]>
Commit | Line | Data |
---|---|---|
d7e8ce10 KP |
1 | /* |
2 | * U-Boot command for OneNAND support | |
3 | * | |
c438ea17 | 4 | * Copyright (C) 2005-2008 Samsung Electronics |
d7e8ce10 KP |
5 | * Kyungmin Park <kyungmin.park@samsung.com> |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <common.h> | |
13 | #include <command.h> | |
c438ea17 | 14 | #include <malloc.h> |
d7e8ce10 | 15 | |
d7e8ce10 KP |
16 | #include <linux/mtd/compat.h> |
17 | #include <linux/mtd/mtd.h> | |
18 | #include <linux/mtd/onenand.h> | |
19 | ||
20 | #include <asm/io.h> | |
21 | ||
8d2effea SR |
22 | #if !defined(CONFIG_SYS_64BIT_VSPRINTF) |
23 | #warning Please define CONFIG_SYS_64BIT_VSPRINTF for correct output! | |
24 | #endif | |
25 | ||
c438ea17 SR |
26 | static struct mtd_info *mtd; |
27 | ||
28 | static loff_t next_ofs; | |
29 | static loff_t skip_ofs; | |
30 | ||
31 | static inline int str2long(char *p, ulong *num) | |
32 | { | |
33 | char *endptr; | |
34 | ||
35 | *num = simple_strtoul(p, &endptr, 16); | |
36 | return (*p != '\0' && *endptr == '\0') ? 1 : 0; | |
37 | } | |
38 | ||
39 | static int arg_off_size(int argc, char *argv[], ulong *off, size_t *size) | |
40 | { | |
41 | if (argc >= 1) { | |
42 | if (!(str2long(argv[0], off))) { | |
43 | printf("'%s' is not a number\n", argv[0]); | |
44 | return -1; | |
45 | } | |
46 | } else { | |
47 | *off = 0; | |
48 | } | |
49 | ||
50 | if (argc >= 2) { | |
51 | if (!(str2long(argv[1], (ulong *)size))) { | |
52 | printf("'%s' is not a number\n", argv[1]); | |
53 | return -1; | |
54 | } | |
55 | } else { | |
56 | *size = mtd->size - *off; | |
57 | } | |
58 | ||
59 | if ((*off + *size) > mtd->size) { | |
8d2effea | 60 | printf("total chip size (0x%llx) exceeded!\n", mtd->size); |
c438ea17 SR |
61 | return -1; |
62 | } | |
63 | ||
64 | if (*size == mtd->size) | |
65 | puts("whole chip\n"); | |
66 | else | |
67 | printf("offset 0x%lx, size 0x%x\n", *off, *size); | |
68 | ||
69 | return 0; | |
70 | } | |
71 | ||
72 | static int onenand_block_read(loff_t from, size_t len, | |
73 | size_t *retlen, u_char *buf, int oob) | |
74 | { | |
75 | struct onenand_chip *this = mtd->priv; | |
76 | int blocks = (int) len >> this->erase_shift; | |
77 | int blocksize = (1 << this->erase_shift); | |
78 | loff_t ofs = from; | |
79 | struct mtd_oob_ops ops = { | |
80 | .retlen = 0, | |
81 | }; | |
82 | int ret; | |
83 | ||
84 | if (oob) | |
85 | ops.ooblen = blocksize; | |
86 | else | |
87 | ops.len = blocksize; | |
88 | ||
89 | while (blocks) { | |
90 | ret = mtd->block_isbad(mtd, ofs); | |
91 | if (ret) { | |
92 | printk("Bad blocks %d at 0x%x\n", | |
93 | (u32)(ofs >> this->erase_shift), (u32)ofs); | |
94 | ofs += blocksize; | |
95 | continue; | |
96 | } | |
97 | ||
98 | if (oob) | |
99 | ops.oobbuf = buf; | |
100 | else | |
101 | ops.datbuf = buf; | |
102 | ||
103 | ops.retlen = 0; | |
104 | ret = mtd->read_oob(mtd, ofs, &ops); | |
105 | if (ret) { | |
106 | printk("Read failed 0x%x, %d\n", (u32)ofs, ret); | |
107 | ofs += blocksize; | |
108 | continue; | |
109 | } | |
