]> git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_nand.c
projects / people / ms / u-boot.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
moving files from yaffs2/direct/ to yaffs2/ and deleting all symlinks
[people/ms/u-boot.git] / common / cmd_nand.c
1 /*
2 * Driver for NAND support, Rick Bronson
3 * borrowed heavily from:
4 * (c) 1999 Machine Vision Holdings, Inc.
5 * (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
6 *
7 * Added 16-bit nand support
8 * (C) 2004 Texas Instruments
9 */
10
11 #include <common.h>
12
13
14 #ifndef CFG_NAND_LEGACY
15 /*
16 *
17 * New NAND support
18 *
19 */
20 #include <common.h>
21 #include <linux/mtd/mtd.h>
22
23 #if defined(CONFIG_CMD_NAND)
24
25 #include <command.h>
26 #include <watchdog.h>
27 #include <malloc.h>
28 #include <asm/byteorder.h>
29 #include <jffs2/jffs2.h>
30 #include <nand.h>
31
32 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
33
34 /* parition handling routines */
35 int mtdparts_init(void);
36 int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
37 int find_dev_and_part(const char *id, struct mtd_device **dev,
38 u8 *part_num, struct part_info **part);
39 #endif
40
41 static int nand_dump_oob(nand_info_t *nand, ulong off)
42 {
43 return 0;
44 }
45
46 static int nand_dump(nand_info_t *nand, ulong off)
47 {
48 int i;
49 u_char *buf, *p;
50
51 buf = malloc(nand->writesize + nand->oobsize);
52 if (!buf) {
53 puts("No memory for page buffer\n");
54 return 1;
55 }
56 off &= ~(nand->writesize - 1);
57 size_t dummy;
58 loff_t addr = (loff_t) off;
59 i = nand->read(nand, addr, nand->writesize, &dummy, buf);
60 if (i < 0) {
61 printf("Error (%d) reading page %08lx\n", i, off);
62 free(buf);
63 return 1;
64 }
65 printf("Page %08lx dump:\n", off);
66 i = nand->writesize >> 4; p = buf;
67 while (i--) {
68 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
69 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
70 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
71 p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
72 p += 16;
73 }
74 puts("OOB:\n");
75 i = nand->oobsize >> 3;
76 while (i--) {
77 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
78 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
79 p += 8;
80 }
81 free(buf);
82
83 return 0;
84 }
85
86 /* ------------------------------------------------------------------------- */
87
88 static inline int str2long(char *p, ulong *num)
89 {
90 char *endptr;
91
92 *num = simple_strtoul(p, &endptr, 16);
93 return (*p != '\0' && *endptr == '\0') ? 1 : 0;
94 }
95
96 static int
97 arg_off_size(int argc, char *argv[], nand_info_t *nand, ulong *off, size_t *size)
98 {
99 int idx = nand_curr_device;
100 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
101 struct mtd_device *dev;
102 struct part_info *part;
103 u8 pnum;
104
105 if (argc >= 1 && !(str2long(argv[0], off))) {
106 if ((mtdparts_init() == 0) &&
107 (find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) {
108 if (dev->id->type != MTD_DEV_TYPE_NAND) {
109 puts("not a NAND device\n");
110 return -1;
111 }
112 *off = part->offset;
113 if (argc >= 2) {
114 if (!(str2long(argv[1], (ulong *)size))) {
115 printf("'%s' is not a number\n", argv[1]);
116 return -1;
117 }
118 if (*size > part->size)
119 *size = part->size;
120 } else {
121 *size = part->size;
122 }
123 idx = dev->id->num;
124 *nand = nand_info[idx];
125 goto out;
126 }
127 }
128 #endif
129
130 if (argc >= 1) {
131 if (!(str2long(argv[0], off))) {
132 printf("'%s' is not a number\n", argv[0]);
133 return -1;
134 }
135 } else {
136 *off = 0;
137 }
138
139 if (argc >= 2) {
