imx: imx6ul: Add support for Kontron Electronics SL/BL i.MX6UL/ULL boards (N63xx/N64xx)

This adds support for i.MX6UL/ULL-based evaluation kits with SoMs by
Kontron Electronics GmbH.

Currently there are the following SoM flavors (SoM-Line):
  * N6310: SOM with i.MX6UL-2, 256MB RAM, 256MB SPI NAND
  * N6311: SOM with i.MX6UL-2, 512MB RAM, 512MB SPI NAND
  * N6411: SOM with i.MX6ULL, 512MB RAM, 512MB SPI NAND

And the according evaluation boards (Board-Line):
  * N6310-S: Baseboard with SOM N6310, eMMC, display (optional), ...
  * N6311-S: Baseboard with SOM N6311, eMMC, display (optional), ...
  * N6411-S: Baseboard with SOM N6411, eMMC, display (optional), ...

Currently U-Boot describes i.MX6UL and i.MX6ULL through separate config
options at compile-time. Though the differences are so minor, that for
the scope of these SoMs we just use a single defconfig that is compatible
with both SoCs.
Signed-off-by: NFrieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: NStefano Babic <sbabic@denx.de>

arch/arm/dts/Makefile

@@ -815,7 +815,9 @@ dtb-$(CONFIG_MX6UL) += \
 	imx6ul-liteboard.dtb \
 	imx6ul-phytec-segin-ff-rdk-nand.dtb \
 	imx6ul-pico-hobbit.dtb \
-	imx6ul-pico-pi.dtb
+	imx6ul-pico-pi.dtb \
+	imx6ul-kontron-n631x-s.dtb \
+	imx6ull-kontron-n641x-s.dtb
 
 dtb-$(CONFIG_MX6ULL) += \
 	imx6ull-14x14-evk.dtb \

arch/arm/dts/imx6ul-kontron-n631x-s-u-boot.dtsi

+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ */
+
+#include "imx6ul-kontron-n6x1x-s-u-boot.dtsi"

arch/arm/dts/imx6ul-kontron-n631x-s.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ * Copyright (c) 2019 Krzysztof Kozlowski <krzk@kernel.org>
+ */
+
+/dts-v1/;
+
+#include "imx6ul-kontron-n631x-som.dtsi"
+#include "imx6ul-kontron-n6x1x-s.dtsi"
+
+/ {
+	model = "Kontron N631X S";
+	compatible = "kontron,imx6ul-n631x-s", "kontron,imx6ul-n631x-som",
+		     "fsl,imx6ul";
+};

arch/arm/dts/imx6ul-kontron-n631x-som.dtsi

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ * Copyright (c) 2019 Krzysztof Kozlowski <krzk@kernel.org>
+ */
+
+#include "imx6ul.dtsi"
+#include "imx6ul-kontron-n6x1x-som-common.dtsi"
+
+/ {
+	model = "Kontron N631X SOM";
+	compatible = "kontron,imx6ul-n631x-som", "fsl,imx6ul";
+};

arch/arm/dts/imx6ul-kontron-n6x1x-s-u-boot.dtsi

+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ */
+
+#if defined(CONFIG_FIT)
+
+/ {
+	binman: binman {
+		filename = "flash.bin";
+		pad-byte = <0x00>;
+
+		spl: blob-ext@1 {
+			offset = <0x0>;
+			filename = "SPL";
+		};
+
+		uboot: blob-ext@2 {
+			offset = <0x11000>;
+			filename = "u-boot.img";
+		};
+	};
+};
+
+#endif /* CONFIG_FIT */
+
+/*
+ * To make the PHYs work, we need to set the reset pin once. Afterwards
+ * in Linux we can't assign the shared reset GPIO to the PHYs, as this
+ * would cause Linux to reset both PHYs every time one of them gets
+ * reinitialized.
+ *
+ * Also we disable the second ethernet as it currently doesn't work with
+ * the devicetree setup in U-Boot.
+ */
+
+&fec1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet1 &pinctrl_enet1_mdio>;
+	phy-mode = "rmii";
+	phy-handle = <&ethphy1>;
+	phy-reset-gpios = <&gpio5 9 GPIO_ACTIVE_HIGH>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy1: ethernet-phy@1 {
+			reg = <1>;
+			micrel,led-mode = <0>;
+			clocks = <&clks IMX6UL_CLK_ENET_REF>;
+			clock-names = "rmii-ref";
+		};
+	};
+};
+
+&fec2 {
+	status = "disabled";
+	/delete-property/ phy-handle;
+	/delete-node/ mdio;
+};

