]> git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_bootm.c
projects / people / ms / u-boot.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'mpc85xx'
[people/ms/u-boot.git] / common / cmd_bootm.c
1 /*
2 * (C) Copyright 2000-2006
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 /*
25 * Boot support
26 */
27 #include <common.h>
28 #include <watchdog.h>
29 #include <command.h>
30 #include <image.h>
31 #include <malloc.h>
32 #include <zlib.h>
33 #include <bzlib.h>
34 #include <environment.h>
35 #include <asm/byteorder.h>
36
37 #ifdef CONFIG_OF_FLAT_TREE
38 #include <ft_build.h>
39 #endif
40
41 DECLARE_GLOBAL_DATA_PTR;
42
43 /*cmd_boot.c*/
44 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
45
46 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
47 #include <rtc.h>
48 #endif
49
50 #ifdef CFG_HUSH_PARSER
51 #include <hush.h>
52 #endif
53
54 #ifdef CONFIG_SHOW_BOOT_PROGRESS
55 # include <status_led.h>
56 # define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
57 #else
58 # define SHOW_BOOT_PROGRESS(arg)
59 #endif
60
61 #ifdef CFG_INIT_RAM_LOCK
62 #include <asm/cache.h>
63 #endif
64
65 #ifdef CONFIG_LOGBUFFER
66 #include <logbuff.h>
67 #endif
68
69 #ifdef CONFIG_HAS_DATAFLASH
70 #include <dataflash.h>
71 #endif
72
73 /*
74 * Some systems (for example LWMON) have very short watchdog periods;
75 * we must make sure to split long operations like memmove() or
76 * crc32() into reasonable chunks.
77 */
78 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
79 # define CHUNKSZ (64 * 1024)
80 #endif
81
82 int gunzip (void *, int, unsigned char *, unsigned long *);
83
84 static void *zalloc(void *, unsigned, unsigned);
85 static void zfree(void *, void *, unsigned);
86
87 #if (CONFIG_COMMANDS & CFG_CMD_IMI)
88 static int image_info (unsigned long addr);
89 #endif
90
91 #if (CONFIG_COMMANDS & CFG_CMD_IMLS)
92 #include <flash.h>
93 extern flash_info_t flash_info[]; /* info for FLASH chips */
94 static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
95 #endif
96
97 static void print_type (image_header_t *hdr);
98
99 #ifdef __I386__
100 image_header_t *fake_header(image_header_t *hdr, void *ptr, int size);
101 #endif
102
103 /*
104 * Continue booting an OS image; caller already has:
105 * - copied image header to global variable `header'
106 * - checked header magic number, checksums (both header & image),
107 * - verified image architecture (PPC) and type (KERNEL or MULTI),
108 * - loaded (first part of) image to header load address,
109 * - disabled interrupts.
110 */
111 typedef void boot_os_Fcn (cmd_tbl_t *cmdtp, int flag,
112 int argc, char *argv[],
113 ulong addr, /* of image to boot */
114 ulong *len_ptr, /* multi-file image length table */
115 int verify); /* getenv("verify")[0] != 'n' */
116
117 #ifdef DEBUG
118 extern int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
119 #endif
120
121 #ifdef CONFIG_PPC
122 static boot_os_Fcn do_bootm_linux;
123 #else
124 extern boot_os_Fcn do_bootm_linux;
125 #endif
126 #ifdef CONFIG_SILENT_CONSOLE
127 static void fixup_silent_linux (void);
128 #endif
129 static boot_os_Fcn do_bootm_netbsd;
130 static boot_os_Fcn do_bootm_rtems;
131 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
132 static boot_os_Fcn do_bootm_vxworks;
133 static boot_os_Fcn do_bootm_qnxelf;
134 int do_bootvx ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] );
135 int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] );
136 #endif /* CFG_CMD_ELF */
137 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
138 static boot_os_Fcn do_bootm_artos;
139 #endif
140 #ifdef CONFIG_LYNXKDI
141 static boot_os_Fcn do_bootm_lynxkdi;
142 extern void lynxkdi_boot( image_header_t * );
143 #endif
144
145 #ifndef CFG_BOOTM_LEN
146 #define CFG_BOOTM_LEN 0x800000 /* use 8MByte as default max gunzip size */
147 #endif
148
149 image_header_t header;
150
151 ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
152
153 int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
154 {
155 ulong iflag;
156 ulong addr;
157 ulong data, len, checksum;
158 ulong *len_ptr;
159 uint unc_len = CFG_BOOTM_LEN;
160 int i, verify;
161 char *name, *s;
162 int (*appl)(int, char *[]);
163 image_header_t *hdr = &header;
164
165 s = getenv ("verify");
166 verify = (s && (*s == 'n')) ? 0 : 1;
167
168 if (argc < 2) {
169 addr = load_addr;
170 } else {
171 addr = simple_strtoul(argv[1], NULL, 16);
172 }
173
174 SHOW_BOOT_PROGRESS (1);
175 printf ("## Booting image at %08lx ...\n", addr);
176
177 /* Copy header so we can blank CRC field for re-calculation */
178 #ifdef CONFIG_HAS_DATAFLASH
179 if (addr_dataflash(addr)){
180 read_dataflash(addr, sizeof(image_header_t), (char *)&header);
181 } else
182 #endif
183 memmove (&header, (char *)addr, sizeof(image_header_t));
184
