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,
36 #include <environment.h>
38 #include <asm/byteorder.h>
40 #ifdef CFG_HUSH_PARSER
44 DECLARE_GLOBAL_DATA_PTR;
46 extern int gunzip (void *dst, int dstlen, unsigned char *src, unsigned long *lenp);
48 #define CFG_BOOTM_LEN 0x800000 /* use 8MByte as default max gunzip size */
52 extern void bz_internal_error(int);
55 #if defined(CONFIG_CMD_IMI)
56 static int image_info (unsigned long addr);
59 #if defined(CONFIG_CMD_IMLS)
61 extern flash_info_t flash_info[]; /* info for FLASH chips */
62 static int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
65 #ifdef CONFIG_SILENT_CONSOLE
66 static void fixup_silent_linux (void);
69 static void *get_kernel (cmd_tbl_t *cmdtp, int flag,int argc, char *argv[],
70 bootm_headers_t *images, ulong *os_data, ulong *os_len);
71 extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
74 * Continue booting an OS image; caller already has:
75 * - copied image header to global variable `header'
76 * - checked header magic number, checksums (both header & image),
77 * - verified image architecture (PPC) and type (KERNEL or MULTI),
78 * - loaded (first part of) image to header load address,
79 * - disabled interrupts.
81 typedef void boot_os_fn (cmd_tbl_t *cmdtp, int flag,
82 int argc, char *argv[],
83 bootm_headers_t *images); /* pointers to os/initrd/fdt */
85 extern boot_os_fn do_bootm_linux;
86 static boot_os_fn do_bootm_netbsd;
87 #if defined(CONFIG_LYNXKDI)
88 static boot_os_fn do_bootm_lynxkdi;
89 extern void lynxkdi_boot (image_header_t *);
91 static boot_os_fn do_bootm_rtems;
92 #if defined(CONFIG_CMD_ELF)
93 static boot_os_fn do_bootm_vxworks;
94 static boot_os_fn do_bootm_qnxelf;
95 int do_bootvx (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
96 int do_bootelf (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
98 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
99 extern uchar (*env_get_char)(int); /* Returns a character from the environment */
100 static boot_os_fn do_bootm_artos;
103 ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
104 static bootm_headers_t images; /* pointers to os/initrd/fdt images */
107 /*******************************************************************/
108 /* bootm - boot application image from image in memory */
109 /*******************************************************************/
110 int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
113 const char *type_name;
114 uint unc_len = CFG_BOOTM_LEN;
115 uint8_t comp, type, os;
118 ulong os_data, os_len;
119 ulong image_start, image_end;
120 ulong load_start, load_end;
124 memset ((void *)&images, 0, sizeof (images));
125 images.verify = getenv_verify();
126 images.autostart = getenv_autostart();
131 #ifdef CFG_SDRAM_BASE
132 lmb_add(&lmb, CFG_SDRAM_BASE, gd->bd->bi_memsize);
134 lmb_add(&lmb, 0, gd->bd->bi_memsize);
137 /* get kernel image header, start address and length */
138 os_hdr = get_kernel (cmdtp, flag, argc, argv,
139 &images, &os_data, &os_len);
143 show_boot_progress (6);
145 /* get image parameters */
146 switch (gen_image_get_format (os_hdr)) {
147 case IMAGE_FORMAT_LEGACY:
148 type = image_get_type (os_hdr);
149 comp = image_get_comp (os_hdr);
150 os = image_get_os (os_hdr);
152 image_end = image_get_image_end (os_hdr);
153 load_start = image_get_load (os_hdr);
155 #if defined(CONFIG_FIT)
156 case IMAGE_FORMAT_FIT:
157 fit_unsupported ("bootm");
161 puts ("ERROR: unknown image format type!\n");
165 image_start = (ulong)os_hdr;
167 type_name = image_get_type_name (type);
170 * We have reached the point of no return: we are going to
171 * overwrite all exception vector code, so we cannot easily
172 * recover from any failures any more...
