Merge git://git.denx.de/u-boot-fsl-qoriq
[platform/kernel/u-boot.git] / 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  * Ported 'dynenv' to 'nand env.oob' command
8  * (C) 2010 Nanometrics, Inc.
9  * 'dynenv' -- Dynamic environment offset in NAND OOB
10  * (C) Copyright 2006-2007 OpenMoko, Inc.
11  * Added 16-bit nand support
12  * (C) 2004 Texas Instruments
13  *
14  * Copyright 2010, 2012 Freescale Semiconductor
15  * The portions of this file whose copyright is held by Freescale and which
16  * are not considered a derived work of GPL v2-only code may be distributed
17  * and/or modified under the terms of the GNU General Public License as
18  * published by the Free Software Foundation; either version 2 of the
19  * License, or (at your option) any later version.
20  */
21
22 #include <common.h>
23 #include <linux/mtd/mtd.h>
24 #include <command.h>
25 #include <console.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_MTDPARTS)
33
34 /* partition 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(struct mtd_info *mtd, ulong off, int only_oob,
42                      int repeat)
43 {
44         int i;
45         u_char *datbuf, *oobbuf, *p;
46         static loff_t last;
47         int ret = 0;
48
49         if (repeat)
50                 off = last + mtd->writesize;
51
52         last = off;
53
54         datbuf = memalign(ARCH_DMA_MINALIGN, mtd->writesize);
55         if (!datbuf) {
56                 puts("No memory for page buffer\n");
57                 return 1;
58         }
59
60         oobbuf = memalign(ARCH_DMA_MINALIGN, mtd->oobsize);
61         if (!oobbuf) {
62                 puts("No memory for page buffer\n");
63                 ret = 1;
64                 goto free_dat;
65         }
66         off &= ~(mtd->writesize - 1);
67         loff_t addr = (loff_t) off;
68         struct mtd_oob_ops ops;
69         memset(&ops, 0, sizeof(ops));
70         ops.datbuf = datbuf;
71         ops.oobbuf = oobbuf;
72         ops.len = mtd->writesize;
73         ops.ooblen = mtd->oobsize;
74         ops.mode = MTD_OPS_RAW;
75         i = mtd_read_oob(mtd, addr, &ops);
76         if (i < 0) {
77                 printf("Error (%d) reading page %08lx\n", i, off);
78                 ret = 1;
79                 goto free_all;
80         }
81         printf("Page %08lx dump:\n", off);
82
83         if (!only_oob) {
84                 i = mtd->writesize >> 4;
85                 p = datbuf;
86
87                 while (i--) {
88                         printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
89                                "  %02x %02x %02x %02x %02x %02x %02x %02x\n",
90                                p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
91                                p[8], p[9], p[10], p[11], p[12], p[13], p[14],
92                                p[15]);
93                         p += 16;
94                 }
95         }
96
97         puts("OOB:\n");
98         i = mtd->oobsize >> 3;
99         p = oobbuf;
100         while (i--) {
101                 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
102                        p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
103                 p += 8;
104         }
105
106 free_all:
107         free(oobbuf);
108 free_dat:
109         free(datbuf);
110
111         return ret;
112 }
113
114 /* ------------------------------------------------------------------------- */
115
116 static int set_dev(int dev)
117 {
118         if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[dev]) {
119                 puts("No such device\n");
120                 return -1;
121         }
122
123         if (nand_curr_device == dev)
124                 return 0;
125
126         printf("Device %d: %s", dev, nand_info[dev]->name);
127         puts("... is now current device\n");
128         nand_curr_device = dev;
129
130 #ifdef CONFIG_SYS_NAND_SELECT_DEVICE
131         board_nand_select_device(nand_info[dev]->priv, dev);
132 #endif
133
134         return 0;
135 }
136
137 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
138 static void print_status(ulong start, ulong end, ulong erasesize, int status)
139 {
140         /*
141          * Micron NAND flash (e.g. MT29F4G08ABADAH4) BLOCK LOCK READ STATUS is
142          * not the same as others.  Instead of bit 1 being lock, it is
143          * #lock_tight. To make the driver support either format, ignore bit 1
144          * and use only bit 0 and bit 2.
