1// SPDX-License-Identifier: ISC 2/* 3 * Device Tree file for the Freecom FSG-3 router. 4 * This machine is based on IXP425. 5 * This device tree is inspired by the board file by Rod Whitby. 6 */ 7 8/dts-v1/; 9 10#include "intel-ixp42x.dtsi" 11#include <dt-bindings/input/input.h> 12 13/ { 14 model = "Freecom FSG-3"; 15 compatible = "freecom,fsg-3", "intel,ixp42x"; 16 #address-cells = <1>; 17 #size-cells = <1>; 18 19 memory@0 { 20 /* 64 MB memory */ 21 device_type = "memory"; 22 reg = <0x00000000 0x4000000>; 23 }; 24 25 chosen { 26 /* Boot from the first partition on the hard drive */ 27 bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootfstype=ext4 rootwait"; 28 stdout-path = "uart0:115200n8"; 29 }; 30 31 aliases { 32 serial0 = &uart0; 33 }; 34 35 gpio_keys { 36 compatible = "gpio-keys"; 37 38 button-sync { 39 wakeup-source; 40 /* Closest approximation of what the key should do */ 41 linux,code = <KEY_CONNECT>; 42 label = "sync"; 43 gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>; 44 }; 45 button-reset { 46 wakeup-source; 47 linux,code = <KEY_ESC>; 48 label = "reset"; 49 gpios = <&gpio0 9 GPIO_ACTIVE_LOW>; 50 }; 51 button-usb { 52 wakeup-source; 53 /* Unplug USB, closest approximation of what the key should do */ 54 linux,code = <KEY_EJECTCD>; 55 label = "usb"; 56 gpios = <&gpio0 10 GPIO_ACTIVE_LOW>; 57 }; 58 }; 59 60 i2c { 61 compatible = "i2c-gpio"; 62 sda-gpios = <&gpio0 12 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 63 scl-gpios = <&gpio0 13 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 64 #address-cells = <1>; 65 #size-cells = <0>; 66 67 hwmon@28 { 68 /* 69 * Temperature sensor and fan control chip. 70 * 71 * TODO: create a proper device tree binding for 72 * the sensor and temperature zone and create a 73 * zone with fan control. 74 */ 75 compatible = "winbond,w83781d"; 76 reg = <0x28>; 77 }; 78 rtc@6f { 79 compatible = "isil,isl1208"; 80 reg = <0x6f>; 81 }; 82 }; 83 84 soc { 85 bus@c4000000 { 86 flash@0,0 { 87 compatible = "intel,ixp4xx-flash", "cfi-flash"; 88 bank-width = <2>; 89 /* Enable writes on the expansion bus */ 90 intel,ixp4xx-eb-write-enable = <1>; 91 /* 4 MB of Flash mapped in at CS0 */ 92 reg = <0 0x00000000 0x400000>; 93 94 partitions { 95 compatible = "redboot-fis"; 96 /* Eraseblock at 0x3e0000 */ 97 fis-index-block = <0x1f>; 98 }; 99 }; 100 }; 101 102 pci@c0000000 { 103 status = "ok"; 104 105 /* 106 * Written based on the FSG-3 PCI boardfile. 107 * We have slots 12, 13 & 14 (IDSEL) with one IRQ each. 108 */ 109 interrupt-map = 110 /* IDSEL 12 */ 111 <0x6000 0 0 1 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 12 is irq 5 */ 112 <0x6000 0 0 2 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 12 is irq 5 */ 113 <0x6000 0 0 3 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 12 is irq 5 */ 114 <0x6000 0 0 4 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 12 is irq 5 */ 115 /* IDSEL 13 */ 116 <0x6800 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 7 */ 117 <0x6800 0 0 2 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 7 */ 118 <0x6800 0 0 3 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 13 is irq 7 */ 119 <0x6800 0 0 4 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 13 is irq 7 */ 120 /* IDSEL 14 */ 121 <0x7000 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 6 */ 122 <0x7000 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 6 */ 123 <0x7000 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 14 is irq 6 */ 124 <0x7000 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 14 is irq 6 */ 125 }; 126 127 /* EthB */ 128 ethernet@c8009000 { 129 status = "ok"; 130 queue-rx = <&qmgr 3>; 131 queue-txready = <&qmgr 20>; 132 phy-mode = "rgmii"; 133 phy-handle = <&phy5>; 134 135 mdio { 136 #address-cells = <1>; 137 #size-cells = <0>; 138 139 phy4: ethernet-phy@4 { 140 reg = <4>; 141 }; 142 143 phy5: ethernet-phy@5 { 144 reg = <5>; 145 }; 146 }; 147 }; 148 149 /* EthC */ 150 ethernet@c800a000 { 151 status = "ok"; 152 queue-rx = <&qmgr 4>; 153 queue-txready = <&qmgr 21>; 154 phy-mode = "rgmii"; 155 phy-handle = <&phy4>; 156 }; 157 }; 158}; 159