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wdenk47d1a6e2002-11-03 00:01:44 +00001/*
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 <cmd_boot.h>
31#include <image.h>
32#include <malloc.h>
33#include <zlib.h>
wdenk0893c472003-05-20 14:25:27 +000034#include <environment.h>
wdenk47d1a6e2002-11-03 00:01:44 +000035#include <asm/byteorder.h>
36#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
37#include <rtc.h>
38#endif
39
40#ifdef CFG_HUSH_PARSER
41#include <hush.h>
42#endif
43
44#ifdef CONFIG_SHOW_BOOT_PROGRESS
45# include <status_led.h>
46# define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
47#else
48# define SHOW_BOOT_PROGRESS(arg)
49#endif
50
51#ifdef CFG_INIT_RAM_LOCK
52#include <asm/cache.h>
53#endif
54
wdenk9dfa8d12002-12-08 09:53:23 +000055#ifdef CONFIG_LOGBUFFER
56#include <logbuff.h>
57#endif
58
wdenk47d1a6e2002-11-03 00:01:44 +000059/*
60 * Some systems (for example LWMON) have very short watchdog periods;
61 * we must make sure to split long operations like memmove() or
62 * crc32() into reasonable chunks.
63 */
64#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
65# define CHUNKSZ (64 * 1024)
66#endif
67
68int gunzip (void *, int, unsigned char *, int *);
69
70static void *zalloc(void *, unsigned, unsigned);
71static void zfree(void *, void *, unsigned);
72
73#if (CONFIG_COMMANDS & CFG_CMD_IMI)
74static int image_info (unsigned long addr);
75#endif
76static void print_type (image_header_t *hdr);
77
wdenk591dda52002-11-18 00:14:45 +000078#ifdef __I386__
79image_header_t *fake_header(image_header_t *hdr, void *ptr, int size);
80#endif
81
wdenk47d1a6e2002-11-03 00:01:44 +000082/*
83 * Continue booting an OS image; caller already has:
84 * - copied image header to global variable `header'
85 * - checked header magic number, checksums (both header & image),
86 * - verified image architecture (PPC) and type (KERNEL or MULTI),
87 * - loaded (first part of) image to header load address,
88 * - disabled interrupts.
89 */
90typedef void boot_os_Fcn (cmd_tbl_t *cmdtp, int flag,
91 int argc, char *argv[],
92 ulong addr, /* of image to boot */
93 ulong *len_ptr, /* multi-file image length table */
94 int verify); /* getenv("verify")[0] != 'n' */
95
wdenk591dda52002-11-18 00:14:45 +000096#ifdef CONFIG_PPC
wdenk47d1a6e2002-11-03 00:01:44 +000097static boot_os_Fcn do_bootm_linux;
98#else
99extern boot_os_Fcn do_bootm_linux;
100#endif
101static boot_os_Fcn do_bootm_netbsd;
wdenk92bbe3f2003-04-20 14:04:18 +0000102static boot_os_Fcn do_bootm_rtems;
wdenk47d1a6e2002-11-03 00:01:44 +0000103#if (CONFIG_COMMANDS & CFG_CMD_ELF)
104static boot_os_Fcn do_bootm_vxworks;
105static boot_os_Fcn do_bootm_qnxelf;
106int do_bootvx ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] );
107int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] );
108#endif /* CFG_CMD_ELF */
wdenk0893c472003-05-20 14:25:27 +0000109#if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
110static boot_os_Fcn do_bootm_artos;
111#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000112
113image_header_t header;
114
115ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
116
117int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
118{
119 ulong iflag;
120 ulong addr;
121 ulong data, len, checksum;
122 ulong *len_ptr;
123 int i, verify;
124 char *name, *s;
125 int (*appl)(cmd_tbl_t *, int, int, char *[]);
126 image_header_t *hdr = &header;
127
128 s = getenv ("verify");
129 verify = (s && (*s == 'n')) ? 0 : 1;
130
131 if (argc < 2) {
132 addr = load_addr;
133 } else {
134 addr = simple_strtoul(argv[1], NULL, 16);
135 }
136
137 SHOW_BOOT_PROGRESS (1);
138 printf ("## Booting image at %08lx ...\n", addr);
139
140 /* Copy header so we can blank CRC field for re-calculation */
141 memmove (&header, (char *)addr, sizeof(image_header_t));
142
143 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
wdenk591dda52002-11-18 00:14:45 +0000144#ifdef __I386__ /* correct image format not implemented yet - fake it */
145 if (fake_header(hdr, (void*)addr, -1) != NULL) {
