aboutsummaryrefslogtreecommitdiff
path: root/src/flash/nand/tcl.c
blob: cbdeda5bcea90ec070ef1edb0fdd149f25e91146 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
/***************************************************************************
 *   Copyright (C) 2007 by Dominic Rath <Dominic.Rath@gmx.de>              *
 *   Copyright (C) 2002 Thomas Gleixner <tglx@linutronix.de>               *
 *   Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net>             *
 *                                                                         *
 *   Partially based on drivers/mtd/nand_ids.c from Linux.                 *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 ***************************************************************************/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "core.h"
#include "imp.h"
#include "fileio.h"
#include <target/target.h>

/* to be removed */
extern struct nand_device *nand_devices;

COMMAND_HANDLER(handle_nand_list_command)
{
	struct nand_device *p;
	int i;

	if (!nand_devices) {
		command_print(CMD_CTX, "no NAND flash devices configured");
		return ERROR_OK;
	}

	for (p = nand_devices, i = 0; p; p = p->next, i++) {
		if (p->device)
			command_print(CMD_CTX, "#%i: %s (%s) "
				"pagesize: %i, buswidth: %i,\n\t"
				"blocksize: %i, blocks: %i",
				i, p->device->name, p->manufacturer->name,
				p->page_size, p->bus_width,
				p->erase_size, p->num_blocks);
		else
			command_print(CMD_CTX, "#%i: not probed", i);
	}

	return ERROR_OK;
}

COMMAND_HANDLER(handle_nand_info_command)
{
	int i = 0;
	int j = 0;
	int first = -1;
	int last = -1;

	switch (CMD_ARGC) {
		default:
			return ERROR_COMMAND_SYNTAX_ERROR;
		case 1:
			first = 0;
			last = INT32_MAX;
			break;
		case 2:
			COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], i);
			first = last = i;
			i = 0;
			break;
		case 3:
			COMMAND_PARSE_NUMBER(int, CMD_ARGV[1], first);
			COMMAND_PARSE_NUMBER(int, CMD_ARGV[2], last);
			break;
	}

	struct nand_device *p;
	int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
	if (ERROR_OK != retval)
		return retval;

	if (NULL == p->device) {
		command_print(CMD_CTX, "#%s: not probed", CMD_ARGV[0]);
		return ERROR_OK;
	}

	if (first >= p->num_blocks)
		first = p->num_blocks - 1;

	if (last >= p->num_blocks)
		last = p->num_blocks - 1;

	command_print(CMD_CTX,
		"#%i: %s (%s) pagesize: %i, buswidth: %i, erasesize: %i",
		i++,
		p->device->name,
		p->manufacturer->name,
		p->page_size,
		p->bus_width,
		p->erase_size);

	for (j = first; j <= last; j++) {
		char *erase_state, *bad_state;

		if (p->blocks[j].is_erased == 0)
			erase_state = "not erased";
		else if (p->blocks[j].is_erased == 1)
			erase_state = "erased";
		else
			erase_state = "erase state unknown";

		if (p->blocks[j].is_bad == 0)
			bad_state = "";
		else if (p->blocks[j].is_bad == 1)
			bad_state = " (marked bad)";
		else
			bad_state = " (block condition unknown)";

		command_print(CMD_CTX,
			"\t#%i: 0x%8.8" PRIx32 " (%" PRId32 "kB) %s%s",
			j,
			p->blocks[j].offset,
			p->blocks[j].size / 1024,
			erase_state,
			bad_state);
	}

	return ERROR_OK;
}

COMMAND_HANDLER(handle_nand_probe_command)
{
	if (CMD_ARGC != 1)
		return ERROR_COMMAND_SYNTAX_ERROR;

	struct nand_device *p;
	int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
	if (ERROR_OK != retval)
		return retval;

	retval = nand_probe(p);
	if (retval == ERROR_OK) {
		command_print(CMD_CTX, "NAND flash device '%s (%s)' found",
			p->device->name, p->manufacturer->name);
	}

	return retval;
}

COMMAND_HANDLER(handle_nand_erase_command)
{
	if (CMD_ARGC != 1 && CMD_ARGC != 3)
		return ERROR_COMMAND_SYNTAX_ERROR;

	struct nand_device *p;
	int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
	if (ERROR_OK != retval)
		return retval;

	unsigned long offset;
	unsigned long length;

	/* erase specified part of the chip; or else everything */
	if (CMD_ARGC == 3) {
		unsigned long size = p->erase_size * p->num_blocks;

		COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[1], offset);
		if ((offset % p->erase_size) != 0 || offset >= size)
			return ERROR_COMMAND_SYNTAX_ERROR;

		COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[2], length);
		if ((length == 0) || (length % p->erase_size) != 0
		    || (length + offset) > size)
			return ERROR_COMMAND_SYNTAX_ERROR;

		offset /= p->erase_size;
		length /= p->erase_size;
	} else {
		offset = 0;
		length = p->num_blocks;
	}

	retval = nand_erase(p, offset, offset + length - 1);
	if (retval == ERROR_OK) {
		command_print(CMD_CTX, "erased blocks %lu to %lu "
			"on NAND flash device #%s '%s'",
			offset, offset + length - 1,
			CMD_ARGV[0], p->device->name);
	}

	return retval;
}

COMMAND_HANDLER(handle_nand_check_bad_blocks_command)
{
	int first = -1;
	int last = -1;

	if ((CMD_ARGC < 1) || (CMD_ARGC > 3) || (CMD_ARGC == 2))
		return ERROR_COMMAND_SYNTAX_ERROR;

	struct nand_device *p;
	int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
	if (ERROR_OK != retval)
		return retval;

	if (CMD_ARGC == 3) {
		unsigned long offset;
		unsigned long length;

		COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[1], offset);
		if (offset % p->erase_size)
			return ERROR_COMMAND_SYNTAX_ERROR;
		offset /= p->erase_size;

		COMMAND_PARSE_NUMBER(ulong, CMD_ARGV[2], length);
		if (length % p->erase_size)
			return ERROR_COMMAND_SYNTAX_ERROR;

		length -= 1;
		length /= p->erase_size;

		first = offset;
		last = offset + length;
	}

	retval = nand_build_bbt(p, first, last);
	if (retval == ERROR_OK) {
		command_print(CMD_CTX, "checked NAND flash device for bad blocks, "
			"use \"nand info\" command to list blocks");
	}

	return retval;
}

COMMAND_HANDLER(handle_nand_write_command)
{
	struct nand_device *nand = NULL;
	struct nand_fileio_state s;
	int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
			&s, &nand, FILEIO_READ, false, true);
	if (ERROR_OK != retval)
		return retval;

	uint32_t total_bytes = s.size;
	while (s.size > 0) {
		int bytes_read = nand_fileio_read(nand, &s);
		if (bytes_read <= 0) {
			command_print(CMD_CTX, "error while reading file");
			return nand_fileio_cleanup(&s);
		}
		s.size -= bytes_read;

		retval = nand_write_page(nand, s.address / nand->page_size,
				s.page, s.page_size, s.oob, s.oob_size);
		if (ERROR_OK != retval) {
			command_print(CMD_CTX, "failed writing file %s "
				"to NAND flash %s at offset 0x%8.8" PRIx32,
				CMD_ARGV[1], CMD_ARGV[0], s.address);
			return nand_fileio_cleanup(&s);
		}
		s.address += s.page_size;
	}

	if (nand_fileio_finish(&s) == ERROR_OK) {
		command_print(CMD_CTX, "wrote file %s to NAND flash %s up to "
			"offset 0x%8.8" PRIx32 " in %fs (%0.3f KiB/s)",
			CMD_ARGV[1], CMD_ARGV[0], s.address, duration_elapsed(&s.bench),
			duration_kbps(&s.bench, total_bytes));
	}
	return ERROR_OK;
}

COMMAND_HANDLER(handle_nand_verify_command)
{
	struct nand_device *nand = NULL;
	struct nand_fileio_state file;
	int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
			&file, &nand, FILEIO_READ, false, true);
	if (ERROR_OK != retval)
		return retval;

	struct nand_fileio_state dev;
	nand_fileio_init(&dev);
	dev.address = file.address;
	dev.size = file.size;
	dev.oob_format = file.oob_format;
	retval = nand_fileio_start(CMD_CTX, nand, NULL, FILEIO_NONE, &dev);
	if (ERROR_OK != retval)
		return retval;

	while (file.size > 0) {
		retval = nand_read_page(nand, dev.address / dev.page_size,
				dev.page, dev.page_size, dev.oob, dev.oob_size);
		if (ERROR_OK != retval) {
			command_print(CMD_CTX, "reading NAND flash page failed");
			nand_fileio_cleanup(&dev);
			nand_fileio_cleanup(&file);
			return retval;
		}

		int bytes_read = nand_fileio_read(nand, &file);
		if (bytes_read <= 0) {
			command_print(CMD_CTX, "error while reading file");
			nand_fileio_cleanup(&dev);
			nand_fileio_cleanup(&file);
			return ERROR_FAIL;
		}

		if ((dev.page && memcmp(dev.page, file.page, dev.page_size)) ||
				(dev.oob && memcmp(dev.oob, file.oob, dev.oob_size))) {
			command_print(CMD_CTX, "NAND flash contents differ "
				"at 0x%8.8" PRIx32, dev.address);
			nand_fileio_cleanup(&dev);
			nand_fileio_cleanup(&file);
			return ERROR_FAIL;
		}

		file.size -= bytes_read;
		dev.address += nand->page_size;
	}

	if (nand_fileio_finish(&file) == ERROR_OK) {
		command_print(CMD_CTX, "verified file %s in NAND flash %s "
			"up to offset 0x%8.8" PRIx32 " in %fs (%0.3f KiB/s)",
			CMD_ARGV[1], CMD_ARGV[0], dev.address, duration_elapsed(&file.bench),
			duration_kbps(&file.bench, dev.size));
	}

	return nand_fileio_cleanup(&dev);
}

COMMAND_HANDLER(handle_nand_dump_command)
{
	size_t filesize;
	struct nand_device *nand = NULL;
	struct nand_fileio_state s;
	int retval = CALL_COMMAND_HANDLER(nand_fileio_parse_args,
			&s, &nand, FILEIO_WRITE, true, false);
	if (ERROR_OK != retval)
		return retval;

	while (s.size > 0) {
		size_t size_written;
		retval = nand_read_page(nand, s.address / nand->page_size,
				s.page, s.page_size, s.oob, s.oob_size);
		if (ERROR_OK != retval) {
			command_print(CMD_CTX, "reading NAND flash page failed");
			nand_fileio_cleanup(&s);
			return retval;
		}

		if (NULL != s.page)
			fileio_write(s.fileio, s.page_size, s.page, &size_written);

		if (NULL != s.oob)
			fileio_write(s.fileio, s.oob_size, s.oob, &size_written);

		s.size -= nand->page_size;
		s.address += nand->page_size;
	}

	retval = fileio_size(s.fileio, &filesize);
	if (retval != ERROR_OK)
		return retval;

	if (nand_fileio_finish(&s) == ERROR_OK) {
		command_print(CMD_CTX, "dumped %zu bytes in %fs (%0.3f KiB/s)",
			filesize, duration_elapsed(&s.bench),
			duration_kbps(&s.bench, filesize));
	}
	return ERROR_OK;
}

COMMAND_HANDLER(handle_nand_raw_access_command)
{
	if ((CMD_ARGC < 1) || (CMD_ARGC > 2))
		return ERROR_COMMAND_SYNTAX_ERROR;

	struct nand_device *p;
	int retval = CALL_COMMAND_HANDLER(nand_command_get_device, 0, &p);
	if (ERROR_OK != retval)
		return retval;

	if (NULL == p->device) {
		command_print(CMD_CTX, "#%s: not probed", CMD_ARGV[0]);
		return ERROR_OK;
	}

	if (CMD_ARGC == 2)
		COMMAND_PARSE_ENABLE(CMD_ARGV[1], p->use_raw);

	const char *msg = p->use_raw ? "enabled" : "disabled";
	command_print(CMD_CTX, "raw access is %s", msg);

	return ERROR_OK;
}

static const struct command_registration nand_exec_command_handlers[] = {
	{
		.name = "list",
		.handler = handle_nand_list_command,
		.mode = COMMAND_EXEC,
		.help = "list configured NAND flash devices",
	},
	{
		.name = "info",
		.handler = handle_nand_info_command,
		.mode = COMMAND_EXEC,
		.usage = "[banknum | first_bank_num last_bank_num]",
		.help = "print info about one or more NAND flash devices",
	},
	{
		.name = "probe",
		.handler = handle_nand_probe_command,
		.mode = COMMAND_EXEC,
		.usage = "bank_id",
		.help = "identify NAND flash device",
	},
	{
		.name = "check_bad_blocks",
		.handler = handle_nand_check_bad_blocks_command,
		.mode = COMMAND_EXEC,
		.usage = "bank_id [offset length]",
		.help = "check all or part of NAND flash device for bad blocks",
	},
	{
		.name = "erase",
		.handler = handle_nand_erase_command,
		.mode = COMMAND_EXEC,
		.usage = "bank_id [offset length]",
		.help = "erase all or subset of blocks on NAND flash device",
	},
	{
		.name = "dump",
		.handler = handle_nand_dump_command,
		.mode = COMMAND_EXEC,
		.usage = "bank_id filename offset length "
			"['oob_raw'|'oob_only']",
		.help = "dump from NAND flash device",
	},
	{
		.name = "verify",
		.handler = handle_nand_verify_command,
		.mode = COMMAND_EXEC,
		.usage = "bank_id filename offset "
			"['oob_raw'|'oob_only'|'oob_softecc'|'oob_softecc_kw']",
		.help = "verify NAND flash device",
	},
	{
		.name = "write",
		.handler = handle_nand_write_command,
		.mode = COMMAND_EXEC,
		.usage = "bank_id filename offset "
			"['oob_raw'|'oob_only'|'oob_softecc'|'oob_softecc_kw']",
		.help = "write to NAND flash device",
	},
	{
		.name = "raw_access",
		.handler = handle_nand_raw_access_command,
		.mode = COMMAND_EXEC,
		.usage = "bank_id ['enable'|'disable']",
		.help = "raw access to NAND flash device",
	},
	COMMAND_REGISTRATION_DONE
};

static int nand_init(struct command_context *cmd_ctx)
{
	if (!nand_devices)
		return ERROR_OK;
	struct command *parent = command_find_in_context(cmd_ctx, "nand");
	return register_commands(cmd_ctx, parent, nand_exec_command_handlers);
}

