1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
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 ***************************************************************************/
27 #include "time_support.h"
32 #include "algorithm.h"
33 #include "binarybuffer.h"
39 #include <sys/types.h>
44 /* command handlers */
45 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
46 int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
47 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
48 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
49 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
50 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
51 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
52 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
53 int handle_flash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
54 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
55 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
56 int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
57 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
58 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
59 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr);
63 extern flash_driver_t lpc2000_flash;
64 extern flash_driver_t cfi_flash;
65 extern flash_driver_t at91sam7_flash;
66 extern flash_driver_t str7x_flash;
67 extern flash_driver_t str9x_flash;
68 extern flash_driver_t stellaris_flash;
69 extern flash_driver_t str9xpec_flash;
70 extern flash_driver_t stm32x_flash;
71 extern flash_driver_t tms470_flash;
72 extern flash_driver_t ecosflash_flash;
74 flash_driver_t *flash_drivers[] =
89 flash_bank_t *flash_banks;
90 static command_t *flash_cmd;
91 /* enabled by default*/
92 static int auto_erase = 1;
94 /* wafer thin wrapper for invoking the flash driver */
95 static int flash_driver_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
99 retval=bank->driver->write(bank, buffer, offset, count);
100 if (retval!=ERROR_OK)
102 LOG_ERROR("error writing to flash at address 0x%08x at offset 0x%8.8x (%d)", bank->base, offset, retval);
108 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
112 retval=bank->driver->erase(bank, first, last);
113 if (retval!=ERROR_OK)
115 LOG_ERROR("failed erasing sectors %d to %d (%d)", first, last, retval);
121 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
125 retval=bank->driver->protect(bank, set, first, last);
126 if (retval!=ERROR_OK)
128 LOG_ERROR("failed setting protection for areas %d to %d (%d)", first, last, retval);
135 int flash_register_commands(struct command_context_s *cmd_ctx)
137 flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
139 register_command(cmd_ctx, flash_cmd, "bank", handle_flash_bank_command, COMMAND_CONFIG, "flash_bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]");
140 register_command(cmd_ctx, flash_cmd, "auto_erase", handle_flash_auto_erase_command, COMMAND_ANY,
141 "auto erase flash sectors <on|off>");
145 int flash_init_drivers(struct command_context_s *cmd_ctx)
149 register_command(cmd_ctx, flash_cmd, "banks", handle_flash_banks_command, COMMAND_EXEC,
150 "list configured flash banks ");
151 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
152 "print info about flash bank <num>");
153 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
154 "identify flash bank <num>");
155 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
156 "check erase state of sectors in flash bank <num>");
157 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
158 "check protection state of sectors in flash bank <num>");
159 register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
160 "erase sectors at <bank> <first> <last>");
161 register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
162 "erase address range <address> <length>");
164 register_command(cmd_ctx, flash_cmd, "fillw", handle_flash_fill_command, COMMAND_EXEC,
165 "fill with pattern <address> <word_pattern> <count>");
166 register_command(cmd_ctx, flash_cmd, "fillh", handle_flash_fill_command, COMMAND_EXEC,
167 "fill with pattern <address> <halfword_pattern> <count>");
168 register_command(cmd_ctx, flash_cmd, "fillb", handle_flash_fill_command, COMMAND_EXEC,
169 "fill with pattern <address> <byte_pattern> <count>");
171 register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
172 "write binary data to <bank> <file> <offset>");
173 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
174 "write_image <file> [offset] [type]");
175 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
176 "set protection of sectors at <bank> <first> <last> <on|off>");
182 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
187 for (p = flash_banks; p; p = p->next)
194 LOG_ERROR("flash bank %d does not exist", num);
198 int flash_get_bank_count()
