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authorHeiko Schocher <hs@denx.de>2014-03-03 12:19:29 +0100
committerTom Rini <trini@ti.com>2014-03-21 16:39:37 -0400
commit6bf4ca076f8c7a3c1c5abd1cbb059516f7af15df (patch)
tree44f41ca0a49cc50634747550fd5932aaceadb932 /tools/fit_info.c
parentbf007ebb6f4b01af675782d23bacbddd17e1a627 (diff)
downloadblackbird-obmc-uboot-6bf4ca076f8c7a3c1c5abd1cbb059516f7af15df.tar.gz
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tools, fit: add fit_info host command
add fit_info command to the host tools. This command prints the name, offset and the len from a property from a node in a fit file. This info can be used to extract a properties data with linux tools, for example "dd". Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'tools/fit_info.c')
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1 files changed, 96 insertions, 0 deletions
diff --git a/tools/fit_info.c b/tools/fit_info.c
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+/*
+ * (C) Copyright 2014
+ * DENX Software Engineering
+ * Heiko Schocher <hs@denx.de>
+ *
+ * fit_info: print the offset and the len of a property from
+ * node in a fit file.
+ *
+ * Based on:
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
+ * FIT image specific code abstracted from mkimage.c
+ * some functions added to address abstraction
+ *
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include "mkimage.h"
+#include "fit_common.h"
+#include <image.h>
+#include <u-boot/crc.h>
+
+void usage(char *cmdname)
+{
+ fprintf(stderr, "Usage: %s -f fit file -n node -p property\n"
+ " -f ==> set fit file which is used'\n"
+ " -n ==> set node name'\n"
+ " -p ==> set property name'\n",
+ cmdname);
+ exit(EXIT_FAILURE);
+}
+
+int main(int argc, char **argv)
+{
+ int ffd = -1;
+ struct stat fsbuf;
+ void *fit_blob;
+ int len;
+ int nodeoffset; /* node offset from libfdt */
+ const void *nodep; /* property node pointer */
+ char *fdtfile = NULL;
+ char *nodename = NULL;
+ char *propertyname = NULL;
+ char cmdname[50];
+ int c;
+
+ strcpy(cmdname, *argv);
+ while ((c = getopt(argc, argv, "f:n:p:")) != -1)
+ switch (c) {
+ case 'f':
+ fdtfile = optarg;
+ break;
+ case 'n':
+ nodename = optarg;
+ break;
+ case 'p':
+ propertyname = optarg;
+ break;
+ default:
+ usage(cmdname);
+ break;
+ }
+
+ ffd = mmap_fdt(cmdname, fdtfile, &fit_blob, &fsbuf, 0);
+
+ if (ffd < 0) {
+ printf("Could not open %s\n", fdtfile);
+ exit(EXIT_FAILURE);
+ }
+
+ nodeoffset = fdt_path_offset(fit_blob, nodename);
+ if (nodeoffset < 0) {
+ printf("%s not found.", nodename);
+ exit(EXIT_FAILURE);
+ }
+ nodep = fdt_getprop(fit_blob, nodeoffset, propertyname, &len);
+ if (len == 0) {
+ printf("len == 0 %s\n", propertyname);
+ exit(EXIT_FAILURE);
+ }
+
+ printf("NAME: %s\n", fit_get_name(fit_blob, nodeoffset, NULL));
+ printf("LEN: %d\n", len);
+ printf("OFF: %d\n", (int)(nodep - fit_blob));
+ (void) munmap((void *)fit_blob, fsbuf.st_size);
+
+ close(ffd);
+ exit(EXIT_SUCCESS);
+}
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