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* Patch by Scott McNutt, 21 Jul 2003:
[people/ms/u-boot.git] / common / cmd_bootm.c
1 /*
2 * (C) Copyright 2000-2002
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 <environment.h>
34 #include <asm/byteorder.h>
35
36 /*cmd_boot.c*/
37 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
38
39 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
40 #include <rtc.h>
41 #endif
42
43 #ifdef CFG_HUSH_PARSER
44 #include <hush.h>
45 #endif
46
47 #ifdef CONFIG_SHOW_BOOT_PROGRESS
48 # include <status_led.h>
49 # define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
50 #else
51 # define SHOW_BOOT_PROGRESS(arg)
52 #endif
53
54 #ifdef CFG_INIT_RAM_LOCK
55 #include <asm/cache.h>
56 #endif
57
58 #ifdef CONFIG_LOGBUFFER
59 #include <logbuff.h>
60 #endif
61
62 #ifdef CONFIG_HAS_DATAFLASH
63 #include <dataflash.h>
64 #endif
65
66 /*
67 * Some systems (for example LWMON) have very short watchdog periods;
68 * we must make sure to split long operations like memmove() or
69 * crc32() into reasonable chunks.
70 */
71 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
72 # define CHUNKSZ (64 * 1024)
73 #endif
74
75 int gunzip (void *, int, unsigned char *, int *);
76
77 static void *zalloc(void *, unsigned, unsigned);
78 static void zfree(void *, void *, unsigned);
79
80 #if (CONFIG_COMMANDS & CFG_CMD_IMI)
81 static int image_info (unsigned long addr);
82 #endif
83
84 #if (CONFIG_COMMANDS & CFG_CMD_IMLS)
85 #include <flash.h>
86 extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
87 static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
88 #endif
89
90 static void print_type (image_header_t *hdr);
91
92 #ifdef __I386__
93 image_header_t *fake_header(image_header_t *hdr, void *ptr, int size);
94 #endif
95
96 /*
97 * Continue booting an OS image; caller already has:
98 * - copied image header to global variable `header'
99 * - checked header magic number, checksums (both header & image),
100 * - verified image architecture (PPC) and type (KERNEL or MULTI),
101 * - loaded (first part of) image to header load address,
102 * - disabled interrupts.
103 */
104 typedef void boot_os_Fcn (cmd_tbl_t *cmdtp, int flag,
105 int argc, char *argv[],
106 ulong addr, /* of image to boot */
107 ulong *len_ptr, /* multi-file image length table */
108 int verify); /* getenv("verify")[0] != 'n' */
109
110 #ifdef DEBUG
111 extern int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
112 #endif
113
114 #ifdef CONFIG_PPC
115 static boot_os_Fcn do_bootm_linux;
116 #else
117 extern boot_os_Fcn do_bootm_linux;
118 #endif
119 static boot_os_Fcn do_bootm_netbsd;
120 static boot_os_Fcn do_bootm_rtems;
121 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
122 static boot_os_Fcn do_bootm_vxworks;
123 static boot_os_Fcn do_bootm_qnxelf;
124 int do_bootvx ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] );
125 int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] );
126 #endif /* CFG_CMD_ELF */
127 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
128 static boot_os_Fcn do_bootm_artos;
129 #endif
130 #ifdef CONFIG_LYNXKDI
131 static boot_os_Fcn do_bootm_lynxkdi;
132 extern void lynxkdi_boot( image_header_t * );
133 #endif
134
135 image_header_t header;
136
137 ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
138
139 int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
140 {
141 ulong iflag;
142 ulong addr;
143 ulong data, len, checksum;
144 ulong *len_ptr;
145 int i, verify;
146 char *name, *s;
147 int (*appl)(cmd_tbl_t *, int, int, char *[]);
148 image_header_t *hdr = &header;
149
150 s = getenv ("verify");
151 verify = (s && (*s == 'n')) ? 0 : 1;
152
153 if (argc < 2) {
154 addr = load_addr;
155 } else {
156 addr = simple_strtoul(argv[1], NULL, 16);
157 }
158
159 SHOW_BOOT_PROGRESS (1);
160 printf ("## Booting image at %08lx ...\n", addr);
161
162 /* Copy header so we can blank CRC field for re-calculation */
163 #ifdef CONFIG_HAS_DATAFLASH
164 if (addr_dataflash(addr)){
