[RFC PATCH 2/3] arm64: dts: s32g2: add SCMI support

[Chester Lin]

Add a scmi node to support SCMI protocol 0x14 on NXP S32G2 platforms.

Signed-off-by: Chester Lin <clin at suse.com>
---
 arch/arm64/boot/dts/freescale/s32g2.dtsi | 26 ++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/s32g2.dtsi b/arch/arm64/boot/dts/freescale/s32g2.dtsi
index 59ea8a25aa4c..34652d36a9f1 100644
--- a/arch/arm64/boot/dts/freescale/s32g2.dtsi
+++ b/arch/arm64/boot/dts/freescale/s32g2.dtsi
@@ -72,11 +72,37 @@ timer {
 			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		scmi_shmem: memory at d0000000 {
+			compatible = "arm,scmi-shmem";
+			reg = <0 0xd0000000 0 0x400000>; /* 4 MiB */
+			no-map;
+		};
+	};
+
 	firmware {
 		psci {
 			compatible = "arm,psci-1.0";
 			method = "smc";
 		};
+
+		scmi {
+			compatible = "arm,scmi-smc";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			shmem = <&scmi_shmem>;
+			arm,smc-id = <0xc20000fe>;
+
+			scmi_clks: protocol at 14 {
+				reg = <0x14>;
+				#clock-cells = <1>;
+			};
+		};
+
 	};
 
 	soc {
-- 
2.33.1