174 iflag = disable_interrupts();
176 #ifdef CONFIG_AMIGAONEG3SE
178 * We've possible left the caches enabled during
179 * bios emulation, so turn them off again
182 invalidate_l1_instruction_cache();
189 if (load_start == (ulong)os_hdr) {
190 printf (" XIP %s ... ", type_name);
192 printf (" Loading %s ... ", type_name);
194 memmove_wd ((void *)load_start,
195 (void *)os_data, os_len, CHUNKSZ);
197 load_end = load_start + os_len;
202 printf (" Uncompressing %s ... ", type_name);
203 if (gunzip ((void *)load_start, unc_len,
204 (uchar *)os_data, &os_len) != 0) {
205 puts ("GUNZIP ERROR - must RESET board to recover\n");
206 show_boot_progress (-6);
207 do_reset (cmdtp, flag, argc, argv);
210 load_end = load_start + os_len;
214 printf (" Uncompressing %s ... ", type_name);
216 * If we've got less than 4 MB of malloc() space,
217 * use slower decompression algorithm which requires
218 * at most 2300 KB of memory.
220 int i = BZ2_bzBuffToBuffDecompress ((char*)load_start,
221 &unc_len, (char *)os_data, os_len,
222 CFG_MALLOC_LEN < (4096 * 1024), 0);
224 printf ("BUNZIP2 ERROR %d - must RESET board to recover\n", i);
225 show_boot_progress (-6);
226 do_reset (cmdtp, flag, argc, argv);
229 load_end = load_start + unc_len;
231 #endif /* CONFIG_BZIP2 */
235 printf ("Unimplemented compression type %d\n", comp);
236 show_boot_progress (-7);
240 debug (" kernel loaded at 0x%08lx, end = 0x%08lx\n", load_start, load_end);
241 show_boot_progress (7);
243 if ((load_start < image_end) && (load_end > image_start)) {
244 debug ("image_start = 0x%lX, image_end = 0x%lx\n", image_start, image_end);
245 debug ("load_start = 0x%lx, load_end = 0x%lx\n", load_start, load_end);
247 puts ("ERROR: image overwritten - must RESET the board to recover.\n");
248 do_reset (cmdtp, flag, argc, argv);
251 show_boot_progress (8);
253 lmb_reserve(&lmb, load_start, (load_end - load_start));
256 default: /* handled by (original) Linux case */
258 #ifdef CONFIG_SILENT_CONSOLE
259 fixup_silent_linux();
261 do_bootm_linux (cmdtp, flag, argc, argv, &images);
265 do_bootm_netbsd (cmdtp, flag, argc, argv, &images);
268 #ifdef CONFIG_LYNXKDI
270 do_bootm_lynxkdi (cmdtp, flag, argc, argv, &images);
275 do_bootm_rtems (cmdtp, flag, argc, argv, &images);
278 #if defined(CONFIG_CMD_ELF)
280 do_bootm_vxworks (cmdtp, flag, argc, argv, &images);
284 do_bootm_qnxelf (cmdtp, flag, argc, argv, &images);
290 do_bootm_artos (cmdtp, flag, argc, argv, &images);
295 show_boot_progress (-9);
297 puts ("\n## Control returned to monitor - resetting...\n");
298 do_reset (cmdtp, flag, argc, argv);
304 * get_kernel - find kernel image
305 * @os_data: pointer to a ulong variable, will hold os data start address
306 * @os_len: pointer to a ulong variable, will hold os data length
308 * get_kernel() tries to find a kernel image, verifies its integrity
309 * and locates kernel data.
