diff --git a/configs/ap_sh4a_4a_defconfig b/configs/ap_sh4a_4a_defconfig
index b8d0b66..3cbccaf 100644
--- a/configs/ap_sh4a_4a_defconfig
+++ b/configs/ap_sh4a_4a_defconfig
@@ -2,6 +2,8 @@
 CONFIG_TARGET_AP_SH4A_4A=y
 CONFIG_ENV_IS_IN_FLASH=y
 CONFIG_BOOTDELAY=3
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttySC4,115200"
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_CMD_BDI is not set
 # CONFIG_CMD_CONSOLE is not set