--- a/src/init/ssdk_plat.c
+++ b/src/init/ssdk_plat.c
@@ -561,7 +561,6 @@ static int miibus_get(a_uint32_t dev_id)
 	struct device_node *mdio_node = NULL;
 	struct device_node *switch_node = NULL;
 	struct platform_device *mdio_plat = NULL;
-	struct ipq40xx_mdio_data *mdio_data = NULL;
 	struct qca_phy_priv *priv;
 	hsl_reg_mode reg_mode = HSL_REG_LOCAL_BUS;
 	priv = qca_phy_priv_global[dev_id];
@@ -596,12 +595,7 @@ static int miibus_get(a_uint32_t dev_id)
 
 	if(reg_mode == HSL_REG_LOCAL_BUS)
 	{
-		mdio_data = dev_get_drvdata(&mdio_plat->dev);
-		if (!mdio_data) {
-			SSDK_ERROR("cannot get mdio_data reference from device data\n");
-			return 1;
-		}
-		priv->miibus = mdio_data->mii_bus;
+		priv->miibus = of_mdio_find_bus(mdio_node);
 	}
 	else
 		priv->miibus = dev_get_drvdata(&mdio_plat->dev);