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Commit | Line | Data |
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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_MTDPARTS) | |
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_MTDPARTS) | |
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_MTDPARTS) | |
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 | static void nand_print_info(int idx) | |
209 | { | |
210 | nand_info_t *nand = &nand_info[idx]; | |
211 | struct nand_chip *chip = nand->priv; | |
212 | printf("Device %d: ", idx); | |
213 | if (chip->numchips > 1) | |
214 | printf("%dx ", chip->numchips); | |
215 | printf("%s, sector size %u KiB\n", | |
216 | nand->name, nand->erasesize >> 10); | |
217 | } | |
218 | ||
219 | int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) | |
220 | { | |
221 | int i, dev, ret = 0; | |
222 | ulong addr, off; | |
223 | size_t size; | |
224 | char *cmd, *s; | |
225 | nand_info_t *nand; | |
226 | #ifdef CONFIG_SYS_NAND_QUIET | |
227 | int quiet = CONFIG_SYS_NAND_QUIET; | |
228 | #else | |
229 | int quiet = 0; | |
230 | #endif | |
231 | const char *quiet_str = getenv("quiet"); | |
232 | ||
233 | /* at least two arguments please */ | |
234 | if (argc < 2) | |
235 | goto usage; | |
236 | ||
237 | if (quiet_str) | |
238 | quiet = simple_strtoul(quiet_str, NULL, 0) != 0; | |
239 | ||
240 | cmd = argv[1]; | |
241 | ||
242 | if (strcmp(cmd, "info") == 0) { | |
243 | ||
244 | putc('\n'); | |
245 | for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++) { | |
246 | if (nand_info[i].name) | |
247 | nand_print_info(i); | |
248 | } | |
249 | return 0; | |
250 | } | |
251 | ||
252 | if (strcmp(cmd, "device") == 0) { | |
253 | ||
254 | if (argc < 3) { | |
255 | putc('\n'); | |
256 | if ((nand_curr_device < 0) || | |
257 | (nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) | |
258 | puts("no devices available\n"); | |
259 | else | |
260 | nand_print_info(nand_curr_device); | |
261 | return 0; | |
262 | } | |
263 | dev = (int)simple_strtoul(argv[2], NULL, 10); | |
264 | if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[dev].name) { | |
265 | puts("No such device\n"); | |
266 | return 1; | |
267 | } | |
268 | printf("Device %d: %s", dev, nand_info[dev].name); | |
269 | puts("... is now current device\n"); | |
270 | nand_curr_device = dev; | |
271 | ||
272 | #ifdef CONFIG_SYS_NAND_SELECT_DEVICE | |
273 | /* | |
274 | * Select the chip in the board/cpu specific driver | |
275 | */ | |
276 | board_nand_select_device(nand_info[dev].priv, dev); | |
277 | #endif | |
278 | ||
279 | return 0; | |
280 | } | |
281 | ||
282 | if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 && | |
283 | strncmp(cmd, "dump", 4) != 0 && | |
284 | strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 && | |
285 | strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 && | |
286 | strcmp(cmd, "biterr") != 0 && | |
287 | strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 ) | |
288 | goto usage; | |
289 | ||
290 | /* the following commands operate on the current device */ | |
291 | if (nand_curr_device < 0 || nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE || | |
292 | !nand_info[nand_curr_device].name) { | |
293 | puts("\nno devices available\n"); | |
294 | return 1; | |
295 | } | |
296 | nand = &nand_info[nand_curr_device]; | |
297 | ||
298 | if (strcmp(cmd, "bad") == 0) { | |
299 | printf("\nDevice %d bad blocks:\n", nand_curr_device); | |
300 | for (off = 0; off < nand->size; off += nand->erasesize) | |
301 | if (nand_block_isbad(nand, off)) | |
302 | printf(" %08lx\n", off); | |
303 | return 0; | |
304 | } | |
305 | ||
306 | /* | |
307 | * Syntax is: | |