185 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
186 #ifdef __I386__ /* correct image format not implemented yet - fake it */
187 if (fake_header(hdr, (void*)addr, -1) != NULL) {
188 /* to compensate for the addition below */
189 addr -= sizeof(image_header_t);
190 /* turnof verify,
191 * fake_header() does not fake the data crc
192 */
193 verify = 0;
194 } else
195 #endif /* __I386__ */
196 {
197 puts ("Bad Magic Number\n");
198 SHOW_BOOT_PROGRESS (-1);
199 return 1;
200 }
201 }
202 SHOW_BOOT_PROGRESS (2);
203
204 data = (ulong)&header;
205 len = sizeof(image_header_t);
206
207 checksum = ntohl(hdr->ih_hcrc);
208 hdr->ih_hcrc = 0;
209
210 if (crc32 (0, (uchar *)data, len) != checksum) {
211 puts ("Bad Header Checksum\n");
212 SHOW_BOOT_PROGRESS (-2);
213 return 1;
214 }
215 SHOW_BOOT_PROGRESS (3);
216
217 #ifdef CONFIG_HAS_DATAFLASH
218 if (addr_dataflash(addr)){
219 len = ntohl(hdr->ih_size) + sizeof(image_header_t);
220 read_dataflash(addr, len, (char *)CFG_LOAD_ADDR);
221 addr = CFG_LOAD_ADDR;
222 }
223 #endif
224
225
226 /* for multi-file images we need the data part, too */
227 print_image_hdr ((image_header_t *)addr);
228
229 data = addr + sizeof(image_header_t);
230 len = ntohl(hdr->ih_size);
231
232 if (verify) {
233 puts (" Verifying Checksum ... ");
234 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
235 printf ("Bad Data CRC\n");
236 SHOW_BOOT_PROGRESS (-3);
237 return 1;
238 }
239 puts ("OK\n");
240 }
241 SHOW_BOOT_PROGRESS (4);
242
243 len_ptr = (ulong *)data;
244
245 #if defined(__PPC__)
246 if (hdr->ih_arch != IH_CPU_PPC)
247 #elif defined(__ARM__)
248 if (hdr->ih_arch != IH_CPU_ARM)
249 #elif defined(__I386__)
250 if (hdr->ih_arch != IH_CPU_I386)
251 #elif defined(__mips__)
252 if (hdr->ih_arch != IH_CPU_MIPS)
253 #elif defined(__nios__)
254 if (hdr->ih_arch != IH_CPU_NIOS)
255 #elif defined(__M68K__)
256 if (hdr->ih_arch != IH_CPU_M68K)
257 #elif defined(__microblaze__)
258 if (hdr->ih_arch != IH_CPU_MICROBLAZE)
259 #elif defined(__nios2__)
260 if (hdr->ih_arch != IH_CPU_NIOS2)
261 #elif defined(__blackfin__)
262 if (hdr->ih_arch != IH_CPU_BLACKFIN)
263 #else
264 # error Unknown CPU type
265 #endif
266 {
267 printf ("Unsupported Architecture 0x%x\n", hdr->ih_arch);
268 SHOW_BOOT_PROGRESS (-4);
269 return 1;
270 }
271 SHOW_BOOT_PROGRESS (5);
272
273 switch (hdr->ih_type) {
274 case IH_TYPE_STANDALONE:
275 name = "Standalone Application";
276 /* A second argument overwrites the load address */
277 if (argc > 2) {
278 hdr->ih_load = htonl(simple_strtoul(argv[2], NULL, 16));
279 }
280 break;
281 case IH_TYPE_KERNEL:
282 name = "Kernel Image";
283 break;
284 case IH_TYPE_MULTI:
285 name = "Multi-File Image";
286 len = ntohl(len_ptr[0]);
287 /* OS kernel is always the first image */
288 data += 8; /* kernel_len + terminator */
289 for (i=1; len_ptr[i]; ++i)
290 data += 4;
291 break;
292 default: printf ("Wrong Image Type for %s command\n", cmdtp->name);
293 SHOW_BOOT_PROGRESS (-5);
294 return 1;
295 }
296 SHOW_BOOT_PROGRESS (6);
297
298 /*
299 * We have reached the point of no return: we are going to
300 * overwrite all exception vector code, so we cannot easily
301 * recover from any failures any more...
302 */
303
304 iflag = disable_interrupts();
305
306 #ifdef CONFIG_AMIGAONEG3SE
307 /*
308 * We've possible left the caches enabled during
309 * bios emulation, so turn them off again
310 */
311 icache_disable();
312 invalidate_l1_instruction_cache();
313 flush_data_cache();
314 dcache_disable();
315 #endif
316
317 switch (hdr->ih_comp) {
318 case IH_COMP_NONE:
319 if(ntohl(hdr->ih_load) == addr) {
320 printf (" XIP %s ... ", name);
321 } else {
322 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
323 size_t l = len;
324 void *to = (void *)ntohl(hdr->ih_load);
325 void *from = (void *)data;
326
327 printf (" Loading %s ... ", name);
328
329 while (l > 0) {
330 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
331 WATCHDOG_RESET();
332 memmove (to, from, tail);
333 to += tail;
334 from += tail;
335 l -= tail;
336 }
337 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
338 memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len);
339 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
340 }
341 break;
342 case IH_COMP_GZIP:
343 printf (" Uncompressing %s ... ", name);
344 if (gunzip ((void *)ntohl(hdr->ih_load), unc_len,
345 (uchar *)data, &len) != 0) {
346 puts ("GUNZIP ERROR - must RESET board to recover\n");
347 SHOW_BOOT_PROGRESS (-6);
348 do_reset (cmdtp, flag, argc, argv);
349 }
350 break;
351 #ifdef CONFIG_BZIP2
352 case IH_COMP_BZIP2:
353 printf (" Uncompressing %s ... ", name);
354 /*
355 * If we've got less than 4 MB of malloc() space,
356 * use slower decompression algorithm which requires
357 * at most 2300 KB of memory.
