Re: [PATCH v4 2/4] dt-bindings: soc: spacemit: Add K1 MBUS controller

From: Ze Huang
Date: Tue May 27 2025 - 07:16:12 EST


On Tue, May 27, 2025 at 08:54:42AM +0200, Krzysztof Kozlowski wrote:
> On Mon, May 26, 2025 at 10:40:18PM GMT, Ze Huang wrote:
> > Some devices on the SpacemiT K1 SoC perform DMA through a memory bus
> > (MBUS) that is not their immediate parent in the device tree. This bus
> > uses a different address mapping than the CPU.
> >
> > To express this topology properly, devices are expected to use the
> > interconnects with name "dma-mem" to reference the MBUS controller.
> >
> > Signed-off-by: Ze Huang <huangze@xxxxxxxxxxx>
> > ---
> > .../bindings/soc/spacemit/spacemit,k1-mbus.yaml | 55 ++++++++++++++++++++++
> > 1 file changed, 55 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-mbus.yaml b/Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-mbus.yaml
>
> Memory bus controllers go to /memory-controllers/ directory.
>
> Best regards,
> Krzysztof

OK