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1 office 1 /*
2 * Device Tree Source for Meraki MR24 (Ikarem)
3 *
4 * Copyright (C) 2016 Chris Blake <chrisrblake93@gmail.com>
5 *
6 * Based on Cisco Meraki GPL Release r23-20150601 MR24 DTS
7 *
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2. This program is licensed "as is" without
10 * any warranty of any kind, whether express or implied.
11 */
12  
13 /dts-v1/;
14  
15 #include "apm82181.dtsi"
16  
17 / {
18 model = "Meraki MR24 Access Point";
19 compatible = "meraki,mr24", "meraki,ikarem", "apm,bluestone";
20  
21 aliases {
22 serial0 = &UART1;
23 led-boot = &status;
24 led-failsafe = &failsafe;
25 led-running = &status;
26 led-upgrade = &status;
27 };
28  
29 chosen {
30 stdout-path = "/plb/opb/serial@ef600400";
31 };
32 };
33  
34  
35 &CRYPTO {
36 status = "okay";
37 };
38  
39 &PKA {
40 status = "okay";
41 };
42  
43 &TRNG {
44 status = "okay";
45 };
46  
47 &EBC0 {
48 /* Ikarem has 32MB of NAND */
49 ndfc@1,0 {
50 status = "okay";
51 /* 32 MiB NAND Flash */
52 nand {
53 partition@0 {
54 label = "u-boot";
55 reg = <0x00000000 0x00150000>;
56 read-only;
57 };
58  
59 partition@150000 {
60 /*
61 * The u-boot environment size is one NAND
62 * block (16KiB). u-boot allocates four NAND
63 * blocks (64KiB) in order to have spares
64 * around for bad block management
65 */
66 label = "u-boot-env";
67 reg = <0x00150000 0x00010000>;
68 read-only;
69 };
70  
71 partition@160000 {
72 /*
73 * redundant u-boot environment.
74 * has to be kept it in sync with the
75 * data in "u-boot-env".
76 */
77 label = "u-boot-env-redundant";
78 reg = <0x00160000 0x00010000>;
79 read-only;
80 };
81  
82 partition@170000 {
83 label = "oops";
84 reg = <0x00170000 0x00010000>;
85 };
86  
87 partition@180000 {
88 label = "ubi";
89 reg = <0x00180000 0x01e80000>;
90 };
91 };
92 };
93 };
94  
95 &UART1 {
96 status = "okay";
97 };
98  
99 &GPIO0 {
100 status = "okay";
101 };
102  
103 &IIC0 {
104 status = "okay";
105 /* Boot ROM is at 0x52-0x53, do not touch */
106 /* Unknown chip at 0x6e, not sure what it is */
107 };
108  
109 &EMAC0 {
110 status = "okay";
111  
112 phy-mode = "rgmii-id";
113 phy-map = <0x2>;
114 phy-address = <0x1>;
115 phy-handle = <&phy>;
116  
117 mdio {
118 #address-cells = <1>;
119 #size-cells = <0>;
120  
121 phy: phy@1 {
122 compatible = "ethernet-phy-ieee802.3-c22";
123 reg = <1>;
124 };
125 };
126 };
127  
128 &POB0 {
129 leds {
130 compatible = "gpio-leds";
131  
132 status: power-green {
133 label = "mr24:green:power";
134 gpios = <&GPIO0 18 GPIO_ACTIVE_LOW>;
135 };
136  
137 failsafe: power-orange {
138 label = "mr24:orange:power";
139 gpios = <&GPIO0 19 GPIO_ACTIVE_LOW>;
140 };
141  
142 lan {
143 label = "mr24:green:wan";
144 gpios = <&GPIO0 17 GPIO_ACTIVE_LOW>;
145 };
146  
147 ssi-0 {
148 label = "mr24:green:wifi1";
149 gpios = <&GPIO0 23 GPIO_ACTIVE_LOW>;
150 };
151  
152 ssi-1 {
153 label = "mr24:green:wifi2";
154 gpios = <&GPIO0 22 GPIO_ACTIVE_LOW>;
155 };
156  
157 ssi-2 {
158 label = "mr24:green:wifi3";
159 gpios = <&GPIO0 21 GPIO_ACTIVE_LOW>;
160 };
161  
162 ssi-3 {
163 label = "mr24:green:wifi4";
164 gpios = <&GPIO0 20 GPIO_ACTIVE_LOW>;
165 };
166 };
167  
168 keys {
169 compatible = "gpio-keys-polled";
170 #address-cells = <1>;
171 #size-cells = <0>;
172 poll-interval = <60>; /* 3 * 20 = 60ms */
173 autorepeat;
174  
175 reset {
176 /* Label as per Meraki's "MR24 Installation Guide" */
177 label = "Factory Reset Button";
178 linux,code = <KEY_RESTART>;
179 gpios = <&GPIO0 16 GPIO_ACTIVE_LOW>;
180 };
181 };
182 };
183  
184 &PCIE0 {
185 status = "okay";
186 };
187  
188 &MSI {
189 status = "okay";
190 };