358 */
359 i = BZ2_bzBuffToBuffDecompress ((char*)ntohl(hdr->ih_load),
360 &unc_len, (char *)data, len,
361 CFG_MALLOC_LEN < (4096 * 1024), 0);
362 if (i != BZ_OK) {
363 printf ("BUNZIP2 ERROR %d - must RESET board to recover\n", i);
364 SHOW_BOOT_PROGRESS (-6);
365 udelay(100000);
366 do_reset (cmdtp, flag, argc, argv);
367 }
368 break;
369 #endif /* CONFIG_BZIP2 */
370 default:
371 if (iflag)
372 enable_interrupts();
373 printf ("Unimplemented compression type %d\n", hdr->ih_comp);
374 SHOW_BOOT_PROGRESS (-7);
375 return 1;
376 }
377 puts ("OK\n");
378 SHOW_BOOT_PROGRESS (7);
379
380 switch (hdr->ih_type) {
381 case IH_TYPE_STANDALONE:
382 if (iflag)
383 enable_interrupts();
384
385 /* load (and uncompress), but don't start if "autostart"
386 * is set to "no"
387 */
388 if (((s = getenv("autostart")) != NULL) && (strcmp(s,"no") == 0)) {
389 char buf[32];
390 sprintf(buf, "%lX", len);
391 setenv("filesize", buf);
392 return 0;
393 }
394 appl = (int (*)(int, char *[]))ntohl(hdr->ih_ep);
395 (*appl)(argc-1, &argv[1]);
396 return 0;
397 case IH_TYPE_KERNEL:
398 case IH_TYPE_MULTI:
399 /* handled below */
400 break;
401 default:
402 if (iflag)
403 enable_interrupts();
404 printf ("Can't boot image type %d\n", hdr->ih_type);
405 SHOW_BOOT_PROGRESS (-8);
406 return 1;
407 }
408 SHOW_BOOT_PROGRESS (8);
409
410 switch (hdr->ih_os) {
411 default: /* handled by (original) Linux case */
412 case IH_OS_LINUX:
413 #ifdef CONFIG_SILENT_CONSOLE
414 fixup_silent_linux();
415 #endif
416 do_bootm_linux (cmdtp, flag, argc, argv,
417 addr, len_ptr, verify);
418 break;
419 case IH_OS_NETBSD:
420 do_bootm_netbsd (cmdtp, flag, argc, argv,
421 addr, len_ptr, verify);
422 break;
423
424 #ifdef CONFIG_LYNXKDI
425 case IH_OS_LYNXOS:
426 do_bootm_lynxkdi (cmdtp, flag, argc, argv,
427 addr, len_ptr, verify);
428 break;
429 #endif
430
431 case IH_OS_RTEMS:
432 do_bootm_rtems (cmdtp, flag, argc, argv,
433 addr, len_ptr, verify);
434 break;
435
436 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
437 case IH_OS_VXWORKS:
438 do_bootm_vxworks (cmdtp, flag, argc, argv,
439 addr, len_ptr, verify);
440 break;
441 case IH_OS_QNX:
442 do_bootm_qnxelf (cmdtp, flag, argc, argv,
443 addr, len_ptr, verify);
444 break;
445 #endif /* CFG_CMD_ELF */
446 #ifdef CONFIG_ARTOS
447 case IH_OS_ARTOS:
448 do_bootm_artos (cmdtp, flag, argc, argv,
449 addr, len_ptr, verify);
450 break;
451 #endif
452 }
453
454 SHOW_BOOT_PROGRESS (-9);
455 #ifdef DEBUG
456 puts ("\n## Control returned to monitor - resetting...\n");
457 do_reset (cmdtp, flag, argc, argv);
458 #endif
459 return 1;
460 }
461
462 U_BOOT_CMD(
463 bootm, CFG_MAXARGS, 1, do_bootm,
464 "bootm - boot application image from memory\n",
465 "[addr [arg ...]]\n - boot application image stored in memory\n"
466 "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
467 "\t'arg' can be the address of an initrd image\n"
468 #ifdef CONFIG_OF_FLAT_TREE
469 "\tWhen booting a Linux kernel which requires a flat device-tree\n"
470 "\ta third argument is required which is the address of the of the\n"
471 "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
472 "\tuse a '-' for the second argument. If you do not pass a third\n"
473 "\ta bd_info struct will be passed instead\n"
474 #endif
475 );
476
477 #ifdef CONFIG_SILENT_CONSOLE
478 static void
479 fixup_silent_linux ()
480 {
481 char buf[256], *start, *end;
482 char *cmdline = getenv ("bootargs");
483
484 /* Only fix cmdline when requested */
485 if (!(gd->flags & GD_FLG_SILENT))
486 return;
487
488 debug ("before silent fix-up: %s\n", cmdline);
489 if (cmdline) {
490 if ((start = strstr (cmdline, "console=")) != NULL) {
491 end = strchr (start, ' ');
492 strncpy (buf, cmdline, (start - cmdline + 8));
493 if (end)
494 strcpy (buf + (start - cmdline + 8), end);
495 else
496 buf[start - cmdline + 8] = '\0';
497 } else {
498 strcpy (buf, cmdline);
499 strcat (buf, " console=");
500 }
501 } else {
502 strcpy (buf, "console=");
503 }
504
505 setenv ("bootargs", buf);
506 debug ("after silent fix-up: %s\n", buf);
507 }
508 #endif /* CONFIG_SILENT_CONSOLE */
509
510 #ifdef CONFIG_PPC
511 static void
512 do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
513 int argc, char *argv[],
514 ulong addr,
515 ulong *len_ptr,
516 int verify)
517 {
518 ulong sp;
519 ulong len, checksum;
520 ulong initrd_start, initrd_end;
521 ulong cmd_start, cmd_end;
522 ulong initrd_high;
523 ulong data;
524 int initrd_copy_to_ram = 1;
525 char *cmdline;
526 char *s;
527 bd_t *kbd;
528 void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
529 image_header_t *hdr = &header;
530 #ifdef CONFIG_OF_FLAT_TREE
531 char *of_flat_tree;
532 #endif
533
534 if ((s = getenv ("initrd_high")) != NULL) {
535 /* a value of "no" or a similar string will act like 0,
536 * turning the "load high" feature off. This is intentional.
537 */
538 initrd_high = simple_strtoul(s, NULL, 16);
539 if (initrd_high == ~0)
540 initrd_copy_to_ram = 0;
541 } else { /* not set, no restrictions to load high */
542 initrd_high = ~0;
543 }
544
545 #ifdef CONFIG_LOGBUFFER
546 kbd=gd->bd;
547 /* Prevent initrd from overwriting logbuffer */
548 if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
549 initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
550 debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
551 #endif
552
553 /*
554 * Booting a (Linux) kernel image
555 *
556 * Allocate space for command line and board info - the
557 * address should be as high as possible within the reach of
558 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
559 * memory, which means far enough below the current stack
560 * pointer.
