0001 // SPDX-License-Identifier: ISC
0002 /*
0003 * Device Tree file for the Freecom FSG-3 router.
0004 * This machine is based on IXP425.
0005 * This device tree is inspired by the board file by Rod Whitby.
0006 */
0007
0008 /dts-v1/;
0009
0010 #include "intel-ixp42x.dtsi"
0011 #include <dt-bindings/input/input.h>
0012
0013 / {
0014 model = "Freecom FSG-3";
0015 compatible = "freecom,fsg-3", "intel,ixp42x";
0016 #address-cells = <1>;
0017 #size-cells = <1>;
0018
0019 memory@0 {
0020 /* 64 MB memory */
0021 device_type = "memory";
0022 reg = <0x00000000 0x4000000>;
0023 };
0024
0025 chosen {
0026 /* Boot from the first partition on the hard drive */
0027 bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootfstype=ext4 rootwait";
0028 stdout-path = "uart0:115200n8";
0029 };
0030
0031 aliases {
0032 serial0 = &uart0;
0033 };
0034
0035 gpio_keys {
0036 compatible = "gpio-keys";
0037
0038 button-sync {
0039 wakeup-source;
0040 /* Closest approximation of what the key should do */
0041 linux,code = <KEY_CONNECT>;
0042 label = "sync";
0043 gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
0044 };
0045 button-reset {
0046 wakeup-source;
0047 linux,code = <KEY_ESC>;
0048 label = "reset";
0049 gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
0050 };
0051 button-usb {
0052 wakeup-source;
0053 /* Unplug USB, closest approximation of what the key should do */
0054 linux,code = <KEY_EJECTCD>;
0055 label = "usb";
0056 gpios = <&gpio0 10 GPIO_ACTIVE_LOW>;
0057 };
0058 };
0059
0060 i2c {
0061 compatible = "i2c-gpio";
0062 sda-gpios = <&gpio0 12 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
0063 scl-gpios = <&gpio0 13 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
0064 #address-cells = <1>;
0065 #size-cells = <0>;
0066
0067 hwmon@28 {
0068 /*
0069 * Temperature sensor and fan control chip.
0070 *
0071 * TODO: create a proper device tree binding for
0072 * the sensor and temperature zone and create a
0073 * zone with fan control.
0074 */
0075 compatible = "winbond,w83781d";
0076 reg = <0x28>;
0077 };
0078 rtc@6f {
0079 compatible = "isil,isl1208";
0080 reg = <0x6f>;
0081 };
0082 };
0083
0084 soc {
0085 bus@c4000000 {
0086 flash@0,0 {
0087 compatible = "intel,ixp4xx-flash", "cfi-flash";
0088 bank-width = <2>;
0089 /* Enable writes on the expansion bus */
0090 intel,ixp4xx-eb-write-enable = <1>;
0091 /* 4 MB of Flash mapped in at CS0 */
0092 reg = <0 0x00000000 0x400000>;
0093
0094 partitions {
0095 compatible = "redboot-fis";
0096 /* Eraseblock at 0x3e0000 */
0097 fis-index-block = <0x1f>;
0098 };
0099 };
0100
0101 /* Small syscon with some LEDs at CS2 */
0102 syscon@2,0 {
0103 compatible = "freecom,fsg-cs2-system-controller", "syscon";
0104 reg = <2 0x0 0x200>;
0105 reg-io-width = <2>;
0106 #address-cells = <1>;
0107 #size-cells = <1>;
0108 ranges = <2 0x0 0x0 0x200>;
0109
0110 led@0,0 {
0111 compatible = "register-bit-led";
0112 reg = <0x00 0x02>;
0113 mask = <0x01>;
0114 label = "fsg:blue:wlan";
0115 linux,default-trigger = "wlan";
0116 default-state = "on";
0117 };
0118 led@0,1 {
0119 compatible = "register-bit-led";
0120 reg = <0x00 0x02>;
0121 mask = <0x02>;
0122 label = "fsg:blue:wan";
0123 linux,default-trigger = "";
0124 default-state = "on";
0125 };
0126 led@0,2 {
0127 compatible = "register-bit-led";
0128 reg = <0x00 0x02>;
0129 mask = <0x04>;
0130 label = "fsg:blue:sata";
0131 linux,default-trigger = "";
0132 default-state = "on";
0133 };
0134 led@0,3 {
0135 compatible = "register-bit-led";
0136 reg = <0x00 0x02>;
0137 mask = <0x04>;
0138 label = "fsg:blue:usb";
0139 linux,default-trigger = "";
0140 default-state = "on";
0141 };
0142 led@0,4 {
0143 compatible = "register-bit-led";
0144 reg = <0x00 0x02>;
0145 mask = <0x08>;
0146 label = "fsg:blue:sync";
0147 linux,default-trigger = "";
0148 default-state = "on";
0149 };
0150 led@0,5 {
0151 compatible = "register-bit-led";
0152 reg = <0x00 0x02>;
0153 mask = <0x10>;
0154 label = "fsg:blue:ring";
0155 linux,default-trigger = "";
0156 default-state = "on";
0157 };
0158 };
0159 };
0160
0161 pci@c0000000 {
0162 status = "ok";
0163
0164 /*
0165 * Written based on the FSG-3 PCI boardfile.
0166 * We have slots 12, 13 & 14 (IDSEL) with one IRQ each.
0167 */
0168 #interrupt-cells = <1>;
0169 interrupt-map-mask = <0xf800 0 0 7>;
0170 interrupt-map =
0171 /* IDSEL 12 */
0172 <0x6000 0 0 1 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 12 is irq 5 */
0173 <0x6000 0 0 2 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 12 is irq 5 */
0174 <0x6000 0 0 3 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 12 is irq 5 */
0175 <0x6000 0 0 4 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 12 is irq 5 */
0176 /* IDSEL 13 */
0177 <0x6800 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 7 */
0178 <0x6800 0 0 2 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 7 */
0179 <0x6800 0 0 3 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 13 is irq 7 */
0180 <0x6800 0 0 4 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 13 is irq 7 */
0181 /* IDSEL 14 */
0182 <0x7000 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 6 */
0183 <0x7000 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 6 */
0184 <0x7000 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 14 is irq 6 */
0185 <0x7000 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 14 is irq 6 */
0186 };
0187
0188 /* EthB */
0189 ethernet@c8009000 {
0190 status = "ok";
0191 queue-rx = <&qmgr 3>;
0192 queue-txready = <&qmgr 20>;
0193 phy-mode = "rgmii";
0194 phy-handle = <&phy5>;
0195
0196 mdio {
0197 #address-cells = <1>;
0198 #size-cells = <0>;
0199
0200 phy4: ethernet-phy@4 {
0201 reg = <4>;
0202 };
0203
0204 phy5: ethernet-phy@5 {
0205 reg = <5>;
0206 };
0207 };
0208 };
0209
0210 /* EthC */
0211 ethernet@c800a000 {
0212 status = "ok";
0213 queue-rx = <&qmgr 4>;
0214 queue-txready = <&qmgr 21>;
0215 phy-mode = "rgmii";
0216 phy-handle = <&phy4>;
0217 };
0218 };
0219 };
