src/mainboard/google/veyron_mickey/chromeos.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootmode.h>
   4 #include <boot/coreboot_tables.h>
   5 #include <gpio.h>
   6
   7 #include "board.h"
   8
   9 #define GPIO_WP         GPIO(7, A, 6)
  10 #define GPIO_RECOVERY   GPIO(0, B, 1)
  11
  12 void setup_chromeos_gpios(void)
  13 {
  14         gpio_input(GPIO_WP);
  15         gpio_input_pullup(GPIO_RECOVERY);
  16 }
  17
  18 void fill_lb_gpios(struct lb_gpios *gpios)
  19 {
  20         struct lb_gpio chromeos_gpios[] = {
  21                 {GPIO_RECOVERY.raw, ACTIVE_LOW,
  22                         !get_recovery_mode_switch(), "presence"},
  23                 {GPIO_RESET.raw, ACTIVE_HIGH, -1, "reset"},
  24         };
  25         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  26 }
  27
  28 int get_recovery_mode_switch(void)
  29 {
  30         return !gpio_get(GPIO_RECOVERY);
  31 }
  32
  33 int get_write_protect_state(void)
  34 {
  35         return !gpio_get(GPIO_WP);
  36 }
  37
  38 int get_ec_is_trusted(void)
  39 {
  40         /* Do not have a Chrome EC involved in entering recovery mode;
  41            Always return trusted. */
  42         return 1;
  43 }