eCos flash driver.
[mw/openocd-lm32.git] / src / flash / flash.c
1 /***************************************************************************
2  *   Copyright (C) 2005 by Dominic Rath                                    *
3  *   Dominic.Rath@gmx.de                                                   *
4  *                                                                         *
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.                                   *
9  *                                                                         *
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.                          *
14  *                                                                         *
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  ***************************************************************************/
20 #ifdef HAVE_CONFIG_H
21 #include "config.h"
22 #endif
23
24 #include "flash.h"
25 #include "command.h"
26 #include "target.h"
27 #include "time_support.h"
28 #include "fileio.h"
29 #include "image.h"
30 #include "log.h"
31
32 #include <string.h>
33 #include <unistd.h>
34 #include <stdlib.h>
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <errno.h>
38 #include <inttypes.h>
39
40 /* command handlers */
41 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
42 int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
43 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
44 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
45 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
46 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
47 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
48 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
49 int handle_flash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
50 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
51 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
52 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
53 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
54 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr);
55
56 /* flash drivers
57  */
58 extern flash_driver_t lpc2000_flash;
59 extern flash_driver_t cfi_flash;
60 extern flash_driver_t at91sam7_flash;
61 extern flash_driver_t str7x_flash;
62 extern flash_driver_t str9x_flash;
63 extern flash_driver_t stellaris_flash;
64 extern flash_driver_t str9xpec_flash;
65 extern flash_driver_t stm32x_flash;
66 extern flash_driver_t tms470_flash;
67 extern flash_driver_t ecosflash_flash;\r
68
69 flash_driver_t *flash_drivers[] =
70 {
71         &lpc2000_flash,
72         &cfi_flash,
73         &at91sam7_flash,
74         &str7x_flash,
75         &str9x_flash,
76         &stellaris_flash,
77         &str9xpec_flash,
78         &stm32x_flash,
79         &tms470_flash,
80         &ecosflash_flash,\r
81         NULL,
82 };
83
84 flash_bank_t *flash_banks;
85 static  command_t *flash_cmd;
86 static int auto_erase = 0;
87
88 /* wafer thin wrapper for invoking the flash driver */
89 static int flash_driver_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
90 {
91         int retval=ERROR_OK;
92         if (bank->target->state != TARGET_HALTED)
93         {
94                 ERROR("target not halted - aborting flash write");
95                 retval=ERROR_TARGET_NOT_HALTED;
96         } else
97         {
98                 retval=bank->driver->write(bank, buffer, offset, count);
99         }
100         if (retval!=ERROR_OK)
101         {
102                 ERROR("Writing to flash bank at address 0x%08x at offset 0x%8.8x", bank->base, offset);
103         }
104         return retval;
105 }
106
107 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
108 {
109         int retval=ERROR_OK;
110         if (bank->target->state != TARGET_HALTED)
111         {
112                 ERROR("target not halted - aborting flash erase");
113                 retval=ERROR_TARGET_NOT_HALTED;
114         } else if ((first < 0) || (last < first) || (last >= bank->num_sectors))
115         {
116                 ERROR("invalid flash sector");
117                 retval=ERROR_FLASH_SECTOR_INVALID;
118         } else          
119         {
120                 retval=bank->driver->erase(bank, first, last);
121         }
122         if (retval!=ERROR_OK)
123         {
124                 ERROR("Failed erasing banks %d to %d", first, last);
125         }
126         return retval;
127 }
128
129 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
130 {
131         int retval;
132         if (bank->target->state != TARGET_HALTED)
133         {
134                 ERROR("target not halted - aborting flash erase");
135                 retval=ERROR_TARGET_NOT_HALTED;
136         } else if ((first < 0) || (last < first) || (last >= bank->num_sectors))
137         {
138                 ERROR("invalid flash sector");
139                 retval=ERROR_FLASH_SECTOR_INVALID;
140         } else          
141         {
142                 retval=bank->driver->protect(bank, set, first, last);
143         }
144         if (retval!=ERROR_OK)
145         {
146                 ERROR("Failed protecting banks %d to %d", first, last);
147         }
148         return retval;
149 }
150
151
152 int flash_register_commands(struct command_context_s *cmd_ctx)
153 {
154         flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
155         
156         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 ...]");
157         register_command(cmd_ctx, flash_cmd, "auto_erase", handle_flash_auto_erase_command, COMMAND_ANY,
158                                                  "auto erase flash sectors <on|off>");
159         return ERROR_OK;
160 }
161
162 int flash_init_drivers(struct command_context_s *cmd_ctx)
