blob: d97844fa7a3823e01d4d45417a9ec81b871f1e34 [file] [log] [blame]
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +09001/*
2 * U-Boot command for OneNAND support
3 *
Stefan Roesec438ea12008-11-12 13:47:24 +01004 * Copyright (C) 2005-2008 Samsung Electronics
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +09005 * 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>
Stefan Roesec438ea12008-11-12 13:47:24 +010014#include <malloc.h>
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +090015
Mike Frysinger7b15e2b2012-04-09 13:39:55 +000016#include <linux/compat.h>
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +090017#include <linux/mtd/mtd.h>
18#include <linux/mtd/onenand.h>
19
20#include <asm/io.h>
21
Stefan Roesec438ea12008-11-12 13:47:24 +010022static struct mtd_info *mtd;
23
24static loff_t next_ofs;
25static loff_t skip_ofs;
26
Heiko Schocher09c32802015-04-27 07:42:05 +020027static int arg_off_size_onenand(int argc, char * const argv[], ulong *off,
28 size_t *size)
Stefan Roesec438ea12008-11-12 13:47:24 +010029{
30 if (argc >= 1) {
31 if (!(str2long(argv[0], off))) {
32 printf("'%s' is not a number\n", argv[0]);
33 return -1;
34 }
35 } else {
36 *off = 0;
37 }
38
39 if (argc >= 2) {
40 if (!(str2long(argv[1], (ulong *)size))) {
41 printf("'%s' is not a number\n", argv[1]);
42 return -1;
43 }
44 } else {
45 *size = mtd->size - *off;
46 }
47
48 if ((*off + *size) > mtd->size) {
Stefan Roese8d2effe2009-05-11 16:03:55 +020049 printf("total chip size (0x%llx) exceeded!\n", mtd->size);
Stefan Roesec438ea12008-11-12 13:47:24 +010050 return -1;
51 }
52
53 if (*size == mtd->size)
54 puts("whole chip\n");
55 else
56 printf("offset 0x%lx, size 0x%x\n", *off, *size);
57
58 return 0;
59}
60
61static int onenand_block_read(loff_t from, size_t len,
62 size_t *retlen, u_char *buf, int oob)
63{
64 struct onenand_chip *this = mtd->priv;
65 int blocks = (int) len >> this->erase_shift;
66 int blocksize = (1 << this->erase_shift);
67 loff_t ofs = from;
68 struct mtd_oob_ops ops = {
69 .retlen = 0,
70 };
71 int ret;
72
73 if (oob)
74 ops.ooblen = blocksize;
75 else
76 ops.len = blocksize;
77
78 while (blocks) {
Sergey Lapindfe64e22013-01-14 03:46:50 +000079 ret = mtd_block_isbad(mtd, ofs);
Stefan Roesec438ea12008-11-12 13:47:24 +010080 if (ret) {
81 printk("Bad blocks %d at 0x%x\n",
82 (u32)(ofs >> this->erase_shift), (u32)ofs);
83 ofs += blocksize;
84 continue;
85 }
86
87 if (oob)
88 ops.oobbuf = buf;
89 else
90 ops.datbuf = buf;
91
92 ops.retlen = 0;
Sergey Lapindfe64e22013-01-14 03:46:50 +000093 ret = mtd_read_oob(mtd, ofs, &ops);
Stefan Roesec438ea12008-11-12 13:47:24 +010094 if (ret) {
95 printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
96 ofs += blocksize;
97 continue;
98 }
99 ofs += blocksize;
100 buf += blocksize;
101 blocks--;
102 *retlen += ops.retlen;
103 }
104
105 return 0;
106}
107
Lei Wen41c86242010-12-02 05:17:55 +0000108static int onenand_write_oneblock_withoob(loff_t to, const u_char * buf,
109 size_t *retlen)
110{
111 struct mtd_oob_ops ops = {
112 .len = mtd->writesize,
113 .ooblen = mtd->oobsize,
Sergey Lapindfe64e22013-01-14 03:46:50 +0000114 .mode = MTD_OPS_AUTO_OOB,
Lei Wen41c86242010-12-02 05:17:55 +0000115 };
116 int page, ret = 0;
