2 * (C) Copyright 2000-2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
34 #include <environment.h>
35 #include <asm/byteorder.h>
37 #ifdef CONFIG_OF_FLAT_TREE
42 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
44 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
48 #ifdef CFG_HUSH_PARSER
52 #ifdef CONFIG_SHOW_BOOT_PROGRESS
53 # include <status_led.h>
54 # define SHOW_BOOT_PROGRESS(arg) show_boot_progress(arg)
56 # define SHOW_BOOT_PROGRESS(arg)
59 #ifdef CFG_INIT_RAM_LOCK
60 #include <asm/cache.h>
63 #ifdef CONFIG_LOGBUFFER
67 #ifdef CONFIG_HAS_DATAFLASH
68 #include <dataflash.h>
72 * Some systems (for example LWMON) have very short watchdog periods;
73 * we must make sure to split long operations like memmove() or
74 * crc32() into reasonable chunks.
76 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
77 # define CHUNKSZ (64 * 1024)
80 int gunzip (void *, int, unsigned char *, unsigned long *);
82 static void *zalloc(void *, unsigned, unsigned);
83 static void zfree(void *, void *, unsigned);
85 #if (CONFIG_COMMANDS & CFG_CMD_IMI)
86 static int image_info (unsigned long addr);
89 #if (CONFIG_COMMANDS & CFG_CMD_IMLS)
91 extern flash_info_t flash_info[]; /* info for FLASH chips */
92 static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
95 static void print_type (image_header_t *hdr);
98 image_header_t *fake_header(image_header_t *hdr, void *ptr, int size);
102 * Continue booting an OS image; caller already has:
103 * - copied image header to global variable `header'
104 * - checked header magic number, checksums (both header & image),
105 * - verified image architecture (PPC) and type (KERNEL or MULTI),
106 * - loaded (first part of) image to header load address,
107 * - disabled interrupts.
109 typedef void boot_os_Fcn (cmd_tbl_t *cmdtp, int flag,
110 int argc, char *argv[],
111 ulong addr, /* of image to boot */
112 ulong *len_ptr, /* multi-file image length table */
113 int verify); /* getenv("verify")[0] != 'n' */
116 extern int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
120 static boot_os_Fcn do_bootm_linux;
122 extern boot_os_Fcn do_bootm_linux;
124 #ifdef CONFIG_SILENT_CONSOLE
125 static void fixup_silent_linux (void);
127 static boot_os_Fcn do_bootm_netbsd;
128 static boot_os_Fcn do_bootm_rtems;
129 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
130 static boot_os_Fcn do_bootm_vxworks;
131 static boot_os_Fcn do_bootm_qnxelf;
132 int do_bootvx ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] );
133 int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] );
134 #endif /* CFG_CMD_ELF */
135 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
136 static boot_os_Fcn do_bootm_artos;
138 #ifdef CONFIG_LYNXKDI
139 static boot_os_Fcn do_bootm_lynxkdi;
140 extern void lynxkdi_boot( image_header_t * );
143 image_header_t header;
145 ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
147 int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
151 ulong data, len, checksum;
153 uint unc_len = 0x400000;
156 int (*appl)(int, char *[]);
157 image_header_t *hdr = &header;
159 s = getenv ("verify");
160 verify = (s && (*s == 'n')) ? 0 : 1;
165 addr = simple_strtoul(argv[1], NULL, 16);
168 SHOW_BOOT_PROGRESS (1);
169 printf ("## Booting image at %08lx ...\n", addr);
171 /* Copy header so we can blank CRC field for re-calculation */
172 #ifdef CONFIG_HAS_DATAFLASH
173 if (addr_dataflash(addr)){
174 read_dataflash(addr, sizeof(image_header_t), (char *)&header);
177 memmove (&header, (char *)addr, sizeof(image_header_t));
179 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
180 #ifdef __I386__ /* correct image format not implemented yet - fake it */
181 if (fake_header(hdr, (void*)addr, -1) != NULL) {
