2 * (C) Copyright 2000-2006
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 #if defined(CONFIG_OF_LIBFDT)
40 #include <fdt_support.h>
42 #if defined(CONFIG_OF_FLAT_TREE)
46 DECLARE_GLOBAL_DATA_PTR;
49 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
51 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
55 #ifdef CFG_HUSH_PARSER
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 defined(CONFIG_CMD_IMI)
86 static int image_info (unsigned long addr);
89 #if defined(CONFIG_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 defined(CONFIG_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[] );
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 #ifndef CFG_BOOTM_LEN
144 #define CFG_BOOTM_LEN 0x800000 /* use 8MByte as default max gunzip size */
147 image_header_t header;
149 ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
151 int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
155 ulong data, len, checksum;
157 uint unc_len = CFG_BOOTM_LEN;
160 int (*appl)(int, char *[]);
161 image_header_t *hdr = &header;
163 s = getenv ("verify");
164 verify = (s && (*s == 'n')) ? 0 : 1;
169 addr = simple_strtoul(argv[1], NULL, 16);
172 show_boot_progress (1);
173 printf ("## Booting image at %08lx ...\n", addr);
175 /* Copy header so we can blank CRC field for re-calculation */
176 #ifdef CONFIG_HAS_DATAFLASH
177 if (addr_dataflash(addr)){
178 read_dataflash(addr, sizeof(image_header_t), (char *)&header);
181 memmove (&header, (char *)addr, sizeof(image_header_t));
183 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
184 #ifdef __I386__ /* correct image format not implemented yet - fake it */
185 if (fake_header(hdr, (void*)addr, -1) != NULL) {
186 /* to compensate for the addition below */
187 addr -= sizeof(image_header_t);
189 * fake_header() does not fake the data crc
193 #endif /* __I386__ */
195 puts ("Bad Magic Number\n");
196 show_boot_progress (-1);
200 show_boot_progress (2);
202 data = (ulong)&header;
203 len = sizeof(image_header_t);
205 checksum = ntohl(hdr->ih_hcrc);
208 if (crc32 (0, (uchar *)data, len) != checksum) {
209 puts ("Bad Header Checksum\n");
210 show_boot_progress (-2);
213 show_boot_progress (3);
215 #ifdef CONFIG_HAS_DATAFLASH
216 if (addr_dataflash(addr)){
217 len = ntohl(hdr->ih_size) + sizeof(image_header_t);
218 read_dataflash(addr, len, (char *)CFG_LOAD_ADDR);
219 addr = CFG_LOAD_ADDR;
224 /* for multi-file images we need the data part, too */
225 print_image_hdr ((image_header_t *)addr);
227 data = addr + sizeof(image_header_t);
228 len = ntohl(hdr->ih_size);
231 puts (" Verifying Checksum ... ");
232 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
233 printf ("Bad Data CRC\n");
234 show_boot_progress (-3);
239 show_boot_progress (4);
241 len_ptr = (ulong *)data;
244 if (hdr->ih_arch != IH_CPU_ARM)
245 #elif defined(__avr32__)
246 if (hdr->ih_arch != IH_CPU_AVR32)
247 #elif defined(__bfin__)
248 if (hdr->ih_arch != IH_CPU_BLACKFIN)
249 #elif defined(__I386__)
250 if (hdr->ih_arch != IH_CPU_I386)
251 #elif defined(__M68K__)
252 if (hdr->ih_arch != IH_CPU_M68K)
253 #elif defined(__microblaze__)
254 if (hdr->ih_arch != IH_CPU_MICROBLAZE)
255 #elif defined(__mips__)
256 if (hdr->ih_arch != IH_CPU_MIPS)
257 #elif defined(__nios__)
258 if (hdr->ih_arch != IH_CPU_NIOS)
259 #elif defined(__nios2__)
260 if (hdr->ih_arch != IH_CPU_NIOS2)
261 #elif defined(__PPC__)
262 if (hdr->ih_arch != IH_CPU_PPC)
264 # error Unknown CPU type
267 printf ("Unsupported Architecture 0x%x\n", hdr->ih_arch);
268 show_boot_progress (-4);
271 show_boot_progress (5);
273 switch (hdr->ih_type) {
274 case IH_TYPE_STANDALONE:
275 name = "Standalone Application";
276 /* A second argument overwrites the load address */
278 hdr->ih_load = htonl(simple_strtoul(argv[2], NULL, 16));
282 name = "Kernel Image";
285 name = "Multi-File Image";
286 len = ntohl(len_ptr[0]);
287 /* OS kernel is always the first image */
288 data += 8; /* kernel_len + terminator */
289 for (i=1; len_ptr[i]; ++i)
292 default: printf ("Wrong Image Type for %s command\n", cmdtp->name);
293 show_boot_progress (-5);
296 show_boot_progress (6);
299 * We have reached the point of no return: we are going to
300 * overwrite all exception vector code, so we cannot easily
301 * recover from any failures any more...
