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// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: © 2019 Michael Tretter <m.tretter@pengutronix.de>, Pengutronix
#include <command.h>
#include <common.h>
#include <environment.h>
#include <fdt.h>
#include <firmware.h>
#include <fs.h>
#include <getopt.h>
#include <libfile.h>
#include <of.h>
static int do_of_overlay(int argc, char *argv[])
{
int opt, ret;
struct fdt_header *fdt;
struct device_node *overlay;
const char *search_path = NULL;
while ((opt = getopt(argc, argv, "S:")) > 0) {
switch (opt) {
case 'S':
search_path = optarg;
break;
default:
return COMMAND_ERROR_USAGE;
}
}
if (argc != optind + 1)
return COMMAND_ERROR_USAGE;
fdt = read_file(argv[optind], NULL);
if (!fdt) {
printf("cannot read %s\n", argv[optind]);
return 1;
}
overlay = of_unflatten_dtb(fdt);
free(fdt);
if (IS_ERR(overlay))
return PTR_ERR(overlay);
if (search_path) {
ret = of_firmware_load_overlay(overlay, search_path);
if (ret)
goto err;
}
ret = of_register_overlay(overlay);
if (ret) {
printf("cannot apply oftree overlay: %s\n", strerror(-ret));
goto err;
}
return 0;
err:
of_delete_node(overlay);
return ret;
}
BAREBOX_CMD_HELP_START(of_overlay)
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT("-S path", "load firmware using this search path")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(of_overlay)
.cmd = do_of_overlay,
BAREBOX_CMD_DESC("register device tree overlay as fixup")
BAREBOX_CMD_OPTS("[-S path] FILE")
BAREBOX_CMD_GROUP(CMD_GRP_MISC)
BAREBOX_CMD_HELP(cmd_of_overlay_help)
BAREBOX_CMD_END
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