ARM: dts: imx6dl: Add support for Sielaff i.MX6 Solo board

The Sielaff i.MX6 Solo board is used as controller and user interface
in vending machines. It is based on the i.MX6 Solo SoC and features
the following peripherals and interfaces:

* 512 MB DDR3 RAM
* 512 MB NAND Flash
* 1 MB NOR Flash
* SD card
* Debug LED
* Debug UART
* Key Inputs
* RTC
* RS232
* 100 MBit Ethernet
* USB Hub
* USB OTG
* HDMI
* 7" LVDS IPS panel
* PWM Backlight
* Optional Extension Board with USB Ethernet NIC

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

2 files changed, 534 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile
index a724d1a7a9a0..c32e004e7610 100644
--- a/arch/arm/boot/dts/nxp/imx/Makefile
+++ b/arch/arm/boot/dts/nxp/imx/Makefile
@@ -118,6 +118,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
 	imx6dl-sabrelite.dtb \
 	imx6dl-sabresd.dtb \
 	imx6dl-savageboard.dtb \
+	imx6dl-sielaff.dtb \
 	imx6dl-skov-revc-lt2.dtb \
 	imx6dl-skov-revc-lt6.dtb \
 	imx6dl-solidsense.dtb \
diff --git a/arch/arm/boot/dts/nxp/imx/imx6dl-sielaff.dts b/arch/arm/boot/dts/nxp/imx/imx6dl-sielaff.dts
new file mode 100644
index 000000000000..7de8d5f26518
--- /dev/null
+++ b/arch/arm/boot/dts/nxp/imx/imx6dl-sielaff.dts
@@ -0,0 +1,533 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2022 Kontron Electronics GmbH
+ */
+
+/dts-v1/;
+
+#include "imx6dl.dtsi"
+#include <dt-bindings/clock/imx6qdl-clock.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Sielaff i.MX6 Solo";
+	compatible = "sielaff,imx6dl-board", "fsl,imx6dl";
+
+	chosen {
+		stdout-path = &uart2;
+	};
+
+	backlight: pwm-backlight {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_backlight>;
+		pwms = <&pwm3 0 50000 0>;
+		brightness-levels = <0 0 64 88 112 136 184 232 255>;
+		default-brightness-level = <4>;
+		enable-gpios = <&gpio6 16 GPIO_ACTIVE_HIGH>;
+		power-supply = <&reg_backlight>;
+	};
+
+	cec {
+		compatible = "cec-gpio";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_hdmi_cec>;
+		cec-gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
+		hdmi-phandle = <&hdmi>;
+	};
+
+	enet_ref: clock-enet-ref {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <50000000>;
+		clock-output-names = "enet-ref";
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_keys>;
+
+		key-0 {
+			gpios = <&gpio2 16 0>;
+			debounce-interval = <10>;
+			linux,code = <1>;
+		};
+
+		key-1 {
+			gpios = <&gpio3 27 0>;
+			debounce-interval = <10>;
+			linux,code = <2>;
+		};
+
+		key-2 {
+			gpios = <&gpio5 4 0>;
+			debounce-interval = <10>;
+			linux,code = <3>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_leds>;
+
+		led-debug {
+			label = "debug-led";
+			gpios = <&gpio5 21 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	memory@80000000 {
+		reg = <0x80000000 0x20000000>;
+		device_type = "memory";
+	};
+
+	osc_eth_phy: clock-osc-eth-phy {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <25000000>;
+		clock-output-names = "osc-eth-phy";
+	};
+
+	panel {
+		compatible = "lg,lb070wv8";
+		backlight = <&backlight>;
+		power-supply = <&reg_3v3>;
+
+		port {
+			panel_in_lvds: endpoint {
+				remote-endpoint = <&lvds_out>;
+			};
+		};
+	};
+
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_backlight: regulator-backlight {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_backlight>;
+		enable-active-high;
+		gpio = <&gpio1 23 GPIO_ACTIVE_HIGH>;
+		regulator-name = "backlight";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	reg_usb_otg_vbus: regulator-usb-otg-vbus {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_reg_usbotg_vbus>;
+		enable-active-high;
+		gpio = <&gpio4 15 GPIO_ACTIVE_HIGH>;
+		regulator-name = "usb_otg_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+};
+
+&ecspi2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2>;
+	cs-gpios = <&gpio5 29 GPIO_ACTIVE_LOW>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+	};
+};
+
+&fec {
+	/*
+	 * Set PTP clock to external instead of internal reference, as the
+	 * REF_CLK from the PHY is fed back into the i.MX6 and the GPR
+	 * register needs to be set accordingly (see mach-imx6q.c).
