linux-kernel - [PATCH v3 3/6] arm64: dts: qcom: qcs615: Add mproc node for SEMP2P

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Message-ID: <20250516-add_qcs615_remoteproc_support-v3-3-ad12ceeafdd0@quicinc.com>
Date: Fri, 16 May 2025 11:27:04 +0800
From: Lijuan Gao <quic_lijuang@...cinc.com>
To: 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>, Lijuan Gao <quic_lijuang@...cinc.com>,
        "Kyle
 Deng" <quic_chunkaid@...cinc.com>
Subject: [PATCH v3 3/6] arm64: dts: qcom: qcs615: Add mproc node for SEMP2P

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 | 44 ++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
index f08ba09772f333adaade2d30897cf50c555a4d12..f922349758d11ec7fda1c43736a4bf290916e67f 100644
--- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
@@ -332,6 +332,50 @@ 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>;
+		/* On this platform, bit 26 (normally SLPI) is repurposed for ADSP */
+		mboxes = <&apss_shared 26>;
+
+		qcom,local-pid = <0>;
+		qcom,remote-pid = <2>;
+
+		adsp_smp2p_out: master-kernel {
+			qcom,entry-name = "master-kernel";
+			#qcom,smem-state-cells = <1>;
+		};
+
+		adsp_smp2p_in: slave-kernel {
+			qcom,entry-name = "slave-kernel";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+	};
+
+	smp2p-cdsp {
+		compatible = "qcom,smp2p";
+		qcom,smem = <94>, <432>;
+		interrupts = <GIC_SPI 576 IRQ_TYPE_EDGE_RISING>;
+		mboxes = <&apss_shared 6>;
+
+		qcom,local-pid = <0>;
+		qcom,remote-pid = <5>;
+
+		cdsp_smp2p_out: master-kernel {
+			qcom,entry-name = "master-kernel";
+			#qcom,smem-state-cells = <1>;
+		};
+
+		cdsp_smp2p_in: slave-kernel {
+			qcom,entry-name = "slave-kernel";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+
+	};
+
 	qup_opp_table: opp-table-qup {
 		compatible = "operating-points-v2";
 		opp-shared;

-- 
2.34.1