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

Krzysztof Kozlowski krzk at kernel.org
Mon May 26 23:54:42 PDT 2025


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 at whut.edu.cn>
> ---
>  .../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




More information about the linux-riscv mailing list