1 files changed, 6 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt b/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt
index d01ed63d3ebb..42409bfe04c4 100644
--- a/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt
+++ b/Documentation/devicetree/bindings/net/amd-xgbe-phy.txt
@@ -8,10 +8,16 @@ Required properties:
    - SerDes integration registers (1/2)
    - SerDes integration registers (2/2)
 
+Optional properties:
+- amd,speed-set: Speed capabilities of the device
+    0 - 1GbE and 10GbE (default)
+    1 - 2.5GbE and 10GbE
+
 Example:
         xgbe_phy@e1240800 {
                 compatible = "amd,xgbe-phy-seattle-v1a", "ethernet-phy-ieee802.3-c45";
                 reg = <0 0xe1240800 0 0x00400>,
                       <0 0xe1250000 0 0x00060>,
                       <0 0xe1250080 0 0x00004>;
+                amd,speed-set = <0>;
         };