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14#include <common.h>
15#include <command.h>
16#include <exports.h>
17#include <memalign.h>
18#include <nand.h>
19#include <onenand_uboot.h>
20#include <linux/mtd/mtd.h>
21#include <linux/mtd/partitions.h>
22#include <linux/err.h>
23#include <ubi_uboot.h>
24#include <linux/errno.h>
25#include <jffs2/load_kernel.h>
26
27#undef ubi_msg
28#define ubi_msg(fmt, ...) printf("UBI: " fmt "\n", ##__VA_ARGS__)
29
30#define DEV_TYPE_NONE 0
31#define DEV_TYPE_NAND 1
32#define DEV_TYPE_ONENAND 2
33#define DEV_TYPE_NOR 3
34
35
36static struct ubi_device *ubi;
37static char buffer[80];
38static int ubi_initialized;
39
40struct selected_dev {
41 char part_name[80];
42 int selected;
43 int nr;
44 struct mtd_info *mtd_info;
45};
46
47static struct selected_dev ubi_dev;
48
49#ifdef CONFIG_CMD_UBIFS
50int ubifs_is_mounted(void);
51void cmd_ubifs_umount(void);
52#endif
53
54static void display_volume_info(struct ubi_device *ubi)
55{
56 int i;
57
58 for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
59 if (!ubi->volumes[i])
60 continue;
61 ubi_dump_vol_info(ubi->volumes[i]);
62 }
63}
64
65static void display_ubi_info(struct ubi_device *ubi)
66{
67 ubi_msg("MTD device name: \"%s\"", ubi->mtd->name);
68 ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20);
69 ubi_msg("physical eraseblock size: %d bytes (%d KiB)",
70 ubi->peb_size, ubi->peb_size >> 10);
71 ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size);
72 ubi_msg("number of good PEBs: %d", ubi->good_peb_count);
73 ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count);
74 ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size);
75 ubi_msg("VID header offset: %d (aligned %d)",
76 ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
77 ubi_msg("data offset: %d", ubi->leb_start);
78 ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots);
79 ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD);
80 ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT);
81 ubi_msg("number of user volumes: %d",
82 ubi->vol_count - UBI_INT_VOL_COUNT);
83 ubi_msg("available PEBs: %d", ubi->avail_pebs);
84 ubi_msg("total number of reserved PEBs: %d", ubi->rsvd_pebs);
85 ubi_msg("number of PEBs reserved for bad PEB handling: %d",
86 ubi->beb_rsvd_pebs);
87 ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec);
88}
89
90static int ubi_info(int layout)
91{
92 if (layout)
93 display_volume_info(ubi);
94 else
95 display_ubi_info(ubi);
96
97 return 0;
98}
99
100static int ubi_check_volumename(const struct ubi_volume *vol, char *name)
101{
102 return strcmp(vol->name, name);
103}
104
105static int ubi_check(char *name)
106{
107 int i;
108
109 for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
110 if (!ubi->volumes[i])
111 continue;
112
113 if (!ubi_check_volumename(ubi->volumes[i], name))
114 return 0;
115 }
116
117 return 1;
118}
119
120
121static int verify_mkvol_req(const struct ubi_device *ubi,
122 const struct ubi_mkvol_req *req)
123{
124 int n, err = EINVAL;
125
126 if (req->bytes < 0 || req->alignment < 0 || req->vol_type < 0 ||
127 req->name_len < 0)
128 goto bad;
129
130 if ((req->vol_id < 0 || req->vol_id >= ubi->vtbl_slots) &&
131 req->vol_id != UBI_VOL_NUM_AUTO)
