERROR_FLASH_OPERATION_FAILED;
 472         }
 473
 474         return ERROR_OK;
 475 }
 476
 477 static int kinetis_read_part_info(struct flash_bank *bank)
 478 {
 479         int result, i;
 480         uint8_t buf[4];
 481         uint32_t offset = 0;
 482         uint8_t fcfg1_nvmsize, fcfg1_pfsize, fcfg1_eesize, fcfg2_pflsh;
 483         uint32_t nvm_size = 0, pf_size = 0, ee_size = 0;
 484         unsigned granularity, num_blocks = 0, num_pflash_blocks = 0, num_nvm_blocks = 0,
 485                 first_nvm_bank = 0, reassign = 0;
 486         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 487
 488         result = target_read_memory(bank->target, SIM_SDID, 1, 4, buf);
 489         if (result != ERROR_OK)
 490                 return result;
 491         kinfo->sim_sdid = target_buffer_get_u32(bank->target, buf);
 492         granularity = (kinfo->sim_sdid >> 7) & 0x03;
 493
 494         result = target_read_memory(bank->target, SIM_FCFG1, 1, 4, buf);
 495         if (result != ERROR_OK)
 496                 return result;
 497         kinfo->sim_fcfg1 = target_buffer_get_u32(bank->target, buf);
 498
 499         result = target_read_memory(bank->target, SIM_FCFG2, 1, 4, buf);
 500         if (result != ERROR_OK)
 501                 return result;
 502         kinfo->sim_fcfg2 = target_buffer_get_u32(bank->target, buf);
 503         fcfg2_pflsh = (kinfo->sim_fcfg2 >> 23) & 0x01;
 504
 505         LOG_DEBUG("SDID: %08X FCFG1: %08X FCFG2: %08X", kinfo->sim_sdid,
 506                   kinfo->sim_fcfg1, kinfo->sim_fcfg2);
 507
 508         fcfg1_nvmsize = (uint8_t)((kinfo->sim_fcfg1 >> 28) & 0x0f);
 509         fcfg1_pfsize = (uint8_t)((kinfo->sim_fcfg1 >> 24) & 0x0f);
 510         fcfg1_eesize = (uint8_t)((kinfo->sim_fcfg1 >> 16) & 0x0f);
 511
 512         /* when the PFLSH bit is set, there is no FlexNVM/FlexRAM */
 513         if (!fcfg2_pflsh) {
 514                 switch (fcfg1_nvmsize) {
 515                 case 0x03:
 516                 case 0x07:
 517                 case 0x09:
 518                 case 0x0b:
 519                         nvm_size = 1 << (14 + (fcfg1_nvmsize >> 1));
 520                         break;
 521                 case 0x0f:
 522                         if (granularity == 3)
 523                                 nvm_size = 512<<10;
 524                         else
 525                                 nvm_size = 256<<10;
 526                         break;
 527                 default:
 528                         nvm_size = 0;
 529                         break;
 530                 }
 531
 532                 switch (fcfg1_eesize) {
 533                 case 0x00:
 534                 case 0x01:
 535                 case 0x02:
 536                 case 0x03:
 537                 case 0x04:
 538                 case 0x05:
 539                 case 0x06:
 540                 case 0x07:
 541                 case 0x08:
 542                 case 0x09:
 543                         ee_size = (16 << (10 - fcfg1_eesize));
 544                         break;
 545                 default:
 546                         ee_size = 0;
 547                         break;
 548                 }
 549         }
 550
 551         switch (fcfg1_pfsize) {
 552         case 0x03:
 553         case 0x05:
 554         case 0x07:
 555         case 0x09:
 556         case 0x0b:
 557         case 0x0d:
 558                 pf_size = 1 << (14 + (fcfg1_pfsize >> 1));
 559                 break;
 560         case 0x0f:
 561                 if (granularity == 3)
 562                         pf_size = 1024<<10;
 563                 else if (fcfg2_pflsh)
 564                         pf_size = 512<<10;
 565                 else
 566                         pf_size = 256<<10;
 567                 break;
 568         default:
 569                 pf_size = 0;
 570                 break;
 571         }
 572
 573         LOG_DEBUG("FlexNVM: %d PFlash: %d FlexRAM: %d PFLSH: %d",
 574                   nvm_size, pf_size, ee_size, fcfg2_pflsh);
 575
 576         num_blocks = kinetis_flash_params[granularity].num_blocks;
 577         num_pflash_blocks = num_blocks / (2 - fcfg2_pflsh);
 578         first_nvm_bank = num_pflash_blocks;
 579         num_nvm_blocks = num_blocks - num_pflash_blocks;
 580
 581         LOG_DEBUG("%d blocks total: %d PFlash, %d FlexNVM",
 582                   num_blocks, num_pflash_blocks, num_nvm_blocks);
 583
 584         /*
 585          * If the flash class is already assigned, verify the
 586          * parameters.