304 iflag = disable_interrupts();
306 #ifdef CONFIG_AMIGAONEG3SE
308 * We've possible left the caches enabled during
309 * bios emulation, so turn them off again
312 invalidate_l1_instruction_cache();
317 switch (hdr->ih_comp) {
319 if(ntohl(hdr->ih_load) == addr) {
320 printf (" XIP %s ... ", name);
322 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
324 void *to = (void *)ntohl(hdr->ih_load);
325 void *from = (void *)data;
327 printf (" Loading %s ... ", name);
330 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
332 memmove (to, from, tail);
337 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
338 memmove ((void *) ntohl(hdr->ih_load), (uchar *)data, len);
339 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
343 printf (" Uncompressing %s ... ", name);
344 if (gunzip ((void *)ntohl(hdr->ih_load), unc_len,
345 (uchar *)data, &len) != 0) {
346 puts ("GUNZIP ERROR - must RESET board to recover\n");
347 show_boot_progress (-6);
348 do_reset (cmdtp, flag, argc, argv);
353 printf (" Uncompressing %s ... ", name);
355 * If we've got less than 4 MB of malloc() space,
356 * use slower decompression algorithm which requires
357 * at most 2300 KB of memory.
359 i = BZ2_bzBuffToBuffDecompress ((char*)ntohl(hdr->ih_load),
360 &unc_len, (char *)data, len,
361 CFG_MALLOC_LEN < (4096 * 1024), 0);
363 printf ("BUNZIP2 ERROR %d - must RESET board to recover\n", i);
364 show_boot_progress (-6);
365 do_reset (cmdtp, flag, argc, argv);
368 #endif /* CONFIG_BZIP2 */
372 printf ("Unimplemented compression type %d\n", hdr->ih_comp);
373 show_boot_progress (-7);
377 show_boot_progress (7);
379 switch (hdr->ih_type) {
380 case IH_TYPE_STANDALONE:
384 /* load (and uncompress), but don't start if "autostart"
387 if (((s = getenv("autostart")) != NULL) && (strcmp(s,"no") == 0)) {
389 sprintf(buf, "%lX", len);
390 setenv("filesize", buf);
393 appl = (int (*)(int, char *[]))ntohl(hdr->ih_ep);
394 (*appl)(argc-1, &argv[1]);
403 printf ("Can't boot image type %d\n", hdr->ih_type);
404 show_boot_progress (-8);
407 show_boot_progress (8);
409 switch (hdr->ih_os) {
410 default: /* handled by (original) Linux case */
412 #ifdef CONFIG_SILENT_CONSOLE
413 fixup_silent_linux();
415 do_bootm_linux (cmdtp, flag, argc, argv,
416 addr, len_ptr, verify);
419 do_bootm_netbsd (cmdtp, flag, argc, argv,
420 addr, len_ptr, verify);
423 #ifdef CONFIG_LYNXKDI
425 do_bootm_lynxkdi (cmdtp, flag, argc, argv,
426 addr, len_ptr, verify);
431 do_bootm_rtems (cmdtp, flag, argc, argv,
432 addr, len_ptr, verify);
435 #if defined(CONFIG_CMD_ELF)
437 do_bootm_vxworks (cmdtp, flag, argc, argv,
438 addr, len_ptr, verify);
441 do_bootm_qnxelf (cmdtp, flag, argc, argv,
442 addr, len_ptr, verify);
447 do_bootm_artos (cmdtp, flag, argc, argv,
448 addr, len_ptr, verify);
453 show_boot_progress (-9);
455 puts ("\n## Control returned to monitor - resetting...\n");
456 do_reset (cmdtp, flag, argc, argv);
462 bootm, CFG_MAXARGS, 1, do_bootm,
463 "bootm - boot application image from memory\n",
464 "[addr [arg ...]]\n - boot application image stored in memory\n"
465 "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
466 "\t'arg' can be the address of an initrd image\n"
467 #if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT)
468 "\tWhen booting a Linux kernel which requires a flat device-tree\n"
469 "\ta third argument is required which is the address of the of the\n"
470 "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
471 "\tuse a '-' for the second argument. If you do not pass a third\n"
472 "\ta bd_info struct will be passed instead\n"
476 #ifdef CONFIG_SILENT_CONSOLE
478 fixup_silent_linux ()
480 char buf[256], *start, *end;
481 char *cmdline = getenv ("bootargs");
483 /* Only fix cmdline when requested */
484 if (!(gd->flags & GD_FLG_SILENT))
487 debug ("before silent fix-up: %s\n", cmdline);
489 if ((start = strstr (cmdline, "console=")) != NULL) {
490 end = strchr (start, ' ');
491 strncpy (buf, cmdline, (start - cmdline + 8));
493 strcpy (buf + (start - cmdline + 8), end);
495 buf[start - cmdline + 8] = '\0';
497 strcpy (buf, cmdline);
498 strcat (buf, " console=");
501 strcpy (buf, "console=");
504 setenv ("bootargs", buf);
505 debug ("after silent fix-up: %s\n", buf);
507 #endif /* CONFIG_SILENT_CONSOLE */
510 static void __attribute__((noinline))
511 do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
512 int argc, char *argv[],
519 ulong initrd_start, initrd_end;
520 ulong cmd_start, cmd_end;
523 int initrd_copy_to_ram = 1;
527 void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
528 image_header_t *hdr = &header;
529 #if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT)
530 char *of_flat_tree = NULL;
534 if ((s = getenv ("initrd_high")) != NULL) {
535 /* a value of "no" or a similar string will act like 0,
536 * turning the "load high" feature off. This is intentional.
