arch/arm/boot/dts/ti/omap/omap4.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/ti/omap/omap4.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/ti/omap/omap4.dtsi
Extension
.dtsi
Size
22735 bytes
Lines
870
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: exported/initcall integration point
Status
integration implementation candidate

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

* interconnect as simple-pm-bus probes at module_init() time.
	 */
	ocmcram: sram@40304000 {
		compatible = "mmio-sram";
		reg = <0x40304000 0xa000>; /* 40k */
	};

	gic: interrupt-controller@48241000 {
		compatible = "arm,cortex-a9-gic";
		interrupt-controller;
		#interrupt-cells = <3>;
		reg = <0x48241000 0x1000>,
		      <0x48240100 0x0100>;
		interrupt-parent = <&gic>;
	};

	L2: cache-controller@48242000 {
		compatible = "arm,pl310-cache";
		reg = <0x48242000 0x1000>;
		cache-unified;
		cache-level = <2>;
	};

	local-timer@48240600 {
		compatible = "arm,cortex-a9-twd-timer";
		clocks = <&mpu_periphclk>;
		reg = <0x48240600 0x20>;
		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_EDGE_RISING)>;
		interrupt-parent = <&gic>;
	};

	wakeupgen: interrupt-controller@48281000 {
		compatible = "ti,omap4-wugen-mpu";
		interrupt-controller;
		#interrupt-cells = <3>;
		reg = <0x48281000 0x1000>;
		interrupt-parent = <&gic>;
	};

	/*
	 * XXX: Use a flat representation of the OMAP4 interconnect.
	 * The real OMAP interconnect network is quite complex.
	 * Since it will not bring real advantage to represent that in DT for
	 * the moment, just use a fake OCP bus entry to represent the whole bus
	 * hierarchy.
	 */
	ocp {
		compatible = "simple-pm-bus";
		power-domains = <&prm_l4per>;
		clocks = <&l3_1_clkctrl OMAP4_L3_MAIN_1_CLKCTRL 0>,
			 <&l3_2_clkctrl OMAP4_L3_MAIN_2_CLKCTRL 0>,
			 <&l3_instr_clkctrl OMAP4_L3_MAIN_3_CLKCTRL 0>;
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		l3-noc@44000000 {
			compatible = "ti,omap4-l3-noc";
			reg = <0x44000000 0x1000>,
			      <0x44800000 0x2000>,
			      <0x45000000 0x1000>;
			interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
				     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
		};

		l4_wkup: interconnect@4a300000 {
		};

		l4_cfg: interconnect@4a000000 {
		};

Annotation

Implementation Notes