 587          */
 588         if (kinfo->flash_class != FC_AUTO) {
 589                 if (kinfo->bank_ordinal != (unsigned) bank->bank_number) {
 590                         LOG_WARNING("Flash ordinal/bank number mismatch");
 591                         reassign = 1;
 592                 } else if (kinfo->granularity != granularity) {
 593                         LOG_WARNING("Flash granularity mismatch");
 594                         reassign = 1;
 595                 } else {
 596                         switch (kinfo->flash_class) {
 597                         case FC_PFLASH:
 598                                 if (kinfo->bank_ordinal >= first_nvm_bank) {
 599                                         LOG_WARNING("Class mismatch, bank %d is not PFlash",
 600                                                     bank->bank_number);
 601                                         reassign = 1;
 602                                 } else if (bank->size != (pf_size / num_pflash_blocks)) {
 603                                         LOG_WARNING("PFlash size mismatch");
 604                                         reassign = 1;
 605                                 } else if (bank->base !=
 606                                          (0x00000000 + bank->size * kinfo->bank_ordinal)) {
 607                                         LOG_WARNING("PFlash address range mismatch");
 608                                         reassign = 1;
 609                                 } else if (kinfo->sector_size !=
 610                                          kinetis_flash_params[granularity].pflash_sector_size_bytes) {
 611                                         LOG_WARNING("PFlash sector size mismatch");
 612                                         reassign = 1;
 613                                 } else {
 614                                         LOG_DEBUG("PFlash bank %d already configured okay",
 615                                                   kinfo->bank_ordinal);
 616                                 }
 617                                 break;
 618                         case FC_FLEX_NVM:
 619                                 if ((kinfo->bank_ordinal >= num_blocks) ||
 620                                     (kinfo->bank_ordinal < first_nvm_bank)) {
 621                                         LOG_WARNING("Class mismatch, bank %d is not FlexNVM",
 622                                                     bank->bank_number);
 623                                         reassign = 1;
 624                                 } else if (bank->size != (nvm_size / num_nvm_blocks)) {
 625                                         LOG_WARNING("FlexNVM size mismatch");
 626                                         reassign = 1;
 627                                 } else if (bank->base !=
 628                                          (0x10000000 + bank->size * kinfo->bank_ordinal)) {
 629                                         LOG_WARNING("FlexNVM address range mismatch");
 630                                         reassign = 1;
 631                                 } else if (kinfo->sector_size !=
 632                                          kinetis_flash_params[granularity].nvm_sector_size_bytes) {
 633                                         LOG_WARNING("FlexNVM sector size mismatch");
 634                                         reassign = 1;
 635                                 } else {
 636                                         LOG_DEBUG("FlexNVM bank %d already configured okay",
 637                                                   kinfo->bank_ordinal);
 638                                 }
 639                                 break;
 640                         case FC_FLEX_RAM:
 641                                 if (kinfo->bank_ordinal != num_blocks) {
 642                                         LOG_WARNING("Class mismatch, bank %d is not FlexRAM",
 643                                                     bank->bank_number);
 644                                         reassign = 1;
 645                                 } else if (bank->size != ee_size) {
