On Tue, Sep 24, 2019 at 08:12:38PM +0200, Nicolas Saenz Julienne wrote: > qoriq-mc's dpmacs DMA configuration is inherited from their parent node, > which acts a bus in this regard. So far it maked all devices as > dma-coherent but no dma-ranges recommendation is made. > > The truth is that the underlying interconnect has DMA constraints, so > add an empty dma-ranges in qoriq-mc's node in order for DT's DMA > configuration code to get the DMA constraints from it. > > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx> Updated subject prefix as 'arm64: dts: ...', and applied the patch. Shawn > --- > > arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 1 + > arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 1 + > arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi | 1 + > 3 files changed, 3 insertions(+) > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi > index c676d0771762..f0d0b6145b72 100644 > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi > @@ -698,6 +698,7 @@ > <0x00000000 0x08340000 0 0x40000>; /* MC control reg */ > msi-parent = <&its>; > iommu-map = <0 &smmu 0 0>; /* This is fixed-up by u-boot */ > + dma-ranges; > dma-coherent; > #address-cells = <3>; > #size-cells = <1>; > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi > index 7a0be8eaa84a..fd6036b7865c 100644 > --- a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi > +++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi > @@ -340,6 +340,7 @@ > <0x00000000 0x08340000 0 0x40000>; /* MC control reg */ > msi-parent = <&its>; > iommu-map = <0 &smmu 0 0>; /* This is fixed-up by u-boot */ > + dma-ranges; > dma-coherent; > #address-cells = <3>; > #size-cells = <1>; > diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi > index 408e0ecdce6a..3735bb139cb2 100644 > --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi > +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a.dtsi > @@ -868,6 +868,7 @@ > msi-parent = <&its>; > /* iommu-map property is fixed up by u-boot */ > iommu-map = <0 &smmu 0 0>; > + dma-ranges; > dma-coherent; > #address-cells = <3>; > #size-cells = <1>; > -- > 2.23.0 >
