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  *   Copyright (C) 2013 Nemui Trinomius                                    *
  12  *   nemuisan_kawausogasuki@live.jp                                        *
  13  *                                                                         *
  14  *   This program is free software; you can redistribute it and/or modify  *
  15  *   it under the terms of the GNU General Public License as published by  *
  16  *   the Free Software Foundation; either version 2 of the License, or     *
  17  *   (at your option) any later version.                                   *
  18  *                                                                         *
  19  *   This program is distributed in the hope that it will be useful,       *
  20  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  21  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  22  *   GNU General Public License for more details.                          *
  23  *                                                                         *
  24  *   You should have received a copy of the GNU General Public License     *
  25  *   along with this program; if not, write to the                         *
  26  *   Free Software Foundation, Inc.,                                       *
  27  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  28  ***************************************************************************/
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include "config.h"
  32 #endif
  33
  34 #include "imp.h"
  35 #include <helper/binarybuffer.h>
  36 #include <target/algorithm.h>
  37 #include <target/armv7m.h>
  38
  39 /*
  40  * Implementation Notes
  41  *
  42  * The persistent memories in the Kinetis chip families K10 through
  43  * K70 are all manipulated with the Flash Memory Module.  Some
  44  * variants call this module the FTFE, others call it the FTFL.  To
  45  * indicate that both are considered here, we use FTFX.
  46  *
  47  * Within the module, according to the chip variant, the persistent
  48  * memory is divided into what Freescale terms Program Flash, FlexNVM,
  49  * and FlexRAM.  All chip variants have Program Flash.  Some chip
  50  * variants also have FlexNVM and FlexRAM, which always appear
  51  * together.
  52  *
  53  * A given Kinetis chip may have 2 or 4 blocks of flash.  Here we map
  54  * each block to a separate bank.  Each block size varies by chip and
  55  * may be determined by the read-only SIM_FCFG1 register.  The sector
  56  * size within each bank/block varies by the chip granularity as
  57  * described below.
  58  *
  59  * Kinetis offers four different of flash granularities applicable
  60  * across the chip families.  The granularity is apparently reflected
  61  * by at least the reference manual suffix.  For example, for chip
  62  * MK60FN1M0VLQ12, reference manual K60P144M150SF3RM ends in "SF3RM",
  63  * where the "3" indicates there are four flash blocks with 4kiB
  64  * sectors.  All possible granularities are indicated below.
  65  *
  66  * The first half of the flash (1 or 2 blocks, depending on the
  67  * granularity) is always Program Flash and always starts at address
  68  * 0x00000000.  The "PFLSH" flag, bit 23 of the read-only SIM_FCFG2
  69  * register, determines whether the second half of the flash is also
  70  * Program Flash or FlexNVM+FlexRAM.  When PFLSH is set, the second
  71  * half of flash is Program Flash and is contiguous in the memory map
  72  * from the first half.  When PFLSH is clear, the second half of flash
  73  * is FlexNVM and always starts at address 0x10000000.  FlexRAM, which
  74  * is also present when PFLSH is clear, always starts at address
  75  * 0x14000000.
  76  *
  77  * The Flash Memory Module provides a register set where flash
  78  * commands are loaded to perform flash operations like erase and
  79  * program.  Different commands are available depending on whether
  80  * Program Flash or FlexNVM/FlexRAM is being manipulated.  Although
  81  * the commands used are quite consistent between flash blocks, the
  82  * parameters they accept differ according to the flash granularity.
  83  * Some Kinetis chips have different granularity between Program Flash
  84  * and FlexNVM/FlexRAM, so flash command arguments may differ between
  85  * blocks in the same chip.
  86  *
  87  */
  88
  89 static const struct {
  90         unsigned pflash_sector_size_bytes;
  91         unsigned nvm_sector_size_bytes;
  92         unsigned num_blocks;
  93 } kinetis_flash_params[4] = {
  94         { 1<<10, 1<<10, 2 },
  95         { 2<<10, 1<<10, 2 },
  96         { 2<<10, 2<<10, 2 },
  97         { 4<<10, 4<<10, 4 }
  98 };
  99
 100 /* Addressess */
 101 #define FLEXRAM         0x14000000
 102 #define FTFx_FSTAT      0x40020000
 103 #define FTFx_FCNFG      0x40020001
 104 #define FTFx_FCCOB3     0x40020004
 105 #define FTFx_FPROT3     0x40020010
 106 #define SIM_SDID        0x40048024
 107 #define SIM_FCFG1       0x4004804c
 108 #define SIM_FCFG2       0x40048050
 109
 110 /* Commands */
 111 #define FTFx_CMD_BLOCKSTAT  0x00
 112 #define FTFx_CMD_SECTSTAT   0x01
 113 #define FTFx_CMD_LWORDPROG  0x06
 114 #define FTFx_CMD_SECTERASE  0x09
 115 #define FTFx_CMD_SECTWRITE  0x0b
 116 #define FTFx_CMD_SETFLEXRAM 0x81
 117 #define FTFx_CMD_MASSERASE  0x44
 118
 119 /* The Kinetis K series uses the following SDID layout :
 120  * Bit 31-16 : 0
 121  * Bit 15-12 : REVID
 122  * Bit 11-7  : DIEID
 123  * Bit 6-4   : FAMID
 124  * Bit 3-0   : PINID
 125  *
 126  * The Kinetis KL series uses the following SDID layout :
 127  * Bit 31-28 : FAMID
 128  * Bit 27-24 : SUBFAMID
 129  * Bit 23-20 : SERIESID
 130  * Bit 19-16 : SRAMSIZE
 131  * Bit 15-12 : REVID
 132  * Bit 6-4   : Reserved (0)
 133  * Bit 3-0   : PINID
 134  *
 135  * SERIESID should be 1 for the KL-series so we assume that if
 136  * bits 31-16 are 0 then it's a K-series MCU.
 137  */
 138
 139 #define KINETIS_SDID_K_SERIES_MASK  0x0000FFFF
 140
 141 #define KINETIS_SDID_DIEID_MASK 0x00000F80
 142 #define KINETIS_SDID_DIEID_K_A  0x00000100
 143 #define KINETIS_SDID_DIEID_K_B  0x00000200
 144 #define KINETIS_SDID_DIEID_KL   0x00000000
 145
 146 /* We can't rely solely on the FAMID field to determine the MCU
 147  * type since some FAMID values identify multiple MCUs with
 148  * different flash sector sizes (K20 and K22 for instance).
