3 files changed, 53 insertions, 7 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 38fe77d1035e..d0e82cb5ae03 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -251,7 +251,6 @@ static void intel_speed_mode_2500(struct net_device *ndev, void *intel_data)
 		priv->plat->mdio_bus_data->xpcs_an_inband = false;
 	} else {
 		priv->plat->max_speed = 1000;
-		priv->plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
 		priv->plat->mdio_bus_data->xpcs_an_inband = true;
 	}
 }
@@ -443,6 +442,7 @@ static void common_default_data(struct plat_stmmacenet_data *plat)
 static int intel_mgbe_common_data(struct pci_dev *pdev,
 				  struct plat_stmmacenet_data *plat)
 {
+	struct fwnode_handle *fwnode;
 	char clk_name[20];
 	int ret;
 	int i;
@@ -561,12 +561,42 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 	/* Use the last Rx queue */
 	plat->vlan_fail_q = plat->rx_queues_to_use - 1;
 
+	/* For fixed-link setup, we allow phy-mode setting */
+	fwnode = dev_fwnode(&pdev->dev);
+	if (fwnode) {
+		int phy_mode;
+
+		/* "phy-mode" setting is optional. If it is set,
+		 *  we allow either sgmii or 1000base-x for now.
+		 */
+		phy_mode = fwnode_get_phy_mode(fwnode);
+		if (phy_mode >= 0) {
+			if (phy_mode == PHY_INTERFACE_MODE_SGMII ||
+			    phy_mode == PHY_INTERFACE_MODE_1000BASEX)
+				plat->phy_interface = phy_mode;
+			else
+				dev_warn(&pdev->dev, "Invalid phy-mode\n");
+		}
+	}
+
 	/* Intel mgbe SGMII interface uses pcs-xcps */
-	if (plat->phy_interface == PHY_INTERFACE_MODE_SGMII) {
+	if (plat->phy_interface == PHY_INTERFACE_MODE_SGMII ||
+	    plat->phy_interface == PHY_INTERFACE_MODE_1000BASEX) {
 		plat->mdio_bus_data->has_xpcs = true;
 		plat->mdio_bus_data->xpcs_an_inband = true;
 	}
 
+	/* For fixed-link setup, we clear xpcs_an_inband */
+	if (fwnode) {
+		struct fwnode_handle *fixed_node;
+
+		fixed_node = fwnode_get_named_child_node(fwnode, "fixed-link");
+		if (fixed_node)
+			plat->mdio_bus_data->xpcs_an_inband = false;
+
+		fwnode_handle_put(fixed_node);
+	}
+
 	/* Ensure mdio bus scan skips intel serdes and pcs-xpcs */
 	plat->mdio_bus_data->phy_mask = 1 << INTEL_MGBE_ADHOC_ADDR;
 	plat->mdio_bus_data->phy_mask |= 1 << INTEL_MGBE_XPCS_ADDR;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index d1a7cf4567bc..fe263cad8248 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1128,18 +1128,20 @@ static void stmmac_check_pcs_mode(struct stmmac_priv *priv)
 static int stmmac_init_phy(struct net_device *dev)
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
-	struct device_node *node;
+	struct fwnode_handle *fwnode;
 	int ret;
 
-	node = priv->plat->phylink_node;
+	fwnode = of_fwnode_handle(priv->plat->phylink_node);
+	if (!fwnode)
+		fwnode = dev_fwnode(priv->device);
 
-	if (node)
-		ret = phylink_of_phy_connect(priv->phylink, node, 0);
+	if (fwnode)
+		ret = phylink_fwnode_phy_connect(priv->phylink, fwnode, 0);
 
 	/* Some DT bindings do not set-up the PHY handle. Let's try to
 	 * manually parse it
 	 */
-	if (!node || ret) {
+	if (!fwnode || ret) {
 		int addr = priv->plat->phy_addr;
 		struct phy_device *phydev;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
index 03d3d1f7aa4b..5f177ea80725 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
@@ -434,9 +434,11 @@ int stmmac_mdio_register(struct net_device *ndev)
 	int err = 0;
 	struct mii_bus *new_bus;
 	struct stmmac_priv *priv = netdev_priv(ndev);
+	struct fwnode_handle *fwnode = of_fwnode_handle(priv->plat->phylink_node);
 	struct stmmac_mdio_bus_data *mdio_bus_data = priv->plat->mdio_bus_data;
 	struct device_node *mdio_node = priv->plat->mdio_node;
 	struct device *dev = ndev->dev.parent;
+	struct fwnode_handle *fixed_node;
 	int addr, found, max_addr;
 
 	if (!mdio_bus_data)
@@ -490,6 +492,18 @@ int stmmac_mdio_register(struct net_device *ndev)
 	if (priv->plat->has_xgmac)
 		stmmac_xgmac2_mdio_read(new_bus, 0, MII_ADDR_C45);
 
+	/* If fixed-link is set, skip PHY scanning */
+	if (!fwnode)
+		fwnode = dev_fwnode(priv->device);
+
+	if (fwnode) {
+		fixed_node = fwnode_get_named_child_node(fwnode, "fixed-link");
+		if (fixed_node) {
+			fwnode_handle_put(fixed_node);
+			goto bus_register_done;
+		}
+	}
+
 	if (priv->plat->phy_node || mdio_node)
 		goto bus_register_done;