This patch adds dma-coherent property for eTSEC nodes, so
coherent DMA operations are supported.
Signed-off-by: Alison Wang <alison.wang@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
                        model = "eTSEC";
                        fsl,magic-packet;
                        ranges;
+                       dma-coherent;
 
                        queue-group@2d10000 {
                                #address-cells = <2>;
                        interrupt-parent = <&gic>;
                        model = "eTSEC";
                        ranges;
+                       dma-coherent;
 
                        queue-group@2d50000  {
                                #address-cells = <2>;
                        interrupt-parent = <&gic>;
                        model = "eTSEC";
                        ranges;
+                       dma-coherent;
 
                        queue-group@2d90000  {
                                #address-cells = <2>;