arch/arm/boot/dts/lpc4350-hitex-eval.dts

/*
 * Hitex LPC4350 Evaluation Board
 *
 * Copyright 2015 Ariel D'Alessandro <ariel.dalessandro@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 "lpc4350.dtsi"

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

/ {
	model = "Hitex LPC4350 Evaluation Board";
	compatible = "hitex,lpc4350-eval-board", "nxp,lpc4350";

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

	chosen {
		stdout-path = &uart0;
	};

	memory {
		device_type = "memory";
		reg = <0x28000000 0x800000>; /* 8 MB */
	};

	pca_buttons {
		compatible = "gpio-keys-polled";
		#address-cells = <1>;
		#size-cells = <0>;
		poll-interval = <100>;
		autorepeat;

		button@0 {
			label = "joy:right";
			linux,code = <KEY_RIGHT>;
			gpios = <&pca_gpio 8 GPIO_ACTIVE_LOW>;
		};

		button@1 {
			label = "joy:up";
			linux,code = <KEY_UP>;
			gpios = <&pca_gpio 9 GPIO_ACTIVE_LOW>;
		};


		button@2 {
			label = "joy:enter";
			linux,code = <KEY_ENTER>;
			gpios = <&pca_gpio 10 GPIO_ACTIVE_LOW>;
		};

		button@3 {
			label = "joy:left";
			linux,code = <KEY_LEFT>;
			gpios = <&pca_gpio 11 GPIO_ACTIVE_LOW>;
		};

		button@4 {
			label = "joy:down";
			linux,code = <KEY_DOWN>;
			gpios = <&pca_gpio 12 GPIO_ACTIVE_LOW>;
		};

		button@5 {
			label = "user:sw3";
			linux,code = <KEY_F1>;
			gpios = <&pca_gpio 13 GPIO_ACTIVE_LOW>;
		};

		button@6 {
			label = "user:sw4";
			linux,code = <KEY_F2>;
			gpios = <&pca_gpio 14 GPIO_ACTIVE_LOW>;
		};

		button@7 {
			label = "user:sw5";
			linux,code = <KEY_F3>;
			gpios = <&pca_gpio 15 GPIO_ACTIVE_LOW>;
		};
	};

	pca_leds {
		compatible = "gpio-leds";

		led0 {
			label = "ext:led0";
			gpios = <&pca_gpio 0 GPIO_ACTIVE_LOW>;
			linux,default-trigger = "heartbeat";
		};

		led1 {
			label = "ext:led1";
			gpios = <&pca_gpio 1 GPIO_ACTIVE_LOW>;
		};

		led2 {
			label = "ext:led2";
			gpios = <&pca_gpio 2 GPIO_ACTIVE_LOW>;
		};

		led3 {
			label = "ext:led3";
			gpios = <&pca_gpio 3 GPIO_ACTIVE_LOW>;
		};
	};
};

&pinctrl {
	emc_pins: emc-pins {
		emc_addr0_23_cfg {
			pins =	"p2_9",  "p2_10", "p2_11", "p2_12",
				"p2_13", "p1_0",  "p1_1",  "p1_2",
				"p2_8",  "p2_7",  "p2_6",  "p2_2",
				"p2_1",  "p2_0",  "p6_8",  "p6_7",
				"pd_16", "pd_15", "pe_0",  "pe_1",
				"pe_2",  "pe_3",  "pe_4",  "pa_4";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_data0_15_cfg {
			pins =	"p1_7",  "p1_8",  "p1_9",  "p1_10",
				"p1_11", "p1_12", "p1_13", "p1_14",
				"p5_4",  "p5_5",  "p5_6",  "p5_7",
				"p5_0",  "p5_1",  "p5_2",  "p5_3";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_we_oe_cfg {
			pins = "p1_6", "p1_3";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_bls0_3_cfg {
			pins = "p1_4", "p6_6", "pd_13", "pd_10";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_cs0_cs2_cfg {
			pins = "p1_5", "pd_12";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_sdram_dqm0_3_cfg {
			pins = "p6_12", "p6_10", "pd_0", "pe_13";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_sdram_ras_cas_cfg {
			pins = "p6_5", "p6_4";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_sdram_dycs0_cfg {
			pins = "p6_9";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_sdram_cke_cfg {
			pins = "p6_11";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		emc_sdram_clock_cfg {
			pins = "clk0", "clk1", "clk2", "clk3";
			function = "emc";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};
	};

	enet_mii_pins: enet-mii-pins {
		enet_mii_rxd0_3_cfg {
			pins = "p1_15", "p0_0", "p9_3", "p9_2";
			function = "enet";
			bias-disable;
			input-enable;
		};

		enet_mii_txd0_3_cfg {
			pins = "p1_18", "p1_20", "p9_4", "p9_5";
			function = "enet";
			bias-disable;
		};

		enet_mii_crs_col_cfg {
			pins = "p9_0", "p9_6";
			function = "enet";
			bias-disable;
			input-enable;
		};

		enet_mii_rx_clk_dv_er_cfg {
			pins = "pc_0", "p1_16", "p9_1";
			function = "enet";
			bias-disable;
			input-enable;
		};

		enet_mii_tx_clk_en_cfg {
			pins = "p1_19", "p0_1";
			function = "enet";
			bias-disable;
			input-enable;
		};

		enet_mdio_cfg {
			pins = "p1_17";
			function = "enet";
			bias-disable;
			input-enable;
		};

		enet_mdc_cfg {
			pins = "pc_1";
			function = "enet";
			bias-disable;
		};
	};

	i2c0_pins: i2c0-pins {
		i2c0_pins_cfg {
			pins = "i2c0_scl", "i2c0_sda";
			function = "i2c0";
			input-enable;
		};
	};

	spifi_pins: spifi-pins {
		spifi_clk_cfg {
			pins = "p3_3";
			function = "spifi";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		spifi_mosi_miso_sio2_3_cfg {
			pins = "p3_7", "p3_6", "p3_5", "p3_4";
			function = "spifi";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};

		spifi_cs_cfg {
			pins = "p3_8";
			function = "spifi";
			slew-rate = <1>;
			bias-disable;
			input-enable;
			input-schmitt-disable;
		};
	};

	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;
		};
	};
};

&emc {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&emc_pins>;

	cs0 {
		#address-cells = <2>;
		#size-cells = <1>;
		ranges;

		mpmc,cs = <0>;
		mpmc,memory-width = <16>;
		mpmc,byte-lane-low;
		mpmc,write-enable-delay = <0>;
		mpmc,output-enable-delay = <0>;
		mpmc,read-access-delay = <70>;
		mpmc,page-mode-read-delay = <70>;

		flash@0,0 {
			compatible = "sst,sst39vf320", "cfi-flash";
			reg = <0 0 0x400000>;
			bank-width = <2>;
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				label = "bootloader";
				reg = <0x000000 0x040000>; /* 256 KiB */
			};

			partition@1 {
				label = "kernel";
				reg = <0x040000 0x2C0000>; /* 2.75 MiB */
			};

			partition@2 {
				label = "rootfs";
				reg = <0x300000 0x100000>; /* 1 MiB */
			};
		};
	};

	cs2 {
		#address-cells = <2>;
		#size-cells = <1>;
		ranges;

		mpmc,cs = <2>;
		mpmc,memory-width = <16>;
		mpmc,byte-lane-low;
		mpmc,write-enable-delay = <0>;
		mpmc,output-enable-delay = <30>;
		mpmc,read-access-delay = <90>;
		mpmc,page-mode-read-delay = <55>;
		mpmc,write-access-delay = <55>;
		mpmc,turn-round-delay = <55>;

		ext_sram: sram@2,0 {
			compatible = "mmio-sram";
			reg = <2 0 0x80000>; /* 512 KiB SRAM on IS62WV25616 */
		};
	};
};

&enet_tx_clk {
	clock-frequency = <25000000>;
};

&i2c0 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&i2c0_pins>;
	clock-frequency = <400000>;

	/* NXP SE97BTP with temperature sensor + eeprom */
	sensor@18 {
		compatible = "nxp,jc42";
		reg = <0x18>;
	};

	eeprom@50 {
		compatible = "nxp,24c02";
		reg = <0x50>;
	};

	pca_gpio: gpio@24 {
		compatible = "nxp,pca9673";
		reg = <0x24>;
		gpio-controller;
		#gpio-cells = <2>;
	};
};

&mac {
	status = "okay";
	phy-mode = "mii";
	pinctrl-names = "default";
	pinctrl-0 = <&enet_mii_pins>;
};

&spifi {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&spifi_pins>;

	flash@0 {
		compatible = "jedec,spi-nor";
		spi-rx-bus-width = <4>;
		#address-cells = <1>;
		#size-cells = <1>;

		partition@0 {
			label = "bootloader";
			reg = <0x000000 0x040000>; /* 256 KiB */
		};

		partition@1 {
			label = "kernel";
			reg = <0x040000 0x2c0000>; /* 2.75 MiB */
		};

		partition@2 {
			label = "rootfs";
			reg = <0x300000 0x500000>; /* 5 MiB */
		};
	};
};

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