Index: sys/boot/fdt/dts/arm/armada-38x.dtsi
===================================================================
--- sys/boot/fdt/dts/arm/armada-38x.dtsi
+++ sys/boot/fdt/dts/arm/armada-38x.dtsi
@@ -90,6 +90,7 @@
 		interrupt-parent = <&gic>;
 		pcie-mem-aperture = <0xe0000000 0x8000000>;
 		pcie-io-aperture  = <0xe8000000 0x100000>;
+		dma-coherent;
 
 		bootrom {
 			compatible = "marvell,bootrom";