1 /***************************************************************************
2 * Copyright (C) 2011 by Mathias Kuester *
5 * Copyright (C) 2011 sleep(5) ltd *
6 * tomas@sleepfive.com *
8 * Copyright (C) 2012 by Christopher D. Kilgour *
9 * techie at whiterocker.com *
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. *
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. *
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 ***************************************************************************/
32 #include "helper/binarybuffer.h"
35 * Implementation Notes
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.
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
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
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.
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
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.
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.
88 unsigned pflash_sector_size_bytes
;
89 unsigned nvm_sector_size_bytes
;
91 } kinetis_flash_params
[4] = {
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
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
116 struct kinetis_flash_bank
{
117 unsigned granularity
;
118 unsigned bank_ordinal
;
119 uint32_t sector_size
;
120 uint32_t protection_size
;
134 FLASH_BANK_COMMAND_HANDLER(kinetis_flash_bank_command
)
136 struct kinetis_flash_bank
*bank_info
;
139 return ERROR_COMMAND_SYNTAX_ERROR
;
141 LOG_INFO("add flash_bank kinetis %s", bank
->name
);
143 bank_info
= malloc(sizeof(struct kinetis_flash_bank
));
145 memset(bank_info
, 0, sizeof(struct kinetis_flash_bank
));
147 bank
->driver_priv
= bank_info
;
152 static int kinetis_protect(struct flash_bank
*bank
, int set
, int first
,
155 LOG_WARNING("kinetis_protect not supported yet");
158 if (bank
->target
->state
!= TARGET_HALTED
) {
159 LOG_ERROR("Target not halted");
160 return ERROR_TARGET_NOT_HALTED
;
163 return ERROR_FLASH_BANK_INVALID
;
166 static int kinetis_protect_check(struct flash_bank
*bank
)
168 struct kinetis_flash_bank
*kinfo
= bank
->driver_priv
;
170 if (bank
->target
->state
!= TARGET_HALTED
) {
171 LOG_ERROR("Target not halted");
172 return ERROR_TARGET_NOT_HALTED
;
175 if (kinfo
->flash_class
== FC_PFLASH
) {
178 uint32_t fprot
, psec
;
181 /* read protection register */
182 result
= target_read_memory(bank
->target
, FTFx_FPROT3
, 1, 4, buffer
);
184 if (result
!= ERROR_OK
)
187 fprot
= target_buffer_get_u32(bank
->target
, buffer
);
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.
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;
199 bank
->sectors
[i
].is_protected
= 1;
201 psec
+= bank
->sectors
[i
].size
;
203 if (psec
>= kinfo
->protection_size
) {
209 LOG_ERROR("Protection checks for FlexNVM not yet supported");
210 return ERROR_FLASH_BANK_INVALID
;
216 static int kinetis_ftfx_command(struct flash_bank
*bank
, uint8_t fcmd
, uint32_t faddr
,
217 uint8_t fccob4
, uint8_t fccob5
, uint8_t fccob6
, uint8_t fccob7
,
218 uint8_t fccob8
, uint8_t fccob9
, uint8_t fccoba
, uint8_t fccobb
,
221 uint8_t command
[12] = {faddr
& 0xff, (faddr
>> 8) & 0xff, (faddr
>> 16) & 0xff, fcmd
,
222 fccob7
, fccob6
, fccob5
, fccob4
,
223 fccobb
, fccoba