165 read_dataflash(addr, sizeof(image_header_t), (char *)&header);
166 } else
167 #endif
168 memmove (&header, (char *)addr, sizeof(image_header_t));
169
170 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
171 #ifdef __I386__ /* correct image format not implemented yet - fake it */
172 if (fake_header(hdr, (void*)addr, -1) != NULL) {
173 /* to compensate for the addition below */
174 addr -= sizeof(image_header_t);
175 /* turnof verify,
176 * fake_header() does not fake the data crc
177 */
178 verify = 0;
179 } else
180 #endif /* __I386__ */
181 {
182 printf ("Bad Magic Number\n");
183 SHOW_BOOT_PROGRESS (-1);
184 return 1;
185 }
186 }
187 SHOW_BOOT_PROGRESS (2);
188
189 data = (ulong)&header;
190 len = sizeof(image_header_t);
191
192 checksum = ntohl(hdr->ih_hcrc);
193 hdr->ih_hcrc = 0;
194
195 if (crc32 (0, (char *)data, len) != checksum) {
196 printf ("Bad Header Checksum\n");
197 SHOW_BOOT_PROGRESS (-2);
198 return 1;
199 }
200 SHOW_BOOT_PROGRESS (3);
201
202 /* for multi-file images we need the data part, too */
203 print_image_hdr (hdr);
204
205 data = addr + sizeof(image_header_t);
206 len = ntohl(hdr->ih_size);
207
208 #ifdef CONFIG_HAS_DATAFLASH
209 if (addr_dataflash(addr)){
210 read_dataflash(data, len, (char *)CFG_LOAD_ADDR);
211 data = CFG_LOAD_ADDR;
212 }
213 #endif
214
215 if (verify) {
216 printf (" Verifying Checksum ... ");
217 if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) {
218 printf ("Bad Data CRC\n");
219 SHOW_BOOT_PROGRESS (-3);
220 return 1;
221 }
222 printf ("OK\n");
223 }
224 SHOW_BOOT_PROGRESS (4);
225
226 len_ptr = (ulong *)data;
227
228 #if defined(__PPC__)
229 if (hdr->ih_arch != IH_CPU_PPC)
230 #elif defined(__ARM__)
231 if (hdr->ih_arch != IH_CPU_ARM)
232 #elif defined(__I386__)
233 if (hdr->ih_arch != IH_CPU_I386)
234 #elif defined(__mips__)
235 if (hdr->ih_arch != IH_CPU_MIPS)
236 #else
237 # error Unknown CPU type
238 #endif
239 {
240 printf ("Unsupported Architecture 0x%x\n", hdr->ih_arch);
241 SHOW_BOOT_PROGRESS (-4);
242 return 1;
243 }
244 SHOW_BOOT_PROGRESS (5);
245
246 switch (hdr->ih_type) {
247 case IH_TYPE_STANDALONE: name = "Standalone Application";
248 break;
249 case IH_TYPE_KERNEL: name = "Kernel Image";
250 break;
251 case IH_TYPE_MULTI: name = "Multi-File Image";
252 len = ntohl(len_ptr[0]);
253 /* OS kernel is always the first image */
254 data += 8; /* kernel_len + terminator */
255 for (i=1; len_ptr[i]; ++i)
256 data += 4;
257 break;
258 default: printf ("Wrong Image Type for %s command\n", cmdtp->name);
259 SHOW_BOOT_PROGRESS (-5);
260 return 1;
261 }
262 SHOW_BOOT_PROGRESS (6);
263
264 /*
265 * We have reached the point of no return: we are going to
266 * overwrite all exception vector code, so we cannot easily
267 * recover from any failures any more...
268 */
269
270 iflag = disable_interrupts();
271
272 #ifdef CONFIG_AMIGAONEG3SE
273 /*
274 * We've possible left the caches enabled during
275 * bios emulation, so turn them off again
276 */
277 icache_disable();
278 invalidate_l1_instruction_cache();
279 flush_data_cache();
280 dcache_disable();
281 #endif
282
283 switch (hdr->ih_comp) {
284 case IH_COMP_NONE:
285 if(ntohl(hdr->ih_load) == addr) {
286 printf (" XIP %s ... ", name);
287 } else {
288 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
289 size_t l = len;
290 void *to = (void *)ntohl(hdr->ih_load);
291 void *from = (void *)data;
292
293 printf (" Loading %s ... ", name);
294
295 while (l > 0) {
296 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
297 WATCHDOG_RESET();
298 memmove (to, from, tail);
299 to += tail;
300 from += tail;
301 l -= tail;
302 }
303 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
304 memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len);
305 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
306 }
307 break;
308 case IH_COMP_GZIP:
309 printf (" Uncompressing %s ... ", name);
310 if (gunzip ((void *)ntohl(hdr->ih_load), 0x400000,
311 (uchar *)data, (int *)&len) != 0) {
312 printf ("GUNZIP ERROR - must RESET board to recover\n");