arch/arm/dts/imx6ul-kontron-n6x1x-s.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ * Copyright (c) 2019 Krzysztof Kozlowski <krzk@kernel.org>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include "imx6ul-kontron-n6x1x-som.dtsi"
+
+/ {
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_leds>;
+
+		led1 {
+			label = "debug-led1";
+			gpios = <&gpio1 30 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "heartbeat";
+		};
+
+		led2 {
+			label = "debug-led2";
+			gpios = <&gpio5 3 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led3 {
+			label = "debug-led3";
+			gpios = <&gpio5 2 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+
+	pwm-beeper {
+		compatible = "pwm-beeper";
+		pwms = <&pwm8 0 5000>;
+	};
+
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_5v: regulator-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "5v";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_usb_otg1_vbus: regulator-usb-otg1-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_otg1_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio1 4 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_vref_adc: regulator-vref-adc {
+		compatible = "regulator-fixed";
+		regulator-name = "vref-adc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+};
+
+&adc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc1>;
+	num-channels = <3>;
+	vref-supply = <&reg_vref_adc>;
+	status = "okay";
+};
+
+&can2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan2>;
+	status = "okay";
+};
+
+&ecspi1 {
+	cs-gpios = <&gpio4 26 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi1>;
+	status = "okay";
+
+	eeprom@0 {
+		compatible = "anvo,anv32e61w", "atmel,at25";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+		spi-cpha;
+		spi-cpol;
+		pagesize = <1>;
+		size = <8192>;
+		address-width = <16>;
+	};
+};
+
+&fec1 {
+	pinctrl-0 = <&pinctrl_enet1>;
+	/delete-node/ mdio;
+};
+
+&fec2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet2 &pinctrl_enet2_mdio>;
+	phy-mode = "rmii";
+	phy-handle = <&ethphy2>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy1: ethernet-phy@1 {
+			reg = <1>;
+			micrel,led-mode = <0>;
+			clocks = <&clks IMX6UL_CLK_ENET_REF>;
+			clock-names = "rmii-ref";
+		};
+
+		ethphy2: ethernet-phy@2 {
+			reg = <2>;
+			micrel,led-mode = <0>;
+			clocks = <&clks IMX6UL_CLK_ENET2_REF>;
+			clock-names = "rmii-ref";
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+};
+
+&i2c4 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	status = "okay";
+
+	rtc@32 {
+		compatible = "epson,rx8900";
+		reg = <0x32>;
+	};
+};
+
+&pwm8 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm8>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	linux,rs485-enabled-at-boot-time;
+	rs485-rx-during-tx;
+	rs485-rts-active-low;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	fsl,uart-has-rtscts;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&usbotg1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg1>;
+	dr_mode = "otg";
+	srp-disable;
+	hnp-disable;
+	adp-disable;
+	over-current-active-low;
+	vbus-supply = <&reg_usb_otg1_vbus>;
+	status = "okay";
+};
+
+&usbotg2 {
+	dr_mode = "host";
+	disable-over-current;
+	vbus-supply = <&reg_5v>;
+	status = "okay";
+};
+
+&usdhc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
+	keep-power-in-suspend;
+	wakeup-source;
+	vmmc-supply = <&reg_3v3>;
+	voltage-ranges = <3300 3300>;
+	bus-width = <4>;
+	no-1-8-v;
+	status = "okay";
+};
+
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+	non-removable;
+	keep-power-in-suspend;
+	wakeup-source;
+	vmmc-supply = <&reg_3v3>;
+	voltage-ranges = <3300 3300>;
+	bus-width = <4>;
+	no-1-8-v;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-0 = <&pinctrl_reset_out &pinctrl_gpio>;
+
+	pinctrl_adc1: adc1grp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO02__GPIO1_IO02	0xb0
+			MX6UL_PAD_GPIO1_IO03__GPIO1_IO03	0xb0
+			MX6UL_PAD_GPIO1_IO08__GPIO1_IO08	0xb0
+		>;
+	};
+
+	pinctrl_ecspi1: ecspi1grp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_DATA07__ECSPI1_MISO	0x100b1
+			MX6UL_PAD_CSI_DATA06__ECSPI1_MOSI	0x100b1
+			MX6UL_PAD_CSI_DATA04__ECSPI1_SCLK	0x100b1
+			MX6UL_PAD_CSI_DATA05__GPIO4_IO26	0x100b1	/* ECSPI1-CS1 */
+		>;
+	};
+
+	pinctrl_enet2: enet2grp {
+		fsl,pins = <
+			MX6UL_PAD_ENET2_RX_EN__ENET2_RX_EN	0x1b0b0
+			MX6UL_PAD_ENET2_RX_ER__ENET2_RX_ER	0x1b0b0
+			MX6UL_PAD_ENET2_RX_DATA0__ENET2_RDATA00	0x1b0b0
+			MX6UL_PAD_ENET2_RX_DATA1__ENET2_RDATA01	0x1b0b0
+			MX6UL_PAD_ENET2_TX_EN__ENET2_TX_EN	0x1b0b0
+			MX6UL_PAD_ENET2_TX_DATA0__ENET2_TDATA00	0x1b0b0
+			MX6UL_PAD_ENET2_TX_DATA1__ENET2_TDATA01	0x1b0b0
+			MX6UL_PAD_ENET2_TX_CLK__ENET2_REF_CLK2	0x4001b009
+		>;
+	};
+
+	pinctrl_enet2_mdio: enet2mdiogrp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO07__ENET2_MDC		0x1b0b0
+			MX6UL_PAD_GPIO1_IO06__ENET2_MDIO	0x1b0b0
+		>;
+	};
+
+	pinctrl_flexcan2: flexcan2grp{
+		fsl,pins = <
+			MX6UL_PAD_UART2_RTS_B__FLEXCAN2_RX	0x1b020
+			MX6UL_PAD_UART2_CTS_B__FLEXCAN2_TX	0x1b020
+		>;
+	};
+
+	pinctrl_gpio: gpiogrp {
+		fsl,pins = <
+			MX6UL_PAD_SNVS_TAMPER5__GPIO5_IO05	0x1b0b0	/* DOUT1 */
+			MX6UL_PAD_SNVS_TAMPER4__GPIO5_IO04	0x1b0b0	/* DIN1 */
+			MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01	0x1b0b0	/* DOUT2 */
+			MX6UL_PAD_SNVS_TAMPER0__GPIO5_IO00	0x1b0b0	/* DIN2 */
+		>;
+	};
+
+	pinctrl_gpio_leds: gpioledsgrp {
+		fsl,pins = <
+			MX6UL_PAD_UART5_TX_DATA__GPIO1_IO30	0x1b0b0	/* LED H14 */
+			MX6UL_PAD_SNVS_TAMPER3__GPIO5_IO03	0x1b0b0	/* LED H15 */
+			MX6UL_PAD_SNVS_TAMPER2__GPIO5_IO02	0x1b0b0	/* LED H16 */
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_PIXCLK__I2C1_SCL		0x4001b8b0
+			MX6UL_PAD_CSI_MCLK__I2C1_SDA		0x4001b8b0
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX6UL_PAD_UART2_TX_DATA__I2C4_SCL	0x4001f8b0
+			MX6UL_PAD_UART2_RX_DATA__I2C4_SDA	0x4001f8b0
+		>;
+	};
+
+	pinctrl_pwm8: pwm8grp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_HSYNC__PWM8_OUT		0x110b0
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_DATA04__UART2_DCE_TX	0x1b0b1
+			MX6UL_PAD_NAND_DATA05__UART2_DCE_RX	0x1b0b1
+			MX6UL_PAD_NAND_DATA06__UART2_DCE_CTS	0x1b0b1
+			/*
+			 * mux unused RTS to make sure it doesn't cause
+			 * any interrupts when it is undefined
+			 */
+			MX6UL_PAD_NAND_DATA07__UART2_DCE_RTS	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX6UL_PAD_UART3_TX_DATA__UART3_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART3_RX_DATA__UART3_DCE_RX	0x1b0b1
+			MX6UL_PAD_UART3_CTS_B__UART3_DCE_CTS	0x1b0b1
+			MX6UL_PAD_UART3_RTS_B__UART3_DCE_RTS	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX6UL_PAD_UART4_TX_DATA__UART4_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART4_RX_DATA__UART4_DCE_RX	0x1b0b1
+		>;
+	};
+
+	pinctrl_usbotg1: usbotg1 {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO04__GPIO1_IO04	0x1b0b0
+		>;
+	};
+
+	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
+			MX6UL_PAD_UART1_RTS_B__GPIO1_IO19	0x100b1	/* SD1_CD */
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x10059
+			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x17059
+			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x17059
+			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x17059
+			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x17059
+			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x17059
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x100b9
+			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x170b9
+			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x170b9
+			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x170b9
+			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x170b9
+			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x170b9
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x100f9
+			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x170f9
+			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x170f9
+			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x170f9
+			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x170f9
+			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x170f9
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO09__WDOG1_WDOG_ANY	0x30b0
+		>;
+	};
+};

