blob: 7692ac7716d2bbcc472892cc9e649c02dd731aae [file] [log] [blame]
Kyungmin Park694a0b32008-11-19 11:47:05 +01001/*
2 * Unsorted Block Image commands
3 *
4 * Copyright (C) 2008 Samsung Electronics
5 * Kyungmin Park <kyungmin.park@samsung.com>
6 *
Stefan Roese2d579e52009-04-24 20:24:19 +02007 * Copyright 2008-2009 Stefan Roese <sr@denx.de>, DENX Software Engineering
Kyungmin Park694a0b32008-11-19 11:47:05 +01008 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14#include <common.h>
15#include <command.h>
16#include <exports.h>
17
18#include <nand.h>
19#include <onenand_uboot.h>
20#include <linux/mtd/mtd.h>
21#include <linux/mtd/partitions.h>
22#include <ubi_uboot.h>
23#include <asm/errno.h>
24#include <jffs2/load_kernel.h>
25
26#define DEV_TYPE_NONE 0
27#define DEV_TYPE_NAND 1
28#define DEV_TYPE_ONENAND 2
Piotr Ziecik25ea6522008-11-17 15:58:00 +010029#define DEV_TYPE_NOR 3
Kyungmin Park694a0b32008-11-19 11:47:05 +010030
31/* Private own data */
32static struct ubi_device *ubi;
Stefan Roesea5c40672008-11-24 08:31:16 +010033static char buffer[80];
Stefan Roese2ee951b2008-11-27 14:07:09 +010034static int ubi_initialized;
Kyungmin Park694a0b32008-11-19 11:47:05 +010035
36struct selected_dev {
Kyungmin Park694a0b32008-11-19 11:47:05 +010037 char part_name[80];
Stefan Roese2d579e52009-04-24 20:24:19 +020038 int selected;
Kyungmin Park694a0b32008-11-19 11:47:05 +010039 int nr;
40 struct mtd_info *mtd_info;
41};
42
43static struct selected_dev ubi_dev;
44
45static void ubi_dump_vol_info(const struct ubi_volume *vol)
46{
47 ubi_msg("volume information dump:");
48 ubi_msg("vol_id %d", vol->vol_id);
49 ubi_msg("reserved_pebs %d", vol->reserved_pebs);
50 ubi_msg("alignment %d", vol->alignment);
51 ubi_msg("data_pad %d", vol->data_pad);
52 ubi_msg("vol_type %d", vol->vol_type);
53 ubi_msg("name_len %d", vol->name_len);
54 ubi_msg("usable_leb_size %d", vol->usable_leb_size);
55 ubi_msg("used_ebs %d", vol->used_ebs);
56 ubi_msg("used_bytes %lld", vol->used_bytes);
57 ubi_msg("last_eb_bytes %d", vol->last_eb_bytes);
58 ubi_msg("corrupted %d", vol->corrupted);
59 ubi_msg("upd_marker %d", vol->upd_marker);
60
61 if (vol->name_len <= UBI_VOL_NAME_MAX &&
62 strnlen(vol->name, vol->name_len + 1) == vol->name_len) {
63 ubi_msg("name %s", vol->name);
64 } else {
65 ubi_msg("the 1st 5 characters of the name: %c%c%c%c%c",
66 vol->name[0], vol->name[1], vol->name[2],
67 vol->name[3], vol->name[4]);
68 }
69 printf("\n");
70}
71
72static void display_volume_info(struct ubi_device *ubi)
73{
74 int i;
75
76 for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
77 if (!ubi->volumes[i])
78 continue; /* Empty record */
79 ubi_dump_vol_info(ubi->volumes[i]);
80 }
81}
82
83static void display_ubi_info(struct ubi_device *ubi)
84{
85 ubi_msg("MTD device name: \"%s\"", ubi->mtd->name);
86 ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20);
87 ubi_msg("physical eraseblock size: %d bytes (%d KiB)",
88 ubi->peb_size, ubi->peb_size >> 10);
89 ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size);
90 ubi_msg("number of good PEBs: %d", ubi->good_peb_count);
91 ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count);
92 ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size);
