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_RESTART>;
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 /* Small syscon with some LEDs at CS2 */
102 syscon@2,0 {
103 compatible = "freecom,fsg-cs2-system-controller", "syscon";
104 reg = <2 0x0 0x200>;
105 reg-io-width = <2>;
106 #address-cells = <1>;
107 #size-cells = <1>;
108 ranges = <2 0x0 0x0 0x200>;
109
110 led@0,0 {
111 compatible = "register-bit-led";
112 reg = <0x00 0x02>;
113 mask = <0x01>;
114 label = "fsg:blue:wlan";
115 linux,default-trigger = "wlan";
116 default-state = "on";
117 };
118 led@0,1 {
119 compatible = "register-bit-led";
120 reg = <0x00 0x02>;
121 mask = <0x02>;
122 label = "fsg:blue:wan";
123 linux,default-trigger = "";
124 default-state = "on";
125 };
126 led@0,2 {
127 compatible = "register-bit-led";
128 reg = <0x00 0x02>;
129 mask = <0x04>;
130 label = "fsg:blue:sata";
131 linux,default-trigger = "";
132 default-state = "on";
133 };
134 led@0,3 {
135 compatible = "register-bit-led";
136 reg = <0x00 0x02>;
137 mask = <0x04>;
138 label = "fsg:blue:usb";
139 linux,default-trigger = "";
140 default-state = "on";
141 };
142 led@0,4 {
143 compatible = "register-bit-led";
144 reg = <0x00 0x02>;
145 mask = <0x08>;
146 label = "fsg:blue:sync";
147 linux,default-trigger = "";
148 default-state = "on";
149 };
150 led@0,5 {
151 compatible = "register-bit-led";
152 reg = <0x00 0x02>;
153 mask = <0x10>;
154 label = "fsg:blue:ring";
155 linux,default-trigger = "";
156 default-state = "on";
157 };
158 };
159 };
160
161 pci@c0000000 {
162 status = "okay";
163
164 /*
165 * Written based on the FSG-3 PCI boardfile.
166 * We have slots 12, 13 & 14 (IDSEL) with one IRQ each.
167 */
168 #interrupt-cells = <1>;
169 interrupt-map-mask = <0xf800 0 0 7>;
170 interrupt-map =
171 /* IDSEL 12 */
172 <0x6000 0 0 1 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 12 is irq 5 */
173 <0x6000 0 0 2 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 12 is irq 5 */
174 <0x6000 0 0 3 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 12 is irq 5 */
175 <0x6000 0 0 4 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 12 is irq 5 */
176 /* IDSEL 13 */
177 <0x6800 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 7 */
178 <0x6800 0 0 2 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 7 */
179 <0x6800 0 0 3 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 13 is irq 7 */
180 <0x6800 0 0 4 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 13 is irq 7 */
181 /* IDSEL 14 */
182 <0x7000 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 6 */
183 <0x7000 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 6 */
184 <0x7000 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 14 is irq 6 */
185 <0x7000 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 14 is irq 6 */
186 };
187
188 /* EthB */
189 ethernet@c8009000 {
190 status = "okay";
191 queue-rx = <&qmgr 3>;
192 queue-txready = <&qmgr 20>;
193 phy-mode = "rgmii";
194 phy-handle = <&phy5>;
195
196 mdio {
197 #address-cells = <1>;
198 #size-cells = <0>;
199
200 phy4: ethernet-phy@4 {
201 reg = <4>;
202 };
203
204 phy5: ethernet-phy@5 {
205 reg = <5>;
206 };
207 };
208 };
209
210 /* EthC */
211 ethernet@c800a000 {
212 status = "okay";
213 queue-rx = <&qmgr 4>;
214 queue-txready = <&qmgr 21>;
215 phy-mode = "rgmii";
216 phy-handle = <&phy4>;
217 };
218 };
219 };
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