538 initrd_high = simple_strtoul(s, NULL, 16);
539 if (initrd_high == ~0)
540 initrd_copy_to_ram = 0;
541 } else { /* not set, no restrictions to load high */
545 #ifdef CONFIG_LOGBUFFER
547 /* Prevent initrd from overwriting logbuffer */
548 if (initrd_high < (kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD))
549 initrd_high = kbd->bi_memsize-LOGBUFF_LEN-LOGBUFF_OVERHEAD;
550 debug ("## Logbuffer at 0x%08lX ", kbd->bi_memsize-LOGBUFF_LEN);
554 * Booting a (Linux) kernel image
556 * Allocate space for command line and board info - the
557 * address should be as high as possible within the reach of
558 * the kernel (see CFG_BOOTMAPSZ settings), but in unused
559 * memory, which means far enough below the current stack
563 asm( "mr %0,1": "=r"(sp) : );
565 debug ("## Current stack ends at 0x%08lX ", sp);
567 sp -= 2048; /* just to be sure */
568 if (sp > CFG_BOOTMAPSZ)
572 debug ("=> set upper limit to 0x%08lX\n", sp);
574 cmdline = (char *)((sp - CFG_BARGSIZE) & ~0xF);
575 kbd = (bd_t *)(((ulong)cmdline - sizeof(bd_t)) & ~0xF);
577 if ((s = getenv("bootargs")) == NULL)
582 cmd_start = (ulong)&cmdline[0];
583 cmd_end = cmd_start + strlen(cmdline);
588 printf ("## cmdline at 0x%08lX ... 0x%08lX\n", cmd_start, cmd_end);
590 do_bdinfo (NULL, 0, 0, NULL);
593 if ((s = getenv ("clocks_in_mhz")) != NULL) {
594 /* convert all clock information to MHz */
595 kbd->bi_intfreq /= 1000000L;
596 kbd->bi_busfreq /= 1000000L;
597 #if defined(CONFIG_MPC8220)
598 kbd->bi_inpfreq /= 1000000L;
599 kbd->bi_pcifreq /= 1000000L;
600 kbd->bi_pevfreq /= 1000000L;
601 kbd->bi_flbfreq /= 1000000L;
602 kbd->bi_vcofreq /= 1000000L;
604 #if defined(CONFIG_CPM2)
605 kbd->bi_cpmfreq /= 1000000L;
606 kbd->bi_brgfreq /= 1000000L;
607 kbd->bi_sccfreq /= 1000000L;
608 kbd->bi_vco /= 1000000L;
610 #if defined(CONFIG_MPC5xxx)
611 kbd->bi_ipbfreq /= 1000000L;
612 kbd->bi_pcifreq /= 1000000L;
613 #endif /* CONFIG_MPC5xxx */
616 kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong)) ntohl(hdr->ih_ep);
619 * Check if there is an initrd image
622 #if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT)
623 /* Look for a '-' which indicates to ignore the ramdisk argument */
624 if (argc >= 3 && strcmp(argv[2], "-") == 0) {
625 debug ("Skipping initrd\n");
631 debug ("Not skipping initrd\n");
632 show_boot_progress (9);
634 addr = simple_strtoul(argv[2], NULL, 16);
636 printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
638 /* Copy header so we can blank CRC field for re-calculation */
639 memmove (&header, (char *)addr, sizeof(image_header_t));
641 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
642 puts ("Bad Magic Number\n");
643 show_boot_progress (-10);
644 do_reset (cmdtp, flag, argc, argv);
647 data = (ulong)&header;
648 len = sizeof(image_header_t);
650 checksum = ntohl(hdr->ih_hcrc);
653 if (crc32 (0, (uchar *)data, len) != checksum) {
654 puts ("Bad Header Checksum\n");
655 show_boot_progress (-11);
656 do_reset (cmdtp, flag, argc, argv);
659 show_boot_progress (10);
661 print_image_hdr (hdr);
663 data = addr + sizeof(image_header_t);
664 len = ntohl(hdr->ih_size);
668 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
669 ulong cdata = data, edata = cdata + len;
670 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
672 puts (" Verifying Checksum ... ");
674 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
676 while (cdata < edata) {
677 ulong chunk = edata - cdata;
681 csum = crc32 (csum, (uchar *)cdata, chunk);
686 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
687 csum = crc32 (0, (uchar *)data, len);
688 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
690 if (csum != ntohl(hdr->ih_dcrc)) {
691 puts ("Bad Data CRC\n");
692 show_boot_progress (-12);
693 do_reset (cmdtp, flag, argc, argv);
698 show_boot_progress (11);
700 if ((hdr->ih_os != IH_OS_LINUX) ||
701 (hdr->ih_arch != IH_CPU_PPC) ||
702 (hdr->ih_type != IH_TYPE_RAMDISK) ) {
703 puts ("No Linux PPC Ramdisk Image\n");
704 show_boot_progress (-13);
705 do_reset (cmdtp, flag, argc, argv);
709 * Now check if we have a multifile image
711 } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
712 u_long tail = ntohl(len_ptr[0]) % 4;
715 show_boot_progress (13);
