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/*
* This file is part of the coreboot project.
*
* Copyright 2015 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* 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 <boot_device.h>
void __attribute__((weak)) boot_device_init(void)
{
/* Provide weak do-nothing init. */
}
int boot_device_ro_subregion(const struct region *sub,
struct region_device *subrd)
{
const struct region_device *boot_dev;
/* Ensure boot device has been initialized at least once. */
boot_device_init();
boot_dev = boot_device_ro();
if (boot_dev == NULL)
return -1;
return rdev_chain(subrd, boot_dev, region_offset(sub), region_sz(sub));
}
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