202 for (p = flash_banks; p; p = p->next)
209 flash_bank_t *get_flash_bank_by_num(int num)
211 flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
217 retval = p->driver->auto_probe(p);
219 if (retval != ERROR_OK)
221 LOG_ERROR("auto_probe failed %d\n", retval);
227 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
235 return ERROR_COMMAND_SYNTAX_ERROR;
238 if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
240 LOG_ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
244 for (i = 0; flash_drivers[i]; i++)
246 if (strcmp(args[0], flash_drivers[i]->name) == 0)
250 /* register flash specific commands */
251 if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
253 LOG_ERROR("couldn't register '%s' commands", args[0]);
257 c = malloc(sizeof(flash_bank_t));
259 c->driver = flash_drivers[i];
260 c->driver_priv = NULL;
261 c->base = strtoul(args[1], NULL, 0);
262 c->size = strtoul(args[2], NULL, 0);
263 c->chip_width = strtoul(args[3], NULL, 0);
264 c->bus_width = strtoul(args[4], NULL, 0);
269 if (flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
271 LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
276 /* put flash bank in linked list */
279 /* find last flash bank */
280 for (p = flash_banks; p && p->next; p = p->next);
293 /* no matching flash driver found */
296 LOG_ERROR("flash driver '%s' not found", args[0]);
303 int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
310 command_print(cmd_ctx, "no flash banks configured");
314 for (p = flash_banks; p; p = p->next)
316 command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
317 i++, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
323 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
332 return ERROR_COMMAND_SYNTAX_ERROR;
335 for (p = flash_banks; p; p = p->next, i++)
337 if (i == strtoul(args[0], NULL, 0))
341 /* attempt auto probe */
342 if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
345 command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
346 i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
347 for (j = 0; j < p->num_sectors; j++)
351 if (p->sectors[j].is_protected == 0)
352 protect_state = "not protected";
353 else if (p->sectors[j].is_protected == 1)
354 protect_state = "protected";
356 protect_state = "protection state unknown";
358 command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%x %ikB) %s",
359 j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
363 *buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
364 retval = p->driver->info(p, buf, sizeof(buf));
365 command_print(cmd_ctx, "%s", buf);
366 if (retval != ERROR_OK)
367 LOG_ERROR("error retrieving flash info (%d)", retval);
374 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
381 return ERROR_COMMAND_SYNTAX_ERROR;
384 p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
387 if ((retval = p->driver->probe(p)) == ERROR_OK)
389 command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
391 else if (retval == ERROR_FLASH_BANK_INVALID)
393 command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
398 command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
404 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
410 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
417 return ERROR_COMMAND_SYNTAX_ERROR;
420 p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
424 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
426 command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
430 command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
434 for (j = 0; j < p->num_sectors; j++)
438 if (p->sectors[j].is_erased == 0)
439 erase_state = "not erased";
440 else if (p->sectors[j].is_erased == 1)
441 erase_state = "erased";
443 erase_state = "erase state unknown";
445 command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%x %ikB) %s",
446 j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
455 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
464 target_t *target = get_current_target(cmd_ctx);
468 return ERROR_COMMAND_SYNTAX_ERROR;
471 address = strtoul(args[0], NULL, 0);
472 length = strtoul(args[1], NULL, 0);
475 command_print(cmd_ctx, "Length must be >0");
476 return ERROR_COMMAND_SYNTAX_ERROR;
479 p = get_flash_bank_by_addr(target, address);
482 return ERROR_COMMAND_SYNTAX_ERROR;
485 /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
488 duration_start_measure(&duration);
490 if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
492 duration_stop_measure(&duration, &duration_text);
493 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
500 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
507 return ERROR_COMMAND_SYNTAX_ERROR;
510 p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
513 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