717 /* skip kernel length and terminator */
718 data = (ulong)(&len_ptr[2]);
719 /* skip any additional image length fields */
720 for (i=1; len_ptr[i]; ++i)
722 /* add kernel length, and align */
723 data += ntohl(len_ptr[0]);
728 len = ntohl(len_ptr[1]);
734 show_boot_progress (14);
739 #if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT)
741 of_flat_tree = (char *) simple_strtoul(argv[3], NULL, 16);
742 hdr = (image_header_t *)of_flat_tree;
743 #if defined(CONFIG_OF_FLAT_TREE)
744 if (*((ulong *)(of_flat_tree + sizeof(image_header_t))) != OF_DT_HEADER) {
746 if (fdt_check_header(of_flat_tree + sizeof(image_header_t)) != 0) {
749 if (addr2info((ulong)of_flat_tree) != NULL)
750 of_data = (ulong)of_flat_tree;
752 } else if (ntohl(hdr->ih_magic) == IH_MAGIC) {
753 printf("## Flat Device Tree at %08lX\n", hdr);
754 print_image_hdr(hdr);
756 if ((ntohl(hdr->ih_load) < ((unsigned long)hdr + ntohl(hdr->ih_size) + sizeof(hdr))) &&
757 ((ntohl(hdr->ih_load) + ntohl(hdr->ih_size)) > (unsigned long)hdr)) {
758 puts ("ERROR: fdt overwritten - "
759 "must RESET the board to recover.\n");
760 do_reset (cmdtp, flag, argc, argv);
763 puts (" Verifying Checksum ... ");
764 memmove (&header, (char *)hdr, sizeof(image_header_t));
765 checksum = ntohl(header.ih_hcrc);
768 if(checksum != crc32(0, (uchar *)&header, sizeof(image_header_t))) {
769 puts ("ERROR: fdt header checksum invalid - "
770 "must RESET the board to recover.\n");
771 do_reset (cmdtp, flag, argc, argv);
774 checksum = ntohl(hdr->ih_dcrc);
775 addr = (ulong)((uchar *)(hdr) + sizeof(image_header_t));
777 if(checksum != crc32(0, (uchar *)addr, ntohl(hdr->ih_size))) {
778 puts ("ERROR: fdt checksum invalid - "
779 "must RESET the board to recover.\n");
780 do_reset (cmdtp, flag, argc, argv);
784 if (ntohl(hdr->ih_type) != IH_TYPE_FLATDT) {
785 puts ("ERROR: uImage is not a fdt - "
786 "must RESET the board to recover.\n");
787 do_reset (cmdtp, flag, argc, argv);
789 if (ntohl(hdr->ih_comp) != IH_COMP_NONE) {
790 puts ("ERROR: uImage is compressed - "
791 "must RESET the board to recover.\n");
792 do_reset (cmdtp, flag, argc, argv);
794 #if defined(CONFIG_OF_FLAT_TREE)
795 if (*((ulong *)(of_flat_tree + sizeof(image_header_t))) != OF_DT_HEADER) {
797 if (fdt_check_header(of_flat_tree + sizeof(image_header_t)) != 0) {
799 puts ("ERROR: uImage data is not a fdt - "
800 "must RESET the board to recover.\n");
801 do_reset (cmdtp, flag, argc, argv);
804 memmove((void *)ntohl(hdr->ih_load),
805 (void *)(of_flat_tree + sizeof(image_header_t)),
806 ntohl(hdr->ih_size));
807 of_flat_tree = (char *)ntohl(hdr->ih_load);
809 puts ("Did not find a flat Flat Device Tree.\n"
810 "Must RESET the board to recover.\n");
811 do_reset (cmdtp, flag, argc, argv);
813 printf (" Booting using the fdt at 0x%x\n",
815 } else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]) && (len_ptr[2])) {
816 u_long tail = ntohl(len_ptr[0]) % 4;
819 /* skip kernel length, initrd length, and terminator */
820 of_data = (ulong)(&len_ptr[3]);
821 /* skip any additional image length fields */
822 for (i=2; len_ptr[i]; ++i)
824 /* add kernel length, and align */
825 of_data += ntohl(len_ptr[0]);
830 /* add initrd length, and align */
831 tail = ntohl(len_ptr[1]) % 4;
832 of_data += ntohl(len_ptr[1]);
837 #if defined(CONFIG_OF_FLAT_TREE)
838 if (*((ulong *)(of_flat_tree + sizeof(image_header_t))) != OF_DT_HEADER) {
840 if (fdt_check_header(of_flat_tree + sizeof(image_header_t)) != 0) {
842 puts ("ERROR: image is not a fdt - "
843 "must RESET the board to recover.\n");
844 do_reset (cmdtp, flag, argc, argv);
847 #if defined(CONFIG_OF_FLAT_TREE)
848 if (((struct boot_param_header *)of_data)->totalsize != ntohl(len_ptr[2])) {
850 if (be32_to_cpu(fdt_totalsize(of_data)) != ntohl(len_ptr[2])) {
852 puts ("ERROR: fdt size != image size - "
853 "must RESET the board to recover.\n");
854 do_reset (cmdtp, flag, argc, argv);
859 debug ("No initrd\n");
863 if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
865 initrd_end = initrd_start + len;
867 initrd_start = (ulong)kbd - len;
868 initrd_start &= ~(4096 - 1); /* align on page */
874 * the inital ramdisk does not need to be within
875 * CFG_BOOTMAPSZ as it is not accessed until after
876 * the mm system is initialised.