132 goto bad;
133
134 if (req->alignment == 0)
135 goto bad;
136
137 if (req->bytes == 0) {
138 printf("No space left in UBI device!\n");
139 err = ENOMEM;
140 goto bad;
141 }
142
143 if (req->vol_type != UBI_DYNAMIC_VOLUME &&
144 req->vol_type != UBI_STATIC_VOLUME)
145 goto bad;
146
147 if (req->alignment > ubi->leb_size)
148 goto bad;
149
150 n = req->alignment % ubi->min_io_size;
151 if (req->alignment != 1 && n)
152 goto bad;
153
154 if (req->name_len > UBI_VOL_NAME_MAX) {
155 printf("Name too long!\n");
156 err = ENAMETOOLONG;
157 goto bad;
158 }
159
160 return 0;
161bad:
162 return err;
163}
164
165static int ubi_create_vol(char *volume, int64_t size, int dynamic, int vol_id)
166{
167 struct ubi_mkvol_req req;
168 int err;
169
170 if (dynamic)
171 req.vol_type = UBI_DYNAMIC_VOLUME;
172 else
173 req.vol_type = UBI_STATIC_VOLUME;
174
175 req.vol_id = vol_id;
176 req.alignment = 1;
177 req.bytes = size;
178
179 strcpy(req.name, volume);
180 req.name_len = strlen(volume);
181 req.name[req.name_len] = '\0';
182 req.padding1 = 0;
183
184 err = verify_mkvol_req(ubi, &req);
185 if (err) {
186 printf("verify_mkvol_req failed %d\n", err);
187 return err;
188 }
189 printf("Creating %s volume %s of size %lld\n",
190 dynamic ? "dynamic" : "static", volume, size);
191
192 return ubi_create_volume(ubi, &req);
193}
194
195static struct ubi_volume *ubi_find_volume(char *volume)
196{
197 struct ubi_volume *vol = NULL;
198 int i;
199
200 for (i = 0; i < ubi->vtbl_slots; i++) {
201 vol = ubi->volumes[i];
202 if (vol && !strcmp(vol->name, volume))
203 return vol;
204 }
205
206 printf("Volume %s not found!\n", volume);
207 return NULL;
208}
209
210static int ubi_remove_vol(char *volume)
211{
212 int err, reserved_pebs, i;
213 struct ubi_volume *vol;
214
215 vol = ubi_find_volume(volume);
216 if (vol == NULL)
217 return ENODEV;
218
219 printf("Remove UBI volume %s (id %d)\n", vol->name, vol->vol_id);
220
221 if (ubi->ro_mode) {
222 printf("It's read-only mode\n");
223 err = EROFS;
224 goto out_err;
225 }
226
227 err = ubi_change_vtbl_record(ubi, vol->vol_id, NULL);
228 if (err) {
229 printf("Error changing Vol tabel record err=%x\n", err);
230 goto out_err;
231 }
232 reserved_pebs = vol->reserved_pebs;
233 for (i = 0; i < vol->reserved_pebs; i++) {
234 err = ubi_eba_unmap_leb(ubi, vol, i);
235 if (err)
236 goto out_err;
237 }
238
239 kfree(vol->eba_tbl);
240 ubi->volumes[vol->vol_id]->eba_tbl = NULL;
241 ubi->volumes[vol->vol_id] = NULL;
242
243 ubi->rsvd_pebs -= reserved_pebs;
244 ubi->avail_pebs += reserved_pebs;
245 i = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs;
246 if (i > 0) {
247 i = ubi->avail_pebs >= i ? i : ubi->avail_pebs;
248 ubi->avail_pebs -= i;
249 ubi->rsvd_pebs += i;
250 ubi->beb_rsvd_pebs += i;
251 if (i > 0)
252 ubi_msg("reserve more %d PEBs", i);
253 }
254 ubi->vol_count -= 1;
255
256 return 0;
257out_err:
258 ubi_err(ubi, "cannot remove volume %s, error %d", volume, err);
259 if (err < 0)
260 err = -err;
261 return err;
262}
263
264static int ubi_volume_continue_write(char *volume, void *buf, size_t size)
265{
266 int err = 1;
267 struct ubi_volume *vol;
268
269 vol = ubi_find_volume(volume);
270 if (vol == NULL)
271 return ENODEV;
