dt-bindings: net: mediatek: add optional properties for the SoC ethernet core

Introduce dma-coherent, cci-control and hifsys optional properties to
the mediatek ethernet controller bindings

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/Documentation/devicetree/bindings/net/mediatek-net.txt b/Documentation/devicetree/bindings/net/mediatek-net.txt
index 72d03e0..13cb12e 100644 (file)
--- a/Documentation/devicetree/bindings/net/mediatek-net.txt
+++ b/Documentation/devicetree/bindings/net/mediatek-net.txt
@@ -41,6 +41,12 @@ Required properties:
 - mediatek,pctl: phandle to the syscon node that handles the ports slew rate
        and driver current: only for MT2701 and MT7623 SoC
 
+Optional properties:
+- dma-coherent: present if dma operations are coherent
+- mediatek,cci-control: phandle to the cache coherent interconnect node
+- mediatek,hifsys: phandle to the mediatek hifsys controller used to provide
+       various clocks and reset to the system.
+
 * Ethernet MAC node
 
 Required properties: