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Commit a95b3ba2 authored by Rabin Vincent's avatar Rabin Vincent Committed by Jesper Nilsson
Browse files

CRIS v32: dev88: add GPIO, LEDs, RTC, temp sensor 



Add the GPIO driver to the device tree and, using it, support for the
LEDs and the RTC chip (via I2C-GPIO), as well as the temperature sensor
(via SPI-GPIO).

Signed-off-by: default avatarRabin Vincent <rabin@rab.in>
Signed-off-by: default avatarJesper Nilsson <jespern@axis.com>
parent d4dde7d2

arch/cris/boot/dts/dev88.dts

+49 −0
Original line number Diff line number Diff line 
/dts-v1/;



#include <dt-bindings/gpio/gpio.h>



/include/ "etraxfs.dtsi"



/ {
@@ -15,4 +17,51 @@ 
			status = "okay";

		};

	};



	spi {

		compatible = "spi-gpio";

		#address-cells = <1>;

		#size-cells = <0>;



		gpio-sck = <&gio 1 0 0xd>;

		gpio-miso = <&gio 4 0 0xd>;

		gpio-mosi = <&gio 0 0 0xd>;

		cs-gpios = <&gio 3 0 0xd>;

		num-chipselects = <1>;



		temp-sensor@0 {

			compatible = "ti,lm70";

			reg = <0>;



			spi-max-frequency = <100000>;

		};

	};



	i2c {

		compatible = "i2c-gpio";

		gpios = <&gio 5 0 0xd>, <&gio 6 0 0xd>;

		i2c-gpio,delay-us = <2>;

		#address-cells = <1>;

		#size-cells = <0>;



		rtc@51 {

			compatible = "nxp,pcf8563";

			reg = <0x51>;

		};

	};



	leds {

		compatible = "gpio-leds";



		network {

			label = "network";

			gpios = <&gio 2 GPIO_ACTIVE_LOW 0xa>;

		};



		status {

			label = "status";

			gpios = <&gio 3 GPIO_ACTIVE_LOW 0xa>;

			linux,default-trigger = "heartbeat";

		};

	};

};

arch/cris/boot/dts/etraxfs.dtsi

+8 −0
Original line number Diff line number Diff line
@@ -28,6 +28,14 @@ 
			#interrupt-cells = <1>;

		};



		gio: gpio@b001a000 {

			compatible = "axis,etraxfs-gio";

			reg = <0xb001a000 0x1000>;

			interrupts = <50>;

			gpio-controller;

			#gpio-cells = <3>;

		};



		serial@b00260000 {

			compatible = "axis,etraxfs-uart";

			reg = <0xb0026000 0x1000>;