308 | * 0 1 2 3 4 | |
309 | * nand erase [clean] [off size] | |
310 | */ | |
311 | if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) { | |
312 | nand_erase_options_t opts; | |
313 | /* "clean" at index 2 means request to write cleanmarker */ | |
314 | int clean = argc > 2 && !strcmp("clean", argv[2]); | |
315 | int o = clean ? 3 : 2; | |
316 | int scrub = !strcmp(cmd, "scrub"); | |
317 | ||
318 | printf("\nNAND %s: ", scrub ? "scrub" : "erase"); | |
319 | /* skip first two or three arguments, look for offset and size */ | |
320 | if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0) | |
321 | return 1; | |
322 | ||
323 | memset(&opts, 0, sizeof(opts)); | |
324 | opts.offset = off; | |
325 | opts.length = size; | |
326 | opts.jffs2 = clean; | |
327 | opts.quiet = quiet; | |
328 | ||
329 | if (scrub) { | |
330 | puts("Warning: " | |
331 | "scrub option will erase all factory set " | |
332 | "bad blocks!\n" | |
333 | " " | |
334 | "There is no reliable way to recover them.\n" | |
335 | " " | |
336 | "Use this command only for testing purposes " | |
337 | "if you\n" | |
338 | " " | |
339 | "are sure of what you are doing!\n" | |
340 | "\nReally scrub this NAND flash? <y/N>\n"); | |
341 | ||
342 | if (getc() == 'y' && getc() == '\r') { | |
343 | opts.scrub = 1; | |
344 | } else { | |
345 | puts("scrub aborted\n"); | |
346 | return -1; | |
347 | } | |
348 | } | |
349 | ret = nand_erase_opts(nand, &opts); | |
350 | printf("%s\n", ret ? "ERROR" : "OK"); | |
351 | ||
352 | return ret == 0 ? 0 : 1; | |
353 | } | |
354 | ||
355 | if (strncmp(cmd, "dump", 4) == 0) { | |
356 | if (argc < 3) | |
357 | goto usage; | |
358 | ||
359 | s = strchr(cmd, '.'); | |
360 | off = (int)simple_strtoul(argv[2], NULL, 16); | |
361 | ||
362 | if (s != NULL && strcmp(s, ".oob") == 0) | |
363 | ret = nand_dump(nand, off, 1); | |
364 | else | |
365 | ret = nand_dump(nand, off, 0); | |
366 | ||
367 | return ret == 0 ? 1 : 0; | |
368 | ||
369 | } | |
370 | ||
371 | if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { | |
372 | int read; | |
373 | ||
374 | if (argc < 4) | |
375 | goto usage; | |
376 | ||
377 | addr = (ulong)simple_strtoul(argv[2], NULL, 16); | |
378 | ||
379 | read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */ | |
380 | printf("\nNAND %s: ", read ? "read" : "write"); | |
381 | if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0) | |
382 | return 1; | |
383 | ||
384 | s = strchr(cmd, '.'); | |
385 | if (!s || !strcmp(s, ".jffs2") || | |
386 | !strcmp(s, ".e") || !strcmp(s, ".i")) { | |
387 | if (read) | |
388 | ret = nand_read_skip_bad(nand, off, &size, | |
389 | (u_char *)addr); | |
390 | else | |
391 | ret = nand_write_skip_bad(nand, off, &size, | |
392 | (u_char *)addr); | |
393 | } else if (!strcmp(s, ".oob")) { | |
394 | /* out-of-band data */ | |
395 | mtd_oob_ops_t ops = { | |
396 | .oobbuf = (u8 *)addr, | |
397 | .ooblen = size, | |
398 | .mode = MTD_OOB_RAW | |
399 | }; | |
400 | ||
401 | if (read) | |
402 | ret = nand->read_oob(nand, off, &ops); | |
403 | else | |
404 | ret = nand->write_oob(nand, off, &ops); | |
405 | } else { | |
406 | printf("Unknown nand command suffix '%s'.\n", s); | |
407 | return 1; | |
408 | } | |
409 | ||
410 | printf(" %zu bytes %s: %s\n", size, | |
411 | read ? "read" : "written", ret ? "ERROR" : "OK"); | |
412 | ||
413 | return ret == 0 ? 0 : 1; | |
414 | } | |
415 | ||
416 | if (strcmp(cmd, "markbad") == 0) { | |
417 | addr = (ulong)simple_strtoul(argv[2], NULL, 16); | |
418 | ||
419 | int ret = nand->block_markbad(nand, addr); | |
420 | if (ret == 0) { | |
421 | printf("block 0x%08lx successfully marked as bad\n", | |
422 | (ulong) addr); | |
423 | return 0; | |
424 | } else { | |
