Add common sensor device for Sophgo CV18xx SoCs and thermal zone for
CV1800b SoC.

Signed-off-by: Haylen Chu <heylenay@4d2.org>
---
 arch/riscv/boot/dts/sophgo/cv1800b.dtsi | 28 +++++++++++++++++++++++++
 arch/riscv/boot/dts/sophgo/cv18xx.dtsi  |  8 +++++++
 2 files changed, 36 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
index ec9530972ae2..af53c9ec3197 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv1800b.dtsi
@@ -12,6 +12,34 @@ memory@80000000 {
 		device_type = "memory";
 		reg = <0x80000000 0x4000000>;
 	};
+
+	thermal-zones {
+		soc-thermal {
+			polling-delay-passive   = <1000>;
+			polling-delay           = <1000>;
+			thermal-sensors         = <&soc_temp>;
+
+			trips {
+				soc_passive: soc-passive {
+					temperature     = <75000>;
+					hysteresis      = <5000>;
+					type            = "passive";
+				};
+
+				soc_hot: soc-hot {
+					temperature     = <85000>;
+					hysteresis      = <5000>;
+					type            = "hot";
+				};
+
+				soc_critical: soc-critical {
+					temperature     = <100000>;
+					hysteresis      = <0>;
+					type            = "critical";
+				};
+			};
+		};
+	};
 };
 
 &plic {
diff --git a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
index b724fb6d9689..0465561f7043 100644
--- a/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
+++ b/arch/riscv/boot/dts/sophgo/cv18xx.dtsi
@@ -133,6 +133,14 @@ portd: gpio-controller@0 {
 			};
 		};
 
+		soc_temp: thermal-sensor@30e0000 {
+			compatible = "sophgo,cv1800-thermal";
+			reg = <0x30e0000 0x100>;
+			clocks = <&clk CLK_TEMPSEN>;
+			interrupts = <16 IRQ_TYPE_LEVEL_HIGH>;
+			#thermal-sensor-cells = <0>;
+		};
+
 		i2c0: i2c@4000000 {
 			compatible = "snps,designware-i2c";
 			reg = <0x04000000 0x10000>;
-- 
2.46.2