u-boot/arch/arm/dts/at91-kstr-sama5d27.dts

// SPDX-License-Identifier: GPL-2.0+ OR X11
/*
 * at91-kstr-sama5d27.dts - Device Tree file for Conclusive KSTR-SAMA5D27 board
 *
 *  Copyright (C) 2019-2023 Conclusive Engineering Sp. z o. o.
 *
 */
/dts-v1/;

#include "sama5d2.dtsi"
#include "sama5d2-pinfunc.h"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/mfd/atmel-flexcom.h>

/ {
	model = "Conclusive KSTR-SAMA5D27";
	compatible = "conclusive,kstr-sama5d27", "atmel,sama5d2", "atmel,sama5";

	chosen {
		stdout-path = &uart1;
	};

	aliases {
		i2c2 = &i2c6;
	};
};

&main_xtal {
	clock-frequency = <12000000>;
};

&sdmmc0 {
	bus-width = <4>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_sdmmc0_cmd_dat_default &pinctrl_sdmmc0_ck_cd_default>;
	status = "okay";
};

&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_uart1_default>;
	status = "okay";
};

&macb0 {
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_macb0_rmii &pinctrl_macb0_phy_irq>;
	phy-mode = "rmii";
	status = "okay";

	ethernet-phy@0 {
		reg = <0x0>;
		reset-gpios = <&pioA 44 GPIO_ACTIVE_LOW>;
	};
};

&flx4 {
	atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
	status = "okay";
};

&i2c6 {
	clock-frequency = <100000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_flx4_i2c>;
	status = "okay";

	eeprom: eeprom@50 {
		compatible = "microchip,24c32", "atmel,24c32";
		reg = <0x50>;
		read-only;
		pagesize = <32>;
		status = "okay";
	};
};

&pioA {
	pinctrl {
		pinctrl_uart1_default: uart1_default {
			pinmux = <PIN_PD2__URXD1>,
				 <PIN_PD3__UTXD1>;
			bias-disable;
		};

		pinctrl_macb0_phy_irq: macb0_phy_irq {
			pinmux = <PIN_PB13__GPIO>;
			bias-disable;
		};

		pinctrl_macb0_rmii: macb0_rmii {
			pinmux = <PIN_PB14__GTXCK>,
				 <PIN_PB15__GTXEN>,
				 <PIN_PB16__GRXDV>,
				 <PIN_PB17__GRXER>,
				 <PIN_PB18__GRX0>,
				 <PIN_PB19__GRX1>,
				 <PIN_PB20__GTX0>,
				 <PIN_PB21__GTX1>,
				 <PIN_PB22__GMDC>,
				 <PIN_PB23__GMDIO>;
			bias-disable;
		};

		pinctrl_sdmmc0_cmd_dat_default: sdmmc0_cmd_dat_default {
			pinmux = <PIN_PA1__SDMMC0_CMD>,
				 <PIN_PA2__SDMMC0_DAT0>,
				 <PIN_PA3__SDMMC0_DAT1>,
				 <PIN_PA4__SDMMC0_DAT2>,
				 <PIN_PA5__SDMMC0_DAT3>;
			bias-pull-up;
		};

		pinctrl_sdmmc0_ck_cd_default: sdmmc0_ck_cd_default {
			pinmux = <PIN_PA0__SDMMC0_CK>,
				 <PIN_PA11__SDMMC0_VDDSEL>,
				 <PIN_PA13__SDMMC0_CD>;
			bias-disable;
		};

		pinctrl_flx4_i2c: flx4_i2c {
			pinmux = <PIN_PC28__FLEXCOM4_IO0>,
				 <PIN_PC29__FLEXCOM4_IO1>;
			bias-disable;
		};
	};
};