146 /* to compensate for the addition below */
147 addr -= sizeof(image_header_t);
148 /* turnof verify,
149 * fake_header() does not fake the data crc
150 */
151 verify = 0;
152 } else
153#endif /* __I386__ */
154 {
wdenk47d1a6e2002-11-03 00:01:44 +0000155 printf ("Bad Magic Number\n");
156 SHOW_BOOT_PROGRESS (-1);
157 return 1;
wdenk591dda52002-11-18 00:14:45 +0000158 }
wdenk47d1a6e2002-11-03 00:01:44 +0000159 }
160 SHOW_BOOT_PROGRESS (2);
161
162 data = (ulong)&header;
163 len = sizeof(image_header_t);
164
165 checksum = ntohl(hdr->ih_hcrc);
166 hdr->ih_hcrc = 0;
167
168 if (crc32 (0, (char *)data, len) != checksum) {
169 printf ("Bad Header Checksum\n");
170 SHOW_BOOT_PROGRESS (-2);
171 return 1;
172 }
173 SHOW_BOOT_PROGRESS (3);
174
175 /* for multi-file images we need the data part, too */
wdenk591dda52002-11-18 00:14:45 +0000176 print_image_hdr (hdr);
wdenk47d1a6e2002-11-03 00:01:44 +0000177
178 data = addr + sizeof(image_header_t);
179 len = ntohl(hdr->ih_size);
180
181 if (verify) {
182 printf (" Verifying Checksum ... ");
183 if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) {
184 printf ("Bad Data CRC\n");
185 SHOW_BOOT_PROGRESS (-3);
186 return 1;
187 }
188 printf ("OK\n");
189 }
190 SHOW_BOOT_PROGRESS (4);
191
192 len_ptr = (ulong *)data;
193
wdenk591dda52002-11-18 00:14:45 +0000194#if defined(__PPC__)
195 if (hdr->ih_arch != IH_CPU_PPC)
196#elif defined(__ARM__)
197 if (hdr->ih_arch != IH_CPU_ARM)
198#elif defined(__I386__)
199 if (hdr->ih_arch != IH_CPU_I386)
wdenk4fc95692003-02-28 00:49:47 +0000200#elif defined(__mips__)
201 if (hdr->ih_arch != IH_CPU_MIPS)
wdenk591dda52002-11-18 00:14:45 +0000202#else
203# error Unknown CPU type
204#endif
205 {
206 printf ("Unsupported Architecture 0x%x\n", hdr->ih_arch);
wdenk47d1a6e2002-11-03 00:01:44 +0000207 SHOW_BOOT_PROGRESS (-4);
208 return 1;
209 }
210 SHOW_BOOT_PROGRESS (5);
211
212 switch (hdr->ih_type) {
213 case IH_TYPE_STANDALONE: name = "Standalone Application";
214 break;
215 case IH_TYPE_KERNEL: name = "Kernel Image";
216 break;
217 case IH_TYPE_MULTI: name = "Multi-File Image";
218 len = ntohl(len_ptr[0]);
219 /* OS kernel is always the first image */
220 data += 8; /* kernel_len + terminator */
221 for (i=1; len_ptr[i]; ++i)
222 data += 4;
223 break;
224 default: printf ("Wrong Image Type for %s command\n", cmdtp->name);
225 SHOW_BOOT_PROGRESS (-5);
226 return 1;
227 }
228 SHOW_BOOT_PROGRESS (6);
229
230 /*
231 * We have reached the point of no return: we are going to
232 * overwrite all exception vector code, so we cannot easily
233 * recover from any failures any more...
234 */
235
236 iflag = disable_interrupts();
237
wdenk452cfd62002-11-19 11:04:11 +0000238#ifdef CONFIG_AMIGAONEG3SE
239 /*
240 * We've possible left the caches enabled during
241 * bios emulation, so turn them off again
242 */
243 icache_disable();
244 invalidate_l1_instruction_cache();
245 flush_data_cache();
246 dcache_disable();
247#endif
248
wdenk47d1a6e2002-11-03 00:01:44 +0000249 switch (hdr->ih_comp) {
250 case IH_COMP_NONE:
wdenk591dda52002-11-18 00:14:45 +0000251 if(ntohl(hdr->ih_load) == addr) {
wdenk47d1a6e2002-11-03 00:01:44 +0000252 printf (" XIP %s ... ", name);
253 } else {
254#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
255 size_t l = len;
256 void *to = (void *)ntohl(hdr->ih_load);
257 void *from = (void *)data;
258
259 printf (" Loading %s ... ", name);
260
261 while (l > 0) {
262 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
263 WATCHDOG_RESET();
264 memmove (to, from, tail);
265 to += tail;
266 from += tail;
267 l -= tail;
268 }
269#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
270 memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len);
271#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
272 }
273 break;
274 case IH_COMP_GZIP:
275 printf (" Uncompressing %s ... ", name);
276 if (gunzip ((void *)ntohl(hdr->ih_load), 0x400000,
277 (uchar *)data, (int *)&len) != 0) {
278 printf ("GUNZIP ERROR - must RESET board to recover\n");
279 SHOW_BOOT_PROGRESS (-6);
280 do_reset (cmdtp, flag, argc, argv);