 149  * Therefore we combine it with the DIEID bits which may possibly
 150  * break if Freescale bumps the DIEID for a particular MCU. */
 151 #define KINETIS_K_SDID_TYPE_MASK 0x00000FF0
 152 #define KINETIS_K_SDID_K10_M50   0x00000000
 153 #define KINETIS_K_SDID_K10_M72   0x00000080
 154 #define KINETIS_K_SDID_K10_M100  0x00000100
 155 #define KINETIS_K_SDID_K10_M120  0x00000180
 156 #define KINETIS_K_SDID_K11               0x00000220
 157 #define KINETIS_K_SDID_K12               0x00000200
 158 #define KINETIS_K_SDID_K20_M50   0x00000010
 159 #define KINETIS_K_SDID_K20_M72   0x00000090
 160 #define KINETIS_K_SDID_K20_M100  0x00000110
 161 #define KINETIS_K_SDID_K20_M120  0x00000190
 162 #define KINETIS_K_SDID_K21_M50   0x00000230
 163 #define KINETIS_K_SDID_K21_M120  0x00000330
 164 #define KINETIS_K_SDID_K22_M50   0x00000210
 165 #define KINETIS_K_SDID_K22_M120  0x00000310
 166 #define KINETIS_K_SDID_K30_M72   0x000000A0
 167 #define KINETIS_K_SDID_K30_M100  0x00000120
 168 #define KINETIS_K_SDID_K40_M72   0x000000B0
 169 #define KINETIS_K_SDID_K40_M100  0x00000130
 170 #define KINETIS_K_SDID_K50_M72   0x000000E0
 171 #define KINETIS_K_SDID_K51_M72   0x000000F0
 172 #define KINETIS_K_SDID_K53               0x00000170
 173 #define KINETIS_K_SDID_K60_M100  0x00000140
 174 #define KINETIS_K_SDID_K60_M150  0x000001C0
 175 #define KINETIS_K_SDID_K70_M150  0x000001D0
 176
 177 #define KINETIS_KL_SDID_SERIESID_MASK 0x00F00000
 178 #define KINETIS_KL_SDID_SERIESID_KL   0x00100000
 179
 180 struct kinetis_flash_bank {
 181         unsigned granularity;
 182         unsigned bank_ordinal;
 183         uint32_t sector_size;
 184         uint32_t protection_size;
 185         uint32_t klxx;
 186
 187         uint32_t sim_sdid;
 188         uint32_t sim_fcfg1;
 189         uint32_t sim_fcfg2;
 190
 191         enum {
 192                 FC_AUTO = 0,
 193                 FC_PFLASH,
 194                 FC_FLEX_NVM,
 195                 FC_FLEX_RAM,
 196         } flash_class;
 197 };
 198
 199 FLASH_BANK_COMMAND_HANDLER(kinetis_flash_bank_command)
 200 {
 201         struct kinetis_flash_bank *bank_info;
 202
 203         if (CMD_ARGC < 6)
 204                 return ERROR_COMMAND_SYNTAX_ERROR;
 205
 206         LOG_INFO("add flash_bank kinetis %s", bank->name);
 207
 208         bank_info = malloc(sizeof(struct kinetis_flash_bank));
 209
 210         memset(bank_info, 0, sizeof(struct kinetis_flash_bank));
 211
 212         bank->driver_priv = bank_info;
 213
 214         return ERROR_OK;
 215 }
 216
 217 /* Kinetis Program-LongWord Microcodes */
 218 static const uint8_t kinetis_flash_write_code[] = {
 219         /* Params:
 220          * r0 - workarea buffer
 221         * r1 - target address
 222         * r2 - wordcount
 223         * Clobbered:
 224         * r4 - tmp
 225         * r5 - tmp
 226         * r6 - tmp
 227         * r7 - tmp
 228         */
 229
 230                                                         /* .L1: */
 231                                                 /* for(register uint32_t i=0;i<wcount;i++){ */
 232         0x04, 0x1C,                                     /* mov    r4, r0          */
 233         0x00, 0x23,                                     /* mov    r3, #0          */
 234                                                         /* .L2: */
 235         0x0E, 0x1A,                                     /* sub    r6, r1, r0      */
 236         0xA6, 0x19,                                     /* add    r6, r4, r6      */
 237         0x93, 0x42,                                     /* cmp    r3, r2          */
 238         0x16, 0xD0,                                     /* beq    .L9             */
 239                                                         /* .L5: */
 240                                                 /* while((FTFx_FSTAT&FTFA_FSTAT_CCIF_MASK) != FTFA_FSTAT_CCIF_MASK){}; */
 241         0x0B, 0x4D,                                     /* ldr    r5, .L10        */
 242         0x2F, 0x78,                                     /* ldrb   r7, [r5]        */
 243         0x7F, 0xB2,                                     /* sxtb   r7, r7          */
 244         0x00, 0x2F,                                     /* cmp    r7, #0          */
 245         0xFA, 0xDA,                                     /* bge    .L5             */
 246                                                 /* FTFx_FSTAT = FTFA_FSTAT_ACCERR_MASK|FTFA_FSTAT_FPVIOL_MASK|FTFA_FSTAT_RDCO */
 247         0x70, 0x27,                                     /* mov    r7, #112        */
 248         0x2F, 0x70,                                     /* strb   r7, [r5]        */
 249                                                 /* FTFx_FCCOB3 = faddr; */
 250         0x09, 0x4F,                                     /* ldr    r7, .L10+4      */
 251         0x3E, 0x60,                                     /* str    r6, [r7]        */
 252         0x06, 0x27,                                     /* mov    r7, #6          */
 253                                                 /* FTFx_FCCOB0 = 0x06;  */
 254         0x08, 0x4E,                                     /* ldr    r6, .L10+8      */
 255         0x37, 0x70,                                     /* strb   r7, [r6]        */
 256                                                 /* FTFx_FCCOB7 = *pLW;  */
 257         0x80, 0xCC,                                     /* ldmia  r4!, {r7}       */
 258         0x08, 0x4E,                                     /* ldr    r6, .L10+12     */
 259         0x37, 0x60,                                     /* str    r7, [r6]        */
 260                                                 /* FTFx_FSTAT = FTFA_FSTAT_CCIF_MASK; */
 261         0x80, 0x27,                                     /* mov    r7, #128        */
 262         0x2F, 0x70,                                     /* strb   r7, [r5]        */
 263                                                         /* .L4: */
 264                                                 /* while((FTFx_FSTAT&FTFA_FSTAT_CCIF_MASK) != FTFA_FSTAT_CCIF_MASK){}; */
 265         0x2E, 0x78,                                     /* ldrb    r6, [r5]       */
 266         0x77, 0xB2,                                     /* sxtb    r7, r6         */
 267         0x00, 0x2F,                                     /* cmp     r7, #0         */
 268         0xFB, 0xDA,                                     /* bge     .L4            */
 269         0x01, 0x33,                                     /* add     r3, r3, #1     */
 270         0xE4, 0xE7,                                     /* b       .L2            */
 271                                                         /* .L9: */
