arch/loongarch/boot/dts/loongson-2k0500-ref.dts

Source file repositories/reference/linux-study-clean/arch/loongarch/boot/dts/loongson-2k0500-ref.dts

File Facts

System
Linux kernel
Corpus path
arch/loongarch/boot/dts/loongson-2k0500-ref.dts
Extension
.dts
Size
1525 bytes
Lines
117
Domain
Architecture Layer
Bucket
arch/loongarch
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2023 Loongson Technology Corporation Limited
 */

/dts-v1/;

#include "loongson-2k0500.dtsi"

/ {
	compatible = "loongson,ls2k0500-ref", "loongson,ls2k0500";
	model = "Loongson-2K0500 Reference Board";

	aliases {
		ethernet0 = &gmac0;
		ethernet1 = &gmac1;
		serial0 = &uart0;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	memory@200000 {
		device_type = "memory";
		reg = <0x0 0x00200000 0x0 0x0ee00000>,
		      <0x0 0x90000000 0x0 0x60000000>;
	};

	reserved-memory {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		linux,cma {
			compatible = "shared-dma-pool";
			reusable;
			size = <0x0 0x2000000>;
			linux,cma-default;
		};
	};
};

&apbdma0 {
	status = "okay";
};

&nand {
	status = "okay";

	#address-cells = <1>;
	#size-cells = <0>;
	nand@0 {
		reg = <0>;
		label = "ls2k0500-nand";
		nand-use-soft-ecc-engine;
		nand-ecc-algo = "bch";
		nand-ecc-strength = <8>;
		nand-ecc-step-size = <512>;
	};
};

&apbdma3 {
	status = "okay";
};

&mmc0 {
	status = "okay";
	bus-width = <4>;
};

Annotation

Implementation Notes