arch/arm64/boot/dts/broadcom/bcmbca/bcm63146.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/broadcom/bcmbca/bcm63146.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/broadcom/bcmbca/bcm63146.dtsi
Extension
.dtsi
Size
3255 bytes
Lines
146
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)
/*
 * Copyright 2022 Broadcom Ltd.
 */

#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>

/ {
	compatible = "brcm,bcm63146", "brcm,bcmbca";
	#address-cells = <2>;
	#size-cells = <2>;

	interrupt-parent = <&gic>;

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

		B53_0: cpu@0 {
			compatible = "brcm,brahma-b53";
			device_type = "cpu";
			reg = <0x0 0x0>;
			next-level-cache = <&L2_0>;
			enable-method = "psci";
		};

		B53_1: cpu@1 {
			compatible = "brcm,brahma-b53";
			device_type = "cpu";
			reg = <0x0 0x1>;
			next-level-cache = <&L2_0>;
			enable-method = "psci";
		};

		L2_0: l2-cache0 {
			compatible = "cache";
			cache-level = <2>;
			cache-unified;
		};
	};

	timer {
		compatible = "arm,armv8-timer";
		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
	};

	pmu: pmu {
		compatible = "arm,cortex-a53-pmu";
		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
			<GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
		interrupt-affinity = <&B53_0>, <&B53_1>;
	};

	clocks: clocks {
		periph_clk: periph-clk {
			compatible = "fixed-clock";
			#clock-cells = <0>;
			clock-frequency = <200000000>;
		};

		uart_clk: uart-clk {
			compatible = "fixed-factor-clock";
			#clock-cells = <0>;
			clocks = <&periph_clk>;
			clock-div = <4>;
			clock-mult = <1>;

Annotation

Implementation Notes