140 if (!(str2long(argv[1], (ulong *)size))) {
141 printf("'%s' is not a number\n", argv[1]);
142 return -1;
143 }
144 } else {
145 *size = nand->size - *off;
146 }
147
148 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
149 out:
150 #endif
151 printf("device %d ", idx);
152 if (*size == nand->size)
153 puts("whole chip\n");
154 else
155 printf("offset 0x%lx, size 0x%x\n", *off, *size);
156 return 0;
157 }
158
159 int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
160 {
161 int i, dev, ret = 0;
162 ulong addr, off;
163 size_t size;
164 char *cmd, *s;
165 nand_info_t *nand;
166 #ifdef CFG_NAND_QUIET
167 int quiet = CFG_NAND_QUIET;
168 #else
169 int quiet = 0;
170 #endif
171 const char *quiet_str = getenv("quiet");
172
173 /* at least two arguments please */
174 if (argc < 2)
175 goto usage;
176
177 if (quiet_str)
178 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
179
180 cmd = argv[1];
181
182 if (strcmp(cmd, "info") == 0) {
183
184 putc('\n');
185 for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
186 if (nand_info[i].name)
187 printf("Device %d: %s, sector size %u KiB\n",
188 i, nand_info[i].name,
189 nand_info[i].erasesize >> 10);
190 }
191 return 0;
192 }
193
194 if (strcmp(cmd, "device") == 0) {
195
196 if (argc < 3) {
197 if ((nand_curr_device < 0) ||
198 (nand_curr_device >= CFG_MAX_NAND_DEVICE))
199 puts("\nno devices available\n");
200 else
201 printf("\nDevice %d: %s\n", nand_curr_device,
202 nand_info[nand_curr_device].name);
203 return 0;
204 }
205 dev = (int)simple_strtoul(argv[2], NULL, 10);
206 if (dev < 0 || dev >= CFG_MAX_NAND_DEVICE || !nand_info[dev].name) {
207 puts("No such device\n");
208 return 1;
209 }
210 printf("Device %d: %s", dev, nand_info[dev].name);
211 puts("... is now current device\n");
212 nand_curr_device = dev;
213
214 #ifdef CFG_NAND_SELECT_DEVICE
215 /*
216 * Select the chip in the board/cpu specific driver
217 */
218 board_nand_select_device(nand_info[dev].priv, dev);
219 #endif
220
221 return 0;
222 }
223
224 if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 &&
225 strncmp(cmd, "dump", 4) != 0 &&
226 strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 &&
227 strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 &&
228 strcmp(cmd, "biterr") != 0 &&
229 strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 )
230 goto usage;
231
232 /* the following commands operate on the current device */
233 if (nand_curr_device < 0 || nand_curr_device >= CFG_MAX_NAND_DEVICE ||
234 !nand_info[nand_curr_device].name) {
235 puts("\nno devices available\n");
236 return 1;
237 }
238 nand = &nand_info[nand_curr_device];
239
240 if (strcmp(cmd, "bad") == 0) {
241 printf("\nDevice %d bad blocks:\n", nand_curr_device);
242 for (off = 0; off < nand->size; off += nand->erasesize)
243 if (nand_block_isbad(nand, off))
244 printf(" %08lx\n", off);
245 return 0;
246 }
247
248 /*
249 * Syntax is:
250 * 0 1 2 3 4
251 * nand erase [clean] [off size]
252 */
253 if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) {
254 nand_erase_options_t opts;
255 /* "clean" at index 2 means request to write cleanmarker */
256 int clean = argc > 2 && !strcmp("clean", argv[2]);
257 int o = clean ? 3 : 2;
258 int scrub = !strcmp(cmd, "scrub");
259
260 printf("\nNAND %s: ", scrub ? "scrub" : "erase");
261 /* skip first two or three arguments, look for offset and size */
262 if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0)
263 return 1;
264
265 memset(&opts, 0, sizeof(opts));
266 opts.offset = off;
267 opts.length = size;
268 opts.jffs2 = clean;
269 opts.quiet = quiet;
270
271 if (scrub) {
272 puts("Warning: "
