From bb700603e66a1294049aa479ad560443496c893b Mon Sep 17 00:00:00 2001
From: Alex Marginean <alexandru.marginean@nxp.com>
Date: Fri, 20 Sep 2019 19:41:10 +0300
Subject: [PATCH] enetc: Handle USXGMII protocol

Adds USXGMII protocol which is now supported in Linux.  XGMII is kept for
compatibility although there is no plain XGMII support in ENETC.

Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
---
 drivers/net/ethernet/freescale/enetc/enetc_pf.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

--- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c
@@ -528,7 +528,8 @@ static void enetc_configure_port_mac(str
 	    phy_mode == PHY_INTERFACE_MODE_RGMII)
 		enetc_port_wr(hw, ENETC_PM0_IF_MODE, ENETC_PM0_IFM_RGAUTO);
 
-	if (phy_mode == PHY_INTERFACE_MODE_XGMII)
+	if (phy_mode == PHY_INTERFACE_MODE_XGMII ||
+	    phy_mode == PHY_INTERFACE_MODE_USXGMII)
 		enetc_port_wr(hw, ENETC_PM0_IF_MODE, ENETC_PM0_IFM_XGMII);
 }
 
@@ -844,7 +845,8 @@ static int enetc_configure_serdes(struct
 	int err;
 
 	if (priv->if_mode != PHY_INTERFACE_MODE_SGMII &&
-	    priv->if_mode != PHY_INTERFACE_MODE_XGMII)
+	    priv->if_mode != PHY_INTERFACE_MODE_XGMII &&
+	    priv->if_mode != PHY_INTERFACE_MODE_USXGMII)
 		return 0;
 
 	err = enetc_imdio_init(pf);
@@ -854,7 +856,8 @@ static int enetc_configure_serdes(struct
 	if (priv->if_mode == PHY_INTERFACE_MODE_SGMII)
 		enetc_configure_sgmii(pf->imdio);
 
-	if (priv->if_mode == PHY_INTERFACE_MODE_XGMII)
+	if (priv->if_mode == PHY_INTERFACE_MODE_XGMII ||
+	    priv->if_mode == PHY_INTERFACE_MODE_USXGMII)
 		enetc_configure_sxgmii(pf->imdio);
 
 	return 0;