561 */
562
563 asm( "mr %0,1": "=r"(sp) : );
564
565 debug ("## Current stack ends at 0x%08lX ", sp);
566
567 sp -= 2048; /* just to be sure */
568 if (sp > CFG_BOOTMAPSZ)
569 sp = CFG_BOOTMAPSZ;
570 sp &= ~0xF;
571
572 debug ("=> set upper limit to 0x%08lX\n", sp);
573
574 cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
575 kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
576
577 if ((s = getenv("bootargs")) == NULL)
578 s = "";
579
580 strcpy (cmdline, s);
581
582 cmd_start = (ulong)&cmdline[0];
583 cmd_end = cmd_start + strlen(cmdline);
584
585 *kbd = *(gd->bd);
586
587 #ifdef DEBUG
588 printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
589
590 do_bdinfo (NULL, 0, 0, NULL);
591 #endif
592
593 if ((s = getenv ("clocks_in_mhz")) != NULL) {
594 /* convert all clock information to MHz */
595 kbd->bi_intfreq /= 1000000L;
596 kbd->bi_busfreq /= 1000000L;
597 #if defined(CONFIG_MPC8220)
598 kbd->bi_inpfreq /= 1000000L;
599 kbd->bi_pcifreq /= 1000000L;
600 kbd->bi_pevfreq /= 1000000L;
601 kbd->bi_flbfreq /= 1000000L;
602 kbd->bi_vcofreq /= 1000000L;
603 #endif
604 #if defined(CONFIG_CPM2)
605 kbd->bi_cpmfreq /= 1000000L;
606 kbd->bi_brgfreq /= 1000000L;
607 kbd->bi_sccfreq /= 1000000L;
608 kbd->bi_vco /= 1000000L;
609 #endif
610 #if defined(CONFIG_MPC5xxx)
611 kbd->bi_ipbfreq /= 1000000L;
612 kbd->bi_pcifreq /= 1000000L;
613 #endif /* CONFIG_MPC5xxx */
614 }
615
616 kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong)) ntohl(hdr->ih_ep);
617
618 /*
619 * Check if there is an initrd image
620 */
621
622 #ifdef CONFIG_OF_FLAT_TREE
623 /* Look for a '-' which indicates to ignore the ramdisk argument */
624 if (argc >= 3 && strcmp(argv[2], "-") == 0) {
625 debug ("Skipping initrd\n");
626 data = 0;
627 }
628 else
629 #endif
630 if (argc >= 3) {
631 debug ("Not skipping initrd\n");
632 SHOW_BOOT_PROGRESS (9);
633
634 addr = simple_strtoul(argv[2], NULL, 16);
635
636 printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
637
638 /* Copy header so we can blank CRC field for re-calculation */
639 memmove (&header, (char *)addr, sizeof(image_header_t));
640
641 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
642 puts ("Bad Magic Number\n");
643 SHOW_BOOT_PROGRESS (-10);
644 do_reset (cmdtp, flag, argc, argv);
645 }
646
647 data = (ulong)&header;
648 len = sizeof(image_header_t);
649
650 checksum = ntohl(hdr->ih_hcrc);
651 hdr->ih_hcrc = 0;
652
653 if (crc32 (0, (uchar *)data, len) != checksum) {
654 puts ("Bad Header Checksum\n");
655 SHOW_BOOT_PROGRESS (-11);
656 do_reset (cmdtp, flag, argc, argv);
657 }
658
659 SHOW_BOOT_PROGRESS (10);
660
661 print_image_hdr (hdr);
662
663 data = addr + sizeof(image_header_t);
664 len = ntohl(hdr->ih_size);
665
666 if (verify) {
667 ulong csum = 0;
668 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
669 ulong cdata = data, edata = cdata + len;
670 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
671
672 puts (" Verifying Checksum ... ");
673
674 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
675
676 while (cdata < edata) {
677 ulong chunk = edata - cdata;
678
679 if (chunk > CHUNKSZ)
680 chunk = CHUNKSZ;
681 csum = crc32 (csum, (uchar *)cdata, chunk);
682 cdata += chunk;
683
684 WATCHDOG_RESET();
685 }
686 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
687 csum = crc32 (0, (uchar *)data, len);
688 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
689
690 if (csum != ntohl(hdr->ih_dcrc)) {
691 puts ("Bad Data CRC\n");
692 SHOW_BOOT_PROGRESS (-12);
693 do_reset (cmdtp, flag, argc, argv);
694 }
695 puts ("OK\n");
696 }
697
698 SHOW_BOOT_PROGRESS (11);
699
700 if ((hdr->ih_os != IH_OS_LINUX) ||
701 (hdr->ih_arch != IH_CPU_PPC) ||
702 (hdr->ih_type != IH_TYPE_RAMDISK) ) {
703 puts ("No Linux PPC Ramdisk Image\n");
704 SHOW_BOOT_PROGRESS (-13);
705 do_reset (cmdtp, flag, argc, argv);
706 }
707
708 /*
709 * Now check if we have a multifile image
710 */
711 } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
712 u_long tail = ntohl(len_ptr[0]) % 4;
713 int i;
714
715 SHOW_BOOT_PROGRESS (13);
716
717 /* skip kernel length and terminator */
718 data = (ulong)(&len_ptr[2]);
719 /* skip any additional image length fields */
720 for (i=1; len_ptr[i]; ++i)
721 data += 4;
722 /* add kernel length, and align */
723 data += ntohl(len_ptr[0]);
724 if (tail) {
725 data += 4 - tail;
726 }
727
728 len = ntohl(len_ptr[1]);
729
730 } else {
731 /*
732 * no initrd image
733 */
734 SHOW_BOOT_PROGRESS (14);
735
736 len = data = 0;
737 }
738
739 #ifdef CONFIG_OF_FLAT_TREE
740 if (argc >= 3)
741 {
742 of_flat_tree = (char *) simple_strtoul(argv[3], NULL, 16);
743 printf ("Booting using flat device tree at 0x%x\n",
744 of_flat_tree);
745 }
746 #endif
747
748 if (!data) {
749 debug ("No initrd\n");
750 }
751
752 if (data) {
753 if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
754 initrd_start = data;
755 initrd_end = initrd_start + len;
756 } else {
757 initrd_start = (ulong)kbd - len;
758 initrd_start &= ~(4096 - 1); /* align on page */
759
760 if (initrd_high) {
761 ulong nsp;
762
763 /*
764 * the inital ramdisk does not need to be within
765 * CFG_BOOTMAPSZ as it is not accessed until after
766 * the mm system is initialised.
767 *
768 * do the stack bottom calculation again and see if
769 * the initrd will fit just below the monitor stack
770 * bottom without overwriting the area allocated
771 * above for command line args and board info.
772 */
773 asm( "mr %0,1": "=r"(nsp) : );
774 nsp -= 2048; /* just to be sure */
775 nsp &= ~0xF;
776 if (nsp > initrd_high) /* limit as specified */
777 nsp = initrd_high;
778 nsp -= len;
779 nsp &= ~(4096 - 1); /* align on page */
780 if (nsp >= sp)
781 initrd_start = nsp;
782 }
783
784 SHOW_BOOT_PROGRESS (12);
785
786 debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
787 data, data + len - 1, len, len);
788
789 initrd_end = initrd_start + len;
790 printf (" Loading Ramdisk to %08lx, end %08lx ... ",
791 initrd_start, initrd_end);
792 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
793 {
794 size_t l = len;
795 void *to = (void *)initrd_start;
796 void *from = (void *)data;
797
798 while (l > 0) {
799 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
800 WATCHDOG_RESET();
801 memmove (to, from, tail);
802 to += tail;
803 from += tail;
804 l -= tail;
805 }
806 }
807 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
808 memmove ((void *)initrd_start, (void *)data, len);
809 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
810 puts ("OK\n");
811 }
812 } else {
813 initrd_start = 0;
814 initrd_end = 0;
815 }
816
817 debug ("## Transferring control to Linux (at address %08lx) ...\n",
818 (ulong)kernel);
819
820 SHOW_BOOT_PROGRESS (15);
821
822 #ifndef CONFIG_OF_FLAT_TREE
823
824 #if defined(CFG_INIT_RAM_LOCK) && (!defined(CONFIG_E500) || !defined(CONFIG_MPC86xx))
825 unlock_ram_in_cache();
826 #endif
827
828 /*
829 * Linux Kernel Parameters:
830 * r3: ptr to board info data
831 * r4: initrd_start or 0 if no initrd
832 * r5: initrd_end - unused if r4 is 0
833 * r6: Start of command line string
834 * r7: End of command line string
835 */
836 (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
837
838 #else
839 ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
840 /* ft_dump_blob(of_flat_tree); */
841
842 #if defined(CFG_INIT_RAM_LOCK) && (!defined(CONFIG_E500)||!defined(CONFIG_MPC86xx))
843 unlock_ram_in_cache();
844 #endif
845 /*
846 * Linux Kernel Parameters:
847 * r3: ptr to OF flat tree, followed by the board info data
848 * r4: physical pointer to the kernel itself
849 * r5: NULL
850 * r6: NULL
851 * r7: NULL
852 */
853 if (getenv("disable_of") != NULL)
854 (*kernel) ((bd_t *)of_flat_tree, initrd_start, initrd_end,
855 cmd_start, cmd_end);
856 else
857 (*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
858
859 #endif
860 }
861 #endif /* CONFIG_PPC */
862
863 static void
864 do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
865 int argc, char *argv[],
866 ulong addr,
867 ulong *len_ptr,
868 int verify)
869 {
870 image_header_t *hdr = &header;
871
872 void (*loader)(bd_t *, image_header_t *, char *, char *);
873 image_header_t *img_addr;
874 char *consdev;
875 char *cmdline;
876
877
878 /*
879 * Booting a (NetBSD) kernel image
880 *
881 * This process is pretty similar to a standalone application:
882 * The (first part of an multi-) image must be a stage-2 loader,
883 * which in turn is responsible for loading & invoking the actual
884 * kernel. The only differences are the parameters being passed:
885 * besides the board info strucure, the loader expects a command
886 * line, the name of the console device, and (optionally) the
887 * address of the original image header.
888 */
889
890 img_addr = 0;
891 if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]))
892 img_addr = (image_header_t *) addr;
893
894
895 consdev = "";
896 #if defined (CONFIG_8xx_CONS_SMC1)
897 consdev = "smc1";
898 #elif defined (CONFIG_8xx_CONS_SMC2)
899 consdev = "smc2";
900 #elif defined (CONFIG_8xx_CONS_SCC2)
901 consdev = "scc2";
902 #elif defined (CONFIG_8xx_CONS_SCC3)
903 consdev = "scc3";
904 #endif
905
906 if (argc > 2) {
907 ulong len;
908 int i;
909
910 for (i=2, len=0 ; i<argc ; i+=1)
911 len += strlen (argv[i]) + 1;
912 cmdline = malloc (len);
913
914 for (i=2, len=0 ; i<argc ; i+=1) {
915 if (i > 2)
916 cmdline[len++] = ' ';
917 strcpy (&cmdline[len], argv[i]);
918 len += strlen (argv[i]);
919 }
920 } else if ((cmdline = getenv("bootargs")) == NULL) {
921 cmdline = "";
922 }
923
924 loader = (void (*)(bd_t *, image_header_t *, char *, char *)) ntohl(hdr->ih_ep);
925
926 printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
927 (ulong)loader);
928
929 SHOW_BOOT_PROGRESS (15);
930
931 /*
932 * NetBSD Stage-2 Loader Parameters:
933 * r3: ptr to board info data
934 * r4: image address
935 * r5: console device
936 * r6: boot args string
937 */
938 (*loader) (gd->bd, img_addr, consdev, cmdline);
939 }
940
941 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
942
943 /* Function that returns a character from the environment */
944 extern uchar (*env_get_char)(int);
945
946 static void
947 do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
948 int argc, char *argv[],
949 ulong addr,
950 ulong *len_ptr,
951 int verify)
952 {
953 ulong top;
954 char *s, *cmdline;
955 char **fwenv, **ss;
956 int i, j, nxt, len, envno, envsz;
957 bd_t *kbd;
958 void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
959 image_header_t *hdr = &header;
960
961 /*
962 * Booting an ARTOS kernel image + application
963 */
964
965 /* this used to be the top of memory, but was wrong... */
966 #ifdef CONFIG_PPC
967 /* get stack pointer */
968 asm volatile ("mr %0,1" : "=r"(top) );
969 #endif
970 debug ("## Current stack ends at 0x%08lX ", top);
971
972 top -= 2048; /* just to be sure */
973 if (top > CFG_BOOTMAPSZ)
974 top = CFG_BOOTMAPSZ;
975 top &= ~0xF;
976
977 debug ("=> set upper limit to 0x%08lX\n", top);
978
979 /* first check the artos specific boot args, then the linux args*/
980 if ((s = getenv("abootargs")) == NULL && (s = getenv("bootargs")) == NULL)
981 s = "";
982
983 /* get length of cmdline, and place it */
984 len = strlen(s);
985 top = (top - (len + 1)) & ~0xF;
986 cmdline = (char *)top;
987 debug ("## cmdline at 0x%08lX ", top);
988 strcpy(cmdline, s);
989
990 /* copy bdinfo */
991 top = (top - sizeof(bd_t)) & ~0xF;
992 debug ("## bd at 0x%08lX ", top);
993 kbd = (bd_t *)top;
994 memcpy(kbd, gd->bd, sizeof(bd_t));
995
996 /* first find number of env entries, and their size */
997 envno = 0;
998 envsz = 0;
999 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
1000 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
1001 ;
1002 envno++;
1003 envsz += (nxt - i) + 1; /* plus trailing zero */
1004 }
1005 envno++; /* plus the terminating zero */
1006 debug ("## %u envvars total size %u ", envno, envsz);
1007
1008 top = (top - sizeof(char **)*envno) & ~0xF;
1009 fwenv = (char **)top;
1010 debug ("## fwenv at 0x%08lX ", top);
1011
1012 top = (top - envsz) & ~0xF;
1013 s = (char *)top;
1014 ss = fwenv;
1015
1016 /* now copy them */
1017 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
1018 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
1019 ;
1020 *ss++ = s;
1021 for (j = i; j < nxt; ++j)
1022 *s++ = env_get_char(j);
1023 *s++ = '\0';
1024 }
1025 *ss++ = NULL; /* terminate */
1026
1027 entry = (void (*)(bd_t *, char *, char **, ulong))ntohl(hdr->ih_ep);
1028 (*entry)(kbd, cmdline, fwenv, top);
1029 }
1030 #endif
1031
1032
1033 #if (CONFIG_COMMANDS & CFG_CMD_BOOTD)
1034 int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1035 {
1036 int rcode = 0;
1037 #ifndef CFG_HUSH_PARSER
1038 if (run_command (getenv ("bootcmd"), flag) < 0) rcode = 1;
1039 #else
1040 if (parse_string_outer(getenv("bootcmd"),
1041 FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0 ) rcode = 1;
1042 #endif
1043 return rcode;
1044 }
1045
1046 U_BOOT_CMD(
1047 boot, 1, 1, do_bootd,
1048 "boot - boot default, i.e., run 'bootcmd'\n",
1049 NULL
1050 );
1051
1052 /* keep old command name "bootd" for backward compatibility */
1053 U_BOOT_CMD(
1054 bootd, 1, 1, do_bootd,
1055 "bootd - boot default, i.e., run 'bootcmd'\n",
1056 NULL
1057 );
1058
1059 #endif
1060
1061 #if (CONFIG_COMMANDS & CFG_CMD_IMI)
1062 int do_iminfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1063 {
1064 int arg;
1065 ulong addr;
1066 int rcode=0;
1067
1068 if (argc < 2) {
1069 return image_info (load_addr);
1070 }
1071
1072 for (arg=1; arg <argc; ++arg) {
1073 addr = simple_strtoul(argv[arg], NULL, 16);
1074 if (image_info (addr) != 0) rcode = 1;
1075 }
1076 return rcode;
1077 }
1078
1079 static int image_info (ulong addr)
1080 {
1081 ulong data, len, checksum;
1082 image_header_t *hdr = &header;
1083
1084 printf ("\n## Checking Image at %08lx ...\n", addr);
1085
1086 /* Copy header so we can blank CRC field for re-calculation */
1087 memmove (&header, (char *)addr, sizeof(image_header_t));
1088
1089 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
1090 puts (" Bad Magic Number\n");
1091 return 1;
1092 }
1093
1094 data = (ulong)&header;
1095 len = sizeof(image_header_t);
1096
1097 checksum = ntohl(hdr->ih_hcrc);
1098 hdr->ih_hcrc = 0;
1099
1100 if (crc32 (0, (uchar *)data, len) != checksum) {
1101 puts (" Bad Header Checksum\n");
1102 return 1;
1103 }
1104
1105 /* for multi-file images we need the data part, too */
1106 print_image_hdr ((image_header_t *)addr);
1107
1108 data = addr + sizeof(image_header_t);
1109 len = ntohl(hdr->ih_size);
1110
1111 puts (" Verifying Checksum ... ");
1112 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
1113 puts (" Bad Data CRC\n");
1114 return 1;
1115 }
1116 puts ("OK\n");
1117 return 0;
1118 }
1119
1120 U_BOOT_CMD(
1121 iminfo, CFG_MAXARGS, 1, do_iminfo,
1122 "iminfo - print header information for application image\n",
1123 "addr [addr ...]\n"
1124 " - print header information for application image starting at\n"
1125 " address 'addr' in memory; this includes verification of the\n"
1126 " image contents (magic number, header and payload checksums)\n"
1127 );
1128
1129 #endif /* CFG_CMD_IMI */
1130
1131 #if (CONFIG_COMMANDS & CFG_CMD_IMLS)
1132 /*-----------------------------------------------------------------------
1133 * List all images found in flash.
1134 */
1135 int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1136 {
1137 flash_info_t *info;
1138 int i, j;
1139 image_header_t *hdr;
1140 ulong data, len, checksum;
1141
1142 for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) {
1143 if (info->flash_id == FLASH_UNKNOWN)
1144 goto next_bank;
1145 for (j=0; j<info->sector_count; ++j) {
1146
1147 if (!(hdr=(image_header_t *)info->start[j]) ||
1148 (ntohl(hdr->ih_magic) != IH_MAGIC))
1149 goto next_sector;
1150
1151 /* Copy header so we can blank CRC field for re-calculation */
1152 memmove (&header, (char *)hdr, sizeof(image_header_t));
1153
1154 checksum = ntohl(header.ih_hcrc);
1155 header.ih_hcrc = 0;
1156
1157 if (crc32 (0, (uchar *)&header, sizeof(image_header_t))
1158 != checksum)
1159 goto next_sector;
1160
1161 printf ("Image at %08lX:\n", (ulong)hdr);
1162 print_image_hdr( hdr );
1163
1164 data = (ulong)hdr + sizeof(image_header_t);
1165 len = ntohl(hdr->ih_size);
1166
1167 puts (" Verifying Checksum ... ");
1168 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
1169 puts (" Bad Data CRC\n");
1170 }
1171 puts ("OK\n");
1172 next_sector: ;
1173 }
1174 next_bank: ;
1175 }
1176
1177 return (0);
1178 }
1179
1180 U_BOOT_CMD(
1181 imls, 1, 1, do_imls,
1182 "imls - list all images found in flash\n",
1183 "\n"
1184 " - Prints information about all images found at sector\n"
1185 " boundaries in flash.\n"
1186 );
1187 #endif /* CFG_CMD_IMLS */
1188
1189 void
1190 print_image_hdr (image_header_t *hdr)
1191 {
1192 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
1193 time_t timestamp = (time_t)ntohl(hdr->ih_time);
1194 struct rtc_time tm;
1195 #endif
1196
1197 printf (" Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
1198 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
1199 to_tm (timestamp, &tm);
1200 printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
1201 tm.tm_year, tm.tm_mon, tm.tm_mday,
1202 tm.tm_hour, tm.tm_min, tm.tm_sec);
1203 #endif /* CFG_CMD_DATE, CONFIG_TIMESTAMP */
1204 puts (" Image Type: "); print_type(hdr);
1205 printf ("\n Data Size: %d Bytes = ", ntohl(hdr->ih_size));
1206 print_size (ntohl(hdr->ih_size), "\n");
1207 printf (" Load Address: %08x\n"
1208 " Entry Point: %08x\n",
1209 ntohl(hdr->ih_load), ntohl(hdr->ih_ep));
1210
1211 if (hdr->ih_type == IH_TYPE_MULTI) {
1212 int i;
1213 ulong len;
1214 ulong *len_ptr = (ulong *)((ulong)hdr + sizeof(image_header_t));
1215
1216 puts (" Contents:\n");
1217 for (i=0; (len = ntohl(*len_ptr)); ++i, ++len_ptr) {
1218 printf (" Image %d: %8ld Bytes = ", i, len);
1219 print_size (len, "\n");
1220 }
1221 }
1222 }
1223
1224
1225 static void
1226 print_type (image_header_t *hdr)
1227 {
1228 char *os, *arch, *type, *comp;
1229
1230 switch (hdr->ih_os) {
1231 case IH_OS_INVALID: os = "Invalid OS"; break;
1232 case IH_OS_NETBSD: os = "NetBSD"; break;
1233 case IH_OS_LINUX: os = "Linux"; break;
1234 case IH_OS_VXWORKS: os = "VxWorks"; break;
1235 case IH_OS_QNX: os = "QNX"; break;
1236 case IH_OS_U_BOOT: os = "U-Boot"; break;
1237 case IH_OS_RTEMS: os = "RTEMS"; break;
1238 #ifdef CONFIG_ARTOS
1239 case IH_OS_ARTOS: os = "ARTOS"; break;
1240 #endif
1241 #ifdef CONFIG_LYNXKDI
1242 case IH_OS_LYNXOS: os = "LynxOS"; break;
1243 #endif
1244 default: os = "Unknown OS"; break;
1245 }
1246
1247 switch (hdr->ih_arch) {
1248 case IH_CPU_INVALID: arch = "Invalid CPU"; break;
1249 case IH_CPU_ALPHA: arch = "Alpha"; break;
1250 case IH_CPU_ARM: arch = "ARM"; break;
1251 case IH_CPU_I386: arch = "Intel x86"; break;
1252 case IH_CPU_IA64: arch = "IA64"; break;
1253 case IH_CPU_MIPS: arch = "MIPS"; break;
1254 case IH_CPU_MIPS64: arch = "MIPS 64 Bit"; break;
1255 case IH_CPU_PPC: arch = "PowerPC"; break;
1256 case IH_CPU_S390: arch = "IBM S390"; break;
1257 case IH_CPU_SH: arch = "SuperH"; break;
1258 case IH_CPU_SPARC: arch = "SPARC"; break;
1259 case IH_CPU_SPARC64: arch = "SPARC 64 Bit"; break;
1260 case IH_CPU_M68K: arch = "M68K"; break;
1261 case IH_CPU_MICROBLAZE: arch = "Microblaze"; break;
1262 case IH_CPU_NIOS: arch = "Nios"; break;
1263 case IH_CPU_NIOS2: arch = "Nios-II"; break;
1264 default: arch = "Unknown Architecture"; break;
1265 }
1266
1267 switch (hdr->ih_type) {
1268 case IH_TYPE_INVALID: type = "Invalid Image"; break;
1269 case IH_TYPE_STANDALONE:type = "Standalone Program"; break;
1270 case IH_TYPE_KERNEL: type = "Kernel Image"; break;
1271 case IH_TYPE_RAMDISK: type = "RAMDisk Image"; break;
