2 * (C) Copyright 2008 Semihalf
4 * (C) Copyright 2000-2006
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 #ifdef CONFIG_SHOW_BOOT_PROGRESS
33 #include <status_led.h>
36 #ifdef CONFIG_HAS_DATAFLASH
37 #include <dataflash.h>
40 #ifdef CONFIG_LOGBUFFER
44 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
48 #if defined(CONFIG_FIT)
51 #include <fdt_support.h>
55 extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
58 DECLARE_GLOBAL_DATA_PTR;
60 static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
61 int argc, char *argv[],
62 ulong rd_addr, uint8_t arch, int verify);
65 #endif /* USE_HOSTCC*/
69 unsigned long crc32 (unsigned long, const unsigned char *, unsigned int);
71 int image_check_hcrc (image_header_t *hdr)
74 ulong len = image_get_header_size ();
75 image_header_t header;
77 /* Copy header so we can blank CRC field for re-calculation */
78 memmove (&header, (char *)hdr, image_get_header_size ());
79 image_set_hcrc (&header, 0);
81 hcrc = crc32 (0, (unsigned char *)&header, len);
83 return (hcrc == image_get_hcrc (hdr));
86 int image_check_dcrc (image_header_t *hdr)
88 ulong data = image_get_data (hdr);
89 ulong len = image_get_data_size (hdr);
90 ulong dcrc = crc32 (0, (unsigned char *)data, len);
92 return (dcrc == image_get_dcrc (hdr));
96 int image_check_dcrc_wd (image_header_t *hdr, ulong chunksz)
99 ulong len = image_get_data_size (hdr);
100 ulong data = image_get_data (hdr);
102 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
104 ulong edata = cdata + len;
106 while (cdata < edata) {
107 ulong chunk = edata - cdata;
111 dcrc = crc32 (dcrc, (unsigned char *)cdata, chunk);
117 dcrc = crc32 (0, (unsigned char *)data, len);
120 return (dcrc == image_get_dcrc (hdr));
123 int getenv_verify (void)
125 char *s = getenv ("verify");
126 return (s && (*s == 'n')) ? 0 : 1;
129 void memmove_wd (void *to, void *from, size_t len, ulong chunksz)
131 #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG)
133 size_t tail = (len > chunksz) ? chunksz : len;
135 memmove (to, from, tail);
140 #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
141 memmove (to, from, len);
142 #endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
144 #endif /* USE_HOSTCC */
147 * image_multi_count - get component (sub-image) count
148 * @hdr: pointer to the header of the multi component image
150 * image_multi_count() returns number of components in a multi
153 * Note: no checking of the image type is done, caller must pass
154 * a valid multi component image.
157 * number of components
159 ulong image_multi_count (image_header_t *hdr)
164 /* get start of the image payload, which in case of multi
165 * component images that points to a table of component sizes */
166 size = (ulong *)image_get_data (hdr);
168 /* count non empty slots */
169 for (i = 0; size[i]; ++i)
176 * image_multi_getimg - get component data address and size
177 * @hdr: pointer to the header of the multi component image
178 * @idx: index of the requested component
179 * @data: pointer to a ulong variable, will hold component data address
180 * @len: pointer to a ulong variable, will hold component size
182 * image_multi_getimg() returns size and data address for the requested
183 * component in a multi component image.
185 * Note: no checking of the image type is done, caller must pass
186 * a valid multi component image.
189 * data address and size of the component, if idx is valid
190 * 0 in data and len, if idx is out of range
192 void image_multi_getimg (image_header_t *hdr, ulong idx,
193 ulong *data, ulong *len)
197 ulong offset, tail, count, img_data;
199 /* get number of component */
200 count = image_multi_count (hdr);
202 /* get start of the image payload, which in case of multi
203 * component images that points to a table of component sizes */
204 size = (ulong *)image_get_data (hdr);
206 /* get address of the proper component data start, which means
207 * skipping sizes table (add 1 for last, null entry) */
208 img_data = image_get_data (hdr) + (count + 1) * sizeof (ulong);
215 /* go over all indices preceding requested component idx */
216 for (i = 0; i < idx; i++) {
217 /* add up i-th component size */
220 /* add up alignment for i-th component */
221 tail += (4 - size[i] % 4);
224 /* calculate idx-th component data address */
225 *data = img_data + offset + tail;
233 const char* image_get_os_name (uint8_t os)
238 case IH_OS_INVALID: name = "Invalid OS"; break;
239 case IH_OS_NETBSD: name = "NetBSD"; break;
240 case IH_OS_LINUX: name = "Linux"; break;
241 case IH_OS_VXWORKS: name = "VxWorks"; break;
242 case IH_OS_QNX: name = "QNX"; break;
243 case IH_OS_U_BOOT: name = "U-Boot"; break;
244 case IH_OS_RTEMS: name = "RTEMS"; break;
246 case IH_OS_ARTOS: name = "ARTOS"; break;
248 #ifdef CONFIG_LYNXKDI
249 case IH_OS_LYNXOS: name = "LynxOS"; break;
251 default: name = "Unknown OS"; break;
257 const char* image_get_arch_name (uint8_t arch)
262 case IH_ARCH_INVALID: name = "Invalid Architecture"; break;
263 case IH_ARCH_ALPHA: name = "Alpha"; break;
264 case IH_ARCH_ARM: name = "ARM"; break;
265 case IH_ARCH_AVR32: name = "AVR32"; break;
266 case IH_ARCH_BLACKFIN: name = "Blackfin"; break;
267 case IH_ARCH_I386: name = "Intel x86"; break;
268 case IH_ARCH_IA64: name = "IA64"; break;
269 case IH_ARCH_M68K: name = "M68K"; break;
270 case IH_ARCH_MICROBLAZE:name = "Microblaze"; break;
271 case IH_ARCH_MIPS64: name = "MIPS 64 Bit"; break;
272 case IH_ARCH_MIPS: name = "MIPS"; break;
273 case IH_ARCH_NIOS2: name = "Nios-II"; break;
274 case IH_ARCH_NIOS: name = "Nios"; break;
275 case IH_ARCH_PPC: name = "PowerPC"; break;
276 case IH_ARCH_S390: name = "IBM S390"; break;
277 case IH_ARCH_SH: name = "SuperH"; break;
278 case IH_ARCH_SPARC64: name = "SPARC 64 Bit"; break;
279 case IH_ARCH_SPARC: name = "SPARC"; break;
280 default: name = "Unknown Architecture"; break;
286 const char* image_get_type_name (uint8_t type)
291 case IH_TYPE_INVALID: name = "Invalid Image"; break;
292 case IH_TYPE_STANDALONE:name = "Standalone Program"; break;
293 case IH_TYPE_KERNEL: name = "Kernel Image"; break;
294 case IH_TYPE_RAMDISK: name = "RAMDisk Image"; break;
295 case IH_TYPE_MULTI: name = "Multi-File Image"; break;
296 case IH_TYPE_FIRMWARE: name = "Firmware"; break;
297 case IH_TYPE_SCRIPT: name = "Script"; break;
298 case IH_TYPE_FLATDT: name = "Flat Device Tree"; break;
299 default: name = "Unknown Image"; break;
305 const char* image_get_comp_name (uint8_t comp)
310 case IH_COMP_NONE: name = "uncompressed"; break;
311 case IH_COMP_GZIP: name = "gzip compressed"; break;
312 case IH_COMP_BZIP2: name = "bzip2 compressed"; break;
313 default: name = "unknown compression"; break;
319 static void image_print_type (image_header_t *hdr)
321 const char *os, *arch, *type, *comp;
323 os = image_get_os_name (image_get_os (hdr));
324 arch = image_get_arch_name (image_get_arch (hdr));
325 type = image_get_type_name (image_get_type (hdr));
326 comp = image_get_comp_name (image_get_comp (hdr));
328 printf ("%s %s %s (%s)", arch, os, type, comp);
331 void image_print_contents (image_header_t *hdr)
333 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
334 time_t timestamp = (time_t)image_get_time (hdr);
338 printf (" Image Name: %.*s\n", IH_NMLEN, image_get_name (hdr));
340 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE)
341 to_tm (timestamp, &tm);
342 printf (" Created: %4d-%02d-%02d %2d:%02d:%02d UTC\n",
343 tm.tm_year, tm.tm_mon, tm.tm_mday,
344 tm.tm_hour, tm.tm_min, tm.tm_sec);
346 puts (" Image Type: ");
347 image_print_type (hdr);
349 printf ("\n Data Size: %d Bytes = ", image_get_data_size (hdr));
350 print_size (image_get_data_size (hdr), "\n");
351 printf (" Load Address: %08x\n"
352 " Entry Point: %08x\n",
353 image_get_load (hdr), image_get_ep (hdr));
355 if (image_check_type (hdr, IH_TYPE_MULTI)) {
358 ulong count = image_multi_count (hdr);
360 puts (" Contents:\n");
361 for (i = 0; i < count; i++) {
362 image_multi_getimg (hdr, i, &data, &len);
363 printf (" Image %d: %8ld Bytes = ", i, len);
364 print_size (len, "\n");
370 * gen_image_get_format - get image format type
371 * @img_addr: image start address
373 * gen_image_get_format() checks whether provided address points to a valid
374 * legacy or FIT image.