93 ubi_msg("VID header offset: %d (aligned %d)",
94 ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
95 ubi_msg("data offset: %d", ubi->leb_start);
96 ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots);
97 ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD);
98 ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT);
99 ubi_msg("number of user volumes: %d",
100 ubi->vol_count - UBI_INT_VOL_COUNT);
101 ubi_msg("available PEBs: %d", ubi->avail_pebs);
102 ubi_msg("total number of reserved PEBs: %d", ubi->rsvd_pebs);
103 ubi_msg("number of PEBs reserved for bad PEB handling: %d",
104 ubi->beb_rsvd_pebs);
105 ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec);
106}
107
108static int ubi_info(int layout)
109{
110 if (layout)
111 display_volume_info(ubi);
112 else
113 display_ubi_info(ubi);
114
115 return 0;
116}
117
Kyungmin Park694a0b32008-11-19 11:47:05 +0100118static int verify_mkvol_req(const struct ubi_device *ubi,
119 const struct ubi_mkvol_req *req)
120{
121 int n, err = -EINVAL;
122
123 if (req->bytes < 0 || req->alignment < 0 || req->vol_type < 0 ||
124 req->name_len < 0)
125 goto bad;
126
127 if ((req->vol_id < 0 || req->vol_id >= ubi->vtbl_slots) &&
128 req->vol_id != UBI_VOL_NUM_AUTO)
129 goto bad;
130
131 if (req->alignment == 0)
132 goto bad;
133
134 if (req->bytes == 0)
135 goto bad;
136
137 if (req->vol_type != UBI_DYNAMIC_VOLUME &&
138 req->vol_type != UBI_STATIC_VOLUME)
139 goto bad;
140
141 if (req->alignment > ubi->leb_size)
142 goto bad;
143
144 n = req->alignment % ubi->min_io_size;
145 if (req->alignment != 1 && n)
146 goto bad;
147
148 if (req->name_len > UBI_VOL_NAME_MAX) {
149 err = -ENAMETOOLONG;
150 goto bad;
151 }
152
153 return 0;
154bad:
155 printf("bad volume creation request");
156 return err;
157}
158
159static int ubi_create_vol(char *volume, int size, int dynamic)
160{
161 struct ubi_mkvol_req req;
162 int err;
163
164 if (dynamic)
165 req.vol_type = UBI_DYNAMIC_VOLUME;
166 else
167 req.vol_type = UBI_STATIC_VOLUME;
168
169 req.vol_id = UBI_VOL_NUM_AUTO;
170 req.alignment = 1;
171 req.bytes = size;
172
173 strcpy(req.name, volume);
174 req.name_len = strlen(volume);
175 req.name[req.name_len] = '\0';
176 req.padding1 = 0;
177 /* It's duplicated at drivers/mtd/ubi/cdev.c */
178 err = verify_mkvol_req(ubi, &req);
179 if (err) {
180 printf("verify_mkvol_req failed %d\n", err);
181 return err;
182 }
183 printf("Creating %s volume %s of size %d\n",
184 dynamic ? "dynamic" : "static", volume, size);
185 /* Call real ubi create volume */
186 return ubi_create_volume(ubi, &req);
187}
188
189static int ubi_remove_vol(char *volume)
190{
191 int i, err, reserved_pebs;
192 int found = 0, vol_id = 0;
Peter Tyser3b653fd2010-04-04 22:40:50 -0500193 struct ubi_volume *vol = NULL;
Kyungmin Park694a0b32008-11-19 11:47:05 +0100194
195 for (i = 0; i < ubi->vtbl_slots; i++) {
196 vol = ubi->volumes[i];
197 if (vol && !strcmp(vol->name, volume)) {
198 printf("Volume %s found at valid %d\n", volume, i);
199 vol_id = i;
200 found = 1;
201 break;
202 }
203 }
204 if (!found) {
205 printf("%s volume not found\n", volume);
206 return -ENODEV;
207 }
208 printf("remove UBI volume %s (id %d)\n", vol->name, vol->vol_id);
