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1 /*
2 * (C) Copyright 2014
3 * DENX Software Engineering
4 * Heiko Schocher <hs@denx.de>
5 *
6 * fit_info: print the offset and the len of a property from
7 * node in a fit file.
8 *
9 * Based on:
10 * (C) Copyright 2008 Semihalf
11 *
12 * (C) Copyright 2000-2004
13 * DENX Software Engineering
14 * Wolfgang Denk, wd@denx.de
15 *
16 * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
17 * FIT image specific code abstracted from mkimage.c
18 * some functions added to address abstraction
19 *
20 * All rights reserved.
21 *
22 * SPDX-License-Identifier: GPL-2.0+
23 */
24
25 #include "mkimage.h"
26 #include "fit_common.h"
27 #include <image.h>
28 #include <u-boot/crc.h>
29
30 void usage(char *cmdname)
31 {
32 fprintf(stderr, "Usage: %s -f fit file -n node -p property\n"
33 " -f ==> set fit file which is used'\n"
34 " -n ==> set node name'\n"
35 " -p ==> set property name'\n",
36 cmdname);
37 exit(EXIT_FAILURE);
38 }
39
40 int main(int argc, char **argv)
41 {
42 int ffd = -1;
43 struct stat fsbuf;
44 void *fit_blob;
45 int len;
46 int nodeoffset; /* node offset from libfdt */
47 const void *nodep; /* property node pointer */
48 char *fdtfile = NULL;
49 char *nodename = NULL;
50 char *propertyname = NULL;
51 char cmdname[256];
52 int c;
53
54 strncpy(cmdname, *argv, sizeof(cmdname) - 1);
55 cmdname[sizeof(cmdname) - 1] = '\0';
56 while ((c = getopt(argc, argv, "f:n:p:")) != -1)
57 switch (c) {
58 case 'f':
59 fdtfile = optarg;
60 break;
61 case 'n':
62 nodename = optarg;
63 break;
64 case 'p':
65 propertyname = optarg;
66 break;
67 default:
68 usage(cmdname);
69 break;
70 }
71
72 if (!fdtfile) {
73 fprintf(stderr, "%s: Missing fdt file\n", *argv);
74 usage(*argv);
75 }
76 if (!nodename) {
77 fprintf(stderr, "%s: Missing node name\n", *argv);
78 usage(*argv);
79 }
80 if (!propertyname) {
81 fprintf(stderr, "%s: Missing property name\n", *argv);
82 usage(*argv);
83 }
84 ffd = mmap_fdt(cmdname, fdtfile, 0, &fit_blob, &fsbuf, false);
85
86 if (ffd < 0) {
87 printf("Could not open %s\n", fdtfile);
88 exit(EXIT_FAILURE);
89 }
90
91 nodeoffset = fdt_path_offset(fit_blob, nodename);
92 if (nodeoffset < 0) {
93 printf("%s not found.", nodename);
94 exit(EXIT_FAILURE);
95 }
96 nodep = fdt_getprop(fit_blob, nodeoffset, propertyname, &len);
97 if (len == 0) {
98 printf("len == 0 %s\n", propertyname);
99 exit(EXIT_FAILURE);
100 }
101
102 printf("NAME: %s\n", fit_get_name(fit_blob, nodeoffset, NULL));
103 printf("LEN: %d\n", len);
104 printf("OFF: %d\n", (int)(nodep - fit_blob));
105 (void) munmap((void *)fit_blob, fsbuf.st_size);
106
107 close(ffd);
108 exit(EXIT_SUCCESS);
109 }