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wdenkaffae2b2002-08-17 09:36:01 +00001/*
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>
Stephen Warren10a37fd2012-09-21 09:50:57 +000027#include <malloc.h>
Grant Likely735dd972007-02-20 09:04:34 +010028#include <part.h>
wdenkaffae2b2002-08-17 09:36:01 +000029
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
Grant Likely735dd972007-02-20 09:04:34 +010038struct block_drvr {
39 char *name;
40 block_dev_desc_t* (*get_dev)(int dev);
41};
42
43static const struct block_drvr block_drvr[] = {
Jon Loeligercde5c642007-07-09 17:22:37 -050044#if defined(CONFIG_CMD_IDE)
Grant Likely735dd972007-02-20 09:04:34 +010045 { .name = "ide", .get_dev = ide_get_dev, },
46#endif
Dave Liuc7057b52008-03-26 22:49:44 +080047#if defined(CONFIG_CMD_SATA)
48 {.name = "sata", .get_dev = sata_get_dev, },
49#endif
Jon Loeligercde5c642007-07-09 17:22:37 -050050#if defined(CONFIG_CMD_SCSI)
Grant Likely735dd972007-02-20 09:04:34 +010051 { .name = "scsi", .get_dev = scsi_get_dev, },
52#endif
Jon Loeligercde5c642007-07-09 17:22:37 -050053#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
Grant Likely735dd972007-02-20 09:04:34 +010054 { .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
Stefan Roese751bb572007-02-20 13:21:57 +010065DECLARE_GLOBAL_DATA_PTR;
Stefan Roese751bb572007-02-20 13:21:57 +010066
Gabe Black0c9c8fb2012-10-12 14:26:08 +000067#ifdef HAVE_BLOCK_DEVICE
Rob Herring99d2c202012-09-21 04:08:17 +000068block_dev_desc_t *get_dev(const char *ifname, int dev)
Grant Likely735dd972007-02-20 09:04:34 +010069{
70 const struct block_drvr *drvr = block_drvr;
Stefan Roese6c7cac82007-02-22 07:43:34 +010071 block_dev_desc_t* (*reloc_get_dev)(int dev);
Heiko Schocher23090da2010-09-17 13:10:36 +020072 char *name;
Grant Likely735dd972007-02-20 09:04:34 +010073
Tim Kientzle7e71dc62012-03-27 11:43:25 +020074 if (!ifname)
75 return NULL;
76
Heiko Schocher23090da2010-09-17 13:10:36 +020077 name = drvr->name;
Wolfgang Denk2e5167c2010-10-28 20:00:11 +020078#ifdef CONFIG_NEEDS_MANUAL_RELOC
Heiko Schocher23090da2010-09-17 13:10:36 +020079 name += gd->reloc_off;
80#endif
Lei Wenb16aadf2011-02-15 16:56:40 +080081 while (drvr->name) {
Heiko Schocher23090da2010-09-17 13:10:36 +020082 name = drvr->name;
Peter Tyser521af042009-09-21 11:20:36 -050083 reloc_get_dev = drvr->get_dev;
Wolfgang Denk2e5167c2010-10-28 20:00:11 +020084#ifdef CONFIG_NEEDS_MANUAL_RELOC
Heiko Schocher23090da2010-09-17 13:10:36 +020085 name += gd->reloc_off;
Peter Tyser521af042009-09-21 11:20:36 -050086 reloc_get_dev += gd->reloc_off;
87#endif
Heiko Schocher23090da2010-09-17 13:10:36 +020088 if (strncmp(ifname, name, strlen(name)) == 0)
Stefan Roese751bb572007-02-20 13:21:57 +010089 return reloc_get_dev(dev);
Grant Likely735dd972007-02-20 09:04:34 +010090 drvr++;
91 }
92 return NULL;
93}
94#else
Rob Herring99d2c202012-09-21 04:08:17 +000095block_dev_desc_t *get_dev(const char *ifname, int dev)
Grant Likely735dd972007-02-20 09:04:34 +010096{
97 return NULL;
98}
99#endif
100
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000101#ifdef HAVE_BLOCK_DEVICE
Grant Likely735dd972007-02-20 09:04:34 +0100102
wdenkaffae2b2002-08-17 09:36:01 +0000103/* ------------------------------------------------------------------------- */
104/*
105 * reports device info to the user
106 */
Sergei Trofimovich69a2a4d2010-08-08 15:05:39 +0300107
108#ifdef CONFIG_LBA48
109typedef uint64_t lba512_t;
