+__weak struct serial_device *default_serial_console(void)
+{
+#if CONFIG_CONS_INDEX == 1
+ return &eserial1_device;
+#elif CONFIG_CONS_INDEX == 2
+ return &eserial2_device;
+#elif CONFIG_CONS_INDEX == 3
+ return &eserial3_device;
+#elif CONFIG_CONS_INDEX == 4
+ return &eserial4_device;
+#else
+#error "Bad CONFIG_CONS_INDEX."