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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
Gabe Black0c9c8fb2012-10-12 14:26:08 +000038/* Rather than repeat this expression each time, add a define for it */
Jon Loeligercde5c642007-07-09 17:22:37 -050039#if (defined(CONFIG_CMD_IDE) || \
Dave Liuc7057b52008-03-26 22:49:44 +080040 defined(CONFIG_CMD_SATA) || \
Jon Loeligercde5c642007-07-09 17:22:37 -050041 defined(CONFIG_CMD_SCSI) || \
42 defined(CONFIG_CMD_USB) || \
wdenk1968e612005-02-24 23:23:29 +000043 defined(CONFIG_MMC) || \
44 defined(CONFIG_SYSTEMACE) )
Gabe Black0c9c8fb2012-10-12 14:26:08 +000045#define HAVE_BLOCK_DEVICE
46#endif
wdenkaffae2b2002-08-17 09:36:01 +000047
Grant Likely735dd972007-02-20 09:04:34 +010048struct block_drvr {
49 char *name;
50 block_dev_desc_t* (*get_dev)(int dev);
51};
52
53static const struct block_drvr block_drvr[] = {
Jon Loeligercde5c642007-07-09 17:22:37 -050054#if defined(CONFIG_CMD_IDE)
Grant Likely735dd972007-02-20 09:04:34 +010055 { .name = "ide", .get_dev = ide_get_dev, },
56#endif
Dave Liuc7057b52008-03-26 22:49:44 +080057#if defined(CONFIG_CMD_SATA)
58 {.name = "sata", .get_dev = sata_get_dev, },
59#endif
Jon Loeligercde5c642007-07-09 17:22:37 -050060#if defined(CONFIG_CMD_SCSI)
Grant Likely735dd972007-02-20 09:04:34 +010061 { .name = "scsi", .get_dev = scsi_get_dev, },
62#endif
Jon Loeligercde5c642007-07-09 17:22:37 -050063#if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
Grant Likely735dd972007-02-20 09:04:34 +010064 { .name = "usb", .get_dev = usb_stor_get_dev, },
65#endif
66#if defined(CONFIG_MMC)
67 { .name = "mmc", .get_dev = mmc_get_dev, },
68#endif
69#if defined(CONFIG_SYSTEMACE)
70 { .name = "ace", .get_dev = systemace_get_dev, },
71#endif
72 { },
73};
74
Stefan Roese751bb572007-02-20 13:21:57 +010075DECLARE_GLOBAL_DATA_PTR;
Stefan Roese751bb572007-02-20 13:21:57 +010076
Gabe Black0c9c8fb2012-10-12 14:26:08 +000077#ifdef HAVE_BLOCK_DEVICE
Rob Herring99d2c202012-09-21 04:08:17 +000078block_dev_desc_t *get_dev(const char *ifname, int dev)
Grant Likely735dd972007-02-20 09:04:34 +010079{
80 const struct block_drvr *drvr = block_drvr;
Stefan Roese6c7cac82007-02-22 07:43:34 +010081 block_dev_desc_t* (*reloc_get_dev)(int dev);
Heiko Schocher23090da2010-09-17 13:10:36 +020082 char *name;
Grant Likely735dd972007-02-20 09:04:34 +010083
Tim Kientzle7e71dc62012-03-27 11:43:25 +020084 if (!ifname)
85 return NULL;
86
Heiko Schocher23090da2010-09-17 13:10:36 +020087 name = drvr->name;
Wolfgang Denk2e5167c2010-10-28 20:00:11 +020088#ifdef CONFIG_NEEDS_MANUAL_RELOC
Heiko Schocher23090da2010-09-17 13:10:36 +020089 name += gd->reloc_off;
90#endif
Lei Wenb16aadf2011-02-15 16:56:40 +080091 while (drvr->name) {
Heiko Schocher23090da2010-09-17 13:10:36 +020092 name = drvr->name;
Peter Tyser521af042009-09-21 11:20:36 -050093 reloc_get_dev = drvr->get_dev;
Wolfgang Denk2e5167c2010-10-28 20:00:11 +020094#ifdef CONFIG_NEEDS_MANUAL_RELOC
Heiko Schocher23090da2010-09-17 13:10:36 +020095 name += gd->reloc_off;