110#else
111typedef lbaint_t lba512_t;
112#endif
113
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
wdenkaffae2b2002-08-17 09:36:01 +0000128void dev_print (block_dev_desc_t *dev_desc)
129{
Sergei Trofimovich69a2a4d2010-08-08 15:05:39 +0300130 lba512_t lba512; /* number of blocks if 512bytes block size */
wdenkaffae2b2002-08-17 09:36:01 +0000131
Wolfgang Denkaf75a452009-05-15 09:27:58 +0200132 if (dev_desc->type == DEV_TYPE_UNKNOWN) {
133 puts ("not available\n");
134 return;
135 }
136
Tor Krill8ec6e332008-05-29 11:10:30 +0200137 switch (dev_desc->if_type) {
Detlev Zundel574b3192008-05-05 16:11:21 +0200138 case IF_TYPE_SCSI:
139 printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n",
140 dev_desc->target,dev_desc->lun,
wdenkaffae2b2002-08-17 09:36:01 +0000141 dev_desc->vendor,
142 dev_desc->product,
143 dev_desc->revision);
Detlev Zundel574b3192008-05-05 16:11:21 +0200144 break;
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200145 case IF_TYPE_ATAPI:
Detlev Zundel574b3192008-05-05 16:11:21 +0200146 case IF_TYPE_IDE:
147 case IF_TYPE_SATA:
148 printf ("Model: %s Firm: %s Ser#: %s\n",
149 dev_desc->vendor,
150 dev_desc->revision,
151 dev_desc->product);
152 break;
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200153 case IF_TYPE_SD:
154 case IF_TYPE_MMC:
Nícolas Carneiro Lebedenco47bebe32008-09-04 15:35:46 -0300155 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;
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200161 case IF_TYPE_DOC:
162 puts("device type DOC\n");
163 return;
Tor Krill8ec6e332008-05-29 11:10:30 +0200164 case IF_TYPE_UNKNOWN:
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200165 puts("device type unknown\n");
166 return;
Detlev Zundel574b3192008-05-05 16:11:21 +0200167 default:
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200168 printf("Unhandled device type: %i\n", dev_desc->if_type);
Detlev Zundel574b3192008-05-05 16:11:21 +0200169 return;
wdenkaffae2b2002-08-17 09:36:01 +0000170 }
171 puts (" Type: ");
172 if (dev_desc->removable)
173 puts ("Removable ");
174 switch (dev_desc->type & 0x1F) {
Detlev Zundel726c0f12008-05-05 16:11:22 +0200175 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;
wdenkaffae2b2002-08-17 09:36:01 +0000190 }
191 puts ("\n");
Jerry Huang33699df2012-11-06 15:33:12 +0000192 if (dev_desc->lba > 0L && dev_desc->blksz > 0L) {
wdenkaffae2b2002-08-17 09:36:01 +0000193 ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
wdenkc40b2952004-03-13 23:29:43 +0000194 lbaint_t lba;
wdenk6e592382004-04-18 17:39:38 +0000195
196 lba = dev_desc->lba;
wdenkaffae2b2002-08-17 09:36:01 +0000197
wdenkc40b2952004-03-13 23:29:43 +0000198 lba512 = (lba * (dev_desc->blksz/512));
wdenkaffae2b2002-08-17 09:36:01 +0000199 /* round to 1 digit */
Sergei Trofimovich69a2a4d2010-08-08 15:05:39 +0300200 mb = lba512_muldiv(lba512, 10, 2048); /* 2048 = (1024 * 1024) / 512 MB */
201
wdenkaffae2b2002-08-17 09:36:01 +0000202 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);
wdenk42dfe7a2004-03-14 22:25:36 +0000208#ifdef CONFIG_LBA48
wdenk6e592382004-04-18 17:39:38 +0000209 if (dev_desc->lba48)
wdenkc40b2952004-03-13 23:29:43 +0000210 printf (" Supports 48-bit addressing\n");
211#endif
Heiko Schocher4b142fe2009-12-03 11:21:21 +0100212#if defined(CONFIG_SYS_64BIT_LBA)
Mike Frysinger6c6166f2009-02-16 23:21:36 -0500213 printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n",
wdenkc40b2952004-03-13 23:29:43 +0000214 mb_quot, mb_rem,
215 gb_quot, gb_rem,
216 lba,
217 dev_desc->blksz);
218#else
wdenkaffae2b2002-08-17 09:36:01 +0000219 printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\n",
220 mb_quot, mb_rem,
221 gb_quot, gb_rem,
wdenkc40b2952004-03-13 23:29:43 +0000222 (ulong)lba,
wdenkaffae2b2002-08-17 09:36:01 +0000223 dev_desc->blksz);
wdenkc40b2952004-03-13 23:29:43 +0000224#endif
wdenkaffae2b2002-08-17 09:36:01 +0000225 } else {
226 puts (" Capacity: not available\n");
227 }
228}
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500229#endif
wdenkaffae2b2002-08-17 09:36:01 +0000230
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000231#ifdef HAVE_BLOCK_DEVICE
wdenkaffae2b2002-08-17 09:36:01 +0000232
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
richardretanubun07f3d782008-09-26 11:13:22 -0400249/* 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
wdenkaffae2b2002-08-17 09:36:01 +0000257#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
wdenkc7de8292002-11-19 11:04:11 +0000263
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
Rob Herring99d2c202012-09-21 04:08:17 +0000270 dev_desc->part_type = PART_TYPE_UNKNOWN;
wdenkaffae2b2002-08-17 09:36:01 +0000271}
272
273
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000274#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
wdenkaffae2b2002-08-17 09:36:01 +0000280static 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) {
Detlev Zundel726c0f12008-05-05 16:11:22 +0200284 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;
Lei Wen8f3b9642010-09-13 22:07:28 +0800302 case IF_TYPE_MMC:
303 puts ("MMC");
304 break;
Detlev Zundel726c0f12008-05-05 16:11:22 +0200305 default:
306 puts ("UNKNOWN");
307 break;
wdenkaffae2b2002-08-17 09:36:01 +0000308 }
309 printf (" device %d -- Partition Type: %s\n\n",
310 dev_desc->dev, type);
311}
312
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000313#endif /* any CONFIG_..._PARTITION */
314
wdenkaffae2b2002-08-17 09:36:01 +0000315void 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
wdenkc7de8292002-11-19 11:04:11 +0000341
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
richardretanubun07f3d782008-09-26 11:13:22 -0400349
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
wdenkaffae2b2002-08-17 09:36:01 +0000357 }
358 puts ("## Unknown partition table\n");
359}
360
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000361#endif /* HAVE_BLOCK_DEVICE */
Stephen Warren2f501642012-09-21 12:46:54 +0000362
363int get_partition_info(block_dev_desc_t *dev_desc, int part
364 , disk_partition_t *info)
365{
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000366#ifdef HAVE_BLOCK_DEVICE
Stephen Warren2f501642012-09-21 12:46:54 +0000367
Stephen Warren894bfbb2012-09-21 09:50:59 +0000368#ifdef CONFIG_PARTITION_UUIDS
369 /* The common case is no UUID support */
370 info->uuid[0] = 0;
371#endif
372
Stephen Warren2f501642012-09-21 12:46:54 +0000373 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 }
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000421#endif /* HAVE_BLOCK_DEVICE */
Stephen Warren2f501642012-09-21 12:46:54 +0000422
423 return -1;
424}
Rob Herring99d2c202012-09-21 04:08:17 +0000425
Stephen Warren2023e602012-09-21 09:50:56 +0000426int 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
Stephen Warren10a37fd2012-09-21 09:50:57 +0000448#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,