313 SHOW_BOOT_PROGRESS (-6);
314 do_reset (cmdtp, flag, argc, argv);
315 }
316 break;
317 default:
318 if (iflag)
319 enable_interrupts();
320 printf ("Unimplemented compression type %d\n", hdr->ih_comp);
321 SHOW_BOOT_PROGRESS (-7);
322 return 1;
323 }
324 printf ("OK\n");
325 SHOW_BOOT_PROGRESS (7);
326
327 switch (hdr->ih_type) {
328 case IH_TYPE_STANDALONE:
329 if (iflag)
330 enable_interrupts();
331
332 /* load (and uncompress), but don't start if "autostart"
333 * is set to "no"
334 */
335 if (((s = getenv("autostart")) != NULL) && (strcmp(s,"no") == 0))
336 return 0;
337 appl = (int (*)(cmd_tbl_t *, int, int, char *[]))ntohl(hdr->ih_ep);
338 (*appl)(cmdtp, flag, argc-1, &argv[1]);
339 return 0;
340 case IH_TYPE_KERNEL:
341 case IH_TYPE_MULTI:
342 /* handled below */
343 break;
344 default:
345 if (iflag)
346 enable_interrupts();
347 printf ("Can't boot image type %d\n", hdr->ih_type);
348 SHOW_BOOT_PROGRESS (-8);
349 return 1;
350 }
351 SHOW_BOOT_PROGRESS (8);
352
353 switch (hdr->ih_os) {
354 default: /* handled by (original) Linux case */
355 case IH_OS_LINUX:
356 do_bootm_linux (cmdtp, flag, argc, argv,
357 addr, len_ptr, verify);
358 break;
359 case IH_OS_NETBSD:
360 do_bootm_netbsd (cmdtp, flag, argc, argv,
361 addr, len_ptr, verify);
362 break;
363
364 #ifdef CONFIG_LYNXKDI
365 case IH_OS_LYNXOS:
366 do_bootm_lynxkdi (cmdtp, flag, argc, argv,
367 addr, len_ptr, verify);
368 break;
369 #endif
370
371 case IH_OS_RTEMS:
372 do_bootm_rtems (cmdtp, flag, argc, argv,
373 addr, len_ptr, verify);
374 break;
375
376 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
377 case IH_OS_VXWORKS:
378 do_bootm_vxworks (cmdtp, flag, argc, argv,
379 addr, len_ptr, verify);
380 break;
381 case IH_OS_QNX:
382 do_bootm_qnxelf (cmdtp, flag, argc, argv,
383 addr, len_ptr, verify);
384 break;
385 #endif /* CFG_CMD_ELF */
386 #ifdef CONFIG_ARTOS
387 case IH_OS_ARTOS:
388 do_bootm_artos (cmdtp, flag, argc, argv,
389 addr, len_ptr, verify);
390 break;
391 #endif
392 }
393
394 SHOW_BOOT_PROGRESS (-9);
395 #ifdef DEBUG
396 printf ("\n## Control returned to monitor - resetting...\n");
397 do_reset (cmdtp, flag, argc, argv);
398 #endif
399 return 1;
400 }
401
402 U_BOOT_CMD(
403 bootm, CFG_MAXARGS, 1, do_bootm,
404 "bootm - boot application image from memory\n",
405 "[addr [arg ...]]\n - boot application image stored in memory\n"
406 " passing arguments 'arg ...'; when booting a Linux kernel,\n"
407 " 'arg' can be the address of an initrd image\n"
408 );
409
410 #ifdef CONFIG_PPC
411 static void
412 do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
413 int argc, char *argv[],
414 ulong addr,
415 ulong *len_ptr,
416 int verify)
417 {
418 DECLARE_GLOBAL_DATA_PTR;
419
420 ulong sp;
421 ulong len, checksum;
422 ulong initrd_start, initrd_end;
423 ulong cmd_start, cmd_end;
424 ulong initrd_high;
425 ulong data;
426 int initrd_copy_to_ram = 1;
427 char *cmdline;
428 char *s;
429 bd_t *kbd;
430 void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
431 image_header_t *hdr = &header;
432
433 if ((s = getenv ("initrd_high")) != NULL) {
434 /* a value of "no" or a similar string will act like 0,
435 * turning the "load high" feature off. This is intentional.
436 */
437 initrd_high = simple_strtoul(s, NULL, 16);
438 if (initrd_high == ~0)
439 initrd_copy_to_ram = 0;
440 } else { /* not set, no restrictions to load high */
441 initrd_high = ~0;
442 }
443
444 #ifdef CONFIG_LOGBUFFER
445 kbd=gd->bd;
446 /* Prevent initrd from overwriting logbuffer */
447 if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
448 initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
449 debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
450 #endif
451
452 /*
453 * Booting a (Linux) kernel image
454 *
455 * Allocate space for command line and board info - the
456 * address should be as high as possible within the reach of
457 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
458 * memory, which means far enough below the current stack
459 * pointer.
