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-cells = <1>;
110			interrupt-map-mask = <0xf800 0 0 7>;
111			interrupt-map =
112			/* IDSEL 12 */
113			<0x6000 0 0 1 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 12 is irq 5 */
114			<0x6000 0 0 2 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 12 is irq 5 */
115			<0x6000 0 0 3 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 12 is irq 5 */
116			<0x6000 0 0 4 &gpio0 5 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 12 is irq 5 */
117			/* IDSEL 13 */
118			<0x6800 0 0 1 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 13 is irq 7 */
119			<0x6800 0 0 2 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 13 is irq 7 */
120			<0x6800 0 0 3 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 13 is irq 7 */
121			<0x6800 0 0 4 &gpio0 7 IRQ_TYPE_LEVEL_LOW>, /* INT D on slot 13 is irq 7 */
122			/* IDSEL 14 */
123			<0x7000 0 0 1 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 14 is irq 6 */
124			<0x7000 0 0 2 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 14 is irq 6 */
125			<0x7000 0 0 3 &gpio0 6 IRQ_TYPE_LEVEL_LOW>, /* INT C on slot 14 is irq 6 */
126			<0x7000 0 0 4 &gpio0 6 IRQ_TYPE_LEVEL_LOW>; /* INT D on slot 14 is irq 6 */
127		};
128
129		/* EthB */
130		ethernet@c8009000 {
131			status = "ok";
132			queue-rx = <&qmgr 3>;
133			queue-txready = <&qmgr 20>;
134			phy-mode = "rgmii";
135			phy-handle = <&phy5>;
136
137			mdio {
138				#address-cells = <1>;
139				#size-cells = <0>;
140
141				phy4: ethernet-phy@4 {
142					reg = <4>;
143				};
144
145				phy5: ethernet-phy@5 {
146					reg = <5>;
147				};
148			};
149		};
150
151		/* EthC */
152		ethernet@c800a000 {
153			status = "ok";
154			queue-rx = <&qmgr 4>;
155			queue-txready = <&qmgr 21>;
156			phy-mode = "rgmii";
157			phy-handle = <&phy4>;
158		};
159	};
160};
161