Linux-6.18.2/arch/mips/boot/dts/loongson/loongson1b.dtsi

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2023-2025 Keguang Zhang <keguang.zhang@gmail.com>
 */

/dts-v1/;
#include "loongson1.dtsi"

/ {
	cpu_opp_table: opp-table {
		compatible = "operating-points-v2";
		opp-shared;

		opp-44000000 {
			opp-hz = /bits/ 64 <44000000>;
		};
		opp-47142000 {
			opp-hz = /bits/ 64 <47142000>;
		};
		opp-50769000 {
			opp-hz = /bits/ 64 <50769000>;
		};
		opp-55000000 {
			opp-hz = /bits/ 64 <55000000>;
		};
		opp-60000000 {
			opp-hz = /bits/ 64 <60000000>;
		};
		opp-66000000 {
			opp-hz = /bits/ 64 <66000000>;
		};
		opp-73333000 {
			opp-hz = /bits/ 64 <73333000>;
		};
		opp-82500000 {
			opp-hz = /bits/ 64 <82500000>;
		};
		opp-94285000 {
			opp-hz = /bits/ 64 <94285000>;
		};
		opp-110000000 {
			opp-hz = /bits/ 64 <110000000>;
		};
		opp-132000000 {
			opp-hz = /bits/ 64 <132000000>;
		};
		opp-165000000 {
			opp-hz = /bits/ 64 <165000000>;
		};
		opp-220000000 {
			opp-hz = /bits/ 64 <220000000>;
		};
	};

	clkc: clock-controller@1fe78030 {
		compatible = "loongson,ls1b-clk";
		reg = <0x1fe78030 0x8>;
		clocks = <&xtal>;
		#clock-cells = <1>;
	};
};

&soc {
	syscon: syscon@420 {
		compatible = "loongson,ls1b-syscon", "syscon";
		reg = <0x420 0x8>;
	};

	dma: dma-controller@1160 {
		compatible = "loongson,ls1b-apbdma";
		reg = <0x1160 0x4>;
		interrupt-parent = <&intc0>;
		interrupts = <13 IRQ_TYPE_EDGE_RISING>,
			     <14 IRQ_TYPE_EDGE_RISING>,
			     <15 IRQ_TYPE_EDGE_RISING>;
		interrupt-names = "ch0", "ch1", "ch2";
		#dma-cells = <1>;
	};

	ehci: usb@100000 {
		compatible = "generic-ehci";
		reg = <0x100000 0x100>;
		interrupt-parent = <&intc1>;
		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
		status = "disabled";
	};

	ohci: usb@108000 {
		compatible = "generic-ohci";
		reg = <0x108000 0x100>;
		interrupt-parent = <&intc1>;
		interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
		status = "disabled";
	};

	gmac0: ethernet@110000 {
		compatible = "loongson,ls1b-gmac", "snps,dwmac-3.50a";
		reg = <0x110000 0x10000>;
		clocks = <&clkc LS1X_CLKID_AHB>;
		clock-names = "stmmaceth";
		interrupt-parent = <&intc1>;
		interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-names = "macirq";
		loongson,ls1-syscon = <&syscon>;
		snps,pbl = <1>;
		status = "disabled";
	};

	gmac1: ethernet@120000 {
		compatible = "loongson,ls1b-gmac", "snps,dwmac-3.50a";
		reg = <0x120000 0x10000>;
		clocks = <&clkc LS1X_CLKID_AHB>;
		clock-names = "stmmaceth";
		interrupt-parent = <&intc1>;
		interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-names = "macirq";
		loongson,ls1-syscon = <&syscon>;
		snps,pbl = <1>;
		status = "disabled";
	};
};

&apb {
	clocksource: timer@1c030 {
		compatible = "loongson,ls1b-pwmtimer";
		reg = <0x1c030 0x10>;
		clocks = <&clkc LS1X_CLKID_APB>;
		interrupt-parent = <&intc0>;
		interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
	};

	watchdog: watchdog@1c060 {
		compatible = "loongson,ls1b-wdt";
		reg = <0x1c060 0xc>;
		clocks = <&clkc LS1X_CLKID_APB>;
		status = "disabled";
	};

	rtc: rtc@24000 {
		compatible = "loongson,ls1b-rtc";
		reg = <0x24000 0x78>;
		interrupt-parent = <&intc0>;
		interrupts = <24 IRQ_TYPE_LEVEL_HIGH>;
		status = "disabled";
	};

	ac97: audio-controller@34000 {
		compatible = "loongson,ls1b-ac97";
		reg = <0x34000 0x60>, <0x32420 0x4>, <0x34c4c 0x4>;
		reg-names = "ac97", "audio-tx", "audio-rx";
		dmas = <&dma 1>, <&dma 2>;
		dma-names = "tx", "rx";
		#sound-dai-cells = <0>;
		status = "disabled";
	};

	nand: nand-controller@38000 {
		compatible = "loongson,ls1b-nand-controller";
		reg = <0x38000 0x24>, <0x38040 0x4>;
		reg-names = "nand", "nand-dma";
		dmas = <&dma 0>;
		dma-names = "rxtx";
		#address-cells = <1>;
		#size-cells = <0>;
		status = "disabled";

		nand@0 {
			reg = <0>;
			label = "ls1x-nand";
			nand-use-soft-ecc-engine;
			nand-ecc-algo = "hamming";
		};
	};
};

&cpu0 {
	operating-points-v2 = <&cpu_opp_table>;
};

&gpio0 {
	ngpios = <31>;
};

&gpio1 {
	ngpios = <30>;
};

&uart1 {
	interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
};

&uart2 {
	interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
};

&uart3 {
	interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
};