Index: sys/dev/extres/syscon/syscon_generic.h
===================================================================
--- sys/dev/extres/syscon/syscon_generic.h
+++ sys/dev/extres/syscon/syscon_generic.h
@@ -29,7 +29,10 @@
 #ifndef DEV_SYSCON_GENERIC_H
 #define DEV_SYSCON_GENERIC_H
 
+#include <dev/fdt/simplebus.h>
+
 struct syscon_generic_softc {
+	struct simplebus_softc  sc_simplebus;
 	device_t		dev;
 	struct syscon		*syscon;
 	struct resource		*mem_res;
Index: sys/dev/extres/syscon/syscon_generic.c
===================================================================
--- sys/dev/extres/syscon/syscon_generic.c
+++ sys/dev/extres/syscon/syscon_generic.c
@@ -46,6 +46,8 @@
 
 #include <machine/bus.h>
 
+#include <dev/fdt/simplebus.h>
+
 #include <dev/ofw/ofw_bus.h>
 #include <dev/ofw/ofw_bus_subr.h>
 
@@ -60,6 +62,7 @@
     uint32_t val);
 static int syscon_generic_modify_4(struct syscon *syscon, bus_size_t offset,
     uint32_t clear_bits, uint32_t set_bits);
+static int syscon_generic_get_handle(device_t dev, struct syscon **syscon);
 
 /*
  * Generic syscon driver (FDT)
@@ -84,8 +87,8 @@
 
 	SYSCONMETHOD_END
 };
-DEFINE_CLASS_1(syscon_generic, syscon_generic_class, syscon_generic_methods,
-    0, syscon_class);
+DEFINE_CLASS_1(syscon_generic_syscon, syscon_generic_class,
+    syscon_generic_methods, 0, syscon_class);
 
 static uint32_t
 syscon_generic_read_4(struct syscon *syscon, bus_size_t offset)
@@ -133,6 +136,19 @@
 }
 
 static int
+syscon_generic_get_handle(device_t dev, struct syscon **syscon)
+{
+	struct syscon_generic_softc *sc;
+
+	sc = device_get_softc(dev);
+	*syscon = sc->syscon;
+	if (*syscon == NULL)
+		return (ENODEV);
+
+	return (0);
+}
+
+static int
 syscon_generic_probe(device_t dev)
 {
 
@@ -145,6 +161,9 @@
 	if (!bootverbose)
 		device_quiet(dev);
 
+	if (ofw_bus_is_compatible(dev, "simple-bus")) {
+		return (BUS_PROBE_DEFAULT);
+	}
 	return (BUS_PROBE_GENERIC);
 }
 
@@ -172,6 +191,10 @@
 		device_printf(dev, "Failed to create/register syscon\n");
 		return (ENXIO);
 	}
+
+	if (ofw_bus_is_compatible(dev, "simple-bus"))
+		simplebus_attach(sc->dev);
+
 	return (0);
 }
 
@@ -186,6 +209,9 @@
 		free(sc->syscon, M_SYSCON);
 	}
 
+	if (ofw_bus_is_compatible(dev, "simple-bus"))
+		simplebus_detach(sc->dev);
+
 	SYSCON_LOCK_DESTROY(sc);
 
 	if (sc->mem_res != NULL)
@@ -199,13 +225,16 @@
 	DEVMETHOD(device_attach,	syscon_generic_attach),
 	DEVMETHOD(device_detach,	syscon_generic_detach),
 
+	DEVMETHOD(syscon_get_handle,	syscon_generic_get_handle),
+
 	DEVMETHOD_END
 };
 
-DEFINE_CLASS_0(syscon_generic, syscon_generic_driver, syscon_generic_dmethods,
-    sizeof(struct syscon_generic_softc));
+DEFINE_CLASS_1(syscon_generic, syscon_generic_driver, syscon_generic_dmethods,
+    sizeof(struct syscon_generic_softc), simplebus_driver);
 static devclass_t syscon_generic_devclass;
 
 EARLY_DRIVER_MODULE(syscon_generic, simplebus, syscon_generic_driver,
-    syscon_generic_devclass, 0, 0, BUS_PASS_DEFAULT);
+    syscon_generic_devclass, 0, 0, BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
 MODULE_VERSION(syscon_generic, 1);
+