+	 */
+	clocks = <&clks IMX6QDL_CLK_ENET>,
+		 <&clks IMX6QDL_CLK_ENET>,
+		 <&enet_ref>,
+		 <&clks IMX6QDL_CLK_ENET_REF>;
+	clock-names = "ipg", "ahb", "ptp", "enet_out";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet>;
+	phy-connection-type = "rmii";
+	phy-handle = <&ethphy>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy: ethernet-phy@1 {
+			reg = <1>;
+			clocks = <&osc_eth_phy>;
+			clock-names = "rmii-ref";
+			micrel,led-mode = <1>;
+			reset-assert-us = <500>;
+			reset-deassert-us = <100>;
+			reset-gpios = <&gpio5 2 GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&gpio1 {
+	gpio-line-names =
+		"", "", "", "", "", "", "", "",
+		"", "", "", "", "", "", "key-out", "key-in",
+		"", "", "", "", "", "", "", "",
+		"", "", "", "", "", "", "", "";
+};
+
+&gpio2 {
+	gpio-line-names =
+		"", "", "", "", "", "", "", "",
+		"lan9500a-rst", "", "", "", "", "", "", "",
+		"", "", "", "", "", "", "", "",
+		"", "", "", "", "", "", "", "";
+};
+
+&gpmi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_gpmi_nand>;
+	status = "okay";
+};
+
+&hdmi {
+	ddc-i2c-bus = <&i2c4>;
+	status = "okay";
+};
+
+&i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	rtc@51 {
+		compatible = "nxp,pcf8563";
+		reg = <0x51>;
+	};
+};
+
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	clock-frequency = <100000>;
+	status = "okay";
+
+	touchscreen@55 {
+		compatible = "sitronix,st1633";
+		reg = <0x55>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_touch>;
+		interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-parent = <&gpio5>;
+		gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
+		status = "disabled";
+	};
+
+	touchscreen@5d {
+		compatible = "goodix,gt928";
+		reg = <0x5d>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_touch>;
+		interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-parent = <&gpio5>;
+		irq-gpios = <&gpio5 18 GPIO_ACTIVE_HIGH>;
+		reset-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+		status = "disabled";
+	};
+};
+
+&i2c4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	clock-frequency = <100000>;
+	status = "okay";
+};
+
+&ldb {
+	status = "okay";
+
+	lvds: lvds-channel@0 {
+		fsl,data-mapping = "spwg";
+		fsl,data-width = <24>;
+		status = "okay";
+
+		port@4 {
+			reg = <4>;
+
+			lvds_out: endpoint {
+				remote-endpoint = <&panel_in_lvds>;
+			};
+		};
+	};
+};
+
+&pwm3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm3>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	status = "okay";
+};
+
+&usbh1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbh1>;
+	disable-over-current;
