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-rw-r--r--Documentation/devicetree/bindings/net/calxeda-xgmac.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/calxeda-xgmac.txt b/Documentation/devicetree/bindings/net/calxeda-xgmac.txt
index 411727a3f82..c8ae996bd8f 100644
--- a/Documentation/devicetree/bindings/net/calxeda-xgmac.txt
+++ b/Documentation/devicetree/bindings/net/calxeda-xgmac.txt
@@ -6,6 +6,9 @@ Required properties:
- interrupts : Should contain 3 xgmac interrupts. The 1st is main interrupt.
The 2nd is pwr mgt interrupt. The 3rd is low power state interrupt.
+Optional properties:
+- dma-coherent : Present if dma operations are coherent
+
Example:
ethernet@fff50000 {