linux-kernel - Re: [PATCH v2 3/6] arm64: dts: qcom: qcs615: Add mproc node for SEMP2P

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Message-ID: <a8a1aa0e-f53d-4a77-9199-958878563b9f@oss.qualcomm.com>
Date: Thu, 8 May 2025 16:40:23 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Lijuan Gao <quic_lijuang@...cinc.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: kernel@...cinc.com, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Kyle Deng <quic_chunkaid@...cinc.com>
Subject: Re: [PATCH v2 3/6] arm64: dts: qcom: qcs615: Add mproc node for
 SEMP2P

On 5/7/25 12:26 PM, Lijuan Gao wrote:
> From: Kyle Deng <quic_chunkaid@...cinc.com>
> 
> The Shared Memory Point to Point (SMP2P) protocol facilitates
> communication of a single 32-bit value between two processors.
> Add these two nodes for remoteproc enablement on QCS615 SoC.
> 
> Signed-off-by: Kyle Deng <quic_chunkaid@...cinc.com>
> Signed-off-by: Lijuan Gao <quic_lijuang@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/qcs615.dtsi | 43 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 43 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
> index 7c377f3402c1..53661e3a852e 100644
> --- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
> +++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
> @@ -332,6 +332,49 @@ mc_virt: interconnect-2 {
>  		qcom,bcm-voters = <&apps_bcm_voter>;
>  	};
>  
> +	smp2p-adsp {
> +		compatible = "qcom,smp2p";
> +		qcom,smem = <443>, <429>;
> +		interrupts = <GIC_SPI 172 IRQ_TYPE_EDGE_RISING>;
> +		mboxes = <&apss_shared 26>;

26 will poke at the SLPI instead

Konrad