src/mainboard/google/oak/chromeos.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <boardid.h>
   4 #include <bootmode.h>
   5 #include <boot/coreboot_tables.h>
   6 #include <gpio.h>
   7
   8 #include "gpio.h"
   9
  10 void setup_chromeos_gpios(void)
  11 {
  12         gpio_input(WRITE_PROTECT);
  13         gpio_input_pullup(EC_IN_RW);
  14         gpio_input_pullup(EC_IRQ);
  15         gpio_input(LID);
  16         gpio_input_pullup(POWER_BUTTON);
  17         if (board_id() + CONFIG_BOARD_ID_ADJUSTMENT < 5)
  18                 gpio_output(EC_SUSPEND_L, 1);
  19 }
  20
  21 void fill_lb_gpios(struct lb_gpios *gpios)
  22 {
  23         struct lb_gpio chromeos_gpios[] = {
  24                 {LID.id, ACTIVE_HIGH, -1, "lid"},
  25                 {POWER_BUTTON.id, ACTIVE_HIGH, -1, "power"},
  26                 {EC_IN_RW.id, ACTIVE_HIGH, -1, "EC in RW"},
  27                 {EC_IRQ.id, ACTIVE_LOW, -1, "EC interrupt"},
  28                 {CR50_IRQ.id, ACTIVE_HIGH, -1, "TPM interrupt"},
  29         };
  30         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  31 }
  32
  33 int get_write_protect_state(void)
  34 {
  35         return !gpio_get(WRITE_PROTECT);
  36 }
  37
  38 int get_ec_is_trusted(void)
  39 {
  40         /* EC is trusted if not in RW. */
  41         return !gpio_get(EC_IN_RW);
  42 }