460 */
461
462 asm( "mr %0,1": "=r"(sp) : );
463
464 debug ("## Current stack ends at 0x%08lX ", sp);
465
466 sp -= 2048; /* just to be sure */
467 if (sp > CFG_BOOTMAPSZ)
468 sp = CFG_BOOTMAPSZ;
469 sp &= ~0xF;
470
471 debug ("=> set upper limit to 0x%08lX\n", sp);
472
473 cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
474 kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
475
476 if ((s = getenv("bootargs")) == NULL)
477 s = "";
478
479 strcpy (cmdline, s);
480
481 cmd_start = (ulong)&cmdline[0];
482 cmd_end = cmd_start + strlen(cmdline);
483
484 *kbd = *(gd->bd);
485
486 #ifdef DEBUG
487 printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
488
489 do_bdinfo (NULL, 0, 0, NULL);
490 #endif
491
492 if ((s = getenv ("clocks_in_mhz")) != NULL) {
493 /* convert all clock information to MHz */
494 kbd->bi_intfreq /= 1000000L;
495 kbd->bi_busfreq /= 1000000L;
496 #if defined(CONFIG_8260)
497 kbd->bi_cpmfreq /= 1000000L;
498 kbd->bi_brgfreq /= 1000000L;
499 kbd->bi_sccfreq /= 1000000L;
500 kbd->bi_vco /= 1000000L;
501 #endif /* CONFIG_8260 */
502 #if defined(CONFIG_MPC5XXXX)
503 kbd->bi_ipbfreq /= 1000000L;
504 kbd->bi_pcifreq /= 1000000L;
505 #endif /* CONFIG_MPC5XXXX */
506 }
507
508 kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))hdr->ih_ep;
509
510 /*
511 * Check if there is an initrd image
512 */
513 if (argc >= 3) {
514 SHOW_BOOT_PROGRESS (9);
515
516 addr = simple_strtoul(argv[2], NULL, 16);
517
518 printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
519
520 /* Copy header so we can blank CRC field for re-calculation */
521 memmove (&header, (char *)addr, sizeof(image_header_t));
522
523 if (hdr->ih_magic != IH_MAGIC) {
524 printf ("Bad Magic Number\n");
525 SHOW_BOOT_PROGRESS (-10);
526 do_reset (cmdtp, flag, argc, argv);
527 }
528
529 data = (ulong)&header;
530 len = sizeof(image_header_t);
531
532 checksum = hdr->ih_hcrc;
533 hdr->ih_hcrc = 0;
534
535 if (crc32 (0, (char *)data, len) != checksum) {
536 printf ("Bad Header Checksum\n");
537 SHOW_BOOT_PROGRESS (-11);
538 do_reset (cmdtp, flag, argc, argv);
539 }
540
541 SHOW_BOOT_PROGRESS (10);
542
543 print_image_hdr (hdr);
544
545 data = addr + sizeof(image_header_t);
546 len = hdr->ih_size;
547
548 if (verify) {
549 ulong csum = 0;
550 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
551 ulong cdata = data, edata = cdata + len;
552 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
553
554 printf (" Verifying Checksum ... ");
555
556 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
557
558 while (cdata < edata) {
559 ulong chunk = edata - cdata;
560
561 if (chunk > CHUNKSZ)
562 chunk = CHUNKSZ;
563 csum = crc32 (csum, (char *)cdata, chunk);
564 cdata += chunk;
565
566 WATCHDOG_RESET();
567 }
568 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
569 csum = crc32 (0, (char *)data, len);
570 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
571
572 if (csum != hdr->ih_dcrc) {
573 printf ("Bad Data CRC\n");
574 SHOW_BOOT_PROGRESS (-12);
575 do_reset (cmdtp, flag, argc, argv);
576 }
577 printf ("OK\n");
578 }
579
580 SHOW_BOOT_PROGRESS (11);
581
582 if ((hdr->ih_os != IH_OS_LINUX) ||
583 (hdr->ih_arch != IH_CPU_PPC) ||
584 (hdr->ih_type != IH_TYPE_RAMDISK) ) {
585 printf ("No Linux PPC Ramdisk Image\n");
586 SHOW_BOOT_PROGRESS (-13);
587 do_reset (cmdtp, flag, argc, argv);
588 }
589
590 /*
591 * Now check if we have a multifile image
592 */
593 } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
594 u_long tail = ntohl(len_ptr[0]) % 4;
595 int i;
596
597 SHOW_BOOT_PROGRESS (13);
598
599 /* skip kernel length and terminator */
600 data = (ulong)(&len_ptr[2]);
601 /* skip any additional image length fields */
602 for (i=1; len_ptr[i]; ++i)
603 data += 4;
604 /* add kernel length, and align */
605 data += ntohl(len_ptr[0]);
606 if (tail) {
607 data += 4 - tail;
608 }
609
610 len = ntohl(len_ptr[1]);
611
612 } else {
613 /*
614 * no initrd image
615 */
616 SHOW_BOOT_PROGRESS (14);
617
618 len = data = 0;
619 }
620
621 if (!data) {
622 debug ("No initrd\n");
623 }
624
625 if (data) {
626 if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
627 initrd_start = data;
628 initrd_end = initrd_start + len;
629 } else {
630 initrd_start = (ulong)kbd - len;
631 initrd_start &= ~(4096 - 1); /* align on page */
632
633 if (initrd_high) {
634 ulong nsp;
635
636 /*
637 * the inital ramdisk does not need to be within
638 * CFG_BOOTMAPSZ as it is not accessed until after
639 * the mm system is initialised.
640 *
641 * do the stack bottom calculation again and see if
642 * the initrd will fit just below the monitor stack
643 * bottom without overwriting the area allocated
644 * above for command line args and board info.