 272         0x00, 0xBE,                                     /* bkpt #0                */
 273                                                         /* .L10: */
 274         0x00, 0x00, 0x02, 0x40,         /* .word    1073872896    */
 275         0x04, 0x00, 0x02, 0x40,         /* .word    1073872900    */
 276         0x07, 0x00, 0x02, 0x40,         /* .word    1073872903    */
 277         0x08, 0x00, 0x02, 0x40,         /* .word    1073872904    */
 278 };
 279
 280 /* Program LongWord Block Write */
 281 static int kinetis_write_block(struct flash_bank *bank, uint8_t *buffer,
 282                 uint32_t offset, uint32_t wcount)
 283 {
 284         struct target *target = bank->target;
 285         uint32_t buffer_size = 2048;            /* Default minimum value */
 286         struct working_area *write_algorithm;
 287         struct working_area *source;
 288         uint32_t address = bank->base + offset;
 289         struct reg_param reg_params[3];
 290         struct armv7m_algorithm armv7m_info;
 291         int retval = ERROR_OK;
 292
 293         /* Params:
 294          * r0 - workarea buffer
 295          * r1 - target address
 296          * r2 - wordcount
 297          * Clobbered:
 298          * r4 - tmp
 299          * r5 - tmp
 300          * r6 - tmp
 301          * r7 - tmp
 302          */
 303
 304         /* Increase buffer_size if needed */
 305         if (buffer_size < (target->working_area_size/2))
 306                 buffer_size = (target->working_area_size/2);
 307
 308         LOG_INFO("Kinetis: FLASH Write ...");
 309
 310         /* check code alignment */
 311         if (offset & 0x1) {
 312                 LOG_WARNING("offset 0x%" PRIx32 " breaks required 2-byte alignment", offset);
 313                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 314         }
 315
 316         /* allocate working area with flash programming code */
 317         if (target_alloc_working_area(target, sizeof(kinetis_flash_write_code),
 318                         &write_algorithm) != ERROR_OK) {
 319                 LOG_WARNING("no working area available, can't do block memory writes");
 320                 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 321         }
 322
 323         retval = target_write_buffer(target, write_algorithm->address,
 324                 sizeof(kinetis_flash_write_code), kinetis_flash_write_code);
 325         if (retval != ERROR_OK)
 326                 return retval;
 327
 328         /* memory buffer */
 329         while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK) {
 330                 buffer_size /= 4;
 331                 if (buffer_size <= 256) {
 332                         /* free working area, write algorithm already allocated */
 333                         target_free_working_area(target, write_algorithm);
 334
 335                         LOG_WARNING("No large enough working area available, can't do block memory writes");
 336                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 337                 }
 338         }
 339
 340         armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
 341         armv7m_info.core_mode = ARM_MODE_THREAD;
 342
 343         init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT); /* *pLW (*buffer) */
 344         init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT); /* faddr */
 345         init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT); /* number of words to program */
 346
 347         /* write code buffer and use Flash programming code within kinetis       */
 348         /* Set breakpoint to 0 with time-out of 1000 ms                          */
 349         while (wcount > 0) {
 350                 uint32_t thisrun_count = (wcount > (buffer_size / 4)) ? (buffer_size / 4) : wcount;
 351
 352                 retval = target_write_buffer(target, source->address, thisrun_count * 4, buffer);
 353                 if (retval != ERROR_OK)
 354                         break;
 355
 356                 buf_set_u32(reg_params[0].value, 0, 32, source->address);
 357                 buf_set_u32(reg_params[1].value, 0, 32, address);
 358                 buf_set_u32(reg_params[2].value, 0, 32, thisrun_count);
 359
 360                 retval = target_run_algorithm(target, 0, NULL, 3, reg_params,
 361                                 write_algorithm->address, 0, 100000, &armv7m_info);
 362                 if (retval != ERROR_OK) {
 363                         LOG_ERROR("Error executing kinetis Flash programming algorithm");
 364                         retval = ERROR_FLASH_OPERATION_FAILED;
 365                         break;
 366                 }
 367
 368                 buffer += thisrun_count * 4;
 369                 address += thisrun_count * 4;
 370                 wcount -= thisrun_count;
 371         }
 372
 373         target_free_working_area(target, source);
 374         target_free_working_area(target, write_algorithm);
 375
 376         destroy_reg_param(&reg_params[0]);
 377         destroy_reg_param(&reg_params[1]);
 378         destroy_reg_param(&reg_params[2]);
 379
 380         return retval;
 381 }
 382
 383 static int kinetis_protect(struct flash_bank *bank, int set, int first, int last)
 384 {
 385         LOG_WARNING("kinetis_protect not supported yet");
 386         /* FIXME: TODO */
 387
 388         if (bank->target->state != TARGET_HALTED) {
 389                 LOG_ERROR("Target not halted");
 390                 return ERROR_TARGET_NOT_HALTED;
 391         }
 392
 393         return ERROR_FLASH_BANK_INVALID;
 394 }
 395
 396 static int kinetis_protect_check(struct flash_bank *bank)
 397 {
 398         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 399
 400         if (bank->target->state != TARGET_HALTED) {
 401                 LOG_ERROR("Target not halted");
 402                 return ERROR_TARGET_NOT_HALTED;
 403         }
 404
 405         if (kinfo->flash_class == FC_PFLASH) {
 406                 int result;
 407                 uint8_t buffer[4];
 408                 uint32_t fprot, psec;
 409                 int i, b;
 410
 411                 /* read protection register */
 412                 result = target_read_memory(bank->target, FTFx_FPROT3, 1, 4, buffer);
 413
 414                 if (result != ERROR_OK)
 415                         return result;
 416
 417                 fprot = target_buffer_get_u32(bank->target, buffer);
 418
 419                 /*
 420                  * Every bit protects 1/32 of the full flash (not necessarily
 421                  * just this bank), but we enforce the bank ordinals for
 422                  * PFlash to start at zero.
