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affae2bf
WD
1/*
2 * (C) Copyright 2001
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <command.h>
26#include <ide.h>
10a37fd7 27#include <malloc.h>
735dd97b 28#include <part.h>
affae2bf
WD
29
30#undef PART_DEBUG
31
32#ifdef PART_DEBUG
33#define PRINTF(fmt,args...) printf (fmt ,##args)
34#else
35#define PRINTF(fmt,args...)
36#endif
37
735dd97b
GL
38struct block_drvr {
39 char *name;
40 block_dev_desc_t* (*get_dev)(int dev);
41};
42
43static const struct block_drvr block_drvr[] = {
cde5c64d 44#if defined(CONFIG_CMD_IDE)
735dd97b
GL
45 { .name = "ide", .get_dev = ide_get_dev, },
46#endif
c7057b52
DL
47#if defined(CONFIG_CMD_SATA)
48 {.name = "sata", .get_dev = sata_get_dev, },
49#endif
cde5c64d 50#if defined(CONFIG_CMD_SCSI)
735dd97b
GL
51 { .name = "scsi", .get_dev = scsi_get_dev, },
52#endif
cde5c64d 53#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
735dd97b
GL
54 { .name = "usb", .get_dev = usb_stor_get_dev, },
55#endif
56#if defined(CONFIG_MMC)
57 { .name = "mmc", .get_dev = mmc_get_dev, },
58#endif
59#if defined(CONFIG_SYSTEMACE)
60 { .name = "ace", .get_dev = systemace_get_dev, },
61#endif
62 { },
63};
64
751bb571 65DECLARE_GLOBAL_DATA_PTR;
751bb571 66
0c9c8fb5 67#ifdef HAVE_BLOCK_DEVICE
99d2c205 68block_dev_desc_t *get_dev(const char *ifname, int dev)
735dd97b
GL
69{
70 const struct block_drvr *drvr = block_drvr;
6c7cac8c 71 block_dev_desc_t* (*reloc_get_dev)(int dev);
23090dac 72 char *name;
735dd97b 73
7e71dc68
TK
74 if (!ifname)
75 return NULL;
76
23090dac 77 name = drvr->name;
2e5167cc 78#ifdef CONFIG_NEEDS_MANUAL_RELOC
23090dac
HS
79 name += gd->reloc_off;
80#endif
b16aadf4 81 while (drvr->name) {
23090dac 82 name = drvr->name;
521af04d 83 reloc_get_dev = drvr->get_dev;
2e5167cc 84#ifdef CONFIG_NEEDS_MANUAL_RELOC
23090dac 85 name += gd->reloc_off;
521af04d
PT
86 reloc_get_dev += gd->reloc_off;
87#endif
23090dac 88 if (strncmp(ifname, name, strlen(name)) == 0)
751bb571 89 return reloc_get_dev(dev);
735dd97b
GL
90 drvr++;
91 }
92 return NULL;
93}
94#else
99d2c205 95block_dev_desc_t *get_dev(const char *ifname, int dev)
735dd97b
GL
96{
97 return NULL;
98}
99#endif
100
0c9c8fb5 101#ifdef HAVE_BLOCK_DEVICE
affae2bf
WD
102
103/* ------------------------------------------------------------------------- */
104/*
105 * reports device info to the user
106 */
69a2a4d9 107
42dfe7a1 108#ifdef CONFIG_LBA48
69a2a4d9 109typedef uint64_t lba512_t;
c40b2956 110#else
69a2a4d9 111typedef lbaint_t lba512_t;
c40b2956 112#endif
affae2bf 113
69a2a4d9
ST
114/*
115 * Overflowless variant of (block_count * mul_by / div_by)
116 * when div_by > mul_by
117 */
118static lba512_t lba512_muldiv (lba512_t block_count, lba512_t mul_by, lba512_t div_by)
119{
120 lba512_t bc_quot, bc_rem;
121
122 /* x * m / d == x / d * m + (x % d) * m / d */
123 bc_quot = block_count / div_by;
124 bc_rem = block_count - div_by * bc_quot;
125 return bc_quot * mul_by + (bc_rem * mul_by) / div_by;
126}
127
128void dev_print (block_dev_desc_t *dev_desc)
129{
130 lba512_t lba512; /* number of blocks if 512bytes block size */
131
af75a45d
WD
132 if (dev_desc->type == DEV_TYPE_UNKNOWN) {
133 puts ("not available\n");
134 return;
135 }
136
8ec6e332 137 switch (dev_desc->if_type) {
574b3195
DZ
138 case IF_TYPE_SCSI:
139 printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n",
