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