arch/arm/boot/dts/microchip/lan966x-pcb8290.dts

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/lan966x-pcb8290.dts

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/lan966x-pcb8290.dts
Extension
.dts
Size
3762 bytes
Lines
197
Domain
Architecture Layer
Bucket
arch/arm
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)
/*
 * lan966x-pcb8290.dts - Device Tree file for LAN966X-PCB8290 board
 *
 * Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries
 *
 * Author: Horatiu Vultur <horatiu.vultur@microchip.com>
 */
/dts-v1/;
#include "lan966x.dtsi"
#include "dt-bindings/phy/phy-lan966x-serdes.h"

/ {
	model = "Microchip EVB LAN9668";
	compatible = "microchip,lan9668-pcb8290", "microchip,lan9668", "microchip,lan966";

	gpio-restart {
		compatible = "gpio-restart";
		gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
		priority = <200>;
	};
};

&aes {
	status = "disabled"; /* Reserved by secure OS */
};

&gpio {
	miim_a_pins: mdio-pins {
		/* MDC, MDIO */
		pins = "GPIO_28", "GPIO_29";
		function = "miim_a";
	};

	pps_out_pins: pps-out-pins {
		/* 1pps output */
		pins = "GPIO_38";
		function = "ptpsync_3";
	};

	ptp_ext_pins: ptp-ext-pins {
		/* 1pps input */
		pins = "GPIO_35";
		function = "ptpsync_0";
	};

	udc_pins: ucd-pins {
		/* VBUS_DET B */
		pins = "GPIO_8";
		function = "usb_slave_b";
	};
};

&mdio0 {
	pinctrl-0 = <&miim_a_pins>;
	pinctrl-names = "default";
	reset-gpios = <&gpio 53 GPIO_ACTIVE_LOW>;
	status = "okay";

	ext_phy0: ethernet-phy@7 {
		reg = <7>;
		interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
		interrupt-parent = <&gpio>;
		coma-mode-gpios = <&gpio 60 GPIO_OPEN_DRAIN>;
	};

	ext_phy1: ethernet-phy@8 {
		reg = <8>;
		interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
		interrupt-parent = <&gpio>;

Annotation

Implementation Notes