1 /***************************************************************************
2 * Copyright (C) 2006 by Magnus Lundin *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
21 /***************************************************************************
22 There are some things to notice
24 * AT91SAM7S64 is tested
25 * All AT91SAM7Sxx and AT91SAM7Xxx should work but is not tested
26 * All parameters are identified from onchip configuartion registers
28 * The flash controller handles erases automatically on a page (128/265 byte) basis
29 * Only an EraseAll command is supported by the controller
30 * Partial erases can be implemented in software by writing one 0xFFFFFFFF word to
31 * some location in every page in the region to be erased
33 * Lock regions (sectors) are 32 or 64 pages
35 ***************************************************************************/
40 #include "replacements.h"
47 #include "binarybuffer.h"
54 int at91sam7_register_commands(struct command_context_s *cmd_ctx);
55 int at91sam7_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
56 int at91sam7_erase(struct flash_bank_s *bank, int first, int last);
57 int at91sam7_protect(struct flash_bank_s *bank, int set, int first, int last);
58 int at91sam7_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
59 int at91sam7_probe(struct flash_bank_s *bank);
60 int at91sam7_erase_check(struct flash_bank_s *bank);
61 int at91sam7_protect_check(struct flash_bank_s *bank);
62 int at91sam7_info(struct flash_bank_s *bank, char *buf, int buf_size);
64 u32 at91sam7_get_flash_status(flash_bank_t *bank);
65 void at91sam7_set_flash_mode(flash_bank_t *bank,int mode);
66 u8 at91sam7_wait_status_busy(flash_bank_t *bank, int timeout);
67 int at91sam7_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
69 flash_driver_t at91sam7_flash =
72 .register_commands = at91sam7_register_commands,
73 .flash_bank_command = at91sam7_flash_bank_command,
74 .erase = at91sam7_erase,
75 .protect = at91sam7_protect,
76 .write = at91sam7_write,
77 .probe = at91sam7_probe,
78 .erase_check = at91sam7_erase_check,
79 .protect_check = at91sam7_protect_check,
84 char * EPROC[8]= {"Unknown","ARM946-E","ARM7TDMI","Unknown","ARM920T","ARM926EJ-S","Unknown","Unknown"};
100 0x200000, /* 2048K */
123 int at91sam7_register_commands(struct command_context_s *cmd_ctx)
125 command_t *at91sam7_cmd = register_command(cmd_ctx, NULL, "at91sam7", NULL, COMMAND_ANY, NULL);
126 register_command(cmd_ctx, at91sam7_cmd, "gpnvm", at91sam7_handle_gpnvm_command, COMMAND_EXEC,
127 "at91sam7 gpnvm <num> <bit> set|clear, set or clear at91sam7 gpnvm bit");
132 u32 at91sam7_get_flash_status(flash_bank_t *bank)
134 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
135 target_t *target = at91sam7_info->target;
138 target->type->read_memory(target, MC_FSR, 4, 1, (u8 *)&fsr);
143 /** Read clock configuration and set at91sam7_info->usec_clocks*/
144 void at91sam7_read_clock_info(flash_bank_t *bank)
146 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
147 target_t *target = at91sam7_info->target;
148 unsigned long mckr, mcfr, pllr, tmp, status, mainfreq;
149 unsigned int css, pres, mul, div;
151 /* Read main clock freqency register */