273 "scrub option will erase all factory set "
274 "bad blocks!\n"
275 " "
276 "There is no reliable way to recover them.\n"
277 " "
278 "Use this command only for testing purposes "
279 "if you\n"
280 " "
281 "are sure of what you are doing!\n"
282 "\nReally scrub this NAND flash? <y/N>\n");
283
284 if (getc() == 'y' && getc() == '\r') {
285 opts.scrub = 1;
286 } else {
287 puts("scrub aborted\n");
288 return -1;
289 }
290 }
291 ret = nand_erase_opts(nand, &opts);
292 printf("%s\n", ret ? "ERROR" : "OK");
293
294 return ret == 0 ? 0 : 1;
295 }
296
297 if (strncmp(cmd, "dump", 4) == 0) {
298 if (argc < 3)
299 goto usage;
300
301 s = strchr(cmd, '.');
302 off = (int)simple_strtoul(argv[2], NULL, 16);
303
304 if (s != NULL && strcmp(s, ".oob") == 0)
305 ret = nand_dump_oob(nand, off);
306 else
307 ret = nand_dump(nand, off);
308
309 return ret == 0 ? 1 : 0;
310
311 }
312
313 /* read write */
314 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
315 int read;
316
317 if (argc < 4)
318 goto usage;
319
320 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
321
322 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
323 printf("\nNAND %s: ", read ? "read" : "write");
324 if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0)
325 return 1;
326
327 s = strchr(cmd, '.');
328 if (s != NULL &&
329 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i"))) {
330 if (read) {
331 /* read */
332 nand_read_options_t opts;
333 memset(&opts, 0, sizeof(opts));
334 opts.buffer = (u_char*) addr;
335 opts.length = size;
336 opts.offset = off;
337 opts.quiet = quiet;
338 /*
339 * ! BROKEN !
340 *
341 * TODO: Function must be implemented
342 *
343 * ret = nand_read_opts(nand, &opts);
344 */
345 } else {
346 /* write */
347 mtd_oob_ops_t opts;
348 memset(&opts, 0, sizeof(opts));
349 opts.datbuf = (u_char*) addr;
350 opts.len = size;
351 opts.ooblen = 64;
352 opts.mode = MTD_OOB_AUTO;
353 ret = nand_write_opts(nand, off, &opts);
354 }
355 } else if (s != NULL && !strcmp(s, ".oob")) {
356 /* out-of-band data */
357 mtd_oob_ops_t ops = {
358 .oobbuf = (u8 *)addr,
359 .ooblen = size,
360 .mode = MTD_OOB_RAW
361 };
362
363 if (read)
364 ret = nand->read_oob(nand, off, &ops);
365 else
366 ret = nand->write_oob(nand, off, &ops);
367 } else {
368 if (read)
369 ret = nand_read(nand, off, &size, (u_char *)addr);
370 else
371 ret = nand_write(nand, off, &size, (u_char *)addr);
372 }
373
374 printf(" %d bytes %s: %s\n", size,
375 read ? "read" : "written", ret ? "ERROR" : "OK");
376
377 return ret == 0 ? 0 : 1;
378 }
379
380 if (strcmp(cmd, "markbad") == 0) {
381 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
382
383 int ret = nand->block_markbad(nand, addr);
384 if (ret == 0) {
385 printf("block 0x%08lx successfully marked as bad\n",
386 (ulong) addr);
387 return 0;
388 } else {
389 printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
390 (ulong) addr, ret);
391 }
392 return 1;
393 }
394 if (strcmp(cmd, "biterr") == 0) {
395 /* todo */
396 return 1;
397 }
398
399 if (strcmp(cmd, "lock") == 0) {
400 int tight = 0;
401 int status = 0;
402 if (argc == 3) {
403 if (!strcmp("tight", argv[2]))
404 tight = 1;
405 if (!strcmp("status", argv[2]))
406 status = 1;
407 }
408 /*
409 * ! BROKEN !
410 *
411 * TODO: must be implemented and tested by someone with HW
412 */
413 #if 0
414 if (status) {
415 ulong block_start = 0;
416 ulong off;
417 int last_status = -1;
418
419 struct nand_chip *nand_chip = nand->priv;
420 /* check the WP bit */
421 nand_chip->cmdfunc (nand, NAND_CMD_STATUS, -1, -1);
422 printf("device is %swrite protected\n",
423 (nand_chip->read_byte(nand) & 0x80 ?