 423                  */
 424                 b = kinfo->bank_ordinal * (bank->size / kinfo->protection_size);
 425                 for (psec = 0, i = 0; i < bank->num_sectors; i++) {
 426                         if ((fprot >> b) & 1)
 427                                 bank->sectors[i].is_protected = 0;
 428                         else
 429                                 bank->sectors[i].is_protected = 1;
 430
 431                         psec += bank->sectors[i].size;
 432
 433                         if (psec >= kinfo->protection_size) {
 434                                 psec = 0;
 435                                 b++;
 436                         }
 437                 }
 438         } else {
 439                 LOG_ERROR("Protection checks for FlexNVM not yet supported");
 440                 return ERROR_FLASH_BANK_INVALID;
 441         }
 442
 443         return ERROR_OK;
 444 }
 445
 446 static int kinetis_ftfx_command(struct flash_bank *bank, uint8_t fcmd, uint32_t faddr,
 447                                 uint8_t fccob4, uint8_t fccob5, uint8_t fccob6, uint8_t fccob7,
 448                                 uint8_t fccob8, uint8_t fccob9, uint8_t fccoba, uint8_t fccobb,
 449                                 uint8_t *ftfx_fstat)
 450 {
 451         uint8_t command[12] = {faddr & 0xff, (faddr >> 8) & 0xff, (faddr >> 16) & 0xff, fcmd,
 452                         fccob7, fccob6, fccob5, fccob4,
 453                         fccobb, fccoba, fccob9, fccob8};
 454         int result, i;
 455         uint8_t buffer;
 456
 457         /* wait for done */
 458         for (i = 0; i < 50; i++) {
 459                 result =
 460                         target_read_memory(bank->target, FTFx_FSTAT, 1, 1, &buffer);
 461
 462                 if (result != ERROR_OK)
 463                         return result;
 464
 465                 if (buffer & 0x80)
 466                         break;
 467
 468                 buffer = 0x00;
 469         }
 470
 471         if (buffer != 0x80) {
 472                 /* reset error flags */
 473                 buffer = 0x30;
 474                 result =
 475                         target_write_memory(bank->target, FTFx_FSTAT, 1, 1, &buffer);
 476                 if (result != ERROR_OK)
 477                         return result;
 478         }
 479
 480         result = target_write_memory(bank->target, FTFx_FCCOB3, 4, 3, command);
 481
 482         if (result != ERROR_OK)
 483                 return result;
 484
 485         /* start command */
 486         buffer = 0x80;
 487         result = target_write_memory(bank->target, FTFx_FSTAT, 1, 1, &buffer);
 488         if (result != ERROR_OK)
 489                 return result;
 490
 491         /* wait for done */
 492         for (i = 0; i < 240; i++) { /* Need longtime for "Mass Erase" Command Nemui Changed */
 493                 result =
 494                         target_read_memory(bank->target, FTFx_FSTAT, 1, 1, ftfx_fstat);
 495
 496                 if (result != ERROR_OK)
 497                         return result;
 498
 499                 if (*ftfx_fstat & 0x80)
 500                         break;
 501         }
 502
 503         if ((*ftfx_fstat & 0xf0) != 0x80) {
 504                 LOG_ERROR
 505                         ("ftfx command failed FSTAT: %02X FCCOB: %02X%02X%02X%02X %02X%02X%02X%02X %02X%02X%02X%02X",
 506                          *ftfx_fstat, command[3], command[2], command[1], command[0],
 507                          command[7], command[6], command[5], command[4],
 508                          command[11], command[10], command[9], command[8]);
 509                 return ERROR_FLASH_OPERATION_FAILED;
 510         }
 511
 512         return ERROR_OK;
 513 }
 514
 515 static int kinetis_mass_erase(struct flash_bank *bank)
 516 {
 517         int result;
 518         uint8_t ftfx_fstat;
 519
 520         if (bank->target->state != TARGET_HALTED) {
 521                 LOG_ERROR("Target not halted");
 522                 return ERROR_TARGET_NOT_HALTED;
 523         }
 524
 525         /* check if whole bank is blank */
 526         LOG_INFO("Execute Erase All Blocks");
 527         /* set command and sector address */
 528         result = kinetis_ftfx_command(bank, FTFx_CMD_MASSERASE, 0,
 529                                             0, 0, 0, 0,  0, 0, 0, 0,  &ftfx_fstat);
 530         /* Anyway Result, write FSEC to unsecure forcely */
 531         /*      if (result != ERROR_OK)
 532                 return result;*/
 533
 534         /* Write to MCU security status unsecure in Flash security byte(for Kinetis-L need) */
 535         LOG_INFO("Write to MCU security status unsecure Anyway!");
 536         uint8_t padding[4] = {0xFE, 0xFF, 0xFF, 0xFF}; /* Write 0xFFFFFFFE */
 537
 538         result = kinetis_ftfx_command(bank, FTFx_CMD_LWORDPROG, (bank->base + 0x0000040C),
 539                                 padding[3], padding[2], padding[1], padding[0],
 540                                 0, 0, 0, 0,  &ftfx_fstat);
 541         if (result != ERROR_OK)
 542                 return ERROR_FLASH_OPERATION_FAILED;
 543
 544         return ERROR_OK;
 545 }
 546
 547 static int kinetis_erase(struct flash_bank *bank, int first, int last)
 548 {
 549         int result, i;
 550
 551         if (bank->target->state != TARGET_HALTED) {
 552                 LOG_ERROR("Target not halted");
 553                 return ERROR_TARGET_NOT_HALTED;
 554         }
 555
 556         if ((first > bank->num_sectors) || (last > bank->num_sectors))
 557                 return ERROR_FLASH_OPERATION_FAILED;
 558
 559         if ((first == 0) && (last == (bank->num_sectors - 1)))
 560                 return kinetis_mass_erase(bank);
 561
 562         /*
 563          * FIXME: TODO: use the 'Erase Flash Block' command if the
 564          * requested erase is PFlash or NVM and encompasses the entire
 565          * block.  Should be quicker.