281 }
282 break;
283 default:
284 if (iflag)
285 enable_interrupts();
286 printf ("Unimplemented compression type %d\n", hdr->ih_comp);
287 SHOW_BOOT_PROGRESS (-7);
288 return 1;
289 }
290 printf ("OK\n");
291 SHOW_BOOT_PROGRESS (7);
292
293 switch (hdr->ih_type) {
294 case IH_TYPE_STANDALONE:
wdenk47d1a6e2002-11-03 00:01:44 +0000295 if (iflag)
296 enable_interrupts();
297
wdenk3f9ab982003-04-12 23:38:12 +0000298 /* load (and uncompress), but don't start if "autostart"
299 * is set to "no"
300 */
301 if (((s = getenv("autostart")) != NULL) && (strcmp(s,"no") == 0))
302 return 0;
303 appl = (int (*)(cmd_tbl_t *, int, int, char *[]))ntohl(hdr->ih_ep);
wdenk47d1a6e2002-11-03 00:01:44 +0000304 (*appl)(cmdtp, flag, argc-1, &argv[1]);
wdenk3f9ab982003-04-12 23:38:12 +0000305 return 0;
wdenk47d1a6e2002-11-03 00:01:44 +0000306 case IH_TYPE_KERNEL:
307 case IH_TYPE_MULTI:
308 /* handled below */
309 break;
310 default:
311 if (iflag)
312 enable_interrupts();
313 printf ("Can't boot image type %d\n", hdr->ih_type);
314 SHOW_BOOT_PROGRESS (-8);
315 return 1;
316 }
317 SHOW_BOOT_PROGRESS (8);
318
319 switch (hdr->ih_os) {
320 default: /* handled by (original) Linux case */
321 case IH_OS_LINUX:
322 do_bootm_linux (cmdtp, flag, argc, argv,
323 addr, len_ptr, verify);
324 break;
325 case IH_OS_NETBSD:
326 do_bootm_netbsd (cmdtp, flag, argc, argv,
327 addr, len_ptr, verify);
328 break;
wdenk92bbe3f2003-04-20 14:04:18 +0000329
330 case IH_OS_RTEMS:
331 do_bootm_rtems (cmdtp, flag, argc, argv,
332 addr, len_ptr, verify);
333 break;
334
wdenk47d1a6e2002-11-03 00:01:44 +0000335#if (CONFIG_COMMANDS & CFG_CMD_ELF)
336 case IH_OS_VXWORKS:
337 do_bootm_vxworks (cmdtp, flag, argc, argv,
338 addr, len_ptr, verify);
339 break;
340 case IH_OS_QNX:
341 do_bootm_qnxelf (cmdtp, flag, argc, argv,
342 addr, len_ptr, verify);
343 break;
344#endif /* CFG_CMD_ELF */
wdenk0893c472003-05-20 14:25:27 +0000345#ifdef CONFIG_ARTOS
346 case IH_OS_ARTOS:
347 do_bootm_artos (cmdtp, flag, argc, argv,
348 addr, len_ptr, verify);
349 break;
350#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000351 }
352
353 SHOW_BOOT_PROGRESS (-9);
354#ifdef DEBUG
355 printf ("\n## Control returned to monitor - resetting...\n");
356 do_reset (cmdtp, flag, argc, argv);
357#endif
358 return 1;
359}
360
wdenk591dda52002-11-18 00:14:45 +0000361#ifdef CONFIG_PPC
wdenk47d1a6e2002-11-03 00:01:44 +0000362static void
363do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
364 int argc, char *argv[],
365 ulong addr,
366 ulong *len_ptr,
367 int verify)
368{
369 DECLARE_GLOBAL_DATA_PTR;
370
371 ulong sp;
372 ulong len, checksum;
373 ulong initrd_start, initrd_end;
374 ulong cmd_start, cmd_end;
375 ulong initrd_high;
376 ulong data;
377 char *cmdline;
378 char *s;
379 bd_t *kbd;
380 void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
381 image_header_t *hdr = &header;
382
383 if ((s = getenv ("initrd_high")) != NULL) {
384 /* a value of "no" or a similar string will act like 0,
385 * turning the "load high" feature off. This is intentional.
386 */
387 initrd_high = simple_strtoul(s, NULL, 16);
wdenk9dfa8d12002-12-08 09:53:23 +0000388 } else { /* not set, no restrictions to load high */
wdenk47d1a6e2002-11-03 00:01:44 +0000389 initrd_high = ~0;
390 }
391
wdenk56f94be2002-11-05 16:35:14 +0000392#ifdef CONFIG_LOGBUFFER
wdenk34b613e2002-12-17 01:51:00 +0000393 kbd=gd->bd;
wdenk9dfa8d12002-12-08 09:53:23 +0000394 /* Prevent initrd from overwriting logbuffer */
395 if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
396 initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
397 debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
wdenk56f94be2002-11-05 16:35:14 +0000398#endif
399
wdenk47d1a6e2002-11-03 00:01:44 +0000400 /*
401 * Booting a (Linux) kernel image
402 *
403 * Allocate space for command line and board info - the
404 * address should be as high as possible within the reach of
405 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
406 * memory, which means far enough below the current stack
407 * pointer.