209
210 if (ubi->ro_mode) {
211 printf("It's read-only mode\n");
212 err = -EROFS;
213 goto out_err;
214 }
215
216 err = ubi_change_vtbl_record(ubi, vol_id, NULL);
217 if (err) {
218 printf("Error changing Vol tabel record err=%x\n", err);
219 goto out_err;
220 }
221 reserved_pebs = vol->reserved_pebs;
222 for (i = 0; i < vol->reserved_pebs; i++) {
223 err = ubi_eba_unmap_leb(ubi, vol, i);
224 if (err)
225 goto out_err;
226 }
227
228 kfree(vol->eba_tbl);
229 ubi->volumes[vol_id]->eba_tbl = NULL;
230 ubi->volumes[vol_id] = NULL;
231
232 ubi->rsvd_pebs -= reserved_pebs;
233 ubi->avail_pebs += reserved_pebs;
234 i = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs;
235 if (i > 0) {
236 i = ubi->avail_pebs >= i ? i : ubi->avail_pebs;
237 ubi->avail_pebs -= i;
238 ubi->rsvd_pebs += i;
239 ubi->beb_rsvd_pebs += i;
240 if (i > 0)
241 ubi_msg("reserve more %d PEBs", i);
242 }
243 ubi->vol_count -= 1;
244
245 return 0;
246out_err:
247 ubi_err("cannot remove volume %d, error %d", vol_id, err);
248 return err;
249}
250
251static int ubi_volume_write(char *volume, void *buf, size_t size)
252{
253 int i = 0, err = -1;
254 int rsvd_bytes = 0;
255 int found = 0;
256 struct ubi_volume *vol;
257
258 for (i = 0; i < ubi->vtbl_slots; i++) {
259 vol = ubi->volumes[i];
260 if (vol && !strcmp(vol->name, volume)) {
261 printf("Volume \"%s\" found at volume id %d\n", volume, i);
262 found = 1;
263 break;
264 }
265 }
266 if (!found) {
267 printf("%s volume not found\n", volume);
268 return 1;
269 }
270 rsvd_bytes = vol->reserved_pebs * (ubi->leb_size - vol->data_pad);
271 if (size < 0 || size > rsvd_bytes) {
272 printf("rsvd_bytes=%d vol->reserved_pebs=%d ubi->leb_size=%d\n",
273 rsvd_bytes, vol->reserved_pebs, ubi->leb_size);
274 printf("vol->data_pad=%d\n", vol->data_pad);
275 printf("Size > volume size !!\n");
276 return 1;
277 }
278
279 err = ubi_start_update(ubi, vol, size);
280 if (err < 0) {
281 printf("Cannot start volume update\n");
282 return err;
283 }
284
285 err = ubi_more_update_data(ubi, vol, buf, size);
286 if (err < 0) {
287 printf("Couldnt or partially wrote data \n");
288 return err;
289 }
290
291 if (err) {
292 size = err;
293
294 err = ubi_check_volume(ubi, vol->vol_id);
295 if ( err < 0 )
296 return err;
297
298 if (err) {
299 ubi_warn("volume %d on UBI device %d is corrupted",
300 vol->vol_id, ubi->ubi_num);
301 vol->corrupted = 1;
302 }
303
304 vol->checked = 1;
305 ubi_gluebi_updated(vol);
306 }
307
308 return 0;
309}
310
311static int ubi_volume_read(char *volume, char *buf, size_t size)
312{
313 int err, lnum, off, len, tbuf_size, i = 0;
314 size_t count_save = size;
315 void *tbuf;
316 unsigned long long tmp;
317 struct ubi_volume *vol = NULL;
318 loff_t offp = 0;
319
320 for (i = 0; i < ubi->vtbl_slots; i++) {
321 vol = ubi->volumes[i];
322 if (vol && !strcmp(vol->name, volume)) {
323 printf("Volume %s found at volume id %d\n",
324 volume, vol->vol_id);
325 break;
326 }
327 }
328 if (i == ubi->vtbl_slots) {
329 printf("%s volume not found\n", volume);
Andreas Huber08503012009-05-19 11:06:30 +0200330 return -ENODEV;
Kyungmin Park694a0b32008-11-19 11:47:05 +0100331 }
332
333 printf("read %i bytes from volume %d to %x(buf address)\n",
