arch/powerpc/boot/dts/mpc8315erdb.dts

Source file repositories/reference/linux-study-clean/arch/powerpc/boot/dts/mpc8315erdb.dts

File Facts

System
Linux kernel
Corpus path
arch/powerpc/boot/dts/mpc8315erdb.dts
Extension
.dts
Size
12209 bytes
Lines
495
Domain
Architecture Layer
Bucket
arch/powerpc
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-later
/*
 * MPC8315E RDB Device Tree Source
 *
 * Copyright 2007 Freescale Semiconductor Inc.
 */

/dts-v1/;
#include <dt-bindings/interrupt-controller/irq.h>

/ {
	compatible = "fsl,mpc8315erdb";
	model = "MPC8315E-RDB";
	#address-cells = <1>;
	#size-cells = <1>;

	aliases {
		ethernet0 = &enet0;
		ethernet1 = &enet1;
		serial0 = &serial0;
		serial1 = &serial1;
		pci0 = &pci0;
		pci1 = &pci1;
		pci2 = &pci2;
	};

	cpus {
		#address-cells = <1>;
		#size-cells = <0>;

		PowerPC,8315@0 {
			device_type = "cpu";
			reg = <0x0>;
			d-cache-line-size = <32>;
			i-cache-line-size = <32>;
			d-cache-size = <16384>;
			i-cache-size = <16384>;
			timebase-frequency = <0>;	// from bootloader
			bus-frequency = <0>;		// from bootloader
			clock-frequency = <0>;		// from bootloader
		};
	};

	memory@0 {
		device_type = "memory";
		reg = <0x00000000 0x08000000>;	// 128MB at 0
	};

	localbus@e0005000 {
		#address-cells = <2>;
		#size-cells = <1>;
		compatible = "fsl,mpc8315-elbc", "fsl,elbc", "simple-bus";
		reg = <0xe0005000 0x1000>;
		interrupts = <77 IRQ_TYPE_LEVEL_LOW>;
		interrupt-parent = <&ipic>;

		// CS0 and CS1 are swapped when
		// booting from nand, but the
		// addresses are the same.
		ranges = <0x0 0x0 0xfe000000 0x00800000
		          0x1 0x0 0xe0600000 0x00002000
		          0x2 0x0 0xf0000000 0x00020000
		          0x3 0x0 0xfa000000 0x00008000>;

		flash@0,0 {
			#address-cells = <1>;
			#size-cells = <1>;
			compatible = "cfi-flash";
			reg = <0x0 0x0 0x800000>;
			bank-width = <2>;

Annotation

Implementation Notes