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: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jespern@axis.com>

diff --git a/arch/cris/boot/dts/dev88.dts b/arch/cris/boot/dts/dev88.dts
index 4fa5a3f9d0ec1ec30a52a91b22c18377888f0c4f..b9a230d108748d97fcc2f81f2b6b6db0d97dfd0a 100644 (file)
--- a/arch/cris/boot/dts/dev88.dts
+++ b/arch/cris/boot/dts/dev88.dts
@@ -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";
+               };
+       };
 };

diff --git a/arch/cris/boot/dts/etraxfs.dtsi b/arch/cris/boot/dts/etraxfs.dtsi
index 909bcedc356580da301ad06da0c3adbbe0755c99..bf1b8582d4d803408411c59e779b46ea22f8dba8 100644 (file)
--- a/arch/cris/boot/dts/etraxfs.dtsi
+++ b/arch/cris/boot/dts/etraxfs.dtsi
@@ -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>;