2 * (C) Copyright 2008 Semihalf
4 * (C) Copyright 2000-2004
5 * DENX Software Engineering
6 * Wolfgang Denk, wd@denx.de
8 * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
9 * FIT image specific code abstracted from mkimage.c
10 * some functions added to address abstraction
12 * All rights reserved.
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 #include <u-boot/crc.h>
34 static image_header_t header;
36 static int fit_verify_header (unsigned char *ptr, int image_size,
37 struct mkimage_params *params)
39 return fdt_check_header ((void *)ptr);
42 static int fit_check_image_types (uint8_t type)
44 if (type == IH_TYPE_FLATDT)
50 int mmap_fdt(struct mkimage_params *params, const char *fname, void **blobp,
56 /* Load FIT blob into memory (we need to write hashes/signatures) */
57 fd = open(fname, O_RDWR | O_BINARY);
60 fprintf(stderr, "%s: Can't open %s: %s\n",
61 params->cmdname, fname, strerror(errno));
66 if (fstat(fd, sbuf) < 0) {
67 fprintf(stderr, "%s: Can't stat %s: %s\n",
68 params->cmdname, fname, strerror(errno));
73 ptr = mmap(0, sbuf->st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
74 if (ptr == MAP_FAILED) {
75 fprintf(stderr, "%s: Can't read %s: %s\n",
76 params->cmdname, fname, strerror(errno));
81 /* check if ptr has a valid blob */
82 if (fdt_check_header(ptr)) {
83 fprintf(stderr, "%s: Invalid FIT blob\n", params->cmdname);
93 * fit_handle_file - main FIT file processing function
95 * fit_handle_file() runs dtc to convert .its to .itb, includes
96 * binary data, updates timestamp property and calculates hashes.
98 * datafile - .its file
99 * imagefile - .itb file
102 * only on success, otherwise calls exit (EXIT_FAILURE);
104 static int fit_handle_file (struct mkimage_params *params)
106 char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
107 char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
112 /* Flattened Image Tree (FIT) format handling */
113 debug ("FIT format handling\n");
115 /* call dtc to include binary properties into the tmp file */
116 if (strlen (params->imagefile) +
117 strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
118 fprintf (stderr, "%s: Image file name (%s) too long, "
119 "can't create tmpfile",
120 params->imagefile, params->cmdname);
121 return (EXIT_FAILURE);
123 sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
125 /* dtc -I dts -O dtb -p 500 datafile > tmpfile */
126 sprintf (cmd, "%s %s %s > %s",
127 MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
128 debug ("Trying to execute \"%s\"\n", cmd);
129 if (system (cmd) == -1) {
130 fprintf (stderr, "%s: system(%s) failed: %s\n",
131 params->cmdname, cmd, strerror(errno));
135 tfd = mmap_fdt(params, tmpfile, &ptr, &sbuf);
139 /* set hashes for images in the blob */
140 if (fit_add_verification_data(ptr)) {
141 fprintf (stderr, "%s Can't add hashes to FIT blob",
146 /* add a timestamp at offset 0 i.e., root */
147 if (fit_set_timestamp (ptr, 0, sbuf.st_mtime)) {
148 fprintf (stderr, "%s: Can't add image timestamp\n",
150 goto err_add_timestamp;
152 debug ("Added timestamp successfully\n");
154 munmap ((void *)ptr, sbuf.st_size);
157 if (rename (tmpfile, params->imagefile) == -1) {
158 fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
159 params->cmdname, tmpfile, params->imagefile,
162 unlink (params->imagefile);
163 return (EXIT_FAILURE);
165 return (EXIT_SUCCESS);
169 munmap(ptr, sbuf.st_size);
176 static int fit_check_params (struct mkimage_params *params)
178 return ((params->dflag && (params->fflag || params->lflag)) ||
179 (params->fflag && (params->dflag || params->lflag)) ||
180 (params->lflag && (params->dflag || params->fflag)));
183 static struct image_type_params fitimage_params = {
184 .name = "FIT Image support",
185 .header_size = sizeof(image_header_t),
186 .hdr = (void*)&header,
187 .verify_header = fit_verify_header,
188 .print_header = fit_print_contents,
189 .check_image_type = fit_check_image_types,
190 .fflag_handle = fit_handle_file,
191 .set_header = NULL, /* FIT images use DTB header */
192 .check_params = fit_check_params,
195 void init_fit_image_type (void)
197 mkimage_register (&fitimage_params);