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/*
* This file is part of the coreboot project.
*
* Copyright 2018 MediaTek 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 <bootmode.h>
#include <boot/coreboot_tables.h>
#include <gpio.h>
#include <security/tpm/tis.h>
#include "gpio.h"
void setup_chromeos_gpios(void)
{
gpio_input(GPIO_WP);
gpio_input_pullup(EC_IN_RW);
gpio_input_pullup(EC_IRQ);
gpio_input_pullup(CR50_IRQ);
gpio_output(GPIO_RESET, 0);
}
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{GPIO_WP.id, ACTIVE_LOW,
!get_write_protect_state(), "write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{EC_IN_RW.id, ACTIVE_HIGH, -1, "EC in RW"},
{EC_IRQ.id, ACTIVE_LOW, -1, "EC interrupt"},
{CR50_IRQ.id, ACTIVE_HIGH, -1, "TPM interrupt"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
int get_write_protect_state(void)
{
return !gpio_get(GPIO_WP);
}
int tis_plat_irq_status(void)
{
return gpio_eint_poll(CR50_IRQ);
}
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