425 | printf("block 0x%08lx NOT marked as bad! ERROR %d\n", | |
426 | (ulong) addr, ret); | |
427 | } | |
428 | return 1; | |
429 | } | |
430 | ||
431 | if (strcmp(cmd, "biterr") == 0) { | |
432 | /* todo */ | |
433 | return 1; | |
434 | } | |
435 | ||
436 | #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK | |
437 | if (strcmp(cmd, "lock") == 0) { | |
438 | int tight = 0; | |
439 | int status = 0; | |
440 | if (argc == 3) { | |
441 | if (!strcmp("tight", argv[2])) | |
442 | tight = 1; | |
443 | if (!strcmp("status", argv[2])) | |
444 | status = 1; | |
445 | } | |
446 | if (status) { | |
447 | do_nand_status(nand); | |
448 | } else { | |
449 | if (!nand_lock(nand, tight)) { | |
450 | puts("NAND flash successfully locked\n"); | |
451 | } else { | |
452 | puts("Error locking NAND flash\n"); | |
453 | return 1; | |
454 | } | |
455 | } | |
456 | return 0; | |
457 | } | |
458 | ||
459 | if (strcmp(cmd, "unlock") == 0) { | |
460 | if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0) | |
461 | return 1; | |
462 | ||
463 | if (!nand_unlock(nand, off, size)) { | |
464 | puts("NAND flash successfully unlocked\n"); | |
465 | } else { | |
466 | puts("Error unlocking NAND flash, " | |
467 | "write and erase will probably fail\n"); | |
468 | return 1; | |
469 | } | |
470 | return 0; | |
471 | } | |
472 | #endif | |
473 | ||
474 | usage: | |
475 | cmd_usage(cmdtp); | |
476 | return 1; | |
477 | } | |
478 | ||
479 | U_BOOT_CMD(nand, 5, 1, do_nand, | |
480 | "NAND sub-system", | |
481 | "info - show available NAND devices\n" | |
482 | "nand device [dev] - show or set current device\n" | |
483 | "nand read - addr off|partition size\n" | |
484 | "nand write - addr off|partition size\n" | |
485 | " read/write 'size' bytes starting at offset 'off'\n" | |
486 | " to/from memory address 'addr', skipping bad blocks.\n" | |
487 | "nand erase [clean] [off size] - erase 'size' bytes from\n" | |
488 | " offset 'off' (entire device if not specified)\n" | |
489 | "nand bad - show bad blocks\n" | |
490 | "nand dump[.oob] off - dump page\n" | |
491 | "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n" | |
492 | "nand markbad off - mark bad block at offset (UNSAFE)\n" | |
493 | "nand biterr off - make a bit error at offset (UNSAFE)\n" | |
494 | #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK | |
495 | "nand lock [tight] [status]\n" | |
496 | " bring nand to lock state or display locked pages\n" | |
497 | "nand unlock [offset] [size] - unlock section\n" | |
498 | #endif | |
499 | ); | |
500 | ||
501 | static int nand_load_image(cmd_tbl_t *cmdtp, nand_info_t *nand, | |
502 | ulong offset, ulong addr, char *cmd) | |
503 | { | |
504 | int r; | |
505 | char *ep, *s; | |
506 | size_t cnt; | |
507 | image_header_t *hdr; | |
508 | #if defined(CONFIG_FIT) | |
509 | const void *fit_hdr = NULL; | |
510 | #endif | |
511 | ||
512 | s = strchr(cmd, '.'); | |
513 | if (s != NULL && | |
514 | (strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) { | |
515 | printf("Unknown nand load suffix '%s'\n", s); | |
516 | show_boot_progress(-53); | |
517 | return 1; | |
518 | } | |
519 | ||
520 | printf("\nLoading from %s, offset 0x%lx\n", nand->name, offset); | |
521 | ||
522 | cnt = nand->writesize; | |
523 | r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr); | |
524 | if (r) { | |
525 | puts("** Read error\n"); | |
526 | show_boot_progress (-56); | |
527 | return 1; | |
528 | } | |
529 | show_boot_progress (56); | |
530 | ||
531 | switch (genimg_get_format ((void *)addr)) { | |
532 | case IMAGE_FORMAT_LEGACY: | |
533 | hdr = (image_header_t *)addr; | |
534 | ||
535 | show_boot_progress (57); | |
536 | image_print_contents (hdr); | |
537 | ||