110 | ofs += blocksize; | |
111 | buf += blocksize; | |
112 | blocks--; | |
113 | *retlen += ops.retlen; | |
114 | } | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
119 | static int onenand_block_write(loff_t to, size_t len, | |
120 | size_t *retlen, const u_char * buf) | |
121 | { | |
122 | struct onenand_chip *this = mtd->priv; | |
123 | int blocks = len >> this->erase_shift; | |
124 | int blocksize = (1 << this->erase_shift); | |
125 | loff_t ofs; | |
126 | size_t _retlen = 0; | |
127 | int ret; | |
128 | ||
129 | if (to == next_ofs) { | |
130 | next_ofs = to + len; | |
131 | to += skip_ofs; | |
132 | } else { | |
133 | next_ofs = to + len; | |
134 | skip_ofs = 0; | |
135 | } | |
136 | ofs = to; | |
137 | ||
138 | while (blocks) { | |
139 | ret = mtd->block_isbad(mtd, ofs); | |
140 | if (ret) { | |
141 | printk("Bad blocks %d at 0x%x\n", | |
142 | (u32)(ofs >> this->erase_shift), (u32)ofs); | |
143 | skip_ofs += blocksize; | |
144 | goto next; | |
145 | } | |
146 | ||
147 | ret = mtd->write(mtd, ofs, blocksize, &_retlen, buf); | |
148 | if (ret) { | |
149 | printk("Write failed 0x%x, %d", (u32)ofs, ret); | |
150 | skip_ofs += blocksize; | |
151 | goto next; | |
152 | } | |
153 | ||
154 | buf += blocksize; | |
155 | blocks--; | |
156 | *retlen += _retlen; | |
157 | next: | |
158 | ofs += blocksize; | |
159 | } | |
160 | ||
161 | return 0; | |
162 | } | |
163 | ||
164 | static int onenand_block_erase(u32 start, u32 size, int force) | |
165 | { | |
166 | struct onenand_chip *this = mtd->priv; | |
167 | struct erase_info instr = { | |
168 | .callback = NULL, | |
169 | }; | |
170 | loff_t ofs; | |
171 | int ret; | |
172 | int blocksize = 1 << this->erase_shift; | |
173 | ||
174 | for (ofs = start; ofs < (start + size); ofs += blocksize) { | |
175 | ret = mtd->block_isbad(mtd, ofs); | |
176 | if (ret && !force) { | |
177 | printf("Skip erase bad block %d at 0x%x\n", | |
178 | (u32)(ofs >> this->erase_shift), (u32)ofs); | |
179 | continue; | |
180 | } | |
181 | ||
182 | instr.addr = ofs; | |
183 | instr.len = blocksize; | |
184 | instr.priv = force; | |
185 | instr.mtd = mtd; | |
186 | ret = mtd->erase(mtd, &instr); | |
187 | if (ret) { | |
188 | printf("erase failed block %d at 0x%x\n", | |
189 | (u32)(ofs >> this->erase_shift), (u32)ofs); | |
190 | continue; | |
191 | } | |
192 | } | |
193 | ||
194 | return 0; | |
195 | } | |
196 | ||
197 | static int onenand_block_test(u32 start, u32 size) | |
198 | { | |
199 | struct onenand_chip *this = mtd->priv; | |
200 | struct erase_info instr = { | |
201 | .callback = NULL, | |
202 | .priv = 0, | |
203 | }; | |
204 | ||
205 | int blocks; | |
206 | loff_t ofs; | |
207 | int blocksize = 1 << this->erase_shift; | |
208 | int start_block, end_block; | |
209 | size_t retlen; | |
210 | u_char *buf; | |
211 | u_char *verify_buf; | |
212 | int ret; | |
213 | ||
214 | buf = malloc(blocksize); | |
215 | if (!buf) { | |
216 | printf("Not enough malloc space available!\n"); | |
217 | return -1; | |
218 | } | |
219 | ||
220 | verify_buf = malloc(blocksize); | |