1272 case IH_TYPE_MULTI: type = "Multi-File Image"; break;
1273 case IH_TYPE_FIRMWARE: type = "Firmware"; break;
1274 case IH_TYPE_SCRIPT: type = "Script"; break;
1275 default: type = "Unknown Image"; break;
1276 }
1277
1278 switch (hdr->ih_comp) {
1279 case IH_COMP_NONE: comp = "uncompressed"; break;
1280 case IH_COMP_GZIP: comp = "gzip compressed"; break;
1281 case IH_COMP_BZIP2: comp = "bzip2 compressed"; break;
1282 default: comp = "unknown compression"; break;
1283 }
1284
1285 printf ("%s %s %s (%s)", arch, os, type, comp);
1286 }
1287
1288 #define ZALLOC_ALIGNMENT 16
1289
1290 static void *zalloc(void *x, unsigned items, unsigned size)
1291 {
1292 void *p;
1293
1294 size *= items;
1295 size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
1296
1297 p = malloc (size);
1298
1299 return (p);
1300 }
1301
1302 static void zfree(void *x, void *addr, unsigned nb)
1303 {
1304 free (addr);
1305 }
1306
1307 #define HEAD_CRC 2
1308 #define EXTRA_FIELD 4
1309 #define ORIG_NAME 8
1310 #define COMMENT 0x10
1311 #define RESERVED 0xe0
1312
1313 #define DEFLATED 8
1314
1315 int gunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp)
1316 {
1317 z_stream s;
1318 int r, i, flags;
1319
1320 /* skip header */
1321 i = 10;
1322 flags = src[3];
1323 if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
1324 puts ("Error: Bad gzipped data\n");
1325 return (-1);
1326 }
1327 if ((flags & EXTRA_FIELD) != 0)
1328 i = 12 + src[10] + (src[11] << 8);
1329 if ((flags & ORIG_NAME) != 0)
1330 while (src[i++] != 0)
1331 ;
1332 if ((flags & COMMENT) != 0)
1333 while (src[i++] != 0)
1334 ;
1335 if ((flags & HEAD_CRC) != 0)
1336 i += 2;
1337 if (i >= *lenp) {
1338 puts ("Error: gunzip out of data in header\n");
1339 return (-1);
1340 }
1341
1342 s.zalloc = zalloc;
1343 s.zfree = zfree;
1344 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
1345 s.outcb = (cb_func)WATCHDOG_RESET;
1346 #else
1347 s.outcb = Z_NULL;
1348 #endif /* CONFIG_HW_WATCHDOG */
1349
1350 r = inflateInit2(&s, -MAX_WBITS);
1351 if (r != Z_OK) {
1352 printf ("Error: inflateInit2() returned %d\n", r);
1353 return (-1);
1354 }
1355 s.next_in = src + i;
1356 s.avail_in = *lenp - i;
1357 s.next_out = dst;
1358 s.avail_out = dstlen;
1359 r = inflate(&s, Z_FINISH);
1360 if (r != Z_OK && r != Z_STREAM_END) {
1361 printf ("Error: inflate() returned %d\n", r);
1362 return (-1);
1363 }
1364 *lenp = s.next_out - (unsigned char *) dst;
1365 inflateEnd(&s);
1366
1367 return (0);
1368 }
1369
1370 #ifdef CONFIG_BZIP2
1371 void bz_internal_error(int errcode)
1372 {
1373 printf ("BZIP2 internal error %d\n", errcode);
1374 }
1375 #endif /* CONFIG_BZIP2 */
1376
1377 static void
1378 do_bootm_rtems (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1379 ulong addr, ulong *len_ptr, int verify)
1380 {
1381 image_header_t *hdr = &header;
1382 void (*entry_point)(bd_t *);
1383
1384 entry_point = (void (*)(bd_t *)) ntohl(hdr->ih_ep);
1385
1386 printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
1387 (ulong)entry_point);
1388
1389 SHOW_BOOT_PROGRESS (15);
1390
1391 /*
1392 * RTEMS Parameters:
1393 * r3: ptr to board info data
1394 */
1395
1396 (*entry_point ) ( gd->bd );
1397 }
1398
1399 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
1400 static void
1401 do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1402 ulong addr, ulong *len_ptr, int verify)
1403 {
1404 image_header_t *hdr = &header;
1405 char str[80];
1406
1407 sprintf(str, "%x", ntohl(hdr->ih_ep)); /* write entry-point into string */
1408 setenv("loadaddr", str);
1409 do_bootvx(cmdtp, 0, 0, NULL);
1410 }
1411
1412 static void
1413 do_bootm_qnxelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1414 ulong addr, ulong *len_ptr, int verify)
1415 {
1416 image_header_t *hdr = &header;
1417 char *local_args[2];
1418 char str[16];
1419
1420 sprintf(str, "%x", ntohl(hdr->ih_ep)); /* write entry-point into string */
1421 local_args[0] = argv[0];
1422 local_args[1] = str; /* and provide it via the arguments */
1423 do_bootelf(cmdtp, 0, 2, local_args);
1424 }
1425 #endif /* CFG_CMD_ELF */
1426
1427 #ifdef CONFIG_LYNXKDI
1428 static void
1429 do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag,
1430 int argc, char *argv[],
1431 ulong addr,
1432 ulong *len_ptr,
1433 int verify)
1434 {
1435 lynxkdi_boot( &header );
1436 }
1437
1438 #endif /* CONFIG_LYNXKDI */
"Das U-Boot" Source Tree