145          */
146         printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
147                 start,
148                 end - 1,
149                 (end - start) / erasesize,
150                 ((status & NAND_LOCK_STATUS_TIGHT) ?  "TIGHT " : ""),
151                 (!(status & NAND_LOCK_STATUS_UNLOCK) ?  "LOCK " : ""),
152                 ((status & NAND_LOCK_STATUS_UNLOCK) ?  "UNLOCK " : ""));
153 }
154
155 static void do_nand_status(struct mtd_info *mtd)
156 {
157         ulong block_start = 0;
158         ulong off;
159         int last_status = -1;
160
161         struct nand_chip *nand_chip = mtd_to_nand(mtd);
162         /* check the WP bit */
163         nand_chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
164         printf("device is %swrite protected\n",
165                 (nand_chip->read_byte(mtd) & 0x80 ?
166                  "NOT " : ""));
167
168         for (off = 0; off < mtd->size; off += mtd->erasesize) {
169                 int s = nand_get_lock_status(mtd, off);
170
171                 /* print message only if status has changed */
172                 if (s != last_status && off != 0) {
173                         print_status(block_start, off, mtd->erasesize,
174                                         last_status);
175                         block_start = off;
176                 }
177                 last_status = s;
178         }
179         /* Print the last block info */
180         print_status(block_start, off, mtd->erasesize, last_status);
181 }
182 #endif
183
184 #ifdef CONFIG_ENV_OFFSET_OOB
185 unsigned long nand_env_oob_offset;
186
187 int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[])
188 {
189         int ret;
190         uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)];
191         struct mtd_info *mtd = nand_info[0];
192         char *cmd = argv[1];
193
194         if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !mtd) {
195                 puts("no devices available\n");
196                 return 1;
197         }
198
199         set_dev(0);
200
201         if (!strcmp(cmd, "get")) {
202                 ret = get_nand_env_oob(mtd, &nand_env_oob_offset);
203                 if (ret)
204                         return 1;
205
206                 printf("0x%08lx\n", nand_env_oob_offset);
207         } else if (!strcmp(cmd, "set")) {
208                 loff_t addr;
209                 loff_t maxsize;
210                 struct mtd_oob_ops ops;
211                 int idx = 0;
212
213                 if (argc < 3)
214                         goto usage;
215
216                 /* We don't care about size, or maxsize. */
217                 if (mtd_arg_off(argv[2], &idx, &addr, &maxsize, &maxsize,
218                                 MTD_DEV_TYPE_NAND, nand_info[idx]->size)) {
219                         puts("Offset or partition name expected\n");
220                         return 1;
221                 }
222                 if (set_dev(idx)) {
223                         puts("Offset or partition name expected\n");
224                         return 1;
225                 }
226
227                 if (idx != 0) {
228                         puts("Partition not on first NAND device\n");
229                         return 1;
230                 }
231
232                 if (mtd->oobavail < ENV_OFFSET_SIZE) {
233                         printf("Insufficient available OOB bytes:\n"
234                                "%d OOB bytes available but %d required for "
235                                "env.oob support\n",
236                                mtd->oobavail, ENV_OFFSET_SIZE);
237                         return 1;
238                 }
239
240                 if ((addr & (mtd->erasesize - 1)) != 0) {
241                         printf("Environment offset must be block-aligned\n");
242                         return 1;
243                 }
244
245                 ops.datbuf = NULL;
246                 ops.mode = MTD_OOB_AUTO;
247                 ops.ooboffs = 0;
248                 ops.ooblen = ENV_OFFSET_SIZE;
249                 ops.oobbuf = (void *) oob_buf;
250
251                 oob_buf[0] = ENV_OOB_MARKER;
252                 oob_buf[1] = addr / mtd->erasesize;
253
254                 ret = mtd->write_oob(mtd, ENV_OFFSET_SIZE, &ops);
255                 if (ret) {
256                         printf("Error writing OOB block 0\n");
257                         return ret;
258                 }
259
260                 ret = get_nand_env_oob(mtd, &nand_env_oob_offset);
261                 if (ret) {
262                         printf("Error reading env offset in OOB\n");
263                         return ret;
264                 }
265
266                 if (addr != nand_env_oob_offset) {
267                         printf("Verification of env offset in OOB failed: "
268                                "0x%08llx expected but got 0x%08lx\n",
269                                (unsigned long long)addr, nand_env_oob_offset);
270                         return 1;
271                 }
272         } else {
273                 goto usage;
274         }
275
276         return ret;
277
278 usage:
279         return CMD_RET_USAGE;
280 }
281
282 #endif
283
284 static void nand_print_and_set_info(int idx)
285 {
286         struct mtd_info *mtd = nand_info[idx];
287         struct nand_chip *chip = mtd_to_nand(mtd);
288
289         printf("Device %d: ", idx);
290         if (chip->numchips > 1)
291                 printf("%dx ", chip->numchips);