152 target->type->read_memory(target, CKGR_MCFR, 4, 1, (u8 *)&mcfr);
153 /* Read master clock register */
154 target->type->read_memory(target, PMC_MCKR, 4, 1, (u8 *)&mckr);
155 /* Read Clock Generator PLL Register */
156 target->type->read_memory(target, CKGR_PLLR, 4, 1, (u8 *)&pllr);
158 pres = (mckr>>2)&0x7;
159 mul = (pllr>>16)&0x7FF;
162 at91sam7_info->mck_valid = 0;
163 switch (mckr & PMC_MCKR_CSS) {
164 case 0: /* Slow Clock */
165 at91sam7_info->mck_valid = 1;
168 case 1: /* Main Clock */
169 if (mcfr & CKGR_MCFR_MAINRDY)
171 at91sam7_info->mck_valid = 1;
172 mainfreq = RC_FREQ / 16ul * (mcfr & 0xffff);
177 case 2: /* Reserved */
179 case 3: /* PLL Clock */
180 if (mcfr & CKGR_MCFR_MAINRDY)
182 target->type->read_memory(target, CKGR_PLLR, 4, 1,
184 if (!(pllr & CKGR_PLLR_DIV))
186 at91sam7_info->mck_valid = 1;
187 mainfreq = RC_FREQ / 16ul * (mcfr & 0xffff);
188 /* Integer arithmetic should have sufficient precision
189 as long as PLL is properly configured. */
190 tmp = mainfreq / (pllr & CKGR_PLLR_DIV) *
191 (((pllr & CKGR_PLLR_MUL) >> 16) + 1);
196 /* Prescaler adjust */
197 if (((mckr & PMC_MCKR_PRES) >> 2) == 7)
198 at91sam7_info->mck_valid = 0;
200 at91sam7_info->mck_freq = tmp >> ((mckr & PMC_MCKR_PRES) >> 2);
202 /* Forget old flash timing */
203 at91sam7_set_flash_mode(bank,0);
206 /* Setup the timimg registers for nvbits or normal flash */
207 void at91sam7_set_flash_mode(flash_bank_t *bank,int mode)
210 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
211 target_t *target = at91sam7_info->target;
213 if (mode && (mode != at91sam7_info->flashmode)) {
214 /* Always round up (ceil) */
216 /* main clocks in 1uS */
217 fmcn = (at91sam7_info->mck_freq/1000000ul)+1;
219 /* main clocks in 1.5uS */
220 fmcn = (at91sam7_info->mck_freq/666666ul)+1;
222 /* Only allow fmcn=0 if clock period is > 30 us. */
223 if (at91sam7_info->mck_freq <= 33333)
226 DEBUG("fmcn: %i", fmcn);
228 target->type->write_memory(target, MC_FSR, 4, 1, (u8 *)&fmr);
230 at91sam7_info->flashmode = mode;
233 u8 at91sam7_wait_status_busy(flash_bank_t *bank, int timeout)
237 while ((!((status = at91sam7_get_flash_status(bank)) & 0x01)) && (timeout-- > 0))
239 DEBUG("status: 0x%x", status);
243 DEBUG("status: 0x%x", status);
247 ERROR("status register: 0x%x", status);
249 ERROR("Lock Error Bit Detected, Operation Abort");
251 ERROR("Invalid command and/or bad keyword, Operation Abort");
253 ERROR("Security Bit Set, Operation Abort");
259 /* Send one command to the AT91SAM flash controller */
260 int at91sam7_flash_command(struct flash_bank_s *bank,u8 cmd,u16 pagen)
263 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
264 target_t *target = at91sam7_info->target;
266 fcr = (0x5A<<24) | (pagen<<8) | cmd;
267 target->type->write_memory(target, MC_FCR, 4, 1, (u8 *)&fcr);
268 DEBUG("Flash command: 0x%x, pagenumber:", fcr, pagen);
270 if (at91sam7_wait_status_busy(bank, 10)&0x0C)
272 return ERROR_FLASH_OPERATION_FAILED;
277 /* Read device id register, main clock frequency register and fill in driver info structure */
278 int at91sam7_read_part_info(struct flash_bank_s *bank)
280 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
281 target_t *target = at91sam7_info->target;