, fccob9
, fccob8
};
228 for (i
= 0; i
< 50; i
++) {
230 target_read_memory(bank
->target
, FTFx_FSTAT
, 1, 1, &buffer
);
232 if (result
!= ERROR_OK
)
241 if (buffer
!= 0x80) {
242 /* reset error flags */
245 target_write_memory(bank
->target
, FTFx_FSTAT
, 1, 1, &buffer
);
246 if (result
!= ERROR_OK
)
250 result
= target_write_memory(bank
->target
, FTFx_FCCOB3
, 4, 3, command
);
252 if (result
!= ERROR_OK
)
257 result
= target_write_memory(bank
->target
, FTFx_FSTAT
, 1, 1, &buffer
);
258 if (result
!= ERROR_OK
)
262 for (i
= 0; i
< 50; i
++) {
264 target_read_memory(bank
->target
, FTFx_FSTAT
, 1, 1, ftfx_fstat
);
266 if (result
!= ERROR_OK
)
269 if (*ftfx_fstat
& 0x80)
273 if ((*ftfx_fstat
& 0xf0) != 0x80) {
275 ("ftfx command failed FSTAT: %02X FCCOB: %02X%02X%02X%02X %02X%02X%02X%02X %02X%02X%02X%02X",
276 *ftfx_fstat
, command
[3], command
[2], command
[1], command
[0],
277 command
[7], command
[6], command
[5], command
[4],
278 command
[11], command
[10], command
[9], command
[8]);
279 return ERROR_FLASH_OPERATION_FAILED
;
285 static int kinetis_erase(struct flash_bank
*bank
, int first
, int last
)
289 if (bank
->target
->state
!= TARGET_HALTED
) {
290 LOG_ERROR("Target not halted");
291 return ERROR_TARGET_NOT_HALTED
;
294 if ((first
> bank
->num_sectors
) || (last
> bank
->num_sectors
))
295 return ERROR_FLASH_OPERATION_FAILED
;
298 * FIXME: TODO: use the 'Erase Flash Block' command if the
299 * requested erase is PFlash or NVM and encompasses the entire
300 * block. Should be quicker.
302 for (i
= first
; i
<= last
; i
++) {
304 /* set command and sector address */
305 result
= kinetis_ftfx_command(bank
, FTFx_CMD_SECTERASE
, bank
->base
+ bank
->sectors
[i
].offset
,
306 0, 0, 0, 0, 0, 0, 0, 0, &ftfx_fstat
);
308 if (result
!= ERROR_OK
) {
309 LOG_WARNING("erase sector %d failed", i
);
310 return ERROR_FLASH_OPERATION_FAILED
;
313 bank
->sectors
[i
].is_erased
= 1;
318 ("flash configuration field erased, please reset the device");
324 static int kinetis_write(struct flash_bank
*bank
, uint8_t *buffer
,
325 uint32_t offset
, uint32_t count
)
327 unsigned int i
, result
, fallback
= 0;
330 struct kinetis_flash_bank
*kinfo
= bank
->driver_priv
;
332 if (bank
->target
->state
!= TARGET_HALTED
) {
333 LOG_ERROR("Target not halted");
334 return ERROR_TARGET_NOT_HALTED
;
337 if (kinfo
->flash_class
== FC_FLEX_NVM
) {
340 LOG_DEBUG("flash write into FlexNVM @%08X", offset
);
342 /* make flex ram available */
343 result
= kinetis_ftfx_command(bank
, FTFx_CMD_SETFLEXRAM
, 0x00ff0000, 0, 0, 0, 0, 0, 0, 0, 0, &ftfx_fstat
);
345 if (result
!= ERROR_OK
)
346 return ERROR_FLASH_OPERATION_FAILED
;
348 /* check if ram ready */
349 result
= target_read_memory(bank
->target
, FTFx_FCNFG
, 1, 1, buf
);
351 if (result
!= ERROR_OK
)
354 if (!(buf
[0] & (1 << 1))) {
355 /* fallback to longword write */
358 LOG_WARNING("ram not ready, fallback to slow longword write (FCNFG: %02X)",
362 LOG_DEBUG("flash write into PFLASH @08%X", offset
);
366 /* program section command */
369 * Kinetis uses different terms for the granularity of
370 * sector writes, e.g. "phrase" or "128 bits". We use
371 * the generic term "chunk". The largest possible
372 * Kinetis "chunk" is 16 bytes (128 bits).