221 | if (!verify_buf) { | |
222 | printf("Not enough malloc space available!\n"); | |
223 | return -1; | |
224 | } | |
225 | ||
226 | start_block = start >> this->erase_shift; | |
227 | end_block = (start + size) >> this->erase_shift; | |
228 | ||
229 | /* Protect boot-loader from badblock testing */ | |
230 | if (start_block < 2) | |
231 | start_block = 2; | |
232 | ||
233 | if (end_block > (mtd->size >> this->erase_shift)) | |
234 | end_block = mtd->size >> this->erase_shift; | |
235 | ||
236 | blocks = start_block; | |
237 | ofs = start; | |
238 | while (blocks < end_block) { | |
239 | printf("\rTesting block %d at 0x%x", (u32)(ofs >> this->erase_shift), (u32)ofs); | |
240 | ||
241 | ret = mtd->block_isbad(mtd, ofs); | |
242 | if (ret) { | |
243 | printf("Skip erase bad block %d at 0x%x\n", | |
244 | (u32)(ofs >> this->erase_shift), (u32)ofs); | |
245 | goto next; | |
246 | } | |
247 | ||
248 | instr.addr = ofs; | |
249 | instr.len = blocksize; | |
250 | ret = mtd->erase(mtd, &instr); | |
251 | if (ret) { | |
252 | printk("Erase failed 0x%x, %d\n", (u32)ofs, ret); | |
253 | goto next; | |
254 | } | |
255 | ||
256 | ret = mtd->write(mtd, ofs, blocksize, &retlen, buf); | |
257 | if (ret) { | |
258 | printk("Write failed 0x%x, %d\n", (u32)ofs, ret); | |
259 | goto next; | |
260 | } | |
261 | ||
262 | ret = mtd->read(mtd, ofs, blocksize, &retlen, verify_buf); | |
263 | if (ret) { | |
264 | printk("Read failed 0x%x, %d\n", (u32)ofs, ret); | |
265 | goto next; | |
266 | } | |
267 | ||
268 | if (memcmp(buf, verify_buf, blocksize)) | |
269 | printk("\nRead/Write test failed at 0x%x\n", (u32)ofs); | |
270 | ||
271 | next: | |
272 | ofs += blocksize; | |
273 | blocks++; | |
274 | } | |
275 | printf("...Done\n"); | |
276 | ||
277 | free(buf); | |
278 | free(verify_buf); | |
279 | ||
280 | return 0; | |
281 | } | |
282 | ||
283 | static int onenand_dump(struct mtd_info *mtd, ulong off, int only_oob) | |
284 | { | |
285 | int i; | |
286 | u_char *datbuf, *oobbuf, *p; | |
287 | struct mtd_oob_ops ops; | |
288 | loff_t addr; | |
289 | ||
290 | datbuf = malloc(mtd->writesize + mtd->oobsize); | |
291 | oobbuf = malloc(mtd->oobsize); | |
292 | if (!datbuf || !oobbuf) { | |
293 | puts("No memory for page buffer\n"); | |
294 | return 1; | |
295 | } | |
296 | off &= ~(mtd->writesize - 1); | |
297 | addr = (loff_t) off; | |
298 | memset(&ops, 0, sizeof(ops)); | |
299 | ops.datbuf = datbuf; | |
300 | ops.oobbuf = oobbuf; /* must exist, but oob data will be appended to ops.datbuf */ | |
301 | ops.len = mtd->writesize; | |
302 | ops.ooblen = mtd->oobsize; | |
303 | ops.retlen = 0; | |
304 | i = mtd->read_oob(mtd, addr, &ops); | |
305 | if (i < 0) { | |
306 | printf("Error (%d) reading page %08lx\n", i, off); | |
307 | free(datbuf); | |
308 | free(oobbuf); | |
309 | return 1; | |
310 | } | |
311 | printf("Page %08lx dump:\n", off); | |
312 | i = mtd->writesize >> 4; | |
313 | p = datbuf; | |
314 | ||
315 | while (i--) { | |
316 | if (!only_oob) | |
317 | printf("\t%02x %02x %02x %02x %02x %02x %02x %02x" | |