424 "NOT " : ""));
425
426 for (off = 0; off < nand->size; off += nand->writesize) {
427 int s = nand_get_lock_status(nand, off);
428
429 /* print message only if status has changed
430 * or at end of chip
431 */
432 if (off == nand->size - nand->writesize
433 || (s != last_status && off != 0)) {
434
435 printf("%08lx - %08lx: %8d pages %s%s%s\n",
436 block_start,
437 off-1,
438 (off-block_start)/nand->writesize,
439 ((last_status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
440 ((last_status & NAND_LOCK_STATUS_LOCK) ? "LOCK " : ""),
441 ((last_status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
442 }
443
444 last_status = s;
445 }
446 } else {
447 if (!nand_lock(nand, tight)) {
448 puts("NAND flash successfully locked\n");
449 } else {
450 puts("Error locking NAND flash\n");
451 return 1;
452 }
453 }
454 #endif
455 return 0;
456 }
457
458 if (strcmp(cmd, "unlock") == 0) {
459 if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0)
460 return 1;
461
462 /*
463 * ! BROKEN !
464 *
465 * TODO: must be implemented and tested by someone with HW
466 */
467 #if 0
468 if (!nand_unlock(nand, off, size)) {
469 puts("NAND flash successfully unlocked\n");
470 } else {
471 puts("Error unlocking NAND flash, "
472 "write and erase will probably fail\n");
473 return 1;
474 }
475 #endif
476 return 0;
477 }
478
479 usage:
480 printf("Usage:\n%s\n", cmdtp->usage);
481 return 1;
482 }
483
484 U_BOOT_CMD(nand, 5, 1, do_nand,
485 "nand - NAND sub-system\n",
486 "info - show available NAND devices\n"
487 "nand device [dev] - show or set current device\n"
488 "nand read[.jffs2] - addr off|partition size\n"
489 "nand write[.jffs2] - addr off|partition size\n"
490 " read/write 'size' bytes starting at offset 'off'\n"
491 " to/from memory address 'addr'\n"
492 "nand erase [clean] [off size] - erase 'size' bytes from\n"
493 " offset 'off' (entire device if not specified)\n"
494 "nand bad - show bad blocks\n"
495 "nand dump[.oob] off - dump page\n"
496 "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n"
497 "nand markbad off - mark bad block at offset (UNSAFE)\n"
498 "nand biterr off - make a bit error at offset (UNSAFE)\n"
499 "nand lock [tight] [status]\n"
500 " bring nand to lock state or display locked pages\n"
501 "nand unlock [offset] [size] - unlock section\n");
502
503 static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand,
504 ulong offset, ulong addr, char *cmd)
505 {
506 int r;
507 char *ep, *s;
508 size_t cnt;
509 image_header_t *hdr;
510 int jffs2 = 0;
511 #if defined(CONFIG_FIT)
512 const void *fit_hdr = NULL;
513 #endif
514
515 s = strchr(cmd, '.');
516 if (s != NULL &&
517 (!strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")))
518 jffs2 = 1;
519
520 printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset);
521
522 cnt = nand->writesize;
523 r = nand_read(nand, offset, &cnt, (u_char *) addr);
524 if (r) {
525 puts("** Read error\n");
526 show_boot_progress (-56);
527 return 1;
528 }
529 show_boot_progress (56);
530
531 switch (genimg_get_format ((void *)addr)) {
532 case IMAGE_FORMAT_LEGACY:
533 hdr = (image_header_t *)addr;
534
535 show_boot_progress (57);
536 image_print_contents (hdr);
537
538 cnt = image_get_image_size (hdr);
539 break;
540 #if defined(CONFIG_FIT)
541 case IMAGE_FORMAT_FIT:
542 fit_hdr = (const void *)addr;
543 puts ("Fit image detected...\n");
544
545 cnt = fit_get_size (fit_hdr);
546 break;
547 #endif
548 default:
549 show_boot_progress (-57);
550 puts ("** Unknown image type\n");
551 return 1;
552 }
553 show_boot_progress (57);
554
555 r = nand_read(nand, offset, &cnt, (u_char *) addr);
556 if (r) {
557 puts("** Read error\n");
558 show_boot_progress (-58);
559 return 1;
560 }
561 show_boot_progress (58);
562
563 #if defined(CONFIG_FIT)
564 /* This cannot be done earlier, we need complete FIT image in RAM first */
565 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
566 if (!fit_check_format (fit_hdr)) {
567 show_boot_progress (-150);