arch/arm/dts/imx6ul-kontron-n6x1x-s.dtsi

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ * Copyright (c) 2019 Krzysztof Kozlowski <krzk@kernel.org>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_gpio_leds>;
+
+		led1 {
+			label = "debug-led1";
+			gpios = <&gpio1 30 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+			linux,default-trigger = "heartbeat";
+		};
+
+		led2 {
+			label = "debug-led2";
+			gpios = <&gpio5 3 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led3 {
+			label = "debug-led3";
+			gpios = <&gpio5 2 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+	};
+
+	pwm-beeper {
+		compatible = "pwm-beeper";
+		pwms = <&pwm8 0 5000>;
+	};
+
+	reg_3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	reg_5v: regulator-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "5v";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_usb_otg1_vbus: regulator-usb-otg1-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb_otg1_vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&gpio1 4 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	reg_vref_adc: regulator-vref-adc {
+		compatible = "regulator-fixed";
+		regulator-name = "vref-adc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+};
+
+&adc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc1>;
+	num-channels = <3>;
+	vref-supply = <&reg_vref_adc>;
+	status = "okay";
+};
+
+&can2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan2>;
+	status = "okay";
+};
+
+&ecspi1 {
+	cs-gpios = <&gpio4 26 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi1>;
+	status = "okay";
+
+	eeprom@0 {
+		compatible = "anvo,anv32e61w", "atmel,at25";
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+		spi-cpha;
+		spi-cpol;
+		pagesize = <1>;
+		size = <8192>;
+		address-width = <16>;
+	};
+};
+
+&fec1 {
+	pinctrl-0 = <&pinctrl_enet1>;
+	/delete-node/ mdio;
+};
+
+&fec2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet2 &pinctrl_enet2_mdio>;
+	phy-mode = "rmii";
+	phy-handle = <&ethphy2>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy1: ethernet-phy@1 {
+			reg = <1>;
+			micrel,led-mode = <0>;
+			clocks = <&clks IMX6UL_CLK_ENET_REF>;
+			clock-names = "rmii-ref";
+		};
+
+		ethphy2: ethernet-phy@2 {
+			reg = <2>;
+			micrel,led-mode = <0>;
+			clocks = <&clks IMX6UL_CLK_ENET2_REF>;
+			clock-names = "rmii-ref";
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1>;
+	status = "okay";
+};
+
+&i2c4 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	status = "okay";
+
+	rtc@32 {
+		compatible = "epson,rx8900";
+		reg = <0x32>;
+	};
+};
+
+&pwm8 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm8>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	linux,rs485-enabled-at-boot-time;
+	rs485-rx-during-tx;
+	rs485-rts-active-low;
+	uart-has-rtscts;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>;
+	fsl,uart-has-rtscts;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart4>;
+	status = "okay";
+};
+
+&usbotg1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg1>;
+	dr_mode = "otg";
+	srp-disable;
+	hnp-disable;
+	adp-disable;
+	over-current-active-low;
+	vbus-supply = <&reg_usb_otg1_vbus>;
+	status = "okay";
+};
+
+&usbotg2 {
+	dr_mode = "host";
+	disable-over-current;
+	vbus-supply = <&reg_5v>;
+	status = "okay";
+};
+
+&usdhc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
+	keep-power-in-suspend;
+	wakeup-source;
+	vmmc-supply = <&reg_3v3>;
+	voltage-ranges = <3300 3300>;
+	bus-width = <4>;
+	no-1-8-v;
+	status = "okay";
+};
+
+&usdhc2 {
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+	non-removable;
+	keep-power-in-suspend;
+	wakeup-source;
+	vmmc-supply = <&reg_3v3>;
+	voltage-ranges = <3300 3300>;
+	bus-width = <4>;
+	no-1-8-v;
+	status = "okay";
+};
+
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-0 = <&pinctrl_reset_out &pinctrl_gpio>;
+
+	pinctrl_adc1: adc1grp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO02__GPIO1_IO02	0xb0
+			MX6UL_PAD_GPIO1_IO03__GPIO1_IO03	0xb0
+			MX6UL_PAD_GPIO1_IO08__GPIO1_IO08	0xb0
+		>;
+	};
+
+	pinctrl_ecspi1: ecspi1grp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_DATA07__ECSPI1_MISO	0x100b1
+			MX6UL_PAD_CSI_DATA06__ECSPI1_MOSI	0x100b1
+			MX6UL_PAD_CSI_DATA04__ECSPI1_SCLK	0x100b1
+			MX6UL_PAD_CSI_DATA05__GPIO4_IO26	0x100b1	/* ECSPI1-CS1 */
+		>;
+	};
+
+	pinctrl_enet2: enet2grp {
+		fsl,pins = <
+			MX6UL_PAD_ENET2_RX_EN__ENET2_RX_EN	0x1b0b0
+			MX6UL_PAD_ENET2_RX_ER__ENET2_RX_ER	0x1b0b0
+			MX6UL_PAD_ENET2_RX_DATA0__ENET2_RDATA00	0x1b0b0
+			MX6UL_PAD_ENET2_RX_DATA1__ENET2_RDATA01	0x1b0b0
+			MX6UL_PAD_ENET2_TX_EN__ENET2_TX_EN	0x1b0b0
+			MX6UL_PAD_ENET2_TX_DATA0__ENET2_TDATA00	0x1b0b0
+			MX6UL_PAD_ENET2_TX_DATA1__ENET2_TDATA01	0x1b0b0
+			MX6UL_PAD_ENET2_TX_CLK__ENET2_REF_CLK2	0x4001b009
+		>;
+	};
+
+	pinctrl_enet2_mdio: enet2mdiogrp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO07__ENET2_MDC		0x1b0b0
+			MX6UL_PAD_GPIO1_IO06__ENET2_MDIO	0x1b0b0
+		>;
+	};
+
+	pinctrl_flexcan2: flexcan2grp{
+		fsl,pins = <
+			MX6UL_PAD_UART2_RTS_B__FLEXCAN2_RX	0x1b020
+			MX6UL_PAD_UART2_CTS_B__FLEXCAN2_TX	0x1b020
+		>;
+	};
+
+	pinctrl_gpio: gpiogrp {
+		fsl,pins = <
+			MX6UL_PAD_SNVS_TAMPER5__GPIO5_IO05	0x1b0b0	/* DOUT1 */
+			MX6UL_PAD_SNVS_TAMPER4__GPIO5_IO04	0x1b0b0	/* DIN1 */
+			MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01	0x1b0b0	/* DOUT2 */
+			MX6UL_PAD_SNVS_TAMPER0__GPIO5_IO00	0x1b0b0	/* DIN2 */
+		>;
+	};
+
+	pinctrl_gpio_leds: gpioledsgrp {
+		fsl,pins = <
+			MX6UL_PAD_UART5_TX_DATA__GPIO1_IO30	0x1b0b0	/* LED H14 */
+			MX6UL_PAD_SNVS_TAMPER3__GPIO5_IO03	0x1b0b0	/* LED H15 */
+			MX6UL_PAD_SNVS_TAMPER2__GPIO5_IO02	0x1b0b0	/* LED H16 */
+		>;
+	};
+
+	pinctrl_i2c1: i2c1grp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_PIXCLK__I2C1_SCL		0x4001b8b0
+			MX6UL_PAD_CSI_MCLK__I2C1_SDA		0x4001b8b0
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX6UL_PAD_UART2_TX_DATA__I2C4_SCL	0x4001f8b0
+			MX6UL_PAD_UART2_RX_DATA__I2C4_SDA	0x4001f8b0
+		>;
+	};
+
+	pinctrl_pwm8: pwm8grp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_HSYNC__PWM8_OUT		0x110b0
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		fsl,pins = <
+			MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart2: uart2grp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_DATA04__UART2_DCE_TX	0x1b0b1
+			MX6UL_PAD_NAND_DATA05__UART2_DCE_RX	0x1b0b1
+			MX6UL_PAD_NAND_DATA06__UART2_DCE_CTS	0x1b0b1
+			/*
+			 * mux unused RTS to make sure it doesn't cause
+			 * any interrupts when it is undefined
+			 */
+			MX6UL_PAD_NAND_DATA07__UART2_DCE_RTS	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart3: uart3grp {
+		fsl,pins = <
+			MX6UL_PAD_UART3_TX_DATA__UART3_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART3_RX_DATA__UART3_DCE_RX	0x1b0b1
+			MX6UL_PAD_UART3_CTS_B__UART3_DCE_CTS	0x1b0b1
+			MX6UL_PAD_UART3_RTS_B__UART3_DCE_RTS	0x1b0b1
+		>;
+	};
+
+	pinctrl_uart4: uart4grp {
+		fsl,pins = <
+			MX6UL_PAD_UART4_TX_DATA__UART4_DCE_TX	0x1b0b1
+			MX6UL_PAD_UART4_RX_DATA__UART4_DCE_RX	0x1b0b1
+		>;
+	};
+
+	pinctrl_usbotg1: usbotg1 {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO04__GPIO1_IO04	0x1b0b0
+		>;
+	};
+
+	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
+			MX6UL_PAD_UART1_RTS_B__GPIO1_IO19	0x100b1	/* SD1_CD */
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x10059
+			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x17059
+			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x17059
+			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x17059
+			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x17059
+			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x17059
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x100b9
+			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x170b9
+			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x170b9
+			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x170b9
+			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x170b9
+			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x170b9
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_RE_B__USDHC2_CLK		0x100f9
+			MX6UL_PAD_NAND_WE_B__USDHC2_CMD		0x170f9
+			MX6UL_PAD_NAND_DATA00__USDHC2_DATA0	0x170f9
+			MX6UL_PAD_NAND_DATA01__USDHC2_DATA1	0x170f9
+			MX6UL_PAD_NAND_DATA02__USDHC2_DATA2	0x170f9
+			MX6UL_PAD_NAND_DATA03__USDHC2_DATA3	0x170f9
+		>;
+	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO09__WDOG1_WDOG_ANY	0x30b0
+		>;
+	};
+};

