1 files changed, 29 insertions, 0 deletions
diff --git a/src/mainboard/google/rex/chromeos.c b/src/mainboard/google/rex/chromeos.c
new file mode 100644
index 0000000000..5c99371eb1
--- /dev/null
+++ b/src/mainboard/google/rex/chromeos.c
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <baseboard/gpio.h>
+#include <bootmode.h>
+#include <boot/coreboot_tables.h>
+#include <gpio.h>
+#include <types.h>
+
+void fill_lb_gpios(struct lb_gpios *gpios)
+{
+	struct lb_gpio chromeos_gpios[] = {
+		{-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
+		{-1, ACTIVE_HIGH, 0, "power"},
+		{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
+		{GPIO_EC_IN_RW, ACTIVE_HIGH, gpio_get(GPIO_EC_IN_RW), "EC in RW"},
+	};
+	lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
+}
+
+int get_write_protect_state(void)
+{
+	return gpio_get(GPIO_PCH_WP);
+}
+
+int get_ec_is_trusted(void)
+{
+	/* EC is trusted if not in RW. */
+	return !gpio_get(GPIO_EC_IN_RW);
+}