1 // SPDX-License-Identifier: ISC
2 /*
3 * Device Tree file for the Linksys WRV54G router
4 * Also known as Gemtek GTWX5715
5 * Based on a board file by George T. Joseph and other patches.
6 * This machine is based on IXP425.
7 */
8
9 /dts-v1/;
10
11 #include "intel-ixp42x.dtsi"
12 #include <dt-bindings/input/input.h>
13
14 / {
15 model = "Linksys WRV54G / Gemtek GTWX5715";
16 compatible = "linksys,wrv54g", "intel,ixp42x";
17 #address-cells = <1>;
18 #size-cells = <1>;
19
20 memory@0 {
21 /* 32 MB memory */
22 device_type = "memory";
23 reg = <0x00000000 0x2000000>;
24 };
25
26 chosen {
27 bootargs = "console=ttyS0,115200n8";
28 stdout-path = "uart1:115200n8";
29 };
30
31 aliases {
32 /* UART2 is the primary console */
33 serial0 = &uart1;
34 serial1 = &uart0;
35 };
36
37 /* There is an unpopulated LED slot (3) connected to GPIO 8 */
38 leds {
39 compatible = "gpio-leds";
40 led-power {
41 label = "wrv54g:yellow:power";
42 gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
43 default-state = "on";
44 linux,default-trigger = "heartbeat";
45 };
46 led-wireless {
47 label = "wrv54g:yellow:wireless";
48 gpios = <&gpio0 9 GPIO_ACTIVE_LOW>;
49 default-state = "on";
50 };
51 led-internet {
52 label = "wrv54g:yellow:internet";
53 gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
54 default-state = "on";
55 };
56 led-dmz {
57 label = "wrv54g:green:dmz";
58 gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
59 default-state = "on";
60 };
61 };
62
63 /* This set-up comes from an OpenWrt patch */
64 spi {
65 compatible = "spi-gpio";
66 #address-cells = <1>;
67 #size-cells = <0>;
68
69 sck-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
70 miso-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
71 mosi-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
72 cs-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
73 num-chipselects = <1>;
74
75 switch@0 {
76 compatible = "micrel,ks8995";
77 reg = <0>;
78 spi-max-frequency = <50000000>;
79 };
80 };
81
82 soc {
83 bus@c4000000 {
84 flash@0,0 {
85 compatible = "intel,ixp4xx-flash", "cfi-flash";
86 bank-width = <2>;
87 /* Enable writes on the expansion bus */
88 intel,ixp4xx-eb-write-enable = <1>;
89 /* 8 MB of Flash mapped in at CS0 */
90 reg = <0 0x00000000 0x00800000>;
91
92 partitions {
93 compatible = "fixed-partitions";
94 /*
95 * Partition info from a boot log
96 * CHECKME: not using redboot? FIS index 0x3f @7e00000?
97 */
98 #address-cells = <1>;
99 #size-cells = <1>;
100 partition@0 {
101 label = "boot";
102 reg = <0x0 0x140000>;
103 read-only;
104 };
105 partition@140000 {
106 label = "linux";
107 reg = <0x140000 0x100000>;
108 read-only;
109 };
110 partition@240000 {
111 label = "root";
112 reg = <0x240000 0x480000>;
113 read-write;
114 };
115 };
116 };
117 };
118
119 pci@c0000000 {
120 status = "okay";
121
122 /*
123 * We have up to 2 slots (IDSEL) with 2 swizzled IRQs.
124 * Derived from the GTWX5715 PCI boardfile.
125 */
126 #interrupt-cells = <1>;
127 interrupt-map-mask = <0xf800 0 0 7>;
128 interrupt-map =
129 /* IDSEL 0 */
130 <0x0000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 0 is irq 10 */
131 <0x0000 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 0 is irq 11 */
132 /* IDSEL 1 */
133 <0x0800 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 11 */
134 <0x0800 0 0 2 &gpio0 10 IRQ_TYPE_LEVEL_LOW>; /* INT B on slot 1 is irq 10 */
135 };
136
137 /*
138 * EthB - connected to the KS8995 switch ports 1-4
139 * FIXME: the boardfile defines .phy_mask = 0x1e for this port to enable output to
140 * all four switch ports, also using an out of tree multiphy patch.
141 * Do we need a new binding and property for this?
142 */
143 ethernet@c8009000 {
144 status = "okay";
145 queue-rx = <&qmgr 3>;
146 queue-txready = <&qmgr 20>;
147 phy-mode = "rgmii";
148 phy-handle = <&phy4>;
149
150 mdio {
151 #address-cells = <1>;
152 #size-cells = <0>;
153
154 /* Should be ports 1-4 on the KS8995 switch */
155 phy4: ethernet-phy@4 {
156 reg = <4>;
157 };
158
159 /* Should be port 5 on the KS8995 switch */
160 phy5: ethernet-phy@5 {
161 reg = <5>;
162 };
163 };
164 };
165
166 /* EthC - connected to KS8995 switch port 5 */
167 ethernet@c800a000 {
168 status = "okay";
169 queue-rx = <&qmgr 4>;
170 queue-txready = <&qmgr 21>;
171 phy-mode = "rgmii";
172 phy-handle = <&phy5>;
173 };
174 };
175 };
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