smaeul-u-boot/arch/riscv/dts/k230.dtsi

// SPDX-License-Identifier: GPL-2.0 OR MIT
/*
 * Copyright (C) 2024 Yangyu Chen <cyy@cyyself.name>
 * Copyright (C) 2025 Junhui Liu <junhui.liu@pigmoral.tech>
 */

#include <dt-bindings/interrupt-controller/irq.h>

/ {
	#address-cells = <2>;
	#size-cells = <2>;
	compatible = "canaan,kendryte-k230";

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
		serial2 = &uart2;
		serial3 = &uart3;
		serial4 = &uart4;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;
		timebase-frequency = <27000000>;

		cpu@0 {
			compatible = "thead,c908", "riscv";
			device_type = "cpu";
			reg = <0>;
			riscv,isa = "rv64imafdcv_zicbom_zicbop_zicboz_zfh_zba_zbb_zbc_zbs_zvfh_svpbmt";
			riscv,isa-base = "rv64i";
			riscv,isa-extensions = "i", "m", "a", "f", "d", "c", "v", "zicbom",
					       "zicbop", "zicboz", "zicntr", "zicsr", "zifencei",
					       "zihpm", "zfh", "zba", "zbb", "zbc", "zbs", "zvfh",
					       "svpbmt";
			riscv,cbom-block-size = <64>;
			riscv,cbop-block-size = <64>;
			riscv,cboz-block-size = <64>;
			mmu-type = "riscv,sv39";

			cpu0_intc: interrupt-controller {
				compatible = "riscv,cpu-intc";
				interrupt-controller;
				#interrupt-cells = <1>;
			};
		};
	};

	apb_clk: apb-clk-clock {
		compatible = "fixed-clock";
		clock-frequency = <50000000>;
		clock-output-names = "apb_clk";
		#clock-cells = <0>;
	};

	clk_dummy: clock-dummy {
		compatible = "fixed-clock";
		clock-frequency = <0>;
		clock-output-names = "clk_dummy";
		#clock-cells = <0>;
	};

	reboot: syscon-reboot {
		compatible = "syscon-reboot";
		regmap = <&bootctl>;
		offset = <0x60>;
		mask = <0x10001>;
		value = <0x10001>;
	};

	soc {
		compatible = "simple-bus";
		interrupt-parent = <&plic>;
		#address-cells = <2>;
		#size-cells = <2>;
		dma-noncoherent;
		ranges;

		bootctl: syscon@0x91102000 {
			compatible = "syscon";
			reg = <0x0 0x91102000 0x0 0x1000>;
		};

		plic: interrupt-controller@f00000000 {
			compatible = "canaan,k230-plic" ,"thead,c900-plic";
			reg = <0xf 0x00000000 0x0 0x04000000>;
			interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>;
			interrupt-controller;
			#address-cells = <0>;
			#interrupt-cells = <2>;
			riscv,ndev = <208>;
		};

		clint: timer@f04000000 {
			compatible = "canaan,k230-clint", "thead,c900-clint";
			reg = <0xf 0x04000000 0x0 0x00010000>;
			interrupts-extended = <&cpu0_intc 3>, <&cpu0_intc 7>;
		};

		uart0: serial@91400000 {
			compatible = "snps,dw-apb-uart";
			reg = <0x0 0x91400000 0x0 0x1000>;
			clocks = <&apb_clk>;
			interrupts = <16 IRQ_TYPE_LEVEL_HIGH>;
			reg-io-width = <4>;
			reg-shift = <2>;
			status = "disabled";
		};

		uart1: serial@91401000 {
			compatible = "snps,dw-apb-uart";
			reg = <0x0 0x91401000 0x0 0x1000>;
			clocks = <&apb_clk>;
			interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
			reg-io-width = <4>;
			reg-shift = <2>;
			status = "disabled";
		};

		uart2: serial@91402000 {
			compatible = "snps,dw-apb-uart";
			reg = <0x0 0x91402000 0x0 0x1000>;
			clocks = <&apb_clk>;
			interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
			reg-io-width = <4>;
			reg-shift = <2>;
			status = "disabled";
		};

		uart3: serial@91403000 {
			compatible = "snps,dw-apb-uart";
			reg = <0x0 0x91403000 0x0 0x1000>;
			clocks = <&apb_clk>;
			interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
			reg-io-width = <4>;
			reg-shift = <2>;
			status = "disabled";
		};

		uart4: serial@91404000 {
			compatible = "snps,dw-apb-uart";
			reg = <0x0 0x91404000 0x0 0x1000>;
			clocks = <&apb_clk>;
			interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
			reg-io-width = <4>;
			reg-shift = <2>;
			status = "disabled";
		};

		usb0: usb@91500000 {
			compatible = "canaan,k230-otg", "snps,dwc2";
			reg = <0x0 0x91500000 0x0 0x40000>;
			interrupts = <173 IRQ_TYPE_LEVEL_HIGH>;
			clocks = <&clk_dummy>;
			clock-names = "otg";
			g-rx-fifo-size = <512>;
			g-np-tx-fifo-size = <64>;
			g-tx-fifo-size = <512 1024 64 64 64 64>;
			status = "disabled";
		};

		usb1: usb@91540000 {
			compatible = "canaan,k230-otg", "snps,dwc2";
			reg = <0x0 0x91540000 0x0 0x40000>;
			interrupts = <174 IRQ_TYPE_LEVEL_HIGH>;
			clocks = <&clk_dummy>;
			clock-names = "otg";
			g-rx-fifo-size = <512>;
			g-np-tx-fifo-size = <64>;
			g-tx-fifo-size = <512 1024 64 64 64 64>;
			status = "disabled";
		};
	};
};