312 * pointer to image header if valid image was found, plus kernel start
313 * address and length, otherwise NULL
315 static image_header_t *image_get_kernel (ulong img_addr, int verify)
317 image_header_t *hdr = (image_header_t *)img_addr;
319 if (!image_check_magic(hdr)) {
320 puts ("Bad Magic Number\n");
321 show_boot_progress (-1);
324 show_boot_progress (2);
326 if (!image_check_hcrc (hdr)) {
327 puts ("Bad Header Checksum\n");
328 show_boot_progress (-2);
332 show_boot_progress (3);
333 image_print_contents (hdr);
336 puts (" Verifying Checksum ... ");
337 if (!image_check_dcrc (hdr)) {
338 printf ("Bad Data CRC\n");
339 show_boot_progress (-3);
344 show_boot_progress (4);
346 if (!image_check_target_arch (hdr)) {
347 printf ("Unsupported Architecture 0x%x\n", image_get_arch (hdr));
348 show_boot_progress (-4);
355 * get_kernel - find kernel image
356 * @os_data: pointer to a ulong variable, will hold os data start address
357 * @os_len: pointer to a ulong variable, will hold os data length
359 * get_kernel() tries to find a kernel image, verifies its integrity
360 * and locates kernel data.
363 * pointer to image header if valid image was found, plus kernel start
364 * address and length, otherwise NULL
366 static void *get_kernel (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
367 bootm_headers_t *images, ulong *os_data, ulong *os_len)
371 #if defined(CONFIG_FIT)
373 const char *fit_uname_config = NULL;
374 const char *fit_uname_kernel = NULL;
377 /* find out kernel image address */
379 img_addr = load_addr;
380 debug ("* kernel: default image load address = 0x%08lx\n",
382 #if defined(CONFIG_FIT)
383 } else if (fit_parse_conf (argv[1], load_addr, &img_addr,
384 &fit_uname_config)) {
385 debug ("* kernel: config '%s' from image at 0x%08lx\n",
386 fit_uname_config, img_addr);
387 } else if (fit_parse_subimage (argv[1], load_addr, &img_addr,
388 &fit_uname_kernel)) {
389 debug ("* kernel: subimage '%s' from image at 0x%08lx\n",
390 fit_uname_kernel, img_addr);
393 img_addr = simple_strtoul(argv[1], NULL, 16);
394 debug ("* kernel: cmdline image address = 0x%08lx\n", img_addr);
397 show_boot_progress (1);
398 printf ("## Booting kernel image at %08lx ...\n", img_addr);
400 /* copy from dataflash if needed */
401 img_addr = gen_get_image (img_addr);
403 /* check image type, for FIT images get FIT kernel node */
404 switch (gen_image_get_format ((void *)img_addr)) {
405 case IMAGE_FORMAT_LEGACY:
407 debug ("* kernel: legacy format image\n");
408 hdr = image_get_kernel (img_addr, images->verify);
411 show_boot_progress (5);
413 switch (image_get_type (hdr)) {
415 *os_data = image_get_data (hdr);
416 *os_len = image_get_data_size (hdr);
419 image_multi_getimg (hdr, 0, os_data, os_len);
422 printf ("Wrong Image Type for %s command\n", cmdtp->name);
423 show_boot_progress (-5);
426 images->legacy_hdr_os = hdr;
427 images->legacy_hdr_valid = 1;
430 #if defined(CONFIG_FIT)
431 case IMAGE_FORMAT_FIT:
432 fit_hdr = (void *)img_addr;
433 debug ("* kernel: FIT format image\n");
434 fit_unsupported ("kernel");
438 printf ("Wrong Image Format for %s command\n", cmdtp->name);
442 debug (" kernel data at 0x%08lx, end = 0x%08lx\n",
443 *os_data, *os_data + *os_len);
445 return (void *)img_addr;
449 bootm, CFG_MAXARGS, 1, do_bootm,
450 "bootm - boot application image from memory\n",
451 "[addr [arg ...]]\n - boot application image stored in memory\n"
452 "\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