182 /* to compensate for the addition below */
183 addr -= sizeof(image_header_t);
185 * fake_header() does not fake the data crc
189 #endif /* __I386__ */
191 puts ("Bad Magic Number\n");
192 SHOW_BOOT_PROGRESS (-1);
196 SHOW_BOOT_PROGRESS (2);
198 data = (ulong)&header;
199 len = sizeof(image_header_t);
201 checksum = ntohl(hdr->ih_hcrc);
204 if (crc32 (0, (uchar *)data, len) != checksum) {
205 puts ("Bad Header Checksum\n");
206 SHOW_BOOT_PROGRESS (-2);
209 SHOW_BOOT_PROGRESS (3);
211 #ifdef CONFIG_HAS_DATAFLASH
212 if (addr_dataflash(addr)){
213 len = ntohl(hdr->ih_size) + sizeof(image_header_t);
214 read_dataflash(addr, len, (char *)CFG_LOAD_ADDR);
215 addr = CFG_LOAD_ADDR;
220 /* for multi-file images we need the data part, too */
221 print_image_hdr ((image_header_t *)addr);
223 data = addr + sizeof(image_header_t);
224 len = ntohl(hdr->ih_size);
227 puts (" Verifying Checksum ... ");
228 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
229 printf ("Bad Data CRC\n");
230 SHOW_BOOT_PROGRESS (-3);
235 SHOW_BOOT_PROGRESS (4);
237 len_ptr = (ulong *)data;
240 if (hdr->ih_arch != IH_CPU_PPC)
241 #elif defined(__ARM__)
242 if (hdr->ih_arch != IH_CPU_ARM)
243 #elif defined(__I386__)
244 if (hdr->ih_arch != IH_CPU_I386)
245 #elif defined(__mips__)
246 if (hdr->ih_arch != IH_CPU_MIPS)
247 #elif defined(__nios__)
248 if (hdr->ih_arch != IH_CPU_NIOS)
249 #elif defined(__M68K__)
250 if (hdr->ih_arch != IH_CPU_M68K)
251 #elif defined(__microblaze__)
252 if (hdr->ih_arch != IH_CPU_MICROBLAZE)
253 #elif defined(__nios2__)
254 if (hdr->ih_arch != IH_CPU_NIOS2)
255 #elif defined(__blackfin__)
256 if (hdr->ih_arch != IH_CPU_BLACKFIN)
258 # error Unknown CPU type
261 printf ("Unsupported Architecture 0x%x\n", hdr->ih_arch);
262 SHOW_BOOT_PROGRESS (-4);
265 SHOW_BOOT_PROGRESS (5);
267 switch (hdr->ih_type) {
268 case IH_TYPE_STANDALONE:
269 name = "Standalone Application";
270 /* A second argument overwrites the load address */
272 hdr->ih_load = htonl(simple_strtoul(argv[2], NULL, 16));
276 name = "Kernel Image";
279 name = "Multi-File Image";
280 len = ntohl(len_ptr[0]);
281 /* OS kernel is always the first image */
282 data += 8; /* kernel_len + terminator */
283 for (i=1; len_ptr[i]; ++i)
286 default: printf ("Wrong Image Type for %s command\n", cmdtp->name);
287 SHOW_BOOT_PROGRESS (-5);
290 SHOW_BOOT_PROGRESS (6);
293 * We have reached the point of no return: we are going to
294 * overwrite all exception vector code, so we cannot easily
295 * recover from any failures any more...
298 iflag = disable_interrupts();
300 #ifdef CONFIG_AMIGAONEG3SE
302 * We've possible left the caches enabled during
303 * bios emulation, so turn them off again
306 invalidate_l1_instruction_cache();
311 switch (hdr->ih_comp) {
313 if(ntohl(hdr->ih_load) == addr) {
314 printf (" XIP %s ... ", name);
316 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
318 void *to = (void *)ntohl(hdr->ih_load);
319 void *from = (void *)data;
321 printf (" Loading %s ... ", name);
324 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
326 memmove (to, from, tail);
331 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
332 memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len);
333 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
337 printf (" Uncompressing %s ... ", name);
338 if (gunzip ((void *)ntohl(hdr->ih_load), unc_len,
339 (uchar *)data, &len) != 0) {
340 puts ("GUNZIP ERROR - must RESET board to recover\n");
341 SHOW_BOOT_PROGRESS (-6);
342 do_reset (cmdtp, flag, argc, argv);
347 printf (" Uncompressing %s ... ", name);
349 * If we've got less than 4 MB of malloc() space,
350 * use slower decompression algorithm which requires
351 * at most 2300 KB of memory.
353 i = BZ2_bzBuffToBuffDecompress ((char*)ntohl(hdr->ih_load),
354 &unc_len, (char *)data, len,
355 CFG_MALLOC_LEN < (4096 * 1024), 0);
357 printf ("BUNZIP2 ERROR %d - must RESET board to recover\n", i);
358 SHOW_BOOT_PROGRESS (-6);
360 do_reset (cmdtp, flag, argc, argv);
363 #endif /* CONFIG_BZIP2 */
367 printf ("Unimplemented compression type %d\n", hdr->ih_comp);
368 SHOW_BOOT_PROGRESS (-7);
372 SHOW_BOOT_PROGRESS (7);
374 switch (hdr->ih_type) {
375 case IH_TYPE_STANDALONE:
379 /* load (and uncompress), but don't start if "autostart"
382 if (((s = getenv("autostart")) != NULL) && (strcmp(s,"no") == 0)) {
384 sprintf(buf, "%lX", len);
385 setenv("filesize", buf);
388 appl = (int (*)(int, char *[]))ntohl(hdr->ih_ep);
389 (*appl)(argc-1, &argv[1]);
398 printf ("Can't boot image type %d\n", hdr->ih_type);
399 SHOW_BOOT_PROGRESS (-8);
402 SHOW_BOOT_PROGRESS (8);
404 switch (hdr->ih_os) {
405 default: /* handled by (original) Linux case */
407 #ifdef CONFIG_SILENT_CONSOLE
408 fixup_silent_linux();
410 do_bootm_linux (cmdtp, flag, argc, argv,
411 addr, len_ptr, verify);
414 do_bootm_netbsd (cmdtp, flag, argc, argv,
415 addr, len_ptr, verify);
418 #ifdef CONFIG_LYNXKDI
420 do_bootm_lynxkdi (cmdtp, flag, argc, argv,
421 addr, len_ptr, verify);
426 do_bootm_rtems (cmdtp, flag, argc, argv,
427 addr, len_ptr, verify);
430 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
432 do_bootm_vxworks (cmdtp, flag, argc, argv,
433 addr, len_ptr, verify);
436 do_bootm_qnxelf (cmdtp, flag, argc, argv,
437 addr, len_ptr, verify);
439 #endif /* CFG_CMD_ELF */
442 do_bootm_artos (cmdtp, flag, argc, argv,
443 addr, len_ptr, verify);
448 SHOW_BOOT_PROGRESS (-9);
450 puts ("\n## Control returned to monitor - resetting...\n");
451 do_reset (cmdtp, flag, argc, argv);
457 bootm, CFG_MAXARGS, 1, do_bootm,
458 "bootm - boot application image from memory\n",
459 "[addr [arg ...]]\n - boot application image stored in memory\n"
460 "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
461 "\t'arg' can be the address of an initrd image\n"
464 #ifdef CONFIG_SILENT_CONSOLE
466 fixup_silent_linux ()
468 DECLARE_GLOBAL_DATA_PTR;
469 char buf[256], *start, *end;
470 char *cmdline = getenv ("bootargs");
472 /* Only fix cmdline when requested */
473 if (!(gd->flags & GD_FLG_SILENT))
476 debug ("before silent fix-up: %s\n", cmdline);
478 if ((start = strstr (cmdline, "console=")) != NULL) {
479 end = strchr (start, ' ');
480 strncpy (buf, cmdline, (start - cmdline + 8));
482 strcpy (buf + (start - cmdline + 8), end);
484 buf[start - cmdline + 8] = '\0';
486 strcpy (buf, cmdline);
487 strcat (buf, " console=");
490 strcpy (buf, "console=");
493 setenv ("bootargs", buf);
494 debug ("after silent fix-up: %s\n", buf);
496 #endif /* CONFIG_SILENT_CONSOLE */
498 #ifdef CONFIG_OF_FLAT_TREE
499 extern const unsigned char oftree_dtb[];
500 extern const unsigned int oftree_dtb_len;
505 do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
506 int argc, char *argv[],
511 DECLARE_GLOBAL_DATA_PTR;
515 ulong initrd_start, initrd_end;
516 ulong cmd_start, cmd_end;
519 int initrd_copy_to_ram = 1;
523 void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
524 image_header_t *hdr = &header;
525 #ifdef CONFIG_OF_FLAT_TREE
529 if ((s = getenv ("initrd_high")) != NULL) {
530 /* a value of "no" or a similar string will act like 0,
531 * turning the "load high" feature off. This is intentional.