 646                                         LOG_WARNING("FlexRAM size mismatch");
 647                                         reassign = 1;
 648                                 } else if (bank->base != FLEXRAM) {
 649                                         LOG_WARNING("FlexRAM address mismatch");
 650                                         reassign = 1;
 651                                 } else if (kinfo->sector_size !=
 652                                          kinetis_flash_params[granularity].nvm_sector_size_bytes) {
 653                                         LOG_WARNING("FlexRAM sector size mismatch");
 654                                         reassign = 1;
 655                                 } else {
 656                                         LOG_DEBUG("FlexRAM bank %d already configured okay",
 657                                                   kinfo->bank_ordinal);
 658                                 }
 659                                 break;
 660
 661                         default:
 662                                 LOG_WARNING("Unknown or inconsistent flash class");
 663                                 reassign = 1;
 664                                 break;
 665                         }
 666                 }
 667         } else {
 668                 LOG_INFO("Probing flash info for bank %d", bank->bank_number);
 669                 reassign = 1;
 670         }
 671
 672         if (!reassign)
 673                 return ERROR_OK;
 674
 675         kinfo->granularity = granularity;
 676
 677         if ((unsigned)bank->bank_number < num_pflash_blocks) {
 678                 /* pflash, banks start at address zero */
 679                 kinfo->flash_class = FC_PFLASH;
 680                 bank->size = (pf_size / num_pflash_blocks);
 681                 bank->base = 0x00000000 + bank->size * bank->bank_number;
 682                 kinfo->sector_size = kinetis_flash_params[granularity].pflash_sector_size_bytes;
 683                 kinfo->protection_size = pf_size / 32;
 684         } else if ((unsigned)bank->bank_number < num_blocks) {
 685                 /* nvm, banks start at address 0x10000000 */
 686                 kinfo->flash_class = FC_FLEX_NVM;
 687                 bank->size = (nvm_size / num_nvm_blocks);
 688                 bank->base = 0x10000000 + bank->size * (bank->bank_number - first_nvm_bank);
 689                 kinfo->sector_size = kinetis_flash_params[granularity].nvm_sector_size_bytes;
 690                 kinfo->protection_size = 0; /* FIXME: TODO: depends on DEPART bits, chip */
 691         } else if ((unsigned)bank->bank_number == num_blocks) {
 692                 LOG_ERROR("FlexRAM support not yet implemented");
 693                 return ERROR_FLASH_OPER_UNSUPPORTED;
 694         } else {
 695                 LOG_ERROR("Cannot determine parameters for bank %d, only %d banks on device",
 696                           bank->bank_number, num_blocks);
 697                 return ERROR_FLASH_BANK_INVALID;
 698         }
 699
 700         if (bank->sectors) {
 701                 free(bank->sectors);
 702                 bank->sectors = NULL;
 703         }
 704
 705         bank->num_sectors = bank->size / kinfo->sector_size;
 706         assert(bank->num_sectors > 0);
 707         bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
 708
 709         for (i = 0; i < bank->num_sectors; i++) {
 710                 bank->sectors[i].offset = offset;
 711                 bank->sectors[i].size = kinfo->sector_size;
 712                 offset += kinfo->sector_size;
 713                 bank->sectors[i].is_erased = -1;
 714                 bank->sectors[i].is_protected = 1;
 715         }
 716
 717         return ERROR_OK;
 718 }
 719
 720 static int kinetis_probe(struct flash_bank *bank)
 721 {
 722         if (bank->target->state != TARGET_HALTED) {
 723                 LOG_WARNING("Cannot communicate... target not halted.");
 724                 return ERROR_TARGET_NOT_HALTED;
 725         }
 726
 727         return kinetis_read_part_info(bank);
 728 }
 729
 730 static int kinetis_auto_probe(struct flash_bank *bank)
 731 {