878 * do the stack bottom calculation again and see if
879 * the initrd will fit just below the monitor stack
880 * bottom without overwriting the area allocated
881 * above for command line args and board info.
883 asm( "mr %0,1": "=r"(nsp) : );
884 nsp -= 2048; /* just to be sure */
886 if (nsp > initrd_high) /* limit as specified */
889 nsp &= ~(4096 - 1); /* align on page */
894 show_boot_progress (12);
896 debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
897 data, data + len - 1, len, len);
899 initrd_end = initrd_start + len;
900 printf (" Loading Ramdisk to %08lx, end %08lx ... ",
901 initrd_start, initrd_end);
902 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
905 void *to = (void *)initrd_start;
906 void *from = (void *)data;
909 size_t tail = (l > CHUNKSZ) ? CHUNKSZ : l;
911 memmove (to, from, tail);
917 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
918 memmove ((void *)initrd_start, (void *)data, len);
919 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
929 * The blob must be within CFG_BOOTMAPSZ,
930 * so we flag it to be copied if it is
932 if (of_flat_tree >= (char *)CFG_BOOTMAPSZ)
933 of_data = of_flat_tree;
936 #if defined(CONFIG_OF_LIBFDT)
937 /* move of_flat_tree if needed */
940 ulong of_start, of_len;
942 of_len = be32_to_cpu(fdt_totalsize(of_data));
944 /* position on a 4K boundary before the kbd */
945 of_start = (ulong)kbd - of_len;
946 of_start &= ~(4096 - 1); /* align on page */
947 debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
948 of_data, of_data + of_len - 1, of_len, of_len);
950 of_flat_tree = (char *)of_start;
951 printf (" Loading Device Tree to %08lx, end %08lx ... ",
952 of_start, of_start + of_len - 1);
953 err = fdt_open_into((void *)of_data, (void *)of_start, of_len);
955 puts ("ERROR: fdt move failed - "
956 "must RESET the board to recover.\n");
957 do_reset (cmdtp, flag, argc, argv);
961 * Add the chosen node if it doesn't exist, add the env and bd_t
962 * if the user wants it (the logic is in the subroutines).
964 if (fdt_chosen(of_flat_tree, initrd_start, initrd_end, 0) < 0) {
965 puts ("ERROR: /chosen node create failed - "
966 "must RESET the board to recover.\n");
967 do_reset (cmdtp, flag, argc, argv);
969 #ifdef CONFIG_OF_HAS_UBOOT_ENV
970 if (fdt_env(of_flat_tree) < 0) {
971 puts ("ERROR: /u-boot-env node create failed - "
972 "must RESET the board to recover.\n");
973 do_reset (cmdtp, flag, argc, argv);
976 #ifdef CONFIG_OF_HAS_BD_T
977 if (fdt_bd_t(of_flat_tree) < 0) {
978 puts ("ERROR: /bd_t node create failed - "
979 "must RESET the board to recover.\n");
980 do_reset (cmdtp, flag, argc, argv);
983 #ifdef CONFIG_OF_BOARD_SETUP
984 /* Call the board-specific fixup routine */
985 ft_board_setup(of_flat_tree, gd->bd);
987 #endif /* CONFIG_OF_LIBFDT */
988 #if defined(CONFIG_OF_FLAT_TREE)
989 /* move of_flat_tree if needed */
991 ulong of_start, of_len;
992 of_len = ((struct boot_param_header *)of_data)->totalsize;
994 /* provide extra 8k pad */
995 of_start = (ulong)kbd - of_len - 8192;
996 of_start &= ~(4096 - 1); /* align on page */
997 debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
998 of_data, of_data + of_len - 1, of_len, of_len);
1000 of_flat_tree = (char *)of_start;
1001 printf (" Loading Device Tree to %08lx, end %08lx ... ",
1002 of_start, of_start + of_len - 1);
1003 memmove ((void *)of_start, (void *)of_data, of_len);
1006 * Create the /chosen node and modify the blob with board specific
1009 ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
1010 /* ft_dump_blob(of_flat_tree); */
1012 debug ("## Transferring control to Linux (at address %08lx) ...\n",
1015 show_boot_progress (15);
1017 #if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
1018 unlock_ram_in_cache();
1021 #if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT)
1022 if (of_flat_tree) { /* device tree; boot new style */
1024 * Linux Kernel Parameters (passing device tree):
1025 * r3: pointer to the fdt, followed by the board info data
1026 * r4: physical pointer to the kernel itself
1031 (*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
1032 /* does not return */
1036 * Linux Kernel Parameters (passing board info data):
1037 * r3: ptr to board info data
1038 * r4: initrd_start or 0 if no initrd
1039 * r5: initrd_end - unused if r4 is 0
1040 * r6: Start of command line string
1041 * r7: End of command line string
1043 (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
1044 /* does not return */
1046 #endif /* CONFIG_PPC */
1049 do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
1050 int argc, char *argv[],
1055 image_header_t *hdr = &header;
1057 void (*loader)(bd_t *, image_header_t *, char *, char *);
1058 image_header_t *img_addr;
1064 * Booting a (NetBSD) kernel image
1066 * This process is pretty similar to a standalone application:
1067 * The (first part of an multi-) image must be a stage-2 loader,
1068 * which in turn is responsible for loading & invoking the actual
1069 * kernel. The only differences are the parameters being passed:
1070 * besides the board info strucure, the loader expects a command
1071 * line, the name of the console device, and (optionally) the
1072 * address of the original image header.
