1 files changed, 32 insertions, 2 deletions

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 3fe720c5dc9f..52f9ed8db9c9 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;
 	}
 }
@@ -449,6 +448,7 @@ 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;
@@ -567,12 +567,42 @@ 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;