boardid.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <boardid.h>
#include <console/console.h>
#include <gpio.h>
 
uint32_t board_id(void)
{
        static int id = -1;
 
        if (id < 0) {
                id = gpio_get(GPIO(Q3)) << 0 |
                     gpio_get(GPIO(T1)) << 1 |
                     gpio_get(GPIO(X1)) << 2 |
                     gpio_get(GPIO(X4)) << 3;
                printk(BIOS_SPEW, "Board ID: %#x.\n", id);
        }
 
        return id;
}