ARM: dts: imx6ul: support Engicam MicroGEA RMM board

Support Engicam MicroGEA RMM board with:

- 256 Mbytes NAND Flash
- 512 Mbytes DRAM DDR2
- CAN
- LEDs
- Micro SD card connector
- USB 2.0 high-speed/full-speed
- Ethernet MAC

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Author: passgat

arch/arm/boot/dts/nxp/imx/Makefile

@@ -357,6 +357,7 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
 	imx6ull-dhcom-picoitx.dtb \
 	imx6ull-dhcor-maveo-box.dtb \
 	imx6ull-engicam-microgea-bmm.dtb \
+	imx6ull-engicam-microgea-rmm.dtb \
 	imx6ull-jozacp.dtb \
 	imx6ull-kontron-bl.dtb \
 	imx6ull-myir-mys-6ulx-eval.dtb \

arch/arm/boot/dts/nxp/imx/imx6ull-engicam-microgea-rmm.dts

@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2025 Amarula Solutions, Dario Binacchi <dario.binacchi@amarulasolutions.com>
+ * Copyright (C) 2025 Engicam srl
+ */
+
+/dts-v1/;
+
+#include "imx6ull-engicam-microgea.dtsi"
+
+/ {
+	compatible = "engicam,microgea-imx6ull-rmm",
+		     "engicam,microgea-imx6ull", "fsl,imx6ull";
+	model = "Engicam MicroGEA i.MX6ULL BMM Board";
+
+	backlight {
+		compatible = "pwm-backlight";
+		brightness-levels = <0 100>;
+		num-interpolated-steps = <100>;
+		default-brightness-level = <85>;
+		pwms = <&pwm8 0 100000 0>;
+	};
+
+	buzzer {
+		compatible = "pwm-beeper";
+		pwms = <&pwm4 0 1000000 0>;
+	};
+
+	reg_1v8: regulator-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "1v8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_usb1_vbus: regulator-usb1-vbus {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_usb1>;
+		regulator-name = "usb1_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio5 0 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_usb2_vbus: regulator-usb2-vbus {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_usb2>;
+		regulator-name = "usbotg_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio5 3 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_ext_pwr: regulator-ext-pwr {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_ext_pwr>;
+		regulator-name = "ext-pwr";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "imx6ull-microgea-rmm-sgtl5000";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,bitclock-master = <&codec_dai>;
+		simple-audio-card,frame-master = <&codec_dai>;
+		simple-audio-card,widgets =
+			"Microphone", "Mic Jack",
+			"Headphone", "Headphone Jack";
+		simple-audio-card,routing =
+			"MIC_IN", "Mic Jack",
+			"Mic Jack", "Mic Bias",
+			"Headphone Jack", "HP_OUT";
+
+		cpu_dai: simple-audio-card,cpu {
+			sound-dai = <&sai2>;
+		};
+
+		codec_dai: simple-audio-card,codec {
+			sound-dai = <&codec>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_leds>;
+
+		led-0 {
+			gpios = <&gpio2 10 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			status = "okay";
+		};
+
+		led-1 {
+			gpios = <&gpio2 11 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			status = "okay";
+		};
+	};
+};
+
+&can1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_can>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	touchscreen: touchscreen@38 {
+		compatible ="edt,edt-ft5306";
+		reg = <0x38>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_touchscreen>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+		reset-gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;
+		report-rate-hz = <6>;
+		/* settings valid only for Hycon touchscreen */
+		touchscreen-size-x = <1280>;
+		touchscreen-size-y = <800>;
+	};
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	codec: audio-codec@a {
+		compatible = "fsl,sgtl5000";
+		reg = <0x0a>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_mclk>;
+		#sound-dai-cells = <0>;
+		clocks = <&clks IMX6UL_CLK_CKO>;
+		assigned-clocks = <&clks IMX6UL_CLK_CKO2_SEL>,
+				  <&clks IMX6UL_CLK_CKO2_PODF>,
+				  <&clks IMX6UL_CLK_CKO2>,