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	usb1@1 {
+		compatible = "usb4b4,6570";
+		reg = <1>;
+		clocks = <&clks IMX6QDL_CLK_CKO>;
+
+		assigned-clocks = <&clks IMX6QDL_CLK_CKO>,
+				  <&clks IMX6QDL_CLK_CKO2_SEL>;
+		assigned-clock-parents = <&clks IMX6QDL_CLK_CKO2>,
+					 <&clks IMX6QDL_CLK_OSC>;
+		assigned-clock-rates = <12000000 0>;
+	};
+};
+
+&usbotg {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg>;
+	dr_mode = "host";
+	over-current-active-low;
+	vbus-supply = <&reg_usb_otg_vbus>;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3>;
+	cd-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
+	vmmc-supply = <&reg_3v3>;
+	voltage-ranges = <3300 3300>;
+	no-1-8-v;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	pinctrl_hog: hoggrp {
+		fsl,pins = <
+			MX6QDL_PAD_RGMII_RD0__GPIO6_IO25	0x1b0b0	/* PMIC_IRQ */
+			MX6QDL_PAD_SD2_DAT3__GPIO1_IO12		0x1b0b0
+			MX6QDL_PAD_SD2_DAT1__GPIO1_IO14		0x1b0b0
+			MX6QDL_PAD_SD2_DAT0__GPIO1_IO15		0x1b0b0
+			MX6QDL_PAD_SD4_DAT0__GPIO2_IO08		0x1b0b0
+			MX6QDL_PAD_EIM_D29__GPIO3_IO29		0x1b0b0
+		>;
+	};
+
+	pinctrl_backlight: backlightgrp {
+		fsl,pins = <
+			MX6QDL_PAD_NANDF_CS3__GPIO6_IO16	0x100b1
+		>;
+	};
+
+	pinctrl_ecspi2: ecspi2grp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_DAT10__ECSPI2_MISO	0x100b1
+			MX6QDL_PAD_CSI0_DAT9__ECSPI2_MOSI	0x100b1
+			MX6QDL_PAD_CSI0_DAT8__ECSPI2_SCLK	0x100b1
+			MX6QDL_PAD_CSI0_DAT11__GPIO5_IO29	0x100b1
+		>;
+	};
+
+	pinctrl_enet: enetgrp {
+		fsl,pins = <
+			MX6QDL_PAD_ENET_MDIO__ENET_MDIO		0x1b0b0
+			MX6QDL_PAD_ENET_MDC__ENET_MDC		0x1b0b0
+			MX6QDL_PAD_ENET_RXD0__ENET_RX_DATA0	0x1b0b0
+			MX6QDL_PAD_ENET_RXD1__ENET_RX_DATA1	0x1b0b0
+			MX6QDL_PAD_ENET_CRS_DV__ENET_RX_EN	0x1b0b0
+			MX6QDL_PAD_ENET_RX_ER__ENET_RX_ER	0x1b0b0
+			MX6QDL_PAD_ENET_TXD0__ENET_TX_DATA0	0x1b0b0
+			MX6QDL_PAD_ENET_TXD1__ENET_TX_DATA1	0x1b0b0
+			MX6QDL_PAD_ENET_TX_EN__ENET_TX_EN	0x1b0b0
+			MX6QDL_PAD_GPIO_16__ENET_REF_CLK	0x4001b0a8
+			MX6QDL_PAD_EIM_A25__GPIO5_IO02		0x100b1
+		>;
+	};
+
+	pinctrl_gpio_keys: gpiokeysgrp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_A22__GPIO2_IO16		0x1b080
+			MX6QDL_PAD_EIM_D27__GPIO3_IO27		0x1b080
+			MX6QDL_PAD_EIM_A24__GPIO5_IO04		0x1b080
+		>;
+	};
+
+	pinctrl_gpio_leds: gpioledsgrp {
+		fsl,pins = <
+			MX6QDL_PAD_CSI0_VSYNC__GPIO5_IO21	0x1b0b0
+		>;
+	};
+
+	pinctrl_gpmi_nand: gpminandgrp {
+		fsl,pins = <
+			MX6QDL_PAD_NANDF_CLE__NAND_CLE		0xb0b1
+			MX6QDL_PAD_NANDF_ALE__NAND_ALE		0xb0b1
+			MX6QDL_PAD_NANDF_WP_B__NAND_WP_B	0xb0b1
+			MX6QDL_PAD_NANDF_RB0__NAND_READY_B	0xb000
+			MX6QDL_PAD_NANDF_CS0__NAND_CE0_B	0xb0b1