334 (int) size, vol->vol_id, (unsigned)buf);
335
336 if (vol->updating) {
337 printf("updating");
338 return -EBUSY;
339 }
340 if (vol->upd_marker) {
341 printf("damaged volume, update marker is set");
342 return -EBADF;
343 }
344 if (offp == vol->used_bytes)
345 return 0;
346
347 if (size == 0) {
348 printf("Read [%lu] bytes\n", (unsigned long) vol->used_bytes);
349 size = vol->used_bytes;
350 }
351
352 if (vol->corrupted)
353 printf("read from corrupted volume %d", vol->vol_id);
354 if (offp + size > vol->used_bytes)
355 count_save = size = vol->used_bytes - offp;
356
357 tbuf_size = vol->usable_leb_size;
358 if (size < tbuf_size)
359 tbuf_size = ALIGN(size, ubi->min_io_size);
360 tbuf = malloc(tbuf_size);
361 if (!tbuf) {
362 printf("NO MEM\n");
363 return -ENOMEM;
364 }
365 len = size > tbuf_size ? tbuf_size : size;
366
367 tmp = offp;
368 off = do_div(tmp, vol->usable_leb_size);
369 lnum = tmp;
Kyungmin Park694a0b32008-11-19 11:47:05 +0100370 do {
371 if (off + len >= vol->usable_leb_size)
372 len = vol->usable_leb_size - off;
373
374 err = ubi_eba_read_leb(ubi, vol, lnum, tbuf, off, len, 0);
375 if (err) {
376 printf("read err %x\n", err);
377 break;
378 }
379 off += len;
380 if (off == vol->usable_leb_size) {
381 lnum += 1;
382 off -= vol->usable_leb_size;
383 }
384
385 size -= len;
386 offp += len;
387
Kyungmin Park694a0b32008-11-19 11:47:05 +0100388 memcpy(buf, tbuf, len);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100389
390 buf += len;
391 len = size > tbuf_size ? tbuf_size : size;
392 } while (size);
393
394 free(tbuf);
395 return err ? err : count_save - size;
396}
397
Simon Kagstrom25c8f402009-07-07 16:59:46 +0200398static int ubi_dev_scan(struct mtd_info *info, char *ubidev,
399 const char *vid_header_offset)
Kyungmin Park694a0b32008-11-19 11:47:05 +0100400{
401 struct mtd_device *dev;
402 struct part_info *part;
403 struct mtd_partition mtd_part;
Simon Kagstrom25c8f402009-07-07 16:59:46 +0200404 char ubi_mtd_param_buffer[80];
Kyungmin Park694a0b32008-11-19 11:47:05 +0100405 u8 pnum;
406 int err;
407
Kyungmin Park694a0b32008-11-19 11:47:05 +0100408 if (find_dev_and_part(ubidev, &dev, &pnum, &part) != 0)
409 return 1;
410
411 sprintf(buffer, "mtd=%d", pnum);
412 memset(&mtd_part, 0, sizeof(mtd_part));
413 mtd_part.name = buffer;
414 mtd_part.size = part->size;
415 mtd_part.offset = part->offset;
416 add_mtd_partitions(info, &mtd_part, 1);
417
Simon Kagstrom25c8f402009-07-07 16:59:46 +0200418 strcpy(ubi_mtd_param_buffer, buffer);
419 if (vid_header_offset)
420 sprintf(ubi_mtd_param_buffer, "mtd=%d,%s", pnum,
421 vid_header_offset);
422 err = ubi_mtd_param_parse(ubi_mtd_param_buffer, NULL);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100423 if (err) {
424 del_mtd_partitions(info);
425 return err;
426 }
427
428 err = ubi_init();
429 if (err) {
430 del_mtd_partitions(info);
431 return err;
432 }
433
Stefan Roese2ee951b2008-11-27 14:07:09 +0100434 ubi_initialized = 1;
435
Kyungmin Park694a0b32008-11-19 11:47:05 +0100436 return 0;
437}
438
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200439static int do_ubi(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
Kyungmin Park694a0b32008-11-19 11:47:05 +0100440{
441 size_t size = 0;