1076 if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1]))
1077 img_addr = (image_header_t *) addr;
1081 #if defined (CONFIG_8xx_CONS_SMC1)
1083 #elif defined (CONFIG_8xx_CONS_SMC2)
1085 #elif defined (CONFIG_8xx_CONS_SCC2)
1087 #elif defined (CONFIG_8xx_CONS_SCC3)
1095 for (i=2, len=0 ; i<argc ; i+=1)
1096 len += strlen (argv[i]) + 1;
1097 cmdline = malloc (len);
1099 for (i=2, len=0 ; i<argc ; i+=1) {
1101 cmdline[len++] = ' ';
1102 strcpy (&cmdline[len], argv[i]);
1103 len += strlen (argv[i]);
1105 } else if ((cmdline = getenv("bootargs")) == NULL) {
1109 loader = (void (*)(bd_t *, image_header_t *, char *, char *)) ntohl(hdr->ih_ep);
1111 printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
1114 show_boot_progress (15);
1117 * NetBSD Stage-2 Loader Parameters:
1118 * r3: ptr to board info data
1120 * r5: console device
1121 * r6: boot args string
1123 (*loader) (gd->bd, img_addr, consdev, cmdline);
1126 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
1128 /* Function that returns a character from the environment */
1129 extern uchar (*env_get_char)(int);
1132 do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
1133 int argc, char *argv[],
1141 int i, j, nxt, len, envno, envsz;
1143 void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
1144 image_header_t *hdr = &header;
1147 * Booting an ARTOS kernel image + application
1150 /* this used to be the top of memory, but was wrong... */
1152 /* get stack pointer */
1153 asm volatile ("mr %0,1" : "=r"(top) );
1155 debug ("## Current stack ends at 0x%08lX ", top);
1157 top -= 2048; /* just to be sure */
1158 if (top > CFG_BOOTMAPSZ)
1159 top = CFG_BOOTMAPSZ;
1162 debug ("=> set upper limit to 0x%08lX\n", top);
1164 /* first check the artos specific boot args, then the linux args*/
1165 if ((s = getenv("abootargs")) == NULL && (s = getenv("bootargs")) == NULL)
1168 /* get length of cmdline, and place it */
1170 top = (top - (len + 1)) & ~0xF;
1171 cmdline = (char *)top;
1172 debug ("## cmdline at 0x%08lX ", top);
1176 top = (top - sizeof(bd_t)) & ~0xF;
1177 debug ("## bd at 0x%08lX ", top);
1179 memcpy(kbd, gd->bd, sizeof(bd_t));
1181 /* first find number of env entries, and their size */
1184 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
1185 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
1188 envsz += (nxt - i) + 1; /* plus trailing zero */
1190 envno++; /* plus the terminating zero */
1191 debug ("## %u envvars total size %u ", envno, envsz);
1193 top = (top - sizeof(char **)*envno) & ~0xF;
1194 fwenv = (char **)top;
1195 debug ("## fwenv at 0x%08lX ", top);
1197 top = (top - envsz) & ~0xF;
1202 for (i = 0; env_get_char(i) != '\0'; i = nxt + 1) {
1203 for (nxt = i; env_get_char(nxt) != '\0'; ++nxt)
1206 for (j = i; j < nxt; ++j)
1207 *s++ = env_get_char(j);
1210 *ss++ = NULL; /* terminate */
1212 entry = (void (*)(bd_t *, char *, char **, ulong))ntohl(hdr->ih_ep);
1213 (*entry)(kbd, cmdline, fwenv, top);
1218 #if defined(CONFIG_CMD_BOOTD)
1219 int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1222 #ifndef CFG_HUSH_PARSER
1223 if (run_command (getenv ("bootcmd"), flag) < 0) rcode = 1;
1225 if (parse_string_outer(getenv("bootcmd"),
1226 FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0 ) rcode = 1;
1232 boot, 1, 1, do_bootd,
1233 "boot - boot default, i.e., run 'bootcmd'\n",
1237 /* keep old command name "bootd" for backward compatibility */
1239 bootd, 1, 1, do_bootd,
1240 "bootd - boot default, i.e., run 'bootcmd'\n",
1246 #if defined(CONFIG_CMD_IMI)
1247 int do_iminfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1254 return image_info (load_addr);
1257 for (arg=1; arg <argc; ++arg) {
1258 addr = simple_strtoul(argv[arg], NULL, 16);
1259 if (image_info (addr) != 0) rcode = 1;
1264 static int image_info (ulong addr)
1266 ulong data, len, checksum;
1267 image_header_t *hdr = &header;
1269 printf ("\n## Checking Image at %08lx ...\n", addr);
1271 /* Copy header so we can blank CRC field for re-calculation */
1272 memmove (&header, (char *)addr, sizeof(image_header_t));
1274 if (ntohl(hdr->ih_magic) != IH_MAGIC) {
1275 puts (" Bad Magic Number\n");
1279 data = (ulong)&header;
1280 len = sizeof(image_header_t);
1282 checksum = ntohl(hdr->ih_hcrc);
1285 if (crc32 (0, (uchar *)data, len) != checksum) {
1286 puts (" Bad Header Checksum\n");
1290 /* for multi-file images we need the data part, too */
1291 print_image_hdr ((image_header_t *)addr);
1293 data = addr + sizeof(image_header_t);
1294 len = ntohl(hdr->ih_size);
1296 puts (" Verifying Checksum ... ");
1297 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
1298 puts (" Bad Data CRC\n");
1306 iminfo, CFG_MAXARGS, 1, do_iminfo,
1307 "iminfo - print header information for application image\n",
1309 " - print header information for application image starting at\n"
1310 " address 'addr' in memory; this includes verification of the\n"
1311 " image contents (magic number, header and payload checksums)\n"
1316 #if defined(CONFIG_CMD_IMLS)
1317 /*-----------------------------------------------------------------------
1318 * List all images found in flash.
