mx23_olinuxino: enable device tree

Add the dts file for the Olimex Olinuxino from the linux kernel, and enable
its use in this machine's defconfig.

Signed-off-by: Trevor Woerner <twoerner@gmail.com>

arch/arm/dts/Makefile

@@ -653,6 +653,9 @@ dtb-$(CONFIG_VF610) += vf500-colibri.dtb \
 dtb-$(CONFIG_MX23) += \
 	imx23-evk.dtb
 
+dtb-$(CONFIG_TARGET_MX23_OLINUXINO) += \
+	imx23-olinuxino.dtb
+
 dtb-$(CONFIG_MX28) += \
 	imx28-xea.dtb
 

arch/arm/dts/imx23-olinuxino.dts

+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ */
+
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include "imx23.dtsi"
+
+/ {
+	model = "i.MX23 Olinuxino Low Cost Board";
+	compatible = "olimex,imx23-olinuxino", "fsl,imx23";
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0x40000000 0x04000000>;
+	};
+
+	apb@80000000 {
+		apbh@80000000 {
+			ssp0: spi@80010000 {
+				compatible = "fsl,imx23-mmc";
+				pinctrl-names = "default";
+				pinctrl-0 = <&mmc0_4bit_pins_a &mmc0_sck_cfg>;
+				bus-width = <4>;
+				broken-cd;
+				status = "okay";
+			};
+
+			pinctrl@80018000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&hog_pins_a>;
+
+				hog_pins_a: hog@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						MX23_PAD_GPMI_ALE__GPIO_0_17
+					>;
+					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 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						MX23_PAD_SSP1_DETECT__GPIO_2_1
+					>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
+				};
+			};
+
+			ssp1: spi@80034000 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				compatible = "fsl,imx23-spi";
+				pinctrl-names = "default";
+				pinctrl-0 = <&spi2_pins_a>;
+				status = "okay";
+			};
+		};
+
+		apbx@80040000 {
+			lradc@80050000 {
+				status = "okay";
+			};
+
+			i2c: i2c@80058000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&i2c_pins_b>;
+				status = "okay";
+			};
+
+			duart: serial@80070000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&duart_pins_a>;
+				status = "okay";
+			};
+
+			auart0: serial@8006c000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&auart0_2pins_a>;
+				status = "okay";
+			};
+
+			usbphy0: usbphy@8007c000 {
+				status = "okay";
+			};
+		};
+	};
+
+	ahb@80080000 {
+		usb0: usb@80080000 {
+			dr_mode = "host";
+			vbus-supply = <&reg_usb0_vbus>;
+			status = "okay";
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		reg_usb0_vbus: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "usb0_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			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>;
+		};
+	};
+};

configs/mx23_olinuxino_defconfig

@@ -11,6 +11,7 @@ CONFIG_SPL_TEXT_BASE=0x00001000
 CONFIG_TARGET_MX23_OLINUXINO=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL=y
+CONFIG_DEFAULT_DEVICE_TREE="imx23-olinuxino"
 CONFIG_BOOTDELAY=3
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_ARCH_MISC_INIT=y
@@ -24,6 +25,7 @@ CONFIG_CMD_DHCP=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_FAT=y
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
@@ -44,4 +46,3 @@ CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_HOST_ETHER=y
 CONFIG_USB_ETHER_SMSC95XX=y
-CONFIG_OF_LIBFDT=y