1// SPDX-License-Identifier: ISC
  2/*
  3 * Device Tree file for Linksys NSLU2
  4 */
  5
  6/dts-v1/;
  7
  8#include "intel-ixp42x.dtsi"
  9#include <dt-bindings/input/input.h>
 10
 11/ {
 12	model = "Linksys NSLU2 (Network Storage Link for USB 2.0 Disk Drives)";
 13	compatible = "linksys,nslu2", "intel,ixp42x";
 14	#address-cells = <1>;
 15	#size-cells = <1>;
 16
 17	memory@0 {
 18		/* 32 MB SDRAM */
 19		device_type = "memory";
 20		reg = <0x00000000 0x2000000>;
 21	};
 22
 23	chosen {
 24		bootargs = "console=ttyS0,115200n8 root=/dev/mtdblock2 rw rootfstype=squashfs,jffs2 rootwait";
 25		stdout-path = "uart0:115200n8";
 26	};
 27
 28	aliases {
 29		serial0 = &uart0;
 30	};
 31
 32	leds {
 33		compatible = "gpio-leds";
 34		led-status {
 35			label = "nslu2:red:status";
 36			gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
 37			default-state = "on";
 38			linux,default-trigger = "heartbeat";
 39		};
 40		led-ready {
 41			label = "nslu2:green:ready";
 42			gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
 43			default-state = "on";
 44		};
 45		led-disk-1 {
 46			label = "nslu2:green:disk-1";
 47			gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
 48			default-state = "off";
 49		};
 50		led-disk-2 {
 51			label = "nslu2:green:disk-2";
 52			gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
 53			default-state = "off";
 54		};
 55	};
 56
 57	gpio_keys {
 58		compatible = "gpio-keys";
 59
 60		button-power {
 61			wakeup-source;
 62			linux,code = <KEY_POWER>;
 63			label = "power";
 64			gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
 65		};
 66		button-reset {
 67			wakeup-source;
 68			linux,code = <KEY_ESC>;
 69			label = "reset";
 70			gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
 71		};
 72	};
 73
 74	i2c {
 75		compatible = "i2c-gpio";
 76		sda-gpios = <&gpio0 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
 77		scl-gpios = <&gpio0 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
 78		#address-cells = <1>;
 79		#size-cells = <0>;
 80
 81		rtc@6f {
 82			compatible = "xicor,x1205";
 83			reg = <0x6f>;
 84		};
 85	};
 86
 87	gpio-poweroff {
 88		compatible = "gpio-poweroff";
 89		gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
 90		timeout-ms = <5000>;
 91	};
 92
 93	/* The first 16MB region on the expansion bus */
 94	flash@50000000 {
 95		compatible = "intel,ixp4xx-flash", "cfi-flash";
 96		bank-width = <2>;
 97		/*
 98		 * 8 MB of Flash in 0x20000 byte blocks
 99		 * mapped in at 0x50000000
100		 */
101		reg = <0x50000000 0x800000>;
102
103		partitions {
104			compatible = "redboot-fis";
105			/* Eraseblock at 0x7e0000 */
106			fis-index-block = <0x3f>;
107		};
108	};
109};