diff --git a/sys/dev/gpio/pl061.c b/sys/dev/gpio/pl061.c
--- a/sys/dev/gpio/pl061.c
+++ b/sys/dev/gpio/pl061.c
@@ -460,6 +460,9 @@
 		goto free_mem;
 	}
 
+	/* Mask all interrupts. They will be unmasked as needed later */
+	bus_write_1(sc->sc_mem_res, PL061_INTMASK, 0);
+
 	ret = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_MISC | INTR_MPSAFE,
 	    pl061_intr, NULL, sc, &sc->sc_irq_hdlr);
 	if (ret) {