arch/arm/boot/dts/lpc4357-ea4357-devkit.dts

/*
 * Embedded Artist LPC4357 Developer's Kit
 *
 * Copyright 2015 Joachim Eastwood <manabian@gmail.com>
 *
 * This code is released using a dual license strategy: BSD/GPL
 * You can choose the licence that better fits your requirements.
 *
 * Released under the terms of 3-clause BSD License
 * Released under the terms of GNU General Public License Version 2.0
 *
 */
/dts-v1/;

#include "lpc18xx.dtsi"
#include "lpc4357.dtsi"

#include "dt-bindings/input/input.h"
#include "dt-bindings/gpio/gpio.h"

/ {
	model = "Embedded Artists' LPC4357 Developer's Kit";
	compatible = "ea,lpc4357-developers-kit", "nxp,lpc4357", "nxp,lpc4350";

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
		serial2 = &uart2;
		serial3 = &uart3;
	};

	chosen {
		stdout-path = &uart0;
	};

	memory {
		device_type = "memory";
		reg = <0x28000000 0x2000000>; /* 32 MB */
	};

	/* vmmc is controlled by sdmmc host internally */
	vmmc: vmmc_fixed {
		compatible = "regulator-fixed";
		regulator-name = "vmmc-supply";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
	};

	gpio_joystick {
		compatible = "gpio-keys-polled";
		pinctrl-names = "default";
		pinctrl-0 = <&gpio_joystick_pins>;
		#address-cells = <1>;
		#size-cells = <0>;
		poll-interval = <100>;
		autorepeat;

		button@0 {
			label = "joy_enter";
			linux,code = <KEY_ENTER>;
			gpios = <&gpio LPC_GPIO(4,8) GPIO_ACTIVE_LOW>;
		};

		button@1 {
			label = "joy_left";
			linux,code = <KEY_LEFT>;
			gpios = <&gpio LPC_GPIO(4,9) GPIO_ACTIVE_LOW>;
		};

		button@2 {
			label = "joy_up";
			linux,code = <KEY_UP>;
			gpios = <&gpio LPC_GPIO(4,10) GPIO_ACTIVE_LOW>;
		};

		button@3 {
			label = "joy_right";
			linux,code = <KEY_RIGHT>;
			gpios = <&gpio LPC_GPIO(4,12) GPIO_ACTIVE_LOW>;
		};

		button@4 {
			label = "joy_down";
			linux,code = <KEY_DOWN>;
			gpios = <&gpio LPC_GPIO(4,13) GPIO_ACTIVE_LOW>;
		};
	};
};

&pinctrl {
	gpio_joystick_pins: gpio-joystick-pins {
		gpio_joystick_cfg {
			pins =	"p9_0", "p9_1", "pa_1", "pa_2", "pa_3";
			function = "gpio";
			input-enable;
			bias-disable;
		};
	};

	sdmmc_pins: sdmmc-pins {
		sdmmc_clk_cfg {
			pins = "pc_0";
			function = "sdmmc";
			slew-rate = <1>;
			bias-pull-down;
		};

		sdmmc_cmd_dat0_3_cfg {
			pins = "pc_4", "pc_5", "pc_6", "pc_7", "pc_10";
			function = "sdmmc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		sdmmc_cd_cfg {
			pins = "pc_8";
			function = "sdmmc";
			bias-pull-down;
			input-enable;
		};

		sdmmc_pow_cfg {
			pins = "pc_9";
			function = "sdmmc";
			bias-pull-down;
		};
	};

	uart0_pins: uart0-pins {
		uart0_rx_cfg {
			pins = "pf_11";
			function = "uart0";
			input-schmitt-disable;
			bias-disable;
			input-enable;
		};

		uart0_tx_cfg {
			pins = "pf_10";
			function = "uart0";
			bias-pull-down;
		};
	};
};

&mmcsd {
	status = "okay";
	bus-width = <4>;
	vmmc-supply = <&vmmc>;
	pinctrl-names = "default";
	pinctrl-0 = <&sdmmc_pins>;
};

&uart0 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_pins>;
};