Peter Tyser521af042009-09-21 11:20:36 -050096 reloc_get_dev += gd->reloc_off;
97#endif
Heiko Schocher23090da2010-09-17 13:10:36 +020098 if (strncmp(ifname, name, strlen(name)) == 0)
Stefan Roese751bb572007-02-20 13:21:57 +010099 return reloc_get_dev(dev);
Grant Likely735dd972007-02-20 09:04:34 +0100100 drvr++;
101 }
102 return NULL;
103}
104#else
Rob Herring99d2c202012-09-21 04:08:17 +0000105block_dev_desc_t *get_dev(const char *ifname, int dev)
Grant Likely735dd972007-02-20 09:04:34 +0100106{
107 return NULL;
108}
109#endif
110
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000111#ifdef HAVE_BLOCK_DEVICE
Grant Likely735dd972007-02-20 09:04:34 +0100112
wdenkaffae2b2002-08-17 09:36:01 +0000113/* ------------------------------------------------------------------------- */
114/*
115 * reports device info to the user
116 */
Sergei Trofimovich69a2a4d2010-08-08 15:05:39 +0300117
118#ifdef CONFIG_LBA48
119typedef uint64_t lba512_t;
120#else
121typedef lbaint_t lba512_t;
122#endif
123
124/*
125 * Overflowless variant of (block_count * mul_by / div_by)
126 * when div_by > mul_by
127 */
128static lba512_t lba512_muldiv (lba512_t block_count, lba512_t mul_by, lba512_t div_by)
129{
130 lba512_t bc_quot, bc_rem;
131
132 /* x * m / d == x / d * m + (x % d) * m / d */
133 bc_quot = block_count / div_by;
134 bc_rem = block_count - div_by * bc_quot;
135 return bc_quot * mul_by + (bc_rem * mul_by) / div_by;
136}
137
wdenkaffae2b2002-08-17 09:36:01 +0000138void dev_print (block_dev_desc_t *dev_desc)
139{
Sergei Trofimovich69a2a4d2010-08-08 15:05:39 +0300140 lba512_t lba512; /* number of blocks if 512bytes block size */
wdenkaffae2b2002-08-17 09:36:01 +0000141
Wolfgang Denkaf75a452009-05-15 09:27:58 +0200142 if (dev_desc->type == DEV_TYPE_UNKNOWN) {
143 puts ("not available\n");
144 return;
145 }
146
Tor Krill8ec6e332008-05-29 11:10:30 +0200147 switch (dev_desc->if_type) {
Detlev Zundel574b3192008-05-05 16:11:21 +0200148 case IF_TYPE_SCSI:
149 printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n",
150 dev_desc->target,dev_desc->lun,
wdenkaffae2b2002-08-17 09:36:01 +0000151 dev_desc->vendor,
152 dev_desc->product,
153 dev_desc->revision);
Detlev Zundel574b3192008-05-05 16:11:21 +0200154 break;
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200155 case IF_TYPE_ATAPI:
Detlev Zundel574b3192008-05-05 16:11:21 +0200156 case IF_TYPE_IDE:
157 case IF_TYPE_SATA:
158 printf ("Model: %s Firm: %s Ser#: %s\n",
159 dev_desc->vendor,
160 dev_desc->revision,
161 dev_desc->product);
162 break;
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200163 case IF_TYPE_SD:
164 case IF_TYPE_MMC:
Nícolas Carneiro Lebedenco47bebe32008-09-04 15:35:46 -0300165 case IF_TYPE_USB:
166 printf ("Vendor: %s Rev: %s Prod: %s\n",
167 dev_desc->vendor,
168 dev_desc->revision,
169 dev_desc->product);
170 break;
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200171 case IF_TYPE_DOC:
172 puts("device type DOC\n");
173 return;
Tor Krill8ec6e332008-05-29 11:10:30 +0200174 case IF_TYPE_UNKNOWN:
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200175 puts("device type unknown\n");
176 return;
Detlev Zundel574b3192008-05-05 16:11:21 +0200177 default:
Remy Bohmer6e24a1e2008-09-19 13:30:06 +0200178 printf("Unhandled device type: %i\n", dev_desc->if_type);
Detlev Zundel574b3192008-05-05 16:11:21 +0200179 return;
wdenkaffae2b2002-08-17 09:36:01 +0000180 }
181 puts (" Type: ");
182 if (dev_desc->removable)
183 puts ("Removable ");
184 switch (dev_desc->type & 0x1F) {
Detlev Zundel726c0f12008-05-05 16:11:22 +0200185 case DEV_TYPE_HARDDISK:
186 puts ("Hard Disk");
187 break;
188 case DEV_TYPE_CDROM:
189 puts ("CD ROM");
190 break;
191 case DEV_TYPE_OPDISK:
192 puts ("Optical Device");
193 break;
194 case DEV_TYPE_TAPE:
195 puts ("Tape");
196 break;
197 default:
198 printf ("# %02X #", dev_desc->type & 0x1F);
199 break;
wdenkaffae2b2002-08-17 09:36:01 +0000200 }
201 puts ("\n");
Jerry Huang33699df2012-11-06 15:33:12 +0000202 if (dev_desc->lba > 0L && dev_desc->blksz > 0L) {
wdenkaffae2b2002-08-17 09:36:01 +0000203 ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
wdenkc40b2952004-03-13 23:29:43 +0000204 lbaint_t lba;
wdenk6e592382004-04-18 17:39:38 +0000205
206 lba = dev_desc->lba;
wdenkaffae2b2002-08-17 09:36:01 +0000207
wdenkc40b2952004-03-13 23:29:43 +0000208 lba512 = (lba * (dev_desc->blksz/512));
wdenkaffae2b2002-08-17 09:36:01 +0000209 /* round to 1 digit */
Sergei Trofimovich69a2a4d2010-08-08 15:05:39 +0300210 mb = lba512_muldiv(lba512, 10, 2048); /* 2048 = (1024 * 1024) / 512 MB */
211
wdenkaffae2b2002-08-17 09:36:01 +0000212 mb_quot = mb / 10;
213 mb_rem = mb - (10 * mb_quot);
214
215 gb = mb / 1024;
216 gb_quot = gb / 10;
217 gb_rem = gb - (10 * gb_quot);
wdenk42dfe7a2004-03-14 22:25:36 +0000218#ifdef CONFIG_LBA48
wdenk6e592382004-04-18 17:39:38 +0000219 if (dev_desc->lba48)
wdenkc40b2952004-03-13 23:29:43 +0000220 printf (" Supports 48-bit addressing\n");
221#endif
Heiko Schocher4b142fe2009-12-03 11:21:21 +0100222#if defined(CONFIG_SYS_64BIT_LBA)
Mike Frysinger6c6166f2009-02-16 23:21:36 -0500223 printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n",
wdenkc40b2952004-03-13 23:29:43 +0000224 mb_quot, mb_rem,
225 gb_quot, gb_rem,
226 lba,
227 dev_desc->blksz);
228#else
wdenkaffae2b2002-08-17 09:36:01 +0000229 printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\n",
230 mb_quot, mb_rem,
231 gb_quot, gb_rem,
wdenkc40b2952004-03-13 23:29:43 +0000232 (ulong)lba,
wdenkaffae2b2002-08-17 09:36:01 +0000233 dev_desc->blksz);
wdenkc40b2952004-03-13 23:29:43 +0000234#endif
wdenkaffae2b2002-08-17 09:36:01 +0000235 } else {
236 puts (" Capacity: not available\n");
237 }
238}
Jon Loeligerb3aff0c2007-07-10 11:19:50 -0500239#endif
wdenkaffae2b2002-08-17 09:36:01 +0000240
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000241#ifdef HAVE_BLOCK_DEVICE
wdenkaffae2b2002-08-17 09:36:01 +0000242
243void init_part (block_dev_desc_t * dev_desc)
244{
245#ifdef CONFIG_ISO_PARTITION
246 if (test_part_iso(dev_desc) == 0) {
247 dev_desc->part_type = PART_TYPE_ISO;
248 return;
249 }
250#endif
251
252#ifdef CONFIG_MAC_PARTITION
