arch/arm/boot/dts/intel/socfpga/socfpga_arria10_mercury_aa1.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/intel/socfpga/socfpga_arria10_mercury_aa1.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/intel/socfpga/socfpga_arria10_mercury_aa1.dtsi
Extension
.dtsi
Size
3278 bytes
Lines
181
Domain
Architecture Layer
Bucket
arch/arm
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
/*
 * Copyright 2022 Google LLC
 */

#include "socfpga_arria10.dtsi"

/ {

	model = "Enclustra Mercury+ AA1";
	compatible = "enclustra,mercury-aa1",
		     "altr,socfpga-arria10", "altr,socfpga";

	aliases {
		ethernet0 = &gmac0;
		serial1 = &uart1;
		spi0 = &qspi;
	};

	memory@0 {
		name = "memory";
		device_type = "memory";
		reg = <0x0 0x80000000>; /* 2GB */
	};

	chosen {
		stdout-path = "serial1:115200n8";
	};

	/* Adjusted the i2c labels to use generic base-board dtsi files for
	 * Enclustra Arria10 and Cyclone5 SoMs.
	 *
	 * The set of i2c0 and i2c1 labels defined in socfpga_cyclone5.dtsi and in
	 * socfpga_arria10.dtsi do not allow for using the same base-board .dtsi
	 * fragments. Thus define generic labels here to match the correct i2c
	 * bus in a generic base-board .dtsi file.
	 */
	soc {
		i2c_encl: i2c@ffc02300 {
		};
		i2c_encl_fpga: i2c@ffc02200 {
		};
	};
};

&i2c_encl {
	status = "okay";
	i2c-sda-hold-time-ns = <300>;
	clock-frequency = <100000>;

	atsha204a: crypto@64 {
		compatible = "atmel,atsha204a";
		reg = <0x64>;
	};

	isl12022: rtc@6f {
		compatible = "isil,isl12022";
		reg = <0x6f>;
	};
};

&i2c_encl_fpga {
	i2c-sda-hold-time-ns = <300>;
	status = "disabled";
};

&gmac0 {
	status = "okay";
	phy-mode = "rgmii-id";
	phy-addr = <0xffffffff>; /* probe for phy addr */

Annotation

Implementation Notes