diff options
Diffstat (limited to 'src/mainboard/google/veyron_pinky/boardid.c')
| -rw-r--r-- | src/mainboard/google/veyron_pinky/boardid.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/mainboard/google/veyron_pinky/boardid.c b/src/mainboard/google/veyron_pinky/boardid.c new file mode 100644 index 0000000000..ca446a18ae --- /dev/null +++ b/src/mainboard/google/veyron_pinky/boardid.c @@ -0,0 +1,48 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 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 <stdlib.h> +#include <console/console.h> +#include <soc/rockchip/rk3288/gpio.h> + +#include <boardid.h> + +uint8_t board_id(void) +{ + static int id = -1; + static const gpio_t pins[] = { + { .port = 2, .bank = GPIO_A, .idx = 0 }, + { .port = 2, .bank = GPIO_A, .idx = 1 }, + { .port = 2, .bank = GPIO_A, .idx = 2 }, + { .port = 2, .bank = GPIO_A, .idx = 7 }, + }; + + if (id < 0) { + int i; + + id = 0; + for (i = 0; i < ARRAY_SIZE(pins); i++) { + gpio_input(pins[i]); + id |= gpio_get_in_value(pins[i]) << i; + } + printk(BIOS_SPEW, "Board ID: %#x.\n", id); + } + + return id; +} |