645 */
646 asm( "mr %0,1": "=r"(nsp) : );
647 nsp -= 2048; /* just to be sure */
648 nsp &= ~0xF;
649 if (nsp > initrd_high) /* limit as specified */
650 nsp = initrd_high;
651 nsp -= len;
652 nsp &= ~(4096 - 1); /* align on page */
653 if (nsp >= sp)
654 initrd_start = nsp;
655 }
656
657 SHOW_BOOT_PROGRESS (12);
658
659 debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
660 data, data + len - 1, len, len);
661
662 initrd_end = initrd_start + len;
663 printf (" Loading Ramdisk to %08lx, end %08lx ... ",
664 initrd_start, initrd_end);
665 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
666 {
667 size_t l = len;
668 void *to = (void *)initrd_start;
669 void *from = (void *)data;
670
671 while (l > 0) {
672 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
673 WATCHDOG_RESET();
674 memmove (to, from, tail);
675 to += tail;
676 from += tail;
677 l -= tail;
678 }
679 }
680 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
681 memmove ((void *)initrd_start, (void *)data, len);
682 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
683 printf ("OK\n");
684 }
685 } else {
686 initrd_start = 0;
687 initrd_end = 0;
688 }
689
690
691 debug ("## Transferring control to Linux (at address %08lx) ...\n",
692 (ulong)kernel);
693
694 SHOW_BOOT_PROGRESS (15);
695
696 #ifdef CFG_INIT_RAM_LOCK
697 unlock_ram_in_cache();
698 #endif
699 /*
700 * Linux Kernel Parameters:
701 * r3: ptr to board info data
702 * r4: initrd_start or 0 if no initrd
703 * r5: initrd_end - unused if r4 is 0
704 * r6: Start of command line string
705 * r7: End of command line string
706 */
707 (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
708 }
709 #endif /* CONFIG_PPC */
710
711 static void
712 do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
713 int argc, char *argv[],
714 ulong addr,
715 ulong *len_ptr,
716 int verify)
717 {
718 DECLARE_GLOBAL_DATA_PTR;
719
720 image_header_t *hdr = &header;
721
722 void (*loader)(bd_t *, image_header_t *, char *, char *);
723 image_header_t *img_addr;
724 char *consdev;
725 char *cmdline;
726
727
728 /*
729 * Booting a (NetBSD) kernel image
730 *
731 * This process is pretty similar to a standalone application:
732 * The (first part of an multi-) image must be a stage-2 loader,
733 * which in turn is responsible for loading & invoking the actual
734 * kernel. The only differences are the parameters being passed:
735 * besides the board info strucure, the loader expects a command
736 * line, the name of the console device, and (optionally) the
737 * address of the original image header.
738 */
739
740 img_addr = 0;
741 if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]))
742 img_addr = (image_header_t *) addr;
743
744
745 consdev = "";
746 #if defined (CONFIG_8xx_CONS_SMC1)
747 consdev = "smc1";
748 #elif defined (CONFIG_8xx_CONS_SMC2)
749 consdev = "smc2";
750 #elif defined (CONFIG_8xx_CONS_SCC2)
751 consdev = "scc2";
752 #elif defined (CONFIG_8xx_CONS_SCC3)
753 consdev = "scc3";
754 #endif
755
756 if (argc > 2) {
757 ulong len;
758 int i;
759
760 for (i=2, len=0 ; i<argc ; i+=1)
761 len += strlen (argv[i]) + 1;
762 cmdline = malloc (len);
763
764 for (i=2, len=0 ; i<argc ; i+=1) {
765 if (i > 2)
766 cmdline[len++] = ' ';
767 strcpy (&cmdline[len], argv[i]);
768 len += strlen (argv[i]);
769 }
770 } else if ((cmdline = getenv("bootargs")) == NULL) {
771 cmdline = "";
772 }
773
774 loader = (void (*)(bd_t *, image_header_t *, char *, char *)) hdr->ih_ep;
775
776 printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
777 (ulong)loader);
778
779 SHOW_BOOT_PROGRESS (15);
780
781 /*
782 * NetBSD Stage-2 Loader Parameters:
783 * r3: ptr to board info data
784 * r4: image address
785 * r5: console device
786 * r6: boot args string
787 */
788 (*loader) (gd->bd, img_addr, consdev, cmdline);
789 }
790
791 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
792
793 /* Function that returns a character from the environment */
794 extern uchar (*env_get_char)(int);
795
796 static void
797 do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
798 int argc, char *argv[],
799 ulong addr,
800 ulong *len_ptr,
801 int verify)
802 {
803 DECLARE_GLOBAL_DATA_PTR;
804 ulong top;
805 char *s, *cmdline;
806 char **fwenv, **ss;
807 int i, j, nxt, len, envno, envsz;
808 bd_t *kbd;
809 void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
810 image_header_t *hdr = &header;
811
812 /*
813 * Booting an ARTOS kernel image + application
814 */
815
816 /* this used to be the top of memory, but was wrong... */
817 #ifdef CONFIG_PPC
