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_RESTART>; 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 gpio-beeper { 94 compatible = "gpio-beeper"; 95 gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>; 96 }; 97 98 soc { 99 bus@c4000000 { 100 /* The first 16MB region at CS0 on the expansion bus */ 101 flash@0,0 { 102 compatible = "intel,ixp4xx-flash", "cfi-flash"; 103 bank-width = <2>; 104 /* Enable writes on the expansion bus */ 105 intel,ixp4xx-eb-write-enable = <1>; 106 /* 107 * 8 MB of Flash in 0x20000 byte blocks 108 * mapped in at CS0. 109 */ 110 reg = <0 0x00000000 0x800000>; 111 112 partitions { 113 compatible = "redboot-fis"; 114 /* Eraseblock at 0x7e0000 */ 115 fis-index-block = <0x3f>; 116 }; 117 }; 118 }; 119 120 pci@c0000000 { 121 status = "okay"; 122 123 /* 124 * Taken from NSLU2 PCI boardfile, INT A, B, C swizzled D constant 125 * We have slots (IDSEL) 1, 2 and 3. 126 */ 127 #interrupt-cells = <1>; 128 interrupt-map-mask = <0xf800 0 0 7>; 129 interrupt-map = 130 /* IDSEL 1 */ 131 <0x0800 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 11 */ 132 <0x0800 0 0 2 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 1 is irq 10 */ 133 <0x0800 0 0 3 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 1 is irq 9 */ 134 <0x0800 0 0 4 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 1 is irq 8 */ 135 /* IDSEL 2 */ 136 <0x1000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 2 is irq 10 */ 137 <0x1000 0 0 2 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 2 is irq 9 */ 138 <0x1000 0 0 3 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 2 is irq 11 */ 139 <0x1000 0 0 4 &gpio0 8 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 2 is irq 8 */ 140 /* IDSEL 3 */ 141 <0x1800 0 0 1 &gpio0 9 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 3 is irq 9 */ 142 <0x1800 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 3 is irq 11 */ 143 <0x1800 0 0 3 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 3 is irq 10 */ 144 <0x1800 0 0 4 &gpio0 8 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 3 is irq 8 */ 145 }; 146 147 ethernet@c8009000 { 148 status = "okay"; 149 queue-rx = <&qmgr 3>; 150 queue-txready = <&qmgr 20>; 151 phy-mode = "rgmii"; 152 phy-handle = <&phy1>; 153 154 mdio { 155 #address-cells = <1>; 156 #size-cells = <0>; 157 158 phy1: ethernet-phy@1 { 159 reg = <1>; 160 }; 161 }; 162 }; 163 }; 164}; 165