arch/arm/dts/imx6ul-kontron-n6x1x-som-common.dtsi

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ * Copyright (c) 2019 Krzysztof Kozlowski <krzk@kernel.org>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	chosen {
+		stdout-path = &uart4;
+	};
+
+	memory@80000000 {
+		reg = <0x80000000 0x10000000>;
+		device_type = "memory";
+	};
+};
+
+&ecspi2 {
+	cs-gpios = <&gpio4 22 GPIO_ACTIVE_HIGH>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi2>;
+	status = "okay";
+
+	spi-flash@0 {
+		compatible = "mxicy,mx25v8035f", "jedec,spi-nor";
+		spi-max-frequency = <50000000>;
+		reg = <0>;
+	};
+};
+
+&fec1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet1 &pinctrl_enet1_mdio>;
+	phy-mode = "rmii";
+	phy-handle = <&ethphy1>;
+	status = "okay";
+
+	mdio {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ethphy1: ethernet-phy@1 {
+			reg = <1>;
+			micrel,led-mode = <0>;
+			clocks = <&clks IMX6UL_CLK_ENET_REF>;
+			clock-names = "rmii-ref";
+		};
+	};
+};
+
+&fec2 {
+	phy-mode = "rmii";
+	status = "disabled";
+};
+
+&qspi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_qspi>;
+	status = "okay";
+
+	spi-flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spi-nand";
+		spi-max-frequency = <104000000>;
+		spi-tx-bus-width = <4>;
+		spi-rx-bus-width = <4>;
+		reg = <0>;
+	};
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_reset_out>;
+
+	pinctrl_ecspi2: ecspi2grp {
+		fsl,pins = <
+			MX6UL_PAD_CSI_DATA03__ECSPI2_MISO      0x100b1
+			MX6UL_PAD_CSI_DATA02__ECSPI2_MOSI      0x100b1
+			MX6UL_PAD_CSI_DATA00__ECSPI2_SCLK      0x100b1
+			MX6UL_PAD_CSI_DATA01__GPIO4_IO22       0x100b1
+		>;
+	};
+
+	pinctrl_enet1: enet1grp {
+		fsl,pins = <
+			MX6UL_PAD_ENET1_RX_EN__ENET1_RX_EN      0x1b0b0
+			MX6UL_PAD_ENET1_RX_ER__ENET1_RX_ER      0x1b0b0
+			MX6UL_PAD_ENET1_RX_DATA0__ENET1_RDATA00 0x1b0b0
+			MX6UL_PAD_ENET1_RX_DATA1__ENET1_RDATA01 0x1b0b0
+			MX6UL_PAD_ENET1_TX_EN__ENET1_TX_EN      0x1b0b0
+			MX6UL_PAD_ENET1_TX_DATA0__ENET1_TDATA00 0x1b0b0
+			MX6UL_PAD_ENET1_TX_DATA1__ENET1_TDATA01 0x1b0b0
+			MX6UL_PAD_ENET1_TX_CLK__ENET1_REF_CLK1  0x4001b009
+		>;
+	};
+
+	pinctrl_enet1_mdio: enet1mdiogrp {
+		fsl,pins = <
+			MX6UL_PAD_GPIO1_IO07__ENET1_MDC         0x1b0b0
+			MX6UL_PAD_GPIO1_IO06__ENET1_MDIO        0x1b0b0
+		>;
+	};
+
+	pinctrl_qspi: qspigrp {
+		fsl,pins = <
+			MX6UL_PAD_NAND_WP_B__QSPI_A_SCLK        0x70a1
+			MX6UL_PAD_NAND_READY_B__QSPI_A_DATA00   0x70a1
+			MX6UL_PAD_NAND_CE0_B__QSPI_A_DATA01     0x70a1
+			MX6UL_PAD_NAND_CE1_B__QSPI_A_DATA02     0x70a1
+			MX6UL_PAD_NAND_CLE__QSPI_A_DATA03       0x70a1
+			MX6UL_PAD_NAND_DQS__QSPI_A_SS0_B        0x70a1
+		>;
+	};
+
+	pinctrl_reset_out: rstoutgrp {
+		fsl,pins = <
+			MX6UL_PAD_SNVS_TAMPER9__GPIO5_IO09      0x1b0b0
+		>;
+	};
+};

