Commit daa10170 authored by Rahul Bedarkar's avatar Rahul Bedarkar Committed by Ralf Baechle
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MIPS: DTS: img: add device tree for Marduk board 

Add support for Imagination Technologies' Marduk board which is based
on Pistachio SoC. It is also known as Creator Ci40. Marduk is legacy
name and will be there for decades.

Documentation for this board can be found on
https://docs.creatordev.io/ci40/



This patch adds initial support for board with following peripherals:

* PWM based heartbeat LED
* GPIO based buttons
* SPI NOR flash on SPI1
* UART0 and UART1
* SD card
* Ethernet
* USB
* PWM
* ADC
* I2C

Signed-off-by: default avatarRahul Bedarkar <rahul.bedarkar@imgtec.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarJames Hartley <james.hartley@imgtec.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-mips@linux-mips.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14394/


Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent d774a589

Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt

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Imagination Technologies' Pistachio SoC based Marduk Board

==========================================================



Compatible string must be "img,pistachio-marduk", "img,pistachio"



Hardware and other related documentation is available at

https://docs.creatordev.io/ci40/



It is also known as Creator Ci40. Marduk is legacy name and will

be there for decades.

MAINTAINERS

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@@ -7692,6 +7692,12 @@ W: http://www.kernel.org/doc/man-pages 
L:	linux-man@vger.kernel.org

S:	Maintained



MARDUK (CREATOR CI40) DEVICE TREE SUPPORT

M:	Rahul Bedarkar <rahul.bedarkar@imgtec.com>

L:	linux-mips@linux-mips.org

S:	Maintained

F:	arch/mips/boot/dts/img/pistachio_marduk.dts



MARVELL 88E6XXX ETHERNET SWITCH FABRIC DRIVER

M:	Andrew Lunn <andrew@lunn.ch>

M:	Vivien Didelot <vivien.didelot@savoirfairelinux.com>

arch/mips/boot/dts/img/Makefile

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dtb-$(CONFIG_MACH_PISTACHIO)	+= pistachio_marduk.dtb



obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))



# Force kbuild to make empty built-in.o if necessary

obj-				+= dummy.o



always				:= $(dtb-y)

clean-files			:= *.dtb *.dtb.S

arch/mips/boot/dts/img/pistachio_marduk.dts

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/*

 * Copyright (C) 2015, 2016 Imagination Technologies Ltd.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * IMG Marduk board is also known as Creator Ci40.

 */



/dts-v1/;



#include "pistachio.dtsi"



/ {

	model = "IMG Marduk (Creator Ci40)";

	compatible = "img,pistachio-marduk", "img,pistachio";



	aliases {

		serial0 = &uart0;

		serial1 = &uart1;

		ethernet0 = &enet;

		spi0 = &spfi0;

		spi1 = &spfi1;

	};



	chosen {

		bootargs = "root=/dev/sda1 rootwait ro lpj=723968";

		stdout-path = "serial1:115200";

	};



	memory {

		device_type = "memory";

		reg =  <0x00000000 0x10000000>;

	};



	reg_1v8: fixed-regulator {

		compatible = "regulator-fixed";

		regulator-name = "aux_adc_vref";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <1800000>;

		regulator-boot-on;

	};



	internal_dac_supply: internal-dac-supply {

		compatible = "regulator-fixed";

		regulator-name = "internal_dac_supply";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <1800000>;

	};



	leds {

		compatible = "pwm-leds";

		heartbeat {

			label = "marduk:red:heartbeat";

			pwms = <&pwm 3 300000>;

			max-brightness = <255>;

			linux,default-trigger = "heartbeat";

		};

	};



	keys {

		compatible = "gpio-keys";

		button@1 {

			label = "Button 1";

			linux,code = <0x101>; /* BTN_1 */

			gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;

		};

		button@2 {

			label = "Button 2";

			linux,code = <0x102>; /* BTN_2 */

			gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;

		};

	};

};



&internal_dac {

	VDD-supply = <&internal_dac_supply>;

};



&spfi1 {

	status = "okay";



	pinctrl-0 = <&spim1_pins>, <&spim1_quad_pins>, <&spim1_cs0_pin>,

		    <&spim1_cs1_pin>;

	pinctrl-names = "default";

	cs-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>, <&gpio0 1 GPIO_ACTIVE_HIGH>;



	flash@0 {

		compatible = "spansion,s25fl016k", "jedec,spi-nor";

		reg = <0>;

		spi-max-frequency = <50000000>;

	};

};



&uart0 {

	status = "okay";

	assigned-clock-rates = <114278400>, <1843200>;

};



&uart1 {

	status = "okay";

};



&usb {

	status = "okay";

};



&enet {

	status = "okay";

};



&pin_enet {

	drive-strength = <2>;

};



&pin_enet_phy_clk {

	drive-strength = <2>;

};



&sdhost {

	status = "okay";

	bus-width = <4>;

	disable-wp;

};



&pin_sdhost_cmd {

	drive-strength = <2>;

};



&pin_sdhost_data {

	drive-strength = <2>;

};



&pwm {

	status = "okay";



	pinctrl-0 = <&pwmpdm0_pin>, <&pwmpdm1_pin>, <&pwmpdm2_pin>,

		    <&pwmpdm3_pin>;

	pinctrl-names = "default";

};



&adc {

	status = "okay";

	vref-supply = <&reg_1v8>;

	adc-reserved-channels = <0x10>;

};



&i2c2 {

	status = "okay";

	clock-frequency = <400000>;



	tpm@20 {

		compatible = "infineon,slb9645tt";

		reg = <0x20>;

	};



};



&i2c3 {

	status = "okay";

	clock-frequency = <400000>;

};

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