818 /* get stack pointer */
819 asm volatile ("mr %0,1" : "=r"(top) );
820 #endif
821 debug ("## Current stack ends at 0x%08lX ", top);
822
823 top -= 2048; /* just to be sure */
824 if (top > CFG_BOOTMAPSZ)
825 top = CFG_BOOTMAPSZ;
826 top &= ~0xF;
827
828 debug ("=> set upper limit to 0x%08lX\n", top);
829
830 /* first check the artos specific boot args, then the linux args*/
831 if ((s = getenv("abootargs")) == NULL && (s = getenv("bootargs")) == NULL)
832 s = "";
833
834 /* get length of cmdline, and place it */
835 len = strlen(s);
836 top = (top - (len + 1)) & ~0xF;
837 cmdline = (char *)top;
838 debug ("## cmdline at 0x%08lX ", top);
839 strcpy(cmdline, s);
840
841 /* copy bdinfo */
842 top = (top - sizeof(bd_t)) & ~0xF;
843 debug ("## bd at 0x%08lX ", top);
844 kbd = (bd_t *)top;
845 memcpy(kbd, gd->bd, sizeof(bd_t));
846
847 /* first find number of env entries, and their size */
848 envno = 0;
849 envsz = 0;
850 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
851 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
852 ;
853 envno++;
854 envsz += (nxt - i) + 1; /* plus trailing zero */
855 }
856 envno++; /* plus the terminating zero */
857 debug ("## %u envvars total size %u ", envno, envsz);
858
859 top = (top - sizeof(char **)*envno) & ~0xF;
860 fwenv = (char **)top;
861 debug ("## fwenv at 0x%08lX ", top);
862
863 top = (top - envsz) & ~0xF;
864 s = (char *)top;
865 ss = fwenv;
866
867 /* now copy them */
868 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
869 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
870 ;
871 *ss++ = s;
872 for (j = i; j < nxt; ++j)
873 *s++ = env_get_char(j);
874 *s++ = '\0';
875 }
876 *ss++ = NULL; /* terminate */
877
878 entry = (void (*)(bd_t *, char *, char **, ulong))ntohl(hdr->ih_ep);
879 (*entry)(kbd, cmdline, fwenv, top);
880 }
881 #endif
882
883
884 #if (CONFIG_COMMANDS & CFG_CMD_BOOTD)
885 int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
886 {
887 int rcode = 0;
888 #ifndef CFG_HUSH_PARSER
889 if (run_command (getenv ("bootcmd"), flag) < 0) rcode = 1;
890 #else
891 if (parse_string_outer(getenv("bootcmd"),
892 FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0 ) rcode = 1;
893 #endif
894 return rcode;
895 }
896
897 U_BOOT_CMD(
898 boot, 1, 1, do_bootd,
899 "boot - boot default, i.e., run 'bootcmd'\n",
900 NULL
901 );
902
903 /* keep old command name "bootd" for backward compatibility */
904 U_BOOT_CMD(
905 bootd, 1, 1, do_bootd,
906 "bootd - boot default, i.e., run 'bootcmd'\n",
907 NULL
908 );
909
910 #endif
911
912 #if (CONFIG_COMMANDS & CFG_CMD_IMI)
913 int do_iminfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
914 {
915 int arg;
916 ulong addr;
917 int rcode=0;
918
919 if (argc < 2) {
920 return image_info (load_addr);
921 }
922
923 for (arg=1; arg <argc; ++arg) {
924 addr = simple_strtoul(argv[arg], NULL, 16);
925 if (image_info (addr) != 0) rcode = 1;
926 }
927 return rcode;
928 }
929
930 static int image_info (ulong addr)
931 {
932 ulong data, len, checksum;
933 image_header_t *hdr = &header;
934
935 printf ("\n## Checking Image at %08lx ...\n", addr);
936
937 /* Copy header so we can blank CRC field for re-calculation */
938 memmove (&header, (char *)addr, sizeof(image_header_t));
939
940 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
941 printf (" Bad Magic Number\n");
942 return 1;
943 }
944
945 data = (ulong)&header;
946 len = sizeof(image_header_t);
947
948 checksum = ntohl(hdr->ih_hcrc);
949 hdr->ih_hcrc = 0;
950
951 if (crc32 (0, (char *)data, len) != checksum) {
952 printf (" Bad Header Checksum\n");
953 return 1;
954 }
955
956 /* for multi-file images we need the data part, too */
957 print_image_hdr ((image_header_t *)addr);
958
959 data = addr + sizeof(image_header_t);
960 len = ntohl(hdr->ih_size);
961
962 printf (" Verifying Checksum ... ");
963 if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) {
964 printf (" Bad Data CRC\n");
965 return 1;
966 }
967 printf ("OK\n");
968 return 0;
969 }
970
971 U_BOOT_CMD(
972 iminfo, CFG_MAXARGS, 1, do_iminfo,
973 "iminfo - print header information for application image\n",
974 "addr [addr ...]\n"
975 " - print header information for application image starting at\n"
976 " address 'addr' in memory; this includes verification of the\n"
977 " image contents (magic number, header and payload checksums)\n"
978 );
979
980 #endif /* CFG_CMD_IMI */
981
982 #if (CONFIG_COMMANDS & CFG_CMD_IMLS)
983 /*-----------------------------------------------------------------------
984 * List all images found in flash.