117 for (page = 0; page < (mtd->erasesize / mtd->writesize); page ++) {
118 ops.datbuf = (u_char *)buf;
119 buf += mtd->writesize;
120 ops.oobbuf = (u_char *)buf;
121 buf += mtd->oobsize;
Sergey Lapindfe64e22013-01-14 03:46:50 +0000122 ret = mtd_write_oob(mtd, to, &ops);
Lei Wen41c86242010-12-02 05:17:55 +0000123 if (ret)
124 break;
125 to += mtd->writesize;
126 }
127
128 *retlen = (ret) ? 0 : mtd->erasesize;
129 return ret;
130}
131
Stefan Roesec438ea12008-11-12 13:47:24 +0100132static int onenand_block_write(loff_t to, size_t len,
Lei Wen41c86242010-12-02 05:17:55 +0000133 size_t *retlen, const u_char * buf, int withoob)
Stefan Roesec438ea12008-11-12 13:47:24 +0100134{
135 struct onenand_chip *this = mtd->priv;
136 int blocks = len >> this->erase_shift;
137 int blocksize = (1 << this->erase_shift);
138 loff_t ofs;
139 size_t _retlen = 0;
140 int ret;
141
Ladislav Michl9c00d982016-09-13 07:40:00 +0200142 if ((to & (mtd->writesize - 1)) != 0) {
143 printf("Attempt to write non block-aligned data\n");
144 *retlen = 0;
145 return 1;
146 }
147
Stefan Roesec438ea12008-11-12 13:47:24 +0100148 if (to == next_ofs) {
149 next_ofs = to + len;
150 to += skip_ofs;
151 } else {
152 next_ofs = to + len;
153 skip_ofs = 0;
154 }
155 ofs = to;
156
157 while (blocks) {
Sergey Lapindfe64e22013-01-14 03:46:50 +0000158 ret = mtd_block_isbad(mtd, ofs);
Stefan Roesec438ea12008-11-12 13:47:24 +0100159 if (ret) {
160 printk("Bad blocks %d at 0x%x\n",
161 (u32)(ofs >> this->erase_shift), (u32)ofs);
162 skip_ofs += blocksize;
163 goto next;
164 }
165
Lei Wen41c86242010-12-02 05:17:55 +0000166 if (!withoob)
Sergey Lapindfe64e22013-01-14 03:46:50 +0000167 ret = mtd_write(mtd, ofs, blocksize, &_retlen, buf);
Lei Wen41c86242010-12-02 05:17:55 +0000168 else
169 ret = onenand_write_oneblock_withoob(ofs, buf, &_retlen);
Stefan Roesec438ea12008-11-12 13:47:24 +0100170 if (ret) {
171 printk("Write failed 0x%x, %d", (u32)ofs, ret);
172 skip_ofs += blocksize;
173 goto next;
174 }
175
176 buf += blocksize;
177 blocks--;
178 *retlen += _retlen;
179next:
180 ofs += blocksize;
181 }
182
183 return 0;
184}
185
186static int onenand_block_erase(u32 start, u32 size, int force)
187{
188 struct onenand_chip *this = mtd->priv;
189 struct erase_info instr = {
190 .callback = NULL,
191 };
192 loff_t ofs;
193 int ret;
194 int blocksize = 1 << this->erase_shift;
195
196 for (ofs = start; ofs < (start + size); ofs += blocksize) {
Sergey Lapindfe64e22013-01-14 03:46:50 +0000197 ret = mtd_block_isbad(mtd, ofs);
Stefan Roesec438ea12008-11-12 13:47:24 +0100198 if (ret && !force) {
199 printf("Skip erase bad block %d at 0x%x\n",
200 (u32)(ofs >> this->erase_shift), (u32)ofs);
201 continue;
202 }
203
204 instr.addr = ofs;
205 instr.len = blocksize;
206 instr.priv = force;
207 instr.mtd = mtd;
Sergey Lapindfe64e22013-01-14 03:46:50 +0000208 ret = mtd_erase(mtd, &instr);
Stefan Roesec438ea12008-11-12 13:47:24 +0100209 if (ret) {
210 printf("erase failed block %d at 0x%x\n",
211 (u32)(ofs >> this->erase_shift), (u32)ofs);
212 continue;
213 }
214 }
215
216 return 0;
217}
218
219static int onenand_block_test(u32 start, u32 size)
220{
221 struct onenand_chip *this = mtd->priv;
222 struct erase_info instr = {
223 .callback = NULL,
224 .priv = 0,
225 };