163 {
164         if (flash_banks)
165         {
166                 register_command(cmd_ctx, flash_cmd, "banks", handle_flash_banks_command, COMMAND_EXEC,
167                                                  "list configured flash banks ");
168                 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
169                                                  "print info about flash bank <num>");
170                 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
171                                                  "identify flash bank <num>");
172                 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
173                                                  "check erase state of sectors in flash bank <num>");
174                 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
175                                                  "check protection state of sectors in flash bank <num>");
176                 register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
177                                                  "erase sectors at <bank> <first> <last>");
178                 register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
179                                                  "erase address range <address> <length>");
180                 register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
181                                                  "write binary data to <bank> <file> <offset>");
182                 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
183                                                  "write_image <file> [offset] [type]");
184                 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
185                                                  "set protection of sectors at <bank> <first> <last> <on|off>");
186         }
187         
188         return ERROR_OK;
189 }
190
191 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
192 {
193         flash_bank_t *p;
194         int i = 0;
195
196         for (p = flash_banks; p; p = p->next)
197         {
198                 if (i++ == num)
199                 {
200                         return p;
201                 }
202         }
203         ERROR("Flash bank %d does not exist", num);
204         return NULL;
205 }
206
207 flash_bank_t *get_flash_bank_by_num(int num)
208 {
209         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
210         int retval;
211         
212         if (p == NULL)
213                 return NULL;
214         
215         retval = p->driver->auto_probe(p);
216         
217         if (retval != ERROR_OK)
218         {
219                 ERROR("auto_probe failed %d\n", retval);
220                 return NULL;
221         }
222         return p;
223 }
224
225 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
226 {
227         int i;
228         int found = 0;
229         target_t *target;
230                 
231         if (argc < 6)
232         {
233                 return ERROR_COMMAND_SYNTAX_ERROR;
234         }
235         
236         if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
237         {
238                 ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
239                 return ERROR_OK;
240         }
241         
242         for (i = 0; flash_drivers[i]; i++)
243         {
244                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
245                 {
246                         flash_bank_t *p, *c;
247                         
248                         /* register flash specific commands */
249                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
250                         {
251                                 ERROR("couldn't register '%s' commands", args[0]);
252                                 exit(-1);
253                         }
254                         
255                         c = malloc(sizeof(flash_bank_t));
256                         c->target = target;
257                         c->driver = flash_drivers[i];
258                         c->driver_priv = NULL;
259                         c->base = strtoul(args[1], NULL, 0);
260                         c->size = strtoul(args[2], NULL, 0);
261                         c->chip_width = strtoul(args[3], NULL, 0);
262                         c->bus_width = strtoul(args[4], NULL, 0);
263                         c->num_sectors = 0;
264                         c->sectors = NULL;
265                         c->next = NULL;
266                         
267                         if (flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
268                         {
269                                 ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
270                                 free(c);
271                                 return ERROR_OK;
272                         }
273                         
274                         /* put flash bank in linked list */
275                         if (flash_banks)
276                         {
277                                 /* find last flash bank */
278                                 for (p = flash_banks; p && p->next; p = p->next);
279                                 if (p)
280                                         p->next = c;
281                         }
282                         else
283                         {
284                                 flash_banks = c;
285                         }
286                         
287                         found = 1;
288                 }
289         }
290                 
291         /* no matching flash driver found */
292         if (!found)
293         {
294                 ERROR("flash driver '%s' not found", args[0]);