376 * New uImage format and FDT blob are based on a libfdt. FDT blob
377 * may be passed directly or embedded in a FIT image. In both situations
378 * gen_image_get_format() must be able to dectect libfdt header.
381 * image format type or IMAGE_FORMAT_INVALID if no image is present
383 int gen_image_get_format (void *img_addr)
385 ulong format = IMAGE_FORMAT_INVALID;
387 #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
391 hdr = (image_header_t *)img_addr;
392 if (image_check_magic(hdr))
393 format = IMAGE_FORMAT_LEGACY;
394 #if defined(CONFIG_FIT) || defined(CONFIG_OF_LIBFDT)
396 fit_hdr = (char *)img_addr;
397 if (fdt_check_header (fit_hdr) == 0)
398 format = IMAGE_FORMAT_FIT;
406 * gen_get_image - get image from special storage (if necessary)
407 * @img_addr: image start address
409 * gen_get_image() checks if provided image start adddress is located
410 * in a dataflash storage. If so, image is moved to a system RAM memory.
413 * image start address after possible relocation from special storage
415 ulong gen_get_image (ulong img_addr)
417 ulong ram_addr = img_addr;
419 #ifdef CONFIG_HAS_DATAFLASH
420 ulong h_size, d_size;
422 if (addr_dataflash (img_addr)){
423 /* ger RAM address */
424 ram_addr = CFG_LOAD_ADDR;
426 /* get header size */
427 h_size = image_get_header_size ();
428 #if defined(CONFIG_FIT)
429 if (sizeof(struct fdt_header) > h_size)
430 h_size = sizeof(struct fdt_header);
434 debug (" Reading image header from dataflash address "
435 "%08lx to RAM address %08lx\n", img_addr, ram_addr);
437 read_dataflash (img_addr, h_size, (char *)ram_addr);
440 switch (gen_image_get_format ((void *)ram_addr)) {
441 case IMAGE_FORMAT_LEGACY:
442 d_size = image_get_data_size ((image_header_t *)ram_addr);
443 debug (" Legacy format image found at 0x%08lx, size 0x%08lx\n",
446 #if defined(CONFIG_FIT)
447 case IMAGE_FORMAT_FIT:
448 d_size = fdt_totalsize((void *)ram_addr) - h_size;
449 debug (" FIT/FDT format image found at 0x%08lx, size 0x%08lx\n",
454 printf (" No valid image found at 0x%08lx\n", img_addr);
458 /* read in image data */
459 debug (" Reading image remaining data from dataflash address "
460 "%08lx to RAM address %08lx\n", img_addr + h_size,
463 read_dataflash (img_addr + h_size, d_size,
464 (char *)(ram_addr + h_size));
467 #endif /* CONFIG_HAS_DATAFLASH */
473 * image_get_ramdisk - get and verify ramdisk image
474 * @cmdtp: command table pointer
475 * @flag: command flag
476 * @argc: command argument count
477 * @argv: command argument list
478 * @rd_addr: ramdisk image start address
479 * @arch: expected ramdisk architecture
480 * @verify: checksum verification flag
482 * image_get_ramdisk() returns a pointer to the verified ramdisk image
483 * header. Routine receives image start address and expected architecture
484 * flag. Verification done covers data and header integrity and os/type/arch
487 * If dataflash support is enabled routine checks for dataflash addresses
488 * and handles required dataflash reads.
