1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
2 /*
3 * Broadcom BCM470X / BCM5301X ARM platform code.
4 * DTS for Meraki MR26 / Codename: Venom
5 *
6 * Copyright (C) 2022 Christian Lamparter <chunkeey@gmail.com>
7 */
8
9 /dts-v1/;
10
11 #include "bcm4708.dtsi"
12 #include "bcm5301x-nand-cs0-bch8.dtsi"
13 #include <dt-bindings/leds/common.h>
14
15 / {
16 compatible = "meraki,mr26", "brcm,bcm53015", "brcm,bcm4708";
17 model = "Meraki MR26";
18
19 memory@0 {
20 reg = <0x00000000 0x08000000>;
21 device_type = "memory";
22 };
23
24 leds {
25 compatible = "gpio-leds";
26
27 led-0 {
28 function = LED_FUNCTION_FAULT;
29 color = <LED_COLOR_ID_AMBER>;
30 gpios = <&chipcommon 13 GPIO_ACTIVE_HIGH>;
31 panic-indicator;
32 };
33 led-1 {
34 function = LED_FUNCTION_INDICATOR;
35 color = <LED_COLOR_ID_WHITE>;
36 gpios = <&chipcommon 12 GPIO_ACTIVE_HIGH>;
37 };
38 };
39
40 keys {
41 compatible = "gpio-keys";
42
43 key-restart {
44 label = "Reset";
45 linux,code = <KEY_RESTART>;
46 gpios = <&chipcommon 11 GPIO_ACTIVE_LOW>;
47 };
48 };
49 };
50
51 &uart0 {
52 clock-frequency = <50000000>;
53 /delete-property/ clocks;
54 };
55
56 &uart1 {
57 status = "disabled";
58 };
59
60 &gmac0 {
61 status = "okay";
62 };
63
64 &gmac1 {
65 status = "disabled";
66 };
67 &gmac2 {
68 status = "disabled";
69 };
70 &gmac3 {
71 status = "disabled";
72 };
73
74 &nandcs {
75 partitions {
76 compatible = "fixed-partitions";
77 #address-cells = <0x1>;
78 #size-cells = <0x1>;
79
80 partition@0 {
81 label = "u-boot";
82 reg = <0x0 0x200000>;
83 read-only;
84 };
85
86 partition@200000 {
87 label = "u-boot-env";
88 reg = <0x200000 0x200000>;
89 /* empty */
90 };
91
92 partition@400000 {
93 label = "u-boot-backup";
94 reg = <0x400000 0x200000>;
95 /* empty */
96 };
97
98 partition@600000 {
99 label = "u-boot-env-backup";
100 reg = <0x600000 0x200000>;
101 /* empty */
102 };
103
104 partition@800000 {
105 label = "ubi";
106 reg = <0x800000 0x7780000>;
107 };
108 };
109 };
110
111 &srab {
112 status = "okay";
113
114 ports {
115 port@0 {
116 label = "poe";
117 };
118
119 port@5 {
120 label = "cpu";
121
122 fixed-link {
123 speed = <1000>;
124 full-duplex;
125 };
126 };
127
128 port@7 {
129 status = "disabled";
130 };
131
132 port@8 {
133 status = "disabled";
134 };
135 };
136 };
137
138 &i2c0 {
139 status = "okay";
140
141 pinctrl-names = "default";
142 pinctrl-0 = <&pinmux_i2c>;
143
144 clock-frequency = <100000>;
145
146 ina219@40 {
147 compatible = "ti,ina219"; /* PoE power */
148 reg = <0x40>;
149 shunt-resistor = <60000>; /* = 60 mOhms */
150 };
151
152 eeprom@56 {
153 compatible = "atmel,24c64";
154 reg = <0x56>;
155 pagesize = <32>;
156 read-only;
157 #address-cells = <1>;
158 #size-cells = <1>;
159
160 /* it's empty */
161 };
162 };
163
164 &thermal {
165 status = "disabled";
166 /* does not work, reads 418 degree Celsius */
167 };
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