arch/powerpc/boot/dts/sam440ep.dts

Source file repositories/reference/linux-study-clean/arch/powerpc/boot/dts/sam440ep.dts

File Facts

System
Linux kernel
Corpus path
arch/powerpc/boot/dts/sam440ep.dts
Extension
.dts
Size
7409 bytes
Lines
294
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

/dts-v1/;

/ {
	#address-cells = <2>;
	#size-cells = <1>;
	model = "acube,sam440ep";
	compatible = "acube,sam440ep";

	aliases {
		ethernet0 = &EMAC0;
		ethernet1 = &EMAC1;
		serial0 = &UART0;
		serial1 = &UART1;
		serial2 = &UART2;
		serial3 = &UART3;
	};

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

		cpu@0 {
			device_type = "cpu";
			model = "PowerPC,440EP";
			reg = <0>;
			clock-frequency = <0>; /* Filled in by zImage */
			timebase-frequency = <0>; /* Filled in by zImage */
			i-cache-line-size = <32>;
			d-cache-line-size = <32>;
			i-cache-size = <32768>;
			d-cache-size = <32768>;
			dcr-controller;
			dcr-access-method = "native";
		};
	};

	memory {
		device_type = "memory";
		reg = <0 0 0>; /* Filled in by zImage */
	};

	UIC0: interrupt-controller0 {
		compatible = "ibm,uic-440ep","ibm,uic";
		interrupt-controller;
		cell-index = <0>;
		dcr-reg = <0x0c0 9>;
		#address-cells = <0>;
		#size-cells = <0>;
		#interrupt-cells = <2>;
	};

	UIC1: interrupt-controller1 {
		compatible = "ibm,uic-440ep","ibm,uic";
		interrupt-controller;
		cell-index = <1>;
		dcr-reg = <0x0d0 9>;
		#address-cells = <0>;
		#size-cells = <0>;
		#interrupt-cells = <2>;
		interrupts = <0x1e 4 0x1f 4>; /* cascade */
		interrupt-parent = <&UIC0>;
	};

	SDR0: sdr {
		compatible = "ibm,sdr-440ep";
		dcr-reg = <0x00e 2>;
	};

	CPR0: cpr {
		compatible = "ibm,cpr-440ep";

Annotation

Implementation Notes