On Sun, Mar 28, 2021 at 9:40 AM Sven Peter <sven@xxxxxxxxxxxxx> wrote: I noticed only one detail here: > + - |+ > + dart2a: dart2a@82f00000 { > + compatible = "apple,t8103-dart"; > + reg = <0x82f00000 0x4000>; > + interrupts = <1 781 4>; > + #iommu-cells = <1>; > + }; The name of the iommu should be iommu@82f00000, not dart2a@82f00000. Arnd