292         printf("%s, sector size %u KiB\n",
293                mtd->name, mtd->erasesize >> 10);
294         printf("  Page size   %8d b\n", mtd->writesize);
295         printf("  OOB size    %8d b\n", mtd->oobsize);
296         printf("  Erase size  %8d b\n", mtd->erasesize);
297         printf("  subpagesize %8d b\n", chip->subpagesize);
298         printf("  options     0x%8x\n", chip->options);
299         printf("  bbt options 0x%8x\n", chip->bbt_options);
300
301         /* Set geometry info */
302         setenv_hex("nand_writesize", mtd->writesize);
303         setenv_hex("nand_oobsize", mtd->oobsize);
304         setenv_hex("nand_erasesize", mtd->erasesize);
305 }
306
307 static int raw_access(struct mtd_info *mtd, ulong addr, loff_t off,
308                       ulong count, int read, int no_verify)
309 {
310         int ret = 0;
311
312         while (count--) {
313                 /* Raw access */
314                 mtd_oob_ops_t ops = {
315                         .datbuf = (u8 *)addr,
316                         .oobbuf = ((u8 *)addr) + mtd->writesize,
317                         .len = mtd->writesize,
318                         .ooblen = mtd->oobsize,
319                         .mode = MTD_OPS_RAW
320                 };
321
322                 if (read) {
323                         ret = mtd_read_oob(mtd, off, &ops);
324                 } else {
325                         ret = mtd_write_oob(mtd, off, &ops);
326                         if (!ret && !no_verify)
327                                 ret = nand_verify_page_oob(mtd, &ops, off);
328                 }
329
330                 if (ret) {
331                         printf("%s: error at offset %llx, ret %d\n",
332                                 __func__, (long long)off, ret);
333                         break;
334                 }
335
336                 addr += mtd->writesize + mtd->oobsize;
337                 off += mtd->writesize;
338         }
339
340         return ret;
341 }
342
343 /* Adjust a chip/partition size down for bad blocks so we don't
344  * read/write past the end of a chip/partition by accident.
345  */
346 static void adjust_size_for_badblocks(loff_t *size, loff_t offset, int dev)
347 {
348         /* We grab the nand info object here fresh because this is usually
349          * called after arg_off_size() which can change the value of dev.
350          */
351         struct mtd_info *mtd = nand_info[dev];
352         loff_t maxoffset = offset + *size;
353         int badblocks = 0;
354
355         /* count badblocks in NAND from offset to offset + size */
356         for (; offset < maxoffset; offset += mtd->erasesize) {
357                 if (nand_block_isbad(mtd, offset))
358                         badblocks++;
359         }
360         /* adjust size if any bad blocks found */
361         if (badblocks) {
362                 *size -= badblocks * mtd->erasesize;
363                 printf("size adjusted to 0x%llx (%d bad blocks)\n",
364                        (unsigned long long)*size, badblocks);
365         }
366 }
367
368 static int do_nand(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
369 {
370         int i, ret = 0;
371         ulong addr;
372         loff_t off, size, maxsize;
373         char *cmd, *s;
374         struct mtd_info *mtd;
375 #ifdef CONFIG_SYS_NAND_QUIET
376         int quiet = CONFIG_SYS_NAND_QUIET;
377 #else
378         int quiet = 0;
379 #endif
380         const char *quiet_str = getenv("quiet");
381         int dev = nand_curr_device;
382         int repeat = flag & CMD_FLAG_REPEAT;
383
384         /* at least two arguments please */
385         if (argc < 2)
386                 goto usage;
387
388         if (quiet_str)
389                 quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
390
391         cmd = argv[1];
392
393         /* Only "dump" is repeatable. */
394         if (repeat && strcmp(cmd, "dump"))
395                 return 0;
396
397         if (strcmp(cmd, "info") == 0) {
398
399                 putc('\n');
400                 for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) {
401                         if (nand_info[i])
402                                 nand_print_and_set_info(i);
403                 }
404                 return 0;
405         }
406
407         if (strcmp(cmd, "device") == 0) {
408                 if (argc < 3) {
409                         putc('\n');
410                         if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE)
411                                 puts("no devices available\n");
412                         else
413                                 nand_print_and_set_info(dev);
414                         return 0;
415                 }
416
417                 dev = (int)simple_strtoul(argv[2], NULL, 10);
418                 set_dev(dev);
419
420                 return 0;
421         }
422
423 #ifdef CONFIG_ENV_OFFSET_OOB
424         /* this command operates only on the first nand device */
425         if (strcmp(cmd, "env.oob") == 0)
426                 return do_nand_env_oob(cmdtp, argc - 1, argv + 1);
427 #endif
428
429         /* The following commands operate on the current device, unless
430          * overridden by a partition specifier.  Note that if somehow the
431          * current device is invalid, it will have to be changed to a valid
432          * one before these commands can run, even if a partition specifier
433          * for another device is to be used.
