| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <bootmode.h> |
| #include <boot/coreboot_tables.h> |
| #include <southbridge/intel/bd82x6x/pch.h> |
| #include <southbridge/intel/common/gpio.h> |
| #include <vendorcode/google/chromeos/chromeos.h> |
| |
| #define GPIO_EC_IN_RW 21 |
| |
| void fill_lb_gpios(struct lb_gpios *gpios) |
| { |
| struct lb_gpio chromeos_gpios[] = { |
| /* Lid: the "switch" comes from the EC */ |
| {-1, ACTIVE_HIGH, get_lid_switch(), "lid"}, |
| |
| /* Power Button: hard-coded as not pressed; we'll detect later |
| * presses via SMI. */ |
| {-1, ACTIVE_HIGH, 0, "power"}, |
| |
| /* Did we load the VGA Option ROM? */ |
| /* -1 indicates that this is a pseudo GPIO */ |
| {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"}, |
| }; |
| lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios)); |
| } |
| |
| int get_write_protect_state(void) |
| { |
| return get_gpio(57); |
| } |
| |
| static const struct cros_gpio cros_gpios[] = { |
| CROS_GPIO_REC_AL(9, CROS_GPIO_DEVICE_NAME), |
| CROS_GPIO_WP_AH(57, CROS_GPIO_DEVICE_NAME), |
| }; |
| |
| void mainboard_chromeos_acpi_generate(void) |
| { |
| chromeos_acpi_gpio_generate(cros_gpios, ARRAY_SIZE(cros_gpios)); |
| } |
| |
| int get_ec_is_trusted(void) |
| { |
| /* EC is trusted if not in RW. */ |
| return !get_gpio(GPIO_EC_IN_RW); |
| } |