136 lines
2.9 KiB
C
136 lines
2.9 KiB
C
/*
|
|
* oftree.c - device tree command support
|
|
*
|
|
* Copyright (c) 2011 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
|
|
*
|
|
* based on U-Boot code by:
|
|
*
|
|
* Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
|
|
* Pantelis Antoniou <pantelis.antoniou@gmail.com> and
|
|
* Matthew McClintock <msm@freescale.com>
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <environment.h>
|
|
#include <fdt.h>
|
|
#include <of.h>
|
|
#include <command.h>
|
|
#include <fs.h>
|
|
#include <malloc.h>
|
|
#include <libfdt.h>
|
|
#include <linux/ctype.h>
|
|
#include <asm/byteorder.h>
|
|
#include <errno.h>
|
|
#include <getopt.h>
|
|
#include <init.h>
|
|
|
|
static int do_oftree(int argc, char *argv[])
|
|
{
|
|
struct fdt_header *fdt;
|
|
int size;
|
|
int opt;
|
|
char *file = NULL;
|
|
const char *node = "/";
|
|
int dump = 0;
|
|
int parse = 0;
|
|
|
|
while ((opt = getopt(argc, argv, "dpfn:")) > 0) {
|
|
switch (opt) {
|
|
case 'd':
|
|
dump = 1;
|
|
break;
|
|
case 'p':
|
|
parse = 1;
|
|
break;
|
|
case 'f':
|
|
free(barebox_fdt);
|
|
barebox_fdt = NULL;
|
|
return 0;
|
|
case 'n':
|
|
node = optarg;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (optind < argc)
|
|
file = argv[optind];
|
|
|
|
if (!dump && !parse)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
if (dump) {
|
|
if (file) {
|
|
fdt = read_file(file, &size);
|
|
if (!fdt) {
|
|
printf("unable to read %s\n", file);
|
|
return 1;
|
|
}
|
|
|
|
fdt_print(fdt, node);
|
|
free(fdt);
|
|
} else {
|
|
if (barebox_fdt) {
|
|
fdt_print(barebox_fdt, node);
|
|
return 0;
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (parse) {
|
|
if (!file)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
fdt = read_file(file, &size);
|
|
if (!fdt) {
|
|
perror("open");
|
|
return 1;
|
|
}
|
|
|
|
fdt = xrealloc(fdt, size + 0x8000);
|
|
fdt_open_into(fdt, fdt, size + 0x8000);
|
|
if (!fdt) {
|
|
printf("unable to read %s\n", file);
|
|
return 1;
|
|
}
|
|
|
|
if (barebox_fdt)
|
|
free(barebox_fdt);
|
|
|
|
barebox_fdt = fdt;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
BAREBOX_CMD_HELP_START(oftree)
|
|
BAREBOX_CMD_HELP_USAGE("oftree [OPTIONS]\n")
|
|
BAREBOX_CMD_HELP_OPT ("-p <FILE>", "parse and store oftree from <file>\n")
|
|
BAREBOX_CMD_HELP_OPT ("-d [FILE]", "dump oftree from [FILE] or the parsed tree if no file is given\n")
|
|
BAREBOX_CMD_HELP_OPT ("-f", "free stored oftree\n")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(oftree)
|
|
.cmd = do_oftree,
|
|
.usage = "handle oftrees",
|
|
BAREBOX_CMD_HELP(cmd_oftree_help)
|
|
BAREBOX_CMD_END
|