src/mainboard/google/auron/chromeos.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootmode.h>
   4 #include <boot/coreboot_tables.h>
   5 #include <types.h>
   6 #include <vendorcode/google/chromeos/chromeos.h>
   7 #include <soc/chromeos.h>
   8 #include <southbridge/intel/lynxpoint/lp_gpio.h>
   9
  10 #include "onboard.h"
  11
  12 /* EC_IN_RW is GPIO 25 in samus and 14 otherwise */
  13 #if CONFIG(BOARD_GOOGLE_SAMUS)
  14 #define EC_IN_RW_GPIO   25
  15 #else
  16 #define EC_IN_RW_GPIO   14
  17 #endif
  18
  19 void fill_lb_gpios(struct lb_gpios *gpios)
  20 {
  21         struct lb_gpio chromeos_gpios[] = {
  22                 {-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
  23                 {-1, ACTIVE_HIGH, 0, "power"},
  24                 {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
  25         };
  26         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  27 }
  28
  29 int get_write_protect_state(void)
  30 {
  31         return get_gpio(CROS_WP_GPIO);
  32 }
  33
  34 static const struct cros_gpio cros_gpios[] = {
  35         CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
  36         CROS_GPIO_WP_AH(CROS_WP_GPIO, CROS_GPIO_DEVICE_NAME),
  37 };
  38 DECLARE_CROS_GPIOS(cros_gpios);
  39
  40 int get_ec_is_trusted(void)
  41 {
  42         /* EC is trusted if not in RW. */
  43         return !get_gpio(EC_IN_RW_GPIO);
  44 }