374 unsigned prog_section_chunk_bytes
= kinfo
->sector_size
>> 8;
375 /* assume the NVM sector size is half the FlexRAM size */
376 unsigned prog_size_bytes
= MIN(kinfo
->sector_size
,
377 kinetis_flash_params
[kinfo
->granularity
].nvm_sector_size_bytes
);
378 for (i
= 0; i
< count
; i
+= prog_size_bytes
) {
379 uint8_t residual_buffer
[16];
381 uint32_t section_count
= prog_size_bytes
/ prog_section_chunk_bytes
;
382 uint32_t residual_wc
= 0;
385 * Assume the word count covers an entire
388 wc
= prog_size_bytes
/ 4;
391 * If bytes to be programmed are less than the
392 * full sector, then determine the number of
393 * full-words to program, and put together the
394 * residual buffer so that a full "section"
395 * may always be programmed.
397 if ((count
- i
) < prog_size_bytes
) {
398 /* number of bytes to program beyond full section */
399 unsigned residual_bc
= (count
-i
) % prog_section_chunk_bytes
;
401 /* number of complete words to copy directly from buffer */
402 wc
= (count
- i
) / 4;
404 /* number of total sections to write, including residual */
405 section_count
= DIV_ROUND_UP((count
-i
), prog_section_chunk_bytes
);
407 /* any residual bytes delivers a whole residual section */
408 residual_wc
= (residual_bc
? prog_section_chunk_bytes
: 0)/4;
410 /* clear residual buffer then populate residual bytes */
411 (void) memset(residual_buffer
, 0xff, prog_section_chunk_bytes
);
412 (void) memcpy(residual_buffer
, &buffer
[i
+4*wc
], residual_bc
);
415 LOG_DEBUG("write section @ %08X with length %d bytes",
418 /* write data to flexram as whole-words */
419 result
= target_write_memory(bank
->target
, FLEXRAM
, 4, wc
,
422 if (result
!= ERROR_OK
) {
423 LOG_ERROR("target_write_memory failed");
427 /* write the residual words to the flexram */
429 result
= target_write_memory(bank
->target
,
434 if (result
!= ERROR_OK
) {
435 LOG_ERROR("target_write_memory failed");
440 /* execute section-write command */
441 result
= kinetis_ftfx_command(bank
, FTFx_CMD_SECTWRITE
, bank
->base
+ offset
+ i
,
442 section_count
>>8, section_count
, 0, 0,
443 0, 0, 0, 0, &ftfx_fstat
);
445 if (result
!= ERROR_OK
)
446 return ERROR_FLASH_OPERATION_FAILED
;
449 /* program longword command, not supported in "SF3" devices */
450 else if (kinfo
->granularity
!= 3) {
451 for (i
= 0; i
< count
; i
+= 4) {
454 LOG_DEBUG("write longword @ %08X", offset
+ i
);
456 uint8_t padding
[4] = {0xff, 0xff, 0xff, 0xff};
457 memcpy(padding
, buffer
+ i
, MIN(4, count
-i
));
458 result
= kinetis_ftfx_command(bank
, FTFx_CMD_LWORDPROG
, bank
->base
+ offset
+ i
,
459 padding
[3], padding
[2], padding
[1], padding
[0],
460 0, 0, 0, 0, &ftfx_fstat
);
462 if (result
!= ERROR_OK
)
463 return ERROR_FLASH_OPERATION_FAILED
;
466 LOG_ERROR("Flash write strategy not implemented");
467 return ERROR_FLASH_OPERATION_FAILED
;
473 static int kinetis_read_part_info(struct flash_bank
*bank
)
478 uint8_t fcfg1_nvmsize
, fcfg1_pfsize
, fcfg1_eesize
, fcfg2_pflsh
;
479 uint32_t nvm_size
= 0, pf_size
= 0, ee_size
= 0;
480 unsigned granularity
, num_blocks
= 0, num_pflash_blocks
= 0, num_nvm_blocks
= 0,
481 first_nvm_bank
= 0, reassign
= 0;
482 struct kinetis_flash_bank
*kinfo
= bank
->driver_priv
;
484 result
= target_read_memory(bank
->target
, SIM_SDID
, 1, 4, buf
);
485 if (result
!= ERROR_OK
)
487 kinfo
->sim_sdid
= target_buffer_get_u32(bank
->target
, buf
);
488 granularity
= (kinfo
->sim_sdid
>> 7) & 0x03;
490 result
= target_read_memory(bank
->target
, SIM_FCFG1
, 1, 4, buf
);
491 if (result
!= ERROR_OK
)
493 kinfo
->sim_fcfg1
= target_buffer_get_u32(bank
->target
, buf
);
495 result
= target_read_memory(bank
->target
, SIM_FCFG2
, 1, 4, buf
);
496 if (result
!= ERROR_OK
)
498 kinfo
->sim_fcfg2
= target_buffer_get_u32(bank
->target
, buf
);
499 fcfg2_pflsh
= (kinfo
->sim_fcfg2
>> 23) & 0x01;
501 LOG_DEBUG("SDID: %08X FCFG1: %08X FCFG2: %08X", kinfo
->sim_sdid
,
502 kinfo
->sim_fcfg1
, kinfo
->sim_fcfg2
);
504 fcfg1_nvmsize
= (uint8_t)((kinfo
->sim_fcfg1
>> 28) & 0x0f);
505 fcfg1_pfsize
= (uint8_t)((kinfo
->sim_fcfg1
>> 24) & 0x0f);
506 fcfg1_eesize
= (uint8_t)((kinfo
->sim_fcfg1
>> 16) & 0x0f);
508 /* when the PFLSH bit is set, there is no FlexNVM/FlexRAM */
510 switch (fcfg1_nvmsize
) {
515 nvm_size
= 1 << (14 + (fcfg1_nvmsize
>> 1));
518 if (granularity
== 3)
528 switch (fcfg1_eesize
) {
539 ee_size
= (16 << (10 - fcfg1_eesize
));
547 switch (fcfg1_pfsize
) {
554 pf_size
= 1 << (14 + (fcfg1_pfsize
>> 1));
557 if (granularity
== 3)
559 else if (fcfg2_pflsh
)
569 LOG_DEBUG("FlexNVM: %d PFlash: %d FlexRAM: %d PFLSH: %d",
570 nvm_size
, pf_size
, ee_size
, fcfg2_pflsh
);
572 num_blocks
= kinetis_flash_params
[granularity
].num_blocks
;
573 num_pflash_blocks
= num_blocks
/ (2 - fcfg2_pflsh
);
574 first_nvm_bank
= num_pflash_blocks
;
575 num_nvm_blocks
= num_blocks
- num_pflash_blocks
;
577 LOG_DEBUG("%d blocks total: %d PFlash, %d FlexNVM",
578 num_blocks
, num_pflash_blocks
, num_nvm_blocks
);
581 * If the flash class is already assigned, verify the
584 if (kinfo
->flash_class
!= FC_AUTO
) {
585 if (kinfo
->bank_ordinal
!= (unsigned) bank
->bank_number
) {
586 LOG_WARNING("Flash ordinal/bank number mismatch");
588 } else if (kinfo
->granularity
!= granularity
) {
589 LOG_WARNING("Flash granularity mismatch");
592 switch (kinfo
->flash_class
) {
594 if (kinfo
->bank_ordinal
>= first_nvm_bank
) {
595 LOG_WARNING("Class mismatch, bank %d is not PFlash",
598 } else if (bank
->size
!= (pf_size
/ num_pflash_blocks
)) {
599 LOG_WARNING("PFlash size mismatch");
601 } else if (bank
->base
!=
602 (0x00000000 + bank
->size
* kinfo
->bank_ordinal
)) {
603 LOG_WARNING("PFlash address range mismatch");
605 } else if (kinfo
->sector_size
!=
606 kinetis_flash_params
[granularity
].pflash_sector_size_bytes
) {
607 LOG_WARNING("PFlash sector size mismatch");