318 | " %02x %02x %02x %02x %02x %02x %02x %02x\n", | |
319 | p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], | |
320 | p[8], p[9], p[10], p[11], p[12], p[13], p[14], | |
321 | p[15]); | |
322 | p += 16; | |
323 | } | |
324 | puts("OOB:\n"); | |
325 | i = mtd->oobsize >> 3; | |
326 | while (i--) { | |
327 | printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n", | |
328 | p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]); | |
329 | p += 8; | |
330 | } | |
331 | free(datbuf); | |
332 | free(oobbuf); | |
333 | ||
334 | return 0; | |
335 | } | |
d7e8ce10 KP |
336 | |
337 | int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) | |
338 | { | |
c438ea17 SR |
339 | struct onenand_chip *this; |
340 | int blocksize; | |
341 | ulong addr, ofs; | |
342 | size_t len, retlen = 0; | |
8360b66b | 343 | int ret = 0; |
c438ea17 SR |
344 | char *cmd, *s; |
345 | ||
346 | mtd = &onenand_mtd; | |
347 | this = mtd->priv; | |
348 | blocksize = (1 << this->erase_shift); | |
349 | ||
350 | cmd = argv[1]; | |
d7e8ce10 KP |
351 | |
352 | switch (argc) { | |
353 | case 0: | |
354 | case 1: | |
c438ea17 | 355 | goto usage; |
d7e8ce10 KP |
356 | |
357 | case 2: | |
c438ea17 SR |
358 | if (strcmp(cmd, "info") == 0) { |
359 | printf("%s\n", mtd->name); | |
360 | return 0; | |
361 | } | |
362 | ||
363 | if (strcmp(cmd, "bad") == 0) { | |
364 | /* Currently only one OneNAND device is supported */ | |
365 | printf("\nDevice %d bad blocks:\n", 0); | |
366 | for (ofs = 0; ofs < mtd->size; ofs += mtd->erasesize) { | |
367 | if (mtd->block_isbad(mtd, ofs)) | |
368 | printf(" %08x\n", (u32)ofs); | |
369 | } | |
370 | ||
d7e8ce10 KP |
371 | return 0; |
372 | } | |
d7e8ce10 KP |
373 | |
374 | default: | |
375 | /* At least 4 args */ | |
a9da2b41 | 376 | |
c438ea17 SR |
377 | /* |
378 | * Syntax is: | |
379 | * 0 1 2 3 4 | |
380 | * onenand erase [force] [off size] | |
381 | */ | |
382 | if ((strcmp(cmd, "erase") == 0) || (strcmp(cmd, "test") == 0)) { | |
383 | int force = argc > 2 && !strcmp("force", argv[2]); | |
384 | int o = force ? 3 : 2; | |
385 | int erase; | |
d7e8ce10 | 386 | |
c438ea17 SR |
387 | erase = strcmp(cmd, "erase") == 0; /* 1 = erase, 0 = test */ |
388 | printf("\nOneNAND %s: ", erase ? "erase" : "test"); | |
d7e8ce10 | 389 | |
c438ea17 SR |
390 | /* skip first two or three arguments, look for offset and size */ |
391 | if (arg_off_size(argc - o, argv + o, &ofs, &len) != 0) | |
392 | return 1; | |
d7e8ce10 | 393 | |
c438ea17 SR |
394 | if (erase) |
395 | ret = onenand_block_erase(ofs, len, force); | |
396 | else | |
397 | ret = onenand_block_test(ofs, len); | |
d7e8ce10 | 398 | |
c438ea17 SR |
399 | printf("%s\n", ret ? "ERROR" : "OK"); |
400 | ||
401 | return ret == 0 ? 0 : 1; | |
d7e8ce10 KP |
402 | } |
403 | ||
c438ea17 SR |
404 | if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { |
405 | int read; | |
406 | int oob = 0; | |
bfd7f386 | 407 | |
c438ea17 SR |
408 | if (argc < 4) |
409 | goto usage; | |
bfd7f386 | 410 | |
c438ea17 | 411 | addr = (ulong)simple_strtoul(argv[2], NULL, 16); |
d7e8ce10 | 412 | |
