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};