1320 int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1324 image_header_t *hdr;
1325 ulong data, len, checksum;
1327 for (i=0, info=&flash_info[0]; i<CFG_MAX_FLASH_BANKS; ++i, ++info) {
1328 if (info->flash_id == FLASH_UNKNOWN)
1330 for (j=0; j<info->sector_count; ++j) {
1332 if (!(hdr=(image_header_t *)info->start[j]) ||
1333 (ntohl(hdr->ih_magic) != IH_MAGIC))
1336 /* Copy header so we can blank CRC field for re-calculation */
1337 memmove (&header, (char *)hdr, sizeof(image_header_t));
1339 checksum = ntohl(header.ih_hcrc);
1342 if (crc32 (0, (uchar *)&header, sizeof(image_header_t))
1346 printf ("Image at %08lX:\n", (ulong)hdr);
1347 print_image_hdr( hdr );
1349 data = (ulong)hdr + sizeof(image_header_t);
1350 len = ntohl(hdr->ih_size);
1352 puts (" Verifying Checksum ... ");
1353 if (crc32 (0, (uchar *)data, len) != ntohl(hdr->ih_dcrc)) {
1354 puts (" Bad Data CRC\n");
1366 imls, 1, 1, do_imls,
1367 "imls - list all images found in flash\n",
1369 " - Prints information about all images found at sector\n"
1370 " boundaries in flash.\n"
1375 print_image_hdr (image_header_t *hdr)
1377 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
1378 time_t timestamp = (time_t)ntohl(hdr->ih_time);
1382 printf (" Image Name: %.*s\n", IH_NMLEN, hdr->ih_name);
1383 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
1384 to_tm (timestamp, &tm);
1385 printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
1386 tm.tm_year, tm.tm_mon, tm.tm_mday,
1387 tm.tm_hour, tm.tm_min, tm.tm_sec);
1389 puts (" Image Type: "); print_type(hdr);
1390 printf ("\n Data Size: %d Bytes = ", ntohl(hdr->ih_size));
1391 print_size (ntohl(hdr->ih_size), "\n");
1392 printf (" Load Address: %08x\n"
1393 " Entry Point: %08x\n",
1394 ntohl(hdr->ih_load), ntohl(hdr->ih_ep));
1396 if (hdr->ih_type == IH_TYPE_MULTI) {
1399 ulong *len_ptr = (ulong *)((ulong)hdr + sizeof(image_header_t));
1401 puts (" Contents:\n");
1402 for (i=0; (len = ntohl(*len_ptr)); ++i, ++len_ptr) {
1403 printf (" Image %d: %8ld Bytes = ", i, len);
1404 print_size (len, "\n");
1411 print_type (image_header_t *hdr)
1413 char *os, *arch, *type, *comp;
1415 switch (hdr->ih_os) {
1416 case IH_OS_INVALID: os = "Invalid OS"; break;
1417 case IH_OS_NETBSD: os = "NetBSD"; break;
1418 case IH_OS_LINUX: os = "Linux"; break;
1419 case IH_OS_VXWORKS: os = "VxWorks"; break;
1420 case IH_OS_QNX: os = "QNX"; break;
1421 case IH_OS_U_BOOT: os = "U-Boot"; break;
1422 case IH_OS_RTEMS: os = "RTEMS"; break;
1424 case IH_OS_ARTOS: os = "ARTOS"; break;
1426 #ifdef CONFIG_LYNXKDI
1427 case IH_OS_LYNXOS: os = "LynxOS"; break;
1429 default: os = "Unknown OS"; break;
1432 switch (hdr->ih_arch) {
1433 case IH_CPU_INVALID: arch = "Invalid CPU"; break;
1434 case IH_CPU_ALPHA: arch = "Alpha"; break;
1435 case IH_CPU_ARM: arch = "ARM"; break;
1436 case IH_CPU_AVR32: arch = "AVR32"; break;
1437 case IH_CPU_BLACKFIN: arch = "Blackfin"; break;
1438 case IH_CPU_I386: arch = "Intel x86"; break;
1439 case IH_CPU_IA64: arch = "IA64"; break;
1440 case IH_CPU_M68K: arch = "M68K"; break;
1441 case IH_CPU_MICROBLAZE: arch = "Microblaze"; break;
1442 case IH_CPU_MIPS64: arch = "MIPS 64 Bit"; break;
1443 case IH_CPU_MIPS: arch = "MIPS"; break;
1444 case IH_CPU_NIOS2: arch = "Nios-II"; break;
1445 case IH_CPU_NIOS: arch = "Nios"; break;
1446 case IH_CPU_PPC: arch = "PowerPC"; break;
1447 case IH_CPU_S390: arch = "IBM S390"; break;
1448 case IH_CPU_SH: arch = "SuperH"; break;
1449 case IH_CPU_SPARC64: arch = "SPARC 64 Bit"; break;
1450 case IH_CPU_SPARC: arch = "SPARC"; break;
1451 default: arch = "Unknown Architecture"; break;