538 | cnt = image_get_image_size (hdr); | |
539 | break; | |
540 | #if defined(CONFIG_FIT) | |
541 | case IMAGE_FORMAT_FIT: | |
542 | fit_hdr = (const void *)addr; | |
543 | puts ("Fit image detected...\n"); | |
544 | ||
545 | cnt = fit_get_size (fit_hdr); | |
546 | break; | |
547 | #endif | |
548 | default: | |
549 | show_boot_progress (-57); | |
550 | puts ("** Unknown image type\n"); | |
551 | return 1; | |
552 | } | |
553 | show_boot_progress (57); | |
554 | ||
555 | r = nand_read_skip_bad(nand, offset, &cnt, (u_char *) addr); | |
556 | if (r) { | |
557 | puts("** Read error\n"); | |
558 | show_boot_progress (-58); | |
559 | return 1; | |
560 | } | |
561 | show_boot_progress (58); | |
562 | ||
563 | #if defined(CONFIG_FIT) | |
564 | /* This cannot be done earlier, we need complete FIT image in RAM first */ | |
565 | if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) { | |
566 | if (!fit_check_format (fit_hdr)) { | |
567 | show_boot_progress (-150); | |
568 | puts ("** Bad FIT image format\n"); | |
569 | return 1; | |
570 | } | |
571 | show_boot_progress (151); | |
572 | fit_print_contents (fit_hdr); | |
573 | } | |
574 | #endif | |
575 | ||
576 | /* Loading ok, update default load address */ | |
577 | ||
578 | load_addr = addr; | |
579 | ||
580 | /* Check if we should attempt an auto-start */ | |
581 | if (((ep = getenv("autostart")) != NULL) && (strcmp(ep, "yes") == 0)) { | |
582 | char *local_args[2]; | |
583 | extern int do_bootm(cmd_tbl_t *, int, int, char *[]); | |
584 | ||
585 | local_args[0] = cmd; | |
586 | local_args[1] = NULL; | |
587 | ||
588 | printf("Automatic boot of image at addr 0x%08lx ...\n", addr); | |
589 | ||
590 | do_bootm(cmdtp, 0, 1, local_args); | |
591 | return 1; | |
592 | } | |
593 | return 0; | |
594 | } | |
595 | ||
596 | int do_nandboot(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) | |
597 | { | |
598 | char *boot_device = NULL; | |
599 | int idx; | |
600 | ulong addr, offset = 0; | |
601 | #if defined(CONFIG_CMD_MTDPARTS) | |
602 | struct mtd_device *dev; | |
603 | struct part_info *part; | |
604 | u8 pnum; | |
605 | ||
606 | if (argc >= 2) { | |
607 | char *p = (argc == 2) ? argv[1] : argv[2]; | |
608 | if (!(str2long(p, &addr)) && (mtdparts_init() == 0) && | |
609 | (find_dev_and_part(p, &dev, &pnum, &part) == 0)) { | |
610 | if (dev->id->type != MTD_DEV_TYPE_NAND) { | |
611 | puts("Not a NAND device\n"); | |
612 | return 1; | |
613 | } | |
614 | if (argc > 3) | |
615 | goto usage; | |
616 | if (argc == 3) | |
617 | addr = simple_strtoul(argv[1], NULL, 16); | |
618 | else | |
619 | addr = CONFIG_SYS_LOAD_ADDR; | |
620 | return nand_load_image(cmdtp, &nand_info[dev->id->num], | |
621 | part->offset, addr, argv[0]); | |
622 | } | |
623 | } | |
624 | #endif | |
625 | ||
626 | show_boot_progress(52); | |
627 | switch (argc) { | |
628 | case 1: | |
629 | addr = CONFIG_SYS_LOAD_ADDR; | |
630 | boot_device = getenv("bootdevice"); | |
631 | break; | |
632 | case 2: | |
633 | addr = simple_strtoul(argv[1], NULL, 16); | |
634 | boot_device = getenv("bootdevice"); | |
635 | break; | |
636 | case 3: | |
637 | addr = simple_strtoul(argv[1], NULL, 16); | |
638 | boot_device = argv[2]; | |
639 | break; | |
640 | case 4: | |
641 | addr = simple_strtoul(argv[1], NULL, 16); | |
642 | boot_device = argv[2]; | |
643 | offset = simple_strtoul(argv[3], NULL, 16); | |
644 | break; | |
645 | default: | |
646 | #if defined(CONFIG_CMD_MTDPARTS) | |
647 | usage: | |
648 | #endif | |
649 | cmd_usage(cmdtp); | |
650 | show_boot_progress(-53); | |
651 | return 1; | |
652 | } | |
653 | ||
654 | show_boot_progress(53); | |
655 | if (!boot_device) { | |
656 | puts("\n** No boot device **\n"); | |
