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