568 puts ("** Bad FIT image format\n");
569 return 1;
570 }
571 show_boot_progress (151);
572 fit_print_contents (fit_hdr);
573 }
574 #endif
575
576 /* Loading ok, update default load address */
577
578 load_addr = addr;
579
580 /* Check if we should attempt an auto-start */
581 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) {
582 char *local_args[2];
583 extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
584
585 local_args[0] = cmd;
586 local_args[1] = NULL;
587
588 printf("Automatic boot of image at addr 0x%08lx ...\n", addr);
589
590 do_bootm(cmdtp, 0, 1, local_args);
591 return 1;
592 }
593 return 0;
594 }
595
596 int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
597 {
598 char *boot_device = NULL;
599 int idx;
600 ulong addr, offset = 0;
601 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
602 struct mtd_device *dev;
603 struct part_info *part;
604 u8 pnum;
605
606 if (argc >= 2) {
607 char *p = (argc == 2) ? argv[1] : argv[2];
608 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
609 (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
610 if (dev->id->type != MTD_DEV_TYPE_NAND) {
611 puts("Not a NAND device\n");
612 return 1;
613 }
614 if (argc > 3)
615 goto usage;
616 if (argc == 3)
617 addr = simple_strtoul(argv[1], NULL, 16);
618 else
619 addr = CFG_LOAD_ADDR;
620 return nand_load_image(cmdtp, &nand_info[dev->id->num],
621 part->offset, addr, argv[0]);
622 }
623 }
624 #endif
625
626 show_boot_progress(52);
627 switch (argc) {
628 case 1:
629 addr = CFG_LOAD_ADDR;
630 boot_device = getenv("bootdevice");
631 break;
632 case 2:
633 addr = simple_strtoul(argv[1], NULL, 16);
634 boot_device = getenv("bootdevice");
635 break;
636 case 3:
637 addr = simple_strtoul(argv[1], NULL, 16);
638 boot_device = argv[2];
639 break;
640 case 4:
641 addr = simple_strtoul(argv[1], NULL, 16);
642 boot_device = argv[2];
643 offset = simple_strtoul(argv[3], NULL, 16);
644 break;
645 default:
646 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
647 usage:
648 #endif
649 printf("Usage:\n%s\n", cmdtp->usage);
650 show_boot_progress(-53);
651 return 1;
652 }
653
654 show_boot_progress(53);
655 if (!boot_device) {
656 puts("\n** No boot device **\n");
657 show_boot_progress(-54);
658 return 1;
659 }
660 show_boot_progress(54);
661
662 idx = simple_strtoul(boot_device, NULL, 16);
663
664 if (idx < 0 || idx >= CFG_MAX_NAND_DEVICE || !nand_info[idx].name) {
665 printf("\n** Device %d not available\n", idx);
666 show_boot_progress(-55);
667 return 1;
668 }
669 show_boot_progress(55);
670
671 return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]);
672 }
673
674 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
675 "nboot - boot from NAND device\n",
676 "[.jffs2] [partition] | [[[loadAddr] dev] offset]\n");
677
678 #endif
679
680 #else /* CFG_NAND_LEGACY */
681 /*
682 *
683 * Legacy NAND support - to be phased out
684 *
685 */
686 #include <command.h>
687 #include <malloc.h>
688 #include <asm/io.h>
689 #include <watchdog.h>
690
691 #ifdef CONFIG_show_boot_progress
692 # include <status_led.h>
693 # define show_boot_progress(arg) show_boot_progress(arg)
694 #else
695 # define show_boot_progress(arg)
696 #endif
697
698 #if defined(CONFIG_CMD_NAND)
699 #include <linux/mtd/nand_legacy.h>
700 #if 0
701 #include <linux/mtd/nand_ids.h>
702 #include <jffs2/jffs2.h>
703 #endif
704
705 #ifdef CONFIG_OMAP1510
706 void archflashwp(void *archdata, int wp);
707 #endif
708
709 #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
710
711 #undef NAND_DEBUG
712 #undef PSYCHO_DEBUG
713
714 /* ****************** WARNING *********************
715 * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will
716 * erase (or at least attempt to erase) blocks that are marked
717 * bad. This can be very handy if you are _sure_ that the block
718 * is OK, say because you marked a good block bad to test bad
719 * block handling and you are done testing, or if you have
720 * accidentally marked blocks bad.
