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