491 * pointer to a ramdisk image header, if image was found and valid
492 * otherwise, return NULL
494 static image_header_t* image_get_ramdisk (cmd_tbl_t *cmdtp, int flag,
495 int argc, char *argv[],
496 ulong rd_addr, uint8_t arch, int verify)
498 image_header_t *rd_hdr;
500 show_boot_progress (9);
501 rd_hdr = (image_header_t *)rd_addr;
503 if (!image_check_magic (rd_hdr)) {
504 puts ("Bad Magic Number\n");
505 show_boot_progress (-10);
509 if (!image_check_hcrc (rd_hdr)) {
510 puts ("Bad Header Checksum\n");
511 show_boot_progress (-11);
515 show_boot_progress (10);
516 image_print_contents (rd_hdr);
519 puts(" Verifying Checksum ... ");
520 if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
521 puts ("Bad Data CRC\n");
522 show_boot_progress (-12);
528 show_boot_progress (11);
530 if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
531 !image_check_arch (rd_hdr, arch) ||
532 !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
533 printf ("No Linux %s Ramdisk Image\n",
534 image_get_arch_name(arch));
535 show_boot_progress (-13);
543 * get_ramdisk - main ramdisk handling routine
544 * @cmdtp: command table pointer
545 * @flag: command flag
546 * @argc: command argument count
547 * @argv: command argument list
548 * @images: pointer to the bootm images structure
549 * @arch: expected ramdisk architecture
550 * @rd_start: pointer to a ulong variable, will hold ramdisk start address
551 * @rd_end: pointer to a ulong variable, will hold ramdisk end
553 * get_ramdisk() is responsible for finding a valid ramdisk image.
554 * Curently supported are the following ramdisk sources:
555 * - multicomponent kernel/ramdisk image,
556 * - commandline provided address of decicated ramdisk image.
559 * rd_start and rd_end are set to ramdisk start/end addresses if
560 * ramdisk image is found and valid
561 * rd_start and rd_end are set to 0 if no ramdisk exists
562 * return 1 if ramdisk image is found but corrupted
564 int get_ramdisk (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
565 bootm_headers_t *images, uint8_t arch,
566 ulong *rd_start, ulong *rd_end)
568 ulong rd_addr, rd_load;
569 ulong rd_data, rd_len;
570 image_header_t *rd_hdr;
571 #if defined(CONFIG_FIT)
573 const char *fit_uname_config = NULL;
574 const char *fit_uname_ramdisk = NULL;
579 * Look for a '-' which indicates to ignore the
582 if ((argc >= 3) && (strcmp(argv[2], "-") == 0)) {
583 debug ("## Skipping init Ramdisk\n");
584 rd_len = rd_data = 0;
585 } else if (argc >= 3) {
586 #if defined(CONFIG_FIT)
588 * If the init ramdisk comes from the FIT image and the FIT image
589 * address is omitted in the command line argument, try to use
590 * os FIT image address or default load address.
592 if (images->fit_uname_os)
593 default_addr = (ulong)images->fit_hdr_os;
595 default_addr = load_addr;
597 if (fit_parse_conf (argv[2], default_addr,
598 &rd_addr, &fit_uname_config)) {
599 debug ("* ramdisk: config '%s' from image at 0x%08lx\n",
600 fit_uname_config, rd_addr);
601 } else if (fit_parse_subimage (argv[2], default_addr,
602 &rd_addr, &fit_uname_ramdisk)) {
603 debug ("* ramdisk: subimage '%s' from image at 0x%08lx\n",
604 fit_uname_ramdisk, rd_addr);
608 rd_addr = simple_strtoul(argv[2], NULL, 16);
609 debug ("* ramdisk: cmdline image address = 0x%08lx\n",
613 /* copy from dataflash if needed */
614 printf ("## Loading init Ramdisk Image at %08lx ...\n",
616 rd_addr = gen_get_image (rd_addr);
619 * Check if there is an initrd image at the
620 * address provided in the second bootm argument
621 * check image type, for FIT images get FIT node.
623 switch (gen_image_get_format ((void *)rd_addr)) {
624 case IMAGE_FORMAT_LEGACY:
626 debug ("* ramdisk: legacy format image\n");
628 rd_hdr = image_get_ramdisk (cmdtp, flag, argc, argv,
629 rd_addr, arch, images->verify);
631 if (rd_hdr == NULL) {
637 rd_data = image_get_data (rd_hdr);
638 rd_len = image_get_data_size (rd_hdr);
639 rd_load = image_get_load (rd_hdr);
641 #if defined(CONFIG_FIT)
642 case IMAGE_FORMAT_FIT:
643 fit_hdr = (void *)rd_addr;
644 debug ("* ramdisk: FIT format image\n");
645 fit_unsupported_reset ("ramdisk");
649 printf ("Wrong Image Format for %s command\n",
651 rd_data = rd_len = 0;
654 #if defined(CONFIG_B2) || defined(CONFIG_EVB4510) || defined(CONFIG_ARMADILLO)
656 * We need to copy the ramdisk to SRAM to let Linux boot
659 memmove ((void *)rd_load, (uchar *)rd_data, rd_len);
662 #endif /* CONFIG_B2 || CONFIG_EVB4510 || CONFIG_ARMADILLO */
664 } else if (images->legacy_hdr_valid &&
665 image_check_type (images->legacy_hdr_os, IH_TYPE_MULTI)) {
667 * Now check if we have a legacy mult-component image,
668 * get second entry data start address and len.