453 "\t'arg' can be the address of an initrd image\n"
454 #if defined(CONFIG_OF_LIBFDT)
455 "\tWhen booting a Linux kernel which requires a flat device-tree\n"
456 "\ta third argument is required which is the address of the\n"
457 "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
458 "\tuse a '-' for the second argument. If you do not pass a third\n"
459 "\ta bd_info struct will be passed instead\n"
463 /*******************************************************************/
464 /* bootd - boot default image */
465 /*******************************************************************/
466 #if defined(CONFIG_CMD_BOOTD)
467 int do_bootd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
471 #ifndef CFG_HUSH_PARSER
472 if (run_command (getenv ("bootcmd"), flag) < 0)
475 if (parse_string_outer (getenv ("bootcmd"),
476 FLAG_PARSE_SEMICOLON | FLAG_EXIT_FROM_LOOP) != 0)
483 boot, 1, 1, do_bootd,
484 "boot - boot default, i.e., run 'bootcmd'\n",
488 /* keep old command name "bootd" for backward compatibility */
490 bootd, 1, 1, do_bootd,
491 "bootd - boot default, i.e., run 'bootcmd'\n",
498 /*******************************************************************/
499 /* iminfo - print header info for a requested image */
500 /*******************************************************************/
501 #if defined(CONFIG_CMD_IMI)
502 int do_iminfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
509 return image_info (load_addr);
512 for (arg = 1; arg < argc; ++arg) {
513 addr = simple_strtoul (argv[arg], NULL, 16);
514 if (image_info (addr) != 0)
520 static int image_info (ulong addr)
522 void *hdr = (void *)addr;
524 printf ("\n## Checking Image at %08lx ...\n", addr);
526 switch (gen_image_get_format (hdr)) {
527 case IMAGE_FORMAT_LEGACY:
528 puts (" Legacy image found\n");
529 if (!image_check_magic (hdr)) {
530 puts (" Bad Magic Number\n");
534 if (!image_check_hcrc (hdr)) {
535 puts (" Bad Header Checksum\n");
539 image_print_contents (hdr);
541 puts (" Verifying Checksum ... ");
542 if (!image_check_dcrc (hdr)) {
543 puts (" Bad Data CRC\n");
548 #if defined(CONFIG_FIT)
549 case IMAGE_FORMAT_FIT:
550 puts (" FIT image found\n");
551 fit_unsupported ("iminfo");
555 puts ("Unknown image format!\n");
563 iminfo, CFG_MAXARGS, 1, do_iminfo,
564 "iminfo - print header information for application image\n",
566 " - print header information for application image starting at\n"
567 " address 'addr' in memory; this includes verification of the\n"
568 " image contents (magic number, header and payload checksums)\n"
573 /*******************************************************************/
574 /* imls - list all images found in flash */
575 /*******************************************************************/
576 #if defined(CONFIG_CMD_IMLS)
577 int do_imls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
583 for (i = 0, info = &flash_info[0];
584 i < CFG_MAX_FLASH_BANKS; ++i, ++info) {
586 if (info->flash_id == FLASH_UNKNOWN)
588 for (j = 0; j < info->sector_count; ++j) {
590 hdr = (void *)info->start[j];
594 switch (gen_image_get_format (hdr)) {
595 case IMAGE_FORMAT_LEGACY:
596 if (!image_check_magic (hdr))
599 if (!image_check_hcrc (hdr))
602 printf ("Legacy Image at %08lX:\n", (ulong)hdr);
603 image_print_contents (hdr);
605 puts (" Verifying Checksum ... ");
606 if (!image_check_dcrc (hdr)) {
607 puts ("Bad Data CRC\n");
612 #if defined(CONFIG_FIT)
613 case IMAGE_FORMAT_FIT:
614 printf ("FIT Image at %08lX:\n", (ulong)hdr);
615 fit_unsupported ("imls");
