arch/arm64/boot/dts/qcom/ipq9574-rdp433-common.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/ipq9574-rdp433-common.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/qcom/ipq9574-rdp433-common.dtsi
Extension
.dtsi
Size
2056 bytes
Lines
122
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: BSD-3-Clause
/*
 * IPQ9574 RDP433 board device tree source
 *
 * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved.
 * Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.
 */

&pcie1_phy {
	status = "okay";
};

&pcie1 {
	pinctrl-0 = <&pcie1_default>;
	pinctrl-names = "default";

	perst-gpios = <&tlmm 26 GPIO_ACTIVE_LOW>;
	wake-gpios = <&tlmm 27 GPIO_ACTIVE_LOW>;
	status = "okay";
};

&pcie2_phy {
	status = "okay";
};

&pcie2 {
	pinctrl-0 = <&pcie2_default>;
	pinctrl-names = "default";

	perst-gpios = <&tlmm 29 GPIO_ACTIVE_LOW>;
	wake-gpios = <&tlmm 30 GPIO_ACTIVE_LOW>;
	status = "okay";
};

&pcie3_phy {
	status = "okay";
};

&pcie3 {
	pinctrl-0 = <&pcie3_default>;
	pinctrl-names = "default";

	perst-gpios = <&tlmm 32 GPIO_ACTIVE_LOW>;
	wake-gpios = <&tlmm 33 GPIO_ACTIVE_LOW>;
	status = "okay";
};

&tlmm {

	pcie1_default: pcie1-default-state {
		clkreq-n-pins {
			pins = "gpio25";
			function = "pcie1_clk";
			drive-strength = <6>;
			bias-pull-up;
		};

		perst-n-pins {
			pins = "gpio26";
			function = "gpio";
			drive-strength = <8>;
			bias-pull-down;
			output-low;
		};

		wake-n-pins {
			pins = "gpio27";
			function = "pcie1_wake";
			drive-strength = <6>;
			bias-pull-up;

Annotation

Implementation Notes