Re: [PATCH v2 1/3] arm64: dts: qcom: sdm630/660: Add CDSP-related nodes

[Konrad Dybcio]

On 10/23/25 9:51 PM, Nickolay Goppen wrote:
> In order to enable CDSP support for SDM660 SoC:
>  * add shared memory p2p nodes for CDSP
>  * add CDSP-specific smmu node
>  * add CDSP peripheral image loader node
> 
> Memory region for CDSP in SDM660 occupies the same spot as
> TZ buffer mem defined in sdm630.dtsi (which does not have CDSP).
> In sdm660.dtsi replace buffer_mem inherited from SDM630 with
> cdsp_region, which is also larger in size.
> 
> SDM636 also doesn't have CDSP, so remove inherited from sdm660.dtsi
> related nodes and add buffer_mem back.
> 
> Signed-off-by: Nickolay Goppen <setotau@xxxxxxxxxxxxxx>
> ---

[...]

> +			label = "turing";

"cdsp"

> +			mboxes = <&apcs_glb 29>;
> +			qcom,remote-pid = <5>;
> +
> +			fastrpc {
> +				compatible = "qcom,fastrpc";
> +				qcom,glink-channels = "fastrpcglink-apps-dsp";
> +				label = "cdsp";
> +				qcom,non-secure-domain;

This shouldn't matter, both a secure and a non-secure device is
created for CDSP

Konrad