linuxdebug/arch/arm/boot/dts/intel-ixp42x-linksys-nslu2.dts

// SPDX-License-Identifier: ISC
/*
 * Device Tree file for Linksys NSLU2
 */

/dts-v1/;

#include "intel-ixp42x.dtsi"
#include <dt-bindings/input/input.h>

/ {
	model = "Linksys NSLU2 (Network Storage Link for USB 2.0 Disk Drives)";
	compatible = "linksys,nslu2", "intel,ixp42x";
	#address-cells = <1>;
	#size-cells = <1>;

	memory@0 {
		/* 32 MB SDRAM */
		device_type = "memory";
		reg = <0x00000000 0x2000000>;
	};

	chosen {
		bootargs = "console=ttyS0,115200n8 root=/dev/mtdblock2 rw rootfstype=squashfs,jffs2 rootwait";
		stdout-path = "uart0:115200n8";
	};

	aliases {
		serial0 = &uart0;
	};

	leds {
		compatible = "gpio-leds";
		led-status {
			label = "nslu2:red:status";
			gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
			default-state = "on";
			linux,default-trigger = "heartbeat";
		};
		led-ready {
			label = "nslu2:green:ready";
			gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
			default-state = "on";
		};
		led-disk-1 {
			label = "nslu2:green:disk-1";
			gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;
			default-state = "off";
		};
		led-disk-2 {
			label = "nslu2:green:disk-2";
			gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
			default-state = "off";
		};
	};

	gpio_keys {
		compatible = "gpio-keys";

		button-power {
			wakeup-source;
			linux,code = <KEY_POWER>;
			label = "power";
			gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
		};
		button-reset {
			wakeup-source;
			linux,code = <KEY_ESC>;
			label = "reset";
			gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
		};
	};

	i2c {
		compatible = "i2c-gpio";
		sda-gpios = <&gpio0 7 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
		scl-gpios = <&gpio0 6 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
		#address-cells = <1>;
		#size-cells = <0>;

		rtc@6f {
			compatible = "xicor,x1205";
			reg = <0x6f>;
		};
	};

	gpio-poweroff {
		compatible = "gpio-poweroff";
		gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
		timeout-ms = <5000>;
	};

	gpio-beeper {
		compatible = "gpio-beeper";
		gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
	};

	soc {
		bus@c4000000 {
			/* The first 16MB region at CS0 on the expansion bus */
			flash@0,0 {
				compatible = "intel,ixp4xx-flash", "cfi-flash";
				bank-width = <2>;
				/*
				 * 8 MB of Flash in 0x20000 byte blocks
				 * mapped in at CS0.
				 */
				reg = <0 0x00000000 0x800000>;

				partitions {
					compatible = "redboot-fis";
					/* Eraseblock at 0x7e0000 */
					fis-index-block = <0x3f>;
				};
			};
		};

		pci@c0000000 {
			status = "ok";

			/*
			 * Taken from NSLU2 PCI boardfile, INT A, B, C swizzled D constant
			 * We have slots (IDSEL) 1, 2 and 3.
			 */
			#interrupt-cells = <1>;
			interrupt-map-mask = <0xf800 0 0 7>;
			interrupt-map =
			/* IDSEL 1 */
			<0x0800 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 11 */
			<0x0800 0 0 2 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 10 */
			<0x0800 0 0 3 &gpio0 9  IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 9 */
			<0x0800 0 0 4 &gpio0 8  IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 8 */
			/* IDSEL 2 */
			<0x1000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 10 */
			<0x1000 0 0 2 &gpio0 9  IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 9 */
			<0x1000 0 0 3 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 11 */
			<0x1000 0 0 4 &gpio0 8  IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 2 is irq 8 */
			/* IDSEL 3 */
			<0x1800 0 0 1 &gpio0 9  IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 9 */
			<0x1800 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 11 */
			<0x1800 0 0 3 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 10 */
			<0x1800 0 0 4 &gpio0 8  IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 3 is irq 8 */
		};

		ethernet@c8009000 {
			status = "ok";
			queue-rx = <&qmgr 3>;
			queue-txready = <&qmgr 20>;
			phy-mode = "rgmii";
			phy-handle = <&phy1>;

			mdio {
				#address-cells = <1>;
				#size-cells = <0>;

				phy1: ethernet-phy@1 {
					reg = <1>;
				};
			};
		};
	};
};