/* SPDX-License-Identifier: GPL-2.0-only */ /* This file is part of the coreboot project. */ #include <console/console.h> #include <bootmode.h> #include <boot/coreboot_tables.h> #include <device/device.h> #include <southbridge/intel/bd82x6x/pch.h> #include <southbridge/intel/common/gpio.h> #include <ec/quanta/ene_kb3940q/ec.h> #include <vendorcode/google/chromeos/chromeos.h> #include "ec.h" #define WP_GPIO 6 #define DEVMODE_GPIO 54 #define FORCE_RECOVERY_MODE 0 void fill_lb_gpios(struct lb_gpios *gpios) { struct lb_gpio chromeos_gpios[] = { /* lid switch value from EC */ {-1, ACTIVE_HIGH, get_lid_switch(), "lid"}, /* Power Button - Hardcode Low as power button may still be * pressed when read here.*/ {-1, ACTIVE_HIGH, 0, "power"}, /* Was VGA Option ROM loaded? */ /* -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(WP_GPIO); } int get_lid_switch(void) { return (ec_mem_read(EC_HW_GPI_STATUS) >> EC_GPI_LID_STAT_BIT) & 1; } int get_recovery_mode_switch(void) { int ec_rec_mode = 0; if (FORCE_RECOVERY_MODE) { printk(BIOS_DEBUG, "FORCING RECOVERY MODE.\n"); return 1; } if (ENV_RAMSTAGE) { if (ec_mem_read(EC_CODE_STATE) == EC_COS_EC_RO) ec_rec_mode = 1; printk(BIOS_DEBUG, "RECOVERY MODE FROM EC: %x\n", ec_rec_mode); } return ec_rec_mode; } static const struct cros_gpio cros_gpios[] = { CROS_GPIO_REC_AH(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME), CROS_GPIO_WP_AL(WP_GPIO, CROS_GPIO_DEVICE_NAME), }; void mainboard_chromeos_acpi_generate(void) { chromeos_acpi_gpio_generate(cros_gpios, ARRAY_SIZE(cros_gpios)); }