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-rw-r--r--cmd/cmd_ximg.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/cmd/cmd_ximg.c b/cmd/cmd_ximg.c
new file mode 100644
index 00000000000..d033c15b629
--- /dev/null
+++ b/cmd/cmd_ximg.c
@@ -0,0 +1,275 @@
+/*
+ * (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>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+
+/*
+ * Multi Image extract
+ */
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <mapmem.h>
+#include <watchdog.h>
+#if defined(CONFIG_BZIP2)
+#include <bzlib.h>
+#endif
+#include <asm/byteorder.h>
+#include <asm/io.h>
+
+#ifndef CONFIG_SYS_XIMG_LEN
+/* use 8MByte as default max gunzip size */
+#define CONFIG_SYS_XIMG_LEN 0x800000
+#endif
+
+static int
+do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+{
+ ulong addr = load_addr;
+ ulong dest = 0;
+ ulong data, len;
+ int verify;
+ int part = 0;
+#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
+ ulong count;
+ image_header_t *hdr = NULL;
+#endif
+#if defined(CONFIG_FIT)
+ const char *uname = NULL;
+ const void* fit_hdr;
+ int noffset;
+ const void *fit_data;
+ size_t fit_len;
+#endif
+#ifdef CONFIG_GZIP
+ uint unc_len = CONFIG_SYS_XIMG_LEN;
+#endif
+ uint8_t comp;
+
+ verify = getenv_yesno("verify");
+
+ if (argc > 1) {
+ addr = simple_strtoul(argv[1], NULL, 16);
+ }
+ if (argc > 2) {
+ part = simple_strtoul(argv[2], NULL, 16);
+#if defined(CONFIG_FIT)
+ uname = argv[2];
+#endif
+ }
+ if (argc > 3) {
+ dest = simple_strtoul(argv[3], NULL, 16);
+ }
+
+ switch (genimg_get_format((void *)addr)) {
+#if defined(CONFIG_IMAGE_FORMAT_LEGACY)
+ case IMAGE_FORMAT_LEGACY:
+
+ printf("## Copying part %d from legacy image "
+ "at %08lx ...\n", part, addr);
+
+ hdr = (image_header_t *)addr;
+ if (!image_check_magic(hdr)) {
+ printf("Bad Magic Number\n");
+ return 1;
+ }
+
+ if (!image_check_hcrc(hdr)) {
+ printf("Bad Header Checksum\n");
+ return 1;
+ }
+#ifdef DEBUG
+ image_print_contents(hdr);
+#endif
+
+ if (!image_check_type(hdr, IH_TYPE_MULTI) &&
+ !image_check_type(hdr, IH_TYPE_SCRIPT)) {
+ printf("Wrong Image Type for %s command\n",
+ cmdtp->name);
+ return 1;
+ }
+
+ comp = image_get_comp(hdr);
+ if ((comp != IH_COMP_NONE) && (argc < 4)) {
+ printf("Must specify load address for %s command "
+ "with compressed image\n",
+ cmdtp->name);
+ return 1;
+ }
+
+ if (verify) {
+ printf(" Verifying Checksum ... ");
+ if (!image_check_dcrc(hdr)) {
+ printf("Bad Data CRC\n");
+ return 1;
+ }
+ printf("OK\n");
+ }
+
+ count = image_multi_count(hdr);
+ if (part >= count) {
+ printf("Bad Image Part\n");
+ return 1;
+ }
+
+ image_multi_getimg(hdr, part, &data, &len);
+ break;
+#endif
+#if defined(CONFIG_FIT)
+ case IMAGE_FORMAT_FIT:
+ if (uname == NULL) {
+ puts("No FIT subimage unit name\n");
+ return 1;
+ }
+
+ printf("## Copying '%s' subimage from FIT image "
+ "at %08lx ...\n", uname, addr);
+
+ fit_hdr = (const void *)addr;
+ if (!fit_check_format(fit_hdr)) {
+ puts("Bad FIT image format\n");
+ return 1;