670 show_boot_progress (13);
671 printf ("## Loading init Ramdisk from multi component "
672 "Image at %08lx ...\n",
673 (ulong)images->legacy_hdr_os);
675 image_multi_getimg (images->legacy_hdr_os, 1, &rd_data, &rd_len);
680 show_boot_progress (14);
681 rd_len = rd_data = 0;
685 debug ("## No init Ramdisk\n");
690 *rd_end = rd_data + rd_len;
692 debug (" ramdisk start = 0x%08lx, ramdisk end = 0x%08lx\n",
698 #if defined(CONFIG_PPC) || defined(CONFIG_M68K)
700 * ramdisk_high - relocate init ramdisk
701 * @rd_data: ramdisk data start address
702 * @rd_len: ramdisk data length
703 * @sp_limit: stack pointer limit (including BOOTMAPSZ)
704 * @sp: current stack pointer
705 * @initrd_start: pointer to a ulong variable, will hold final init ramdisk
706 * start address (after possible relocation)
707 * @initrd_end: pointer to a ulong variable, will hold final init ramdisk
708 * end address (after possible relocation)
710 * ramdisk_high() takes a relocation hint from "initrd_high" environement
711 * variable and if requested ramdisk data is moved to a specified location.
714 * - initrd_start and initrd_end are set to final (after relocation) ramdisk
715 * start/end addresses if ramdisk image start and len were provided
716 * otherwise set initrd_start and initrd_end set to zeros
717 * - returns new allc_current, next free address below BOOTMAPSZ
719 ulong ramdisk_high (ulong alloc_current, ulong rd_data, ulong rd_len,
720 ulong sp_limit, ulong sp,
721 ulong *initrd_start, ulong *initrd_end)
725 int initrd_copy_to_ram = 1;
726 ulong new_alloc_current = alloc_current;
728 if ((s = getenv ("initrd_high")) != NULL) {
729 /* a value of "no" or a similar string will act like 0,
730 * turning the "load high" feature off. This is intentional.
732 initrd_high = simple_strtoul (s, NULL, 16);
733 if (initrd_high == ~0)
734 initrd_copy_to_ram = 0;
736 /* not set, no restrictions to load high */
740 #ifdef CONFIG_LOGBUFFER
741 /* Prevent initrd from overwriting logbuffer */
742 if (initrd_high < (gd->bd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD))
743 initrd_high = gd->bd->bi_memsize - LOGBUFF_LEN - LOGBUFF_OVERHEAD;
744 debug ("## Logbuffer at 0x%08lx ", gd->bd->bi_memsize - LOGBUFF_LEN);
746 debug ("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
747 initrd_high, initrd_copy_to_ram);
750 if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
751 debug (" in-place initrd\n");
752 *initrd_start = rd_data;
753 *initrd_end = rd_data + rd_len;
755 new_alloc_current = alloc_current - rd_len;
756 *initrd_start = new_alloc_current;
757 *initrd_start &= ~(4096 - 1); /* align on page */
763 * the inital ramdisk does not need to be within
764 * CFG_BOOTMAPSZ as it is not accessed until after
765 * the mm system is initialised.
767 * do the stack bottom calculation again and see if
768 * the initrd will fit just below the monitor stack
769 * bottom without overwriting the area allocated
770 * for command line args and board info.
773 nsp -= 2048; /* just to be sure */
776 if (nsp > initrd_high) /* limit as specified */
780 nsp &= ~(4096 - 1); /* align on page */
782 if (nsp >= sp_limit) {
784 new_alloc_current = alloc_current;
788 show_boot_progress (12);
790 *initrd_end = *initrd_start + rd_len;
791 printf (" Loading Ramdisk to %08lx, end %08lx ... ",
792 *initrd_start, *initrd_end);
794 memmove_wd((void *)*initrd_start,
795 (void *)rd_data, rd_len, CHUNKSZ);
803 debug (" ramdisk load start = 0x%08lx, ramdisk load end = 0x%08lx\n",
804 *initrd_start, *initrd_end);
806 return new_alloc_current;
810 * get_boot_sp_limit - calculate stack pointer limit
811 * @sp: current stack pointer
813 * get_boot_sp_limit() takes current stack pointer adrress and calculates
814 * stack pointer limit, below which kernel boot data (cmdline, board info,
815 * etc.) will be allocated.
