arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1.dtsi

Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1.dtsi
Extension
.dtsi
Size
8482 bytes
Lines
400
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+ OR MIT)
/*
 * at91-sama5d27_wlsom1.dtsi - Device Tree file for SAMA5D27 WLSOM1
 *
 * Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries
 *
 * Author: Nicolas Ferre <nicolas.ferre@microcihp.com>
 * Author: Eugen Hristev <eugen.hristev@microcihp.com>
 */
#include "sama5d2.dtsi"
#include "sama5d2-pinfunc.h"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/mfd/atmel-flexcom.h>
#include <dt-bindings/pinctrl/at91.h>

/ {
	model = "Microchip SAMA5D27 WLSOM1";
	compatible = "microchip,sama5d27-wlsom1", "atmel,sama5d27", "atmel,sama5d2", "atmel,sama5";

	aliases {
		i2c0 = &i2c0;
	};

	clocks {
		slow_xtal {
			clock-frequency = <32768>;
		};

		main_xtal {
			clock-frequency = <24000000>;
		};
	};

	reg_5v: regulator-5v {
		compatible = "regulator-fixed";
		regulator-name = "VDD_MAIN";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-always-on;
	};

	wifi_pwrseq: wifi_pwrseq {
		compatible = "mmc-pwrseq-wilc1000";
		reset-gpios = <&pioA PIN_PA27 GPIO_ACTIVE_HIGH>;
		powerdown-gpios = <&pioA PIN_PA29 GPIO_ACTIVE_HIGH>;
		pinctrl-0 = <&pinctrl_wilc_pwrseq>;
		pinctrl-names = "default";
	};
};

&flx1 {
	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;

	uart6: serial@200 {
		pinctrl-0 = <&pinctrl_flx1_default>;
		pinctrl-names = "default";
	};
};

&i2c0 {
	pinctrl-0 = <&pinctrl_i2c0_default>;
	pinctrl-1 = <&pinctrl_i2c0_gpio>;
	pinctrl-names = "default", "gpio";
	sda-gpios = <&pioA PIN_PD21 GPIO_ACTIVE_HIGH>;
	scl-gpios = <&pioA PIN_PD22 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
	status = "okay";
};

&i2c1 {
	dmas = <0>, <0>;

Annotation

Implementation Notes