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[50]; 52 int c; 53 54 strcpy(cmdname, *argv); 55 while ((c = getopt(argc, argv, "f:n:p:")) != -1) 56 switch (c) { 57 case 'f': 58 fdtfile = optarg; 59 break; 60 case 'n': 61 nodename = optarg; 62 break; 63 case 'p': 64 propertyname = optarg; 65 break; 66 default: 67 usage(cmdname); 68 break; 69 } 70 71 ffd = mmap_fdt(cmdname, fdtfile, &fit_blob, &fsbuf, 0); 72 73 if (ffd < 0) { 74 printf("Could not open %s\n", fdtfile); 75 exit(EXIT_FAILURE); 76 } 77 78 nodeoffset = fdt_path_offset(fit_blob, nodename); 79 if (nodeoffset < 0) { 80 printf("%s not found.", nodename); 81 exit(EXIT_FAILURE); 82 } 83 nodep = fdt_getprop(fit_blob, nodeoffset, propertyname, &len); 84 if (len == 0) { 85 printf("len == 0 %s\n", propertyname); 86 exit(EXIT_FAILURE); 87 } 88 89 printf("NAME: %s\n", fit_get_name(fit_blob, nodeoffset, NULL)); 90 printf("LEN: %d\n", len); 91 printf("OFF: %d\n", (int)(nodep - fit_blob)); 92 (void) munmap((void *)fit_blob, fsbuf.st_size); 93 94 close(ffd); 95 exit(EXIT_SUCCESS); 96 } 97