253 if (test_part_mac(dev_desc) == 0) {
254 dev_desc->part_type = PART_TYPE_MAC;
255 return;
256 }
257#endif
258
richardretanubun07f3d782008-09-26 11:13:22 -0400259/* must be placed before DOS partition detection */
260#ifdef CONFIG_EFI_PARTITION
261 if (test_part_efi(dev_desc) == 0) {
262 dev_desc->part_type = PART_TYPE_EFI;
263 return;
264 }
265#endif
266
wdenkaffae2b2002-08-17 09:36:01 +0000267#ifdef CONFIG_DOS_PARTITION
268 if (test_part_dos(dev_desc) == 0) {
269 dev_desc->part_type = PART_TYPE_DOS;
270 return;
271 }
272#endif
wdenkc7de8292002-11-19 11:04:11 +0000273
274#ifdef CONFIG_AMIGA_PARTITION
275 if (test_part_amiga(dev_desc) == 0) {
276 dev_desc->part_type = PART_TYPE_AMIGA;
277 return;
278 }
279#endif
Rob Herring99d2c202012-09-21 04:08:17 +0000280 dev_desc->part_type = PART_TYPE_UNKNOWN;
wdenkaffae2b2002-08-17 09:36:01 +0000281}
282
283
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000284#if defined(CONFIG_MAC_PARTITION) || \
285 defined(CONFIG_DOS_PARTITION) || \
286 defined(CONFIG_ISO_PARTITION) || \
287 defined(CONFIG_AMIGA_PARTITION) || \
288 defined(CONFIG_EFI_PARTITION)
289
wdenkaffae2b2002-08-17 09:36:01 +0000290static void print_part_header (const char *type, block_dev_desc_t * dev_desc)
291{
292 puts ("\nPartition Map for ");
293 switch (dev_desc->if_type) {
Detlev Zundel726c0f12008-05-05 16:11:22 +0200294 case IF_TYPE_IDE:
295 puts ("IDE");
296 break;
297 case IF_TYPE_SATA:
298 puts ("SATA");
299 break;
300 case IF_TYPE_SCSI:
301 puts ("SCSI");
302 break;
303 case IF_TYPE_ATAPI:
304 puts ("ATAPI");
305 break;
306 case IF_TYPE_USB:
307 puts ("USB");
308 break;
309 case IF_TYPE_DOC:
310 puts ("DOC");
311 break;
Lei Wen8f3b9642010-09-13 22:07:28 +0800312 case IF_TYPE_MMC:
313 puts ("MMC");
314 break;
Detlev Zundel726c0f12008-05-05 16:11:22 +0200315 default:
316 puts ("UNKNOWN");
317 break;
wdenkaffae2b2002-08-17 09:36:01 +0000318 }
319 printf (" device %d -- Partition Type: %s\n\n",
320 dev_desc->dev, type);
321}
322
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000323#endif /* any CONFIG_..._PARTITION */
324
wdenkaffae2b2002-08-17 09:36:01 +0000325void print_part (block_dev_desc_t * dev_desc)
326{
327
328 switch (dev_desc->part_type) {
329#ifdef CONFIG_MAC_PARTITION
330 case PART_TYPE_MAC:
331 PRINTF ("## Testing for valid MAC partition ##\n");
332 print_part_header ("MAC", dev_desc);
333 print_part_mac (dev_desc);
334 return;
335#endif
336#ifdef CONFIG_DOS_PARTITION
337 case PART_TYPE_DOS:
338 PRINTF ("## Testing for valid DOS partition ##\n");
339 print_part_header ("DOS", dev_desc);
340 print_part_dos (dev_desc);
341 return;
342#endif
343
344#ifdef CONFIG_ISO_PARTITION
345 case PART_TYPE_ISO:
346 PRINTF ("## Testing for valid ISO Boot partition ##\n");
347 print_part_header ("ISO", dev_desc);
348 print_part_iso (dev_desc);
349 return;
350#endif
wdenkc7de8292002-11-19 11:04:11 +0000351
352#ifdef CONFIG_AMIGA_PARTITION
353 case PART_TYPE_AMIGA:
354 PRINTF ("## Testing for a valid Amiga partition ##\n");
355 print_part_header ("AMIGA", dev_desc);