226
227 int blocks;
228 loff_t ofs;
229 int blocksize = 1 << this->erase_shift;
230 int start_block, end_block;
231 size_t retlen;
232 u_char *buf;
233 u_char *verify_buf;
234 int ret;
235
236 buf = malloc(blocksize);
237 if (!buf) {
238 printf("Not enough malloc space available!\n");
239 return -1;
240 }
241
242 verify_buf = malloc(blocksize);
243 if (!verify_buf) {
244 printf("Not enough malloc space available!\n");
245 return -1;
246 }
247
248 start_block = start >> this->erase_shift;
249 end_block = (start + size) >> this->erase_shift;
250
251 /* Protect boot-loader from badblock testing */
252 if (start_block < 2)
253 start_block = 2;
254
255 if (end_block > (mtd->size >> this->erase_shift))
256 end_block = mtd->size >> this->erase_shift;
257
258 blocks = start_block;
259 ofs = start;
260 while (blocks < end_block) {
261 printf("\rTesting block %d at 0x%x", (u32)(ofs >> this->erase_shift), (u32)ofs);
262
Sergey Lapindfe64e22013-01-14 03:46:50 +0000263 ret = mtd_block_isbad(mtd, ofs);
Stefan Roesec438ea12008-11-12 13:47:24 +0100264 if (ret) {
265 printf("Skip erase bad block %d at 0x%x\n",
266 (u32)(ofs >> this->erase_shift), (u32)ofs);
267 goto next;
268 }
269
270 instr.addr = ofs;
271 instr.len = blocksize;
Sergey Lapindfe64e22013-01-14 03:46:50 +0000272 ret = mtd_erase(mtd, &instr);
Stefan Roesec438ea12008-11-12 13:47:24 +0100273 if (ret) {
274 printk("Erase failed 0x%x, %d\n", (u32)ofs, ret);
275 goto next;
276 }
277
Sergey Lapindfe64e22013-01-14 03:46:50 +0000278 ret = mtd_write(mtd, ofs, blocksize, &retlen, buf);
Stefan Roesec438ea12008-11-12 13:47:24 +0100279 if (ret) {
280 printk("Write failed 0x%x, %d\n", (u32)ofs, ret);
281 goto next;
282 }
283
Sergey Lapindfe64e22013-01-14 03:46:50 +0000284 ret = mtd_read(mtd, ofs, blocksize, &retlen, verify_buf);
Stefan Roesec438ea12008-11-12 13:47:24 +0100285 if (ret) {
286 printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
287 goto next;
288 }
289
290 if (memcmp(buf, verify_buf, blocksize))
291 printk("\nRead/Write test failed at 0x%x\n", (u32)ofs);
292
293next:
294 ofs += blocksize;
295 blocks++;
296 }
297 printf("...Done\n");
298
299 free(buf);
300 free(verify_buf);
301
302 return 0;
303}
304
305static int onenand_dump(struct mtd_info *mtd, ulong off, int only_oob)
306{
307 int i;
308 u_char *datbuf, *oobbuf, *p;
309 struct mtd_oob_ops ops;
310 loff_t addr;
311
312 datbuf = malloc(mtd->writesize + mtd->oobsize);
313 oobbuf = malloc(mtd->oobsize);
314 if (!datbuf || !oobbuf) {
315 puts("No memory for page buffer\n");
316 return 1;
317 }
318 off &= ~(mtd->writesize - 1);
319 addr = (loff_t) off;
320 memset(&ops, 0, sizeof(ops));
321 ops.datbuf = datbuf;
Lei Wena430b132010-12-07 09:38:18 +0800322 ops.oobbuf = oobbuf;
Stefan Roesec438ea12008-11-12 13:47:24 +0100323 ops.len = mtd->writesize;
324 ops.ooblen = mtd->oobsize;
325 ops.retlen = 0;
Sergey Lapindfe64e22013-01-14 03:46:50 +0000326 i = mtd_read_oob(mtd, addr, &ops);
Stefan Roesec438ea12008-11-12 13:47:24 +0100327 if (i < 0) {
328 printf("Error (%d) reading page %08lx\n", i, off);
329 free(datbuf);
330 free(oobbuf);
331 return 1;
332 }
333 printf("Page %08lx dump:\n", off);
334 i = mtd->writesize >> 4;
335 p = datbuf;
336
337 while (i--) {
338 if (!only_oob)
