kernel/arch/arm/boot/dts/at91sam9g20ek_common.dtsi


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14/*
 * at91sam9g20ek_common.dtsi - Device Tree file for Atmel at91sam9g20ek board
 *
 * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
 *
 * Licensed under GPLv2.
 */
#include "at91sam9g20.dtsi"

/ {

	chosen {
		bootargs = "mem=64M root=/dev/mtdblock5 rw rootfstype=ubifs";
		stdout-path = "serial0:115200n8";
	};

	memory {
		reg = <0x20000000 0x4000000>;
	};

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

		main_xtal {
			clock-frequency = <18432000>;
		};
	};

	ahb {
		apb {
			pinctrl@fffff400 {
				board {
					pinctrl_pck0_as_mck: pck0_as_mck {
						atmel,pins =
							<AT91_PIOC 1 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC1 periph B */
					};

				};

				mmc0_slot1 {
					pinctrl_board_mmc0_slot1: mmc0_slot1-board {
						atmel,pins =
							<AT91_PIOC 9 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;	/* PC9 gpio CD pin pull up and deglitch */
					};
				};
			};

			dbgu: serial@fffff200 {
				status = "okay";
			};

			usart0: serial@fffb0000 {
				pinctrl-0 =
					<&pinctrl_usart0
					 &pinctrl_usart0_rts
					 &pinctrl_usart0_cts
					 &pinctrl_usart0_dtr_dsr
					 &pinctrl_usart0_dcd
					 &pinctrl_usart0_ri>;
				status = "okay";
			};

			usart1: serial@fffb4000 {
				status = "okay";
			};

			macb0: ethernet@fffc4000 {
				phy-mode = "rmii";
				status = "okay";
			};

			usb1: gadget@fffa4000 {
				atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
				status = "okay";
			};

			mmc0: mmc@fffa8000 {
				pinctrl-0 = <
					&pinctrl_board_mmc0_slot1
					&pinctrl_mmc0_clk
					&pinctrl_mmc0_slot1_cmd_dat0
					&pinctrl_mmc0_slot1_dat1_3>;
				status = "okay";
				slot@1 {
					reg = <1>;
					bus-width = <4>;
					cd-gpios = <&pioC 9 GPIO_ACTIVE_HIGH>;
				};
			};

			ssc0: ssc@fffbc000 {
				status = "okay";
				pinctrl-0 = <&pinctrl_ssc0_tx>;
			};

			spi0: spi@fffc8000 {
				cs-gpios = <0>, <&pioC 11 0>, <0>, <0>;
				mtd_dataflash@0 {
					compatible = "atmel,at45", "atmel,dataflash";
					spi-max-frequency = <50000000>;
					reg = <1>;
				};
			};

			shdwc@fffffd10 {
				atmel,wakeup-counter = <10>;
				atmel,wakeup-rtt-timer;
			};

			rtc@fffffd20 {
				atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
				status = "okay";
			};

			watchdog@fffffd40 {
				status = "okay";
			};

			gpbr: syscon@fffffd50 {
				status = "okay";
			};
		};

		nand0: nand@40000000 {
			nand-bus-width = <8>;
			nand-ecc-mode = "soft";
			nand-on-flash-bbt;
			status = "okay";

			at91bootstrap@0 {
				label = "at91bootstrap";
				reg = <0x0 0x20000>;
			};

			barebox@20000 {
				label = "barebox";
				reg = <0x20000 0x40000>;
			};

			bareboxenv@60000 {
				label = "bareboxenv";
				reg = <0x60000 0x20000>;
			};

			bareboxenv2@80000 {
				label = "bareboxenv2";
				reg = <0x80000 0x20000>;
			};

			oftree@80000 {
				label = "oftree";
				reg = <0xa0000 0x20000>;
			};

			kernel@a0000 {
				label = "kernel";
				reg = <0xc0000 0x400000>;
			};

			rootfs@4a0000 {
				label = "rootfs";
				reg = <0x4c0000 0x7800000>;
			};

			data@7ca0000 {
				label = "data";
				reg = <0x7cc0000 0x8340000>;
			};
		};

		usb0: ohci@00500000 {
			num-ports = <2>;
			status = "okay";
		};
	};

	i2c@0 {
		status = "okay";

		24c512@50 {
			compatible = "24c512";
			reg = <0x50>;
		};

		wm8731: wm8731@1b {
			compatible = "wm8731";
			reg = <0x1b>;
		};
	};

	gpio_keys {
		compatible = "gpio-keys";

		btn3 {
			label = "Button 3";
			gpios = <&pioA 30 GPIO_ACTIVE_LOW>;
			linux,code = <0x103>;
			wakeup-source;
		};

		btn4 {
			label = "Button 4";
			gpios = <&pioA 31 GPIO_ACTIVE_LOW>;
			linux,code = <0x104>;
			wakeup-source;
		};
	};

	sound {
		compatible = "atmel,at91sam9g20ek-wm8731-audio";
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_pck0_as_mck>;

		atmel,model = "wm8731 @ AT91SAMG20EK";

		atmel,audio-routing =
			"Ext Spk", "LHPOUT",
			"Int Mic", "MICIN";

		atmel,ssc-controller = <&ssc0>;
		atmel,audio-codec = <&wm8731>;
	};
};