 732         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 733
 734         if (kinfo->sim_sdid)
 735                 return ERROR_OK;
 736
 737         return kinetis_probe(bank);
 738 }
 739
 740 static int kinetis_info(struct flash_bank *bank, char *buf, int buf_size)
 741 {
 742         const char *bank_class_names[] = {
 743                 "(ANY)", "PFlash", "FlexNVM", "FlexRAM"
 744         };
 745
 746         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 747
 748         (void) snprintf(buf, buf_size,
 749                         "%s driver for %s flash bank %s at 0x%8.8" PRIx32 "",
 750                         bank->driver->name, bank_class_names[kinfo->flash_class],
 751                         bank->name, bank->base);
 752
 753         return ERROR_OK;
 754 }
 755
 756 static int kinetis_blank_check(struct flash_bank *bank)
 757 {
 758         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 759
 760         if (bank->target->state != TARGET_HALTED) {
 761                 LOG_ERROR("Target not halted");
 762                 return ERROR_TARGET_NOT_HALTED;
 763         }
 764
 765         if (kinfo->flash_class == FC_PFLASH) {
 766                 int result;
 767                 uint32_t w0 = 0, w1 = 0, w2 = 0;
 768                 uint8_t ftfx_fstat;
 769
 770                 /* check if whole bank is blank */
 771                 w0 = (FTFx_CMD_BLOCKSTAT << 24) | bank->base;
 772                 w1 = 0; /* "normal margin" */
 773
 774                 result = kinetis_ftfx_command(bank, w0, w1, w2, &ftfx_fstat);
 775
 776                 if (result != ERROR_OK)
 777                         return result;
 778
 779                 if (ftfx_fstat & 0x01) {
 780                         /* the whole bank is not erased, check sector-by-sector */
 781                         int i;
 782                         for (i = 0; i < bank->num_sectors; i++) {
 783                                 w0 = (FTFx_CMD_SECTSTAT << 24) | (bank->base + bank->sectors[i].offset);
 784                                 w1 = (0x100 << 16) | 0; /* normal margin */
 785
 786                                 result = kinetis_ftfx_command(bank, w0, w1, w2, &ftfx_fstat);
 787
 788                                 if (result == ERROR_OK) {
 789                                         bank->sectors[i].is_erased = !(ftfx_fstat & 0x01);
 790                                 } else {
 791                                         LOG_DEBUG("Ignoring errored PFlash sector blank-check");
 792                                         bank->sectors[i].is_erased = -1;
 793                                 }
 794                         }
 795                 } else {
 796                         /* the whole bank is erased, update all sectors */
 797                         int i;
 798                         for (i = 0; i < bank->num_sectors; i++)
 799                                 bank->sectors[i].is_erased = 1;
 800                 }
 801         } else {
 802                 LOG_WARNING("kinetis_blank_check not supported yet for FlexNVM");
 803                 return ERROR_FLASH_OPERATION_FAILED;
 804         }
 805
 806         return ERROR_OK;
 807 }
 808
 809 static int kinetis_flash_read(struct flash_bank *bank,
 810                               uint8_t *buffer, uint32_t offset, uint32_t count)
 811 {
 812         LOG_WARNING("kinetis_flash_read not supported yet");
 813
 814         if (bank->target->state != TARGET_HALTED) {
 815                 LOG_ERROR("Target not halted");
 816                 return ERROR_TARGET_NOT_HALTED;
 817         }
 818
 819         return ERROR_FLASH_OPERATION_FAILED;
 820 }
 821
 822 struct flash_driver kinetis_flash = {
 823         .name = "kinetis",
 824         .flash_bank_command = kinetis_flash_bank_command,
 825         .erase = kinetis_erase,
 826         .protect = kinetis_protect,
 827         .write = kinetis_write,
 828         .read = kinetis_flash_read,
 829         .probe = kinetis_probe,
 830         .auto_probe = kinetis_auto_probe,
 831         .erase_check = kinetis_blank_check,
 832         .protect_check = kinetis_protect_check,
 833         .info = kinetis_info,
 834 };