| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <bootmode.h> |
| #include <boot/coreboot_tables.h> |
| #include <gpio.h> |
| |
| #include "board.h" |
| |
| #define GPIO_WP GPIO(7, A, 6) |
| #define GPIO_POWER GPIO(0, A, 5) |
| #define GPIO_RECOVERY_SERVO GPIO(0, B, 1) |
| #define GPIO_RECOVERY_PUSHKEY GPIO(7, B, 1) |
| |
| void setup_chromeos_gpios(void) |
| { |
| gpio_input(GPIO_WP); |
| gpio_input(GPIO_POWER); |
| gpio_input_pullup(GPIO_RECOVERY_SERVO); |
| gpio_input_pullup(GPIO_RECOVERY_PUSHKEY); |
| } |
| |
| void fill_lb_gpios(struct lb_gpios *gpios) |
| { |
| struct lb_gpio chromeos_gpios[] = { |
| /* Note for early development, we want to support both servo |
| * and pushkey recovery buttons in firmware boot stages. */ |
| {GPIO_RECOVERY_PUSHKEY.raw, ACTIVE_LOW, |
| !get_recovery_mode_switch(), "presence"}, |
| {GPIO_POWER.raw, ACTIVE_LOW, -1, "power"}, |
| {GPIO_RESET.raw, ACTIVE_HIGH, -1, "reset"}, |
| }; |
| lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios)); |
| } |
| |
| int get_recovery_mode_switch(void) |
| { |
| // Both RECOVERY_SERVO and RECOVERY_PUSHKEY are low active. |
| return !(gpio_get(GPIO_RECOVERY_SERVO) && |
| gpio_get(GPIO_RECOVERY_PUSHKEY)); |
| } |
| |
| int get_write_protect_state(void) |
| { |
| return !gpio_get(GPIO_WP); |
| } |