arch/arm64/boot/dts/apple/t8012-pmgr.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/apple/t8012-pmgr.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/apple/t8012-pmgr.dtsi
Extension
.dtsi
Size
21796 bytes
Lines
838
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+ OR MIT
/*
 * PMGR Power domains for the Apple T8012 "T2" SoC
 *
 * Copyright (c) 2024 Nick Chan <towinchenmi@gmail.com>
 */

&pmgr {
	ps_cpu0: power-controller@80000 {
		compatible = "apple,t8010-pmgr-pwrstate", "apple,pmgr-pwrstate";
		reg = <0x80000 4>;
		#power-domain-cells = <0>;
		#reset-cells = <0>;
		label = "cpu0";
		apple,always-on; /* Core device */
	};

	ps_cpu1: power-controller@80008 {
		compatible = "apple,t8010-pmgr-pwrstate", "apple,pmgr-pwrstate";
		reg = <0x80008 4>;
		#power-domain-cells = <0>;
		#reset-cells = <0>;
		label = "cpu1";
		apple,always-on; /* Core device */
	};

	ps_cpm: power-controller@80040 {
		compatible = "apple,t8010-pmgr-pwrstate", "apple,pmgr-pwrstate";
		reg = <0x80040 4>;
		#power-domain-cells = <0>;
		#reset-cells = <0>;
		label = "cpm";
		apple,always-on; /* Core device */
	};

	ps_sio_busif: power-controller@80158 {
		compatible = "apple,t8010-pmgr-pwrstate", "apple,pmgr-pwrstate";
		reg = <0x80158 4>;
		#power-domain-cells = <0>;
		#reset-cells = <0>;
		label = "sio_busif";
	};

	ps_sio_p: power-controller@80160 {
		compatible = "apple,t8010-pmgr-pwrstate", "apple,pmgr-pwrstate";
		reg = <0x80160 4>;
		#power-domain-cells = <0>;
		#reset-cells = <0>;
		label = "sio_p";
		power-domains = <&ps_sio_busif>;
	};

	ps_iomux: power-controller@80150 {
		compatible = "apple,t8010-pmgr-pwrstate", "apple,pmgr-pwrstate";
		reg = <0x80150 4>;
		#power-domain-cells = <0>;
		#reset-cells = <0>;
		label = "iomux";
	};

	ps_sbr: power-controller@80100 {
		compatible = "apple,t8010-pmgr-pwrstate", "apple,pmgr-pwrstate";
		reg = <0x80100 4>;
		#power-domain-cells = <0>;
		#reset-cells = <0>;
		label = "sbr";
		apple,always-on; /* Apple fabric, critical block */
	};

	ps_aic: power-controller@80108 {

Annotation

Implementation Notes