282 unsigned long cidr, mcfr, status;
284 if (at91sam7_info->target->state != TARGET_HALTED)
286 return ERROR_TARGET_NOT_HALTED;
289 /* Read and parse chip identification register */
290 target->type->read_memory(target, DBGU_CIDR, 4, 1, (u8 *)&cidr);
294 WARNING("Cannot identify target as an AT91SAM");
295 return ERROR_FLASH_OPERATION_FAILED;
298 at91sam7_info->cidr = cidr;
299 at91sam7_info->cidr_ext = (cidr>>31)&0x0001;
300 at91sam7_info->cidr_nvptyp = (cidr>>28)&0x0007;
301 at91sam7_info->cidr_arch = (cidr>>20)&0x00FF;
302 at91sam7_info->cidr_sramsiz = (cidr>>16)&0x000F;
303 at91sam7_info->cidr_nvpsiz2 = (cidr>>12)&0x000F;
304 at91sam7_info->cidr_nvpsiz = (cidr>>8)&0x000F;
305 at91sam7_info->cidr_eproc = (cidr>>5)&0x0007;
306 at91sam7_info->cidr_version = cidr&0x001F;
307 bank->size = NVPSIZ[at91sam7_info->cidr_nvpsiz];
308 at91sam7_info->target_name = "Unknown";
310 DEBUG("nvptyp: 0x%3.3x, arch: 0x%4.4x, alt_id: 0x%4.4x, alt_addr: 0x%4.4x", at91sam7_info->cidr_nvptyp, at91sam7_info->cidr_arch );
312 /* Read main and master clock freqency register */
313 at91sam7_read_clock_info(bank);
315 status = at91sam7_get_flash_status(bank);
316 at91sam7_info->lockbits = status>>16;
317 at91sam7_info->securitybit = (status>>4)&0x01;
319 if (at91sam7_info->cidr_arch == 0x70 )
321 at91sam7_info->num_nvmbits = 2;
322 at91sam7_info->nvmbits = (status>>8)&0x03;
323 bank->base = 0x100000;
325 if (bank->size==0x40000) /* AT91SAM7S256 */
327 at91sam7_info->target_name = "AT91SAM7S256";
328 at91sam7_info->num_lockbits = 16;
329 at91sam7_info->pagesize = 256;
330 at91sam7_info->pages_in_lockregion = 64;
331 at91sam7_info->num_pages = 16*64;
333 if (bank->size==0x20000) /* AT91SAM7S128 */
335 at91sam7_info->target_name = "AT91SAM7S128";
336 at91sam7_info->num_lockbits = 8;
337 at91sam7_info->pagesize = 256;
338 at91sam7_info->pages_in_lockregion = 64;
339 at91sam7_info->num_pages = 8*64;
341 if (bank->size==0x10000) /* AT91SAM7S64 */
343 at91sam7_info->target_name = "AT91SAM7S64";
344 at91sam7_info->num_lockbits = 16;
345 at91sam7_info->pagesize = 128;
346 at91sam7_info->pages_in_lockregion = 32;
347 at91sam7_info->num_pages = 16*32;
349 if (bank->size==0x08000) /* AT91SAM7S321/32 */
351 at91sam7_info->target_name = "AT91SAM7S321/32";
352 at91sam7_info->num_lockbits = 8;
353 at91sam7_info->pagesize = 128;
354 at91sam7_info->pages_in_lockregion = 32;
355 at91sam7_info->num_pages = 8*32;
361 if (at91sam7_info->cidr_arch == 0x71 )
363 at91sam7_info->num_nvmbits = 2;
364 at91sam7_info->nvmbits = (status>>8)&0x03;
365 bank->base = 0x100000;
367 if (bank->size==0x40000) /* AT91SAM7XC256 */
369 at91sam7_info->target_name = "AT91SAM7XC256";
370 at91sam7_info->num_lockbits = 16;
371 at91sam7_info->pagesize = 256;
372 at91sam7_info->pages_in_lockregion = 64;
373 at91sam7_info->num_pages = 16*64;
375 if (bank->size==0x20000) /* AT91SAM7XC128 */
377 at91sam7_info->target_name = "AT91SAM7XC128";
378 at91sam7_info->num_lockbits = 8;
379 at91sam7_info->pagesize = 256;
380 at91sam7_info->pages_in_lockregion = 64;
381 at91sam7_info->num_pages = 8*64;
387 if (at91sam7_info->cidr_arch == 0x75 )
389 at91sam7_info->num_nvmbits = 3;
390 at91sam7_info->nvmbits = (status>>8)&0x07;