610 LOG_DEBUG("PFlash bank %d already configured okay",
611 kinfo
->bank_ordinal
);
615 if ((kinfo
->bank_ordinal
>= num_blocks
) ||
616 (kinfo
->bank_ordinal
< first_nvm_bank
)) {
617 LOG_WARNING("Class mismatch, bank %d is not FlexNVM",
620 } else if (bank
->size
!= (nvm_size
/ num_nvm_blocks
)) {
621 LOG_WARNING("FlexNVM size mismatch");
623 } else if (bank
->base
!=
624 (0x10000000 + bank
->size
* kinfo
->bank_ordinal
)) {
625 LOG_WARNING("FlexNVM address range mismatch");
627 } else if (kinfo
->sector_size
!=
628 kinetis_flash_params
[granularity
].nvm_sector_size_bytes
) {
629 LOG_WARNING("FlexNVM sector size mismatch");
632 LOG_DEBUG("FlexNVM bank %d already configured okay",
633 kinfo
->bank_ordinal
);
637 if (kinfo
->bank_ordinal
!= num_blocks
) {
638 LOG_WARNING("Class mismatch, bank %d is not FlexRAM",
641 } else if (bank
->size
!= ee_size
) {
642 LOG_WARNING("FlexRAM size mismatch");
644 } else if (bank
->base
!= FLEXRAM
) {
645 LOG_WARNING("FlexRAM address mismatch");
647 } else if (kinfo
->sector_size
!=
648 kinetis_flash_params
[granularity
].nvm_sector_size_bytes
) {
649 LOG_WARNING("FlexRAM sector size mismatch");
652 LOG_DEBUG("FlexRAM bank %d already configured okay",
653 kinfo
->bank_ordinal
);
658 LOG_WARNING("Unknown or inconsistent flash class");
664 LOG_INFO("Probing flash info for bank %d", bank
->bank_number
);
671 kinfo
->granularity
= granularity
;
673 if ((unsigned)bank
->bank_number
< num_pflash_blocks
) {
674 /* pflash, banks start at address zero */
675 kinfo
->flash_class
= FC_PFLASH
;
676 bank
->size
= (pf_size
/ num_pflash_blocks
);
677 bank
->base
= 0x00000000 + bank
->size
* bank
->bank_number
;
678 kinfo
->sector_size
= kinetis_flash_params
[granularity
].pflash_sector_size_bytes
;
679 kinfo
->protection_size
= pf_size
/ 32;
680 } else if ((unsigned)bank
->bank_number
< num_blocks
) {
681 /* nvm, banks start at address 0x10000000 */
682 kinfo
->flash_class
= FC_FLEX_NVM
;
683 bank
->size
= (nvm_size
/ num_nvm_blocks
);
684 bank
->base
= 0x10000000 + bank
->size
* (bank
->bank_number
- first_nvm_bank
);
685 kinfo
->sector_size
= kinetis_flash_params
[granularity
].nvm_sector_size_bytes
;
686 kinfo
->protection_size
= 0; /* FIXME: TODO: depends on DEPART bits, chip */
687 } else if ((unsigned)bank
->bank_number
== num_blocks
) {
688 LOG_ERROR("FlexRAM support not yet implemented");
689 return ERROR_FLASH_OPER_UNSUPPORTED
;
691 LOG_ERROR("Cannot determine parameters for bank %d, only %d banks on device",
692 bank
->bank_number
, num_blocks
);
693 return ERROR_FLASH_BANK_INVALID
;
698 bank
->sectors
= NULL
;
701 bank
->num_sectors
= bank
->size
/ kinfo
->sector_size
;
702 assert(bank
->num_sectors
> 0);
703 bank
->sectors
= malloc(sizeof(struct flash_sector
) * bank
->num_sectors
);
705 for (i
= 0; i
< bank
->num_sectors
; i
++) {
706 bank
->sectors
[i
].offset
= offset
;
707 bank
->sectors
[i
].size
= kinfo