 566          */
 567         for (i = first; i <= last; i++) {
 568                 uint8_t ftfx_fstat;
 569                 /* set command and sector address */
 570                 result = kinetis_ftfx_command(bank, FTFx_CMD_SECTERASE, bank->base + bank->sectors[i].offset,
 571                                 0, 0, 0, 0,  0, 0, 0, 0,  &ftfx_fstat);
 572
 573                 if (result != ERROR_OK) {
 574                         LOG_WARNING("erase sector %d failed", i);
 575                         return ERROR_FLASH_OPERATION_FAILED;
 576                 }
 577
 578                 bank->sectors[i].is_erased = 1;
 579         }
 580
 581         if (first == 0) {
 582                 LOG_WARNING
 583                         ("flash configuration field erased, please reset the device");
 584         }
 585
 586         return ERROR_OK;
 587 }
 588
 589 static int kinetis_write(struct flash_bank *bank, uint8_t *buffer,
 590                          uint32_t offset, uint32_t count)
 591 {
 592         unsigned int i, result, fallback = 0;
 593         uint8_t buf[8];
 594         uint32_t wc;
 595         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 596         uint8_t *new_buffer = NULL;
 597
 598         if (bank->target->state != TARGET_HALTED) {
 599                 LOG_ERROR("Target not halted");
 600                 return ERROR_TARGET_NOT_HALTED;
 601         }
 602
 603         if (kinfo->klxx) {
 604                 /* fallback to longword write */
 605                 fallback = 1;
 606                 LOG_WARNING("Kinetis L Series supports Program Longword execution only.");
 607                 LOG_DEBUG("flash write into PFLASH @08%" PRIX32, offset);
 608
 609         } else if (kinfo->flash_class == FC_FLEX_NVM) {
 610                 uint8_t ftfx_fstat;
 611
 612                 LOG_DEBUG("flash write into FlexNVM @%08" PRIX32, offset);
 613
 614                 /* make flex ram available */
 615                 result = kinetis_ftfx_command(bank, FTFx_CMD_SETFLEXRAM, 0x00ff0000, 0, 0, 0, 0,  0, 0, 0, 0,  &ftfx_fstat);
 616
 617                 if (result != ERROR_OK)
 618                         return ERROR_FLASH_OPERATION_FAILED;
 619
 620                 /* check if ram ready */
 621                 result = target_read_memory(bank->target, FTFx_FCNFG, 1, 1, buf);
 622
 623                 if (result != ERROR_OK)
 624                         return result;
 625
 626                 if (!(buf[0] & (1 << 1))) {
 627                         /* fallback to longword write */
 628                         fallback = 1;
 629
 630                         LOG_WARNING("ram not ready, fallback to slow longword write (FCNFG: %02X)", buf[0]);
 631                 }
 632         } else {
 633                 LOG_DEBUG("flash write into PFLASH @08%" PRIX32, offset);
 634         }
 635
 636
 637         /* program section command */
 638         if (fallback == 0) {
 639                 /*
 640                  * Kinetis uses different terms for the granularity of
 641                  * sector writes, e.g. "phrase" or "128 bits".  We use
 642                  * the generic term "chunk". The largest possible
 643                  * Kinetis "chunk" is 16 bytes (128 bits).
 644                  */
 645                 unsigned prog_section_chunk_bytes = kinfo->sector_size >> 8;
 646                 /* assume the NVM sector size is half the FlexRAM size */
 647                 unsigned prog_size_bytes = MIN(kinfo->sector_size,
 648                                 kinetis_flash_params[kinfo->granularity].nvm_sector_size_bytes);
 649                 for (i = 0; i < count; i += prog_size_bytes) {
 650                         uint8_t residual_buffer[16];
 651                         uint8_t ftfx_fstat;
 652                         uint32_t section_count = prog_size_bytes / prog_section_chunk_bytes;
 653                         uint32_t residual_wc = 0;
 654
 655                         /*
 656                          * Assume the word count covers an entire
 657                          * sector.
 658                          */
 659                         wc = prog_size_bytes / 4;
 660
 661                         /*
 662                          * If bytes to be programmed are less than the
 663                          * full sector, then determine the number of
 664                          * full-words to program, and put together the
 665                          * residual buffer so that a full "section"
 666                          * may always be programmed.
 667                          */
 668                         if ((count - i) < prog_size_bytes) {
 669                                 /* number of bytes to program beyond full section */
 670                                 unsigned residual_bc = (count-i) % prog_section_chunk_bytes;
 671
 672                                 /* number of complete words to copy directly from buffer */
 673                                 wc = (count - i) / 4;
 674
 675                                 /* number of total sections to write, including residual */
 676                                 section_count = DIV_ROUND_UP((count-i), prog_section_chunk_bytes);
 677
 678                                 /* any residual bytes delivers a whole residual section */
 679                                 residual_wc = (residual_bc ? prog_section_chunk_bytes : 0)/4;
 680
 681                                 /* clear residual buffer then populate residual bytes */
 682                                 (void) memset(residual_buffer, 0xff, prog_section_chunk_bytes);
 683                                 (void) memcpy(residual_buffer, &buffer[i+4*wc], residual_bc);
 684                         }
 685
 686                         LOG_DEBUG("write section @ %08" PRIX32 " with length %" PRIu32 " bytes",
 687                                   offset + i, (uint32_t)wc*4);
 688
 689                         /* write data to flexram as whole-words */
 690                         result = target_write_memory(bank->target, FLEXRAM, 4, wc,
 691                                         buffer + i);
 692
 693                         if (result != ERROR_OK) {
 694                                 LOG_ERROR("target_write_memory failed");
 695                                 return result;
 696                         }
 697
 698                         /* write the residual words to the flexram */
 699                         if (residual_wc) {
 700                                 result = target_write_memory(bank->target,
 701                                                 FLEXRAM+4*wc,
 702                                                 4, residual_wc,
 703                                                 residual_buffer);
 704
 705                                 if (result != ERROR_OK) {
 706                                         LOG_ERROR("target_write_memory failed");
 707                                         return result;
 708                                 }
 709                         }
 710
 711                         /* execute section-write command */
 712                         result = kinetis_ftfx_command(bank, FTFx_CMD_SECTWRITE, bank->base + offset + i,