1454 switch (hdr->ih_type) {
1455 case IH_TYPE_INVALID: type = "Invalid Image"; break;
1456 case IH_TYPE_STANDALONE:type = "Standalone Program"; break;
1457 case IH_TYPE_KERNEL: type = "Kernel Image"; break;
1458 case IH_TYPE_RAMDISK: type = "RAMDisk Image"; break;
1459 case IH_TYPE_MULTI: type = "Multi-File Image"; break;
1460 case IH_TYPE_FIRMWARE: type = "Firmware"; break;
1461 case IH_TYPE_SCRIPT: type = "Script"; break;
1462 case IH_TYPE_FLATDT: type = "Flat Device Tree"; break;
1463 default: type = "Unknown Image"; break;
1466 switch (hdr->ih_comp) {
1467 case IH_COMP_NONE: comp = "uncompressed"; break;
1468 case IH_COMP_GZIP: comp = "gzip compressed"; break;
1469 case IH_COMP_BZIP2: comp = "bzip2 compressed"; break;
1470 default: comp = "unknown compression"; break;
1473 printf ("%s %s %s (%s)", arch, os, type, comp);
1476 #define ZALLOC_ALIGNMENT 16
1478 static void *zalloc(void *x, unsigned items, unsigned size)
1483 size = (size + ZALLOC_ALIGNMENT - 1) & ~(ZALLOC_ALIGNMENT - 1);
1490 static void zfree(void *x, void *addr, unsigned nb)
1496 #define EXTRA_FIELD 4
1498 #define COMMENT 0x10
1499 #define RESERVED 0xe0
1503 int gunzip(void *dst, int dstlen, unsigned char *src, unsigned long *lenp)
1511 if (src[2] != DEFLATED || (flags & RESERVED) != 0) {
1512 puts ("Error: Bad gzipped data\n");
1515 if ((flags & EXTRA_FIELD) != 0)
1516 i = 12 + src[10] + (src[11] << 8);
1517 if ((flags & ORIG_NAME) != 0)
1518 while (src[i++] != 0)
1520 if ((flags & COMMENT) != 0)
1521 while (src[i++] != 0)
1523 if ((flags & HEAD_CRC) != 0)
1526 puts ("Error: gunzip out of data in header\n");
1532 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
1533 s.outcb = (cb_func)WATCHDOG_RESET;
1536 #endif /* CONFIG_HW_WATCHDOG */
1538 r = inflateInit2(&s, -MAX_WBITS);
1540 printf ("Error: inflateInit2() returned %d\n", r);
1543 s.next_in = src + i;
1544 s.avail_in = *lenp - i;
1546 s.avail_out = dstlen;
1547 r = inflate(&s, Z_FINISH);
1548 if (r != Z_OK && r != Z_STREAM_END) {
1549 printf ("Error: inflate() returned %d\n", r);
1552 *lenp = s.next_out - (unsigned char *) dst;
1559 void bz_internal_error(int errcode)
1561 printf ("BZIP2 internal error %d\n", errcode);
1563 #endif /* CONFIG_BZIP2 */
1566 do_bootm_rtems (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1567 ulong addr, ulong *len_ptr, int verify)
1569 image_header_t *hdr = &header;
1570 void (*entry_point)(bd_t *);
1572 entry_point = (void (*)(bd_t *)) ntohl(hdr->ih_ep);
1574 printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
1575 (ulong)entry_point);
1577 show_boot_progress (15);
1581 * r3: ptr to board info data
1584 (*entry_point ) ( gd->bd );
1587 #if defined(CONFIG_CMD_ELF)
1589 do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1590 ulong addr, ulong *len_ptr, int verify)
1592 image_header_t *hdr = &header;
1595 sprintf(str, "%x", ntohl(hdr->ih_ep)); /* write entry-point into string */
1596 setenv("loadaddr", str);
1597 do_bootvx(cmdtp, 0, 0, NULL);
1601 do_bootm_qnxelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
1602 ulong addr, ulong *len_ptr, int verify)
1604 image_header_t *hdr = &header;
1605 char *local_args[2];
1608 sprintf(str, "%x", ntohl(hdr->ih_ep)); /* write entry-point into string */
1609 local_args[0] = argv[0];
1610 local_args[1] = str; /* and provide it via the arguments */
1611 do_bootelf(cmdtp, 0, 2, local_args);
1615 #ifdef CONFIG_LYNXKDI
1617 do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag,
1618 int argc, char *argv[],
1623 lynxkdi_boot( &header );
1626 #endif /* CONFIG_LYNXKDI */