arch/arm64/boot/dts/amd/elba-asic-common.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/amd/elba-asic-common.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/amd/elba-asic-common.dtsi
Extension
.dtsi
Size
1023 bytes
Lines
71
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-only OR BSD-2-Clause)
/*
 * Copyright 2020-2022 Advanced Micro Devices, Inc.
 */

&ahb_clk {
	clock-frequency = <400000000>;
};

&emmc_clk {
	clock-frequency = <200000000>;
};

&flash_clk {
	clock-frequency = <400000000>;
};

&ref_clk {
	clock-frequency = <156250000>;
};

&qspi {
	status = "okay";

	flash0: flash@0 {
		compatible = "jedec,spi-nor";
		reg = <0>;
		spi-max-frequency = <40000000>;
		spi-rx-bus-width = <2>;
		m25p,fast-read;
		cdns,read-delay = <0>;
		cdns,tshsl-ns = <0>;
		cdns,tsd2d-ns = <0>;
		cdns,tchsh-ns = <0>;
		cdns,tslch-ns = <0>;
	};
};

&gpio0 {
	status = "okay";
};

&emmc {
	bus-width = <8>;
	cap-mmc-hw-reset;
	status = "okay";
};

&wdt0 {
	status = "okay";
};

&i2c0 {
	clock-frequency = <100000>;
	status = "okay";

	rtc@51 {
		compatible = "nxp,pcf85263";
		reg = <0x51>;
	};
};

&spi0 {
	#address-cells = <1>;
	#size-cells = <0>;
	num-cs = <4>;
	cs-gpios = <0>, <0>, <&porta 1 GPIO_ACTIVE_LOW>,
		   <&porta 7 GPIO_ACTIVE_LOW>;
	status = "okay";
};

Annotation

Implementation Notes