657 | show_boot_progress(-54); | |
658 | return 1; | |
659 | } | |
660 | show_boot_progress(54); | |
661 | ||
662 | idx = simple_strtoul(boot_device, NULL, 16); | |
663 | ||
664 | if (idx < 0 || idx >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[idx].name) { | |
665 | printf("\n** Device %d not available\n", idx); | |
666 | show_boot_progress(-55); | |
667 | return 1; | |
668 | } | |
669 | show_boot_progress(55); | |
670 | ||
671 | return nand_load_image(cmdtp, &nand_info[idx], offset, addr, argv[0]); | |
672 | } | |
673 | ||
674 | U_BOOT_CMD(nboot, 4, 1, do_nandboot, | |
675 | "boot from NAND device", | |
676 | "[partition] | [[[loadAddr] dev] offset]\n"); | |
677 | ||
678 | #endif | |
679 | ||
680 | #else /* CONFIG_NAND_LEGACY */ | |
681 | /* | |
682 | * | |
683 | * Legacy NAND support - to be phased out | |
684 | * | |
685 | */ | |
686 | #include <command.h> | |
687 | #include <malloc.h> | |
688 | #include <asm/io.h> | |
689 | #include <watchdog.h> | |
690 | ||
691 | #ifdef CONFIG_show_boot_progress | |
692 | # include <status_led.h> | |
693 | # define show_boot_progress(arg) show_boot_progress(arg) | |
694 | #else | |
695 | # define show_boot_progress(arg) | |
696 | #endif | |
697 | ||
698 | #if defined(CONFIG_CMD_NAND) | |
699 | #include <linux/mtd/nand_legacy.h> | |
700 | #if 0 | |
701 | #include <linux/mtd/nand_ids.h> | |
702 | #include <jffs2/jffs2.h> | |
703 | #endif | |
704 | ||
705 | #ifdef CONFIG_OMAP1510 | |
706 | void archflashwp(void *archdata, int wp); | |
707 | #endif | |
708 | ||
709 | #define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1))) | |
710 | ||
711 | #undef NAND_DEBUG | |
712 | #undef PSYCHO_DEBUG | |
713 | ||
714 | /* ****************** WARNING ********************* | |
715 | * When ALLOW_ERASE_BAD_DEBUG is non-zero the erase command will | |
716 | * erase (or at least attempt to erase) blocks that are marked | |
717 | * bad. This can be very handy if you are _sure_ that the block | |
718 | * is OK, say because you marked a good block bad to test bad | |
719 | * block handling and you are done testing, or if you have | |
720 | * accidentally marked blocks bad. | |
721 | * | |
722 | * Erasing factory marked bad blocks is a _bad_ idea. If the | |
723 | * erase succeeds there is no reliable way to find them again, | |
724 | * and attempting to program or erase bad blocks can affect | |
725 | * the data in _other_ (good) blocks. | |
726 | */ | |
727 | #define ALLOW_ERASE_BAD_DEBUG 0 | |
728 | ||
729 | #define CONFIG_MTD_NAND_ECC /* enable ECC */ | |
730 | #define CONFIG_MTD_NAND_ECC_JFFS2 | |
731 | ||
732 | /* bits for nand_legacy_rw() `cmd'; or together as needed */ | |
733 | #define NANDRW_READ 0x01 | |
734 | #define NANDRW_WRITE 0x00 | |
735 | #define NANDRW_JFFS2 0x02 | |
736 | #define NANDRW_JFFS2_SKIP 0x04 | |
737 | ||
738 | /* | |
739 | * Imports from nand_legacy.c | |
740 | */ | |
741 | extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE]; | |
742 | extern int curr_device; | |
743 | extern int nand_legacy_erase(struct nand_chip *nand, size_t ofs, | |
744 | size_t len, int clean); | |
745 | extern int nand_legacy_rw(struct nand_chip *nand, int cmd, size_t start, | |
746 | size_t len, size_t *retlen, u_char *buf); | |
747 | extern void nand_print(struct nand_chip *nand); | |
748 | extern void nand_print_bad(struct nand_chip *nand); | |
749 | extern int nand_read_oob(struct nand_chip *nand, size_t ofs, | |
750 | size_t len, size_t *retlen, u_char *buf); | |
751 | extern int nand_write_oob(struct nand_chip *nand, size_t ofs, | |
752 | size_t len, size_t *retlen, const u_char *buf); | |
753 | ||
754 | ||
755 | int do_nand (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) | |
756 | { | |
757 | int rcode = 0; | |
758 | ||
759 | switch (argc) { | |
760 | case 0: | |
761 | case 1: | |
762 | cmd_usage(cmdtp); | |
763 | return 1; | |
764 | case 2: | |
765 | if (strcmp (argv[1], "info") == 0) { | |
766 | int i; | |
767 | ||
768 | putc ('\n'); | |
769 | ||
770 | for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; ++i) { | |
771 | if (nand_dev_desc[i].ChipID == | |
772 | NAND_ChipID_UNKNOWN) | |
773 | continue; /* list only known devices */ | |
774 | printf ("Device %d: ", i); | |
775 | nand_print (&nand_dev_desc[i]); | |
776 | } | |
777 | return 0; | |
778 | ||
779 | } else if (strcmp (argv[1], "device") == 0) { | |
780 | if ((curr_device < 0) | |
781 | || (curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) { | |
782 | puts ("\nno devices available\n"); | |
783 | return 1; | |
784 | } | |
785 | printf ("\nDevice %d: ", curr_device); | |
786 | nand_print (&nand_dev_desc[curr_device]); | |
787 | return 0; | |
788 | ||
789 | } else if (strcmp (argv[1], "bad") == 0) { | |
790 | if ((curr_device < 0) | |
791 | || (curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) { | |
792 | puts ("\nno devices available\n"); | |
793 | return 1; | |
794 | } | |
795 | printf ("\nDevice %d bad blocks:\n", curr_device); | |
796 | nand_print_bad (&nand_dev_desc[curr_device]); | |
797 | return 0; | |
798 | ||
799 | } | |
800 | cmd_usage(cmdtp); | |
801 | return 1; | |
802 | case 3: | |
803 | if (strcmp (argv[1], "device") == 0) { | |
804 | int dev = (int) simple_strtoul (argv[2], NULL, 10); | |
805 | ||
806 | printf ("\nDevice %d: ", dev); | |
807 | if (dev >= CONFIG_SYS_MAX_NAND_DEVICE) { | |
808 | puts ("unknown device\n"); | |
809 | return 1; | |
810 | } | |
811 | nand_print (&nand_dev_desc[dev]); | |
812 | /*nand_print (dev); */ | |
813 | ||
814 | if (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN) { | |
815 | return 1; | |
816 | } | |
817 | ||
818 | curr_device = dev; | |
819 | ||
820 | puts ("... is now current device\n"); | |
821 | ||
822 | return 0; | |
823 | } else if (strcmp (argv[1], "erase") == 0 | |
824 | && strcmp (argv[2], "clean") == 0) { | |
825 | struct nand_chip *nand = &nand_dev_desc[curr_device]; | |
826 | ulong off = 0; | |
827 | ulong size = nand->totlen; | |
828 | int ret; | |
829 | ||
830 | printf ("\nNAND erase: device %d offset %ld, size %ld ... ", curr_device, off, size); | |
831 | ||
832 | ret = nand_legacy_erase (nand, off, size, 1); | |
833 | ||
834 | printf ("%s\n", ret ? "ERROR" : "OK"); | |
835 | ||
836 | return ret; | |
837 | } | |
838 | ||
839 | cmd_usage(cmdtp); | |
840 | return 1; | |
841 | default: | |
842 | /* at least 4 args */ | |
843 | ||
844 | if (strncmp (argv[1], "read", 4) == 0 || | |
845 | strncmp (argv[1], "write", 5) == 0) { | |
846 | ulong addr = simple_strtoul (argv[2], NULL, 16); | |
847 | off_t off = simple_strtoul (argv[3], NULL, 16); | |
848 | size_t size = simple_strtoul (argv[4], NULL, 16); | |
849 | int cmd = (strncmp (argv[1], "read", 4) == 0) ? | |
850 | NANDRW_READ : NANDRW_WRITE; | |
851 | size_t total; | |
852 | int ret; | |
853 | char *cmdtail = strchr (argv[1], '.'); | |
854 | ||
855 | if (cmdtail && !strncmp (cmdtail, ".oob", 2)) { | |
856 | /* read out-of-band data */ | |
857 | if (cmd & NANDRW_READ) { | |
858 | ret = nand_read_oob (nand_dev_desc + curr_device, | |
859 | off, size, &total, | |
860 | (u_char *) addr); | |
861 | } else { | |
862 | ret = nand_write_oob (nand_dev_desc + curr_device, | |
863 | off, size, &total, | |
864 | (u_char *) addr); | |
865 | } | |
866 | return ret; | |
867 | } else if (cmdtail && !strncmp (cmdtail, ".jffs2s", 7)) { | |
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 | } else if (cmdtail && !strncmp (cmdtail, ".jffs2", 2)) | |