arch/arm/dts/imx6ull-kontron-n641x-s-u-boot.dtsi

+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ */
+
+#include "imx6ul-kontron-n6x1x-s-u-boot.dtsi"

arch/arm/dts/imx6ull-kontron-n641x-s.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2019 Kontron Electronics GmbH
+ */
+
+/dts-v1/;
+
+#include "imx6ull-kontron-n641x-som.dtsi"
+#include "imx6ul-kontron-n6x1x-s.dtsi"
+
+/ {
+	model = "Kontron N641X S";
+	compatible = "kontron,imx6ull-n641x-s", "kontron,imx6ull-n641x-som",
+		     "fsl,imx6ull";
+};

arch/arm/dts/imx6ull-kontron-n641x-som.dtsi

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 exceet electronics GmbH
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ */
+
+#include "imx6ull.dtsi"
+#include "imx6ul-kontron-n6x1x-som-common.dtsi"
+
+/ {
+	model = "Kontron N641X SOM";
+	compatible = "kontron,imx6ull-n641x-som", "fsl,imx6ull";
+};

arch/arm/mach-imx/mx6/Kconfig

@@ -230,6 +230,15 @@ config TARGET_GW_VENTANA
 	imply CMD_SATA
 	imply CMD_SPL
 
+config TARGET_KONTRON_MX6UL
+	bool "Kontron Electronics SL/BL i.MX6UL/ULL (N63xx/N64xx)"
+	depends on MX6UL
+	select BINMAN
+	select DM
+	select DM_THERMAL
+	select SUPPORT_SPL
+	imply CMD_DM
+
 config TARGET_KOSAGI_NOVENA
 	bool "Kosagi Novena"
 	select BOARD_LATE_INIT
@@ -668,6 +677,7 @@ source "board/grinn/liteboard/Kconfig"
 source "board/phytec/pcm058/Kconfig"
 source "board/phytec/pcl063/Kconfig"
 source "board/gateworks/gw_ventana/Kconfig"
+source "board/kontron/sl-mx6ul/Kconfig"
 source "board/kosagi/novena/Kconfig"
 source "board/softing/vining_2000/Kconfig"
 source "board/liebherr/display5/Kconfig"

board/kontron/sl-mx6ul/Kconfig

+if TARGET_KONTRON_MX6UL
+
+config SYS_BOARD
+	string
+	default "sl-mx6ul"
+
+config SYS_VENDOR
+	string
+	default "kontron"
+
+config SYS_CONFIG_NAME
+	string
+	default "kontron-sl-mx6ul"
+
+endif

board/kontron/sl-mx6ul/MAINTAINERS

+Kontron SL/BL i.MX6UL/ULL Boards (N63xx/N64xx)
+M:	Frieder Schrempf <frieder.schrempf@kontron.de>
+S:	Maintained
+F:	arch/arm/dts/imx6ul-kontron-n6*
+F:	arch/arm/dts/imx6ull-kontron-n6*
+F:	board/kontron/sl-mx6ul
+F:	configs/kontron-sl-mx6ul_defconfig
+F:	doc/board/kontron/sl-mx6ul.rst
+F:	include/configs/kontron-sl-mx6ul.h

board/kontron/sl-mx6ul/Makefile

+# SPDX-License-Identifier: GPL-2.0+
+# (C) Copyright 2018 Kontron Electronics GmbH
+
+ifdef CONFIG_SPL_BUILD
+obj-y := spl.o
+else
+obj-y := sl-mx6ul.o
+endif

board/kontron/sl-mx6ul/sl-mx6ul.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/global_data.h>
+#include <fdt_support.h>
+#include <phy.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	gd->ram_size = imx_ddr_size();
+
+	return 0;
+}
+
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+	/*
+	 * Overwrite the memory size in the devicetree that is
+	 * passed to the kernel with the actual size detected.
+	 */
+	return fdt_fixup_memory(blob, PHYS_SDRAM, gd->ram_size);
+}
+
+static int setup_fec(void)
+{
+	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
+	int ret;
+
+	/*
+	 * Use 50M anatop loopback REF_CLK1 for ENET1,
+	 * clear gpr1[13], set gpr1[17].
+	 */
+	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK,
+			IOMUX_GPR1_FEC1_CLOCK_MUX1_SEL_MASK);
+
+	/*
+	 * Use 50M anatop loopback REF_CLK2 for ENET2,
+	 * clear gpr1[14], set gpr1[18].
+	 */
+	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
+			IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
+
+	ret = enable_fec_anatop_clock(0, ENET_50MHZ);
+	if (ret)
+		return ret;
+
+	ret = enable_fec_anatop_clock(1, ENET_50MHZ);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
+
+	if (phydev->drv->config)
+		phydev->drv->config(phydev);
+
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+	enable_qspi_clk(0);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* Address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	setup_fec();
+
+	return 0;
+}