272
273 err = ubi_more_update_data(ubi, vol, buf, size);
274 if (err < 0) {
275 printf("Couldnt or partially wrote data\n");
276 return -err;
277 }
278
279 if (err) {
280 size = err;
281
282 err = ubi_check_volume(ubi, vol->vol_id);
283 if (err < 0)
284 return -err;
285
286 if (err) {
287 ubi_warn(ubi, "volume %d on UBI device %d is corrupt",
288 vol->vol_id, ubi->ubi_num);
289 vol->corrupted = 1;
290 }
291
292 vol->checked = 1;
293 ubi_gluebi_updated(vol);
294 }
295
296 return 0;
297}
298
299int ubi_volume_begin_write(char *volume, void *buf, size_t size,
300 size_t full_size)
301{
302 int err = 1;
303 int rsvd_bytes = 0;
304 struct ubi_volume *vol;
305
306 vol = ubi_find_volume(volume);
307 if (vol == NULL)
308 return ENODEV;
309
310 rsvd_bytes = vol->reserved_pebs * (ubi->leb_size - vol->data_pad);
311 if (size < 0 || size > rsvd_bytes) {
312 printf("size > volume size! Aborting!\n");
313 return EINVAL;
314 }
315
316 err = ubi_start_update(ubi, vol, full_size);
317 if (err < 0) {
318 printf("Cannot start volume update\n");
319 return -err;
320 }
321
322 return ubi_volume_continue_write(volume, buf, size);
323}
324
325int ubi_volume_write(char *volume, void *buf, size_t size)
326{
327 return ubi_volume_begin_write(volume, buf, size, size);
328}
329
330int ubi_volume_read(char *volume, char *buf, size_t size)
331{
332 int err, lnum, off, len, tbuf_size;
333 void *tbuf;
334 unsigned long long tmp;
335 struct ubi_volume *vol;
336 loff_t offp = 0;
337
338 vol = ubi_find_volume(volume);
339 if (vol == NULL)
340 return ENODEV;
341
342 if (vol->updating) {
343 printf("updating");
344 return EBUSY;
345 }
346 if (vol->upd_marker) {
347 printf("damaged volume, update marker is set");
348 return EBADF;
349 }
350 if (offp == vol->used_bytes)
351 return 0;
352
353 if (size == 0) {
354 printf("No size specified -> Using max size (%lld)\n", vol->used_bytes);
355 size = vol->used_bytes;
356 }
357
358 if (vol->corrupted)
359 printf("read from corrupted volume %d", vol->vol_id);
360 if (offp + size > vol->used_bytes)
361 size = vol->used_bytes - offp;
362
363 tbuf_size = vol->usable_leb_size;
364 if (size < tbuf_size)
365 tbuf_size = ALIGN(size, ubi->min_io_size);
366 tbuf = malloc_cache_aligned(tbuf_size);
367 if (!tbuf) {
368 printf("NO MEM\n");
369 return ENOMEM;
370 }
371 len = size > tbuf_size ? tbuf_size : size;
372
373 tmp = offp;
374 off = do_div(tmp, vol->usable_leb_size);
375 lnum = tmp;
376 do {
377 if (off + len >= vol->usable_leb_size)
378 len = vol->usable_leb_size - off;
379
380 err = ubi_eba_read_leb(ubi, vol, lnum, tbuf, off, len, 0);
381 if (err) {
382 printf("read err %x\n", err);
383 err = -err;
384 break;
385 }
386 off += len;
387 if (off == vol->usable_leb_size) {
388 lnum += 1;
389 off -= vol->usable_leb_size;
390 }
391
392 size -= len;
393 offp += len;
394
395 memcpy(buf, tbuf, len);
396
397 buf += len;
398 len = size > tbuf_size ? tbuf_size : size;
399 } while (size);
400
401 free(tbuf);
402 return err;
403}
404
405static int ubi_dev_scan(struct mtd_info *info, char *ubidev,
406 const char *vid_header_offset)
407{
408 struct mtd_device *dev;
409 struct part_info *part;
410 struct mtd_partition mtd_part;
411 char ubi_mtd_param_buffer[80];
412 u8 pnum;