391 bank->base = 0x100000;
393 if (bank->size==0x40000) /* AT91SAM7X256 */
395 at91sam7_info->target_name = "AT91SAM7X256";
396 at91sam7_info->num_lockbits = 16;
397 at91sam7_info->pagesize = 256;
398 at91sam7_info->pages_in_lockregion = 64;
399 at91sam7_info->num_pages = 16*64;
401 if (bank->size==0x20000) /* AT91SAM7X128 */
403 at91sam7_info->target_name = "AT91SAM7X128";
404 at91sam7_info->num_lockbits = 8;
405 at91sam7_info->pagesize = 256;
406 at91sam7_info->pages_in_lockregion = 64;
407 at91sam7_info->num_pages = 8*64;
413 if (at91sam7_info->cidr_arch == 0x60 )
415 at91sam7_info->num_nvmbits = 3;
416 at91sam7_info->nvmbits = (status>>8)&0x07;
417 bank->base = 0x100000;
420 if (bank->size == 0x40000) /* AT91SAM7A3 */
422 at91sam7_info->target_name = "AT91SAM7A3";
423 at91sam7_info->num_lockbits = 16;
424 at91sam7_info->pagesize = 256;
425 at91sam7_info->pages_in_lockregion = 64;
426 at91sam7_info->num_pages = 16*64;
431 WARNING("at91sam7 flash only tested for AT91SAM7Sxx series");
436 int at91sam7_erase_check(struct flash_bank_s *bank)
438 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
439 target_t *target = at91sam7_info->target;
442 if (!at91sam7_info->working_area_size)
452 int at91sam7_protect_check(struct flash_bank_s *bank)
456 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
457 target_t *target = at91sam7_info->target;
459 if (at91sam7_info->cidr == 0)
461 at91sam7_read_part_info(bank);
464 if (at91sam7_info->cidr == 0)
466 WARNING("Cannot identify target as an AT91SAM");
467 return ERROR_FLASH_OPERATION_FAILED;
470 status = at91sam7_get_flash_status(bank);
471 at91sam7_info->lockbits = status>>16;
476 int at91sam7_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
478 at91sam7_flash_bank_t *at91sam7_info;
482 WARNING("incomplete flash_bank at91sam7 configuration");
483 return ERROR_FLASH_BANK_INVALID;
486 at91sam7_info = malloc(sizeof(at91sam7_flash_bank_t));
487 bank->driver_priv = at91sam7_info;
489 at91sam7_info->target = get_target_by_num(strtoul(args[5], NULL, 0));
490 if (!at91sam7_info->target)
492 ERROR("no target '%i' configured", args[5]);
497 /* part wasn't probed for info yet */
498 at91sam7_info->cidr = 0;
503 int at91sam7_erase(struct flash_bank_s *bank, int first, int last)
505 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
507 if (at91sam7_info->target->state != TARGET_HALTED)
509 return ERROR_TARGET_NOT_HALTED;
512 if (at91sam7_info->cidr == 0)
514 at91sam7_read_part_info(bank);
517 if (at91sam7_info->cidr == 0)
519 WARNING("Cannot identify target as an AT91SAM");
520 return ERROR_FLASH_OPERATION_FAILED;
523 if ((first < 0) || (last < first) || (last >= at91sam7_info->num_lockbits))
525 return ERROR_FLASH_SECTOR_INVALID;
528 /* Configure the flash controller timing */
529 at91sam7_read_clock_info(bank);
530 at91sam7_set_flash_mode(bank,2);
532 if ((first == 0) && (last == (at91sam7_info->num_lockbits-1)))
534 return at91sam7_flash_command(bank, EA, 0);
537 WARNING("Can only erase the whole flash area, pages are autoerased on write");
538 return ERROR_FLASH_OPERATION_FAILED;
541 int at91sam7_protect(struct flash_bank_s *bank, int set, int first, int last)
543 u32 cmd, pagen, status;
