| /* |
| * 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. |
| */ |
| |
| #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; |
| } |
