ARM: dts: imx6dl-colibri: Add support for Toradex Aster carrier board

Add support for Toradex Aster, small form-factor with header compatible
with Arduino Uno and Raspberry Pi (RPi) maker boards.

Additional detail available at
https://www.toradex.com/products/carrier-boards/aster-carrier-boardSigned-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/Makefile

@@ -458,6 +458,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6dl-aristainetos_7.dtb \
 	imx6dl-aristainetos2_4.dtb \
 	imx6dl-aristainetos2_7.dtb \
+	imx6dl-colibri-aster.dtb \
 	imx6dl-colibri-eval-v3.dtb \
 	imx6dl-colibri-iris.dtb \
 	imx6dl-colibri-iris-v2.dtb \

arch/arm/boot/dts/imx6dl-colibri-aster.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2022 Toradex
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include "imx6dl.dtsi"
+#include "imx6qdl-colibri.dtsi"
+
+/ {
+	model = "Toradex Colibri iMX6DL/S on Colibri Aster Board";
+	compatible = "toradex,colibri_imx6dl-aster", "toradex,colibri_imx6dl",
+		     "fsl,imx6dl";
+
+	aliases {
+		i2c0 = &i2c2;
+		i2c1 = &i2c3;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+/* Colibri SSP */
+&ecspi4 {
+	cs-gpios = <
+		&gpio5 2 GPIO_ACTIVE_HIGH
+		&gpio5 4 GPIO_ACTIVE_HIGH
+	>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi4 &pinctrl_csi_gpio_2>;
+	status = "okay";
+};
+
+/* Colibri I2C: I2C3_SDA/SCL on SODIMM 194/196 */
+&i2c3 {
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <
+		&pinctrl_csi_gpio_1
+		&pinctrl_gpio_2
+		&pinctrl_gpio_aster
+		&pinctrl_usbh_oc_1
+		&pinctrl_usbc_id_1
+		&pinctrl_weim_gpio_5
+	>;
+
+	pinctrl_gpio_aster: gpioaster {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL2__GPIO4_IO10		0x1b0b0
+			MX6QDL_PAD_KEY_ROW2__GPIO4_IO11		0x1b0b0
+			MX6QDL_PAD_KEY_ROW4__GPIO4_IO15		0x1b0b0
+			MX6QDL_PAD_NANDF_D1__GPIO2_IO01		0x1b0b0
+			MX6QDL_PAD_NANDF_D3__GPIO2_IO03		0x1b0b0
+			MX6QDL_PAD_NANDF_D6__GPIO2_IO06		0x1b0b0
+			MX6QDL_PAD_SD4_DAT0__GPIO2_IO08		0x1b0b0
+			MX6QDL_PAD_SD4_DAT3__GPIO2_IO11		0x1b0b0
+		>;
+	};
+};
+
+&pwm1 {
+	status = "okay";
+};
+
+&pwm2 {
+	status = "okay";
+};
+
+&pwm3 {
+	status = "okay";
+};
+
+&pwm4 {
+	status = "okay";
+};
+
+&reg_usb_host_vbus {
+	status = "okay";
+};
+
+&uart1 {
+	status = "okay";
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&uart3 {
+	status = "okay";
+};
+
+&usbh1 {
+	vbus-supply = <&reg_usb_host_vbus>;
+	status = "okay";
+};
+
+&usbotg {
+	status = "okay";
+};
+
+/* Colibri MMC */
+&usdhc1 {
+	status = "okay";
+};