872 | cmd |= NANDRW_JFFS2; /* skip bad blocks */ | |
873 | #ifdef SXNI855T | |
874 | /* need ".e" same as ".j" for compatibility with older units */ | |
875 | else if (cmdtail && !strcmp (cmdtail, ".e")) | |
876 | cmd |= NANDRW_JFFS2; /* skip bad blocks */ | |
877 | #endif | |
878 | #ifdef CONFIG_SYS_NAND_SKIP_BAD_DOT_I | |
879 | /* need ".i" same as ".jffs2s" for compatibility with older units (esd) */ | |
880 | /* ".i" for image -> read skips bad block (no 0xff) */ | |
881 | else if (cmdtail && !strcmp (cmdtail, ".i")) { | |
882 | cmd |= NANDRW_JFFS2; /* skip bad blocks (on read too) */ | |
883 | if (cmd & NANDRW_READ) | |
884 | cmd |= NANDRW_JFFS2_SKIP; /* skip bad blocks (on read too) */ | |
885 | } | |
886 | #endif /* CONFIG_SYS_NAND_SKIP_BAD_DOT_I */ | |
887 | else if (cmdtail) { | |
888 | cmd_usage(cmdtp); | |
889 | return 1; | |
890 | } | |
891 | ||
892 | printf ("\nNAND %s: device %d offset %ld, size %lu ...\n", | |
893 | (cmd & NANDRW_READ) ? "read" : "write", | |
894 | curr_device, off, (ulong)size); | |
895 | ||
896 | ret = nand_legacy_rw (nand_dev_desc + curr_device, | |
897 | cmd, off, size, | |
898 | &total, (u_char *) addr); | |
899 | ||
900 | printf (" %d bytes %s: %s\n", total, | |
901 | (cmd & NANDRW_READ) ? "read" : "written", | |
902 | ret ? "ERROR" : "OK"); | |
903 | ||
904 | return ret; | |
905 | } else if (strcmp (argv[1], "erase") == 0 && | |
906 | (argc == 4 || strcmp ("clean", argv[2]) == 0)) { | |
907 | int clean = argc == 5; | |
908 | ulong off = | |
909 | simple_strtoul (argv[2 + clean], NULL, 16); | |
910 | ulong size = | |
911 | simple_strtoul (argv[3 + clean], NULL, 16); | |
912 | int ret; | |
913 | ||
914 | printf ("\nNAND erase: device %d offset %ld, size %ld ...\n", | |
915 | curr_device, off, size); | |
916 | ||
917 | ret = nand_legacy_erase (nand_dev_desc + curr_device, | |
918 | off, size, clean); | |
919 | ||
920 | printf ("%s\n", ret ? "ERROR" : "OK"); | |
921 | ||
922 | return ret; | |
923 | } else { | |
924 | cmd_usage(cmdtp); | |
925 | rcode = 1; | |
926 | } | |
927 | ||
928 | return rcode; | |
929 | } | |
930 | } | |
931 | ||
932 | U_BOOT_CMD( | |
933 | nand, 5, 1, do_nand, | |
934 | "legacy NAND sub-system", | |
935 | "info - show available NAND devices\n" | |
936 | "nand device [dev] - show or set current device\n" | |
937 | "nand read[.jffs2[s]] addr off size\n" | |
938 | "nand write[.jffs2] addr off size - read/write `size' bytes starting\n" | |
939 | " at offset `off' to/from memory address `addr'\n" | |
940 | "nand erase [clean] [off size] - erase `size' bytes from\n" | |
941 | " offset `off' (entire device if not specified)\n" | |
942 | "nand bad - show bad blocks\n" | |
943 | "nand read.oob addr off size - read out-of-band data\n" | |
944 | "nand write.oob addr off size - read out-of-band data\n" | |
945 | ); | |
946 | ||
947 | int do_nandboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) | |
948 | { | |
949 | char *boot_device = NULL; | |
950 | char *ep; | |
951 | int dev; | |
952 | ulong cnt; | |
953 | ulong addr; | |
954 | ulong offset = 0; | |
955 | image_header_t *hdr; | |
956 | int rcode = 0; | |
957 | #if defined(CONFIG_FIT) | |
958 | const void *fit_hdr = NULL; | |
959 | #endif | |
960 | ||
961 | show_boot_progress (52); | |
962 | switch (argc) { | |
963 | case 1: | |
964 | addr = CONFIG_SYS_LOAD_ADDR; | |
965 | boot_device = getenv ("bootdevice"); | |
966 | break; | |
967 | case 2: | |
968 | addr = simple_strtoul(argv[1], NULL, 16); | |
969 | boot_device = getenv ("bootdevice"); | |
970 | break; | |
971 | case 3: | |
972 | addr = simple_strtoul(argv[1], NULL, 16); | |
973 | boot_device = argv[2]; | |
974 | break; | |