 713                                         section_count>>8, section_count, 0, 0,
 714                                         0, 0, 0, 0,  &ftfx_fstat);
 715
 716                         if (result != ERROR_OK)
 717                                 return ERROR_FLASH_OPERATION_FAILED;
 718                 }
 719         }
 720         /* program longword command, not supported in "SF3" devices */
 721         else if ((kinfo->granularity != 3) || (kinfo->klxx)) {
 722
 723                 if (count & 0x3) {
 724                         uint32_t old_count = count;
 725                         count = (old_count | 3) + 1;
 726                         new_buffer = malloc(count);
 727                         if (new_buffer == NULL) {
 728                                 LOG_ERROR("odd number of bytes to write and no memory "
 729                                         "for padding buffer");
 730                                 return ERROR_FAIL;
 731                         }
 732                         LOG_INFO("odd number of bytes to write (%" PRIu32 "), extending to %" PRIu32 " "
 733                                 "and padding with 0xff", old_count, count);
 734                         memset(new_buffer, 0xff, count);
 735                         buffer = memcpy(new_buffer, buffer, old_count);
 736                 }
 737
 738                 uint32_t words_remaining = count / 4;
 739
 740                 /* try using a block write */
 741                 int retval = kinetis_write_block(bank, buffer, offset, words_remaining);
 742
 743                 if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
 744                         /* if block write failed (no sufficient working area),
 745                          * we use normal (slow) single word accesses */
 746                         LOG_WARNING("couldn't use block writes, falling back to single "
 747                                 "memory accesses");
 748
 749                         for (i = 0; i < count; i += 4) {
 750                                 uint8_t ftfx_fstat;
 751
 752                                 LOG_DEBUG("write longword @ %08" PRIX32, (uint32_t)(offset + i));
 753
 754                                 uint8_t padding[4] = {0xff, 0xff, 0xff, 0xff};
 755                                 memcpy(padding, buffer + i, MIN(4, count-i));
 756
 757                                 result = kinetis_ftfx_command(bank, FTFx_CMD_LWORDPROG, bank->base + offset + i,
 758                                                 padding[3], padding[2], padding[1], padding[0],
 759                                                 0, 0, 0, 0,  &ftfx_fstat);
 760
 761                                 if (result != ERROR_OK)
 762                                         return ERROR_FLASH_OPERATION_FAILED;
 763                         }
 764                 }
 765
 766         } else {
 767                 LOG_ERROR("Flash write strategy not implemented");
 768                 return ERROR_FLASH_OPERATION_FAILED;
 769         }
 770
 771         return ERROR_OK;
 772 }
 773
 774 static int kinetis_read_part_info(struct flash_bank *bank)
 775 {
 776         int result, i;
 777         uint32_t offset = 0;
 778         uint8_t fcfg1_nvmsize, fcfg1_pfsize, fcfg1_eesize, fcfg2_pflsh;
 779         uint32_t nvm_size = 0, pf_size = 0, ee_size = 0;
 780         unsigned granularity, num_blocks = 0, num_pflash_blocks = 0, num_nvm_blocks = 0,
 781                 first_nvm_bank = 0, reassign = 0;
 782         struct target *target = bank->target;
 783         struct kinetis_flash_bank *kinfo = bank->driver_priv;
 784
 785         result = target_read_u32(target, SIM_SDID, &kinfo->sim_sdid);
 786         if (result != ERROR_OK)
 787                 return result;
 788
 789         kinfo->klxx = 0;
 790
 791         /* K-series MCU? */
 792         if ((kinfo->sim_sdid & (~KINETIS_SDID_K_SERIES_MASK)) == 0) {
 793                 uint32_t mcu_type = kinfo->sim_sdid & KINETIS_K_SDID_TYPE_MASK;
 794
 795                 switch (mcu_type) {
 796                 case KINETIS_K_SDID_K10_M50:
 797                 case KINETIS_K_SDID_K20_M50:
 798                         /* 1kB sectors */
 799                         granularity = 0;
 800                         break;
 801                 case KINETIS_K_SDID_K10_M72:
 802                 case KINETIS_K_SDID_K20_M72:
 803                 case KINETIS_K_SDID_K30_M72:
 804                 case KINETIS_K_SDID_K30_M100:
 805                 case KINETIS_K_SDID_K40_M72:
 806                 case KINETIS_K_SDID_K40_M100:
 807                 case KINETIS_K_SDID_K50_M72:
 808                         /* 2kB sectors, 1kB FlexNVM sectors */
 809                         granularity = 1;
 810                         break;
 811                 case KINETIS_K_SDID_K10_M100:
 812                 case KINETIS_K_SDID_K20_M100:
 813                 case KINETIS_K_SDID_K11:
 814                 case KINETIS_K_SDID_K12:
 815                 case KINETIS_K_SDID_K21_M50:
 816                 case KINETIS_K_SDID_K22_M50:
 817                 case KINETIS_K_SDID_K51_M72:
 818                 case KINETIS_K_SDID_K53:
 819                 case KINETIS_K_SDID_K60_M100:
 820                         /* 2kB sectors */
 821                         granularity = 2;
 822                         break;
 823                 case KINETIS_K_SDID_K10_M120:
 824                 case KINETIS_K_SDID_K20_M120:
 825                 case KINETIS_K_SDID_K21_M120:
 826                 case KINETIS_K_SDID_K22_M120:
 827                 case KINETIS_K_SDID_K60_M150:
 828                 case KINETIS_K_SDID_K70_M150:
 829                         /* 4kB sectors */
 830                         granularity = 3;
 831                         break;
 832                 default:
 833                         LOG_ERROR("Unsupported K-family FAMID");
 834                         return ERROR_FLASH_OPER_UNSUPPORTED;
 835                 }
 836         }
 837         /* KL-series? */
 838         else if ((kinfo->sim_sdid & KINETIS_KL_SDID_SERIESID_MASK) == KINETIS_KL_SDID_SERIESID_KL) {
 839                 kinfo->klxx = 1;
 840                 granularity = 0;
 841         } else {
 842                 LOG_ERROR("MCU is unsupported");
 843                 return ERROR_FLASH_OPER_UNSUPPORTED;
 844         }
 845
 846         result = target_read_u32(target, SIM_FCFG1, &kinfo->sim_fcfg1);
 847         if (result != ERROR_OK)
 848                 return result;
 849
 850         result = target_read_u32(target, SIM_FCFG2, &kinfo->sim_fcfg2);
 851         if (result != ERROR_OK)
 852                 return result;
 853         fcfg2_pflsh = (kinfo->sim_fcfg2 >> 23) & 0x01;
 854
 855         LOG_DEBUG("SDID: 0x%08" PRIX32 " FCFG1: 0x%08" PRIX32 " FCFG2: 0x%08" PRIX32, kinfo->sim_sdid,
 856                         kinfo->sim_fcfg1, kinfo->sim_fcfg2);
 857
 858         fcfg1_nvmsize = (uint8_t)((kinfo->sim_fcfg1 >> 28) & 0x0f);
 859         fcfg1_pfsize = (uint8_t)((kinfo->sim_fcfg1 >> 24) & 0x0f);
 860         fcfg1_eesize = (uint8_t)((kinfo->sim_fcfg1 >> 16) & 0x0f);
 861
 862         /* when the PFLSH bit is set, there is no FlexNVM/FlexRAM */
 863         if (!fcfg2_pflsh) {