+				  <&clks IMX6UL_CLK_CKO>;
+		assigned-clock-parents = <&clks IMX6UL_CLK_OSC>,
+					 <&clks IMX6UL_CLK_CKO2_SEL>,
+					 <&clks IMX6UL_CLK_CKO2_PODF>,
+					 <&clks IMX6UL_CLK_CKO2>;
+		VDDA-supply = <&reg_3v3>;
+		VDDIO-supply = <&reg_3v3>;
+		VDDD-supply = <&reg_1v8>;
+	};
+};
+
+&pwm4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm4>;
+	status = "okay";
+};
+
+&pwm8 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm8>;
+	status = "okay";
+};
+
+&sai2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai2>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&usbotg1 {
+	dr_mode = "host";
+	vbus-supply = <&reg_usb1_vbus>;
+	disable-over-current;
+	status = "okay";
+};
+
+&usbotg2 {
+	dr_mode = "host";
+	vbus-supply = <&reg_usb2_vbus>;
+	disable-over-current;
+	status = "okay";
+};
+
+/* MicroSD */
+&usdhc1 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
+	vmmc-supply = <&reg_3v3>;
+	bus-width = <4>;
+	keep-power-in-suspend;
+	non-removable;
+	wakeup-source;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl_can: can-grp {
+		fsl,pins = <
+			MX6UL_PAD_UART3_RTS_B__FLEXCAN1_RX	0x1b020
+			MX6UL_PAD_UART3_CTS_B__FLEXCAN1_TX	0x1b020
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_PIXCLK__I2C1_SCL		0x4001b8b0
+			MX6UL_PAD_CSI_MCLK__I2C1_SDA		0x4001b8b0
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO00__I2C2_SCL		0x4001b8b0
+			MX6UL_PAD_GPIO1_IO01__I2C2_SDA		0x4001b8b0
+		>;
+	};
+
+	pinctrl_leds: ledsgrp {
+		fsl,pins = <
+			MX6UL_PAD_ENET2_RX_EN__GPIO2_IO10	0x130b0
+			MX6UL_PAD_ENET2_TX_DATA0__GPIO2_IO11	0x130b0
+		>;
+	};
+
+	pinctrl_mclk: mclkgrp {
+		fsl,pins = <
+			MX6UL_PAD_JTAG_TMS__CCM_CLKO1		0x13009
+		>;
+	};
+
+	pinctrl_pwm4: pwm4grp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO05__PWM4_OUT		0x110b0
+		>;
+	};
+
+	pinctrl_pwm8: pwm8grp {
+		fsl,pins = <
+			MX6UL_PAD_ENET1_RX_ER__PWM8_OUT		0x110b0
+		>;
+	};
+
+	pinctrl_sai2: sai2grp {
+		fsl,pins = <
+			MX6UL_PAD_JTAG_TCK__SAI2_RX_DATA	0x130b0
+			MX6UL_PAD_JTAG_TDI__SAI2_TX_BCLK	0x17088
+			MX6UL_PAD_JTAG_TDO__SAI2_TX_SYNC	0x17088
+			MX6UL_PAD_JTAG_TRST_B__SAI2_TX_DATA	0x120b0
+		>;
+	};
+
+	pinctrl_touchscreen: touchgrp {
+		fsl,pins = <
+			MX6UL_PAD_ENET2_TX_CLK__GPIO2_IO14	0x17059
+			MX6UL_PAD_ENET2_RX_DATA0__GPIO2_IO08	0x17059
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX6UL_PAD_UART4_TX_DATA__UART4_DCE_TX	0x0b0b0
+			MX6UL_PAD_UART4_RX_DATA__UART4_DCE_RX	0x0b0b0
+		>;
+	};
+
+	pinctrl_usdhc1: usdhc1grp {
+		fsl,pins = <
+			MX6UL_PAD_SD1_CMD__USDHC1_CMD		0x17059
+			MX6UL_PAD_SD1_CLK__USDHC1_CLK		0x10059
+			MX6UL_PAD_SD1_DATA0__USDHC1_DATA0	0x17059
+			MX6UL_PAD_SD1_DATA1__USDHC1_DATA1	0x17059
+			MX6UL_PAD_SD1_DATA2__USDHC1_DATA2	0x17059
+			MX6UL_PAD_SD1_DATA3__USDHC1_DATA3	0x17059
+		>;
+	};
+
+	pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
+		fsl,pins = <
+			MX6UL_PAD_SD1_CMD__USDHC1_CMD		0x170b9
+			MX6UL_PAD_SD1_CLK__USDHC1_CLK		0x100b9
+			MX6UL_PAD_SD1_DATA0__USDHC1_DATA0	0x170b9
+			MX6UL_PAD_SD1_DATA1__USDHC1_DATA1	0x170b9
+			MX6UL_PAD_SD1_DATA2__USDHC1_DATA2	0x170b9
+			MX6UL_PAD_SD1_DATA3__USDHC1_DATA3	0x170b9
+		>;
+	};
+
+	pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
+		fsl,pins = <
+			MX6UL_PAD_SD1_CMD__USDHC1_CMD		0x170f9
+			MX6UL_PAD_SD1_CLK__USDHC1_CLK		0x100f9
+			MX6UL_PAD_SD1_DATA0__USDHC1_DATA0	0x170f9
+			MX6UL_PAD_SD1_DATA1__USDHC1_DATA1	0x170f9
+			MX6UL_PAD_SD1_DATA2__USDHC1_DATA2	0x170f9
+			MX6UL_PAD_SD1_DATA3__USDHC1_DATA3	0x170f9
+		>;
+	};
+};
+
+&iomuxc_snvs {
+	pinctrl_reg_usb1: regusb1grp {
+		fsl,pins = <
+			MX6ULL_PAD_SNVS_TAMPER0__GPIO5_IO00	0x17059
+		>;
+	};
+
+	pinctrl_reg_usb2: regusb2grp {
+		fsl,pins = <
+			MX6ULL_PAD_SNVS_TAMPER3__GPIO5_IO03	0x17059
+		>;
+	};
+
+	pinctrl_reg_ext_pwr: reg-ext-pwrgrp {
+		fsl,pins = <
+			MX6ULL_PAD_SNVS_TAMPER6__GPIO5_IO06	0x17059
+		>;
+	};
+};