546 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
547 target_t *target = at91sam7_info->target;
549 if (at91sam7_info->target->state != TARGET_HALTED)
551 return ERROR_TARGET_NOT_HALTED;
554 if ((first < 0) || (last < first) || (last >= at91sam7_info->num_lockbits))
556 return ERROR_FLASH_SECTOR_INVALID;
559 if (at91sam7_info->cidr == 0)
561 at91sam7_read_part_info(bank);
564 if (at91sam7_info->cidr == 0)
566 WARNING("Cannot identify target as an AT91SAM");
567 return ERROR_FLASH_OPERATION_FAILED;
570 /* Configure the flash controller timing */
571 at91sam7_read_clock_info(bank);
572 at91sam7_set_flash_mode(bank,1);
574 for (lockregion=first;lockregion<=last;lockregion++)
576 pagen = lockregion*at91sam7_info->pages_in_lockregion;
581 if (at91sam7_flash_command(bank, cmd, pagen) != ERROR_OK)
583 return ERROR_FLASH_OPERATION_FAILED;
587 status = at91sam7_get_flash_status(bank);
588 at91sam7_info->lockbits = status>>16;
594 int at91sam7_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
596 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
597 target_t *target = at91sam7_info->target;
598 u32 dst_min_alignment, wcount, bytes_remaining = count;
599 u32 first_page, last_page, pagen, buffer_pos;
602 if (at91sam7_info->target->state != TARGET_HALTED)
604 return ERROR_TARGET_NOT_HALTED;
607 if (at91sam7_info->cidr == 0)
609 at91sam7_read_part_info(bank);
612 if (at91sam7_info->cidr == 0)
614 WARNING("Cannot identify target as an AT91SAM");
615 return ERROR_FLASH_OPERATION_FAILED;
618 if (offset + count > bank->size)
619 return ERROR_FLASH_DST_OUT_OF_BANK;
621 dst_min_alignment = at91sam7_info->pagesize;
623 if (offset % dst_min_alignment)
625 WARNING("offset 0x%x breaks required alignment 0x%x", offset, dst_min_alignment);
626 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
629 if (offset + count > bank->size)
630 return ERROR_FLASH_DST_OUT_OF_BANK;
632 if (at91sam7_info->cidr_arch == 0)
633 return ERROR_FLASH_BANK_NOT_PROBED;
635 first_page = offset/dst_min_alignment;
636 last_page = CEIL(offset + count, dst_min_alignment);
638 DEBUG("first_page: %i, last_page: %i, count %i", first_page, last_page, count);
640 /* Configure the flash controller timing */
641 at91sam7_read_clock_info(bank);
642 at91sam7_set_flash_mode(bank,2);
644 for (pagen=first_page; pagen<last_page; pagen++) {
645 if (bytes_remaining<dst_min_alignment)
646 count = bytes_remaining;
648 count = dst_min_alignment;
649 bytes_remaining -= count;
651 /* Write one block to the PageWriteBuffer */
652 buffer_pos = (pagen-first_page)*dst_min_alignment;
653 wcount = CEIL(count,4);
654 target->type->write_memory(target, bank->base, 4, wcount, buffer+buffer_pos);
656 /* Send Write Page command to Flash Controller */
657 if (at91sam7_flash_command(bank, WP, pagen) != ERROR_OK)
659 return ERROR_FLASH_OPERATION_FAILED;
661 DEBUG("Flash command: 0x%x, pagenumber:", fcr, pagen);
668 int at91sam7_probe(struct flash_bank_s *bank)
670 /* we can't probe on an at91sam7
671 * if this is an at91sam7, it has the configured flash
673 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
675 if (at91sam7_info->cidr == 0)
677 at91sam7_read_part_info(bank);
680 if (at91sam7_info->cidr == 0)