 864                 switch (fcfg1_nvmsize) {
 865                 case 0x03:
 866                 case 0x07:
 867                 case 0x09:
 868                 case 0x0b:
 869                         nvm_size = 1 << (14 + (fcfg1_nvmsize >> 1));
 870                         break;
 871                 case 0x0f:
 872                         if (granularity == 3)
 873                                 nvm_size = 512<<10;
 874                         else
 875                                 nvm_size = 256<<10;
 876                         break;
 877                 default:
 878                         nvm_size = 0;
 879                         break;
 880                 }
 881
 882                 switch (fcfg1_eesize) {
 883                 case 0x00:
 884                 case 0x01:
 885                 case 0x02:
 886                 case 0x03:
 887                 case 0x04:
 888                 case 0x05:
 889                 case 0x06:
 890                 case 0x07:
 891                 case 0x08:
 892                 case 0x09:
 893                         ee_size = (16 << (10 - fcfg1_eesize));
 894                         break;
 895                 default:
 896                         ee_size = 0;
 897                         break;
 898                 }
 899         }
 900
 901         switch (fcfg1_pfsize) {
 902         case 0x03:
 903         case 0x05:
 904         case 0x07:
 905         case 0x09:
 906         case 0x0b:
 907         case 0x0d:
 908                 pf_size = 1 << (14 + (fcfg1_pfsize >> 1));
 909                 break;
 910         case 0x0f:
 911                 if (granularity == 3)
 912                         pf_size = 1024<<10;
 913                 else if (fcfg2_pflsh)
 914                         pf_size = 512<<10;
 915                 else
 916                         pf_size = 256<<10;
 917                 break;
 918         default:
 919                 pf_size = 0;
 920                 break;
 921         }
 922
 923         LOG_DEBUG("FlexNVM: %" PRIu32 " PFlash: %" PRIu32 " FlexRAM: %" PRIu32 " PFLSH: %d",
 924                   nvm_size, pf_size, ee_size, fcfg2_pflsh);
 925         if (kinfo->klxx)
 926                 num_blocks = 1;
 927         else
 928                 num_blocks = kinetis_flash_params[granularity].num_blocks;
 929
 930         num_pflash_blocks = num_blocks / (2 - fcfg2_pflsh);
 931         first_nvm_bank = num_pflash_blocks;
 932         num_nvm_blocks = num_blocks - num_pflash_blocks;
 933
 934         LOG_DEBUG("%d blocks total: %d PFlash, %d FlexNVM",
 935                         num_blocks, num_pflash_blocks, num_nvm_blocks);
 936
 937         /*
 938          * If the flash class is already assigned, verify the
 939          * parameters.
 940          */
 941         if (kinfo->flash_class != FC_AUTO) {
 942                 if (kinfo->bank_ordinal != (unsigned) bank->bank_number) {
 943                         LOG_WARNING("Flash ordinal/bank number mismatch");
 944                         reassign = 1;
 945                 } else if (kinfo->granularity != granularity) {
 946                         LOG_WARNING("Flash granularity mismatch");
 947                         reassign = 1;
 948                 } else {
 949                         switch (kinfo->flash_class) {
 950                         case FC_PFLASH:
 951                                 if (kinfo->bank_ordinal >= first_nvm_bank) {
 952                                         LOG_WARNING("Class mismatch, bank %d is not PFlash", bank->bank_number);
 953                                         reassign = 1;
 954                                 } else if (bank->size != (pf_size / num_pflash_blocks)) {
 955                                         LOG_WARNING("PFlash size mismatch");
 956                                         reassign = 1;
 957                                 } else if (bank->base !=
 958                                          (0x00000000 + bank->size * kinfo->bank_ordinal)) {
 959                                         LOG_WARNING("PFlash address range mismatch");
 960                                         reassign = 1;
 961                                 } else if (kinfo->sector_size !=
 962                                                 kinetis_flash_params[granularity].pflash_sector_size_bytes) {
 963                                         LOG_WARNING("PFlash sector size mismatch");
 964                                         reassign = 1;
 965                                 } else {
 966                                         LOG_DEBUG("PFlash bank %d already configured okay",
 967                                                   kinfo->bank_ordinal);
 968                                 }
 969                                 break;
 970                         case FC_FLEX_NVM:
 971                                 if ((kinfo->bank_ordinal >= num_blocks) ||
 972                                                 (kinfo->bank_ordinal < first_nvm_bank)) {
 973                                         LOG_WARNING("Class mismatch, bank %d is not FlexNVM", bank->bank_number);
 974                                         reassign = 1;
 975                                 } else if (bank->size != (nvm_size / num_nvm_blocks)) {
 976                                         LOG_WARNING("FlexNVM size mismatch");
 977                                         reassign = 1;
 978                                 } else if (bank->base !=
 979                                                 (0x10000000 + bank->size * kinfo->bank_ordinal)) {
 980                                         LOG_WARNING("FlexNVM address range mismatch");
 981                                         reassign = 1;
 982                                 } else if (kinfo->sector_size !=
 983                                                 kinetis_flash_params[granularity].nvm_sector_size_bytes) {
 984                                         LOG_WARNING("FlexNVM sector size mismatch");
 985                                         reassign = 1;
 986                                 } else {
 987                                         LOG_DEBUG("FlexNVM bank %d already configured okay",
 988                                                   kinfo->bank_ordinal);
 989                                 }
 990                                 break;
 991                         case FC_FLEX_RAM:
 992                                 if (kinfo->bank_ordinal != num_blocks) {
 993                                         LOG_WARNING("Class mismatch, bank %d is not FlexRAM", bank->bank_number);
 994                                         reassign = 1;
 995                                 } else if (bank->size != ee_size) {
 996                                         LOG_WARNING("FlexRAM size mismatch");
 997                                         reassign = 1;
 998                                 } else if (bank->base != FLEXRAM) {
 999                                         LOG_WARNING("FlexRAM address mismatch");
1000                                         reassign = 1;
1001                                 } else if (kinfo->sector_size !=
