dts/riscv/neorv32.dtsi

/*
 * Copyright (c) 2021,2025 Henrik Brix Andersen <henrik@brixandersen.dk>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/dts-v1/;

#include <skeleton.dtsi>
#include <zephyr/dt-bindings/gpio/gpio.h>

/ {
	chosen {
		zephyr,entropy = &trng;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		cpu0: cpu@0 {
			compatible = "neorv32,cpu", "riscv";
			reg = <0>;
			device_type = "cpu";

			intc: interrupt-controller {
				compatible = "riscv,cpu-intc";
				interrupt-controller;
				#address-cells = <1>;
				#interrupt-cells = <1>;

				firq: firq {
					#address-cells = <1>;
					interrupt-map-mask = <0x0 0xffffffff>;
					interrupt-map = <
						0  0 &intc 0 16
						0  1 &intc 0 17
						0  2 &intc 0 18
						0  3 &intc 0 19
						0  4 &intc 0 20
						0  5 &intc 0 21
						0  6 &intc 0 22
						0  7 &intc 0 23
						0  8 &intc 0 24
						0  9 &intc 0 25
						0 10 &intc 0 26
						0 11 &intc 0 27
						0 12 &intc 0 28
						0 13 &intc 0 29
						0 14 &intc 0 30
						0 15 &intc 0 31
					>;
					#interrupt-cells = <1>;
				};
			};
		};
	};

	soc {
		compatible = "simple-bus";
		interrupt-parent = <&firq>;
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		imem: memory@0 {
			compatible = "soc-nv-flash", "mmio-sram";
			status = "disabled";
		};

		dmem: memory@80000000 {
			compatible = "mmio-sram";
			status = "disabled";
		};

		bootrom: rom@ffe00000 {
			compatible = "neorv32,bootrom", "mmio-sram";
			status = "disabled";
			reg = <0xffe00000 0x10000>;
		};

		clint: clint@fff40000 {
			compatible = "neorv32,clint", "sifive,clint0";
			status = "disabled";
			reg = <0xfff40000 0x10000>;
			interrupts-extended = <&intc 3>;
		};

		mtimer: timer@fff4bff8 {
			compatible = "riscv,machine-timer";
			status = "disabled";
			reg = <0xfff4bff8 0x8 0xfff44000 0x8>;
			reg-names = "mtime", "mtimecmp";
			interrupts-extended = <&intc 7>;
		};

		uart0: serial@fff50000 {
			compatible = "neorv32,uart";
			status = "disabled";
			reg = <0xfff50000 0x10000>;
			interrupts = <2>, <3>;
			interrupt-names = "RX", "TX";
			syscon = <&sysinfo>;
		};

		uart1: serial@fff60000 {
			compatible = "neorv32,uart";
			status = "disabled";
			reg = <0xfff60000 0x10000>;
			interrupts = <4>, <5>;
			interrupt-names = "RX", "TX";
			syscon = <&sysinfo>;
		};

		trng: rng@fffa0000 {
			compatible = "neorv32,trng";
			status = "disabled";
			reg = <0xfffa0000 0x10000>;
			syscon = <&sysinfo>;
		};

		gpio: gpio@fffc0000 {
			compatible = "neorv32,gpio";
			status = "disabled";
			reg = <0xfffc0000 0x10000>;
			syscon = <&sysinfo>;
			gpio-controller;
			ngpios = <32>;
			#gpio-cells = <2>;
		};

		sysinfo: syscon@fffe0000 {
			compatible = "neorv-sysinfo", "syscon";
			status = "okay";
			reg = <0xfffe0000 0x10000>;
		};
	};
};