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

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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: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jespern@axis.com>
This commit is contained in:
Rabin Vincent 2015-08-03 20:19:21 +02:00 committed by Jesper Nilsson
parent d4dde7d21c
commit a95b3ba2c3
2 changed files with 57 additions and 0 deletions
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49
arch/cris/boot/dts/dev88.dts
View File

@ -1,5 +1,7 @@
/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";
};
};
};

8
arch/cris/boot/dts/etraxfs.dtsi
View File

@ -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>;