src/mainboard/google/guybrush/chromeos.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include <baseboard/gpio.h>
   4 #include <boardid.h>
   5 #include <bootmode.h>
   6 #include <boot/coreboot_tables.h>
   7 #include <gpio.h>
   8 #include <types.h>
   9 #include <vendorcode/google/chromeos/chromeos.h>
  10
  11 void fill_lb_gpios(struct lb_gpios *gpios)
  12 {
  13         struct lb_gpio chromeos_gpios[] = {
  14                 {GPIO_EC_IN_RW, ACTIVE_HIGH, gpio_get(GPIO_EC_IN_RW), "EC in RW"},
  15         };
  16         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  17 }
  18
  19 static const struct cros_gpio cros_gpios[] = {
  20         CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, GPIO_DEVICE_NAME),
  21         CROS_GPIO_WP_AL(CROS_WP_GPIO, GPIO_DEVICE_NAME),
  22 };
  23 DECLARE_CROS_GPIOS(cros_gpios);
  24
  25 int get_ec_is_trusted(void)
  26 {
  27         /* Board versions 1 & 2 support H1 DB, but the EC_IN_RW signal is not
  28            routed. So emulate EC is trusted. */
  29         if (CONFIG(BOARD_GOOGLE_GUYBRUSH) &&
  30             (board_id() == UNDEFINED_STRAPPING_ID || board_id() < 3))
  31                 return 1;
  32         /* EC is trusted if not in RW. */
  33         return !gpio_get(GPIO_EC_IN_RW);
  34 }