434          */
435         if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE ||
436             !nand_info[dev]) {
437                 puts("\nno devices available\n");
438                 return 1;
439         }
440         mtd = nand_info[dev];
441
442         if (strcmp(cmd, "bad") == 0) {
443                 printf("\nDevice %d bad blocks:\n", dev);
444                 for (off = 0; off < mtd->size; off += mtd->erasesize)
445                         if (nand_block_isbad(mtd, off))
446                                 printf("  %08llx\n", (unsigned long long)off);
447                 return 0;
448         }
449
450         /*
451          * Syntax is:
452          *   0    1     2       3    4
453          *   nand erase [clean] [off size]
454          */
455         if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) {
456                 nand_erase_options_t opts;
457                 /* "clean" at index 2 means request to write cleanmarker */
458                 int clean = argc > 2 && !strcmp("clean", argv[2]);
459                 int scrub_yes = argc > 2 && !strcmp("-y", argv[2]);
460                 int o = (clean || scrub_yes) ? 3 : 2;
461                 int scrub = !strncmp(cmd, "scrub", 5);
462                 int spread = 0;
463                 int args = 2;
464                 const char *scrub_warn =
465                         "Warning: "
466                         "scrub option will erase all factory set bad blocks!\n"
467                         "         "
468                         "There is no reliable way to recover them.\n"
469                         "         "
470                         "Use this command only for testing purposes if you\n"
471                         "         "
472                         "are sure of what you are doing!\n"
473                         "\nReally scrub this NAND flash? <y/N>\n";
474
475                 if (cmd[5] != 0) {
476                         if (!strcmp(&cmd[5], ".spread")) {
477                                 spread = 1;
478                         } else if (!strcmp(&cmd[5], ".part")) {
479                                 args = 1;
480                         } else if (!strcmp(&cmd[5], ".chip")) {
481                                 args = 0;
482                         } else {
483                                 goto usage;
484                         }
485                 }
486
487                 /*
488                  * Don't allow missing arguments to cause full chip/partition
489                  * erases -- easy to do accidentally, e.g. with a misspelled
490                  * variable name.