515 command_print(cmd_ctx, "successfully checked protect state");
517 else if (retval == ERROR_FLASH_OPERATION_FAILED)
519 command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
523 command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
528 return ERROR_COMMAND_SYNTAX_ERROR;
534 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
538 int first = strtoul(args[1], NULL, 0);
539 int last = strtoul(args[2], NULL, 0);
541 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
545 duration_start_measure(&duration);
549 return ERROR_COMMAND_SYNTAX_ERROR;
552 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
554 duration_stop_measure(&duration, &duration_text);
556 command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
562 return ERROR_COMMAND_SYNTAX_ERROR;
568 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
572 int first = strtoul(args[1], NULL, 0);
573 int last = strtoul(args[2], NULL, 0);
576 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
579 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
583 if (strcmp(args[3], "on") == 0)
585 else if (strcmp(args[3], "off") == 0)
589 return ERROR_COMMAND_SYNTAX_ERROR;
592 retval = flash_driver_protect(p, set, first, last);
593 if (retval == ERROR_OK)
595 command_print(cmd_ctx, "%s protection for sectors %i through %i on flash bank %i", (set) ? "set" : "cleared", first, last, strtoul(args[0], 0, 0));
600 return ERROR_COMMAND_SYNTAX_ERROR;
607 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
609 target_t *target = get_current_target(cmd_ctx);
621 return ERROR_COMMAND_SYNTAX_ERROR;
626 LOG_ERROR("no target selected");
630 duration_start_measure(&duration);
634 image.base_address_set = 1;
635 image.base_address = strtoul(args[1], NULL, 0);
639 image.base_address_set = 0;
640 image.base_address = 0x0;
643 image.start_address_set = 0;
645 retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
646 if (retval != ERROR_OK)
651 retval = flash_write(target, &image, &written, auto_erase);
652 if (retval != ERROR_OK)
658 duration_stop_measure(&duration, &duration_text);
659 if (retval == ERROR_OK)
661 command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
662 written, args[0], duration_text,
663 (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
672 int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
683 target_t *target = get_current_target(cmd_ctx);
689 return ERROR_COMMAND_SYNTAX_ERROR;
692 address = strtoul(args[0], NULL, 0);
693 pattern = strtoul(args[1], NULL, 0);
694 count = strtoul(args[2], NULL, 0);
712 return ERROR_COMMAND_SYNTAX_ERROR;
715 chunk_count = MIN(count, (1024 / wordsize));
719 for(i = 0; i < chunk_count; i++)
721 target_buffer_set_u32(target, chunk + i * wordsize, pattern);
725 for(i = 0; i < chunk_count; i++)
727 target_buffer_set_u16(target, chunk + i * wordsize, pattern);
731 memset(chunk, pattern, chunk_count);
734 LOG_ERROR("BUG: can't happen");
738 duration_start_measure(&duration);
741 err = flash_erase_address_range( target, address, count*wordsize );
744 for (wrote=0; wrote<(count*wordsize); wrote+=sizeof(chunk))
746 int cur_size = MIN( (count*wordsize - wrote) , 1024 );
750 bank = get_flash_bank_by_addr(target, address);
756 err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
764 duration_stop_measure(&duration, &duration_text);
769 speed=wrote / 1024.0;
770 speed/=((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0));
771 command_print(cmd_ctx, "wrote %d bytes to 0x%8.8x in %s (%f kb/s)",
772 count*wordsize, address, duration_text,
779 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
795 return ERROR_COMMAND_SYNTAX_ERROR;
798 duration_start_measure(&duration);
800 offset = strtoul(args[2], NULL, 0);
801 p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
804 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
808 if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
813 buffer = malloc(fileio.size);
814 if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
819 retval = flash_driver_write(p, buffer, offset, buf_cnt);
823 duration_stop_measure(&duration, &duration_text);
824 if (retval!=ERROR_OK)
826 command_print(cmd_ctx, "wrote %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
827 fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
828 (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
832 fileio_close(&fileio);
837 void flash_set_dirty(void)
842 /* set all flash to require erasing */
843 for (c = flash_banks; c; c = c->next)
845 for (i = 0; i < c->num_sectors; i++)
847 c->sectors[i].is_erased = 0;
852 /* lookup flash bank by address */
853 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
857 /* cycle through bank list */
858 for (c = flash_banks; c; c = c->next)
861 retval = c->driver->auto_probe(c);
863 if (retval != ERROR_OK)