140 dev_desc->target,dev_desc->lun,
affae2bf 141 dev_desc->vendor,
574b3195
DZ
142 dev_desc->product,
143 dev_desc->revision);
144 break;
6e24a1eb 145 case IF_TYPE_ATAPI:
574b3195
DZ
146 case IF_TYPE_IDE:
147 case IF_TYPE_SATA:
c7057b52
DL
148 printf ("Model: %s Firm: %s Ser#: %s\n",
149 dev_desc->vendor,
150 dev_desc->revision,
151 dev_desc->product);
574b3195 152 break;
6e24a1eb
RB
153 case IF_TYPE_SD:
154 case IF_TYPE_MMC:
47bebe34
NCL
155 case IF_TYPE_USB:
156 printf ("Vendor: %s Rev: %s Prod: %s\n",
157 dev_desc->vendor,
158 dev_desc->revision,
159 dev_desc->product);
160 break;
6e24a1eb
RB
161 case IF_TYPE_DOC:
162 puts("device type DOC\n");
163 return;
8ec6e332 164 case IF_TYPE_UNKNOWN:
6e24a1eb
RB
165 puts("device type unknown\n");
166 return;
574b3195 167 default:
6e24a1eb 168 printf("Unhandled device type: %i\n", dev_desc->if_type);
574b3195 169 return;
affae2bf
WD
170 }
171 puts (" Type: ");
172 if (dev_desc->removable)
173 puts ("Removable ");
174 switch (dev_desc->type & 0x1F) {
726c0f1e
DZ
175 case DEV_TYPE_HARDDISK:
176 puts ("Hard Disk");
177 break;
178 case DEV_TYPE_CDROM:
179 puts ("CD ROM");
180 break;
181 case DEV_TYPE_OPDISK:
182 puts ("Optical Device");
183 break;
184 case DEV_TYPE_TAPE:
185 puts ("Tape");
186 break;
187 default:
188 printf ("# %02X #", dev_desc->type & 0x1F);
189 break;
affae2bf
WD
190 }
191 puts ("\n");
33699df1 192 if (dev_desc->lba > 0L && dev_desc->blksz > 0L) {
affae2bf 193 ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
c40b2956 194 lbaint_t lba;
6e592385
WD
195
196 lba = dev_desc->lba;
affae2bf 197
c40b2956 198 lba512 = (lba * (dev_desc->blksz/512));
affae2bf 199 /* round to 1 digit */
69a2a4d9
ST
200 mb = lba512_muldiv(lba512, 10, 2048); /* 2048 = (1024 * 1024) / 512 MB */
201
affae2bf
WD
202 mb_quot = mb / 10;
203 mb_rem = mb - (10 * mb_quot);
204
205 gb = mb / 1024;
206 gb_quot = gb / 10;
207 gb_rem = gb - (10 * gb_quot);
42dfe7a1 208#ifdef CONFIG_LBA48
6e592385 209 if (dev_desc->lba48)
c40b2956
WD
210 printf (" Supports 48-bit addressing\n");
211#endif
4b142feb 212#if defined(CONFIG_SYS_64BIT_LBA)
6c6166f5 213 printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n",
c40b2956
WD
214 mb_quot, mb_rem,
215 gb_quot, gb_rem,
216 lba,
217 dev_desc->blksz);
218#else
affae2bf
WD
219 printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\n",
220 mb_quot, mb_rem,
221 gb_quot, gb_rem,
c40b2956 222 (ulong)lba,
affae2bf 223 dev_desc->blksz);
c40b2956 224#endif
affae2bf
WD
225 } else {
226 puts (" Capacity: not available\n");
227 }
228}
b3aff0cb 229#endif
affae2bf 230
0c9c8fb5 231#ifdef HAVE_BLOCK_DEVICE
affae2bf
WD
232
233void init_part (block_dev_desc_t * dev_desc)
234{
235#ifdef CONFIG_ISO_PARTITION
236 if (test_part_iso(dev_desc) == 0) {
237 dev_desc->part_type = PART_TYPE_ISO;
238 return;
239 }
240#endif
241
242#ifdef CONFIG_MAC_PARTITION
243 if (test_part_mac(dev_desc) == 0) {
244 dev_desc->part_type = PART_TYPE_MAC;
245 return;
246 }
247#endif
248
07f3d789 249/* must be placed before DOS partition detection */
250#ifdef CONFIG_EFI_PARTITION
251 if (test_part_efi(dev_desc) == 0) {
252 dev_desc->part_type = PART_TYPE_EFI;
253 return;
254 }
255#endif
256
affae2bf
WD
257#ifdef CONFIG_DOS_PARTITION
258 if (test_part_dos(dev_desc) == 0) {
259 dev_desc->part_type = PART_TYPE_DOS;
260 return;
261 }
262#endif
c7de829c
WD
263
