xref: /OK3568_Linux_fs/kernel/arch/arm/boot/dts/bcm53016-meraki-mr32.dts (revision 4882a59341e53eb6f0b4789bf948001014eff981)

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
 * Broadcom BCM470X / BCM5301X ARM platform code.
 * DTS for Meraki MR32 / Codename: Espresso
 *
 * Copyright (C) 2018-2020 Christian Lamparter <chunkeey@gmail.com>
 */

/dts-v1/;

#include "bcm4708.dtsi"
#include "bcm5301x-nand-cs0-bch8.dtsi"
#include <dt-bindings/leds/common.h>

/ {
	compatible = "meraki,mr32", "brcm,brcm53016", "brcm,bcm4708";
	model = "Meraki MR32";

	chosen {
		bootargs = " console=ttyS0,115200n8 earlycon";
	};

	memory@0 {
		reg = <0x00000000 0x08000000>;
		device_type = "memory";
	};

	aliases {
		serial1 = &uart2;
	};

	leds {
		compatible = "gpio-leds";

		sysled3 {
			function = LED_FUNCTION_FAULT;
			color = <LED_COLOR_ID_AMBER>;
			gpios = <&chipcommon 18 GPIO_ACTIVE_LOW>;
			panic-indicator;
		};
		sysled2 {
			function = LED_FUNCTION_INDICATOR;
			color = <LED_COLOR_ID_WHITE>;
			gpios = <&chipcommon 19 GPIO_ACTIVE_HIGH>;
		};
	};

	keys {
		compatible = "gpio-keys";
		#address-cells = <1>;
		#size-cells = <0>;

		restart {
			label = "Reset";
			linux,code = <KEY_RESTART>;
			gpios = <&chipcommon 21 GPIO_ACTIVE_LOW>;
		};
	};

	pwm-leds {
		compatible = "pwm-leds";

		red {
			/* SYS-LED 1 - Tricolor */
			function = LED_FUNCTION_INDICATOR;
			color = <LED_COLOR_ID_RED>;
			pwms = <&pwm 0 50000 0>;
			max-brightness = <255>;
		};

		green {
			/* SYS-LED 1 - Tricolor */
			function = LED_FUNCTION_POWER;
			color = <LED_COLOR_ID_GREEN>;
			pwms = <&pwm 1 50000 0>;
			max-brightness = <255>;
		};

		blue {
			/* SYS-LED 1 - Tricolor */
			function = LED_FUNCTION_INDICATOR;
			color = <LED_COLOR_ID_BLUE>;
			pwms = <&pwm 2 50000 0>;
			max-brightness = <255>;
		};
	};

	i2c {
		/*
		 * The platform provided I2C does not budge.
		 * This is a replacement until I can figure
		 * out what are the missing bits...
		 */

		compatible = "i2c-gpio";
		sda-gpios = <&chipcommon 5 GPIO_ACTIVE_HIGH>;
		scl-gpios = <&chipcommon 4 GPIO_ACTIVE_HIGH>;
		i2c-gpio,delay-us = <10>; /* close to 100 kHz */
		#address-cells = <1>;
		#size-cells = <0>;

		current_sense: ina219@45 {
			compatible = "ti,ina219";
			reg = <0x45>;
			shunt-resistor = <60000>; /* = 60 mOhms */
		};

		eeprom: eeprom@50 {
			compatible = "atmel,24c64";
			reg = <0x50>;
			pagesize = <32>;
			read-only;
		};
	};
};

&uart0 {
	clock-frequency = <62500000>;
	/delete-property/ clocks;
};

&uart1 {
	status = "disabled";
};

&uart2 {
	status = "okay";
	/*
	 * bluetooth-le {
	 *	compatible = "brcm,bcm20732";
	 *	enable-gpios = <&chipcommon 20 GPIO_ACTIVE_HIGH>;
	 *};
	 */
};

&gmac1 {
	status = "disabled";
};
&gmac2 {
	status = "disabled";
};
&gmac3 {
	status = "disabled";
};

&pwm {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&pinmux_pwm>;
};

&nandcs {
	nand-ecc-algo = "hw";

	partitions {
		/*
		 * The partition autodetection does not work for this device.
		 * It will only detect the "nvram" partition with an incorrect size.
		 *	[    1.721667] 1 bcm47xxpart partitions found on MTD device brcmnand.0
		 *	[    1.727962] Creating 1 MTD partitions on "brcmnand.0":
		 *	[    1.733117] 0x000000400000-0x000008000000 : "nvram"
		 */

		compatible = "fixed-partitions";
		#address-cells = <0x1>;
		#size-cells = <0x1>;

		partition0@0 {
			label = "u-boot";
			reg = <0x0 0x100000>;
			read-only;
		};

		partition1@100000 {
			label = "bootkernel1";
			reg = <0x100000 0x300000>;
			read-only;
		};

		partition2@400000 {
			label = "nvram";
			reg = <0x400000 0x100000>;
			read-only;
		};

		partition3@500000 {
			label = "bootkernel2";
			reg = <0x500000 0x300000>;
			read-only;
		};

		partition4@800000 {
			label = "ubi";
			reg = <0x800000 0x7780000>;
		};
	};
};

&srab {
	status = "okay";

	ports {
		port@0 {
			reg = <0>;
			label = "poe";
		};

		port@5 {
			reg = <5>;
			label = "cpu";
			ethernet = <&gmac0>;

			fixed-link {
				speed = <1000>;
				duplex-full;
			};
		};
	};
};