1 files changed, 9 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.txt b/Documentation/devicetree/bindings/ata/ahci-platform.txt
index 8bb8a76d42e..b519f9b699c 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.txt
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.txt
@@ -8,9 +8,18 @@ Required properties:
 - interrupts        : <interrupt mapping for SATA IRQ>
 - reg               : <registers mapping>
 
+Optional properties:
+- calxeda,port-phys: phandle-combophy and lane assignment, which maps each
+                        SATA port to a combophy and a lane within that
+                        combophy
+- dma-coherent      : Present if dma operations are coherent
+
 Example:
         sata@ffe08000 {
                 compatible = "calxeda,hb-ahci";
                 reg = <0xffe08000 0x1000>;
                 interrupts = <115>;
+                calxeda,port-phys = <&combophy5 0 &combophy0 0 &combophy0 1
+                                        &combophy0 2 &combophy0 3>;
+
         };