408 */
409
410 asm( "mr %0,1": "=r"(sp) : );
411
wdenk56f94be2002-11-05 16:35:14 +0000412 debug ("## Current stack ends at 0x%08lX ", sp);
413
wdenk47d1a6e2002-11-03 00:01:44 +0000414 sp -= 2048; /* just to be sure */
415 if (sp > CFG_BOOTMAPSZ)
416 sp = CFG_BOOTMAPSZ;
417 sp &= ~0xF;
418
wdenk56f94be2002-11-05 16:35:14 +0000419 debug ("=> set upper limit to 0x%08lX\n", sp);
420
wdenk47d1a6e2002-11-03 00:01:44 +0000421 cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
422 kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
423
424 if ((s = getenv("bootargs")) == NULL)
425 s = "";
426
427 strcpy (cmdline, s);
428
429 cmd_start = (ulong)&cmdline[0];
430 cmd_end = cmd_start + strlen(cmdline);
431
432 *kbd = *(gd->bd);
433
434#ifdef DEBUG
435 printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
436
437 do_bdinfo (NULL, 0, 0, NULL);
438#endif
439
440 if ((s = getenv ("clocks_in_mhz")) != NULL) {
441 /* convert all clock information to MHz */
442 kbd->bi_intfreq /= 1000000L;
443 kbd->bi_busfreq /= 1000000L;
444#if defined(CONFIG_8260)
445 kbd->bi_cpmfreq /= 1000000L;
446 kbd->bi_brgfreq /= 1000000L;
447 kbd->bi_sccfreq /= 1000000L;
448 kbd->bi_vco /= 1000000L;
449#endif /* CONFIG_8260 */
450 }
451
452 kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))hdr->ih_ep;
453
454 /*
455 * Check if there is an initrd image
456 */
457 if (argc >= 3) {
458 SHOW_BOOT_PROGRESS (9);
459
460 addr = simple_strtoul(argv[2], NULL, 16);
461
462 printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
463
464 /* Copy header so we can blank CRC field for re-calculation */
465 memmove (&header, (char *)addr, sizeof(image_header_t));
466
467 if (hdr->ih_magic != IH_MAGIC) {
468 printf ("Bad Magic Number\n");
469 SHOW_BOOT_PROGRESS (-10);
470 do_reset (cmdtp, flag, argc, argv);
471 }
472
473 data = (ulong)&header;
474 len = sizeof(image_header_t);
475
476 checksum = hdr->ih_hcrc;
477 hdr->ih_hcrc = 0;
478
479 if (crc32 (0, (char *)data, len) != checksum) {
480 printf ("Bad Header Checksum\n");
481 SHOW_BOOT_PROGRESS (-11);
482 do_reset (cmdtp, flag, argc, argv);
483 }
484
485 SHOW_BOOT_PROGRESS (10);
486
487 print_image_hdr (hdr);
488
489 data = addr + sizeof(image_header_t);
490 len = hdr->ih_size;
491
492 if (verify) {
493 ulong csum = 0;
494#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
495 ulong cdata = data, edata = cdata + len;
496#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
497
498 printf (" Verifying Checksum ... ");
499
500#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
501
502 while (cdata < edata) {
503 ulong chunk = edata - cdata;
504
505 if (chunk > CHUNKSZ)
506 chunk = CHUNKSZ;
507 csum = crc32 (csum, (char *)cdata, chunk);
508 cdata += chunk;
509
510 WATCHDOG_RESET();
511 }
512#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
513 csum = crc32 (0, (char *)data, len);
514#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
515
516 if (csum != hdr->ih_dcrc) {
517 printf ("Bad Data CRC\n");
518 SHOW_BOOT_PROGRESS (-12);
519 do_reset (cmdtp, flag, argc, argv);
520 }
521 printf ("OK\n");
522 }
523
524 SHOW_BOOT_PROGRESS (11);
525
526 if ((hdr->ih_os != IH_OS_LINUX) ||
527 (hdr->ih_arch != IH_CPU_PPC) ||
528 (hdr->ih_type != IH_TYPE_RAMDISK) ) {
529 printf ("No Linux PPC Ramdisk Image\n");
530 SHOW_BOOT_PROGRESS (-13);
531 do_reset (cmdtp, flag, argc, argv);
532 }
533
534 /*
535 * Now check if we have a multifile image
536 */
537 } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
538 u_long tail = ntohl(len_ptr[0]) % 4;
539 int i;
540
541 SHOW_BOOT_PROGRESS (13);
542
543 /* skip kernel length and terminator */
544 data = (ulong)(&len_ptr[2]);
545 /* skip any additional image length fields */
546 for (i=1; len_ptr[i]; ++i)
547 data += 4;
548 /* add kernel length, and align */
549 data += ntohl(len_ptr[0]);
550 if (tail) {
551 data += 4 - tail;
552 }
553
554 len = ntohl(len_ptr[1]);
555
556 } else {
557 /*
558 * no initrd image
559 */
560 SHOW_BOOT_PROGRESS (14);
561
562 len = data = 0;
563 }
564
wdenk47d1a6e2002-11-03 00:01:44 +0000565 if (!data) {
wdenk56f94be2002-11-05 16:35:14 +0000566 debug ("No initrd\n");
wdenk47d1a6e2002-11-03 00:01:44 +0000567 }
wdenk47d1a6e2002-11-03 00:01:44 +0000568
569 if (data) {
570 initrd_start = (ulong)kbd - len;
571 initrd_start &= ~(4096 - 1); /* align on page */
572
573 if (initrd_high) {
574 ulong nsp;
575
576 /*
577 * the inital ramdisk does not need to be within
578 * CFG_BOOTMAPSZ as it is not accessed until after
579 * the mm system is initialised.