264#ifdef CONFIG_AMIGA_PARTITION
265 if (test_part_amiga(dev_desc) == 0) {
266 dev_desc->part_type = PART_TYPE_AMIGA;
267 return;
268 }
269#endif
99d2c205 270 dev_desc->part_type = PART_TYPE_UNKNOWN;
affae2bf
WD
271}
272
273
0c9c8fb5
GB
274#if defined(CONFIG_MAC_PARTITION) || \
275 defined(CONFIG_DOS_PARTITION) || \
276 defined(CONFIG_ISO_PARTITION) || \
277 defined(CONFIG_AMIGA_PARTITION) || \
278 defined(CONFIG_EFI_PARTITION)
279
affae2bf
WD
280static void print_part_header (const char *type, block_dev_desc_t * dev_desc)
281{
282 puts ("\nPartition Map for ");
283 switch (dev_desc->if_type) {
726c0f1e
DZ
284 case IF_TYPE_IDE:
285 puts ("IDE");
286 break;
287 case IF_TYPE_SATA:
288 puts ("SATA");
289 break;
290 case IF_TYPE_SCSI:
291 puts ("SCSI");
292 break;
293 case IF_TYPE_ATAPI:
294 puts ("ATAPI");
295 break;
296 case IF_TYPE_USB:
297 puts ("USB");
298 break;
299 case IF_TYPE_DOC:
300 puts ("DOC");
301 break;
8f3b9642
LW
302 case IF_TYPE_MMC:
303 puts ("MMC");
304 break;
726c0f1e
DZ
305 default:
306 puts ("UNKNOWN");
307 break;
affae2bf
WD
308 }
309 printf (" device %d -- Partition Type: %s\n\n",
310 dev_desc->dev, type);
311}
312
0c9c8fb5
GB
313#endif /* any CONFIG_..._PARTITION */
314
affae2bf
WD
315void print_part (block_dev_desc_t * dev_desc)
316{
317
318 switch (dev_desc->part_type) {
319#ifdef CONFIG_MAC_PARTITION
320 case PART_TYPE_MAC:
321 PRINTF ("## Testing for valid MAC partition ##\n");
322 print_part_header ("MAC", dev_desc);
323 print_part_mac (dev_desc);
324 return;
325#endif
326#ifdef CONFIG_DOS_PARTITION
327 case PART_TYPE_DOS:
328 PRINTF ("## Testing for valid DOS partition ##\n");
329 print_part_header ("DOS", dev_desc);
330 print_part_dos (dev_desc);
331 return;
332#endif
333
334#ifdef CONFIG_ISO_PARTITION
335 case PART_TYPE_ISO:
336 PRINTF ("## Testing for valid ISO Boot partition ##\n");
337 print_part_header ("ISO", dev_desc);
338 print_part_iso (dev_desc);
339 return;
340#endif
c7de829c
WD
341
342#ifdef CONFIG_AMIGA_PARTITION
343 case PART_TYPE_AMIGA:
344 PRINTF ("## Testing for a valid Amiga partition ##\n");
345 print_part_header ("AMIGA", dev_desc);
346 print_part_amiga (dev_desc);
347 return;
348#endif
07f3d789 349
350#ifdef CONFIG_EFI_PARTITION
351 case PART_TYPE_EFI:
352 PRINTF ("## Testing for valid EFI partition ##\n");
353 print_part_header ("EFI", dev_desc);
354 print_part_efi (dev_desc);
355 return;
356#endif
affae2bf
WD
357 }
358 puts ("## Unknown partition table\n");
359}
360
0c9c8fb5 361#endif /* HAVE_BLOCK_DEVICE */
2f501646
SW
362
363int get_partition_info(block_dev_desc_t *dev_desc, int part
364 , disk_partition_t *info)
365{
0c9c8fb5 366#ifdef HAVE_BLOCK_DEVICE
2f501646 367
894bfbbf
SW
368#ifdef CONFIG_PARTITION_UUIDS
369 /* The common case is no UUID support */
370 info->uuid[0] = 0;
371#endif
372
2f501646
SW
373 switch (dev_desc->part_type) {
374#ifdef CONFIG_MAC_PARTITION
375 case PART_TYPE_MAC:
376 if (get_partition_info_mac(dev_desc, part, info) == 0) {
377 PRINTF("## Valid MAC partition found ##\n");
378 return 0;
379 }
380 break;
381#endif
382
383#ifdef CONFIG_DOS_PARTITION
384 case PART_TYPE_DOS:
385 if (get_partition_info_dos(dev_desc, part, info) == 0) {
386 PRINTF("## Valid DOS partition found ##\n");
387 return 0;
388 }
389 break;
390#endif
391
392#ifdef CONFIG_ISO_PARTITION
393 case PART_TYPE_ISO:
394 if (get_partition_info_iso(dev_desc, part, info) == 0) {