491                  */
492                 if (argc != o + args)
493                         goto usage;
494
495                 printf("\nNAND %s: ", cmd);
496                 /* skip first two or three arguments, look for offset and size */
497                 if (mtd_arg_off_size(argc - o, argv + o, &dev, &off, &size,
498                                      &maxsize, MTD_DEV_TYPE_NAND,
499                                      nand_info[dev]->size) != 0)
500                         return 1;
501
502                 if (set_dev(dev))
503                         return 1;
504
505                 mtd = nand_info[dev];
506
507                 memset(&opts, 0, sizeof(opts));
508                 opts.offset = off;
509                 opts.length = size;
510                 opts.jffs2  = clean;
511                 opts.quiet  = quiet;
512                 opts.spread = spread;
513
514                 if (scrub) {
515                         if (scrub_yes) {
516                                 opts.scrub = 1;
517                         } else {
518                                 puts(scrub_warn);
519                                 if (confirm_yesno()) {
520                                         opts.scrub = 1;
521                                 } else {
522                                         puts("scrub aborted\n");
523                                         return 1;
524                                 }
525                         }
526                 }
527                 ret = nand_erase_opts(mtd, &opts);
528                 printf("%s\n", ret ? "ERROR" : "OK");
529
530                 return ret == 0 ? 0 : 1;
531         }
532
533         if (strncmp(cmd, "dump", 4) == 0) {
534                 if (argc < 3)
535                         goto usage;
536
537                 off = (int)simple_strtoul(argv[2], NULL, 16);
538                 ret = nand_dump(mtd, off, !strcmp(&cmd[4], ".oob"), repeat);
539
540                 return ret == 0 ? 1 : 0;
541         }
542
543         if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
544                 size_t rwsize;
545                 ulong pagecount = 1;
546                 int read;
547                 int raw = 0;
548                 int no_verify = 0;
549
550                 if (argc < 4)
551                         goto usage;
552
553                 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
554
555                 read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
556                 printf("\nNAND %s: ", read ? "read" : "write");
557
558                 s = strchr(cmd, '.');
559
560                 if (s && !strncmp(s, ".raw", 4)) {
561                         raw = 1;
562
563                         if (!strcmp(s, ".raw.noverify"))
564                                 no_verify = 1;
565
566                         if (mtd_arg_off(argv[3], &dev, &off, &size, &maxsize,
567                                         MTD_DEV_TYPE_NAND,
568                                         nand_info[dev]->size))
569                                 return 1;
570
571                         if (set_dev(dev))
572                                 return 1;
573
574                         mtd = nand_info[dev];
575
576                         if (argc > 4 && !str2long(argv[4], &pagecount)) {
577                                 printf("'%s' is not a number\n", argv[4]);
578                                 return 1;
579                         }
580
581                         if (pagecount * mtd->writesize > size) {
582                                 puts("Size exceeds partition or device limit\n");
583                                 return -1;
584                         }
585
586                         rwsize = pagecount * (mtd->writesize + mtd->oobsize);
587                 } else {
588                         if (mtd_arg_off_size(argc - 3, argv + 3, &dev, &off,
589                                              &size, &maxsize,
590                                              MTD_DEV_TYPE_NAND,
591                                              nand_info[dev]->size) != 0)
592                                 return 1;
593
594                         if (set_dev(dev))
595                                 return 1;
596
597                         /* size is unspecified */
598                         if (argc < 5)
599                                 adjust_size_for_badblocks(&size, off, dev);
600                         rwsize = size;
601                 }
602
603                 mtd = nand_info[dev];
604
605                 if (!s || !strcmp(s, ".jffs2") ||
606                     !strcmp(s, ".e") || !strcmp(s, ".i")) {
607                         if (read)
608                                 ret = nand_read_skip_bad(mtd, off, &rwsize,
609                                                          NULL, maxsize,
610                                                          (u_char *)addr);
611                         else
612                                 ret = nand_write_skip_bad(mtd, off, &rwsize,
613                                                           NULL, maxsize,
614                                                           (u_char *)addr,
615                                                           WITH_WR_VERIFY);
