--- a/drivers/net/hieth-sf/net.c
+++ b/drivers/net/hieth-sf/net.c
@@ -674,7 +674,7 @@
 	.ndo_get_stats		= hieth_net_get_stats,
 };
 
-static int hieth_platdev_probe_port(struct platform_device *pdev, int port)
+static int hieth_platdev_probe_port(struct platform_device *pdev, int port, int hieth_mdio_if_u, int hieth_mdio_if_d, int hieth_phyaddr_u, int hieth_phyaddr_d)
 {
 	int ret = -1;
 	struct net_device *netdev = NULL;
@@ -685,6 +685,11 @@
 		ret = -ENODEV;
 		goto _error_exit;
 	}
+
+	printk(KERN_INFO "PHY probing %s hieth_mdio_if_u=%d, hieth_mdio_if_d=%d,"
+			" hieth_phyaddr_u=%d, hieth_phyaddr_d=%d\n",
+			UP_PORT ? "UP_PORT" : "DOWN_PORT", hieth_mdio_if_u,
+			hieth_mdio_if_d, hieth_phyaddr_u, hieth_phyaddr_d);
 
 	netdev = alloc_etherdev(sizeof(*ld));
 	if (netdev == NULL) {
@@ -816,7 +821,7 @@
 	return 0;
 }
 
-static void phy_quirk(struct hieth_mdio_local *mdio, int phyaddr)
+static void phy_quirk(struct hieth_mdio_local *mdio, int phyaddr, int hieth_mdio_if_u)
 {
 	unsigned long phy_id;
 	unsigned short id1, id2;
@@ -860,6 +865,28 @@
 	}
 }
 
+static struct {
+	int up;
+	int down;
+} trial_table[] = {
+	{ 1, 0 },
+	{ 1, 2 },
+	{ 0, 2 },
+};
+
+static void bruteforce_hieth(struct platform_device *pdev) {
+	int i;
+
+	for (i = 0; i < sizeof(trial_table) / sizeof(trial_table[0]); i++) {
+		if (!hieth_platdev_probe_port(pdev, UP_PORT, hieth_mdio_if_u,
+				hieth_mdio_if_d, trial_table[i].up, trial_table[i].down)) {
+			printk(KERN_INFO "PHY auto probing success, using u/d %d/%d\n",
+				trial_table[i].up, trial_table[i].down);
+			break;
+		}
+	}
+}
+
 static int hieth_plat_driver_probe(struct platform_device *pdev)
 {
 	int ret = -1;
@@ -877,13 +904,12 @@
 
 	hieth_verify_flow_ctrl_args();
 
-	hieth_platdev_probe_port(pdev, UP_PORT);
-#ifdef CONFIG_HIETH_DOWNPORT_EN
-	hieth_platdev_probe_port(pdev, DOWN_PORT);
-#endif
-
-	phy_quirk(&hieth_mdio_local_device, hieth_phyaddr_u);
-	phy_quirk(&hieth_mdio_local_device, hieth_phyaddr_d);
+	if (hieth_platdev_probe_port(pdev, UP_PORT, hieth_mdio_if_u, hieth_mdio_if_d, hieth_phyaddr_u, hieth_phyaddr_d))
+		if (hieth_platdev_probe_port(pdev, DOWN_PORT, hieth_mdio_if_u, hieth_mdio_if_d, hieth_phyaddr_u, hieth_phyaddr_d))
+			bruteforce_hieth(pdev);
+
+	phy_quirk(&hieth_mdio_local_device, hieth_phyaddr_u, hieth_mdio_if_u);
+	phy_quirk(&hieth_mdio_local_device, hieth_phyaddr_d, hieth_mdio_if_u);
 
 	if (hieth_devs_save[UP_PORT])
 		ndev = hieth_devs_save[UP_PORT];