533 initrd_high = simple_strtoul(s, NULL, 16);
534 if (initrd_high == ~0)
535 initrd_copy_to_ram = 0;
536 } else { /* not set, no restrictions to load high */
540 #ifdef CONFIG_LOGBUFFER
542 /* Prevent initrd from overwriting logbuffer */
543 if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
544 initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
545 debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
549 * Booting a (Linux) kernel image
551 * Allocate space for command line and board info - the
552 * address should be as high as possible within the reach of
553 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
554 * memory, which means far enough below the current stack
558 asm( "mr %0,1": "=r"(sp) : );
560 debug ("## Current stack ends at 0x%08lX ", sp);
562 sp -= 2048; /* just to be sure */
563 if (sp > CFG_BOOTMAPSZ)
567 debug ("=> set upper limit to 0x%08lX\n", sp);
569 cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
570 kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
572 if ((s = getenv("bootargs")) == NULL)
577 cmd_start = (ulong)&cmdline[0];
578 cmd_end = cmd_start + strlen(cmdline);
583 printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
585 do_bdinfo (NULL, 0, 0, NULL);
588 if ((s = getenv ("clocks_in_mhz")) != NULL) {
589 /* convert all clock information to MHz */
590 kbd->bi_intfreq /= 1000000L;
591 kbd->bi_busfreq /= 1000000L;
592 #if defined(CONFIG_MPC8220)
593 kbd->bi_inpfreq /= 1000000L;
594 kbd->bi_pcifreq /= 1000000L;
595 kbd->bi_pevfreq /= 1000000L;
596 kbd->bi_flbfreq /= 1000000L;
597 kbd->bi_vcofreq /= 1000000L;
599 #if defined(CONFIG_CPM2)
600 kbd->bi_cpmfreq /= 1000000L;
601 kbd->bi_brgfreq /= 1000000L;
602 kbd->bi_sccfreq /= 1000000L;
603 kbd->bi_vco /= 1000000L;
605 #if defined(CONFIG_MPC5xxx)
606 kbd->bi_ipbfreq /= 1000000L;
607 kbd->bi_pcifreq /= 1000000L;
608 #endif /* CONFIG_MPC5xxx */
611 kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong)) ntohl(hdr->ih_ep);
614 * Check if there is an initrd image
617 SHOW_BOOT_PROGRESS (9);
619 addr = simple_strtoul(argv[2], NULL, 16);
621 printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
623 /* Copy header so we can blank CRC field for re-calculation */
624 memmove (&header, (char *)addr, sizeof(image_header_t));
626 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
627 puts ("Bad Magic Number\n");
628 SHOW_BOOT_PROGRESS (-10);
629 do_reset (cmdtp, flag, argc, argv);
632 data = (ulong)&header;
633 len = sizeof(image_header_t);
635 checksum = ntohl(hdr->ih_hcrc);
638 if (crc32 (0, (uchar *)data, len) != checksum) {
639 puts ("Bad Header Checksum\n");
640 SHOW_BOOT_PROGRESS (-11);
641 do_reset (cmdtp, flag, argc, argv);
644 SHOW_BOOT_PROGRESS (10);
646 print_image_hdr (hdr);
648 data = addr + sizeof(image_header_t);
649 len = ntohl(hdr->ih_size);
653 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
654 ulong cdata = data, edata = cdata + len;
655 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
657 puts (" Verifying Checksum ... ");
659 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
661 while (cdata < edata) {
662 ulong chunk = edata - cdata;
666 csum = crc32 (csum, (uchar *)cdata, chunk);
671 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
672 csum = crc32 (0, (uchar *)data, len);
673 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
675 if (csum != ntohl(hdr->ih_dcrc)) {
676 puts ("Bad Data CRC\n");
677 SHOW_BOOT_PROGRESS (-12);
678 do_reset (cmdtp, flag, argc, argv);
683 SHOW_BOOT_PROGRESS (11);
685 if ((hdr->ih_os != IH_OS_LINUX) ||
686 (hdr->ih_arch != IH_CPU_PPC) ||
687 (hdr->ih_type != IH_TYPE_RAMDISK) ) {
688 puts ("No Linux PPC Ramdisk Image\n");
689 SHOW_BOOT_PROGRESS (-13);
690 do_reset (cmdtp, flag, argc, argv);
694 * Now check if we have a multifile image
696 } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
697 u_long tail = ntohl(len_ptr[0]) % 4;
700 SHOW_BOOT_PROGRESS (13);
702 /* skip kernel length and terminator */
703 data = (ulong)(&len_ptr[2]);
704 /* skip any additional image length fields */
705 for (i=1; len_ptr[i]; ++i)
707 /* add kernel length, and align */
708 data += ntohl(len_ptr[0]);
713 len = ntohl(len_ptr[1]);
719 SHOW_BOOT_PROGRESS (14);
725 debug ("No initrd\n");
729 if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
731 initrd_end = initrd_start + len;
733 initrd_start = (ulong)kbd - len;
734 initrd_start &= ~(4096 - 1); /* align on page */
740 * the inital ramdisk does not need to be within
741 * CFG_BOOTMAPSZ as it is not accessed until after
742 * the mm system is initialised.
744 * do the stack bottom calculation again and see if
745 * the initrd will fit just below the monitor stack
746 * bottom without overwriting the area allocated
747 * above for command line args and board info.
749 asm( "mr %0,1": "=r"(nsp) : );
750 nsp -= 2048; /* just to be sure */
752 if (nsp > initrd_high) /* limit as specified */
755 nsp &= ~(4096 - 1); /* align on page */
760 SHOW_BOOT_PROGRESS (12);
762 debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
763 data, data + len - 1, len, len);
765 initrd_end = initrd_start + len;
766 printf (" Loading Ramdisk to %08lx, end %08lx ... ",
767 initrd_start, initrd_end);
768 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
771 void *to = (void *)initrd_start;
772 void *from = (void *)data;
775 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
777 memmove (to, from, tail);
783 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
784 memmove ((void *)initrd_start, (void *)data, len);
785 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
793 #ifdef CONFIG_OF_FLAT_TREE
794 if (initrd_start == 0)
795 of_flat_tree = (char *)(((ulong)kbd - OF_FLAT_TREE_MAX_SIZE -
796 sizeof(bd_t)) & ~0xF);
798 of_flat_tree = (char *)((initrd_start - OF_FLAT_TREE_MAX_SIZE -
799 sizeof(bd_t)) & ~0xF);
802 debug ("## Transferring control to Linux (at address %08lx) ...\n",
805 SHOW_BOOT_PROGRESS (15);
807 #ifndef CONFIG_OF_FLAT_TREE
809 #if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
810 unlock_ram_in_cache();
814 * Linux Kernel Parameters:
815 * r3: ptr to board info data
816 * r4: initrd_start or 0 if no initrd
817 * r5: initrd_end - unused if r4 is 0
818 * r6: Start of command line string
819 * r7: End of command line string
821 (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
824 ft_setup(of_flat_tree, OF_FLAT_TREE_MAX_SIZE, kbd);
825 /* ft_dump_blob(of_flat_tree); */
827 #if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
828 unlock_ram_in_cache();
831 * Linux Kernel Parameters:
832 * r3: ptr to OF flat tree, followed by the board info data
833 * r4: initrd_start or 0 if no initrd
834 * r5: initrd_end - unused if r4 is 0
835 * r6: Start of command line string
836 * r7: End of command line string
838 (*kernel) ((bd_t *)of_flat_tree, initrd_start, initrd_end, cmd_start, cmd_end);
842 #endif /* CONFIG_PPC */
845 do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
846 int argc, char *argv[],
851 DECLARE_GLOBAL_DATA_PTR;
853 image_header_t *hdr = &header;
855 void (*loader)(bd_t *, image_header_t *, char *, char *);
856 image_header_t *img_addr;
862 * Booting a (NetBSD) kernel image
864 * This process is pretty similar to a standalone application:
865 * The (first part of an multi-) image must be a stage-2 loader,
866 * which in turn is responsible for loading & invoking the actual
867 * kernel. The only differences are the parameters being passed:
868 * besides the board info strucure, the loader expects a command
869 * line, the name of the console device, and (optionally) the
870 * address of the original image header.