295                 exit(-1);
296         }
297         
298         return ERROR_OK;
299 }
300
301 int handle_flash_banks_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
302 {
303         flash_bank_t *p;
304         int i = 0;
305         
306         if (!flash_banks)
307         {
308                 command_print(cmd_ctx, "no flash banks configured");
309                 return ERROR_OK;
310         }
311         
312         for (p = flash_banks; p; p = p->next)
313         {
314                 command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
315                                           i++, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
316         }
317         
318         return ERROR_OK;
319 }
320
321 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
322 {
323         flash_bank_t *p;
324         int i = 0;
325         int j = 0;
326                 
327         if (argc != 1)
328         {
329                 return ERROR_COMMAND_SYNTAX_ERROR;
330         }
331         
332         for (p = flash_banks; p; p = p->next, i++)
333         {
334                 if (i == strtoul(args[0], NULL, 0))
335                 {
336                         char buf[1024];
337                         
338                         /* attempt auto probe */
339                         p->driver->auto_probe(p);
340                         
341                         command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
342                                                 i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
343                         for (j = 0; j < p->num_sectors; j++)
344                         {
345                                 char *erase_state, *protect_state;
346                                 
347                                 if (p->sectors[j].is_erased == 0)
348                                         erase_state = "not erased";
349                                 else if (p->sectors[j].is_erased == 1)
350                                         erase_state = "erased";
351                                 else
352                                         erase_state = "erase state unknown";
353                                 
354                                 if (p->sectors[j].is_protected == 0)
355                                         protect_state = "not protected";
356                                 else if (p->sectors[j].is_protected == 1)
357                                         protect_state = "protected";
358                                 else
359                                         protect_state = "protection state unknown";
360
361                                 command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%x %ikB) %s, %s",
362                                                         j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
363                                                         erase_state, protect_state);
364                         }
365                         
366                         p->driver->info(p, buf, 1024);
367                         command_print(cmd_ctx, "%s", buf);
368                 }
369         }
370         
371         return ERROR_OK;
372 }
373
374 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
375 {
376         flash_bank_t *p;
377         int retval;
378                 
379         if (argc != 1)
380         {
381                 return ERROR_COMMAND_SYNTAX_ERROR;
382         }
383         
384         p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
385         if (p)
386         {
387                 if ((retval = p->driver->probe(p)) == ERROR_OK)
388                 {
389                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
390                 }
391                 else if (retval == ERROR_FLASH_BANK_INVALID)
392                 {
393                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
394                                                   args[0], p->base);
395                 }
396                 else
397                 {
398                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
399                                                   args[0], p->base);
400                 }
401         }
402         else
403         {
404                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
405         }
406         
407         return ERROR_OK;
408 }
409
410 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
411 {
412         flash_bank_t *p;
413         int retval;
414                 
415         if (argc != 1)
416         {
417                 return ERROR_COMMAND_SYNTAX_ERROR;
418         }
419         
420         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
421         if (p)
422         {
423                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
424                 {
425                         command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
426                 }
427                 else
428                 {
429                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
430                                 args[0], p->base);
431                 }
432         }
433         
434         return ERROR_OK;
435 }
436
437 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
438 {
439         flash_bank_t *p;
440         int retval;
441         int address;
442         int length;
443         duration_t duration;
444         char *duration_text;
445         
446         target_t *target = get_current_target(cmd_ctx);
447
448         if (argc != 2)
449         {
450                 return ERROR_COMMAND_SYNTAX_ERROR;
451         }
452         
453         address = strtoul(args[0], NULL, 0);
454         length = strtoul(args[1], NULL, 0);
455         if (length <= 0)
456         {
457                 command_print(cmd_ctx, "Length must be >0");
458                 return ERROR_COMMAND_SYNTAX_ERROR;
459         }
460
461         p = get_flash_bank_by_addr(target, address);
462         if (p == NULL)
463         {
464                 return ERROR_COMMAND_SYNTAX_ERROR;
465         }
466         
467         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
468         flash_set_dirty();
469         
470         duration_start_measure(&duration);
471         
472         if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
473         {
474                 duration_stop_measure(&duration, &duration_text);       
475                 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
476                 free(duration_text);
477         }
478         
479         return retval;
480 }
481
482 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
483 {
484         flash_bank_t *p;
485         int retval;
486                 
487         if (argc != 1)
488         {
489                 return ERROR_COMMAND_SYNTAX_ERROR;
490         }
491         
492         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
493         if (p)
494         {
495                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
496                 {
497                         command_print(cmd_ctx, "successfully checked protect state");
498                 }
499                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
500                 {
501                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
502                 }
503                 else
504                 {
505                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
506                 }
507         }
508         else
509         {
510                 return ERROR_COMMAND_SYNTAX_ERROR;
511         }
512         
513         return ERROR_OK;
514 }
515
516 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
517 {
518         if (argc > 2)
519         {
520                 int first = strtoul(args[1], NULL, 0);
521                 int last = strtoul(args[2], NULL, 0);
522                 int retval;
523                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
524                 duration_t duration;
525                 char *duration_text;
526         
527                 duration_start_measure(&duration);
528         
529                 if (!p)
530                 {
531                         return ERROR_COMMAND_SYNTAX_ERROR;
532                 }
533                 
534                 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
535                 {
536                         duration_stop_measure(&duration, &duration_text);       
537                         
538                         command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
539                         free(duration_text);
540                 }
541         }
542         else
543         {
544                 return ERROR_COMMAND_SYNTAX_ERROR;
545         }
546
547         return ERROR_OK;
548 }
549
550 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
551 {
552         if (argc > 3)
553         {
554                 int first = strtoul(args[1], NULL, 0);
555                 int last = strtoul(args[2], NULL, 0);
556                 int set;
557                 int retval;
558                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
559                 if (!p)
560                 {
561                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
562                         return ERROR_OK;
563                 }
564                 
565                 if (strcmp(args[3], "on") == 0)
566                         set = 1;
567                 else if (strcmp(args[3], "off") == 0)
568                         set = 0;
569                 else
570                 {
571                         return ERROR_COMMAND_SYNTAX_ERROR;
572                 }
573                 
574                 retval = flash_driver_protect(p, set, first, last);
575                 if (retval == ERROR_OK)
576                 {
577                         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));
578                 }
579         }
580         else
581         {
582                 return ERROR_COMMAND_SYNTAX_ERROR;
583
584         }
585
586         return ERROR_OK;
587 }
588
589 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
590 {
591         target_t *target = get_current_target(cmd_ctx);
592         
593         image_t image;
594         u32 written;
595         
596         duration_t duration;
597         char *duration_text;
598         
599         int retval;
600
601         if (argc < 1)
602         {
603                 return ERROR_COMMAND_SYNTAX_ERROR;
604
605         }
606         
607         if (!target)
608         {
609                 ERROR("no target selected");
610                 return ERROR_OK;
611         }
612         
613         duration_start_measure(&duration);
614         
615         if (argc >= 2)
616         {
617                 image.base_address_set = 1;
618                 image.base_address = strtoul(args[1], NULL, 0);
619         }
620         else
621         {
622                 image.base_address_set = 0;
623                 image.base_address = 0x0;
624         }
625         
626         image.start_address_set = 0;
627
628         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
629         if (retval != ERROR_OK)
630         {
631                 command_print(cmd_ctx, "image_open error: %s", image.error_str);
632                 return retval;
633         }
634         
635         retval = flash_write(target, &image, &written, auto_erase);
636
637         if (retval != ERROR_OK)
638         {
639                 image_close(&image);
640                 return retval;
641         }
642         
643         duration_stop_measure(&duration, &duration_text);
644         if (retval == ERROR_OK)
645         {
646         command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
647                 written, args[0], duration_text,
648                 (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
649         }
650         free(duration_text);
651
652         image_close(&image);
653         
654         return retval;
655 }
656
657 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
658 {
659         u32 offset;
660         u8 *buffer;
661         u32 buf_cnt;
662
663         fileio_t fileio;
664         
665         duration_t duration;
666         char *duration_text;
667         
668         int retval;
669         flash_bank_t *p;
670
671         if (argc != 3)
672         {
673                 return ERROR_COMMAND_SYNTAX_ERROR;
674         }
675         
676         duration_start_measure(&duration);
677         
678         offset = strtoul(args[2], NULL, 0);
679         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
680         if (!p)
681         {
682                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
683                 return ERROR_OK;
684         }
685         
686         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
687         {
688                 command_print(cmd_ctx, "flash write_binary error: %s", fileio.error_str);
689                 return ERROR_OK;
690         }
691         
692         buffer = malloc(fileio.size);
693         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
694         {
695                 command_print(cmd_ctx, "flash write_binary error: %s", fileio.error_str);
696                 return ERROR_OK;
697         }
698         
699         retval = flash_driver_write(p, buffer, offset, buf_cnt);
700                 
701         free(buffer);
702         
703         duration_stop_measure(&duration, &duration_text);
704         if (retval!=ERROR_OK)
705         {
706         command_print(cmd_ctx, "wrote  %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
707                 fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
708                 (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
709         }
710         free(duration_text);
711
712         fileio_close(&fileio);
713         
714         return retval;
715 }
716
717 void flash_set_dirty(void)
718 {
719         flash_bank_t *c;
720         int i;
721         
722         /* set all flash to require erasing */
723         for (c = flash_banks; c; c = c->next)
724         {
725                 for (i = 0; i < c->num_sectors; i++)
726                 {
727                         c->sectors[i].is_erased = 0; 
728                 }
729         }
730 }
731
732 /* lookup flash bank by address */
733 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
734 {
735         flash_bank_t *c;
736
737         /* cycle through bank list */
738         for (c = flash_banks; c; c = c->next)
739         {
740                 int retval;
741                 retval = c->driver->auto_probe(c);
742                 
743                 if (retval != ERROR_OK)
744                 {
745                         ERROR("auto_probe failed %d\n", retval);
746                         return NULL;
747                 }
748                 /* check whether address belongs to this flash bank */
749                 if ((addr >= c->base) && (addr < c->base + c->size) && target == c->target)
750                         return c;
751         }
752         ERROR("No flash at address 0x%08x\n", addr);
753         return NULL;
754 }
755
756 /* erase given flash region, selects proper bank according to target and address */
757 int flash_erase_address_range(target_t *target, u32 addr, u32 length)
758 {
759         flash_bank_t *c;
760         int first = -1;
761         int last = -1;
762         int i;
763         
764         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
765                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
766
767         if (c->size == 0 || c->num_sectors == 0)
768                 return ERROR_FLASH_BANK_INVALID;
769         
770         if (length == 0)
771         {
772                 /* special case, erase whole bank when length is zero */
773                 if (addr != c->base)
774                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
775                 
776                 return flash_driver_erase(c, 0, c->num_sectors - 1);
777         }
778
779         /* check whether it fits */
780         if (addr + length > c->base + c->size)
781                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
782         
783         addr -= c->base;
784         
785         for (i = 0; i < c->num_sectors; i++)
786         {               
787                 /* check whether sector overlaps with the given range and is not yet erased */
788                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
789                         /* if first is not set yet then this is the first sector */
790                         if (first == -1)
791                                 first = i;
792                         last = i; /* and it is the last one so far in any case */
793                 }
794         }
795         
796         if( first == -1 || last == -1 )
797                 return ERROR_OK;
798         
