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};
190
191&i2c0 {
192	status = "okay";
193
194	pinctrl-names = "default";
195	pinctrl-0 = <&pinmux_i2c>;
196
197	clock-frequency = <100000>;
198
199	current_sense: ina219@45 {
200		compatible = "ti,ina219";
201		reg = <0x45>;
202		shunt-resistor = <60000>; /* = 60 mOhms */
203	};
204
205	eeprom: eeprom@50 {
206		compatible = "atmel,24c64";
207		reg = <0x50>;
208		pagesize = <32>;
209		read-only;
210		#address-cells = <1>;
211		#size-cells = <1>;
212
213		mac_address: mac-address@66 {
214			reg = <0x66 0x6>;
215		};
216	};
217};
218