442 ulong addr = 0;
443 int err = 0;
444
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200445 if (argc < 2)
446 return cmd_usage(cmdtp);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100447
Andreas Huberc203ef52009-04-02 17:15:34 +0200448 if (mtdparts_init() != 0) {
449 printf("Error initializing mtdparts!\n");
450 return 1;
451 }
452
Kyungmin Park694a0b32008-11-19 11:47:05 +0100453 if (strcmp(argv[1], "part") == 0) {
Stefan Roese2d579e52009-04-24 20:24:19 +0200454 char mtd_dev[16];
455 struct mtd_device *dev;
456 struct part_info *part;
Simon Kagstrom25c8f402009-07-07 16:59:46 +0200457 const char *vid_header_offset = NULL;
Stefan Roese2d579e52009-04-24 20:24:19 +0200458 u8 pnum;
459
Kyungmin Park694a0b32008-11-19 11:47:05 +0100460 /* Print current partition */
461 if (argc == 2) {
Stefan Roese2d579e52009-04-24 20:24:19 +0200462 if (!ubi_dev.selected) {
Kyungmin Park694a0b32008-11-19 11:47:05 +0100463 printf("Error, no UBI device/partition selected!\n");
464 return 1;
465 }
466
Stefan Roese2d579e52009-04-24 20:24:19 +0200467 printf("Device %d: %s, partition %s\n",
Kyungmin Park694a0b32008-11-19 11:47:05 +0100468 ubi_dev.nr, ubi_dev.mtd_info->name, ubi_dev.part_name);
469 return 0;
470 }
471
Wolfgang Denk47e26b12010-07-17 01:06:04 +0200472 if (argc < 3)
473 return cmd_usage(cmdtp);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100474
475 /* todo: get dev number for NAND... */
476 ubi_dev.nr = 0;
477
478 /*
Stefan Roese2ee951b2008-11-27 14:07:09 +0100479 * Call ubi_exit() before re-initializing the UBI subsystem
480 */
481 if (ubi_initialized) {
482 ubi_exit();
483 del_mtd_partitions(ubi_dev.mtd_info);
484 }
485
486 /*
Stefan Roese2d579e52009-04-24 20:24:19 +0200487 * Search the mtd device number where this partition
488 * is located
Kyungmin Park694a0b32008-11-19 11:47:05 +0100489 */
Stefan Roese2d579e52009-04-24 20:24:19 +0200490 if (find_dev_and_part(argv[2], &dev, &pnum, &part)) {
491 printf("Partition %s not found!\n", argv[2]);
492 return 1;
Kyungmin Park694a0b32008-11-19 11:47:05 +0100493 }
Stefan Roese2d579e52009-04-24 20:24:19 +0200494 sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(dev->id->type), dev->id->num);
495 ubi_dev.mtd_info = get_mtd_device_nm(mtd_dev);
496 if (IS_ERR(ubi_dev.mtd_info)) {
497 printf("Partition %s not found on device %s!\n", argv[2], mtd_dev);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100498 return 1;
499 }
500
Stefan Roese2d579e52009-04-24 20:24:19 +0200501 ubi_dev.selected = 1;
502
Simon Kagstrom25c8f402009-07-07 16:59:46 +0200503 if (argc > 3)
504 vid_header_offset = argv[3];
Stefan Roese2d579e52009-04-24 20:24:19 +0200505 strcpy(ubi_dev.part_name, argv[2]);
Simon Kagstrom25c8f402009-07-07 16:59:46 +0200506 err = ubi_dev_scan(ubi_dev.mtd_info, ubi_dev.part_name,
507 vid_header_offset);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100508 if (err) {
509 printf("UBI init error %d\n", err);
Stefan Roese2d579e52009-04-24 20:24:19 +0200510 ubi_dev.selected = 0;
Kyungmin Park694a0b32008-11-19 11:47:05 +0100511 return err;
512 }
513
514 ubi = ubi_devices[0];
515
516 return 0;
517 }
518
Stefan Roese2d579e52009-04-24 20:24:19 +0200519 if ((strcmp(argv[1], "part") != 0) && (!ubi_dev.selected)) {
