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/* 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;
}
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