975 | case 4: | |
976 | addr = simple_strtoul(argv[1], NULL, 16); | |
977 | boot_device = argv[2]; | |
978 | offset = simple_strtoul(argv[3], NULL, 16); | |
979 | break; | |
980 | default: | |
981 | cmd_usage(cmdtp); | |
982 | show_boot_progress (-53); | |
983 | return 1; | |
984 | } | |
985 | ||
986 | show_boot_progress (53); | |
987 | if (!boot_device) { | |
988 | puts ("\n** No boot device **\n"); | |
989 | show_boot_progress (-54); | |
990 | return 1; | |
991 | } | |
992 | show_boot_progress (54); | |
993 | ||
994 | dev = simple_strtoul(boot_device, &ep, 16); | |
995 | ||
996 | if ((dev >= CONFIG_SYS_MAX_NAND_DEVICE) || | |
997 | (nand_dev_desc[dev].ChipID == NAND_ChipID_UNKNOWN)) { | |
998 | printf ("\n** Device %d not available\n", dev); | |
999 | show_boot_progress (-55); | |
1000 | return 1; | |
1001 | } | |
1002 | show_boot_progress (55); | |
1003 | ||
1004 | printf ("\nLoading from device %d: %s at 0x%lx (offset 0x%lx)\n", | |
1005 | dev, nand_dev_desc[dev].name, nand_dev_desc[dev].IO_ADDR, | |
1006 | offset); | |
1007 | ||
1008 | if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, offset, | |
1009 | SECTORSIZE, NULL, (u_char *)addr)) { | |
1010 | printf ("** Read error on %d\n", dev); | |
1011 | show_boot_progress (-56); | |
1012 | return 1; | |
1013 | } | |
1014 | show_boot_progress (56); | |
1015 | ||
1016 | switch (genimg_get_format ((void *)addr)) { | |
1017 | case IMAGE_FORMAT_LEGACY: | |
1018 | hdr = (image_header_t *)addr; | |
1019 | image_print_contents (hdr); | |
1020 | ||
1021 | cnt = image_get_image_size (hdr); | |
1022 | cnt -= SECTORSIZE; | |
1023 | break; | |
1024 | #if defined(CONFIG_FIT) | |
1025 | case IMAGE_FORMAT_FIT: | |
1026 | fit_hdr = (const void *)addr; | |
1027 | puts ("Fit image detected...\n"); | |
1028 | ||
1029 | cnt = fit_get_size (fit_hdr); | |
1030 | break; | |
1031 | #endif | |
1032 | default: | |
1033 | show_boot_progress (-57); | |
1034 | puts ("** Unknown image type\n"); | |
1035 | return 1; | |
1036 | } | |
1037 | show_boot_progress (57); | |
1038 | ||
1039 | if (nand_legacy_rw (nand_dev_desc + dev, NANDRW_READ, | |
1040 | offset + SECTORSIZE, cnt, NULL, | |
1041 | (u_char *)(addr+SECTORSIZE))) { | |
1042 | printf ("** Read error on %d\n", dev); | |
1043 | show_boot_progress (-58); | |
1044 | return 1; | |
1045 | } | |
1046 | show_boot_progress (58); | |
1047 | ||
1048 | #if defined(CONFIG_FIT) | |
1049 | /* This cannot be done earlier, we need complete FIT image in RAM first */ | |
1050 | if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) { | |
1051 | if (!fit_check_format (fit_hdr)) { | |
1052 | show_boot_progress (-150); | |
1053 | puts ("** Bad FIT image format\n"); | |
1054 | return 1; | |
1055 | } | |
1056 | show_boot_progress (151); | |
1057 | fit_print_contents (fit_hdr); | |
1058 | } | |
1059 | #endif | |
1060 | ||
1061 | /* Loading ok, update default load address */ | |
1062 | ||
1063 | load_addr = addr; | |
1064 | ||
1065 | /* Check if we should attempt an auto-start */ | |
1066 | if (((ep = getenv("autostart")) != NULL) && (strcmp(ep,"yes") == 0)) { | |
1067 | char *local_args[2]; | |
1068 | extern int do_bootm (cmd_tbl_t *, int, int, char *[]); | |
1069 | ||
1070 | local_args[0] = argv[0]; | |
1071 | local_args[1] = NULL; | |
1072 | ||
1073 | printf ("Automatic boot of image at addr 0x%08lx ...\n", addr); | |
1074 | ||
1075 | do_bootm (cmdtp, 0, 1, local_args); | |
1076 | rcode = 1; | |
1077 | } | |
1078 | return rcode; | |
1079 | } | |
1080 | ||
1081 | U_BOOT_CMD( | |
1082 | nboot, 4, 1, do_nandboot, | |
1083 | "boot from NAND device", | |
1084 | "loadAddr dev\n" | |
1085 | ); | |
1086 | ||
1087 | #endif | |
1088 | ||
1089 | #endif /* CONFIG_NAND_LEGACY */ |