[PATCH 08/16] arm64: dts: qcom: shikra: Add SMP2P nodes
From: Komal Bajaj
Date: Sun May 24 2026 - 15:56:23 EST
From: Vishnu Santhosh <vishnu.santhosh@xxxxxxxxxxxxxxxx>
Add SMP2P nodes for the cdsp, modem and lmcu subsystems to enable
inter-processor signalling for remoteproc state management.
Signed-off-by: Vishnu Santhosh <vishnu.santhosh@xxxxxxxxxxxxxxxx>
Signed-off-by: Komal Bajaj <komal.bajaj@xxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/shikra.dtsi | 69 ++++++++++++++++++++++++++++++++++++
1 file changed, 69 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/shikra.dtsi b/arch/arm64/boot/dts/qcom/shikra.dtsi
index bb1821e95248..2ea35e4442ef 100644
--- a/arch/arm64/boot/dts/qcom/shikra.dtsi
+++ b/arch/arm64/boot/dts/qcom/shikra.dtsi
@@ -412,6 +412,75 @@ lmcu_dtb_mem: lmcu-dtb@b4702000 {
};
};
+ smp2p-cdsp {
+ compatible = "qcom,smp2p";
+ qcom,smem = <94>, <432>;
+
+ interrupts = <GIC_SPI 263 IRQ_TYPE_EDGE_RISING 0>;
+
+ mboxes = <&apcs_glb 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>;
+ };
+ };
+
+ smp2p-lmcu {
+ compatible = "qcom,smp2p";
+ qcom,smem = <617>, <616>;
+
+ interrupts = <GIC_SPI 287 IRQ_TYPE_EDGE_RISING 0>;
+
+ mboxes = <&apcs_glb 10>;
+
+ qcom,local-pid = <0>;
+ qcom,remote-pid = <26>;
+
+ lmcu_smp2p_out: master-kernel {
+ qcom,entry-name = "master-kernel";
+ #qcom,smem-state-cells = <1>;
+ };
+
+ lmcu_smp2p_in: slave-kernel {
+ qcom,entry-name = "slave-kernel";
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
+
+ smp2p-mpss {
+ compatible = "qcom,smp2p";
+ qcom,smem = <435>, <428>;
+
+ interrupts = <GIC_SPI 70 IRQ_TYPE_EDGE_RISING 0>;
+
+ mboxes = <&apcs_glb 14>;
+
+ qcom,local-pid = <0>;
+ qcom,remote-pid = <1>;
+
+ modem_smp2p_out: master-kernel {
+ qcom,entry-name = "master-kernel";
+ #qcom,smem-state-cells = <1>;
+ };
+
+ modem_smp2p_in: slave-kernel {
+ qcom,entry-name = "slave-kernel";
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
+
soc: soc@0 {
compatible = "simple-bus";
--
2.34.1