413 int err;
414
415 if (find_dev_and_part(ubidev, &dev, &pnum, &part) != 0)
416 return 1;
417
418 sprintf(buffer, "mtd=%d", pnum);
419 memset(&mtd_part, 0, sizeof(mtd_part));
420 mtd_part.name = buffer;
421 mtd_part.size = part->size;
422 mtd_part.offset = part->offset;
423 add_mtd_partitions(info, &mtd_part, 1);
424
425 strcpy(ubi_mtd_param_buffer, buffer);
426 if (vid_header_offset)
427 sprintf(ubi_mtd_param_buffer, "mtd=%d,%s", pnum,
428 vid_header_offset);
429 err = ubi_mtd_param_parse(ubi_mtd_param_buffer, NULL);
430 if (err) {
431 del_mtd_partitions(info);
432 return -err;
433 }
434
435 err = ubi_init();
436 if (err) {
437 del_mtd_partitions(info);
438 return -err;
439 }
440
441 ubi_initialized = 1;
442
443 return 0;
444}
445
446int ubi_detach(void)
447{
448 if (mtdparts_init() != 0) {
449 printf("Error initializing mtdparts!\n");
450 return 1;
451 }
452
453#ifdef CONFIG_CMD_UBIFS
454
455
456
457
458
459 if (ubifs_is_mounted())
460 cmd_ubifs_umount();
461#endif
462
463
464
465
466 if (ubi_initialized) {
467 ubi_exit();
468 del_mtd_partitions(ubi_dev.mtd_info);
469 ubi_initialized = 0;
470 }
471
472 ubi_dev.selected = 0;
473 return 0;
474}
475
476int ubi_part(char *part_name, const char *vid_header_offset)
477{
478 int err = 0;
479 char mtd_dev[16];
480 struct mtd_device *dev;
481 struct part_info *part;
482 u8 pnum;
483
484 ubi_detach();
485
486
487
488
489 if (find_dev_and_part(part_name, &dev, &pnum, &part)) {
490 printf("Partition %s not found!\n", part_name);
491 return 1;
492 }
493 sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(dev->id->type), dev->id->num);
494 ubi_dev.mtd_info = get_mtd_device_nm(mtd_dev);
495 if (IS_ERR(ubi_dev.mtd_info)) {
496 printf("Partition %s not found on device %s!\n", part_name,
497 mtd_dev);
498 return 1;
499 }
500
501 ubi_dev.selected = 1;
502
503 strcpy(ubi_dev.part_name, part_name);
504 err = ubi_dev_scan(ubi_dev.mtd_info, ubi_dev.part_name,
505 vid_header_offset);
506 if (err) {
507 printf("UBI init error %d\n", err);
508 ubi_dev.selected = 0;
509 return err;
510 }
511
512 ubi = ubi_devices[0];
513
514 return 0;
515}
516
517static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
518{
519 int64_t size = 0;
520 ulong addr = 0;
521
522 if (argc < 2)
523 return CMD_RET_USAGE;
524
525
526 if (strcmp(argv[1], "detach") == 0) {
527 if (argc < 2)
528 return CMD_RET_USAGE;
529
530 return ubi_detach();
531 }
532
533
534 if (strcmp(argv[1], "part") == 0) {
535 const char *vid_header_offset = NULL;
536
537
538 if (argc == 2) {
539 if (!ubi_dev.selected) {
540 printf("Error, no UBI device/partition selected!\n");
541 return 1;
542 }
543
544 printf("Device %d: %s, partition %s\n",
545 ubi_dev.nr, ubi_dev.mtd_info->name, ubi_dev.part_name);
546 return 0;
547 }
548
549 if (argc < 3)
550 return CMD_RET_USAGE;
551
552 if (argc > 3)
553 vid_header_offset = argv[3];
554
555 return ubi_part(argv[2], vid_header_offset);
556 }
557
558 if ((strcmp(argv[1], "part") != 0) && (!ubi_dev.selected)) {
559 printf("Error, no UBI device/partition selected!\n");
560 return 1;
561 }
562
563 if (strcmp(argv[1], "info") == 0) {
564 int layout = 0;
565 if (argc > 2 && !strncmp(argv[2], "l", 1))
566 layout = 1;
567 return ubi_info(layout);
