arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/renesas/rzg3e-smarc-som.dtsi
Extension
.dtsi
Size
9139 bytes
Lines
431
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)
/*
 * Device Tree Source for the R9A09G047E57 SMARC SoM board.
 *
 * Copyright (C) 2024 Renesas Electronics Corp.
 */

/*
 * Please set the below switch position on the SoM and the corresponding macro
 * on the board DTS:
 *
 * Switch position SYS.1, Macro SW_SD0_DEV_SEL:
 *      0 - SD0 is connected to eMMC (default)
 *      1 - SD0 is connected to uSD0 card
 *
 * Switch position SYS.4, Macro SW_SER2_EN:
 *      0 - Select Module DSI connector(GPIO)
 *      1 - Select SER2
 *
 * Switch position SYS.5, Macro SW_LCD_EN:
 *      0 - Select Misc. Signals routing
 *      1 - Select LCD
 *
 * Switch position BOOT.6, Macro SW_PDM_EN:
 *      0 - Select CAN routing
 *      1 - Select PDM
 */

/ {
	compatible = "renesas,rzg3e-smarcm", "renesas,r9a09g047e57", "renesas,r9a09g047";

	aliases {
		ethernet0 = &eth0;
		ethernet1 = &eth1;
		i2c2 = &i2c2;
		mmc0 = &sdhi0;
		mmc2 = &sdhi2;
	};

	memory@48000000 {
		device_type = "memory";
		/* First 128MB is reserved for secure area. */
		reg = <0x0 0x48000000 0x0 0xf8000000>;
	};

	pcie_refclk: pcie-ref-clock {
		compatible = "fixed-clock";
		#clock-cells = <0>;
		clock-frequency = <100000000>;
	};

	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;
	};

	reg_vdd0p8v_others: regulator-vdd0p8v-others {

Annotation

Implementation Notes