339 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
340 " %02x %02x %02x %02x %02x %02x %02x %02x\n",
341 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
342 p[8], p[9], p[10], p[11], p[12], p[13], p[14],
343 p[15]);
344 p += 16;
345 }
346 puts("OOB:\n");
347 i = mtd->oobsize >> 3;
Lei Wena430b132010-12-07 09:38:18 +0800348 p = oobbuf;
349
Stefan Roesec438ea12008-11-12 13:47:24 +0100350 while (i--) {
351 printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
352 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
353 p += 8;
354 }
355 free(datbuf);
356 free(oobbuf);
357
358 return 0;
359}
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900360
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200361static int do_onenand_info(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900362{
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100363 printf("%s\n", mtd->name);
364 return 0;
365}
366
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200367static int do_onenand_bad(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100368{
369 ulong ofs;
Stefan Roesec438ea12008-11-12 13:47:24 +0100370
371 mtd = &onenand_mtd;
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100372 /* Currently only one OneNAND device is supported */
373 printf("\nDevice %d bad blocks:\n", 0);
374 for (ofs = 0; ofs < mtd->size; ofs += mtd->erasesize) {
Sergey Lapindfe64e22013-01-14 03:46:50 +0000375 if (mtd_block_isbad(mtd, ofs))
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100376 printf(" %08x\n", (u32)ofs);
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900377 }
378
379 return 0;
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100380}
Stefan Roesec438ea12008-11-12 13:47:24 +0100381
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200382static int do_onenand_read(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100383{
384 char *s;
385 int oob = 0;
386 ulong addr, ofs;
387 size_t len;
388 int ret = 0;
389 size_t retlen = 0;
390
391 if (argc < 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000392 return CMD_RET_USAGE;
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100393
394 s = strchr(argv[0], '.');
395 if ((s != NULL) && (!strcmp(s, ".oob")))
396 oob = 1;
397
398 addr = (ulong)simple_strtoul(argv[1], NULL, 16);
399
400 printf("\nOneNAND read: ");
Heiko Schocher09c32802015-04-27 07:42:05 +0200401 if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0)
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100402 return 1;
403
404 ret = onenand_block_read(ofs, len, &retlen, (u8 *)addr, oob);
405
406 printf(" %d bytes read: %s\n", retlen, ret ? "ERROR" : "OK");
407
408 return ret == 0 ? 0 : 1;
409}
410
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200411static int do_onenand_write(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100412{
413 ulong addr, ofs;
414 size_t len;
Lei Wen41c86242010-12-02 05:17:55 +0000415 int ret = 0, withoob = 0;
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100416 size_t retlen = 0;
417
418 if (argc < 3)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000419 return CMD_RET_USAGE;
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100420
Lei Wen41c86242010-12-02 05:17:55 +0000421 if (strncmp(argv[0] + 6, "yaffs", 5) == 0)
