| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <console/console.h> |
| #include <bootmode.h> |
| #include <boot/coreboot_tables.h> |
| #include <device/pci_ops.h> |
| #include <device/device.h> |
| |
| #include <southbridge/intel/bd82x6x/pch.h> |
| #include <southbridge/intel/common/gpio.h> |
| #include <ec/compal/ene932/ec.h> |
| #include <vendorcode/google/chromeos/chromeos.h> |
| #include "ec.h" |
| |
| void fill_lb_gpios(struct lb_gpios *gpios) |
| { |
| const pci_devfn_t dev = PCI_DEV(0, 0x1f, 0); |
| u16 gen_pmcon_1 = pci_s_read_config32(dev, GEN_PMCON_1); |
| |
| struct lb_gpio chromeos_gpios[] = { |
| /* Lid switch GPIO active high (open). */ |
| {15, ACTIVE_HIGH, get_lid_switch(), "lid"}, |
| |
| /* Power Button */ |
| {101, ACTIVE_LOW, (gen_pmcon_1 >> 9) & 1, "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_lid_switch(void) |
| { |
| return get_gpio(15); |
| } |
| |
| int get_write_protect_state(void) |
| { |
| return !get_gpio(70); |
| } |
| |
| int get_recovery_mode_switch(void) |
| { |
| u8 gpio = !get_gpio(68); |
| /* GPIO68, active low. For Servo support |
| * Treat as active high and let the caller invert if needed. */ |
| printk(BIOS_DEBUG, "REC MODE GPIO 68: %x\n", gpio); |
| |
| return gpio; |
| } |
| |
| static int parrot_ec_running_ro(void) |
| { |
| return !get_gpio(68); |
| } |
| |
| static const struct cros_gpio cros_gpios[] = { |
| CROS_GPIO_REC_AH(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME), |
| CROS_GPIO_WP_AL(70, CROS_GPIO_DEVICE_NAME), |
| }; |
| |
| void mainboard_chromeos_acpi_generate(void) |
| { |
| if (CONFIG(CHROMEOS_NVS) && !parrot_ec_running_ro()) |
| chromeos_set_ecfw_rw(); |
| |
| chromeos_acpi_gpio_generate(cros_gpios, ARRAY_SIZE(cros_gpios)); |
| } |
| |
| int get_ec_is_trusted(void) |
| { |
| /* Do not have a Chrome EC involved in entering recovery mode; |
| Always return trusted. */ |
| return 1; |
| } |