985 */
986 int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
987 {
988 flash_info_t *info;
989 int i, j;
990 image_header_t *hdr;
991 ulong checksum;
992
993 for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) {
994 if (info->flash_id == FLASH_UNKNOWN)
995 goto next_bank;
996 for (j=0; j<CFG_MAX_FLASH_SECT; ++j) {
997
998 if (!(hdr=(image_header_t *)info->start[j]) ||
999 (ntohl(hdr->ih_magic) != IH_MAGIC))
1000 goto next_sector;
1001
1002 /* Copy header so we can blank CRC field for re-calculation */
1003 memmove (&header, (char *)hdr, sizeof(image_header_t));
1004
1005 checksum = ntohl(header.ih_hcrc);
1006 header.ih_hcrc = 0;
1007
1008 if (crc32 (0, (char *)&header, sizeof(image_header_t))
1009 != checksum)
1010 goto next_sector;
1011
1012 printf ("Image at %08lX:\n", (ulong)hdr);
1013 print_image_hdr( hdr );
1014 putc ('\n');
1015 next_sector:
1016 }
1017 next_bank:
1018 }
1019
1020 return (0);
1021 }
1022
1023 U_BOOT_CMD(
1024 imls, 1, 1, do_imls,
1025 "imls - list all images found in flash\n",
1026 "\n"
1027 " - Prints information about all images found at sector\n"
1028 " boundaries in flash.\n"
1029 );
1030 #endif /* CFG_CMD_IMLS */
1031
1032 void
1033 print_image_hdr (image_header_t *hdr)
1034 {
1035 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
1036 time_t timestamp = (time_t)ntohl(hdr->ih_time);
1037 struct rtc_time tm;
1038 #endif
1039
1040 printf (" Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
1041 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
1042 to_tm (timestamp, &tm);
1043 printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
1044 tm.tm_year, tm.tm_mon, tm.tm_mday,
1045 tm.tm_hour, tm.tm_min, tm.tm_sec);
1046 #endif /* CFG_CMD_DATE, CONFIG_TIMESTAMP */
1047 printf (" Image Type: "); print_type(hdr); printf ("\n");
1048 printf (" Data Size: %d Bytes = ", ntohl(hdr->ih_size));
1049 print_size (ntohl(hdr->ih_size), "\n");
1050 printf (" Load Address: %08x\n", ntohl(hdr->ih_load));
1051 printf (" Entry Point: %08x\n", ntohl(hdr->ih_ep));
1052
1053 if (hdr->ih_type == IH_TYPE_MULTI) {
1054 int i;
1055 ulong len;
1056 ulong *len_ptr = (ulong *)((ulong)hdr + sizeof(image_header_t));
1057
1058 printf (" Contents:\n");
1059 for (i=0; (len = ntohl(*len_ptr)); ++i, ++len_ptr) {
1060 printf (" Image %d: %8ld Bytes = ", i, len);
1061 print_size (len, "\n");
1062 }
1063 }
1064 }
1065
1066
1067 static void
1068 print_type (image_header_t *hdr)
1069 {
1070 char *os, *arch, *type, *comp;
1071
1072 switch (hdr->ih_os) {
1073 case IH_OS_INVALID: os = "Invalid OS"; break;
1074 case IH_OS_NETBSD: os = "NetBSD"; break;
1075 case IH_OS_LINUX: os = "Linux"; break;
1076 case IH_OS_VXWORKS: os = "VxWorks"; break;
1077 case IH_OS_QNX: os = "QNX"; break;
1078 case IH_OS_U_BOOT: os = "U-Boot"; break;
1079 case IH_OS_RTEMS: os = "RTEMS"; break;
1080 #ifdef CONFIG_ARTOS
1081 case IH_OS_ARTOS: os = "ARTOS"; break;
1082 #endif
1083 #ifdef CONFIG_LYNXKDI
1084 case IH_OS_LYNXOS: os = "LynxOS"; break;
1085 #endif
1086 default: os = "Unknown OS"; break;
1087 }
1088
1089 switch (hdr->ih_arch) {
1090 case IH_CPU_INVALID: arch = "Invalid CPU"; break;
1091 case IH_CPU_ALPHA: arch = "Alpha"; break;
1092 case IH_CPU_ARM: arch = "ARM"; break;
1093 case IH_CPU_I386: arch = "Intel x86"; break;
1094 case IH_CPU_IA64: arch = "IA64"; break;
1095 case IH_CPU_MIPS: arch = "MIPS"; break;
1096 case IH_CPU_MIPS64: arch = "MIPS 64 Bit"; break;
1097 case IH_CPU_PPC: arch = "PowerPC"; break;
1098 case IH_CPU_S390: arch = "IBM S390"; break;
1099 case IH_CPU_SH: arch = "SuperH"; break;
1100 case IH_CPU_SPARC: arch = "SPARC"; break;
1101 case IH_CPU_SPARC64: arch = "SPARC 64 Bit"; break;
1102 case IH_CPU_M68K: arch = "M68K"; break;
1103 default: arch = "Unknown Architecture"; break;
1104 }
1105
1106 switch (hdr->ih_type) {
1107 case IH_TYPE_INVALID: type = "Invalid Image"; break;
1108 case IH_TYPE_STANDALONE:type = "Standalone Program"; break;
1109 case IH_TYPE_KERNEL: type = "Kernel Image"; break;
1110 case IH_TYPE_RAMDISK: type = "RAMDisk Image"; break;
1111 case IH_TYPE_MULTI: type = "Multi-File Image"; break;
1112 case IH_TYPE_FIRMWARE: type = "Firmware"; break;