616 #ifdef CONFIG_CMD_NAND_TRIMFFS
617                 } else if (!strcmp(s, ".trimffs")) {
618                         if (read) {
619                                 printf("Unknown nand command suffix '%s'\n", s);
620                                 return 1;
621                         }
622                         ret = nand_write_skip_bad(mtd, off, &rwsize, NULL,
623                                                 maxsize, (u_char *)addr,
624                                                 WITH_DROP_FFS | WITH_WR_VERIFY);
625 #endif
626                 } else if (!strcmp(s, ".oob")) {
627                         /* out-of-band data */
628                         mtd_oob_ops_t ops = {
629                                 .oobbuf = (u8 *)addr,
630                                 .ooblen = rwsize,
631                                 .mode = MTD_OPS_RAW
632                         };
633
634                         if (read)
635                                 ret = mtd_read_oob(mtd, off, &ops);
636                         else
637                                 ret = mtd_write_oob(mtd, off, &ops);
638                 } else if (raw) {
639                         ret = raw_access(mtd, addr, off, pagecount, read,
640                                          no_verify);
641                 } else {
642                         printf("Unknown nand command suffix '%s'.\n", s);
643                         return 1;
644                 }
645
646                 printf(" %zu bytes %s: %s\n", rwsize,
647                        read ? "read" : "written", ret ? "ERROR" : "OK");
648
649                 return ret == 0 ? 0 : 1;
650         }
651
652 #ifdef CONFIG_CMD_NAND_TORTURE
653         if (strcmp(cmd, "torture") == 0) {
654                 loff_t endoff;
655                 unsigned int failed = 0, passed = 0;
656
657                 if (argc < 3)
658                         goto usage;
659
660                 if (!str2off(argv[2], &off)) {
661                         puts("Offset is not a valid number\n");
662                         return 1;
663                 }
664
665                 size = mtd->erasesize;
666                 if (argc > 3) {
667                         if (!str2off(argv[3], &size)) {
668                                 puts("Size is not a valid number\n");
669                                 return 1;
670                         }
671                 }
672
673                 endoff = off + size;
674                 if (endoff > mtd->size) {
675                         puts("Arguments beyond end of NAND\n");
676                         return 1;
677                 }
678
679                 off = round_down(off, mtd->erasesize);
680                 endoff = round_up(endoff, mtd->erasesize);
681                 size = endoff - off;
682                 printf("\nNAND torture: device %d offset 0x%llx size 0x%llx (block size 0x%x)\n",
683                        dev, off, size, mtd->erasesize);
684                 while (off < endoff) {
685                         ret = nand_torture(mtd, off);
686                         if (ret) {
687                                 failed++;
688                                 printf("  block at 0x%llx failed\n", off);
689                         } else {
690                                 passed++;
691                         }
692                         off += mtd->erasesize;
693                 }
694                 printf(" Passed: %u, failed: %u\n", passed, failed);
695                 return failed != 0;
696         }
697 #endif
698
699         if (strcmp(cmd, "markbad") == 0) {
700                 argc -= 2;
701                 argv += 2;
702
703                 if (argc <= 0)
704                         goto usage;
705
706                 while (argc > 0) {
707                         addr = simple_strtoul(*argv, NULL, 16);
708
709                         if (mtd_block_markbad(mtd, addr)) {
710                                 printf("block 0x%08lx NOT marked "
711                                         "as bad! ERROR %d\n",
712                                         addr, ret);
713                                 ret = 1;
714                         } else {
715                                 printf("block 0x%08lx successfully "
716                                         "marked as bad\n",
717                                         addr);
718                         }
719                         --argc;
720                         ++argv;
721                 }
722                 return ret;
723         }
724
725         if (strcmp(cmd, "biterr") == 0) {
726                 /* todo */
727                 return 1;
728         }
729
730 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
731         if (strcmp(cmd, "lock") == 0) {
732                 int tight = 0;
733                 int status = 0;
734                 if (argc == 3) {
735                         if (!strcmp("tight", argv[2]))
736                                 tight = 1;
737                         if (!strcmp("status", argv[2]))
738                                 status = 1;
739                 }
740                 if (status) {
741                         do_nand_status(mtd);
742                 } else {
743                         if (!nand_lock(mtd, tight)) {