682 WARNING("Cannot identify target as an AT91SAM");
683 return ERROR_FLASH_OPERATION_FAILED;
688 int at91sam7_info(struct flash_bank_s *bank, char *buf, int buf_size)
691 at91sam7_flash_bank_t *at91sam7_info = bank->driver_priv;
693 at91sam7_read_part_info(bank);
695 if (at91sam7_info->cidr == 0)
697 printed = snprintf(buf, buf_size, "Cannot identify target as an AT91SAM\n");
700 return ERROR_FLASH_OPERATION_FAILED;
703 printed = snprintf(buf, buf_size, "\nat91sam7 information:\n");
707 printed = snprintf(buf, buf_size, "cidr: 0x%8.8x, arch: 0x%4.4x, eproc: %s, version:0x%3.3x, flashsize: 0x%8.8x\n", at91sam7_info->cidr, at91sam7_info->cidr_arch, EPROC[at91sam7_info->cidr_eproc], at91sam7_info->cidr_version, bank->size);
711 printed = snprintf(buf, buf_size, "master clock(estimated): %ikHz \n", at91sam7_info->mck_freq / 1000);
715 if (at91sam7_info->num_lockbits>0) {
716 printed = snprintf(buf, buf_size, "pagesize: %i, lockbits: %i 0x%4.4x, pages in lock region: %i \n", at91sam7_info->pagesize, at91sam7_info->num_lockbits, at91sam7_info->lockbits,at91sam7_info->num_pages/at91sam7_info->num_lockbits);
721 printed = snprintf(buf, buf_size, "securitybit: %i, nvmbits: 0x%1.1x\n", at91sam7_info->securitybit, at91sam7_info->nvmbits);
729 * On AT91SAM7S: When the gpnmv bits are set with
730 * > at91sam7 gpnvm 0 bitnr set
731 * the changes are not visible in the flash controller status register MC_FSR
732 * until the processor has been reset.
733 * On the Olimex board this requires a power cycle.
734 * Note that the AT91SAM7S has the following errata (doc6175.pdf sec 14.1.3):
735 * The maximum number of write/erase cycles for Non Volatile Memory bits is 100. This includes
736 * Lock Bits (LOCKx), General Purpose NVM bits (GPNVMx) and the Security Bit.
738 int at91sam7_handle_gpnvm_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
745 at91sam7_flash_bank_t *at91sam7_info;
749 command_print(cmd_ctx, "at91sam7 gpnvm <num> <bit> <set|clear>");
753 bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
759 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
763 at91sam7_info = bank->driver_priv;
765 if (at91sam7_info->target->state != TARGET_HALTED)
767 return ERROR_TARGET_NOT_HALTED;
770 if (at91sam7_info->cidr == 0)
772 at91sam7_read_part_info(bank);
775 if (at91sam7_info->cidr == 0)
777 WARNING("Cannot identify target as an AT91SAM");
778 return ERROR_FLASH_OPERATION_FAILED;
781 if ((bit<0) || (at91sam7_info->num_nvmbits <= bit))
783 command_print(cmd_ctx, "gpnvm bit '#%s' is out of bounds for target %s", args[1],at91sam7_info->target_name);
787 if (strcmp(value, "set") == 0)
791 else if (strcmp(value, "clear") == 0)
797 command_print(cmd_ctx, "usage: at91sam7 gpnvm <num> <bit> <set|clear>");
801 /* Configure the flash controller timing */
802 at91sam7_read_clock_info(bank);
803 at91sam7_set_flash_mode(bank,1);
805 if (at91sam7_flash_command(bank, flashcmd, (u16)(bit)) != ERROR_OK)
807 return ERROR_FLASH_OPERATION_FAILED;
810 status = at91sam7_get_flash_status(bank);
811 DEBUG("at91sam7_handle_gpnvm_command: cmd 0x%x, value 0x%x, status 0x%x \n",flashcmd,bit,status);
812 at91sam7_info->nvmbits = (status>>8)&((1<<at91sam7_info->num_nvmbits)-1);