Kyungmin Park694a0b32008-11-19 11:47:05 +0100520 printf("Error, no UBI device/partition selected!\n");
521 return 1;
522 }
523
524 if (strcmp(argv[1], "info") == 0) {
525 int layout = 0;
526 if (argc > 2 && !strncmp(argv[2], "l", 1))
527 layout = 1;
528 return ubi_info(layout);
529 }
530
531 if (strncmp(argv[1], "create", 6) == 0) {
532 int dynamic = 1; /* default: dynamic volume */
533
534 /* Use maximum available size */
535 size = 0;
536
537 /* E.g., create volume size type */
538 if (argc == 5) {
539 if (strncmp(argv[4], "s", 1) == 0)
540 dynamic = 0;
541 else if (strncmp(argv[4], "d", 1) != 0) {
542 printf("Incorrect type\n");
543 return 1;
544 }
545 argc--;
546 }
547 /* E.g., create volume size */
548 if (argc == 4) {
Stefan Roese2d2e0572008-12-02 10:53:47 +0100549 size = simple_strtoul(argv[3], NULL, 16);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100550 argc--;
551 }
552 /* Use maximum available size */
553 if (!size)
554 size = ubi->avail_pebs * ubi->leb_size;
555 /* E.g., create volume */
556 if (argc == 3)
557 return ubi_create_vol(argv[2], size, dynamic);
558 }
559
560 if (strncmp(argv[1], "remove", 6) == 0) {
561 /* E.g., remove volume */
562 if (argc == 3)
563 return ubi_remove_vol(argv[2]);
564 }
565
566 if (strncmp(argv[1], "write", 5) == 0) {
567 if (argc < 5) {
568 printf("Please see usage\n");
569 return 1;
570 }
571
572 addr = simple_strtoul(argv[2], NULL, 16);
Stefan Roesea5c40672008-11-24 08:31:16 +0100573 size = simple_strtoul(argv[4], NULL, 16);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100574
575 return ubi_volume_write(argv[3], (void *)addr, size);
576 }
577
578 if (strncmp(argv[1], "read", 4) == 0) {
579 size = 0;
580
581 /* E.g., read volume size */
582 if (argc == 5) {
Stefan Roesea5c40672008-11-24 08:31:16 +0100583 size = simple_strtoul(argv[4], NULL, 16);
Kyungmin Park694a0b32008-11-19 11:47:05 +0100584 argc--;
585 }
586
587 /* E.g., read volume */
588 if (argc == 4) {
589 addr = simple_strtoul(argv[2], NULL, 16);
590 argc--;
591 }
592
593 if (argc == 3)
594 return ubi_volume_read(argv[3], (char *)addr, size);
595 }
596
597 printf("Please see usage\n");
598 return -1;
599}
600
Frans Meulenbroeks388a29d2010-07-31 15:01:53 +0200601U_BOOT_CMD(
602 ubi, 6, 1, do_ubi,
Peter Tyser2fb26042009-01-27 18:03:12 -0600603 "ubi commands",
Simon Kagstrom25c8f402009-07-07 16:59:46 +0200604 "part [part] [offset]\n"
605 " - Show or set current partition (with optional VID"
606 " header offset)\n"
Kyungmin Park694a0b32008-11-19 11:47:05 +0100607 "ubi info [l[ayout]]"
608 " - Display volume and ubi layout information\n"
609 "ubi create[vol] volume [size] [type]"
610 " - create volume name with size\n"
611 "ubi write[vol] address volume size"
612 " - Write volume from address with size\n"
613 "ubi read[vol] address volume [size]"
614 " - Read volume to address with size\n"
615 "ubi remove[vol] volume"
616 " - Remove volume\n"
617 "[Legends]\n"
Andrzej Wolskif6ca3b72009-07-17 22:26:54 +0200618 " volume: character name\n"
619 " size: specified in bytes\n"
Wolfgang Denka89c33d2009-05-24 17:06:54 +0200620 " type: s[tatic] or d[ynamic] (default=dynamic)"
Kyungmin Park694a0b32008-11-19 11:47:05 +0100621);