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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
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +090016#include <linux/mtd/compat.h>
17#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
27static 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
35static 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) {
Stefan Roese8d2effe2009-05-11 16:03:55 +020056 printf("total chip size (0x%llx) exceeded!\n", mtd->size);
Stefan Roesec438ea12008-11-12 13:47:24 +010057 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
68static 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
115static 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;
153next:
154 ofs += blocksize;
155 }
156
157 return 0;
158}
159
160static 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
193static 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
267next:
268 ofs += blocksize;
269 blocks++;
270 }
271 printf("...Done\n");
272
273 free(buf);
274 free(verify_buf);
275
276 return 0;
277}
278
279static 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}
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900332
333int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
334{
Stefan Roesec438ea12008-11-12 13:47:24 +0100335 struct onenand_chip *this;
336 int blocksize;
337 ulong addr, ofs;
338 size_t len, retlen = 0;
Wolfgang Denk8360b662009-05-24 17:34:33 +0200339 int ret = 0;
Stefan Roesec438ea12008-11-12 13:47:24 +0100340 char *cmd, *s;
341
342 mtd = &onenand_mtd;
343 this = mtd->priv;
344 blocksize = (1 << this->erase_shift);
345
346 cmd = argv[1];
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900347
348 switch (argc) {
349 case 0:
350 case 1:
Stefan Roesec438ea12008-11-12 13:47:24 +0100351 goto usage;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900352
353 case 2:
Stefan Roesec438ea12008-11-12 13:47:24 +0100354 if (strcmp(cmd, "info") == 0) {
355 printf("%s\n", mtd->name);
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900356 return 0;
357 }
Stefan Roesec438ea12008-11-12 13:47:24 +0100358
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
367 return 0;
368 }
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900369
370 default:
371 /* At least 4 args */
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900372
Stefan Roesec438ea12008-11-12 13:47:24 +0100373 /*
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;
Kyungmin Parka9da2b42008-03-31 10:40:19 +0900382
Stefan Roesec438ea12008-11-12 13:47:24 +0100383 erase = strcmp(cmd, "erase") == 0; /* 1 = erase, 0 = test */
384 printf("\nOneNAND %s: ", erase ? "erase" : "test");
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900385
Stefan Roesec438ea12008-11-12 13:47:24 +0100386 /* 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;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900389
Stefan Roesec438ea12008-11-12 13:47:24 +0100390 if (erase)
391 ret = onenand_block_erase(ofs, len, force);
392 else
393 ret = onenand_block_test(ofs, len);
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900394
Stefan Roesec438ea12008-11-12 13:47:24 +0100395 printf("%s\n", ret ? "ERROR" : "OK");
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900396
Stefan Roesec438ea12008-11-12 13:47:24 +0100397 return ret == 0 ? 0 : 1;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900398 }
399
Stefan Roesec438ea12008-11-12 13:47:24 +0100400 if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
401 int read;
402 int oob = 0;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900403
Stefan Roesec438ea12008-11-12 13:47:24 +0100404 if (argc < 4)
405 goto usage;
Kyungmin Parkbfd7f382008-08-19 08:42:53 +0900406
Stefan Roesec438ea12008-11-12 13:47:24 +0100407 addr = (ulong)simple_strtoul(argv[2], NULL, 16);
408
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;
413
414 s = strchr(cmd, '.');
415 if ((s != NULL) && (!strcmp(s, ".oob")))
416 oob = 1;
417
418 if (read) {
419 ret = onenand_block_read(ofs, len, &retlen,
420 (u8 *)addr, oob);
Kyungmin Parkbfd7f382008-08-19 08:42:53 +0900421 } else {
Stefan Roesec438ea12008-11-12 13:47:24 +0100422 ret = onenand_block_write(ofs, len, &retlen,
423 (u8 *)addr);
Kyungmin Parkbfd7f382008-08-19 08:42:53 +0900424 }
Kyungmin Parkbfd7f382008-08-19 08:42:53 +0900425
Stefan Roesec438ea12008-11-12 13:47:24 +0100426 printf(" %d bytes %s: %s\n", retlen,
427 read ? "read" : "written", ret ? "ERROR" : "OK");
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900428
Stefan Roesec438ea12008-11-12 13:47:24 +0100429 return ret == 0 ? 0 : 1;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900430 }
431
Stefan Roesec438ea12008-11-12 13:47:24 +0100432 if (strcmp(cmd, "markbad") == 0) {
Wolfgang Denk8360b662009-05-24 17:34:33 +0200433 argc -= 2;
434 argv += 2;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900435
Wolfgang Denk8360b662009-05-24 17:34:33 +0200436 if (argc <= 0)
437 goto usage;
438
439 while (argc > 0) {
440 addr = simple_strtoul(*argv, NULL, 16);
441
442 if (mtd->block_markbad(mtd, addr)) {
443 printf("block 0x%08lx NOT marked "
444 "as bad! ERROR %d\n",
445 addr, ret);
446 ret = 1;
447 } else {
448 printf("block 0x%08lx successfully "
449 "marked as bad\n",
450 addr);
451 }
452 --argc;
453 ++argv;
Stefan Roesec438ea12008-11-12 13:47:24 +0100454 }
Wolfgang Denk8360b662009-05-24 17:34:33 +0200455 return ret;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900456 }
457
Stefan Roesec438ea12008-11-12 13:47:24 +0100458 if (strncmp(cmd, "dump", 4) == 0) {
459 if (argc < 3)
460 goto usage;
Kyungmin Parkbfd7f382008-08-19 08:42:53 +0900461
Stefan Roesec438ea12008-11-12 13:47:24 +0100462 s = strchr(cmd, '.');
463 ofs = (int)simple_strtoul(argv[2], NULL, 16);
Kyungmin Parkbfd7f382008-08-19 08:42:53 +0900464
Stefan Roesec438ea12008-11-12 13:47:24 +0100465 if (s != NULL && strcmp(s, ".oob") == 0)
466 ret = onenand_dump(mtd, ofs, 1);
467 else
468 ret = onenand_dump(mtd, ofs, 0);
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900469
Stefan Roesec438ea12008-11-12 13:47:24 +0100470 return ret == 0 ? 1 : 0;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900471 }
472
473 break;
474 }
475
476 return 0;
Stefan Roesec438ea12008-11-12 13:47:24 +0100477
478usage:
Peter Tyser62c3ae72009-01-27 18:03:10 -0600479 cmd_usage(cmdtp);
Stefan Roesec438ea12008-11-12 13:47:24 +0100480 return 1;
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900481}
482
483U_BOOT_CMD(
Wolfgang Denk8360b662009-05-24 17:34:33 +0200484 onenand, CONFIG_SYS_MAXARGS, 1, do_onenand,
Peter Tyser2fb26042009-01-27 18:03:12 -0600485 "OneNAND sub-system",
Stefan Roesec438ea12008-11-12 13:47:24 +0100486 "info - show available OneNAND devices\n"
487 "onenand bad - show bad blocks\n"
488 "onenand read[.oob] addr off size\n"
489 "onenand write[.oob] addr off size\n"
490 " read/write 'size' bytes starting at offset 'off'\n"
491 " to/from memory address 'addr', skipping bad blocks.\n"
492 "onenand erase [force] [off size] - erase 'size' bytes from\n"
493 "onenand test [off size] - test 'size' bytes from\n"
494 " offset 'off' (entire device if not specified)\n"
495 "onenand dump[.oob] off - dump page\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200496 "onenand markbad off [...] - mark bad block(s) at offset (UNSAFE)"
Kyungmin Parkd7e8ce12007-09-10 17:15:14 +0900497);