395 PRINTF("## Valid ISO boot partition found ##\n");
396 return 0;
397 }
398 break;
399#endif
400
401#ifdef CONFIG_AMIGA_PARTITION
402 case PART_TYPE_AMIGA:
403 if (get_partition_info_amiga(dev_desc, part, info) == 0) {
404 PRINTF("## Valid Amiga partition found ##\n");
405 return 0;
406 }
407 break;
408#endif
409
410#ifdef CONFIG_EFI_PARTITION
411 case PART_TYPE_EFI:
412 if (get_partition_info_efi(dev_desc, part, info) == 0) {
413 PRINTF("## Valid EFI partition found ##\n");
414 return 0;
415 }
416 break;
417#endif
418 default:
419 break;
420 }
0c9c8fb5 421#endif /* HAVE_BLOCK_DEVICE */
2f501646
SW
422
423 return -1;
424}
99d2c205 425
2023e608
SW
426int get_device(const char *ifname, const char *dev_str,
427 block_dev_desc_t **dev_desc)
428{
429 char *ep;
430 int dev;
431
432 dev = simple_strtoul(dev_str, &ep, 16);
433 if (*ep) {
434 printf("** Bad device specification %s %s **\n",
435 ifname, dev_str);
436 return -1;
437 }
438
439 *dev_desc = get_dev(ifname, dev);
440 if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) {
441 printf("** Bad device %s %s **\n", ifname, dev_str);
442 return -1;
443 }
444
445 return dev;
446}
447
10a37fd7
SW
448#define PART_UNSPECIFIED -2
449#define PART_AUTO -1
450#define MAX_SEARCH_PARTITIONS 16
451int get_device_and_partition(const char *ifname, const char *dev_part_str,
99d2c205 452 block_dev_desc_t **dev_desc,
10a37fd7 453 disk_partition_t *info, int allow_whole_dev)
99d2c205 454{
10a37fd7
SW
455 int ret = -1;
456 const char *part_str;
457 char *dup_str = NULL;
458 const char *dev_str;
99d2c205 459 int dev;
10a37fd7
SW
460 char *ep;
461 int p;
462 int part;
463 disk_partition_t tmpinfo;
464
92ccc96b
SG
465 /*
466 * For now, we have a special case for sandbox, since there is no
467 * real block device support.
468 */
469 if (0 == strcmp(ifname, "host")) {
470 *dev_desc = NULL;
471 info->start = info->size = info->blksz = 0;
472 info->bootable = 0;
473 strcpy((char *)info->type, BOOT_PART_TYPE);
474 strcpy((char *)info->name, "Sandbox host");
475#ifdef CONFIG_PARTITION_UUIDS
476 info->uuid[0] = 0;
477#endif
478
479 return 0;
480 }
481
10a37fd7 482 /* If no dev_part_str, use bootdevice environment variable */
a10973e7
SW
483 if (!dev_part_str || !strlen(dev_part_str) ||
484 !strcmp(dev_part_str, "-"))
10a37fd7
SW
485 dev_part_str = getenv("bootdevice");
486
487 /* If still no dev_part_str, it's an error */
488 if (!dev_part_str) {
489 printf("** No device specified **\n");
490 goto cleanup;
491 }
492
493 /* Separate device and partition ID specification */
494 part_str = strchr(dev_part_str, ':');
495 if (part_str) {
496 dup_str = strdup(dev_part_str);
497 dup_str[part_str - dev_part_str] = 0;
498 dev_str = dup_str;
499 part_str++;
500 } else {
501 dev_str = dev_part_str;
99d2c205
RH
502 }
503
10a37fd7
SW
504 /* Look up the device */
505 dev = get_device(ifname, dev_str, dev_desc);
506 if (dev < 0)
507 goto cleanup;
508
509 /* Convert partition ID string to number */
510 if (!part_str || !*part_str) {
511 part = PART_UNSPECIFIED;
512 } else if (!strcmp(part_str, "auto")) {
513 part = PART_AUTO;
514 } else {
515 /* Something specified -> use exactly that */
516 part = (int)simple_strtoul(part_str, &ep, 16);
517 /*
518 * Less than whole string converted,
519 * or request for whole device, but caller requires partition.
