diff --git a/sys/arm/xilinx/zy7_qspi.c b/sys/arm/xilinx/zy7_qspi.c
--- a/sys/arm/xilinx/zy7_qspi.c
+++ b/sys/arm/xilinx/zy7_qspi.c
@@ -603,7 +603,7 @@
 	zy7_qspi_add_sysctls(dev);
 
 	/* Attach spibus driver as a child later when interrupts work. */
-	config_intrhook_oneshot((ich_func_t)bus_generic_attach, dev);
+	bus_delayed_attach_children(dev);
 
 	return (0);
 }
diff --git a/sys/arm/xilinx/zy7_spi.c b/sys/arm/xilinx/zy7_spi.c
--- a/sys/arm/xilinx/zy7_spi.c
+++ b/sys/arm/xilinx/zy7_spi.c
@@ -439,7 +439,7 @@
 	zy7_spi_add_sysctls(dev);
 
 	/* Attach spibus driver as a child later when interrupts work. */
-	config_intrhook_oneshot((ich_func_t)bus_generic_attach, dev);
+	bus_delayed_attach_children(dev);
 
 	return (0);
 }
diff --git a/sys/dev/iicbus/controller/opencores/iicoc_fdt.c b/sys/dev/iicbus/controller/opencores/iicoc_fdt.c
--- a/sys/dev/iicbus/controller/opencores/iicoc_fdt.c
+++ b/sys/dev/iicbus/controller/opencores/iicoc_fdt.c
@@ -127,7 +127,7 @@
 	}
 
 	/* Probe and attach the iicbus when interrupts are available. */
-	config_intrhook_oneshot((ich_func_t)bus_generic_attach, dev);
+	bus_delayed_attach_children(dev);
 
 	return (0);
 
diff --git a/sys/riscv/sifive/sifive_spi.c b/sys/riscv/sifive/sifive_spi.c
--- a/sys/riscv/sifive/sifive_spi.c
+++ b/sys/riscv/sifive/sifive_spi.c
@@ -346,7 +346,7 @@
 
 	/* Probe and attach the spibus when interrupts are available. */
 	sc->parent = device_add_child(dev, "spibus", DEVICE_UNIT_ANY);
-	config_intrhook_oneshot((ich_func_t)bus_generic_attach, dev);
+	bus_delayed_attach_children(dev);
 
 	return (0);