riscv: dts: th1520: add pvt dt node

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>

arch/riscv/boot/dts/thead/th1520.dtsi

@@ -128,6 +128,12 @@
 		#clock-cells = <0>;
 	};
 
+	aonsys_clk: aonsys-clk {
+		compatible = "fixed-clock";
+		clock-output-names = "aonsys_clk";
+		#clock-cells = <0>;
+	};
+
 	uart_sclk: uart-sclk-clock {
 		compatible = "fixed-clock";
 		clock-output-names = "uart_sclk";
@@ -607,6 +613,18 @@
 			};
 		};
 
+		pvt: pvt@fffff4e000 {
+			compatible = "moortec,mr75203";
+			reg = <0xff 0xfff4e000 0x0 0x80>,
+			      <0xff 0xfff4e080 0x0 0x100>,
+			      <0xff 0xfff4e180 0x0 0x680>,
+			      <0xff 0xfff4e800 0x0 0x600>;
+			reg-names = "common", "ts", "pd", "vm";
+			clocks = <&aonsys_clk>;
+			#thermal-sensor-cells = <1>;
+			status = "disabled";
+		};
+
 		ao_gpio1: gpio@fffff52000 {
 			compatible = "snps,dw-apb-gpio";
 			reg = <0xff 0xfff52000 0x0 0x1000>;