865 LOG_ERROR("auto_probe failed %d\n", retval);
868 /* check whether address belongs to this flash bank */
869 if ((addr >= c->base) && (addr < c->base + c->size) && target == c->target)
872 LOG_ERROR("No flash at address 0x%08x\n", addr);
876 /* erase given flash region, selects proper bank according to target and address */
877 int flash_erase_address_range(target_t *target, u32 addr, u32 length)
884 if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
885 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
887 if (c->size == 0 || c->num_sectors == 0)
889 LOG_ERROR("Bank is invalid");
890 return ERROR_FLASH_BANK_INVALID;
895 /* special case, erase whole bank when length is zero */
897 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
899 return flash_driver_erase(c, 0, c->num_sectors - 1);
902 /* check whether it fits */
903 if (addr + length > c->base + c->size)
904 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
908 for (i = 0; i < c->num_sectors; i++)
910 /* check whether sector overlaps with the given range and is not yet erased */
911 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
912 /* if first is not set yet then this is the first sector */
915 last = i; /* and it is the last one so far in any case */
919 if( first == -1 || last == -1 )
922 return flash_driver_erase(c, first, last);
925 /* write (optional verify) an image to flash memory of the given target */
926 int flash_write(target_t *target, image_t *image, u32 *written, int erase)
942 /* assume all sectors need erasing - stops any problems
943 * when flash_write is called multiple times */
948 /* loop until we reach end of the image */
949 while (section < image->num_sections)
955 u32 run_address = image->sections[section].base_address + section_offset;
956 u32 run_size = image->sections[section].size - section_offset;
958 if (image->sections[section].size == 0)
960 LOG_WARNING("empty section %d", section);
966 /* find the corresponding flash bank */
967 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
969 section++; /* and skip it */
974 /* collect consecutive sections which fall into the same bank */
975 section_first = section;
976 section_last = section;
977 while ((run_address + run_size < c->base + c->size)
978 && (section_last + 1 < image->num_sections))
980 if (image->sections[section_last + 1].base_address < (run_address + run_size))
982 LOG_DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
985 if (image->sections[section_last + 1].base_address != (run_address + run_size))
987 run_size += image->sections[++section_last].size;
990 /* fit the run into bank constraints */
991 if (run_address + run_size > c->base + c->size)
992 run_size = c->base + c->size - run_address;
994 /* allocate buffer */
995 buffer = malloc(run_size);
998 /* read sections to the buffer */
999 while (buffer_size < run_size)
1003 if (buffer_size - run_size <= image->sections[section].size - section_offset)
1004 size_read = buffer_size - run_size;
1006 size_read = image->sections[section].size - section_offset;
1008 if ((retval = image_read_section(image, section, section_offset,
1009 size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
1016 buffer_size += size_read;
1017 section_offset += size_read;
1019 if (section_offset >= image->sections[section].size)
1030 /* calculate and erase sectors */
1031 retval = flash_erase_address_range( target, run_address, run_size );
1034 if (retval == ERROR_OK)
1036 /* write flash sectors */
1037 retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
1042 if (retval != ERROR_OK)
1044 return retval; /* abort operation */
1047 if (written != NULL)
1048 *written += run_size; /* add run size to total written counter */
1054 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1058 return ERROR_COMMAND_SYNTAX_ERROR;
1061 if (strcmp(args[0], "on") == 0)
1063 else if (strcmp(args[0], "off") == 0)
1066 return ERROR_COMMAND_SYNTAX_ERROR;
1072 int default_flash_blank_check(struct flash_bank_s *bank)
1074 target_t *target = bank->target;
1076 int buffer_size=sizeof(buffer);
1080 if (bank->target->state != TARGET_HALTED)
1082 return ERROR_TARGET_NOT_HALTED;
1087 working_area_t *erase_check_algorithm;
1089 /* FIX! doesn't work yet... */
1091 char test(char *a, int len, char t)
1095 for (i=0; i<len; i++)
1102 $ arm-elf-gcc -c -mthumb -O3 test.c
1104 $ arm-elf-objdump --disassemble test.o
1106 test.o: file format elf32-littlearm
1108 Disassembly of section .text:
1111 0: b510 push {r4, lr}
1112 2: 0612 lsl r2, r2, #24
1113 4: 1c04 mov r4, r0 (add r4, r0, #0)
1114 6: 0e10 lsr r0, r2, #24
1117 c: dd04 ble 18 <test+0x18>
1118 e: 5ca3 ldrb r3, [r4, r2]
1122 16: dbfa blt e <test+0xe>
1123 18: bd10 pop {r4, pc}
1124 1a: 46c0 nop (mov r8, r8)
1128 u16 erase_check_code[] =
