arch/arm64/boot/dts/apple/t8112.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/apple/t8112.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/apple/t8112.dtsi
Extension
.dtsi
Size
32933 bytes
Lines
1288
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
/*
 * Apple T8112 "M2" SoC
 *
 * Other names: H14G
 *
 * Copyright The Asahi Linux Contributors
 */

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/apple-aic.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/pinctrl/apple.h>
#include <dt-bindings/phy/phy.h>
#include <dt-bindings/spmi/spmi.h>

/ {
	compatible = "apple,t8112", "apple,arm-platform";

	#address-cells = <2>;
	#size-cells = <2>;

	aliases {
		gpu = &gpu;
	};

	cpus {
		#address-cells = <2>;
		#size-cells = <0>;

		cpu-map {
			cluster0 {
				core0 {
					cpu = <&cpu_e0>;
				};
				core1 {
					cpu = <&cpu_e1>;
				};
				core2 {
					cpu = <&cpu_e2>;
				};
				core3 {
					cpu = <&cpu_e3>;
				};
			};

			cluster1 {
				core0 {
					cpu = <&cpu_p0>;
				};
				core1 {
					cpu = <&cpu_p1>;
				};
				core2 {
					cpu = <&cpu_p2>;
				};
				core3 {
					cpu = <&cpu_p3>;
				};
			};
		};

		cpu_e0: cpu@0 {
			compatible = "apple,blizzard";
			device_type = "cpu";
			reg = <0x0 0x0>;
			enable-method = "spin-table";
			cpu-release-addr = <0 0>; /* To be filled by loader */
			operating-points-v2 = <&ecluster_opp>;
			capacity-dmips-mhz = <756>;

Annotation

Implementation Notes