src/mainboard/google/peach_pit/chromeos.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <boot/coreboot_tables.h>
   4 #include <bootmode.h>
   5 #include <ec/google/chromeec/ec.h>
   6 #include <ec/google/chromeec/ec_commands.h>
   7 #include <soc/cpu.h>
   8 #include <soc/gpio.h>
   9 #include <types.h>
  10 #include <vendorcode/google/chromeos/chromeos.h>
  11
  12 void fill_lb_gpios(struct lb_gpios *gpios)
  13 {
  14         struct lb_gpio chromeos_gpios[] = {
  15                 /* Lid: active high (LID_GPIO) */
  16                 {EXYNOS5_GPX3, ACTIVE_HIGH, gpio_get_value(GPIO_X34), "lid"},
  17
  18                 /* Power: virtual GPIO active low (POWER_GPIO) */
  19                 {EXYNOS5_GPX1, ACTIVE_LOW, gpio_get_value(GPIO_X12), "power"},
  20         };
  21         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  22 }
  23
  24 int get_recovery_mode_switch(void)
  25 {
  26         uint64_t ec_events;
  27
  28         /* The GPIO is active low. */
  29         if (!gpio_get_value(GPIO_X07)) // RECMODE_GPIO
  30                 return 1;
  31
  32         ec_events = google_chromeec_get_events_b();
  33         return !!(ec_events &
  34                   EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
  35 }
  36
  37 int get_write_protect_state(void)
  38 {
  39         return !gpio_get_value(GPIO_X30);
  40 }
  41
  42 int get_ec_is_trusted(void)
  43 {
  44         /* EC is trusted if not in RW. */
  45         return !gpio_get_value(GPIO_X23);
  46 }