board/kontron/sl-mx6ul/spl.c

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/global_data.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/mach-imx/iomux-v3.h>
+#include <fsl_esdhc_imx.h>
+#include <init.h>
+#include <linux/delay.h>
+#include <linux/sizes.h>
+#include <linux/errno.h>
+#include <mmc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+	BOARD_TYPE_KTN_N631X = 1,
+	BOARD_TYPE_KTN_N641X,
+	BOARD_TYPE_MAX
+};
+
+#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
+	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
+	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
+	PAD_CTL_PUS_22K_UP  | PAD_CTL_SPEED_LOW |		\
+	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define USDHC_CD_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |	\
+	PAD_CTL_PUS_100K_DOWN  | PAD_CTL_SPEED_LOW |		\
+	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
+	PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#include <spl.h>
+#include <asm/arch/mx6-ddr.h>
+
+static iomux_v3_cfg_t const usdhc1_pads[] = {
+	MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+
+	/* CD */
+	MX6_PAD_UART1_RTS_B__GPIO1_IO19 | MUX_PAD_CTRL(USDHC_CD_PAD_CTRL),
+};
+
+#define USDHC1_CD_GPIO	IMX_GPIO_NR(1, 19)
+
+static iomux_v3_cfg_t const usdhc2_pads[] = {
+	MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_NAND_WE_B__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_NAND_DATA02__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_NAND_DATA03__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	/* RST */
+	MX6_PAD_NAND_ALE__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+#define USDHC2_PWR_GPIO	IMX_GPIO_NR(4, 10)
+
+static struct fsl_esdhc_cfg usdhc_cfg[2] = {
+	{USDHC1_BASE_ADDR, 0, 4},
+	{USDHC2_BASE_ADDR, 0, 4},
+};
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+	int ret = 0;
+
+	switch (cfg->esdhc_base) {
+	case USDHC1_BASE_ADDR:
+		ret = !gpio_get_value(USDHC1_CD_GPIO);
+		break;
+	case USDHC2_BASE_ADDR:
+		// This SDHC interface does not use a CD pin
+		ret = 1;
+		break;
+	}
+
+	return ret;
+}
+
+int board_mmc_init(struct bd_info *bis)
+{
+	int i, ret;
+
+	/*
+	 * According to the board_mmc_init() the following map is done:
+	 * (U-boot device node)    (Physical Port)
+	 * mmc0                    USDHC1
+	 * mmc1                    USDHC2
+	 */
+	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
+		switch (i) {
+		case 0:
+			imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
+			gpio_direction_input(USDHC1_CD_GPIO);
+			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
+			break;
+		case 1:
+			imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+			gpio_direction_output(USDHC2_PWR_GPIO, 0);
+			udelay(500);
+			gpio_direction_output(USDHC2_PWR_GPIO, 1);
+			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+			break;
+		default:
+			printf("Warning: you configured more USDHC controllers (%d) than supported by the board\n",
+			       i + 1);
+			return -EINVAL;
+			}
+
+			ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
+			if (ret) {
+				printf("Warning: failed to initialize mmc dev %d\n", i);
+				return ret;
+			}
+	}
+	return 0;
+}
+
+iomux_v3_cfg_t const ecspi2_pads[] = {
+	MX6_PAD_CSI_DATA00__ECSPI2_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
+	MX6_PAD_CSI_DATA02__ECSPI2_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
+	MX6_PAD_CSI_DATA03__ECSPI2_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
+	MX6_PAD_CSI_DATA01__GPIO4_IO22  | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+int board_spi_cs_gpio(unsigned int bus, unsigned int cs)
+{
+	return (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS)
+		? (IMX_GPIO_NR(4, 22)) : -1;
+}
+
+static void setup_spi(void)
+{
+	gpio_request(IMX_GPIO_NR(4, 22), "spi2_cs0");
+	gpio_direction_output(IMX_GPIO_NR(4, 22), 1);
+	imx_iomux_v3_setup_multiple_pads(ecspi2_pads, ARRAY_SIZE(ecspi2_pads));
+
+	enable_spi_clk(true, 1);
+}
+
+static iomux_v3_cfg_t const uart4_pads[] = {
+	MX6_PAD_UART4_TX_DATA__UART4_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6_PAD_UART4_RX_DATA__UART4_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
+}
+
+// DDR 256MB (Hynix H5TQ2G63DFR)
+static struct mx6_ddr3_cfg mem_256M_ddr = {
+	.mem_speed = 800,
+	.density = 2,
+	.width = 16,
+	.banks = 8,
+	.rowaddr = 14,
+	.coladdr = 10,
+	.pagesz = 2,
+	.trcd = 1350,
+	.trcmin = 4950,
+	.trasmin = 3600,
+};
+
+static struct mx6_mmdc_calibration mx6_mmcd_256M_calib = {
+	.p0_mpwldectrl0 = 0x00000000,
+	.p0_mpdgctrl0 = 0x01340134,
+	.p0_mprddlctl = 0x40405052,
+	.p0_mpwrdlctl = 0x40404E48,
+};
+
+// DDR 512MB (Hynix H5TQ4G63DFR)
+static struct mx6_ddr3_cfg mem_512M_ddr = {
+	.mem_speed = 800,
+	.density = 4,
