Armada 38x platforms marks all devices as coherent via mvebu_hwcc_notifier(), whereas the standard way to determine this is by of_dma_is_coherent(). Reflect the hardware capabilities by adding 'dma-coherent' properties to the device tree. Signed-off-by: Marcin Wojtas <mw@xxxxxxxxxxxx> --- arch/arm/boot/dts/armada-380.dtsi | 1 + arch/arm/boot/dts/armada-385.dtsi | 1 + arch/arm/boot/dts/armada-38x.dtsi | 1 + 3 files changed, 3 insertions(+) diff --git a/arch/arm/boot/dts/armada-380.dtsi b/arch/arm/boot/dts/armada-380.dtsi index ce1dddb2269b..25d17550e2fc 100644 --- a/arch/arm/boot/dts/armada-380.dtsi +++ b/arch/arm/boot/dts/armada-380.dtsi @@ -38,6 +38,7 @@ pcie { compatible = "marvell,armada-370-pcie"; status = "disabled"; device_type = "pci"; + dma-coherent; #address-cells = <3>; #size-cells = <2>; diff --git a/arch/arm/boot/dts/armada-385.dtsi b/arch/arm/boot/dts/armada-385.dtsi index 83392b92dae2..6fb8c254cbdc 100644 --- a/arch/arm/boot/dts/armada-385.dtsi +++ b/arch/arm/boot/dts/armada-385.dtsi @@ -37,6 +37,7 @@ pciec: pcie { compatible = "marvell,armada-370-pcie"; status = "disabled"; device_type = "pci"; + dma-coherent; #address-cells = <3>; #size-cells = <2>; diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi index 446861b6b17b..5801873dfcbe 100644 --- a/arch/arm/boot/dts/armada-38x.dtsi +++ b/arch/arm/boot/dts/armada-38x.dtsi @@ -102,6 +102,7 @@ internal-regs { #address-cells = <1>; #size-cells = <1>; ranges = <0 MBUS_ID(0xf0, 0x01) 0 0x100000>; + dma-coherent; sdramc: sdramc@1400 { compatible = "marvell,armada-xp-sdram-controller"; -- 2.29.0