1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
2 /*
3 * Broadcom BCM470X / BCM5301X ARM platform code.
4 * DTS for Meraki MR32 / Codename: Espresso
5 *
6 * Copyright (C) 2018-2020 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,mr32", "brcm,bcm53016", "brcm,bcm4708";
17 model = "Meraki MR32";
18
19 chosen {
20 bootargs = " console=ttyS0,115200n8 earlycon";
21 };
22
23 memory@0 {
24 reg = <0x00000000 0x08000000>;
25 device_type = "memory";
26 };
27
28 aliases {
29 serial1 = &uart2;
30 };
31
32 leds {
33 compatible = "gpio-leds";
34
35 sysled3 {
36 function = LED_FUNCTION_FAULT;
37 color = <LED_COLOR_ID_AMBER>;
38 gpios = <&chipcommon 18 GPIO_ACTIVE_LOW>;
39 panic-indicator;
40 };
41 sysled2 {
42 function = LED_FUNCTION_INDICATOR;
43 color = <LED_COLOR_ID_WHITE>;
44 gpios = <&chipcommon 19 GPIO_ACTIVE_HIGH>;
45 };
46 };
47
48 keys {
49 compatible = "gpio-keys";
50
51 button-restart {
52 label = "Reset";
53 linux,code = <KEY_RESTART>;
54 gpios = <&chipcommon 21 GPIO_ACTIVE_LOW>;
55 };
56 };
57
58 pwm-leds {
59 compatible = "pwm-leds";
60
61 led-0 {
62 /* SYS-LED 1 - Tricolor */
63 function = LED_FUNCTION_INDICATOR;
64 color = <LED_COLOR_ID_RED>;
65 pwms = <&pwm 0 50000 0>;
66 max-brightness = <255>;
67 };
68
69 led-1 {
70 /* SYS-LED 1 - Tricolor */
71 function = LED_FUNCTION_POWER;
72 color = <LED_COLOR_ID_GREEN>;
73 pwms = <&pwm 1 50000 0>;
74 max-brightness = <255>;
75 };
76
77 led-2 {
78 /* SYS-LED 1 - Tricolor */
79 function = LED_FUNCTION_INDICATOR;
80 color = <LED_COLOR_ID_BLUE>;
81 pwms = <&pwm 2 50000 0>;
82 max-brightness = <255>;
83 };
84 };
85 };
86
87 &uart0 {
88 clock-frequency = <62500000>;
89 /delete-property/ clocks;
90 };
91
92 &uart1 {
93 status = "disabled";
94 };
95
96 &uart2 {
97 status = "okay";
98 /*
99 * bluetooth-le {
100 * compatible = "brcm,bcm20732";
101 * enable-gpios = <&chipcommon 20 GPIO_ACTIVE_HIGH>;
102 *};
103 */
104 };
105
106 &gmac0 {
107 nvmem-cell-names = "mac-address";
108 nvmem-cells = <&mac_address>;
109 };
110
111 &gmac1 {
112 status = "disabled";
113 };
114 &gmac2 {
115 status = "disabled";
116 };
117 &gmac3 {
118 status = "disabled";
119 };
120
121 &pwm {
122 status = "okay";
123 pinctrl-names = "default";
124 pinctrl-0 = <&pinmux_pwm>;
125 };
126
127 &nandcs {
128 partitions {
129 /*
130 * The partition autodetection does not work for this device.
131 * It will only detect the "nvram" partition with an incorrect size.
132 * [ 1.721667] 1 bcm47xxpart partitions found on MTD device brcmnand.0
133 * [ 1.727962] Creating 1 MTD partitions on "brcmnand.0":
134 * [ 1.733117] 0x000000400000-0x000008000000 : "nvram"
135 */
136
137 compatible = "fixed-partitions";
138 #address-cells = <0x1>;
139 #size-cells = <0x1>;
140
141 partition@0 {
142 label = "u-boot";
143 reg = <0x0 0x100000>;
144 read-only;
145 };
146
147 partition@100000 {
148 label = "bootkernel1";
149 reg = <0x100000 0x300000>;
150 read-only;
151 };
152
153 partition@400000 {
154 label = "nvram";
155 reg = <0x400000 0x100000>;
156 read-only;
157 };
158
159 partition@500000 {
160 label = "bootkernel2";
161 reg = <0x500000 0x300000>;
162 read-only;
163 };
164
165 partition@800000 {
166 label = "ubi";
167 reg = <0x800000 0x7780000>;
168 };
169 };
170 };
171
172 &srab {
173 status = "okay";
174
175 ports {
176 port@0 {
177 label = "poe";
178 };
179
180 port@5 {
181 label = "cpu";
182
183 fixed-link {
184 speed = <1000>;
185 full-duplex;
186 };
187 };
188
189 port@7 {
190 status = "disabled";
191 };
192
193 port@8 {
194 status = "disabled";
195 };
196 };
197 };
198
199 &i2c0 {
200 status = "okay";
201
202 pinctrl-names = "default";
203 pinctrl-0 = <&pinmux_i2c>;
204
205 clock-frequency = <100000>;
206
207 current_sense: ina219@45 {
208 compatible = "ti,ina219";
209 reg = <0x45>;
210 shunt-resistor = <60000>; /* = 60 mOhms */
211 };
212
213 eeprom: eeprom@50 {
214 compatible = "atmel,24c64";
215 reg = <0x50>;
216 pagesize = <32>;
217 read-only;
218 #address-cells = <1>;
219 #size-cells = <1>;
220
221 mac_address: mac-address@66 {
222 reg = <0x66 0x6>;
223 };
224 };
225 };
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