1113 case IH_TYPE_SCRIPT: type = "Script"; break;
1114 default: type = "Unknown Image"; break;
1115 }
1116
1117 switch (hdr->ih_comp) {
1118 case IH_COMP_NONE: comp = "uncompressed"; break;
1119 case IH_COMP_GZIP: comp = "gzip compressed"; break;
1120 case IH_COMP_BZIP2: comp = "bzip2 compressed"; break;
1121 default: comp = "unknown compression"; break;
1122 }
1123
1124 printf ("%s %s %s (%s)", arch, os, type, comp);
1125 }
1126
1127 #define ZALLOC_ALIGNMENT 16
1128
1129 static void *zalloc(void *x, unsigned items, unsigned size)
1130 {
1131 void *p;
1132
1133 size *= items;
1134 size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
1135
1136 p = malloc (size);
1137
1138 return (p);
1139 }
1140
1141 static void zfree(void *x, void *addr, unsigned nb)
1142 {
1143 free (addr);
1144 }
1145
1146 #define HEAD_CRC 2
1147 #define EXTRA_FIELD 4
1148 #define ORIG_NAME 8
1149 #define COMMENT 0x10
1150 #define RESERVED 0xe0
1151
1152 #define DEFLATED 8
1153
1154 int gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
1155 {
1156 z_stream s;
1157 int r, i, flags;
1158
1159 /* skip header */
1160 i = 10;
1161 flags = src[3];
1162 if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
1163 printf ("Error: Bad gzipped data\n");
1164 return (-1);
1165 }
1166 if ((flags & EXTRA_FIELD) != 0)
1167 i = 12 + src[10] + (src[11] << 8);
1168 if ((flags & ORIG_NAME) != 0)
1169 while (src[i++] != 0)
1170 ;
1171 if ((flags & COMMENT) != 0)
1172 while (src[i++] != 0)
1173 ;
1174 if ((flags & HEAD_CRC) != 0)
1175 i += 2;
1176 if (i >= *lenp) {
1177 printf ("Error: gunzip out of data in header\n");
1178 return (-1);
1179 }
1180
1181 s.zalloc = zalloc;
1182 s.zfree = zfree;
1183 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
1184 s.outcb = (cb_func)WATCHDOG_RESET;
1185 #else
1186 s.outcb = Z_NULL;
1187 #endif /* CONFIG_HW_WATCHDOG */
1188
1189 r = inflateInit2(&s, -MAX_WBITS);
1190 if (r != Z_OK) {
1191 printf ("Error: inflateInit2() returned %d\n", r);
1192 return (-1);
1193 }
1194 s.next_in = src + i;
1195 s.avail_in = *lenp - i;
1196 s.next_out = dst;
1197 s.avail_out = dstlen;
1198 r = inflate(&s, Z_FINISH);
1199 if (r != Z_OK && r != Z_STREAM_END) {
1200 printf ("Error: inflate() returned %d\n", r);
1201 return (-1);
1202 }
1203 *lenp = s.next_out - (unsigned char *) dst;
1204 inflateEnd(&s);
1205
1206 return (0);
1207 }
1208
1209 static void
1210 do_bootm_rtems (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1211 ulong addr, ulong *len_ptr, int verify)
1212 {
1213 DECLARE_GLOBAL_DATA_PTR;
1214 image_header_t *hdr = &header;
1215 void (*entry_point)(bd_t *);
1216
1217 entry_point = (void (*)(bd_t *)) hdr->ih_ep;
1218
1219 printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
1220 (ulong)entry_point);
1221
1222 SHOW_BOOT_PROGRESS (15);
1223
1224 /*
1225 * RTEMS Parameters:
1226 * r3: ptr to board info data
1227 */
1228
1229 (*entry_point ) ( gd->bd );
1230 }
1231
1232 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
1233 static void
1234 do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1235 ulong addr, ulong *len_ptr, int verify)
1236 {
1237 image_header_t *hdr = &header;
1238 char str[80];
1239
1240 sprintf(str, "%x", hdr->ih_ep); /* write entry-point into string */
1241 setenv("loadaddr", str);
1242 do_bootvx(cmdtp, 0, 0, NULL);
1243 }
1244
1245 static void
1246 do_bootm_qnxelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1247 ulong addr, ulong *len_ptr, int verify)
1248 {
1249 image_header_t *hdr = &header;
1250 char *local_args[2];
1251 char str[16];
1252
1253 sprintf(str, "%x", hdr->ih_ep); /* write entry-point into string */
1254 local_args[0] = argv[0];
1255 local_args[1] = str; /* and provide it via the arguments */
1256 do_bootelf(cmdtp, 0, 2, local_args);
1257 }
1258 #endif /* CFG_CMD_ELF */
1259
1260 #ifdef CONFIG_LYNXKDI
1261 static void
1262 do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag,
1263 int argc, char *argv[],
1264 ulong addr,
1265 ulong *len_ptr,
1266 int verify)
1267 {
1268 lynxkdi_boot( &header );
1269 }
1270
1271 #endif /* CONFIG_LYNXKDI */
1272
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