+ }
+
+ /* get subimage node offset */
+ noffset = fit_image_get_node(fit_hdr, uname);
+ if (noffset < 0) {
+ printf("Can't find '%s' FIT subimage\n", uname);
+ return 1;
+ }
+
+ if (fit_image_check_comp(fit_hdr, noffset, IH_COMP_NONE)
+ && (argc < 4)) {
+ printf("Must specify load address for %s command "
+ "with compressed image\n",
+ cmdtp->name);
+ return 1;
+ }
+
+ /* verify integrity */
+ if (verify) {
+ if (!fit_image_verify(fit_hdr, noffset)) {
+ puts("Bad Data Hash\n");
+ return 1;
+ }
+ }
+
+ /* get subimage data address and length */
+ if (fit_image_get_data(fit_hdr, noffset,
+ &fit_data, &fit_len)) {
+ puts("Could not find script subimage data\n");
+ return 1;
+ }
+
+ if (fit_image_get_comp(fit_hdr, noffset, &comp)) {
+ puts("Could not find script subimage "
+ "compression type\n");
+ return 1;
+ }
+
+ data = (ulong)fit_data;
+ len = (ulong)fit_len;
+ break;
+#endif
+ default:
+ puts("Invalid image type for imxtract\n");
+ return 1;
+ }
+
+ if (argc > 3) {
+ 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;
+
+ printf(" Loading part %d ... ", part);
+
+ while (l > 0) {
+ tail = (l > CHUNKSZ) ? CHUNKSZ : l;
+ WATCHDOG_RESET();
+ memmove(to, from, tail);
+ to += tail;
+ from += tail;
+ l -= tail;
+ }
+ }
+#else /* !(CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG) */
+ printf(" Loading part %d ... ", part);
+ memmove((char *) dest, (char *)data, len);
+#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
+ break;
+#ifdef CONFIG_GZIP
+ case IH_COMP_GZIP:
+ printf(" Uncompressing part %d ... ", part);
+ if (gunzip((void *) dest, unc_len,
+ (uchar *) data, &len) != 0) {
+ puts("GUNZIP ERROR - image not loaded\n");
+ return 1;
+ }
+ break;
+#endif
+#if defined(CONFIG_BZIP2) && defined(CONFIG_IMAGE_FORMAT_LEGACY)
+ case IH_COMP_BZIP2:
+ {
+ int i;
+
+ printf(" Uncompressing part %d ... ", part);
+ /*
+ * If we've got less than 4 MB of malloc()
+ * space, use slower decompression algorithm
+ * which requires at most 2300 KB of memory.
+ */
+ i = BZ2_bzBuffToBuffDecompress(
+ map_sysmem(ntohl(hdr->ih_load), 0),
+ &unc_len, (char *)data, len,
+ CONFIG_SYS_MALLOC_LEN < (4096 * 1024),
+ 0);
+ if (i != BZ_OK) {
+ printf("BUNZIP2 ERROR %d - "
+ "image not loaded\n", i);
+ return 1;
+ }
+ }
+ break;
+#endif /* CONFIG_BZIP2 */
+ default:
+ printf("Unimplemented compression type %d\n", comp);
+ return 1;
+ }
+ puts("OK\n");
+ }
+
+ flush_cache(dest, len);
+
+ setenv_hex("fileaddr", data);
+ setenv_hex("filesize", len);
+
+ return 0;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char imgextract_help_text[] =
+ "addr part [dest]\n"
+ " - extract <part> from legacy image at <addr> and copy to <dest>"
+#if defined(CONFIG_FIT)
+ "\n"
+ "addr uname [dest]\n"
+ " - extract <uname> subimage from FIT image at <addr> and copy to <dest>"
+#endif
+ "";
+#endif
+
+U_BOOT_CMD(
+ imxtract, 4, 1, do_imgextract,
+ "extract a part of a multi-image", imgextract_help_text
+);
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