721 *
722 * Erasing factory marked bad blocks is a _bad_ idea. If the
723 * erase succeeds there is no reliable way to find them again,
724 * and attempting to program or erase bad blocks can affect
725 * the data in _other_ (good) blocks.
726 */
727 #define ALLOW_ERASE_BAD_DEBUG 0
728
729 #define CONFIG_MTD_NAND_ECC /* enable ECC */
730 #define CONFIG_MTD_NAND_ECC_JFFS2
731
732 /* bits for nand_legacy_rw() `cmd'; or together as needed */
733 #define NANDRW_READ 0x01
734 #define NANDRW_WRITE 0x00
735 #define NANDRW_JFFS2 0x02
736 #define NANDRW_JFFS2_SKIP 0x04
737
738 /*
739 * Imports from nand_legacy.c
740 */
741 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
742 extern int curr_device;
743 extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs,
744 size_t len, int clean);
745 extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start,
746 size_t len, size_t *retlen, u_char *buf);
747 extern void nand_print(struct nand_chip *nand);
748 extern void nand_print_bad(struct nand_chip *nand);
749 extern int nand_read_oob(struct nand_chip *nand, size_t ofs,
750 size_t len, size_t *retlen, u_char *buf);
751 extern int nand_write_oob(struct nand_chip *nand, size_t ofs,
752 size_t len, size_t *retlen, const u_char *buf);
753
754
755 int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
756 {
757 int rcode = 0;
758
759 switch (argc) {
760 case 0:
761 case 1:
762 printf ("Usage:\n%s\n", cmdtp->usage);
763 return 1;
764 case 2:
765 if (strcmp (argv[1], "info") == 0) {
766 int i;
767
768 putc ('\n');
769
770 for (i = 0; i < CFG_MAX_NAND_DEVICE; ++i) {
771 if (nand_dev_desc[i].ChipID ==
772 NAND_ChipID_UNKNOWN)
773 continue; /* list only known devices */
774 printf ("Device %d: ", i);
775 nand_print (&nand_dev_desc[i]);
776 }
777 return 0;
778
779 } else if (strcmp (argv[1], "device") == 0) {
780 if ((curr_device < 0)
781 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
782 puts ("\nno devices available\n");
783 return 1;
784 }
785 printf ("\nDevice %d: ", curr_device);
786 nand_print (&nand_dev_desc[curr_device]);
787 return 0;
788
789 } else if (strcmp (argv[1], "bad") == 0) {
790 if ((curr_device < 0)
791 || (curr_device >= CFG_MAX_NAND_DEVICE)) {
792 puts ("\nno devices available\n");
793 return 1;
794 }
795 printf ("\nDevice %d bad blocks:\n", curr_device);
796 nand_print_bad (&nand_dev_desc[curr_device]);
797 return 0;
798
799 }
800 printf ("Usage:\n%s\n", cmdtp->usage);
801 return 1;
802 case 3:
803 if (strcmp (argv[1], "device") == 0) {
804 int dev = (int) simple_strtoul (argv[2], NULL, 10);
805
806 printf ("\nDevice %d: ", dev);
807 if (dev >= CFG_MAX_NAND_DEVICE) {
808 puts ("unknown device\n");
809 return 1;
810 }
811 nand_print (&nand_dev_desc[dev]);
812 /*nand_print (dev); */
813
814 if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) {
815 return 1;
816 }
817
818 curr_device = dev;
819
820 puts ("... is now current device\n");
821
822 return 0;
823 } else if (strcmp (argv[1], "erase") == 0
824 && strcmp (argv[2], "clean") == 0) {
825 struct nand_chip *nand = &nand_dev_desc[curr_device];
826 ulong off = 0;
827 ulong size = nand->totlen;
828 int ret;
829
830 printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size);
831
832 ret = nand_legacy_erase (nand, off, size, 1);
833
834 printf ("%s\n", ret ? "ERROR" : "OK");
835
836 return ret;
837 }
838
839 printf ("Usage:\n%s\n", cmdtp->usage);
840 return 1;
841 default:
842 /* at least 4 args */
843
844 if (strncmp (argv[1], "read", 4) == 0 ||
845 strncmp (argv[1], "write", 5) == 0) {
846 ulong addr = simple_strtoul (argv[2], NULL, 16);
847 off_t off = simple_strtoul (argv[3], NULL, 16);
848 size_t size = simple_strtoul (argv[4], NULL, 16);
849 int cmd = (strncmp (argv[1], "read", 4) == 0) ?