744                                 puts("NAND flash successfully locked\n");
745                         } else {
746                                 puts("Error locking NAND flash\n");
747                                 return 1;
748                         }
749                 }
750                 return 0;
751         }
752
753         if (strncmp(cmd, "unlock", 5) == 0) {
754                 int allexcept = 0;
755
756                 s = strchr(cmd, '.');
757
758                 if (s && !strcmp(s, ".allexcept"))
759                         allexcept = 1;
760
761                 if (mtd_arg_off_size(argc - 2, argv + 2, &dev, &off, &size,
762                                      &maxsize, MTD_DEV_TYPE_NAND,
763                                      nand_info[dev]->size) < 0)
764                         return 1;
765
766                 if (set_dev(dev))
767                         return 1;
768
769                 if (!nand_unlock(nand_info[dev], off, size, allexcept)) {
770                         puts("NAND flash successfully unlocked\n");
771                 } else {
772                         puts("Error unlocking NAND flash, "
773                              "write and erase will probably fail\n");
774                         return 1;
775                 }
776                 return 0;
777         }
778 #endif
779
780 usage:
781         return CMD_RET_USAGE;
782 }
783
784 #ifdef CONFIG_SYS_LONGHELP
785 static char nand_help_text[] =
786         "info - show available NAND devices\n"
787         "nand device [dev] - show or set current device\n"
788         "nand read - addr off|partition size\n"
789         "nand write - addr off|partition size\n"
790         "    read/write 'size' bytes starting at offset 'off'\n"
791         "    to/from memory address 'addr', skipping bad blocks.\n"
792         "nand read.raw - addr off|partition [count]\n"
793         "nand write.raw[.noverify] - addr off|partition [count]\n"
794         "    Use read.raw/write.raw to avoid ECC and access the flash as-is.\n"
795 #ifdef CONFIG_CMD_NAND_TRIMFFS
796         "nand write.trimffs - addr off|partition size\n"
797         "    write 'size' bytes starting at offset 'off' from memory address\n"
798         "    'addr', skipping bad blocks and dropping any pages at the end\n"
799         "    of eraseblocks that contain only 0xFF\n"
800 #endif
801         "nand erase[.spread] [clean] off size - erase 'size' bytes "
802         "from offset 'off'\n"
803         "    With '.spread', erase enough for given file size, otherwise,\n"
804         "    'size' includes skipped bad blocks.\n"
805         "nand erase.part [clean] partition - erase entire mtd partition'\n"
806         "nand erase.chip [clean] - erase entire chip'\n"
807         "nand bad - show bad blocks\n"
808         "nand dump[.oob] off - dump page\n"
809 #ifdef CONFIG_CMD_NAND_TORTURE
810         "nand torture off - torture one block at offset\n"
811         "nand torture off [size] - torture blocks from off to off+size\n"
812 #endif
813         "nand scrub [-y] off size | scrub.part partition | scrub.chip\n"
814         "    really clean NAND erasing bad blocks (UNSAFE)\n"
815         "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
816         "nand biterr off - make a bit error at offset (UNSAFE)"
817 #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
818         "\n"
819         "nand lock [tight] [status]\n"
820         "    bring nand to lock state or display locked pages\n"
821         "nand unlock[.allexcept] [offset] [size] - unlock section"
822 #endif
823 #ifdef CONFIG_ENV_OFFSET_OOB
824         "\n"
825         "nand env.oob - environment offset in OOB of block 0 of"
826         "    first device.\n"
827         "nand env.oob set off|partition - set enviromnent offset\n"
828         "nand env.oob get - get environment offset"
829 #endif
830         "";
831 #endif
832
833 U_BOOT_CMD(
834         nand, CONFIG_SYS_MAXARGS, 1, do_nand,
835         "NAND sub-system", nand_help_text
836 );
837
838 static int nand_load_image(cmd_tbl_t *cmdtp, struct mtd_info *mtd,
839                            ulong offset, ulong addr, char *cmd)
840 {
841         int r;
842         char *s;
843         size_t cnt;
844 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
845         image_header_t *hdr;
846 #endif
847 #if defined(CONFIG_FIT)
848         const void *fit_hdr = NULL;
849 #endif
850
851         s = strchr(cmd, '.');
852         if (s != NULL &&
853             (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
854                 printf("Unknown nand load suffix '%s'\n", s);
855                 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
856                 return 1;
857         }
858
859         printf("\nLoading from %s, offset 0x%lx\n", mtd->name, offset);
860
861         cnt = mtd->writesize;
862         r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size,
863                                (u_char *)addr);
864         if (r) {
865                 puts("** Read error\n");
866                 bootstage_error(BOOTSTAGE_ID_NAND_HDR_READ);
867                 return 1;
868         }
869         bootstage_mark(BOOTSTAGE_ID_NAND_HDR_READ);
870
871         switch (genimg_get_format ((void *)addr)) {