568 }
569
570 if (strcmp(argv[1], "check") == 0) {
571 if (argc > 2)
572 return ubi_check(argv[2]);
573
574 printf("Error, no volume name passed\n");
575 return 1;
576 }
577
578 if (strncmp(argv[1], "create", 6) == 0) {
579 int dynamic = 1;
580 int id = UBI_VOL_NUM_AUTO;
581
582
583 size = 0;
584
585
586 if (argc == 6) {
587 id = simple_strtoull(argv[5], NULL, 16);
588 argc--;
589 }
590
591
592 if (argc == 5) {
593 if (strncmp(argv[4], "s", 1) == 0)
594 dynamic = 0;
595 else if (strncmp(argv[4], "d", 1) != 0) {
596 printf("Incorrect type\n");
597 return 1;
598 }
599 argc--;
600 }
601
602 if (argc == 4) {
603 size = simple_strtoull(argv[3], NULL, 16);
604 argc--;
605 }
606
607 if (!size) {
608 size = (int64_t)ubi->avail_pebs * ubi->leb_size;
609 printf("No size specified -> Using max size (%lld)\n", size);
610 }
611
612 if (argc == 3)
613 return ubi_create_vol(argv[2], size, dynamic, id);
614 }
615
616 if (strncmp(argv[1], "remove", 6) == 0) {
617
618 if (argc == 3)
619 return ubi_remove_vol(argv[2]);
620 }
621
622 if (strncmp(argv[1], "write", 5) == 0) {
623 int ret;
624
625 if (argc < 5) {
626 printf("Please see usage\n");
627 return 1;
628 }
629
630 addr = simple_strtoul(argv[2], NULL, 16);
631 size = simple_strtoul(argv[4], NULL, 16);
632
633 if (strlen(argv[1]) == 10 &&
634 strncmp(argv[1] + 5, ".part", 5) == 0) {
635 if (argc < 6) {
636 ret = ubi_volume_continue_write(argv[3],
637 (void *)addr, size);
638 } else {
639 size_t full_size;
640 full_size = simple_strtoul(argv[5], NULL, 16);
641 ret = ubi_volume_begin_write(argv[3],
642 (void *)addr, size, full_size);
643 }
644 } else {
645 ret = ubi_volume_write(argv[3], (void *)addr, size);
646 }
647 if (!ret) {
648 printf("%lld bytes written to volume %s\n", size,
649 argv[3]);
650 }
651
652 return ret;
653 }
654
655 if (strncmp(argv[1], "read", 4) == 0) {
656 size = 0;
657
658
659 if (argc == 5) {
660 size = simple_strtoul(argv[4], NULL, 16);
661 argc--;
662 }
663
664
665 if (argc == 4) {
666 addr = simple_strtoul(argv[2], NULL, 16);
667 argc--;
668 }
669
670 if (argc == 3) {
671 printf("Read %lld bytes from volume %s to %lx\n", size,
672 argv[3], addr);
673
674 return ubi_volume_read(argv[3], (char *)addr, size);
675 }
676 }
677
678 printf("Please see usage\n");
679 return 1;
680}
681
682U_BOOT_CMD(
683 ubi, 6, 1, do_ubi,
684 "ubi commands",
685 "detach"
686 " - detach ubi from a mtd partition\n"
687 "ubi part [part] [offset]\n"
688 " - Show or set current partition (with optional VID"
689 " header offset)\n"
690 "ubi info [l[ayout]]"
691 " - Display volume and ubi layout information\n"
692 "ubi check volumename"
693 " - check if volumename exists\n"
694 "ubi create[vol] volume [size] [type] [id]"
695 " - create volume name with size\n"
696 "ubi write[vol] address volume size"
697 " - Write volume from address with size\n"
698 "ubi write.part address volume size [fullsize]\n"
699 " - Write part of a volume from address\n"
700 "ubi read[vol] address volume [size]"
701 " - Read volume to address with size\n"
702 "ubi remove[vol] volume"
703 " - Remove volume\n"
704 "[Legends]\n"
705 " volume: character name\n"
706 " size: specified in bytes\n"
707 " type: s[tatic] or d[ynamic] (default=dynamic)"
708);
709
