This image header is used for booting from SPI using the TI User Boot Loader (UBL). Signed-off-by: Jan Luebbe <jlu@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/*
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* mkublheader.c - produce the header needed to load barebox on OMAP-L138
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*
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* Copyright (C) 2012 Jan Luebbe <j.luebbe@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#define _BSD_SOURCE
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#include <stdio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <limits.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <getopt.h>
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#include <endian.h>
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#define MAGICNUM 0xa1aced00
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struct ubl_header
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{
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uint32_t magicNum; /* Expected magic number */
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uint32_t epAddr; /* Entry point of the user application */
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uint32_t imgSize; /* Number of bytes of the application image */
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uint32_t imgAddr; /* SPI memory offset where application image is located */
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uint32_t ldAddr; /* Address where image is copied to */
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};
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void usage(char *prgname)
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{
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printf( "Usage : %s [OPTION] FILE > HEADER\n"
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"\n"
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"options:\n"
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" -a <address> image flash address\n"
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" -e <address> entry point memory address\n"
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" -l <address> load memory address\n",
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prgname);
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}
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int main(int argc, char *argv[])
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{
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struct stat sb;
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struct ubl_header uh;
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int opt;
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uint32_t imgAddr = 0x00040000 + sizeof(uh);
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uint32_t epAddr = 0xc1080000, ldAddr = 0xc1080000;
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while((opt = getopt(argc, argv, "ael:")) != -1) {
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switch (opt) {
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case 'a':
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imgAddr = strtoul(optarg, NULL, 0);
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break;
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case 'e':
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epAddr = strtoul(optarg, NULL, 0);
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break;
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case 'l':
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ldAddr = strtoul(optarg, NULL, 0);
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break;
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}
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}
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if (optind >= argc) {
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usage(argv[0]);
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exit(1);
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}
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if (stat(argv[optind], &sb) == -1) {
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perror("stat");
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exit(EXIT_FAILURE);
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}
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uh.magicNum = htole32(MAGICNUM);
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uh.epAddr = htole32(epAddr);
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uh.imgSize = htole32((uint32_t)sb.st_size);
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uh.imgAddr = htole32(imgAddr);
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uh.ldAddr = htole32(ldAddr);
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fwrite(&uh, sizeof(uh), 1, stdout);
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exit(EXIT_SUCCESS);
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}
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