872 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
873         case IMAGE_FORMAT_LEGACY:
874                 hdr = (image_header_t *)addr;
875
876                 bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
877                 image_print_contents (hdr);
878
879                 cnt = image_get_image_size (hdr);
880                 break;
881 #endif
882 #if defined(CONFIG_FIT)
883         case IMAGE_FORMAT_FIT:
884                 fit_hdr = (const void *)addr;
885                 puts ("Fit image detected...\n");
886
887                 cnt = fit_get_size (fit_hdr);
888                 break;
889 #endif
890         default:
891                 bootstage_error(BOOTSTAGE_ID_NAND_TYPE);
892                 puts ("** Unknown image type\n");
893                 return 1;
894         }
895         bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
896
897         r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size,
898                                (u_char *)addr);
899         if (r) {
900                 puts("** Read error\n");
901                 bootstage_error(BOOTSTAGE_ID_NAND_READ);
902                 return 1;
903         }
904         bootstage_mark(BOOTSTAGE_ID_NAND_READ);
905
906 #if defined(CONFIG_FIT)
907         /* This cannot be done earlier, we need complete FIT image in RAM first */
908         if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
909                 if (!fit_check_format (fit_hdr)) {
910                         bootstage_error(BOOTSTAGE_ID_NAND_FIT_READ);
911                         puts ("** Bad FIT image format\n");
912                         return 1;
913                 }
914                 bootstage_mark(BOOTSTAGE_ID_NAND_FIT_READ_OK);
915                 fit_print_contents (fit_hdr);
916         }
917 #endif
918
919         /* Loading ok, update default load address */
920
921         load_addr = addr;
922
923         return bootm_maybe_autostart(cmdtp, cmd);
924 }
925
926 static int do_nandboot(cmd_tbl_t *cmdtp, int flag, int argc,
927                        char * const argv[])
928 {
929         char *boot_device = NULL;
930         int idx;
931         ulong addr, offset = 0;
932 #if defined(CONFIG_CMD_MTDPARTS)
933         struct mtd_device *dev;
934         struct part_info *part;
935         u8 pnum;
936
937         if (argc >= 2) {
938                 char *p = (argc == 2) ? argv[1] : argv[2];
939                 if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
940                     (find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
941                         if (dev->id->type != MTD_DEV_TYPE_NAND) {
942                                 puts("Not a NAND device\n");
943                                 return 1;
944                         }
945                         if (argc > 3)
946                                 goto usage;
947                         if (argc == 3)
948                                 addr = simple_strtoul(argv[1], NULL, 16);
949                         else
950                                 addr = CONFIG_SYS_LOAD_ADDR;
951                         return nand_load_image(cmdtp, nand_info[dev->id->num],
952                                                part->offset, addr, argv[0]);
953                 }
954         }
955 #endif
956
957         bootstage_mark(BOOTSTAGE_ID_NAND_PART);
958         switch (argc) {
959         case 1:
960                 addr = CONFIG_SYS_LOAD_ADDR;
961                 boot_device = getenv("bootdevice");
962                 break;
963         case 2:
964                 addr = simple_strtoul(argv[1], NULL, 16);
965                 boot_device = getenv("bootdevice");
966                 break;
967         case 3:
968                 addr = simple_strtoul(argv[1], NULL, 16);
969                 boot_device = argv[2];
970                 break;
971         case 4:
972                 addr = simple_strtoul(argv[1], NULL, 16);
973                 boot_device = argv[2];
974                 offset = simple_strtoul(argv[3], NULL, 16);
975                 break;
976         default:
977 #if defined(CONFIG_CMD_MTDPARTS)
978 usage:
979 #endif
980                 bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
981                 return CMD_RET_USAGE;
982         }
983         bootstage_mark(BOOTSTAGE_ID_NAND_SUFFIX);
984
985         if (!boot_device) {
986                 puts("\n** No boot device **\n");
987                 bootstage_error(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
988                 return 1;
989         }
990         bootstage_mark(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
991
992         idx = simple_strtoul(boot_device, NULL, 16);
993
994         if (idx < 0 || idx >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[idx]) {
995                 printf("\n** Device %d not available\n", idx);
996                 bootstage_error(BOOTSTAGE_ID_NAND_AVAILABLE);
997                 return 1;
998         }
999         bootstage_mark(BOOTSTAGE_ID_NAND_AVAILABLE);
1000
1001         return nand_load_image(cmdtp, nand_info[idx], offset, addr, argv[0]);
1002 }
1003
1004 U_BOOT_CMD(nboot, 4, 1, do_nandboot,
1005         "boot from NAND device",
1006         "[partition] | [[[loadAddr] dev] offset]"
1007 );