Index: head/sys/mips/mips/mips_pic.c
===================================================================
--- head/sys/mips/mips/mips_pic.c
+++ head/sys/mips/mips/mips_pic.c
@@ -448,9 +448,11 @@
 static devclass_t mips_pic_devclass;
 
 #ifdef FDT
-DRIVER_MODULE(cpupic, ofwbus, mips_pic_driver, mips_pic_devclass, 0, 0);
+EARLY_DRIVER_MODULE(cpupic, ofwbus, mips_pic_driver, mips_pic_devclass, 0, 0,
+    BUS_PASS_INTERRUPT);
 #else
-DRIVER_MODULE(cpupic, nexus, mips_pic_driver, mips_pic_devclass, 0, 0);
+EARLY_DRIVER_MODULE(cpupic, nexus, mips_pic_driver, mips_pic_devclass, 0, 0,
+    BUS_PASS_INTERRUPT);
 #endif
 
 void
Index: head/sys/mips/mips/nexus.c
===================================================================
--- head/sys/mips/mips/nexus.c
+++ head/sys/mips/mips/nexus.c
@@ -576,4 +576,5 @@
 	}
 }
 
-DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0);
+EARLY_DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0,
+    BUS_PASS_BUS + BUS_PASS_ORDER_EARLY);