arch/arm64/boot/dts/qcom/qcs404-evb-4000.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/qcs404-evb-4000.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/qcom/qcs404-evb-4000.dts
Extension
.dts
Size
1805 bytes
Lines
97
Domain
Architecture Layer
Bucket
arch/arm64
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) 2018, Linaro Limited
 */

/dts-v1/;

#include <dt-bindings/gpio/gpio.h>
#include "qcs404-evb.dtsi"

/ {
	model = "Qualcomm Technologies, Inc. QCS404 EVB 4000";
	compatible = "qcom,qcs404-evb-4000", "qcom,qcs404-evb",
		     "qcom,qcs404";
};

&ethernet {
	status = "okay";

	snps,reset-gpio = <&tlmm 60 GPIO_ACTIVE_LOW>;
	snps,reset-active-low;
	snps,reset-delays-us = <0 10000 10000>;

	pinctrl-names = "default";
	pinctrl-0 = <&ethernet_defaults>;

	phy-handle = <&phy1>;
	phy-mode = "rgmii";
	mdio {
		#address-cells = <1>;
		#size-cells = <0>;
		compatible = "snps,dwmac-mdio";
		phy1: phy@4 {
			compatible = "ethernet-phy-ieee802.3-c22";
			device_type = "ethernet-phy";
			reg = <0x4>;
		};
	};
};

&tlmm {
	ethernet_defaults: ethernet-defaults-state {
		int-pins {
			pins = "gpio61";
			function = "rgmii_int";
			bias-disable;
			drive-strength = <2>;
		};
		mdc-pins {
			pins = "gpio76";
			function = "rgmii_mdc";
			bias-pull-up;
		};
		mdio-pins {
			pins = "gpio75";
			function = "rgmii_mdio";
			bias-pull-up;
		};
		tx-pins {
			pins = "gpio67", "gpio66", "gpio65", "gpio64";
			function = "rgmii_tx";
			bias-pull-up;
			drive-strength = <16>;
		};
		rx-pins {
			pins = "gpio73", "gpio72", "gpio71", "gpio70";
			function = "rgmii_rx";
			bias-disable;
			drive-strength = <2>;
		};

Annotation

Implementation Notes