Rob Herring99d2c202012-09-21 04:08:17 +0000452 block_dev_desc_t **dev_desc,
Stephen Warren10a37fd2012-09-21 09:50:57 +0000453 disk_partition_t *info, int allow_whole_dev)
Rob Herring99d2c202012-09-21 04:08:17 +0000454{
Stephen Warren10a37fd2012-09-21 09:50:57 +0000455 int ret = -1;
456 const char *part_str;
457 char *dup_str = NULL;
458 const char *dev_str;
Rob Herring99d2c202012-09-21 04:08:17 +0000459 int dev;
Stephen Warren10a37fd2012-09-21 09:50:57 +0000460 char *ep;
461 int p;
462 int part;
463 disk_partition_t tmpinfo;
Rob Herring99d2c202012-09-21 04:08:17 +0000464
Simon Glass92ccc962012-12-26 09:53:35 +0000465 /*
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
Stephen Warren10a37fd2012-09-21 09:50:57 +0000482 /* If no dev_part_str, use bootdevice environment variable */
Stephen Warrena10973e2012-09-28 05:34:09 +0000483 if (!dev_part_str || !strlen(dev_part_str) ||
484 !strcmp(dev_part_str, "-"))
Stephen Warren10a37fd2012-09-21 09:50:57 +0000485 dev_part_str = getenv("bootdevice");
Rob Herring99d2c202012-09-21 04:08:17 +0000486
Stephen Warren10a37fd2012-09-21 09:50:57 +0000487 /* If still no dev_part_str, it's an error */
488 if (!dev_part_str) {
489 printf("** No device specified **\n");
490 goto cleanup;
Rob Herring99d2c202012-09-21 04:08:17 +0000491 }
492
Stephen Warren10a37fd2012-09-21 09:50:57 +0000493 /* 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;
502 }
Rob Herring99d2c202012-09-21 04:08:17 +0000503
Stephen Warren10a37fd2012-09-21 09:50:57 +0000504 /* 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;
Rob Herring99d2c202012-09-21 04:08:17 +0000525 }
Rob Herring99d2c202012-09-21 04:08:17 +0000526 }
527
Stephen Warren10a37fd2012-09-21 09:50:57 +0000528 /*
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 }
Rob Herring99d2c202012-09-21 04:08:17 +0000539
Stephen Warren10a37fd2012-09-21 09:50:57 +0000540 /*
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;
549 }
550
Lan Yixun (dlan)50ffc3b2013-07-20 08:17:59 +0800551 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
552
Stephen Warren10a37fd2012-09-21 09:50:57 +0000553 info->start = 0;
554 info->size = (*dev_desc)->lba;
555 info->blksz = (*dev_desc)->blksz;
556 info->bootable = 0;
Stephen Warren6ab6a652012-10-10 07:57:51 +0000557 strcpy((char *)info->type, BOOT_PART_TYPE);
558 strcpy((char *)info->name, "Whole Disk");
Stephen Warren10a37fd2012-09-21 09:50:57 +0000559#ifdef CONFIG_PARTITION_UUIDS
560 info->uuid[0] = 0;
561#endif
562
563 ret = 0;
564 goto cleanup;
565 }
566
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;
Stephen Warren10a37fd2012-09-21 09:50:57 +0000622 } else {
623 printf("** No valid partitions found **\n");
Stephen Warren71bba422012-10-08 07:45:54 +0000624 ret = -1;
Stephen Warren10a37fd2012-09-21 09:50:57 +0000625 goto cleanup;
626 }
Rob Herring99d2c202012-09-21 04:08:17 +0000627 }
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);
Stephen Warren10a37fd2012-09-21 09:50:57 +0000632 ret = -1;
633 goto cleanup;
Rob Herring99d2c202012-09-21 04:08:17 +0000634 }
635
Lan Yixun (dlan)50ffc3b2013-07-20 08:17:59 +0800636 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
637
Stephen Warren10a37fd2012-09-21 09:50:57 +0000638 ret = part;
639 goto cleanup;
Rob Herring99d2c202012-09-21 04:08:17 +0000640
Stephen Warren10a37fd2012-09-21 09:50:57 +0000641cleanup:
642 free(dup_str);
643 return ret;
Rob Herring99d2c202012-09-21 04:08:17 +0000644}