+	.width = 16,
+	.banks = 8,
+	.rowaddr = 15,
+	.coladdr = 10,
+	.pagesz = 2,
+	.trcd = 1350,
+	.trcmin = 4950,
+	.trasmin = 3600,
+};
+
+static struct mx6_mmdc_calibration mx6_mmcd_512M_calib = {
+	.p0_mpwldectrl0 = 0x00000000,
+	.p0_mpdgctrl0 = 0X01440144,
+	.p0_mprddlctl = 0x40405454,
+	.p0_mpwrdlctl = 0x40404E4C,
+};
+
+// Common DDR parameters (256MB and 512MB)
+static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = {
+	.grp_addds = 0x00000028,
+	.grp_ddrmode_ctl = 0x00020000,
+	.grp_b0ds = 0x00000028,
+	.grp_ctlds = 0x00000028,
+	.grp_b1ds = 0x00000028,
+	.grp_ddrpke = 0x00000000,
+	.grp_ddrmode = 0x00020000,
+	.grp_ddr_type = 0x000c0000,
+};
+
+static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = {
+	.dram_dqm0 = 0x00000028,
+	.dram_dqm1 = 0x00000028,
+	.dram_ras = 0x00000028,
+	.dram_cas = 0x00000028,
+	.dram_odt0 = 0x00000028,
+	.dram_odt1 = 0x00000028,
+	.dram_sdba2 = 0x00000000,
+	.dram_sdclk_0 = 0x00000028,
+	.dram_sdqs0 = 0x00000028,
+	.dram_sdqs1 = 0x00000028,
+	.dram_reset = 0x00000028,
+};
+
+struct mx6_ddr_sysinfo ddr_sysinfo = {
+	.dsize = 0,
+	.cs_density = 20,
+	.ncs = 1,
+	.cs1_mirror = 0,
+	.rtt_wr = 2,
+	.rtt_nom = 1,		/* RTT_Nom = RZQ/2 */
+	.walat = 1,		/* Write additional latency */
+	.ralat = 5,		/* Read additional latency */
+	.mif3_mode = 3,		/* Command prediction working mode */
+	.bi_on = 1,		/* Bank interleaving enabled */
+	.sde_to_rst = 0x10,	/* 14 cycles, 200us (JEDEC default) */
+	.rst_to_cke = 0x23,	/* 33 cycles, 500us (JEDEC default) */
+	.ddr_type = DDR_TYPE_DDR3,
+	.refsel = 0,	/* Refresh cycles at 64KHz */
+	.refr = 1,	/* 2 refresh commands per refresh cycle */
+};
+
+static void ccgr_init(void)
+{
+	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+	writel(0xFFFFFFFF, &ccm->CCGR0);
+	writel(0xFFFFFFFF, &ccm->CCGR1);
+	writel(0xFFFFFFFF, &ccm->CCGR2);
+	writel(0xFFFFFFFF, &ccm->CCGR3);
+	writel(0xFFFFFFFF, &ccm->CCGR4);
+	writel(0xFFFFFFFF, &ccm->CCGR5);
+	writel(0xFFFFFFFF, &ccm->CCGR6);
+	writel(0xFFFFFFFF, &ccm->CCGR7);
+}
+
+static void spl_dram_init(void)
+{
+	unsigned int size;
+
+	// DDR RAM connection is always 16 bit wide. Init IOs.
+	mx6ul_dram_iocfg(16, &mx6_ddr_ioregs, &mx6_grp_ioregs);
+
+	// Try to detect the 512MB RAM chip first.
+	mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_512M_calib, &mem_512M_ddr);
+
+	// Get the available RAM size
+	size = get_ram_size((void *)PHYS_SDRAM, SZ_512M);
+
+	gd->ram_size = size;
+
+	if (size == SZ_512M) {
+		// 512MB RAM was detected
+		return;
+	} else if (size == SZ_256M) {
+		// 256MB RAM was detected, use correct config and calibration
+		mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_256M_calib, &mem_256M_ddr);
+	} else {
+		printf("Invalid DDR RAM size detected: %x\n", size);
+	}
+}
+
+static int do_board_detect(void)
+{
+	if (is_mx6ul())
+		gd->board_type = BOARD_TYPE_KTN_N631X;
+	else if (is_mx6ull())
+		gd->board_type = BOARD_TYPE_KTN_N641X;
+
+	printf("Kontron SL i.MX6UL%s (N6%s1x) module, %lu MB RAM detected\n",
+	       is_mx6ull() ? "L" : "", is_mx6ull() ? "4" : "3", gd->ram_size / SZ_1M);
+
+	return 0;
+}
+
+void board_init_f(ulong dummy)
+{
+	ccgr_init();
+
+	/* setup AIPS and disable watchdog */
+	arch_cpu_init();
+
+	/* iomux and setup of UART and SPI */
+	board_early_init_f();
+
+	/* setup GP timer */
+	timer_init();
+
+	/* UART clocks enabled and gd valid - init serial console */
+	preloader_console_init();
+
+	/* DDR initialization */
+	spl_dram_init();
+
+	/* Clear the BSS. */
+	memset(__bss_start, 0, __bss_end - __bss_start);
+
+	/* Detect the board type */
+	do_board_detect();
+
+	/* load/boot image from boot device */
+	board_init_r(NULL, 0);
+}
+
+void board_boot_order(u32 *spl_boot_list)
+{
+	u32 bootdev = spl_boot_device();
+
+	/*
+	 * The default boot fuse settings use the SD card (MMC1) as primary
+	 * boot device, but allow SPI NOR as a fallback boot device.
+	 * We can't detect the fallback case and spl_boot_device() will return
+	 * BOOT_DEVICE_MMC1 despite the actual boot device being SPI NOR.
+	 * Therefore we try to load U-Boot proper vom SPI NOR after loading
+	 * from MMC has failed.
+	 */
+	spl_boot_list[0] = bootdev;
+
+	switch (bootdev) {
+	case BOOT_DEVICE_MMC1:
+	case BOOT_DEVICE_MMC2:
+		spl_boot_list[1] = BOOT_DEVICE_SPI;
+		break;
+	}
+}
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+	setup_spi();
+
+	return 0;
+}
+
+int board_fit_config_name_match(const char *name)
+{
+	if (gd->board_type == BOARD_TYPE_KTN_N631X && is_mx6ul() &&
+	    !strcmp(name, "imx6ul-kontron-n631x-s"))
+		return 0;
+
+	if (gd->board_type == BOARD_TYPE_KTN_N641X && is_mx6ull() &&
+	    !strcmp(name, "imx6ull-kontron-n641x-s"))
+		return 0;
+
+	return -1;
+}

