arch/riscv/boot/dts/microchip/pic64gx-curiosity-kit.dts

Source file repositories/reference/linux-study-clean/arch/riscv/boot/dts/microchip/pic64gx-curiosity-kit.dts

File Facts

System
Linux kernel
Corpus path
arch/riscv/boot/dts/microchip/pic64gx-curiosity-kit.dts
Extension
.dts
Size
3955 bytes
Lines
173
Domain
Architecture Layer
Bucket
arch/riscv
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+ OR MIT)
/*
 * Device Tree Source for the PIC64GX Curiosity Kit
 *
 * Copyright (C) 2024 Microchip Technology Inc. and its subsidiaries
 *
 * Author: Pierre-Henry Moussay <pierre-henry.moussay@microchip.com>
 *
 * The Curiosity-GX10000 (PIC64GX SoC Curiosity Kit) is a compact SoC
 * prototyping board featuring a Microchip PIC64GX SoC
 * PIC64GX-1000. Features include:
 *  - 1 GB DDR4 SDRAM
 *  - Gigabit Ethernet
 *  - microSD-card slot
 *
 * https://www.microchip.com/en-us/development-tool/curiosity-pic64gx1000-kit-es
 */

/dts-v1/;

#include "pic64gx.dtsi"
#include "pic64gx-pinctrl.dtsi"

/* Clock frequency (in Hz) of the rtcclk */
#define RTCCLK_FREQ	1000000

/ {
	#address-cells = <2>;
	#size-cells = <2>;
	model = "Microchip PIC64GX Curiosity Kit";
	compatible = "microchip,pic64gx-curiosity-kit", "microchip,pic64gx";

	aliases {
		ethernet0 = &mac0;
		serial1 = &mmuart1;
		serial2 = &mmuart2;
	};

	chosen {
		stdout-path = "serial1:115200n8";
	};

	cpus {
		timebase-frequency = <RTCCLK_FREQ>;
	};

	memory@80000000 {
		device_type = "memory";
		reg = <0x0 0x80000000 0x0 0x40000000>;
	};

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

		hss: hss-buffer@bfc00000 {
			compatible = "shared-dma-pool";
			reg = <0x0 0xbfc00000 0x0 0x400000>;
			no-map;
		};
	};
};

&gpio0 {
	status ="okay";
	gpio-line-names =
		"", "", "", "", "", "", "", "",
		"", "", "", "", "MIPI_CAM_RESET", "MIPI_CAM_STANDBY";
};

Annotation

Implementation Notes