arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/rzt2h-n2h-evk-common.dtsi
Extension
.dtsi
Size
14832 bytes
Lines
650
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)
/*
 * Common Device Tree Source for the RZ/T2H and RZ/N2H EVK boards.
 *
 * Copyright (C) 2025 Renesas Electronics Corp.
 */

#include <dt-bindings/clock/renesas,r9a09g077-cpg-mssr.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/net/mscc-phy-vsc8531.h>
#include <dt-bindings/net/renesas,r9a09g077-pcs-miic.h>
#include <dt-bindings/pinctrl/renesas,r9a09g077-pinctrl.h>

/ {
	aliases {
		ethernet3 = &gmac1;
		ethernet2 = &gmac2;
		i2c0 = &i2c0;
		i2c1 = &i2c1;
		mmc0 = &sdhi0;
		mmc1 = &sdhi1;
		serial0 = &sci0;
		spi0 = &xspi0;
		spi1 = &xspi1;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	reg_1p8v: regulator-1p8v {
		compatible = "regulator-fixed";
		regulator-name = "fixed-1.8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-boot-on;
		regulator-always-on;
	};

	reg_3p3v: regulator-3p3v {
		compatible = "regulator-fixed";
		regulator-name = "fixed-3.3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

#if SD0_SD
	vqmmc_sdhi0: regulator-vqmmc-sdhi0 {
		compatible = "regulator-gpio";
		regulator-name = "SDHI0 VqmmC";
		gpios = <&pinctrl RZT2H_GPIO(2, 6) GPIO_ACTIVE_HIGH>;
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <3300000>;
		gpios-states = <0>;
		states = <3300000 0>, <1800000 1>;
		regulator-ramp-delay = <60>;
	};
#endif

#if SD1_MICRO_SD
	vccq_sdhi1: regulator-vccq-sdhi1 {
		compatible = "regulator-gpio";
		regulator-name = "SDHI1 VccQ";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <3300000>;
		gpios = <&pinctrl RZT2H_GPIO(8, 6) GPIO_ACTIVE_HIGH>;
		gpios-states = <0>;

Annotation

Implementation Notes