COMMAND_HANDLER(handle_nand_init_command)
{
	if (CMD_ARGC != 0)
		return ERROR_COMMAND_SYNTAX_ERROR;

	static bool nand_initialized;
	if (nand_initialized) {
		LOG_INFO("'nand init' has already been called");
		return ERROR_OK;
	}
	nand_initialized = true;

	LOG_DEBUG("Initializing NAND devices...");
	return nand_init(CMD_CTX);
}

static int nand_list_walker(struct nand_flash_controller *c, void *x)
{
	struct command_context *cmd_ctx = x;
	command_print(cmd_ctx, "  %s", c->name);
	return ERROR_OK;
}

COMMAND_HANDLER(handle_nand_list_drivers)
{
	command_print(CMD_CTX, "Available NAND flash controller drivers:");
	return nand_driver_walk(&nand_list_walker, CMD_CTX);
}

static COMMAND_HELPER(create_nand_device, const char *bank_name,
	struct nand_flash_controller *controller)
{
	struct nand_device *c;
	struct target *target;
	int retval;

	if (CMD_ARGC < 2)
		return ERROR_COMMAND_SYNTAX_ERROR;
	target = get_target(CMD_ARGV[1]);
	if (!target) {
		LOG_ERROR("invalid target %s", CMD_ARGV[1]);
		return ERROR_COMMAND_ARGUMENT_INVALID;
	}

	if (NULL != controller->commands) {
		retval = register_commands(CMD_CTX, NULL,
				controller->commands);
		if (ERROR_OK != retval)
			return retval;
	}
	c = malloc(sizeof(struct nand_device));
	if (c == NULL) {
		LOG_ERROR("End of memory");
		return ERROR_FAIL;
	}

	c->name = strdup(bank_name);
	c->target = target;
	c->controller = controller;
	c->controller_priv = NULL;
	c->manufacturer = NULL;
	c->device = NULL;
	c->bus_width = 0;
	c->address_cycles = 0;
	c->page_size = 0;
	c->use_raw = false;
	c->next = NULL;

	retval = CALL_COMMAND_HANDLER(controller->nand_device_command, c);
	if (ERROR_OK != retval) {
		LOG_ERROR("'%s' driver rejected nand flash. Usage: %s",
			controller->name,
			controller->usage);
		free(c);
		return retval;
	}

	if (controller->usage == NULL)
		LOG_DEBUG("'%s' driver usage field missing", controller->name);

	nand_device_add(c);

	return ERROR_OK;
}

COMMAND_HANDLER(handle_nand_device_command)
{
	if (CMD_ARGC < 2)
		return ERROR_COMMAND_SYNTAX_ERROR;

	/* save name and increment (for compatibility) with drivers */
	const char *bank_name = *CMD_ARGV++;
	CMD_ARGC--;

	const char *driver_name = CMD_ARGV[0];
	struct nand_flash_controller *controller;
	controller = nand_driver_find_by_name(CMD_ARGV[0]);
	if (NULL == controller) {
		LOG_ERROR("No valid NAND flash driver found (%s)", driver_name);
		return CALL_COMMAND_HANDLER(handle_nand_list_drivers);
	}
	return CALL_COMMAND_HANDLER(create_nand_device, bank_name, controller);
}

static const struct command_registration nand_config_command_handlers[] = {
	{
		.name = "device",
		.handler = &handle_nand_device_command,
		.mode = COMMAND_CONFIG,
		.help = "defines a new NAND bank",
		.usage = "bank_id driver target [driver_options ...]",
	},
	{
		.name = "drivers",
		.handler = &handle_nand_list_drivers,
		.mode = COMMAND_ANY,
		.help = "lists available NAND drivers",
		.usage = ""
	},
	{
		.name = "init",
		.mode = COMMAND_CONFIG,
		.handler = &handle_nand_init_command,
		.help = "initialize NAND devices",
		.usage = ""
	},
	COMMAND_REGISTRATION_DONE
};

static const struct command_registration nand_command_handlers[] = {
	{
		.name = "nand",
		.mode = COMMAND_ANY,
		.help = "NAND flash command group",
		.usage = "",
		.chain = nand_config_command_handlers,
	},
	COMMAND_REGISTRATION_DONE
};

int nand_register_commands(struct command_context *cmd_ctx)
{
	return register_commands(cmd_ctx, NULL, nand_command_handlers);
}