diff --git a/arch/arm/dts/armada-37xx.dtsi b/arch/arm/dts/armada-37xx.dtsi
index 5400742..040e856 100644
--- a/arch/arm/dts/armada-37xx.dtsi
+++ b/arch/arm/dts/armada-37xx.dtsi
@@ -290,8 +290,9 @@
 				compatible = "marvell,mvebu-comphy", "marvell,comphy-armada-3700";
 				reg = <0x18300 0x28>,
 				      <0x1f300 0x3d000>;
-				mux-bitcount = <1>;
-				max-lanes = <2>;
+				mux-bitcount = <4>;
+				mux-lane-order = <1 0 2>;
+				max-lanes = <3>;
 			};
 		};
 
diff --git a/drivers/phy/marvell/comphy_a3700.c b/drivers/phy/marvell/comphy_a3700.c
index 90e594f..bf68f5d 100644
--- a/drivers/phy/marvell/comphy_a3700.c
+++ b/drivers/phy/marvell/comphy_a3700.c
@@ -13,6 +13,38 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+struct comphy_mux_data a3700_comphy_mux_data[] = {
+/* Lane 0 */
+	{
+		4,
+		{
+			{ PHY_TYPE_UNCONNECTED,	0x0 },
+			{ PHY_TYPE_SGMII1,	0x0 },
+			{ PHY_TYPE_USB3_HOST0,	0x1 },
+			{ PHY_TYPE_USB3_DEVICE,	0x1 }
+		}
+	},
+/* Lane 1 */
+	{
+		3,
+		{
+			{ PHY_TYPE_UNCONNECTED,	0x0},
+			{ PHY_TYPE_SGMII0,	0x0},
+			{ PHY_TYPE_PEX0,	0x1}
+		}
+	},
+/* Lane 2 */
+	{
+		4,
+		{
+			{ PHY_TYPE_UNCONNECTED,	0x0},
+			{ PHY_TYPE_SATA0,	0x0},
+			{ PHY_TYPE_USB3_HOST0,	0x1},
+			{ PHY_TYPE_USB3_DEVICE,	0x1}
+		}
+	},
+};
+
 struct sgmii_phy_init_data_fix {
 	u16 addr;
 	u16 value;
@@ -932,6 +964,10 @@ int comphy_a3700_init(struct chip_serdes_phy_config *chip_cfg,
 
 	debug_enter();
 
+	/* Initialize PHY mux */
+	chip_cfg->mux_data = a3700_comphy_mux_data;
+	comphy_mux_init(chip_cfg, serdes_map, COMPHY_SEL_ADDR);
+
 	for (lane = 0, comphy_map = serdes_map; lane < comphy_max_count;
 	     lane++, comphy_map++) {
 		debug("Initialize serdes number %d\n", lane);