632 "imls - list all images found in flash\n",
634 " - Prints information about all images found at sector\n"
635 " boundaries in flash.\n"
639 /*******************************************************************/
640 /* helper routines */
641 /*******************************************************************/
642 #ifdef CONFIG_SILENT_CONSOLE
643 static void fixup_silent_linux ()
645 char buf[256], *start, *end;
646 char *cmdline = getenv ("bootargs");
648 /* Only fix cmdline when requested */
649 if (!(gd->flags & GD_FLG_SILENT))
652 debug ("before silent fix-up: %s\n", cmdline);
654 if ((start = strstr (cmdline, "console=")) != NULL) {
655 end = strchr (start, ' ');
656 strncpy (buf, cmdline, (start - cmdline + 8));
658 strcpy (buf + (start - cmdline + 8), end);
660 buf[start - cmdline + 8] = '\0';
662 strcpy (buf, cmdline);
663 strcat (buf, " console=");
666 strcpy (buf, "console=");
669 setenv ("bootargs", buf);
670 debug ("after silent fix-up: %s\n", buf);
672 #endif /* CONFIG_SILENT_CONSOLE */
675 /*******************************************************************/
676 /* OS booting routines */
677 /*******************************************************************/
679 static void do_bootm_netbsd (cmd_tbl_t *cmdtp, int flag,
680 int argc, char *argv[],
681 bootm_headers_t *images)
683 void (*loader)(bd_t *, image_header_t *, char *, char *);
684 image_header_t *os_hdr, *hdr;
685 ulong kernel_data, kernel_len;
689 #if defined(CONFIG_FIT)
690 if (!images->legacy_hdr_valid) {
691 fit_unsupported_reset ("NetBSD");
692 do_reset (cmdtp, flag, argc, argv);
695 hdr = images->legacy_hdr_os;
698 * Booting a (NetBSD) kernel image
700 * This process is pretty similar to a standalone application:
701 * The (first part of an multi-) image must be a stage-2 loader,
702 * which in turn is responsible for loading & invoking the actual
703 * kernel. The only differences are the parameters being passed:
704 * besides the board info strucure, the loader expects a command
705 * line, the name of the console device, and (optionally) the
706 * address of the original image header.
709 if (image_check_type (hdr, IH_TYPE_MULTI)) {
710 image_multi_getimg (hdr, 1, &kernel_data, &kernel_len);
716 #if defined (CONFIG_8xx_CONS_SMC1)
718 #elif defined (CONFIG_8xx_CONS_SMC2)
720 #elif defined (CONFIG_8xx_CONS_SCC2)
722 #elif defined (CONFIG_8xx_CONS_SCC3)
730 for (i = 2, len = 0; i < argc; i += 1)
731 len += strlen (argv[i]) + 1;
732 cmdline = malloc (len);
734 for (i = 2, len = 0; i < argc; i += 1) {
736 cmdline[len++] = ' ';
737 strcpy (&cmdline[len], argv[i]);
738 len += strlen (argv[i]);
740 } else if ((cmdline = getenv ("bootargs")) == NULL) {
744 loader = (void (*)(bd_t *, image_header_t *, char *, char *))image_get_ep (hdr);
746 printf ("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
749 show_boot_progress (15);
752 * NetBSD Stage-2 Loader Parameters:
753 * r3: ptr to board info data
756 * r6: boot args string
758 (*loader) (gd->bd, os_hdr, consdev, cmdline);
761 #ifdef CONFIG_LYNXKDI
762 static void do_bootm_lynxkdi (cmd_tbl_t *cmdtp, int flag,
763 int argc, char *argv[],
764 bootm_headers_t *images)
766 image_header_t *hdr = images->legacy_hdr_os;
768 #if defined(CONFIG_FIT)
769 if (!images->legacy_hdr_valid) {
770 fit_unsupported_reset ("Lynx");
771 do_reset (cmdtp, flag, argc, argv);
775 lynxkdi_boot ((image_header_t *)hdr);
777 #endif /* CONFIG_LYNXKDI */
779 static void do_bootm_rtems (cmd_tbl_t *cmdtp, int flag,