356 print_part_amiga (dev_desc);
357 return;
358#endif
richardretanubun07f3d782008-09-26 11:13:22 -0400359
360#ifdef CONFIG_EFI_PARTITION
361 case PART_TYPE_EFI:
362 PRINTF ("## Testing for valid EFI partition ##\n");
363 print_part_header ("EFI", dev_desc);
364 print_part_efi (dev_desc);
365 return;
366#endif
wdenkaffae2b2002-08-17 09:36:01 +0000367 }
368 puts ("## Unknown partition table\n");
369}
370
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000371#endif /* HAVE_BLOCK_DEVICE */
Stephen Warren2f501642012-09-21 12:46:54 +0000372
373int get_partition_info(block_dev_desc_t *dev_desc, int part
374 , disk_partition_t *info)
375{
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000376#ifdef HAVE_BLOCK_DEVICE
Stephen Warren2f501642012-09-21 12:46:54 +0000377
Stephen Warren894bfbb2012-09-21 09:50:59 +0000378#ifdef CONFIG_PARTITION_UUIDS
379 /* The common case is no UUID support */
380 info->uuid[0] = 0;
381#endif
382
Stephen Warren2f501642012-09-21 12:46:54 +0000383 switch (dev_desc->part_type) {
384#ifdef CONFIG_MAC_PARTITION
385 case PART_TYPE_MAC:
386 if (get_partition_info_mac(dev_desc, part, info) == 0) {
387 PRINTF("## Valid MAC partition found ##\n");
388 return 0;
389 }
390 break;
391#endif
392
393#ifdef CONFIG_DOS_PARTITION
394 case PART_TYPE_DOS:
395 if (get_partition_info_dos(dev_desc, part, info) == 0) {
396 PRINTF("## Valid DOS partition found ##\n");
397 return 0;
398 }
399 break;
400#endif
401
402#ifdef CONFIG_ISO_PARTITION
403 case PART_TYPE_ISO:
404 if (get_partition_info_iso(dev_desc, part, info) == 0) {
405 PRINTF("## Valid ISO boot partition found ##\n");
406 return 0;
407 }
408 break;
409#endif
410
411#ifdef CONFIG_AMIGA_PARTITION
412 case PART_TYPE_AMIGA:
413 if (get_partition_info_amiga(dev_desc, part, info) == 0) {
414 PRINTF("## Valid Amiga partition found ##\n");
415 return 0;
416 }
417 break;
418#endif
419
420#ifdef CONFIG_EFI_PARTITION
421 case PART_TYPE_EFI:
422 if (get_partition_info_efi(dev_desc, part, info) == 0) {
423 PRINTF("## Valid EFI partition found ##\n");
424 return 0;
425 }
426 break;
427#endif
428 default:
429 break;
430 }
Gabe Black0c9c8fb2012-10-12 14:26:08 +0000431#endif /* HAVE_BLOCK_DEVICE */
Stephen Warren2f501642012-09-21 12:46:54 +0000432
433 return -1;
434}
Rob Herring99d2c202012-09-21 04:08:17 +0000435
Stephen Warren2023e602012-09-21 09:50:56 +0000436int get_device(const char *ifname, const char *dev_str,
437 block_dev_desc_t **dev_desc)
438{
439 char *ep;
440 int dev;
441
442 dev = simple_strtoul(dev_str, &ep, 16);
443 if (*ep) {
444 printf("** Bad device specification %s %s **\n",
445 ifname, dev_str);
446 return -1;
447 }
448
449 *dev_desc = get_dev(ifname, dev);
450 if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) {
451 printf("** Bad device %s %s **\n", ifname, dev_str);
452 return -1;
453 }
454
455 return dev;
456}
457
Stephen Warren10a37fd2012-09-21 09:50:57 +0000458#define PART_UNSPECIFIED -2
459#define PART_AUTO -1
460#define MAX_SEARCH_PARTITIONS 16
461int get_device_and_partition(const char *ifname, const char *dev_part_str,