850 NANDRW_READ : NANDRW_WRITE;
851 size_t total;
852 int ret;
853 char *cmdtail = strchr (argv[1], '.');
854
855 if (cmdtail && !strncmp (cmdtail, ".oob", 2)) {
856 /* read out-of-band data */
857 if (cmd & NANDRW_READ) {
858 ret = nand_read_oob (nand_dev_desc + curr_device,
859 off, size, &total,
860 (u_char *) addr);
861 } else {
862 ret = nand_write_oob (nand_dev_desc + curr_device,
863 off, size, &total,
864 (u_char *) addr);
865 }
866 return ret;
867 } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2))
868 cmd |= NANDRW_JFFS2; /* skip bad blocks */
869 else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 2)) {
870 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
871 if (cmd & NANDRW_READ)
872 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
873 }
874 #ifdef SXNI855T
875 /* need ".e" same as ".j" for compatibility with older units */
876 else if (cmdtail && !strcmp (cmdtail, ".e"))
877 cmd |= NANDRW_JFFS2; /* skip bad blocks */
878 #endif
879 #ifdef CFG_NAND_SKIP_BAD_DOT_I
880 /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */
881 /* ".i" for image -> read skips bad block (no 0xff) */
882 else if (cmdtail && !strcmp (cmdtail, ".i")) {
883 cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */
884 if (cmd & NANDRW_READ)
885 cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */
886 }
887 #endif /* CFG_NAND_SKIP_BAD_DOT_I */
888 else if (cmdtail) {
889 printf ("Usage:\n%s\n", cmdtp->usage);
890 return 1;
891 }
892
893 printf ("\nNAND %s: device %d offset %ld, size %lu ...\n",
894 (cmd & NANDRW_READ) ? "read" : "write",
895 curr_device, off, (ulong)size);
896
897 ret = nand_legacy_rw (nand_dev_desc + curr_device,
898 cmd, off, size,
899 &total, (u_char *) addr);
900
901 printf (" %d bytes %s: %s\n", total,
902 (cmd & NANDRW_READ) ? "read" : "written",
903 ret ? "ERROR" : "OK");
904
905 return ret;
906 } else if (strcmp (argv[1], "erase") == 0 &&
907 (argc == 4 || strcmp ("clean", argv[2]) == 0)) {
908 int clean = argc == 5;
909 ulong off =
910 simple_strtoul (argv[2 + clean], NULL, 16);
911 ulong size =
912 simple_strtoul (argv[3 + clean], NULL, 16);
913 int ret;
914
915 printf ("\nNAND erase: device %d offset %ld, size %ld ...\n",
916 curr_device, off, size);
917
918 ret = nand_legacy_erase (nand_dev_desc + curr_device,
919 off, size, clean);
920
921 printf ("%s\n", ret ? "ERROR" : "OK");
922
923 return ret;
924 } else {
925 printf ("Usage:\n%s\n", cmdtp->usage);
926 rcode = 1;
927 }
928
929 return rcode;
930 }
931 }
932
933 U_BOOT_CMD(
934 nand, 5, 1, do_nand,
935 "nand - legacy NAND sub-system\n",
936 "info - show available NAND devices\n"
937 "nand device [dev] - show or set current device\n"
938 "nand read[.jffs2[s]] addr off size\n"
939 "nand write[.jffs2] addr off size - read/write `size' bytes starting\n"
940 " at offset `off' to/from memory address `addr'\n"
941 "nand erase [clean] [off size] - erase `size' bytes from\n"
942 " offset `off' (entire device if not specified)\n"
943 "nand bad - show bad blocks\n"
944 "nand read.oob addr off size - read out-of-band data\n"
945 "nand write.oob addr off size - read out-of-band data\n"
946 );
947
948 int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
949 {
950 char *boot_device = NULL;
951 char *ep;
952 int dev;
953 ulong cnt;
954 ulong addr;
955 ulong offset = 0;
956 image_header_t *hdr;
957 int rcode = 0;
958 #if defined(CONFIG_FIT)
959 const void *fit_hdr = NULL;
