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		#address-cells = <1>;
 43		#size-cells = <0>;
 44
 45		key-restart {
 46			label = "Reset";
 47			linux,code = <KEY_RESTART>;
 48			gpios = <&chipcommon 11 GPIO_ACTIVE_LOW>;
 49		};
 50	};
 51};
 52
 53&uart0 {
 54	clock-frequency = <50000000>;
 55	/delete-property/ clocks;
 56};
 57
 58&uart1 {
 59	status = "disabled";
 60};
 61
 62&gmac0 {
 63	status = "okay";
 64};
 65
 66&gmac1 {
 67	status = "disabled";
 68};
 69&gmac2 {
 70	status = "disabled";
 71};
 72&gmac3 {
 73	status = "disabled";
 74};
 75
 76&nandcs {
 77	nand-ecc-algo = "hw";
 78
 79	partitions {
 80		compatible = "fixed-partitions";
 81		#address-cells = <0x1>;
 82		#size-cells = <0x1>;
 83
 84		partition@0 {
 85			label = "u-boot";
 86			reg = <0x0 0x200000>;
 87			read-only;
 88		};
 89
 90		partition@200000 {
 91			label = "u-boot-env";
 92			reg = <0x200000 0x200000>;
 93			/* empty */
 94		};
 95
 96		partition@400000 {
 97			label = "u-boot-backup";
 98			reg = <0x400000 0x200000>;
 99			/* empty */
100		};
101
102		partition@600000 {
103			label = "u-boot-env-backup";
104			reg = <0x600000 0x200000>;
105			/* empty */
106		};
107
108		partition@800000 {
109			label = "ubi";
110			reg = <0x800000 0x7780000>;
111		};
112	};
113};
114
115&srab {
116	status = "okay";
117
118	ports {
119		port@0 {
120			reg = <0>;
121			label = "poe";
122		};
123
124		port@5 {
125			reg = <5>;
126			label = "cpu";
127			ethernet = <&gmac0>;
128
129			fixed-link {
130				speed = <1000>;
131				duplex-full;
132			};
133		};
134	};
135};
136
137&i2c0 {
138	status = "okay";
139
140	pinctrl-names = "default";
141	pinctrl-0 = <&pinmux_i2c>;
142
143	clock-frequency = <100000>;
144
145	ina219@40 {
146		compatible = "ti,ina219"; /* PoE power */
147		reg = <0x40>;
148		shunt-resistor = <60000>; /* = 60 mOhms */
149	};
150
151	eeprom@56 {
152		compatible = "atmel,24c64";
153		reg = <0x56>;
154		pagesize = <32>;
155		read-only;
156		#address-cells = <1>;
157		#size-cells = <1>;
158
159		/* it's empty */
160	};
161};
162
163&thermal {
164	status = "disabled";
165	/* does not work, reads 418 degree Celsius */
166};