1002                                          kinetis_flash_params[granularity].nvm_sector_size_bytes) {
1003                                         LOG_WARNING("FlexRAM sector size mismatch");
1004                                         reassign = 1;
1005                                 } else {
1006                                         LOG_DEBUG("FlexRAM bank %d already configured okay", kinfo->bank_ordinal);
1007                                 }
1008                                 break;
1009
1010                         default:
1011                                 LOG_WARNING("Unknown or inconsistent flash class");
1012                                 reassign = 1;
1013                                 break;
1014                         }
1015                 }
1016         } else {
1017                 LOG_INFO("Probing flash info for bank %d", bank->bank_number);
1018                 reassign = 1;
1019         }
1020
1021         if (!reassign)
1022                 return ERROR_OK;
1023
1024         kinfo->granularity = granularity;
1025
1026         if ((unsigned)bank->bank_number < num_pflash_blocks) {
1027                 /* pflash, banks start at address zero */
1028                 kinfo->flash_class = FC_PFLASH;
1029                 bank->size = (pf_size / num_pflash_blocks);
1030                 bank->base = 0x00000000 + bank->size * bank->bank_number;
1031                 kinfo->sector_size = kinetis_flash_params[granularity].pflash_sector_size_bytes;
1032                 kinfo->protection_size = pf_size / 32;
1033         } else if ((unsigned)bank->bank_number < num_blocks) {
1034                 /* nvm, banks start at address 0x10000000 */
1035                 kinfo->flash_class = FC_FLEX_NVM;
1036                 bank->size = (nvm_size / num_nvm_blocks);
1037                 bank->base = 0x10000000 + bank->size * (bank->bank_number - first_nvm_bank);
1038                 kinfo->sector_size = kinetis_flash_params[granularity].nvm_sector_size_bytes;
1039                 kinfo->protection_size = 0; /* FIXME: TODO: depends on DEPART bits, chip */
1040         } else if ((unsigned)bank->bank_number == num_blocks) {
1041                 LOG_ERROR("FlexRAM support not yet implemented");
1042                 return ERROR_FLASH_OPER_UNSUPPORTED;
1043         } else {
1044                 LOG_ERROR("Cannot determine parameters for bank %d, only %d banks on device",
1045                                 bank->bank_number, num_blocks);
1046                 return ERROR_FLASH_BANK_INVALID;
1047         }
1048
1049         if (bank->sectors) {
1050                 free(bank->sectors);
1051                 bank->sectors = NULL;
1052         }
1053
1054         bank->num_sectors = bank->size / kinfo->sector_size;
1055         assert(bank->num_sectors > 0);
1056         bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
1057
1058         for (i = 0; i < bank->num_sectors; i++) {
1059                 bank->sectors[i].offset = offset;
1060                 bank->sectors[i].size = kinfo->sector_size;
1061                 offset += kinfo->sector_size;
1062                 bank->sectors[i].is_erased = -1;
1063                 bank->sectors[i].is_protected = 1;
1064         }
1065
1066         return ERROR_OK;
1067 }
1068
1069 static int kinetis_probe(struct flash_bank *bank)
1070 {
1071         if (bank->target->state != TARGET_HALTED) {
1072                 LOG_WARNING("Cannot communicate... target not halted.");
1073                 return ERROR_TARGET_NOT_HALTED;
1074         }
1075
1076         return kinetis_read_part_info(bank);
1077 }
1078
1079 static int kinetis_auto_probe(struct flash_bank *bank)
1080 {
1081         struct kinetis_flash_bank *kinfo = bank->driver_priv;
1082
1083         if (kinfo->sim_sdid)
1084                 return ERROR_OK;
1085
1086         return kinetis_probe(bank);
1087 }
1088
1089 static int kinetis_info(struct flash_bank *bank, char *buf, int buf_size)
1090 {
1091         const char *bank_class_names[] = {
1092                 "(ANY)", "PFlash", "FlexNVM", "FlexRAM"
1093         };
1094
1095         struct kinetis_flash_bank *kinfo = bank->driver_priv;
1096
1097         (void) snprintf(buf, buf_size,
1098                         "%s driver for %s flash bank %s at 0x%8.8" PRIx32 "",
1099                         bank->driver->name, bank_class_names[kinfo->flash_class],
1100                         bank->name, bank->base);
1101
1102         return ERROR_OK;
1103 }
1104
1105 static int kinetis_blank_check(struct flash_bank *bank)
1106 {
1107         struct kinetis_flash_bank *kinfo = bank->driver_priv;
1108
1109         if (bank->target->state != TARGET_HALTED) {
1110                 LOG_ERROR("Target not halted");
1111                 return ERROR_TARGET_NOT_HALTED;
1112         }
1113
1114         if (kinfo->flash_class == FC_PFLASH) {
1115                 int result;
1116                 uint8_t ftfx_fstat;
1117
1118                 /* check if whole bank is blank */
1119                 result = kinetis_ftfx_command(bank, FTFx_CMD_BLOCKSTAT, bank->base, 0, 0, 0, 0,  0, 0, 0, 0, &ftfx_fstat);
1120
1121                 if (result != ERROR_OK)
1122                         return result;
1123
1124                 if (ftfx_fstat & 0x01) {
1125                         /* the whole bank is not erased, check sector-by-sector */
1126                         int i;
1127                         for (i = 0; i < bank->num_sectors; i++) {
1128                                 /* normal margin */
1129                                 result = kinetis_ftfx_command(bank, FTFx_CMD_SECTSTAT, bank->base + bank->sectors[i].offset,
1130                                                 1, 0, 0, 0,  0, 0, 0, 0, &ftfx_fstat);
1131
1132                                 if (result == ERROR_OK) {
1133                                         bank->sectors[i].is_erased = !(ftfx_fstat & 0x01);
1134                                 } else {
1135                                         LOG_DEBUG("Ignoring errored PFlash sector blank-check");
1136                                         bank->sectors[i].is_erased = -1;
1137                                 }
1138                         }
1139                 } else {
1140                         /* the whole bank is erased, update all sectors */
1141                         int i;
1142                         for (i = 0; i < bank->num_sectors; i++)
1143                                 bank->sectors[i].is_erased = 1;
1144                 }
1145         } else {
1146                 LOG_WARNING("kinetis_blank_check not supported yet for FlexNVM");
1147                 return ERROR_FLASH_OPERATION_FAILED;
1148         }
1149
1150         return ERROR_OK;
1151 }
1152
1153 struct flash_driver kinetis_flash = {
1154         .name = "kinetis",
1155         .flash_bank_command = kinetis_flash_bank_command,
1156         .erase = kinetis_erase,
1157         .protect = kinetis_protect,
1158         .write = kinetis_write,
1159         .read = default_flash_read,
1160         .probe = kinetis_probe,
1161         .auto_probe = kinetis_auto_probe,
1162         .erase_check = kinetis_blank_check,
1163         .protect_check = kinetis_protect_check,
1164         .info = kinetis_info,
1165 };