422 withoob = 1;
423
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100424 addr = (ulong)simple_strtoul(argv[1], NULL, 16);
425
426 printf("\nOneNAND write: ");
Heiko Schocher09c32802015-04-27 07:42:05 +0200427 if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0)
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100428 return 1;
429
Lei Wen41c86242010-12-02 05:17:55 +0000430 ret = onenand_block_write(ofs, len, &retlen, (u8 *)addr, withoob);
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100431
432 printf(" %d bytes written: %s\n", retlen, ret ? "ERROR" : "OK");
433
434 return ret == 0 ? 0 : 1;
435}
436
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200437static int do_onenand_erase(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100438{
439 ulong ofs;
440 int ret = 0;
441 size_t len;
442 int force;
443
444 /*
445 * Syntax is:
446 * 0 1 2 3 4
447 * onenand erase [force] [off size]
448 */
449 argc--;
450 argv++;
451 if (argc)
452 {
453 if (!strcmp("force", argv[0]))
454 {
455 force = 1;
456 argc--;
457 argv++;
458 }
459 }
460 printf("\nOneNAND erase: ");
461
462 /* skip first two or three arguments, look for offset and size */
Heiko Schocher09c32802015-04-27 07:42:05 +0200463 if (arg_off_size_onenand(argc, argv, &ofs, &len) != 0)
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100464 return 1;
465
466 ret = onenand_block_erase(ofs, len, force);
467
468 printf("%s\n", ret ? "ERROR" : "OK");
469
470 return ret == 0 ? 0 : 1;
471}
472
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200473static int do_onenand_test(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100474{
475 ulong ofs;
476 int ret = 0;
477 size_t len;
478
479 /*
480 * Syntax is:
481 * 0 1 2 3 4
482 * onenand test [force] [off size]
483 */
484
485 printf("\nOneNAND test: ");
486
487 /* skip first two or three arguments, look for offset and size */
Heiko Schocher09c32802015-04-27 07:42:05 +0200488 if (arg_off_size_onenand(argc - 1, argv + 1, &ofs, &len) != 0)
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100489 return 1;
490
491 ret = onenand_block_test(ofs, len);
492
493 printf("%s\n", ret ? "ERROR" : "OK");
494
495 return ret == 0 ? 0 : 1;
496}
497
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200498static int do_onenand_dump(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100499{
500 ulong ofs;
501 int ret = 0;
502 char *s;
503
504 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000505 return CMD_RET_USAGE;
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100506
507 s = strchr(argv[0], '.');
508 ofs = (int)simple_strtoul(argv[1], NULL, 16);
509
510 if (s != NULL && strcmp(s, ".oob") == 0)
511 ret = onenand_dump(mtd, ofs, 1);
512 else
513 ret = onenand_dump(mtd, ofs, 0);
514
515 return ret == 0 ? 1 : 0;
516}
517
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200518static int do_onenand_markbad(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100519{
520 int ret = 0;
521 ulong addr;
522
523 argc -= 2;
524 argv += 2;
525
526 if (argc <= 0)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000527 return CMD_RET_USAGE;
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100528
529 while (argc > 0) {