580 *
581 * do the stack bottom calculation again and see if
582 * the initrd will fit just below the monitor stack
583 * bottom without overwriting the area allocated
584 * above for command line args and board info.
585 */
586 asm( "mr %0,1": "=r"(nsp) : );
587 nsp -= 2048; /* just to be sure */
588 nsp &= ~0xF;
589 if (nsp > initrd_high) /* limit as specified */
590 nsp = initrd_high;
591 nsp -= len;
592 nsp &= ~(4096 - 1); /* align on page */
593 if (nsp >= sp)
594 initrd_start = nsp;
595 }
596
597 SHOW_BOOT_PROGRESS (12);
wdenk56f94be2002-11-05 16:35:14 +0000598
599 debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
wdenk47d1a6e2002-11-03 00:01:44 +0000600 data, data + len - 1, len, len);
wdenk56f94be2002-11-05 16:35:14 +0000601
wdenk47d1a6e2002-11-03 00:01:44 +0000602 initrd_end = initrd_start + len;
603 printf (" Loading Ramdisk to %08lx, end %08lx ... ",
604 initrd_start, initrd_end);
605#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
606 {
607 size_t l = len;
608 void *to = (void *)initrd_start;
609 void *from = (void *)data;
610
611 while (l > 0) {
612 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
613 WATCHDOG_RESET();
614 memmove (to, from, tail);
615 to += tail;
616 from += tail;
617 l -= tail;
618 }
619 }
620#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
621 memmove ((void *)initrd_start, (void *)data, len);
622#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
623 printf ("OK\n");
624 } else {
625 initrd_start = 0;
626 initrd_end = 0;
627 }
628
wdenk56f94be2002-11-05 16:35:14 +0000629
630 debug ("## Transferring control to Linux (at address %08lx) ...\n",
wdenk47d1a6e2002-11-03 00:01:44 +0000631 (ulong)kernel);
wdenk56f94be2002-11-05 16:35:14 +0000632
wdenk47d1a6e2002-11-03 00:01:44 +0000633 SHOW_BOOT_PROGRESS (15);
634
635#ifdef CFG_INIT_RAM_LOCK
636 unlock_ram_in_cache();
637#endif
638 /*
639 * Linux Kernel Parameters:
640 * r3: ptr to board info data
641 * r4: initrd_start or 0 if no initrd
642 * r5: initrd_end - unused if r4 is 0
643 * r6: Start of command line string
644 * r7: End of command line string
645 */
646 (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
647}
wdenk1fe2c702003-03-06 21:55:29 +0000648#endif /* CONFIG_PPC */
wdenk47d1a6e2002-11-03 00:01:44 +0000649
650static void
651do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
652 int argc, char *argv[],
653 ulong addr,
654 ulong *len_ptr,
655 int verify)
656{
657 DECLARE_GLOBAL_DATA_PTR;
658
659 image_header_t *hdr = &header;
660
661 void (*loader)(bd_t *, image_header_t *, char *, char *);
662 image_header_t *img_addr;
663 char *consdev;
664 char *cmdline;
665
666
667 /*
668 * Booting a (NetBSD) kernel image
669 *
670 * This process is pretty similar to a standalone application:
671 * The (first part of an multi-) image must be a stage-2 loader,
672 * which in turn is responsible for loading & invoking the actual
673 * kernel. The only differences are the parameters being passed:
674 * besides the board info strucure, the loader expects a command
675 * line, the name of the console device, and (optionally) the
676 * address of the original image header.
