diff --git a/sys/dev/ofw/ofw_cpu.c b/sys/dev/ofw/ofw_cpu.c
--- a/sys/dev/ofw/ofw_cpu.c
+++ b/sys/dev/ofw/ofw_cpu.c
@@ -189,6 +189,9 @@
 	if (type == NULL || strcmp(type, "cpu") != 0)
 		return (ENXIO);
 
+	if (!ofw_bus_status_okay(dev))
+		return (ENXIO);
+
 	device_set_desc(dev, "Open Firmware CPU");
 	if (!bootverbose && device_get_unit(dev) != 0) {
 		device_quiet(dev);