/* SPDX-License-Identifier: GPL-2.0-only */ | |
/* This file is part of the coreboot project. */ | |
#include <boardid.h> | |
#include <console/console.h> | |
#include <gpio.h> | |
uint32_t board_id(void) | |
{ | |
static int id = -1; | |
gpio_t gpio[] = {[3] = GPIO(X4), [2] = GPIO(X1), /* X4 is MSB */ | |
[1] = GPIO(T1), [0] = GPIO(Q3),}; /* Q3 is LSB */ | |
if (id < 0) { | |
id = gpio_base3_value(gpio, ARRAY_SIZE(gpio)); | |
printk(BIOS_SPEW, "Board TRISTATE ID: %d.\n", id); | |
} | |
return id; | |
} |