677 */
678
679 img_addr = 0;
680 if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]))
681 img_addr = (image_header_t *) addr;
682
683
684 consdev = "";
685#if defined (CONFIG_8xx_CONS_SMC1)
686 consdev = "smc1";
687#elif defined (CONFIG_8xx_CONS_SMC2)
688 consdev = "smc2";
689#elif defined (CONFIG_8xx_CONS_SCC2)
690 consdev = "scc2";
691#elif defined (CONFIG_8xx_CONS_SCC3)
692 consdev = "scc3";
693#endif
694
695 if (argc > 2) {
696 ulong len;
697 int i;
698
699 for (i=2, len=0 ; i<argc ; i+=1)
700 len += strlen (argv[i]) + 1;
701 cmdline = malloc (len);
702
703 for (i=2, len=0 ; i<argc ; i+=1) {
704 if (i > 2)
705 cmdline[len++] = ' ';
706 strcpy (&cmdline[len], argv[i]);
707 len += strlen (argv[i]);
708 }
709 } else if ((cmdline = getenv("bootargs")) == NULL) {
710 cmdline = "";
711 }
712
713 loader = (void (*)(bd_t *, image_header_t *, char *, char *)) hdr->ih_ep;
714
715 printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
716 (ulong)loader);
717
718 SHOW_BOOT_PROGRESS (15);
719
720 /*
721 * NetBSD Stage-2 Loader Parameters:
722 * r3: ptr to board info data
723 * r4: image address
724 * r5: console device
725 * r6: boot args string
726 */
727 (*loader) (gd->bd, img_addr, consdev, cmdline);
728}
wdenk0893c472003-05-20 14:25:27 +0000729
730#if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
731
732/* Function that returns a character from the environment */
733extern uchar (*env_get_char)(int);
734
735static void
736do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
737 int argc, char *argv[],
738 ulong addr,
739 ulong *len_ptr,
740 int verify)
741{
742 DECLARE_GLOBAL_DATA_PTR;
743 ulong top;
744 char *s, *cmdline;
745 char **fwenv, **ss;
746 int i, j, nxt, len, envno, envsz;
747 bd_t *kbd;
748 void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
749 image_header_t *hdr = &header;
750
751 /*
752 * Booting an ARTOS kernel image + application
753 */
754
755 /* this used to be the top of memory, but was wrong... */
756#ifdef CONFIG_PPC
757 /* get stack pointer */
758 asm volatile ("mr %0,1" : "=r"(top) );
759#endif
760 debug ("## Current stack ends at 0x%08lX ", top);
761
762 top -= 2048; /* just to be sure */
763 if (top > CFG_BOOTMAPSZ)
764 top = CFG_BOOTMAPSZ;
765 top &= ~0xF;
766
767 debug ("=> set upper limit to 0x%08lX\n", top);
768
769 /* first check the artos specific boot args, then the linux args*/
770 if ((s = getenv("abootargs")) == NULL && (s = getenv("bootargs")) == NULL)
771 s = "";
772
773 /* get length of cmdline, and place it */
774 len = strlen(s);
775 top = (top - (len + 1)) & ~0xF;
776 cmdline = (char *)top;
777 debug ("## cmdline at 0x%08lX ", top);
778 strcpy(cmdline, s);
779
780 /* copy bdinfo */
781 top = (top - sizeof(bd_t)) & ~0xF;
782 debug ("## bd at 0x%08lX ", top);
783 kbd = (bd_t *)top;
784 memcpy(kbd, gd->bd, sizeof(bd_t));
785
786 /* first find number of env entries, and their size */
787 envno = 0;
788 envsz = 0;
789 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
790 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
791 ;
792 envno++;
793 envsz += (nxt - i) + 1; /* plus trailing zero */
794 }
795 envno++; /* plus the terminating zero */
796 debug ("## %u envvars total size %u ", envno, envsz);
797
798 top = (top - sizeof(char **)*envno) & ~0xF;
799 fwenv = (char **)top;
800 debug ("## fwenv at 0x%08lX ", top);
801
802 top = (top - envsz) & ~0xF;
803 s = (char *)top;
804 ss = fwenv;
805
806 /* now copy them */
807 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
808 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
809 ;
810 *ss++ = s;
811 for (j = i; j < nxt; ++j)
812 *s++ = env_get_char(j);
813 *s++ = '\0';
814 }
815 *ss++ = NULL; /* terminate */
816
817 entry = (void (*)(bd_t *, char *, char **, ulong))ntohl(hdr->ih_ep);
818 (*entry)(kbd, cmdline, fwenv, top);
819}
820#endif
821
wdenk47d1a6e2002-11-03 00:01:44 +0000822
823#if (CONFIG_COMMANDS & CFG_CMD_BOOTD)
824int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
825{
826 int rcode = 0;
827#ifndef CFG_HUSH_PARSER
828 if (run_command (getenv ("bootcmd"), flag) < 0) rcode = 1;
829#else
830 if (parse_string_outer(getenv("bootcmd"),