960 #endif
961
962 show_boot_progress (52);
963 switch (argc) {
964 case 1:
965 addr = CFG_LOAD_ADDR;
966 boot_device = getenv ("bootdevice");
967 break;
968 case 2:
969 addr = simple_strtoul(argv[1], NULL, 16);
970 boot_device = getenv ("bootdevice");
971 break;
972 case 3:
973 addr = simple_strtoul(argv[1], NULL, 16);
974 boot_device = argv[2];
975 break;
976 case 4:
977 addr = simple_strtoul(argv[1], NULL, 16);
978 boot_device = argv[2];
979 offset = simple_strtoul(argv[3], NULL, 16);
980 break;
981 default:
982 printf ("Usage:\n%s\n", cmdtp->usage);
983 show_boot_progress (-53);
984 return 1;
985 }
986
987 show_boot_progress (53);
988 if (!boot_device) {
989 puts ("\n** No boot device **\n");
990 show_boot_progress (-54);
991 return 1;
992 }
993 show_boot_progress (54);
994
995 dev = simple_strtoul(boot_device, &ep, 16);
996
997 if ((dev >= CFG_MAX_NAND_DEVICE) ||
998 (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) {
999 printf ("\n** Device %d not available\n", dev);
1000 show_boot_progress (-55);
1001 return 1;
1002 }
1003 show_boot_progress (55);
1004
1005 printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n",
1006 dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR,
1007 offset);
1008
1009 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset,
1010 SECTORSIZE, NULL, (u_char *)addr)) {
1011 printf ("** Read error on %d\n", dev);
1012 show_boot_progress (-56);
1013 return 1;
1014 }
1015 show_boot_progress (56);
1016
1017 switch (genimg_get_format ((void *)addr)) {
1018 case IMAGE_FORMAT_LEGACY:
1019 hdr = (image_header_t *)addr;
1020 image_print_contents (hdr);
1021
1022 cnt = image_get_image_size (hdr);
1023 cnt -= SECTORSIZE;
1024 break;
1025 #if defined(CONFIG_FIT)
1026 case IMAGE_FORMAT_FIT:
1027 fit_hdr = (const void *)addr;
1028 puts ("Fit image detected...\n");
1029
1030 cnt = fit_get_size (fit_hdr);
1031 break;
1032 #endif
1033 default:
1034 show_boot_progress (-57);
1035 puts ("** Unknown image type\n");
1036 return 1;
1037 }
1038 show_boot_progress (57);
1039
1040 if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ,
1041 offset + SECTORSIZE, cnt, NULL,
1042 (u_char *)(addr+SECTORSIZE))) {
1043 printf ("** Read error on %d\n", dev);
1044 show_boot_progress (-58);
1045 return 1;
1046 }
1047 show_boot_progress (58);
1048
1049 #if defined(CONFIG_FIT)
1050 /* This cannot be done earlier, we need complete FIT image in RAM first */
1051 if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
1052 if (!fit_check_format (fit_hdr)) {
1053 show_boot_progress (-150);
1054 puts ("** Bad FIT image format\n");
1055 return 1;
1056 }
1057 show_boot_progress (151);
1058 fit_print_contents (fit_hdr);
1059 }
1060 #endif
1061
1062 /* Loading ok, update default load address */
1063
1064 load_addr = addr;
1065
1066 /* Check if we should attempt an auto-start */
1067 if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) {
1068 char *local_args[2];
1069 extern int do_bootm (cmd_tbl_t *, int, int, char *[]);
1070
1071 local_args[0] = argv[0];
1072 local_args[1] = NULL;
1073
1074 printf ("Automatic boot of image at addr 0x%08lx ...\n", addr);
1075
1076 do_bootm (cmdtp, 0, 1, local_args);
1077 rcode = 1;
1078 }
1079 return rcode;
1080 }
1081
1082 U_BOOT_CMD(
1083 nboot, 4, 1, do_nandboot,
1084 "nboot - boot from NAND device\n",
1085 "loadAddr dev\n"
1086 );
1087
1088 #endif
1089
1090 #endif /* CFG_NAND_LEGACY */
"Das U-Boot" Source Tree