->sector_size
;
708 offset
+= kinfo
->sector_size
;
709 bank
->sectors
[i
].is_erased
= -1;
710 bank
->sectors
[i
].is_protected
= 1;
716 static int kinetis_probe(struct flash_bank
*bank
)
718 if (bank
->target
->state
!= TARGET_HALTED
) {
719 LOG_WARNING("Cannot communicate... target not halted.");
720 return ERROR_TARGET_NOT_HALTED
;
723 return kinetis_read_part_info(bank
);
726 static int kinetis_auto_probe(struct flash_bank
*bank
)
728 struct kinetis_flash_bank
*kinfo
= bank
->driver_priv
;
733 return kinetis_probe(bank
);
736 static int kinetis_info(struct flash_bank
*bank
, char *buf
, int buf_size
)
738 const char *bank_class_names
[] = {
739 "(ANY)", "PFlash", "FlexNVM", "FlexRAM"
742 struct kinetis_flash_bank
*kinfo
= bank
->driver_priv
;
744 (void) snprintf(buf
, buf_size
,
745 "%s driver for %s flash bank %s at 0x%8.8" PRIx32
"",
746 bank
->driver
->name
, bank_class_names
[kinfo
->flash_class
],
747 bank
->name
, bank
->base
);
752 static int kinetis_blank_check(struct flash_bank
*bank
)
754 struct kinetis_flash_bank
*kinfo
= bank
->driver_priv
;
756 if (bank
->target
->state
!= TARGET_HALTED
) {
757 LOG_ERROR("Target not halted");
758 return ERROR_TARGET_NOT_HALTED
;
761 if (kinfo
->flash_class
== FC_PFLASH
) {
765 /* check if whole bank is blank */
766 result
= kinetis_ftfx_command(bank
, FTFx_CMD_BLOCKSTAT
, bank
->base
, 0, 0, 0, 0, 0, 0, 0, 0, &ftfx_fstat
);
768 if (result
!= ERROR_OK
)
771 if (ftfx_fstat
& 0x01) {
772 /* the whole bank is not erased, check sector-by-sector */
774 for (i
= 0; i
< bank
->num_sectors
; i
++) {
776 result
= kinetis_ftfx_command(bank
, FTFx_CMD_SECTSTAT
, bank
->base
+ bank
->sectors
[i
].offset
,
777 1, 0, 0, 0, 0, 0, 0, 0, &ftfx_fstat
);
779 if (result
== ERROR_OK
) {
780 bank
->sectors
[i
].is_erased
= !(ftfx_fstat
& 0x01);
782 LOG_DEBUG("Ignoring errored PFlash sector blank-check");
783 bank
->sectors
[i
].is_erased
= -1;
787 /* the whole bank is erased, update all sectors */
789 for (i
= 0; i
< bank
->num_sectors
; i
++)
790 bank
->sectors
[i
].is_erased
= 1;
793 LOG_WARNING("kinetis_blank_check not supported yet for FlexNVM");
794 return ERROR_FLASH_OPERATION_FAILED
;
800 static int kinetis_flash_read(struct flash_bank
*bank
,
801 uint8_t *buffer
, uint32_t offset
, uint32_t count
)
803 LOG_WARNING("kinetis_flash_read not supported yet");
805 if (bank
->target
->state
!= TARGET_HALTED
) {
806 LOG_ERROR("Target not halted");
807 return ERROR_TARGET_NOT_HALTED
;
810 return ERROR_FLASH_OPERATION_FAILED
;
813 struct flash_driver kinetis_flash
= {
815 .flash_bank_command
= kinetis_flash_bank_command
,
816 .erase
= kinetis_erase
,
817 .protect
= kinetis_protect
,
818 .write
= kinetis_write
,
819 .read
= kinetis_flash_read
,
820 .probe
= kinetis_probe
,
821 .auto_probe
= kinetis_auto_probe
,
822 .erase_check
= kinetis_blank_check
,
823 .protect_check
= kinetis_protect_check
,
824 .info
= kinetis_info
,