831 FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0 ) rcode = 1;
832#endif
833 return rcode;
834}
835#endif
836
837#if (CONFIG_COMMANDS & CFG_CMD_IMI)
838int do_iminfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
839{
840 int arg;
841 ulong addr;
842 int rcode=0;
843
844 if (argc < 2) {
845 return image_info (load_addr);
846 }
847
848 for (arg=1; arg <argc; ++arg) {
849 addr = simple_strtoul(argv[arg], NULL, 16);
850 if (image_info (addr) != 0) rcode = 1;
851 }
852 return rcode;
853}
854
855static int image_info (ulong addr)
856{
857 ulong data, len, checksum;
858 image_header_t *hdr = &header;
859
860 printf ("\n## Checking Image at %08lx ...\n", addr);
861
862 /* Copy header so we can blank CRC field for re-calculation */
863 memmove (&header, (char *)addr, sizeof(image_header_t));
864
865 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
866 printf (" Bad Magic Number\n");
867 return 1;
868 }
869
870 data = (ulong)&header;
871 len = sizeof(image_header_t);
872
873 checksum = ntohl(hdr->ih_hcrc);
874 hdr->ih_hcrc = 0;
875
876 if (crc32 (0, (char *)data, len) != checksum) {
877 printf (" Bad Header Checksum\n");
878 return 1;
879 }
880
881 /* for multi-file images we need the data part, too */
882 print_image_hdr ((image_header_t *)addr);
883
884 data = addr + sizeof(image_header_t);
885 len = ntohl(hdr->ih_size);
886
887 printf (" Verifying Checksum ... ");
888 if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) {
889 printf (" Bad Data CRC\n");
890 return 1;
891 }
892 printf ("OK\n");
893 return 0;
894}
895#endif /* CFG_CMD_IMI */
896
897void
898print_image_hdr (image_header_t *hdr)
899{
900#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
901 time_t timestamp = (time_t)ntohl(hdr->ih_time);
902 struct rtc_time tm;
903#endif
904
905 printf (" Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
906#if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
907 to_tm (timestamp, &tm);
908 printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
909 tm.tm_year, tm.tm_mon, tm.tm_mday,
910 tm.tm_hour, tm.tm_min, tm.tm_sec);
911#endif /* CFG_CMD_DATE, CONFIG_TIMESTAMP */
912 printf (" Image Type: "); print_type(hdr); printf ("\n");
913 printf (" Data Size: %d Bytes = ", ntohl(hdr->ih_size));
914 print_size (ntohl(hdr->ih_size), "\n");
915 printf (" Load Address: %08x\n", ntohl(hdr->ih_load));
916 printf (" Entry Point: %08x\n", ntohl(hdr->ih_ep));
917
918 if (hdr->ih_type == IH_TYPE_MULTI) {
919 int i;
920 ulong len;
921 ulong *len_ptr = (ulong *)((ulong)hdr + sizeof(image_header_t));
922
923 printf (" Contents:\n");
924 for (i=0; (len = ntohl(*len_ptr)); ++i, ++len_ptr) {
925 printf (" Image %d: %8ld Bytes = ", i, len);
926 print_size (len, "\n");
927 }
928 }
929}
930
931
932static void
933print_type (image_header_t *hdr)
934{
935 char *os, *arch, *type, *comp;
936
937 switch (hdr->ih_os) {
938 case IH_OS_INVALID: os = "Invalid OS"; break;
939 case IH_OS_NETBSD: os = "NetBSD"; break;
940 case IH_OS_LINUX: os = "Linux"; break;
941 case IH_OS_VXWORKS: os = "VxWorks"; break;
942 case IH_OS_QNX: os = "QNX"; break;
943 case IH_OS_U_BOOT: os = "U-Boot"; break;
wdenk92bbe3f2003-04-20 14:04:18 +0000944 case IH_OS_RTEMS: os = "RTEMS"; break;
wdenk0893c472003-05-20 14:25:27 +0000945#ifdef CONFIG_ARTOS
946 case IH_OS_ARTOS: os = "ARTOS"; break;
947#endif
wdenk47d1a6e2002-11-03 00:01:44 +0000948 default: os = "Unknown OS"; break;
949 }
950
951 switch (hdr->ih_arch) {
952 case IH_CPU_INVALID: arch = "Invalid CPU"; break;
953 case IH_CPU_ALPHA: arch = "Alpha"; break;
954 case IH_CPU_ARM: arch = "ARM"; break;
955 case IH_CPU_I386: arch = "Intel x86"; break;
956 case IH_CPU_IA64: arch = "IA64"; break;
957 case IH_CPU_MIPS: arch = "MIPS"; break;
958 case IH_CPU_MIPS64: arch = "MIPS 64 Bit"; break;
959 case IH_CPU_PPC: arch = "PowerPC"; break;
960 case IH_CPU_S390: arch = "IBM S390"; break;
961 case IH_CPU_SH: arch = "SuperH"; break;
962 case IH_CPU_SPARC: arch = "SPARC"; break;
963 case IH_CPU_SPARC64: arch = "SPARC 64 Bit"; break;
964 default: arch = "Unknown Architecture"; break;
965 }
966
967 switch (hdr->ih_type) {