Rob Herring99d2c202012-09-21 04:08:17 +0000462 block_dev_desc_t **dev_desc,
Stephen Warren10a37fd2012-09-21 09:50:57 +0000463 disk_partition_t *info, int allow_whole_dev)
Rob Herring99d2c202012-09-21 04:08:17 +0000464{
Stephen Warren10a37fd2012-09-21 09:50:57 +0000465 int ret = -1;
466 const char *part_str;
467 char *dup_str = NULL;
468 const char *dev_str;
Rob Herring99d2c202012-09-21 04:08:17 +0000469 int dev;
Stephen Warren10a37fd2012-09-21 09:50:57 +0000470 char *ep;
471 int p;
472 int part;
473 disk_partition_t tmpinfo;
Rob Herring99d2c202012-09-21 04:08:17 +0000474
Simon Glass92ccc962012-12-26 09:53:35 +0000475 /*
476 * For now, we have a special case for sandbox, since there is no
477 * real block device support.
478 */
479 if (0 == strcmp(ifname, "host")) {
480 *dev_desc = NULL;
481 info->start = info->size = info->blksz = 0;
482 info->bootable = 0;
483 strcpy((char *)info->type, BOOT_PART_TYPE);
484 strcpy((char *)info->name, "Sandbox host");
485#ifdef CONFIG_PARTITION_UUIDS
486 info->uuid[0] = 0;
487#endif
488
489 return 0;
490 }
491
Stephen Warren10a37fd2012-09-21 09:50:57 +0000492 /* If no dev_part_str, use bootdevice environment variable */
Stephen Warrena10973e2012-09-28 05:34:09 +0000493 if (!dev_part_str || !strlen(dev_part_str) ||
494 !strcmp(dev_part_str, "-"))
Stephen Warren10a37fd2012-09-21 09:50:57 +0000495 dev_part_str = getenv("bootdevice");
Rob Herring99d2c202012-09-21 04:08:17 +0000496
Stephen Warren10a37fd2012-09-21 09:50:57 +0000497 /* If still no dev_part_str, it's an error */
498 if (!dev_part_str) {
499 printf("** No device specified **\n");
500 goto cleanup;
Rob Herring99d2c202012-09-21 04:08:17 +0000501 }
502
Stephen Warren10a37fd2012-09-21 09:50:57 +0000503 /* Separate device and partition ID specification */
504 part_str = strchr(dev_part_str, ':');
505 if (part_str) {
506 dup_str = strdup(dev_part_str);
507 dup_str[part_str - dev_part_str] = 0;
508 dev_str = dup_str;
509 part_str++;
510 } else {
511 dev_str = dev_part_str;
512 }
Rob Herring99d2c202012-09-21 04:08:17 +0000513
Stephen Warren10a37fd2012-09-21 09:50:57 +0000514 /* Look up the device */
515 dev = get_device(ifname, dev_str, dev_desc);
516 if (dev < 0)
517 goto cleanup;
518
519 /* Convert partition ID string to number */
520 if (!part_str || !*part_str) {
521 part = PART_UNSPECIFIED;
522 } else if (!strcmp(part_str, "auto")) {
523 part = PART_AUTO;
524 } else {
525 /* Something specified -> use exactly that */
526 part = (int)simple_strtoul(part_str, &ep, 16);
527 /*
528 * Less than whole string converted,
529 * or request for whole device, but caller requires partition.
530 */
531 if (*ep || (part == 0 && !allow_whole_dev)) {
532 printf("** Bad partition specification %s %s **\n",
533 ifname, dev_part_str);
534 goto cleanup;
Rob Herring99d2c202012-09-21 04:08:17 +0000535 }
Rob Herring99d2c202012-09-21 04:08:17 +0000536 }
537
Stephen Warren10a37fd2012-09-21 09:50:57 +0000538 /*
539 * No partition table on device,
540 * or user requested partition 0 (entire device).