799         return flash_driver_erase(c, first, last);
800 }
801
802 /* write (optional verify) an image to flash memory of the given target */
803 int flash_write(target_t *target, image_t *image, u32 *written, int erase)
804 {
805         int retval;
806
807         int section;
808         u32 section_offset;
809         flash_bank_t *c;
810         
811         section = 0;
812         section_offset = 0;
813
814         if (written)
815                 *written = 0;
816         
817         if (erase)
818         {
819                 /* assume all sectors need erasing - stops any problems
820                  * when flash_write is called multiple times */
821                 
822                 flash_set_dirty();
823         }
824         
825         /* loop until we reach end of the image */
826         while (section < image->num_sections)
827         {
828                 u32 buffer_size;
829                 u8 *buffer;
830                 int section_first;
831                 int section_last;
832                 u32 run_address = image->sections[section].base_address + section_offset;
833                 u32 run_size = image->sections[section].size - section_offset;
834
835                 if (image->sections[section].size ==  0)
836                 {
837                         WARNING("empty section %d", section);
838                         section++;
839                         section_offset = 0;
840                         continue;
841                 }
842
843                 /* find the corresponding flash bank */
844                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
845                 {
846                         section++; /* and skip it */
847                         section_offset = 0;
848                         continue;
849                 }
850
851                 /* collect consecutive sections which fall into the same bank */
852                 section_first = section;
853                 section_last = section;
854                 while ((run_address + run_size < c->base + c->size)
855                                 && (section_last + 1 < image->num_sections))
856                 {
857                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
858                         {
859                                 DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
860                                 break;
861                         }
862                         if (image->sections[section_last + 1].base_address != (run_address + run_size))
863                                 break;
864                         run_size += image->sections[++section_last].size;
865                 }
866
867                 /* fit the run into bank constraints */
868                 if (run_address + run_size > c->base + c->size)
869                         run_size = c->base + c->size - run_address;
870
871                 /* allocate buffer */
872                 buffer = malloc(run_size);
873                 buffer_size = 0;
874
875                 /* read sections to the buffer */
876                 while (buffer_size < run_size)
877                 {
878                         u32 size_read;
879                         
880                         if (buffer_size - run_size <= image->sections[section].size - section_offset)
881                                 size_read = buffer_size - run_size;
882                         else
883                                 size_read = image->sections[section].size - section_offset;
884                         
885                         if ((retval = image_read_section(image, section, section_offset,
886                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
887                         {
888                                 free(buffer);
889                                 
890                                 return retval;
891                         }
892
893                         buffer_size += size_read;
894                         section_offset += size_read;
895
896                         if (section_offset >= image->sections[section].size)
897                         {
898                                 section++;
899                                 section_offset = 0;
900                         }
901                 }
902
903                 retval = ERROR_OK;
904                 
905                 if (erase)
906                 {
907                         /* calculate and erase sectors */
908                         retval = flash_erase_address_range( target, run_address, run_size );
909                 }
910                 
911                 if (retval == ERROR_OK)
912                 {
913                         /* write flash sectors */
914                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
915                 }
916                 
917                 free(buffer);
918
919                 if (retval != ERROR_OK)
920                 {
921                                 return retval; /* abort operation */
922                         }
923
924                 if (written != NULL)
925                         *written += run_size; /* add run size to total written counter */
926         }
927
928         return ERROR_OK;
929 }
930
931 int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
932 {
933         if (argc != 1)
934         {
935                 return ERROR_COMMAND_SYNTAX_ERROR;
936
937         }
938         
939         if (strcmp(args[0], "on") == 0)
940                 auto_erase = 1;
941         else if (strcmp(args[0], "off") == 0)
942                 auto_erase = 0;
943         else 
944                 return ERROR_COMMAND_SYNTAX_ERROR;
945         
946         return ERROR_OK;
947 }