diff --git a/arch/powerpc/platforms/82xx/ep8248e.c b/arch/powerpc/platforms/82xx/ep8248e.c
index 0eb6d7f6..51fcae4 100644
--- a/arch/powerpc/platforms/82xx/ep8248e.c
+++ b/arch/powerpc/platforms/82xx/ep8248e.c
@@ -14,6 +14,7 @@
 #include <linux/interrupt.h>
 #include <linux/fsl_devices.h>
 #include <linux/mdio-bitbang.h>
+#include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 
 #include <asm/io.h>
@@ -115,7 +116,7 @@
 	struct mii_bus *bus;
 	struct resource res;
 	struct device_node *node;
-	int ret, i;
+	int ret;
 
 	node = of_get_parent(ofdev->node);
 	of_node_put(node);
@@ -130,17 +131,13 @@
 	if (!bus)
 		return -ENOMEM;
 
-	bus->phy_mask = 0;
 	bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
 
-	for (i = 0; i < PHY_MAX_ADDR; i++)
-		bus->irq[i] = -1;
-
 	bus->name = "ep8248e-mdio-bitbang";
 	bus->parent = &ofdev->dev;
 	snprintf(bus->id, MII_BUS_ID_SIZE, "%x", res.start);
 
-	return mdiobus_register(bus);
+	return of_mdiobus_register(bus, ofdev->node);
 }
 
 static int ep8248e_mdio_remove(struct of_device *ofdev)