1 files changed, 13 insertions, 0 deletions
diff --git a/src/mainboard/asus/p2b/bootblock.c b/src/mainboard/asus/p2b/bootblock.c
new file mode 100644
index 0000000000..18eff07355
--- /dev/null
+++ b/src/mainboard/asus/p2b/bootblock.c
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* This file is part of the coreboot project. */
+
+#include <bootblock_common.h>
+#include <superio/winbond/common/winbond.h>
+#include <superio/winbond/w83977tf/w83977tf.h>
+
+#define SERIAL_DEV PNP_DEV(0x3f0, W83977TF_SP1)
+
+void bootblock_mainboard_early_init(void)
+{
+	winbond_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
+}