1 files changed, 21 insertions, 0 deletions
diff --git a/src/mainboard/amd/birman_plus/chromeos.c b/src/mainboard/amd/birman_plus/chromeos.c
new file mode 100644
index 000000000000..515da94df16c
--- /dev/null
+++ b/src/mainboard/amd/birman_plus/chromeos.c
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <bootmode.h>
+#include <boot/coreboot_tables.h>
+#include <gpio.h>
+#include <types.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+
+void fill_lb_gpios(struct lb_gpios *gpios)
+{
+	struct lb_gpio chromeos_gpios[] = {};
+	lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
+}
+
+int get_write_protect_state(void)
+{
+	/* Birman doesn't have a write protect pin */
+	return 0;
+}
+
+DECLARE_NO_CROS_GPIOS();