818 * stack pointer limit
820 ulong get_boot_sp_limit(ulong sp)
824 sp_limit -= 2048; /* just to be sure */
826 /* make sure sp_limit is within kernel mapped space */
827 if (sp_limit > CFG_BOOTMAPSZ)
828 sp_limit = CFG_BOOTMAPSZ;
835 * get_boot_cmdline - allocate and initialize kernel cmdline
836 * @alloc_current: current boot allocation address (counting down
838 * @cmd_start: pointer to a ulong variable, will hold cmdline start
839 * @cmd_end: pointer to a ulong variable, will hold cmdline end
841 * get_boot_cmdline() allocates space for kernel command line below
842 * provided alloc_current address. If "bootargs" U-boot environemnt
843 * variable is present its contents is copied to allocated kernel
847 * alloc_current after cmdline allocation
849 ulong get_boot_cmdline (ulong alloc_current, ulong *cmd_start, ulong *cmd_end)
854 cmdline = (char *)((alloc_current - CFG_BARGSIZE) & ~0xF);
856 if ((s = getenv("bootargs")) == NULL)
861 *cmd_start = (ulong) & cmdline[0];
862 *cmd_end = *cmd_start + strlen(cmdline);
864 debug ("## cmdline at 0x%08lx ... 0x%08lx\n", *cmd_start, *cmd_end);
866 return (ulong)cmdline;
870 * get_boot_kbd - allocate and initialize kernel copy of board info
871 * @alloc_current: current boot allocation address (counting down
873 * @kbd: double pointer to board info data
875 * get_boot_kbd() - allocates space for kernel copy of board info data.
876 * Space is allocated below provided alloc_current address and kernel
877 * board info is initialized with the current u-boot board info data.
880 * alloc_current after kbd allocation
882 ulong get_boot_kbd (ulong alloc_current, bd_t **kbd)
884 *kbd = (bd_t *) (((ulong)alloc_current - sizeof(bd_t)) & ~0xF);
887 debug ("## kernel board info at 0x%08lx\n", (ulong)*kbd);
889 #if defined(DEBUG) && defined(CONFIG_CMD_BDI)
890 do_bdinfo(NULL, 0, 0, NULL);
895 #endif /* CONFIG_PPC || CONFIG_M68K */
897 #if defined(CONFIG_FIT)
898 /*****************************************************************************/
899 /* New uImage format routines */
900 /*****************************************************************************/
901 static int fit_parse_spec (const char *spec, char sepc, ulong addr_curr,
902 ulong *addr, const char **name)
909 sep = strchr (spec, sepc);
912 *addr = simple_strtoul (spec, NULL, 16);
922 * fit_parse_conf - parse FIT configuration spec
923 * @spec: input string, containing configuration spec
924 * @add_curr: current image address (to be used as a possible default)
925 * @addr: pointer to a ulong variable, will hold FIT image address of a given
927 * @conf_name double pointer to a char, will hold pointer to a configuration
930 * fit_parse_conf() expects configuration spec in the for of [<addr>]#<conf>,
931 * where <addr> is a FIT image address that contains configuration
932 * with a <conf> unit name.
934 * Address part is optional, and if omitted default add_curr will
938 * 1 if spec is a valid configuration string,
939 * addr and conf_name are set accordingly
942 inline int fit_parse_conf (const char *spec, ulong addr_curr,
943 ulong *addr, const char **conf_name)
945 return fit_parse_spec (spec, '#', addr_curr, addr, conf_name);
949 * fit_parse_subimage - parse FIT subimage spec
950 * @spec: input string, containing subimage spec
951 * @add_curr: current image address (to be used as a possible default)
952 * @addr: pointer to a ulong variable, will hold FIT image address of a given
954 * @image_name: double pointer to a char, will hold pointer to a subimage name
956 * fit_parse_subimage() expects subimage spec in the for of
957 * [<addr>]:<subimage>, where <addr> is a FIT image address that contains
958 * subimage with a <subimg> unit name.
960 * Address part is optional, and if omitted default add_curr will
964 * 1 if spec is a valid subimage string,
965 * addr and image_name are set accordingly
968 inline int fit_parse_subimage (const char *spec, ulong addr_curr,
969 ulong *addr, const char **image_name)
971 return fit_parse_spec (spec, ':', addr_curr, addr, image_name);
974 #endif /* CONFIG_FIT */
976 #endif /* USE_HOSTCC */