530 addr = simple_strtoul(*argv, NULL, 16);
531
Sergey Lapindfe64e22013-01-14 03:46:50 +0000532 if (mtd_block_markbad(mtd, addr)) {
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100533 printf("block 0x%08lx NOT marked "
534 "as bad! ERROR %d\n",
535 addr, ret);
536 ret = 1;
537 } else {
538 printf("block 0x%08lx successfully "
539 "marked as bad\n",
540 addr);
541 }
542 --argc;
543 ++argv;
544 }
545 return ret;
546}
547
548static cmd_tbl_t cmd_onenand_sub[] = {
549 U_BOOT_CMD_MKENT(info, 1, 0, do_onenand_info, "", ""),
550 U_BOOT_CMD_MKENT(bad, 1, 0, do_onenand_bad, "", ""),
551 U_BOOT_CMD_MKENT(read, 4, 0, do_onenand_read, "", ""),
552 U_BOOT_CMD_MKENT(write, 4, 0, do_onenand_write, "", ""),
Lei Wen41c86242010-12-02 05:17:55 +0000553 U_BOOT_CMD_MKENT(write.yaffs, 4, 0, do_onenand_write, "", ""),
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100554 U_BOOT_CMD_MKENT(erase, 3, 0, do_onenand_erase, "", ""),
555 U_BOOT_CMD_MKENT(test, 3, 0, do_onenand_test, "", ""),
556 U_BOOT_CMD_MKENT(dump, 2, 0, do_onenand_dump, "", ""),
557 U_BOOT_CMD_MKENT(markbad, CONFIG_SYS_MAXARGS, 0, do_onenand_markbad, "", ""),
558};
559
Wolfgang Denk2e5167c2010-10-28 20:00:11 +0200560#ifdef CONFIG_NEEDS_MANUAL_RELOC
Enric Balletbo i Serracdb1d4f2010-10-19 11:13:22 +0200561void onenand_reloc(void) {
562 fixup_cmdtable(cmd_onenand_sub, ARRAY_SIZE(cmd_onenand_sub));
563}
564#endif
565
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200566static int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100567{
568 cmd_tbl_t *c;
569
Enric Balletbo i Serra57ff9f22010-10-19 11:13:21 +0200570 if (argc < 2)
Simon Glass4c12eeb2011-12-10 08:44:01 +0000571 return CMD_RET_USAGE;
Enric Balletbo i Serra57ff9f22010-10-19 11:13:21 +0200572
Frans Meulenbroeks8cd85282010-03-27 17:14:36 +0100573 mtd = &onenand_mtd;
574
575 /* Strip off leading 'onenand' command argument */
576 argc--;
577 argv++;
578
579 c = find_cmd_tbl(argv[0], &cmd_onenand_sub[0], ARRAY_SIZE(cmd_onenand_sub));
580
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200581 if (c)
582 return c->cmd(cmdtp, flag, argc, argv);
583 else
Simon Glass4c12eeb2011-12-10 08:44:01 +0000584 return CMD_RET_USAGE;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900585}
586
587U_BOOT_CMD(
Wolfgang Denk8360b662009-05-24 17:34:33 +0200588 onenand, CONFIG_SYS_MAXARGS, 1, do_onenand,
Peter Tyser2fb26042009-01-27 18:03:12 -0600589 "OneNAND sub-system",
Stefan Roesec438ea12008-11-12 13:47:24 +0100590 "info - show available OneNAND devices\n"
591 "onenand bad - show bad blocks\n"
592 "onenand read[.oob] addr off size\n"
Lei Wen41c86242010-12-02 05:17:55 +0000593 "onenand write[.yaffs] addr off size\n"
Stefan Roesec438ea12008-11-12 13:47:24 +0100594 " read/write 'size' bytes starting at offset 'off'\n"
595 " to/from memory address 'addr', skipping bad blocks.\n"
596 "onenand erase [force] [off size] - erase 'size' bytes from\n"
597 "onenand test [off size] - test 'size' bytes from\n"
598 " offset 'off' (entire device if not specified)\n"
599 "onenand dump[.oob] off - dump page\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200600 "onenand markbad off [...] - mark bad block(s) at offset (UNSAFE)"
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900601);