Patch demonstrating the differences from the original imx32-olinuxino.dts source

imx23-holiday.dts.patch

--- arch/arm/boot/dts/imx23-olinuxino.dts	2017-02-06 17:27:01.054966200 +1100
+++ arch/arm/boot/dts/imx23-holiday.dts	2017-02-06 17:38:01.791999700 +1100
@@ -7,18 +7,21 @@
  * License. You may obtain a copy of the GNU General Public License
  * Version 2 or later at the following locations:
  *
  * http://www.opensource.org/licenses/gpl-license.html
  * http://www.gnu.org/copyleft/gpl.html
+ *
+ * Adjusted for MooresCloud Holiday lights, based on the OLinuXino open hardware
+ * Edits by Robin Frousheger
  */
 
 /dts-v1/;
 #include <dt-bindings/gpio/gpio.h>
 #include "imx23.dtsi"
 
 / {
-	model = "i.MX23 Olinuxino Low Cost Board";
+	model = "MooresCloud Holiday Lights";
 	compatible = "olimex,imx23-olinuxino", "fsl,imx23";
 
 	memory {
 		reg = <0x40000000 0x04000000>;
 	};
@@ -46,28 +49,36 @@
 					fsl,drive-strength = <MXS_DRIVE_4mA>;
 					fsl,voltage = <MXS_VOLTAGE_HIGH>;
 					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
-				led_pin_gpio2_1: led_gpio2_1@0 {
+				spi2_pins_holiday: spi2@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						MX23_PAD_SSP1_DETECT__GPIO_2_1
+						MX23_PAD_GPMI_WRN__SSP2_SCK
+						MX23_PAD_GPMI_RDY1__SSP2_CMD
+						MX23_PAD_GPMI_D00__SSP2_DATA0
 					>;
-					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
 					fsl,voltage = <MXS_VOLTAGE_HIGH>;
-					fsl,pull-up = <MXS_PULL_DISABLE>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 			};
 
 			ssp1: ssp@80034000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
 				compatible = "fsl,imx23-spi";
 				pinctrl-names = "default";
-				pinctrl-0 = <&spi2_pins_a>;
+				pinctrl-0 = <&spi2_pins_holiday>;
 				status = "okay";
+
+				spidev: spidev@0 {
+					compatible = "spidev";
+					spi-max-frequency = <5000000>;
+					reg = <0>;
+				};
 			};
 		};
 
 		apbx@80040000 {
 			lradc@80050000 {
@@ -76,10 +87,18 @@
 
 			i2c: i2c@80058000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&i2c_pins_b>;
 				status = "okay";
+
+				eeprom@50 {
+					compatible = "atmel,24c64";
+					reg = <0x50>;
+					pagesize = <32>;
+					read-only;
+					status = "okay";
+				};
 			};
 
 			duart: serial@80070000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&duart_pins_a>;
@@ -120,17 +139,6 @@
 			enable-active-high;
 			startup-delay-us = <300>; /* LAN9215 requires a POR of 200us minimum */
 			gpio = <&gpio0 17 0>;
 		};
 	};
-
-	leds {
-		compatible = "gpio-leds";
-		pinctrl-names = "default";
-		pinctrl-0 = <&led_pin_gpio2_1>;
-
-		user {
-			label = "green";
-			gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
-		};
-	};
 };

Some notes:

• The on-board LED was not placed during construction of the Holiday, so leaving the devicetree segments in could get confusing for folk finding an entry for it in /sys/class/leds/
• No SS pin is defined for the SPI interface as the Holiday does not use it at all
• SPI interface pins are defined with pull-ups enabled, mainly because that's how they're defined for the OLinuXino
• EEPROM is defined as read-only so folk don't accidentally interfere with the Arduino portion of the Holiday