+			MX6QDL_PAD_SD4_CMD__NAND_RE_B		0xb0b1
+			MX6QDL_PAD_SD4_CLK__NAND_WE_B		0xb0b1
+			MX6QDL_PAD_NANDF_D0__NAND_DATA00	0xb0b1
+			MX6QDL_PAD_NANDF_D1__NAND_DATA01	0xb0b1
+			MX6QDL_PAD_NANDF_D2__NAND_DATA02	0xb0b1
+			MX6QDL_PAD_NANDF_D3__NAND_DATA03	0xb0b1
+			MX6QDL_PAD_NANDF_D4__NAND_DATA04	0xb0b1
+			MX6QDL_PAD_NANDF_D5__NAND_DATA05	0xb0b1
+			MX6QDL_PAD_NANDF_D6__NAND_DATA06	0xb0b1
+			MX6QDL_PAD_NANDF_D7__NAND_DATA07	0xb0b1
+		>;
+	};
+
+	pinctrl_hdmi_cec: hdmicecgrp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_A21__GPIO2_IO17		0x1b8b1
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL3__I2C2_SCL		0x4001b8b1
+			MX6QDL_PAD_KEY_ROW3__I2C2_SDA		0x4001b8b1
+		>;
+	};
+
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_5__I2C3_SCL		0x4001f8b1
+			MX6QDL_PAD_GPIO_6__I2C3_SDA		0x4001f8b1
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_7__I2C4_SCL		0x4001b8b1
+			MX6QDL_PAD_GPIO_8__I2C4_SDA		0x4001b8b1
+		>;
+	};
+
+	pinctrl_pwm3: pwm3grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD4_DAT1__PWM3_OUT		0x1b0b1
+		>;
+	};
+
+	pinctrl_reg_backlight: regbacklightgrp {
+		fsl,pins = <
+			MX6QDL_PAD_ENET_REF_CLK__GPIO1_IO23	0x1b0b1
+		>;
+	};
+
+	pinctrl_reg_usbotg_vbus: regusbotgvbusgrp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_ROW4__GPIO4_IO15		0x1b0b1
+		>;
+	};
+
+	pinctrl_touch: touchgrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_2__GPIO1_IO02		0x1b0b0
+			MX6QDL_PAD_CSI0_PIXCLK__GPIO5_IO18	0x1b0b0
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_DAT7__UART1_TX_DATA 	0x1b0b1
+			MX6QDL_PAD_SD3_DAT6__UART1_RX_DATA 	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD4_DAT7__UART2_TX_DATA	0x1b0b1
+			MX6QDL_PAD_SD4_DAT4__UART2_RX_DATA	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX6QDL_PAD_EIM_D24__UART3_TX_DATA	0x1b0b0
+			MX6QDL_PAD_EIM_D25__UART3_RX_DATA	0x1b0b0
+		>;
+	};
+
+	pinctrl_usbh1: usbh1grp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_3__USB_H1_OC		0x1b0b1
+			MX6QDL_PAD_CSI0_MCLK__CCM_CLKO1		0x1b0b0
+		>;
+	};
+
+	pinctrl_usbotg: usbotggrp {
+		fsl,pins = <
+			MX6QDL_PAD_KEY_COL4__USB_OTG_OC		0x1b0b1
+		>;
+	};
+
+	pinctrl_usdhc3: usdhc3grp {
+		fsl,pins = <
+			MX6QDL_PAD_SD3_CMD__SD3_CMD		0x17059
+			MX6QDL_PAD_SD3_CLK__SD3_CLK		0x10059
+			MX6QDL_PAD_SD3_DAT0__SD3_DATA0		0x17059
+			MX6QDL_PAD_SD3_DAT1__SD3_DATA1		0x17059
+			MX6QDL_PAD_SD3_DAT2__SD3_DATA2		0x17059
+			MX6QDL_PAD_SD3_DAT3__SD3_DATA3		0x17059
+			MX6QDL_PAD_GPIO_4__GPIO1_IO04		0x100b1
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX6QDL_PAD_GPIO_9__WDOG1_B		0x1b0b0
+		>;
+	};
+};