blob: a5ec61fa6434bd90faf720b40bc17014aee14ba2 (
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
|
/*
* This file is part of the coreboot project.
*
* Copyright 2013 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <soc/nvidia/tegra124/gpio.h>
#include <boardid.h>
uint8_t board_id(void)
{
static int id = -1;
if (id < 0) {
id = gpio_get_in_value(GPIO(Q3)) << 0 |
gpio_get_in_value(GPIO(T1)) << 1 |
gpio_get_in_value(GPIO(X1)) << 2 |
gpio_get_in_value(GPIO(X4)) << 3;
printk(BIOS_SPEW, "Board ID: %#x.\n", id);
}
return id;
}
|