541 */
542 if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) ||
543 (part == 0)) {
544 if (!(*dev_desc)->lba) {
545 printf("** Bad device size - %s %s **\n", ifname,
546 dev_str);
547 goto cleanup;
548 }
Rob Herring99d2c202012-09-21 04:08:17 +0000549
Stephen Warren10a37fd2012-09-21 09:50:57 +0000550 /*
551 * If user specified a partition ID other than 0,
552 * or the calling command only accepts partitions,
553 * it's an error.
554 */
555 if ((part > 0) || (!allow_whole_dev)) {
556 printf("** No partition table - %s %s **\n", ifname,
557 dev_str);
558 goto cleanup;
559 }
560
561 info->start = 0;
562 info->size = (*dev_desc)->lba;
563 info->blksz = (*dev_desc)->blksz;
564 info->bootable = 0;
Stephen Warren6ab6a652012-10-10 07:57:51 +0000565 strcpy((char *)info->type, BOOT_PART_TYPE);
566 strcpy((char *)info->name, "Whole Disk");
Stephen Warren10a37fd2012-09-21 09:50:57 +0000567#ifdef CONFIG_PARTITION_UUIDS
568 info->uuid[0] = 0;
569#endif
570
571 ret = 0;
572 goto cleanup;
573 }
574
575 /*
576 * Now there's known to be a partition table,
577 * not specifying a partition means to pick partition 1.
578 */
579 if (part == PART_UNSPECIFIED)
580 part = 1;
581
582 /*
583 * If user didn't specify a partition number, or did specify something
584 * other than "auto", use that partition number directly.
585 */
586 if (part != PART_AUTO) {
587 ret = get_partition_info(*dev_desc, part, info);
588 if (ret) {
589 printf("** Invalid partition %d **\n", part);
590 goto cleanup;
591 }
592 } else {
593 /*
594 * Find the first bootable partition.
595 * If none are bootable, fall back to the first valid partition.
596 */
597 part = 0;
598 for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
599 ret = get_partition_info(*dev_desc, p, info);
600 if (ret)
601 continue;
602
603 /*
604 * First valid partition, or new better partition?
605 * If so, save partition ID.
606 */
607 if (!part || info->bootable)
608 part = p;
609
610 /* Best possible partition? Stop searching. */
611 if (info->bootable)
612 break;
613
614 /*
615 * We now need to search further for best possible.
616 * If we what we just queried was the best so far,
617 * save the info since we over-write it next loop.
618 */
619 if (part == p)
620 tmpinfo = *info;
621 }
622 /* If we found any acceptable partition */
623 if (part) {
624 /*
625 * If we searched all possible partition IDs,
626 * return the first valid partition we found.
627 */
628 if (p == MAX_SEARCH_PARTITIONS + 1)
629 *info = tmpinfo;
Stephen Warren10a37fd2012-09-21 09:50:57 +0000630 } else {
631 printf("** No valid partitions found **\n");
Stephen Warren71bba422012-10-08 07:45:54 +0000632 ret = -1;
Stephen Warren10a37fd2012-09-21 09:50:57 +0000633 goto cleanup;
634 }
Rob Herring99d2c202012-09-21 04:08:17 +0000635 }
636 if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
637 printf("** Invalid partition type \"%.32s\""
638 " (expect \"" BOOT_PART_TYPE "\")\n",
639 info->type);
Stephen Warren10a37fd2012-09-21 09:50:57 +0000640 ret = -1;
641 goto cleanup;
Rob Herring99d2c202012-09-21 04:08:17 +0000642 }
643
Stephen Warren10a37fd2012-09-21 09:50:57 +0000644 ret = part;
645 goto cleanup;
Rob Herring99d2c202012-09-21 04:08:17 +0000646
Stephen Warren10a37fd2012-09-21 09:50:57 +0000647cleanup:
648 free(dup_str);
649 return ret;
Rob Herring99d2c202012-09-21 04:08:17 +0000650}