blob: f19b0325263c47060e0ad3e24840ce2003a13e31 (
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
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2017 Advanced Micro Devices, 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 <boardid.h>
#include <console/console.h>
#include <gpio.h>
uint8_t board_id(void)
{
MAYBE_STATIC int id = -1;
gpio_t gpios[] = {
GPIO_135,
GPIO_140,
GPIO_144,
};
if (id < 0) {
id = gpio_base2_value(gpios, ARRAY_SIZE(gpios));
printk(BIOS_SPEW, "Board ID: %#x.\n", id);
}
return id;
}
|
