78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
/*
|
|
* barebox.c
|
|
*
|
|
* Copyright (c) 2013 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <init.h>
|
|
#include <io.h>
|
|
#include <of.h>
|
|
#include <malloc.h>
|
|
#include <partition.h>
|
|
#include <envfs.h>
|
|
#include <linux/mtd/mtd.h>
|
|
|
|
static int environment_probe(struct device_d *dev)
|
|
{
|
|
char *path;
|
|
int ret;
|
|
|
|
ret = of_find_path(dev->device_node, "device-path", &path, OF_FIND_PATH_FLAGS_BB);
|
|
if (ret)
|
|
return ret;
|
|
|
|
dev_info(dev, "setting default environment path to %s\n", path);
|
|
|
|
default_environment_path_set(path);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct of_device_id environment_dt_ids[] = {
|
|
{
|
|
.compatible = "barebox,environment",
|
|
}, {
|
|
/* sentinel */
|
|
}
|
|
};
|
|
|
|
static struct driver_d environment_driver = {
|
|
.name = "barebox-environment",
|
|
.probe = environment_probe,
|
|
.of_compatible = environment_dt_ids,
|
|
};
|
|
|
|
static int barebox_of_driver_init(void)
|
|
{
|
|
struct device_node *node;
|
|
|
|
node = of_get_root_node();
|
|
if (!node)
|
|
return 0;
|
|
|
|
node = of_find_node_by_path("/chosen");
|
|
if (!node)
|
|
return 0;
|
|
|
|
of_platform_populate(node, of_default_bus_match_table, NULL);
|
|
|
|
platform_driver_register(&environment_driver);
|
|
|
|
return 0;
|
|
}
|
|
late_initcall(barebox_of_driver_init);
|