1130 0x0612,// lsl r2, r2, #24
1131 0x1c04,// mov r4, r0 (add r4, r0, #0)
1132 0x0e10,// lsr r0, r2, #24
1133 0x2200,// mov r2, #0
1134 0x2900,// cmp r1, #0
1135 0xdd04,// ble 18 <test+0x18>
1136 0x5ca3,// ldrb r3, [r4, r2]
1137 0x3201,// add r2, #1
1138 0x4018,// and r0, r3
1139 0x428a,// cmp r2, r1
1140 0xdbfa,// blt e <test+0xe>
1141 0x46c0,// nop (mov r8, r8)
1147 /* make sure we have a working area */
1148 if (target_alloc_working_area(target, ((sizeof(erase_check_code)+3)/4)*4, &erase_check_algorithm) != ERROR_OK)
1150 erase_check_algorithm = NULL;
1153 if (erase_check_algorithm)
1155 u8 erase_check_code_buf[((sizeof(erase_check_code)+3)/4)*4];
1156 LOG_DEBUG("Running fast flash erase check");
1158 for (i = 0; i < sizeof(erase_check_code)/sizeof(*erase_check_code); i++)
1159 target_buffer_set_u16(target, erase_check_code_buf + (i*2), erase_check_code[i]);
1161 /* write algorithm code to working area */
1162 if ((retval=target->type->write_memory(target, erase_check_algorithm->address, 2, sizeof(erase_check_code)/sizeof(*erase_check_code), erase_check_code_buf))==ERROR_OK)
1164 for (i = 0; i < bank->num_sectors; i++)
1166 u32 address = bank->base + bank->sectors[i].offset;
1167 u32 size = bank->sectors[i].size;
1169 reg_param_t reg_params[3];
1170 armv7m_algorithm_t arm_info;
1172 arm_info.common_magic = ARMV7M_COMMON_MAGIC;
1173 arm_info.core_mode = ARMV7M_MODE_ANY;
1174 arm_info.core_state = ARMV7M_STATE_THUMB;
1176 init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
1177 buf_set_u32(reg_params[0].value, 0, 32, address);
1179 init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
1180 buf_set_u32(reg_params[1].value, 0, 32, size);
1182 init_reg_param(®_params[2], "r2", 32, PARAM_IN_OUT);
1183 buf_set_u32(reg_params[2].value, 0, 32, 0xff);
1185 if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params, erase_check_algorithm->address,
1186 erase_check_algorithm->address + sizeof(erase_check_code) - 2, 10000, &arm_info)) != ERROR_OK)
1189 if (buf_get_u32(reg_params[2].value, 0, 32) == 0xff)
1190 bank->sectors[i].is_erased = 1;
1192 bank->sectors[i].is_erased = 0;
1194 destroy_reg_param(®_params[0]);
1195 destroy_reg_param(®_params[1]);
1196 destroy_reg_param(®_params[2]);
1198 if (i == bank->num_sectors)
1203 target_free_working_area(target, erase_check_algorithm);
1208 /* try ARM7 instead */
1210 u32 erase_check_code[] =
1212 0xe4d03001, /* ldrb r3, [r0], #1 */
1213 0xe0022003, /* and r2, r2, r3 */
1214 0xe2511001, /* subs r1, r1, #1 */
1215 0x1afffffb, /* b -4 */
1216 0xeafffffe /* b 0 */
1219 /* make sure we have a working area */
1220 if (target_alloc_working_area(target, 20, &erase_check_algorithm) == ERROR_OK)
1222 u8 erase_check_code_buf[5 * 4];
1224 for (i = 0; i < 5; i++)
1225 target_buffer_set_u32(target, erase_check_code_buf + (i*4), erase_check_code[i]);
1227 /* write algorithm code to working area */
1228 if ((retval=target->type->write_memory(target, erase_check_algorithm->address, 4, 5, erase_check_code_buf))==ERROR_OK)
1230 for (i = 0; i < bank->num_sectors; i++)
1232 u32 address = bank->base + bank->sectors[i].offset;
1233 u32 size = bank->sectors[i].size;
1235 reg_param_t reg_params[3];
1236 armv4_5_algorithm_t armv4_5_info;
1238 armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
1239 armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
1240 armv4_5_info.core_state = ARMV4_5_STATE_ARM;
1242 init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
1243 buf_set_u32(reg_params[0].value, 0, 32, address);
1245 init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
1246 buf_set_u32(reg_params[1].value, 0, 32, size);
1248 init_reg_param(®_params[2], "r2", 32, PARAM_IN_OUT);
1249 buf_set_u32(reg_params[2].value, 0, 32, 0xff);
1251 if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params,
1252 erase_check_algorithm->address, erase_check_algorithm->address + 0x10, 10000, &armv4_5_info)) != ERROR_OK)
1255 if (buf_get_u32(reg_params[2].value, 0, 32) == 0xff)
1256 bank->sectors[i].is_erased = 1;
1258 bank->sectors[i].is_erased = 0;
1260 destroy_reg_param(®_params[0]);
1261 destroy_reg_param(®_params[1]);
1262 destroy_reg_param(®_params[2]);
1264 if (i == bank->num_sectors)
1269 target_free_working_area(target, erase_check_algorithm);
1276 LOG_USER("Running slow fallback erase check - add working memory");
1277 for (i = 0; i < bank->num_sectors; i++)
1280 bank->sectors[i].is_erased = 1;
1282 for (j=0; j<bank->sectors[i].size; j+=buffer_size)
1287 if (chunk>(j-bank->sectors[i].size))
1289 chunk=(j-bank->sectors[i].size);
1292 retval=target->type->read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
1293 if (retval!=ERROR_OK)
1296 for (nBytes = 0; nBytes < chunk; nBytes++)
1298 if (buffer[nBytes] != 0xFF)
1300 bank->sectors[i].is_erased = 0;