diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 6eef3251d833..c8b26259c9cf 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2369,23 +2369,25 @@ static int smsc911x_probe_config(struct smsc911x_platform_config *config,
 {
 	int phy_interface;
 	u32 width = 0;
+	int err;
 
 	phy_interface = device_get_phy_mode(dev);
 	if (phy_interface < 0)
-		return phy_interface;
-
+		phy_interface = PHY_INTERFACE_MODE_NA;
 	config->phy_interface = phy_interface;
 
 	device_get_mac_address(dev, config->mac, ETH_ALEN);
 
-	device_property_read_u32(dev, "reg-shift", &config->shift);
-
-	device_property_read_u32(dev, "reg-io-width", &width);
-	if (width == 4)
+	err = device_property_read_u32(dev, "reg-io-width", &width);
+	if (err == -ENXIO)
+		return err;
+	if (!err && width == 4)
 		config->flags |= SMSC911X_USE_32BIT;
 	else
 		config->flags |= SMSC911X_USE_16BIT;
 
+	device_property_read_u32(dev, "reg-shift", &config->shift);
+
 	if (device_property_present(dev, "smsc,irq-active-high"))
 		config->irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH;