| From | Arnd Bergmann <> | Date | Fri, 22 Apr 2022 15:06:38 +0200 | Subject | Re: [PATCH v5 10/11] arch: arm: boot: dts: Introduce HPE GXP Device tree |
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On Thu, Apr 21, 2022 at 9:21 PM <nick.hawkins@hpe.com> wrote:
> + axi { > + compatible = "simple-bus"; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges; > + dma-ranges; > + > + ahb@c0000000 { > + compatible = "simple-bus"; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0xc0000000 0x30000000>;
I think you should add a "dma-ranges" property in the ahb node as well, otherwise this would mean that none of the children are DMA capable, when at the minimum the USB controllers require DMA.
Arnd
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