blob: e7968f4fa9ad8d8e924420402527e39deb343cad (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/*
* 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. */
}
static int boot_device_subregion(const struct region *sub,
struct region_device *subrd,
const struct region_device *parent)
{
if (parent == NULL)
return -1;
return rdev_chain(subrd, parent, region_offset(sub), region_sz(sub));
}
int boot_device_ro_subregion(const struct region *sub,
struct region_device *subrd)
{
/* Ensure boot device has been initialized at least once. */
boot_device_init();
return boot_device_subregion(sub, subrd, boot_device_ro());
}
int boot_device_rw_subregion(const struct region *sub,
struct region_device *subrd)
{
/* Ensure boot device has been initialized at least once. */
boot_device_init();
return boot_device_subregion(sub, subrd, boot_device_rw());
}
|
