tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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", "gemtek,gtwx5715", "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 = "ok"
121
122 /*
123 * We have up to 2 slots (IDSEL) with 2 swizzled IRQs.
124 * Derived from the GTWX5715 PCI boardfile.
125 */
126 interrupt-map =
127 /* IDSEL 0 */
128 <0x0000 0 0 1 &gpio0 10 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 0 is irq 10 */
129 <0x0000 0 0 2 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT B on slot 0 is irq 11 */
130 /* IDSEL 1 */
131 <0x0800 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 11 */
132 <0x0800 0 0 2 &gpio0 10 IRQ_TYPE_LEVEL_LOW>; /* INT B on slot 1 is irq 10 */
133 };
134
135 /*
136 * EthB - connected to the KS8995 switch ports 1-4
137 * FIXME: the boardfile defines .phy_mask = 0x1e for this port to enable output to
138 * all four switch ports, also using an out of tree multiphy patch.
139 * Do we need a new binding and property for this?
140 */
141 ethernet@c8009000 {
142 status = "ok"
143 queue-rx = <&qmgr 3>;
144 queue-txready = <&qmgr 20>;
145 phy-mode = "rgmii";
146 phy-handle = <&phy4>;
147
148 mdio {
149 #address-cells = <1>;
150 #size-cells = <0>;
151
152 /* Should be ports 1-4 on the KS8995 switch */
153 phy4: ethernet-phy@4 {
154 reg = <4>;
155 };
156
157 /* Should be port 5 on the KS8995 switch */
158 phy5: ethernet-phy@5 {
159 reg = <5>;
160 };
161 };
162 };
163
164 /* EthC - connected to KS8995 switch port 5 */
165 ethernet@c800a000 {
166 status = "ok"
167 queue-rx = <&qmgr 4>;
168 queue-txready = <&qmgr 21>;
169 phy-mode = "rgmii";
170 phy-handle = <&phy5>;
171 };
172 };
173};