874 if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]))
875 img_addr = (image_header_t *) addr;
879 #if defined (CONFIG_8xx_CONS_SMC1)
881 #elif defined (CONFIG_8xx_CONS_SMC2)
883 #elif defined (CONFIG_8xx_CONS_SCC2)
885 #elif defined (CONFIG_8xx_CONS_SCC3)
893 for (i=2, len=0 ; i<argc ; i+=1)
894 len += strlen (argv[i]) + 1;
895 cmdline = malloc (len);
897 for (i=2, len=0 ; i<argc ; i+=1) {
899 cmdline[len++] = ' ';
900 strcpy (&cmdline[len], argv[i]);
901 len += strlen (argv[i]);
903 } else if ((cmdline = getenv("bootargs")) == NULL) {
907 loader = (void (*)(bd_t *, image_header_t *, char *, char *)) ntohl(hdr->ih_ep);
909 printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
912 SHOW_BOOT_PROGRESS (15);
915 * NetBSD Stage-2 Loader Parameters:
916 * r3: ptr to board info data
919 * r6: boot args string
921 (*loader) (gd->bd, img_addr, consdev, cmdline);
924 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
926 /* Function that returns a character from the environment */
927 extern uchar (*env_get_char)(int);
930 do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
931 int argc, char *argv[],
936 DECLARE_GLOBAL_DATA_PTR;
940 int i, j, nxt, len, envno, envsz;
942 void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
943 image_header_t *hdr = &header;
946 * Booting an ARTOS kernel image + application
949 /* this used to be the top of memory, but was wrong... */
951 /* get stack pointer */
952 asm volatile ("mr %0,1" : "=r"(top) );
954 debug ("## Current stack ends at 0x%08lX ", top);
956 top -= 2048; /* just to be sure */
957 if (top > CFG_BOOTMAPSZ)
961 debug ("=> set upper limit to 0x%08lX\n", top);
963 /* first check the artos specific boot args, then the linux args*/
964 if ((s = getenv("abootargs")) == NULL && (s = getenv("bootargs")) == NULL)
967 /* get length of cmdline, and place it */
969 top = (top - (len + 1)) & ~0xF;
970 cmdline = (char *)top;
971 debug ("## cmdline at 0x%08lX ", top);
975 top = (top - sizeof(bd_t)) & ~0xF;
976 debug ("## bd at 0x%08lX ", top);
978 memcpy(kbd, gd->bd, sizeof(bd_t));
980 /* first find number of env entries, and their size */
983 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
984 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
987 envsz += (nxt - i) + 1; /* plus trailing zero */
989 envno++; /* plus the terminating zero */
990 debug ("## %u envvars total size %u ", envno, envsz);
992 top = (top - sizeof(char **)*envno) & ~0xF;
993 fwenv = (char **)top;
994 debug ("## fwenv at 0x%08lX ", top);
996 top = (top - envsz) & ~0xF;
1001 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
1002 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
1005 for (j = i; j < nxt; ++j)
1006 *s++ = env_get_char(j);
1009 *ss++ = NULL; /* terminate */
1011 entry = (void (*)(bd_t *, char *, char **, ulong))ntohl(hdr->ih_ep);
1012 (*entry)(kbd, cmdline, fwenv, top);
1017 #if (CONFIG_COMMANDS & CFG_CMD_BOOTD)
1018 int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1021 #ifndef CFG_HUSH_PARSER
1022 if (run_command (getenv ("bootcmd"), flag) < 0) rcode = 1;
1024 if (parse_string_outer(getenv("bootcmd"),
1025 FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0 ) rcode = 1;
1031 boot, 1, 1, do_bootd,
1032 "boot - boot default, i.e., run 'bootcmd'\n",
1036 /* keep old command name "bootd" for backward compatibility */
1038 bootd, 1, 1, do_bootd,
1039 "bootd - boot default, i.e., run 'bootcmd'\n",
1045 #if (CONFIG_COMMANDS & CFG_CMD_IMI)
1046 int do_iminfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1053 return image_info (load_addr);
1056 for (arg=1; arg <argc; ++arg) {
1057 addr = simple_strtoul(argv[arg], NULL, 16);
1058 if (image_info (addr) != 0) rcode = 1;
1063 static int image_info (ulong addr)
1065 ulong data, len, checksum;
1066 image_header_t *hdr = &header;
1068 printf ("\n## Checking Image at %08lx ...\n", addr);
1070 /* Copy header so we can blank CRC field for re-calculation */
1071 memmove (&header, (char *)addr, sizeof(image_header_t));
1073 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
1074 puts (" Bad Magic Number\n");
1078 data = (ulong)&header;
1079 len = sizeof(image_header_t);
1081 checksum = ntohl(hdr->ih_hcrc);
1084 if (crc32 (0, (uchar *)data, len) != checksum) {
1085 puts (" Bad Header Checksum\n");
1089 /* for multi-file images we need the data part, too */
1090 print_image_hdr ((image_header_t *)addr);
1092 data = addr + sizeof(image_header_t);
1093 len = ntohl(hdr->ih_size);
1095 puts (" Verifying Checksum ... ");
1096 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
1097 puts (" Bad Data CRC\n");
1105 iminfo, CFG_MAXARGS, 1, do_iminfo,
1106 "iminfo - print header information for application image\n",
1108 " - print header information for application image starting at\n"
1109 " address 'addr' in memory; this includes verification of the\n"
1110 " image contents (magic number, header and payload checksums)\n"
1113 #endif /* CFG_CMD_IMI */
1115 #if (CONFIG_COMMANDS & CFG_CMD_IMLS)
1116 /*-----------------------------------------------------------------------
1117 * List all images found in flash.
