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cmd/ximg.c
5.82 KB
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/* * (C) Copyright 2000-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * (C) Copyright 2003 * Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de> * |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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/* * Multi Image extract */ #include <common.h> #include <command.h> #include <image.h> |
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#include <mapmem.h> |
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#include <watchdog.h> #if defined(CONFIG_BZIP2) #include <bzlib.h> #endif |
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#include <asm/byteorder.h> |
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#include <asm/io.h> |
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|
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#ifndef CONFIG_SYS_XIMG_LEN /* use 8MByte as default max gunzip size */ #define CONFIG_SYS_XIMG_LEN 0x800000 #endif |
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static int |
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do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) |
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{ |
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ulong addr = load_addr; ulong dest = 0; |
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ulong data, len; |
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int verify; |
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int part = 0; |
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY) ulong count; |
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image_header_t *hdr = NULL; |
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#endif |
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#if defined(CONFIG_FIT) |
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const char *uname = NULL; |
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const void* fit_hdr; int noffset; const void *fit_data; size_t fit_len; #endif |
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#ifdef CONFIG_GZIP |
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uint unc_len = CONFIG_SYS_XIMG_LEN; |
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#endif |
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uint8_t comp; |
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|
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verify = env_get_yesno("verify"); |
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if (argc > 1) { addr = simple_strtoul(argv[1], NULL, 16); } if (argc > 2) { part = simple_strtoul(argv[2], NULL, 16); |
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#if defined(CONFIG_FIT) uname = argv[2]; #endif |
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} if (argc > 3) { dest = simple_strtoul(argv[3], NULL, 16); } |
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switch (genimg_get_format((void *)addr)) { |
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#if defined(CONFIG_IMAGE_FORMAT_LEGACY) |
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case IMAGE_FORMAT_LEGACY: |
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|
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printf("## Copying part %d from legacy image " "at %08lx ... ", part, addr); |
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hdr = (image_header_t *)addr; |
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if (!image_check_magic(hdr)) { |
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printf("Bad Magic Number "); return 1; } |
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|
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if (!image_check_hcrc(hdr)) { |
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printf("Bad Header Checksum "); return 1; } |
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#ifdef DEBUG |
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image_print_contents(hdr); |
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#endif |
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|
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if (!image_check_type(hdr, IH_TYPE_MULTI) && !image_check_type(hdr, IH_TYPE_SCRIPT)) { |
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printf("Wrong Image Type for %s command ", cmdtp->name); return 1; } |
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|
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comp = image_get_comp(hdr); |
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if ((comp != IH_COMP_NONE) && (argc < 4)) { printf("Must specify load address for %s command " "with compressed image ", |
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cmdtp->name); |
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return 1; } |
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|
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if (verify) { printf(" Verifying Checksum ... "); |
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if (!image_check_dcrc(hdr)) { |
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printf("Bad Data CRC "); return 1; |
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} |
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printf("OK "); |
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} |
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|
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count = image_multi_count(hdr); |
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if (part >= count) { |
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printf("Bad Image Part "); return 1; } |
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|
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image_multi_getimg(hdr, part, &data, &len); |
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break; |
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#endif |
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#if defined(CONFIG_FIT) case IMAGE_FORMAT_FIT: |
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if (uname == NULL) { |
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puts("No FIT subimage unit name "); |
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return 1; } printf("## Copying '%s' subimage from FIT image " "at %08lx ... ", uname, addr); fit_hdr = (const void *)addr; |
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if (!fit_check_format(fit_hdr)) { puts("Bad FIT image format "); |
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return 1; } /* get subimage node offset */ |
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noffset = fit_image_get_node(fit_hdr, uname); |
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if (noffset < 0) { |
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printf("Can't find '%s' FIT subimage ", uname); |
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return 1; } |
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if (fit_image_check_comp(fit_hdr, noffset, IH_COMP_NONE) |
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&& (argc < 4)) { printf("Must specify load address for %s command " "with compressed image ", cmdtp->name); |
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return 1; } /* verify integrity */ if (verify) { |
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if (!fit_image_verify(fit_hdr, noffset)) { |
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puts("Bad Data Hash "); |
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return 1; } } /* get subimage data address and length */ |
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if (fit_image_get_data(fit_hdr, noffset, |
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&fit_data, &fit_len)) { |
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puts("Could not find script subimage data "); |
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return 1; } |
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if (fit_image_get_comp(fit_hdr, noffset, &comp)) { puts("Could not find script subimage " |
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"compression type "); return 1; } |
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data = (ulong)fit_data; |
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len = (ulong)fit_len; break; |
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#endif default: |
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puts("Invalid image type for imxtract "); |
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return 1; } |
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if (argc > 3) { |
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switch (comp) { case IH_COMP_NONE: #if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) { size_t l = len; size_t tail; void *to = (void *) dest; void *from = (void *)data; |
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printf(" Loading part %d ... ", part); |
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while (l > 0) { tail = (l > CHUNKSZ) ? CHUNKSZ : l; WATCHDOG_RESET(); |
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memmove(to, from, tail); |
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to += tail; from += tail; l -= tail; } } #else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */ |
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printf(" Loading part %d ... ", part); memmove((char *) dest, (char *)data, len); |
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#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */ break; |
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#ifdef CONFIG_GZIP |
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case IH_COMP_GZIP: |
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printf(" Uncompressing part %d ... ", part); if (gunzip((void *) dest, unc_len, (uchar *) data, &len) != 0) { puts("GUNZIP ERROR - image not loaded "); |
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return 1; } break; |
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#endif |
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#if defined(CONFIG_BZIP2) && defined(CONFIG_IMAGE_FORMAT_LEGACY) |
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case IH_COMP_BZIP2: |
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{ int i; |
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printf(" Uncompressing part %d ... ", part); |
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/* |
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* If we've got less than 4 MB of malloc() |
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* space, use slower decompression algorithm * which requires at most 2300 KB of memory. */ i = BZ2_bzBuffToBuffDecompress( |
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map_sysmem(ntohl(hdr->ih_load), 0), |
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&unc_len, (char *)data, len, CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0); if (i != BZ_OK) { |
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printf("BUNZIP2 ERROR %d - " |
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"image not loaded ", i); return 1; } |
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} break; #endif /* CONFIG_BZIP2 */ default: |
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printf("Unimplemented compression type %d ", comp); |
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return 1; } |
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puts("OK "); |
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} |
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flush_cache(dest, len); |
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env_set_hex("fileaddr", data); env_set_hex("filesize", len); |
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return 0; } |
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#ifdef CONFIG_SYS_LONGHELP static char imgextract_help_text[] = |
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"addr part [dest] " " - extract <part> from legacy image at <addr> and copy to <dest>" |
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#if defined(CONFIG_FIT) |
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" " "addr uname [dest] " " - extract <uname> subimage from FIT image at <addr> and copy to <dest>" |
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#endif |
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""; #endif U_BOOT_CMD( imxtract, 4, 1, do_imgextract, "extract a part of a multi-image", imgextract_help_text |
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); |