Add netpoll support

@@ -1700,6 +1700,15 @@
 	.rxde = &emac_rxde_dev,
 };
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static int emac_netpoll(struct net_device *ndev)
+{
+	emac_rxeob_dev((void *)ndev, 0);
+	emac_txeob_dev((void *)ndev, 0);
+	return 0;
+}
+#endif
+
 static int emac_init_device(struct ocp_device *ocpdev, struct ibm_ocp_mal *mal)
 {
 	int deferred_init = 0;

@@ -1882,6 +1891,9 @@
 	SET_ETHTOOL_OPS(ndev, &emac_ethtool_ops);
 	if (emacdata->tah_idx >= 0)
 		ndev->features = NETIF_F_IP_CSUM | NETIF_F_SG;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	ndev->poll_controller = emac_netpoll;
+#endif
 
 	SET_MODULE_OWNER(ndev);