3fc6368e1c
This patch makes a few cosmetic changes: - Rename tristate_gpios.c to gpio.c since it will soon be used for binary GPIOs as well. - Rename gpio_get_tristates() to gpio_base3_value() - The binary version will be called gpio_base2_value(). - Updates call sites. - Change the variable name "id" to something more generic. BUG=none BRANCH=none TEST=compiled for veyron_pinky and storm Change-Id: Iab7e32f4e9d70853f782695cfe6842accff1df64 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: c47d0f33ea1a6e9515211b834009cf47a171953f Original-Change-Id: I36d88c67cb118efd1730278691dc3e4ecb6055ee Original-Signed-off-by: David Hendricks <dhendrix@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/228324 Reviewed-on: http://review.coreboot.org/9411 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/*
|
|
* 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 <boardid.h>
|
|
#include <console/console.h>
|
|
#include <gpio.h>
|
|
#include <stdlib.h>
|
|
|
|
uint8_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;
|
|
}
|