968 case IH_TYPE_INVALID: type = "Invalid Image"; break;
969 case IH_TYPE_STANDALONE:type = "Standalone Program"; break;
970 case IH_TYPE_KERNEL: type = "Kernel Image"; break;
971 case IH_TYPE_RAMDISK: type = "RAMDisk Image"; break;
972 case IH_TYPE_MULTI: type = "Multi-File Image"; break;
973 case IH_TYPE_FIRMWARE: type = "Firmware"; break;
974 case IH_TYPE_SCRIPT: type = "Script"; break;
975 default: type = "Unknown Image"; break;
976 }
977
978 switch (hdr->ih_comp) {
979 case IH_COMP_NONE: comp = "uncompressed"; break;
980 case IH_COMP_GZIP: comp = "gzip compressed"; break;
981 case IH_COMP_BZIP2: comp = "bzip2 compressed"; break;
982 default: comp = "unknown compression"; break;
983 }
984
985 printf ("%s %s %s (%s)", arch, os, type, comp);
986}
987
988#define ZALLOC_ALIGNMENT 16
989
990static void *zalloc(void *x, unsigned items, unsigned size)
991{
992 void *p;
993
994 size *= items;
995 size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
996
997 p = malloc (size);
998
999 return (p);
1000}
1001
1002static void zfree(void *x, void *addr, unsigned nb)
1003{
1004 free (addr);
1005}
1006
1007#define HEAD_CRC 2
1008#define EXTRA_FIELD 4
1009#define ORIG_NAME 8
1010#define COMMENT 0x10
1011#define RESERVED 0xe0
1012
1013#define DEFLATED 8
1014
1015int gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
1016{
1017 z_stream s;
1018 int r, i, flags;
1019
1020 /* skip header */
1021 i = 10;
1022 flags = src[3];
1023 if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
1024 printf ("Error: Bad gzipped data\n");
1025 return (-1);
1026 }
1027 if ((flags & EXTRA_FIELD) != 0)
1028 i = 12 + src[10] + (src[11] << 8);
1029 if ((flags & ORIG_NAME) != 0)
1030 while (src[i++] != 0)
1031 ;
1032 if ((flags & COMMENT) != 0)
1033 while (src[i++] != 0)
1034 ;
1035 if ((flags & HEAD_CRC) != 0)
1036 i += 2;
1037 if (i >= *lenp) {
1038 printf ("Error: gunzip out of data in header\n");
1039 return (-1);
1040 }
1041
1042 s.zalloc = zalloc;
1043 s.zfree = zfree;
1044#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
1045 s.outcb = (cb_func)WATCHDOG_RESET;
1046#else
1047 s.outcb = Z_NULL;
1048#endif /* CONFIG_HW_WATCHDOG */
1049
1050 r = inflateInit2(&s, -MAX_WBITS);
1051 if (r != Z_OK) {
1052 printf ("Error: inflateInit2() returned %d\n", r);
1053 return (-1);
1054 }
1055 s.next_in = src + i;
1056 s.avail_in = *lenp - i;
1057 s.next_out = dst;
1058 s.avail_out = dstlen;
1059 r = inflate(&s, Z_FINISH);
1060 if (r != Z_OK && r != Z_STREAM_END) {
1061 printf ("Error: inflate() returned %d\n", r);
1062 return (-1);
1063 }
1064 *lenp = s.next_out - (unsigned char *) dst;
1065 inflateEnd(&s);
1066
1067 return (0);
1068}
1069
wdenk92bbe3f2003-04-20 14:04:18 +00001070static void
1071do_bootm_rtems (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1072 ulong addr, ulong *len_ptr, int verify)
1073{
1074 DECLARE_GLOBAL_DATA_PTR;
1075 image_header_t *hdr = &header;
1076 void (*entry_point)(bd_t *);
1077
1078 entry_point = (void (*)(bd_t *)) hdr->ih_ep;
1079
1080 printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
1081 (ulong)entry_point);
1082
1083 SHOW_BOOT_PROGRESS (15);
1084
1085 /*
1086 * RTEMS Parameters:
1087 * r3: ptr to board info data
1088 */
1089
1090 (*entry_point ) ( gd->bd );
1091}
1092
wdenk47d1a6e2002-11-03 00:01:44 +00001093#if (CONFIG_COMMANDS & CFG_CMD_ELF)
1094static void
1095do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1096 ulong addr, ulong *len_ptr, int verify)
1097{
1098 image_header_t *hdr = &header;
1099 char str[80];
1100
1101 sprintf(str, "%x", hdr->ih_ep); /* write entry-point into string */
1102 setenv("loadaddr", str);
1103 do_bootvx(cmdtp, 0, 0, NULL);
1104}
1105
1106static void
1107do_bootm_qnxelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1108 ulong addr, ulong *len_ptr, int verify)
1109{
1110 image_header_t *hdr = &header;
1111 char *local_args[2];
1112 char str[16];
1113
1114 sprintf(str, "%x", hdr->ih_ep); /* write entry-point into string */
1115 local_args[0] = argv[0];
1116 local_args[1] = str; /* and provide it via the arguments */
1117 do_bootelf(cmdtp, 0, 2, local_args);
1118}
1119#endif /* CFG_CMD_ELF */