configs/kontron-sl-mx6ul_defconfig

+CONFIG_ARM=y
+CONFIG_ARCH_MX6=y
+CONFIG_SYS_TEXT_BASE=0x87800000
+CONFIG_SPL_GPIO=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_SYS_MEMTEST_START=0x80000000
+CONFIG_SYS_MEMTEST_END=0x90000000
+CONFIG_ENV_SIZE=0x10000
+CONFIG_ENV_OFFSET=0xF0000
+CONFIG_ENV_SECT_SIZE=0x10000
+CONFIG_MX6UL=y
+CONFIG_TARGET_KONTRON_MX6UL=y
+CONFIG_SYS_MALLOC_LEN=0x4000000
+CONFIG_DM_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="imx6ul-kontron-n631x-s"
+CONFIG_SPL_TEXT_BASE=0x00908000
+CONFIG_SPL_MMC_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_BOOTCOUNT_BOOTLIMIT=3
+CONFIG_SPL=y
+CONFIG_SPL_SPI_FLASH_SUPPORT=y
+CONFIG_SPL_SPI_SUPPORT=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_FIT=y
+CONFIG_SPL_LOAD_FIT=y
+# CONFIG_USE_SPL_FIT_GENERATOR is not set
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_IMX_CONFIG="arch/arm/mach-imx/spl_sd.cfg"
+CONFIG_SYS_CONSOLE_IS_IN_ENV=y
+CONFIG_BOARD_TYPES=y
+CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_SPL_RAW_IMAGE_SUPPORT=y
+CONFIG_SPL_LEGACY_IMAGE_SUPPORT=y
+CONFIG_SPL_LEGACY_IMAGE_CRC_CHECK=y
+CONFIG_SPL_SEPARATE_BSS=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x8A
+CONFIG_SPL_SPI_LOAD=y
+CONFIG_SYS_SPI_U_BOOT_OFFS=0x11400
+CONFIG_SPL_USB_HOST=y
+CONFIG_SPL_USB_GADGET=y
+CONFIG_SPL_USB_SDP_SUPPORT=y
+CONFIG_SPL_WATCHDOG=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_SF_TEST=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_SDP=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FS_UUID=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nor0=spi1.0,spi-nand0=spi4.0"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=spi1.0:128k(spl),832k(u-boot),64k(env);spi4.0:-(UBI)"
+CONFIG_CMD_UBI=y
+CONFIG_OF_CONTROL=y
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_LIST="imx6ul-kontron-n631x-s imx6ull-kontron-n641x-s"
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_MMC=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_USE_ENV_SPI_BUS=y
+CONFIG_ENV_SPI_BUS=2
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_BOOTCOUNT_ENV=y
+CONFIG_DM_I2C=y
+CONFIG_FSL_USDHC=y
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_MTD_SPI_NAND=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SF_DEFAULT_BUS=1
+CONFIG_SF_DEFAULT_MODE=0
+CONFIG_SF_DEFAULT_SPEED=10000000
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_PHYLIB=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ8XXX=y
+CONFIG_DM_ETH=y
+CONFIG_DM_ETH_PHY=y
+CONFIG_FEC_MXC=y
+CONFIG_MII=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX6=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_CONS_INDEX=4
+CONFIG_MXC_UART=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_FSL_QSPI=y
+CONFIG_MXC_SPI=y
+CONFIG_IMX_THERMAL=y
+CONFIG_USB=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="FSL"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0525
+CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
+CONFIG_CI_UDC=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_FDT_FIXUP_PARTITIONS=y

doc/board/kontron/index.rst

@@ -7,3 +7,4 @@ Kontron
    :maxdepth: 2
 
    sl28
+   sl-mx6ul

doc/board/kontron/sl-mx6ul.rst

+.. SPDX-License-Identifier: GPL-2.0+
+
+Kontron Electronics SL i.MX6UL/ULL SoM
+======================================
+
+The Kontron SoM-Line i.MX6UL/ULL (N6x1x) by Kontron Electronics GmbH is a SoM module
+with either an i.MX6UL or i.MX6ULL SoC, 256/512 MB DDR3 RAM, SPI NOR, SPI NAND and Ethernet PHY.
+
+The matching evaluation boards (Board-Line) have two Ethernet ports, USB 2.0,
+RGB, SD card, CAN, RS485, RS232 and much more.
+
+Quick Start
+-----------
+
+- Build U-Boot
+- Boot
+
+Build U-Boot
+^^^^^^^^^^^^
+
+.. code-block:: bash
+
+   $ make kontron-sl-mx6ul_defconfig
+   $ make
+
+Burn the flash.bin to SD card at an offset of 1 KiB:
+
+.. code-block:: bash
+
+   $ dd if=flash.bin of=/dev/sd[x] bs=1K seek=1 conv=notrunc
+
+Boot
+^^^^
+
+Put the SD card in the slot on the board and apply power.
+
+Further Information
+-------------------
+
+The bootloader configuration is setup to be used with kernel FIT images. Legacy
+images might not be working out of the box.
+
+Please see https://docs.kontron-electronics.de for further vendor documentation.

include/configs/kontron-sl-mx6ul.h

+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2018 Kontron Electronics GmbH
+ *
+ * Configuration settings for the Kontron i.MX6UL boards/SoMs.
+ */
+#ifndef __KONTRON_MX6UL_CONFIG_H
+#define __KONTRON_MX6UL_CONFIG_H
+
+#include <asm/arch/imx-regs.h>
+#include <linux/sizes.h>
+
+#include "mx6_common.h"
+#ifdef CONFIG_SPL_BUILD
+#include "imx6_spl.h"
+#endif
+
+/* RAM */
+#define PHYS_SDRAM			MMDC0_ARB_BASE_ADDR
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM
+
+#define CONFIG_SYS_INIT_RAM_ADDR	IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE	IRAM_SIZE
+
+#define CONFIG_SYS_HZ			1000
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+#define CONFIG_SYS_UBOOT_BASE		CONFIG_SYS_TEXT_BASE
+
+/* Board and environment settings */
+#define CONFIG_MXC_UART_BASE		UART4_BASE
+#define CONFIG_HOSTNAME			"kontron-mx6ul"
+#define CONFIG_ETHPRIME			"eth0"
+
+#ifdef CONFIG_USB_EHCI_HCD
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
+#define CONFIG_MXC_USB_PORTSC		(PORT_PTS_UTMI | PORT_PTS_PTW)
+#define CONFIG_MXC_USB_FLAGS		0
+#define CONFIG_USB_MAX_CONTROLLER_COUNT	2
+#endif
+
+/* Boot order for distro boot */
+#ifndef CONFIG_SPL_BUILD
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 1) \
+	func(MMC, mmc, 0) \
+	func(UBIFS, ubifs, 0) \
+	func(USB, usb, 0) \
+	func(PXE, pxe, na) \
+	func(DHCP, dhcp, na)
+#include <config_distro_bootcmd.h>
+#else
+#define BOOTENV
+#endif
+
+/* MMC Configs */
+#ifdef CONFIG_FSL_USDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	USDHC1_BASE_ADDR
+#define CONFIG_SYS_FSL_USDHC_NUM	2
+#define CONFIG_SYS_MMC_IMG_LOAD_PART	1
+#endif
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"kernel_addr_r=0x82000000\0" \
+	"ramdisk_addr_r=0x88080000\0" \
+	"pxefile_addr_r=0x80100000\0" \
+	"scriptaddr=0x80100000\0" \
+	"bootdelay=3\0" \
+	"ethact=" CONFIG_ETHPRIME "\0" \
+	"hostname=" CONFIG_HOSTNAME "\0" \
+	BOOTENV
+
+#endif /* __KONTRON_MX6UL_CONFIG_H */