2 files changed, 6 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt
index dcaabe9fe869..d87f7d2b7b0a 100644
--- a/Documentation/devicetree/bindings/net/cpsw.txt
+++ b/Documentation/devicetree/bindings/net/cpsw.txt
@@ -25,6 +25,8 @@ Required properties:
 - slave_reg_ofs         : Specifies slave register offset
 - sliver_reg_ofs        : Specifies slave sliver register offset
 - phy_id                : Specifies slave phy id
+- phy_if_mode           : Specified slave phy interface mode (optional)
+                          (one of the PHY_INTERFACE_MODE_* as numerical value)
 - mac-address           : Specifies slave MAC address
 
 Optional properties:
@@ -62,6 +64,7 @@ Examples:
                         slave_reg_ofs = <0x208>;
                         sliver_reg_ofs = <0xd80>;
                         phy_id = "davinci_mdio.16:00";
+                        phy_if_mode = <6>; /* PHY_INTERFACE_MODE_RGMII */
                         /* Filled in by U-Boot */
                         mac-address = [ 00 00 00 00 00 00 ];
                 };
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index df55e2403746..3e12db6f9c0c 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -855,6 +855,9 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
                 }
                 slave_data->sliver_reg_ofs = prop;
 
+                if (!of_property_read_u32(slave_node, "phy_if_mode", &prop))
+                        slave_data->phy_if = prop;
+
                 mac_addr = of_get_mac_address(slave_node);
                 if (mac_addr)
                         memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN);