1 files changed, 36 insertions, 16 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index 0542cfd181..aa43117134 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -495,34 +495,57 @@ int stmmac_mdio_reset(struct mii_bus *bus)
 	return 0;
 }
 
-int stmmac_xpcs_setup(struct mii_bus *bus)
+int stmmac_pcs_setup(struct net_device *ndev)
 {
-	struct net_device *ndev = bus->priv;
+	struct dw_xpcs *xpcs = NULL;
 	struct stmmac_priv *priv;
-	struct dw_xpcs *xpcs;
+	int ret = -ENODEV;
 	int mode, addr;
 
 	priv = netdev_priv(ndev);
 	mode = priv->plat->phy_interface;
 
-	/* Try to probe the XPCS by scanning all addresses. */
-	for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
-		xpcs = xpcs_create_mdiodev(bus, addr, mode);
-		if (IS_ERR(xpcs))
-			continue;
-
-		priv->hw->xpcs = xpcs;
-		break;
+	if (priv->plat->pcs_init) {
+		ret = priv->plat->pcs_init(priv);
+	} else if (priv->plat->mdio_bus_data &&
+		   priv->plat->mdio_bus_data->has_xpcs) {
+		/* Try to probe the XPCS by scanning all addresses */
+		for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
+			xpcs = xpcs_create_mdiodev(priv->mii, addr, mode);
+			if (IS_ERR(xpcs))
+				continue;
+
+			ret = 0;
+			break;
+		}
+	} else {
+		return 0;
 	}
 
-	if (!priv->hw->xpcs) {
+	if (ret) {
 		dev_warn(priv->device, "No xPCS found\n");
-		return -ENODEV;
+		return ret;
 	}
 
+	priv->hw->xpcs = xpcs;
+
 	return 0;
 }
 
+void stmmac_pcs_clean(struct net_device *ndev)
+{
+	struct stmmac_priv *priv = netdev_priv(ndev);
+
+	if (priv->plat->pcs_exit)
+		priv->plat->pcs_exit(priv);
+
+	if (!priv->hw->xpcs)
+		return;
+
+	xpcs_destroy(priv->hw->xpcs);
+	priv->hw->xpcs = NULL;
+}
+
 /**
  * stmmac_mdio_register
  * @ndev: net device structure
@@ -679,9 +702,6 @@ int stmmac_mdio_unregister(struct net_device *ndev)
 	if (!priv->mii)
 		return 0;
 
-	if (priv->hw->xpcs)
-		xpcs_destroy(priv->hw->xpcs);
-
 	mdiobus_unregister(priv->mii);
 	priv->mii->priv = NULL;
 	mdiobus_free(priv->mii);