1119 int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1123 image_header_t *hdr;
1124 ulong data, len, checksum;
1126 for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) {
1127 if (info->flash_id == FLASH_UNKNOWN)
1129 for (j=0; j<info->sector_count; ++j) {
1131 if (!(hdr=(image_header_t *)info->start[j]) ||
1132 (ntohl(hdr->ih_magic) != IH_MAGIC))
1135 /* Copy header so we can blank CRC field for re-calculation */
1136 memmove (&header, (char *)hdr, sizeof(image_header_t));
1138 checksum = ntohl(header.ih_hcrc);
1141 if (crc32 (0, (uchar *)&header, sizeof(image_header_t))
1145 printf ("Image at %08lX:\n", (ulong)hdr);
1146 print_image_hdr( hdr );
1148 data = (ulong)hdr + sizeof(image_header_t);
1149 len = ntohl(hdr->ih_size);
1151 puts (" Verifying Checksum ... ");
1152 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
1153 puts (" Bad Data CRC\n");
1165 imls, 1, 1, do_imls,
1166 "imls - list all images found in flash\n",
1168 " - Prints information about all images found at sector\n"
1169 " boundaries in flash.\n"
1171 #endif /* CFG_CMD_IMLS */
1174 print_image_hdr (image_header_t *hdr)
1176 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
1177 time_t timestamp = (time_t)ntohl(hdr->ih_time);
1181 printf (" Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
1182 #if (CONFIG_COMMANDS & CFG_CMD_DATE) || defined(CONFIG_TIMESTAMP)
1183 to_tm (timestamp, &tm);
1184 printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
1185 tm.tm_year, tm.tm_mon, tm.tm_mday,
1186 tm.tm_hour, tm.tm_min, tm.tm_sec);
1187 #endif /* CFG_CMD_DATE, CONFIG_TIMESTAMP */
1188 puts (" Image Type: "); print_type(hdr);
1189 printf ("\n Data Size: %d Bytes = ", ntohl(hdr->ih_size));
1190 print_size (ntohl(hdr->ih_size), "\n");
1191 printf (" Load Address: %08x\n"
1192 " Entry Point: %08x\n",
1193 ntohl(hdr->ih_load), ntohl(hdr->ih_ep));
1195 if (hdr->ih_type == IH_TYPE_MULTI) {
1198 ulong *len_ptr = (ulong *)((ulong)hdr + sizeof(image_header_t));
1200 puts (" Contents:\n");
1201 for (i=0; (len = ntohl(*len_ptr)); ++i, ++len_ptr) {
1202 printf (" Image %d: %8ld Bytes = ", i, len);
1203 print_size (len, "\n");
1210 print_type (image_header_t *hdr)
1212 char *os, *arch, *type, *comp;
1214 switch (hdr->ih_os) {
1215 case IH_OS_INVALID: os = "Invalid OS"; break;
1216 case IH_OS_NETBSD: os = "NetBSD"; break;
1217 case IH_OS_LINUX: os = "Linux"; break;
1218 case IH_OS_VXWORKS: os = "VxWorks"; break;
1219 case IH_OS_QNX: os = "QNX"; break;
1220 case IH_OS_U_BOOT: os = "U-Boot"; break;
1221 case IH_OS_RTEMS: os = "RTEMS"; break;
1223 case IH_OS_ARTOS: os = "ARTOS"; break;
1225 #ifdef CONFIG_LYNXKDI
1226 case IH_OS_LYNXOS: os = "LynxOS"; break;
1228 default: os = "Unknown OS"; break;
1231 switch (hdr->ih_arch) {
1232 case IH_CPU_INVALID: arch = "Invalid CPU"; break;
1233 case IH_CPU_ALPHA: arch = "Alpha"; break;
1234 case IH_CPU_ARM: arch = "ARM"; break;
1235 case IH_CPU_I386: arch = "Intel x86"; break;
1236 case IH_CPU_IA64: arch = "IA64"; break;
1237 case IH_CPU_MIPS: arch = "MIPS"; break;
1238 case IH_CPU_MIPS64: arch = "MIPS 64 Bit"; break;
1239 case IH_CPU_PPC: arch = "PowerPC"; break;
1240 case IH_CPU_S390: arch = "IBM S390"; break;
1241 case IH_CPU_SH: arch = "SuperH"; break;
1242 case IH_CPU_SPARC: arch = "SPARC"; break;
1243 case IH_CPU_SPARC64: arch = "SPARC 64 Bit"; break;
1244 case IH_CPU_M68K: arch = "M68K"; break;
1245 case IH_CPU_MICROBLAZE: arch = "Microblaze"; break;
1246 case IH_CPU_NIOS: arch = "Nios"; break;
1247 case IH_CPU_NIOS2: arch = "Nios-II"; break;
1248 default: arch = "Unknown Architecture"; break;
1251 switch (hdr->ih_type) {
1252 case IH_TYPE_INVALID: type = "Invalid Image"; break;
1253 case IH_TYPE_STANDALONE:type = "Standalone Program"; break;
1254 case IH_TYPE_KERNEL: type = "Kernel Image"; break;
1255 case IH_TYPE_RAMDISK: type = "RAMDisk Image"; break;
1256 case IH_TYPE_MULTI: type = "Multi-File Image"; break;
1257 case IH_TYPE_FIRMWARE: type = "Firmware"; break;
1258 case IH_TYPE_SCRIPT: type = "Script"; break;
1259 default: type = "Unknown Image"; break;
1262 switch (hdr->ih_comp) {
1263 case IH_COMP_NONE: comp = "uncompressed"; break;
1264 case IH_COMP_GZIP: comp = "gzip compressed"; break;
1265 case IH_COMP_BZIP2: comp = "bzip2 compressed"; break;
1266 default: comp = "unknown compression"; break;
1269 printf ("%s %s %s (%s)", arch, os, type, comp);
1272 #define ZALLOC_ALIGNMENT 16
1274 static void *zalloc(void *x, unsigned items, unsigned size)
1279 size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
1286 static void zfree(void *x, void *addr, unsigned nb)
1292 #define EXTRA_FIELD 4
1294 #define COMMENT 0x10
1295 #define RESERVED 0xe0
1299 int gunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp)
1307 if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
1308 puts ("Error: Bad gzipped data\n");
1311 if ((flags & EXTRA_FIELD) != 0)
1312 i = 12 + src[10] + (src[11] << 8);
1313 if ((flags & ORIG_NAME) != 0)
1314 while (src[i++] != 0)
1316 if ((flags & COMMENT) != 0)
1317 while (src[i++] != 0)
1319 if ((flags & HEAD_CRC) != 0)
1322 puts ("Error: gunzip out of data in header\n");
1328 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
1329 s.outcb = (cb_func)WATCHDOG_RESET;
1332 #endif /* CONFIG_HW_WATCHDOG */
1334 r = inflateInit2(&s, -MAX_WBITS);
1336 printf ("Error: inflateInit2() returned %d\n", r);
1339 s.next_in = src + i;
1340 s.avail_in = *lenp - i;
1342 s.avail_out = dstlen;
1343 r = inflate(&s, Z_FINISH);
1344 if (r != Z_OK && r != Z_STREAM_END) {
1345 printf ("Error: inflate() returned %d\n", r);
1348 *lenp = s.next_out - (unsigned char *) dst;
1355 void bz_internal_error(int errcode)
1357 printf ("BZIP2 internal error %d\n", errcode);
1359 #endif /* CONFIG_BZIP2 */
1362 do_bootm_rtems (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1363 ulong addr, ulong *len_ptr, int verify)
1365 DECLARE_GLOBAL_DATA_PTR;
1366 image_header_t *hdr = &header;
1367 void (*entry_point)(bd_t *);
1369 entry_point = (void (*)(bd_t *)) ntohl(hdr->ih_ep);
1371 printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
1372 (ulong)entry_point);
1374 SHOW_BOOT_PROGRESS (15);
1378 * r3: ptr to board info data
1381 (*entry_point ) ( gd->bd );
1384 #if (CONFIG_COMMANDS & CFG_CMD_ELF)
1386 do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1387 ulong addr, ulong *len_ptr, int verify)
1389 image_header_t *hdr = &header;
1392 sprintf(str, "%x", ntohl(hdr->ih_ep)); /* write entry-point into string */
1393 setenv("loadaddr", str);
1394 do_bootvx(cmdtp, 0, 0, NULL);
1398 do_bootm_qnxelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1399 ulong addr, ulong *len_ptr, int verify)
1401 image_header_t *hdr = &header;
1402 char *local_args[2];
1405 sprintf(str, "%x", ntohl(hdr->ih_ep)); /* write entry-point into string */
1406 local_args[0] = argv[0];
1407 local_args[1] = str; /* and provide it via the arguments */
1408 do_bootelf(cmdtp, 0, 2, local_args);
1410 #endif /* CFG_CMD_ELF */
1412 #ifdef CONFIG_LYNXKDI
1414 do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag,
1415 int argc, char *argv[],
1420 lynxkdi_boot( &header );
1423 #endif /* CONFIG_LYNXKDI */