arch/arm64/boot/dts/arm/juno-motherboard.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/arm/juno-motherboard.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/arm/juno-motherboard.dtsi
Extension
.dtsi
Size
8042 bytes
Lines
315
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

/ {
	mb_clk24mhz: clock-24000000 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <24000000>;
		clock-output-names = "juno_mb:clk24mhz";
	};

	mb_clk25mhz: clock-25000000 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <25000000>;
		clock-output-names = "juno_mb:clk25mhz";
	};

	v2m_refclk1mhz: clock-1000000 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <1000000>;
		clock-output-names = "juno_mb:refclk1mhz";
	};

	v2m_refclk32khz: clock-32768 {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <32768>;
		clock-output-names = "juno_mb:refclk32khz";
	};

	mb_fixed_3v3: regulator-3v3 {
		compatible = "regulator-fixed";
		regulator-name = "MCC_SB_3V3";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	gpio-keys {
		compatible = "gpio-keys";

		power-button {
			debounce-interval = <50>;
			wakeup-source;
			linux,code = <116>;
			label = "POWER";
			gpios = <&iofpga_gpio0 0 0x4>;
		};
		home-button {
			debounce-interval = <50>;
			wakeup-source;
			linux,code = <102>;
			label = "HOME";
			gpios = <&iofpga_gpio0 1 0x4>;
		};
		rlock-button {
			debounce-interval = <50>;
			wakeup-source;
			linux,code = <152>;
			label = "RLOCK";
			gpios = <&iofpga_gpio0 2 0x4>;
		};
		vol-up-button {
			debounce-interval = <50>;
			wakeup-source;
			linux,code = <115>;
			label = "VOL+";
			gpios = <&iofpga_gpio0 3 0x4>;
		};
		vol-down-button {
			debounce-interval = <50>;

Annotation

Implementation Notes