520 */
521 if (*ep || (part == 0 && !allow_whole_dev)) {
522 printf("** Bad partition specification %s %s **\n",
523 ifname, dev_part_str);
524 goto cleanup;
525 }
526 }
527
528 /*
529 * No partition table on device,
530 * or user requested partition 0 (entire device).
531 */
532 if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) ||
533 (part == 0)) {
534 if (!(*dev_desc)->lba) {
535 printf("** Bad device size - %s %s **\n", ifname,
536 dev_str);
537 goto cleanup;
538 }
99d2c205 539
10a37fd7
SW
540 /*
541 * If user specified a partition ID other than 0,
542 * or the calling command only accepts partitions,
543 * it's an error.
544 */
545 if ((part > 0) || (!allow_whole_dev)) {
546 printf("** No partition table - %s %s **\n", ifname,
547 dev_str);
548 goto cleanup;
99d2c205 549 }
10a37fd7 550
50ffc3b6
LY
551 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
552
99d2c205 553 info->start = 0;
10a37fd7
SW
554 info->size = (*dev_desc)->lba;
555 info->blksz = (*dev_desc)->blksz;
556 info->bootable = 0;
6ab6a650
SW
557 strcpy((char *)info->type, BOOT_PART_TYPE);
558 strcpy((char *)info->name, "Whole Disk");
10a37fd7
SW
559#ifdef CONFIG_PARTITION_UUIDS
560 info->uuid[0] = 0;
561#endif
99d2c205 562
10a37fd7
SW
563 ret = 0;
564 goto cleanup;
99d2c205
RH
565 }
566
10a37fd7
SW
567 /*
568 * Now there's known to be a partition table,
569 * not specifying a partition means to pick partition 1.
570 */
571 if (part == PART_UNSPECIFIED)
572 part = 1;
573
574 /*
575 * If user didn't specify a partition number, or did specify something
576 * other than "auto", use that partition number directly.
577 */
578 if (part != PART_AUTO) {
579 ret = get_partition_info(*dev_desc, part, info);
580 if (ret) {
581 printf("** Invalid partition %d **\n", part);
582 goto cleanup;
583 }
584 } else {
585 /*
586 * Find the first bootable partition.
587 * If none are bootable, fall back to the first valid partition.
588 */
589 part = 0;
590 for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
591 ret = get_partition_info(*dev_desc, p, info);
592 if (ret)
593 continue;
594
595 /*
596 * First valid partition, or new better partition?
597 * If so, save partition ID.
598 */
599 if (!part || info->bootable)
600 part = p;
601
602 /* Best possible partition? Stop searching. */
603 if (info->bootable)
604 break;
605
606 /*
607 * We now need to search further for best possible.
608 * If we what we just queried was the best so far,
609 * save the info since we over-write it next loop.
610 */
611 if (part == p)
612 tmpinfo = *info;
613 }
614 /* If we found any acceptable partition */
615 if (part) {
616 /*
617 * If we searched all possible partition IDs,
618 * return the first valid partition we found.
619 */
620 if (p == MAX_SEARCH_PARTITIONS + 1)
621 *info = tmpinfo;
10a37fd7
SW
622 } else {
623 printf("** No valid partitions found **\n");
71bba424 624 ret = -1;
10a37fd7
SW
625 goto cleanup;
626 }
99d2c205
RH
627 }
628 if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
629 printf("** Invalid partition type \"%.32s\""
630 " (expect \"" BOOT_PART_TYPE "\")\n",
631 info->type);
10a37fd7
SW
632 ret = -1;
633 goto cleanup;
99d2c205
RH
634 }
635
50ffc3b6
LY
636 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
637
10a37fd7
SW
638 ret = part;
639 goto cleanup;
99d2c205 640
10a37fd7
SW
641cleanup:
642 free(dup_str);
643 return ret;
99d2c205 644}