780 int argc, char *argv[],
781 bootm_headers_t *images)
783 image_header_t *hdr = images->legacy_hdr_os;
784 void (*entry_point)(bd_t *);
786 #if defined(CONFIG_FIT)
787 if (!images->legacy_hdr_valid) {
788 fit_unsupported_reset ("RTEMS");
789 do_reset (cmdtp, flag, argc, argv);
793 entry_point = (void (*)(bd_t *))image_get_ep (hdr);
795 printf ("## Transferring control to RTEMS (at address %08lx) ...\n",
798 show_boot_progress (15);
802 * r3: ptr to board info data
804 (*entry_point)(gd->bd);
807 #if defined(CONFIG_CMD_ELF)
808 static void do_bootm_vxworks (cmd_tbl_t *cmdtp, int flag,
809 int argc, char *argv[],
810 bootm_headers_t *images)
813 image_header_t *hdr = images->legacy_hdr_os;
815 #if defined(CONFIG_FIT)
817 fit_unsupported_reset ("VxWorks");
818 do_reset (cmdtp, flag, argc, argv);
822 sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
823 setenv("loadaddr", str);
824 do_bootvx(cmdtp, 0, 0, NULL);
827 static void do_bootm_qnxelf(cmd_tbl_t *cmdtp, int flag,
828 int argc, char *argv[],
829 bootm_headers_t *images)
833 image_header_t *hdr = images->legacy_hdr_os;
835 #if defined(CONFIG_FIT)
836 if (!images->legacy_hdr_valid) {
837 fit_unsupported_reset ("QNX");
838 do_reset (cmdtp, flag, argc, argv);
842 sprintf(str, "%x", image_get_ep (hdr)); /* write entry-point into string */
843 local_args[0] = argv[0];
844 local_args[1] = str; /* and provide it via the arguments */
845 do_bootelf(cmdtp, 0, 2, local_args);
849 #if defined(CONFIG_ARTOS) && defined(CONFIG_PPC)
850 static void do_bootm_artos (cmd_tbl_t *cmdtp, int flag,
851 int argc, char *argv[],
852 bootm_headers_t *images)
857 int i, j, nxt, len, envno, envsz;
859 void (*entry)(bd_t *bd, char *cmdline, char **fwenv, ulong top);
860 image_header_t *hdr = images->legacy_hdr_os;
862 #if defined(CONFIG_FIT)
863 if (!images->legacy_hdr_valid) {
864 fit_unsupported_reset ("ARTOS");
865 do_reset (cmdtp, flag, argc, argv);
870 * Booting an ARTOS kernel image + application
873 /* this used to be the top of memory, but was wrong... */
875 /* get stack pointer */
876 asm volatile ("mr %0,1" : "=r"(top) );
878 debug ("## Current stack ends at 0x%08lX ", top);
880 top -= 2048; /* just to be sure */
881 if (top > CFG_BOOTMAPSZ)
885 debug ("=> set upper limit to 0x%08lX\n", top);
887 /* first check the artos specific boot args, then the linux args*/
888 if ((s = getenv( "abootargs")) == NULL && (s = getenv ("bootargs")) == NULL)
891 /* get length of cmdline, and place it */
893 top = (top - (len + 1)) & ~0xF;
894 cmdline = (char *)top;
895 debug ("## cmdline at 0x%08lX ", top);
899 top = (top - sizeof (bd_t)) & ~0xF;
900 debug ("## bd at 0x%08lX ", top);
902 memcpy (kbd, gd->bd, sizeof (bd_t));
904 /* first find number of env entries, and their size */
907 for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
908 for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
911 envsz += (nxt - i) + 1; /* plus trailing zero */
913 envno++; /* plus the terminating zero */
914 debug ("## %u envvars total size %u ", envno, envsz);
916 top = (top - sizeof (char **) * envno) & ~0xF;
917 fwenv = (char **)top;
918 debug ("## fwenv at 0x%08lX ", top);
920 top = (top - envsz) & ~0xF;
925 for (i = 0; env_get_char (i) != '\0'; i = nxt + 1) {
926 for (nxt = i; env_get_char (nxt) != '\0'; ++nxt)
929 for (j = i; j < nxt; ++j)
930 *s++ = env_get_char (j);
933 *ss++ = NULL; /* terminate */
935 entry = (void (*)(bd_t *, char *, char **, ulong))image_get_ep (hdr);
936 (*entry) (kbd, cmdline, fwenv, top);