c438ea17 SR |
413 | read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */ |
414 | printf("\nOneNAND %s: ", read ? "read" : "write"); | |
415 | if (arg_off_size(argc - 3, argv + 3, &ofs, &len) != 0) | |
416 | return 1; | |
d7e8ce10 | 417 | |
c438ea17 SR |
418 | s = strchr(cmd, '.'); |
419 | if ((s != NULL) && (!strcmp(s, ".oob"))) | |
420 | oob = 1; | |
d7e8ce10 | 421 | |
c438ea17 SR |
422 | if (read) { |
423 | ret = onenand_block_read(ofs, len, &retlen, | |
424 | (u8 *)addr, oob); | |
425 | } else { | |
426 | ret = onenand_block_write(ofs, len, &retlen, | |
427 | (u8 *)addr); | |
428 | } | |
d7e8ce10 | 429 | |
c438ea17 SR |
430 | printf(" %d bytes %s: %s\n", retlen, |
431 | read ? "read" : "written", ret ? "ERROR" : "OK"); | |
d7e8ce10 | 432 | |
c438ea17 | 433 | return ret == 0 ? 0 : 1; |
d7e8ce10 KP |
434 | } |
435 | ||
c438ea17 | 436 | if (strcmp(cmd, "markbad") == 0) { |
8360b66b WD |
437 | argc -= 2; |
438 | argv += 2; | |
bfd7f386 | 439 | |
8360b66b WD |
440 | if (argc <= 0) |
441 | goto usage; | |
442 | ||
443 | while (argc > 0) { | |
444 | addr = simple_strtoul(*argv, NULL, 16); | |
445 | ||
446 | if (mtd->block_markbad(mtd, addr)) { | |
447 | printf("block 0x%08lx NOT marked " | |
448 | "as bad! ERROR %d\n", | |
449 | addr, ret); | |
450 | ret = 1; | |
451 | } else { | |
452 | printf("block 0x%08lx successfully " | |
453 | "marked as bad\n", | |
454 | addr); | |
455 | } | |
456 | --argc; | |
457 | ++argv; | |
c438ea17 | 458 | } |
8360b66b | 459 | return ret; |
c438ea17 | 460 | } |
d7e8ce10 | 461 | |
c438ea17 SR |
462 | if (strncmp(cmd, "dump", 4) == 0) { |
463 | if (argc < 3) | |
464 | goto usage; | |
d7e8ce10 | 465 | |
c438ea17 SR |
466 | s = strchr(cmd, '.'); |
467 | ofs = (int)simple_strtoul(argv[2], NULL, 16); | |
bfd7f386 | 468 | |
c438ea17 SR |
469 | if (s != NULL && strcmp(s, ".oob") == 0) |
470 | ret = onenand_dump(mtd, ofs, 1); | |
471 | else | |
472 | ret = onenand_dump(mtd, ofs, 0); | |
d7e8ce10 | 473 | |
c438ea17 | 474 | return ret == 0 ? 1 : 0; |
d7e8ce10 KP |
475 | } |
476 | ||
477 | break; | |
478 | } | |
479 | ||
480 | return 0; | |
c438ea17 SR |
481 | |
482 | usage: | |
62c3ae7c | 483 | cmd_usage(cmdtp); |
c438ea17 | 484 | return 1; |
d7e8ce10 KP |
485 | } |
486 | ||
487 | U_BOOT_CMD( | |
8360b66b | 488 | onenand, CONFIG_SYS_MAXARGS, 1, do_onenand, |
2fb2604d | 489 | "OneNAND sub-system", |
c438ea17 SR |
490 | "info - show available OneNAND devices\n" |
491 | "onenand bad - show bad blocks\n" | |
492 | "onenand read[.oob] addr off size\n" | |
493 | "onenand write[.oob] addr off size\n" | |
494 | " read/write 'size' bytes starting at offset 'off'\n" | |
495 | " to/from memory address 'addr', skipping bad blocks.\n" | |
496 | "onenand erase [force] [off size] - erase 'size' bytes from\n" | |
497 | "onenand test [off size] - test 'size' bytes from\n" | |
498 | " offset 'off' (entire device if not specified)\n" | |
499 | "onenand dump[.oob] off - dump page\n" | |
a89c33db | 500 | "onenand markbad off [...] - mark bad block(s) at offset (UNSAFE)" |
d7e8ce10 | 501 | ); |