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