[PATCH] arm64: dts: freescale: Add Mettler-Toledo Snowflake V2 support

[PATCH] arm64: dts: freescale: Add Mettler-Toledo Snowflake V2 support

[Wojciech Dubowik]

Add initial support for Mettler-Toledo Snowflake V2 terminal.
The board is using Kontron SL i.MX 8M Mini SoM with 1GB RAM.

Supported board features:
* 7" Display with touchscreen
* RS-232
* I2S Audio
* SD-card/eMMC
* USB

Signed-off-by: Tobias Graemer <Tobias.Graemer@mt.com>
Signed-off-by: Wojciech Dubowik <Wojciech.Dubowik@mt.com>
---
 .../devicetree/bindings/arm/fsl.yaml          |   6 +-
 arch/arm64/boot/dts/freescale/Makefile        |   1 +
 .../dts/freescale/imx8mm-mt-snowflake-v2.dts  | 484 ++++++++++++++++++
 3 files changed, 489 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-mt-snowflake-v2.dts

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index d3b5e6923e41..fe5eeb4355e8 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -986,9 +986,11 @@ properties:
           - const: engicam,icore-mx8mm             # i.MX8MM Engicam i.Core MX8M Mini SoM
           - const: fsl,imx8mm
 
-      - description: Kontron BL i.MX8MM (N801X S) Board
+      - description: Kontron i.MX8MM N801X SOM based boards
         items:
-          - const: kontron,imx8mm-bl
+          - enum:
+              - kontron,imx8mm-bl                  # i.MX8MM Kontron BL i.MX8MM (N801X S) Board
+              - mt,imx8mm-snowflake-v2             # i.MX8MM Mettler-Toledo Snowflake V2 Board
           - const: kontron,imx8mm-sl
           - const: fsl,imx8mm
 
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 0b473a23d120..86f2f1580696 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -128,6 +128,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-iot-gateway.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-innocomm-wb15-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-bl.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-bl-osm-s.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-mt-snowflake-v2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-mx8menlo.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-nitrogen-r2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-phg.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-mt-snowflake-v2.dts b/arch/arm64/boot/dts/freescale/imx8mm-mt-snowflake-v2.dts
new file mode 100644
index 000000000000..c810463a2f40
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-mt-snowflake-v2.dts
@@ -0,0 +1,484 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Mettler-Toledo GmbH
+ */
+
+/dts-v1/;
+
+#include "imx8mm-kontron-sl.dtsi"
+
+/ {
+	model = "Mettler Toledo i.MX8MM Snowflake V2";
+	compatible = "mt,imx8mm-snowflake-v2", "kontron,imx8mm-sl",
+		     "fsl,imx8mm";
+
+	chosen {
+		stdout-path = &uart3;
+	};
+
+	aliases {
+		ethernet1 = &usbnet;
+	};
+
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm1 0 500000 0>;
+		power-supply = <&reg_5v>;
+		brightness-levels = <0 100>;
+		num-interpolated-steps = <100>;
+		default-brightness-level = <100>;
+		status = "okay";
+	};
+
+	panel {
+		compatible = "edt,etml0700y5dha";
+		backlight = <&backlight>;
+		power-supply = <&reg_vdd_3v3>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&bridge_out>;
+			};
+		};
+	};
+
+	max98357a: audio-codec {
+		compatible = "maxim,max98357a";
+		sdmode-gpios = <&gpio4 19 GPIO_ACTIVE_HIGH>;
+		#sound-dai-cells = <0>;
+		status = "okay";
+	};
+
+	reg_5v: regulator-5v {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-5V";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	reg_sn65dsi83_1v8: regulator-sn65dsi83-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "SN65DSI83_1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
+	sound-max98357a {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "max98357a-audio";
+
+		simple-audio-card,format = "i2s";
+		simple-audio-card,frame-master = <&cpudai>;
+		simple-audio-card,bitclock-master = <&cpudai>;
+		simple-audio-card,widgets =
+			"Speaker", "Speakers";
+		simple-audio-card,routing =
+			"Speakers", "Speaker";
+		status = "okay";
+
+		cpudai: simple-audio-card,cpu {
+			sound-dai = <&sai1>;
+			dai-tdm-slot-num = <2>;
+			dai-tdm-slot-width = <32>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&max98357a>;
+			clocks = <&clk IMX8MM_CLK_SAI1_ROOT>;
+		};
+	};
+};
+
+&sai1 {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai1>;
+	assigned-clocks = <&clk IMX8MM_CLK_SAI1>;
+	assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <24576000>;
+	fsl,sai-mclk-direction-output;
+	status = "okay";
+};
+
+&i2c1 {
+	bootph-all;
+	status = "okay";
+};
+
+&i2c2 {
+	bootph-all;
+	status = "okay";
+};
+
+&i2c4 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c4>;
+	status = "okay";
+
+	eeprom: eeprom@54 {
+		compatible = "atmel,24c08";
+		reg = <0x54>;
+		pagesize = <16>;
+	};
+
+	ili2511: ili2511@41 {
+		compatible = "ilitek,ili251x";
+		reg = <0x41>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_touch>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+		reset-gpios = <&gpio3 16 GPIO_ACTIVE_LOW>;
+	};
+
+	lvds: lvds@2c {
+		compatible = "ti,sn65dsi83";
+		reg = <0x2c>;
+		vcc-supply = <&reg_sn65dsi83_1v8>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_sn65dsi83>;
+		status = "okay";
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				bridge_in: endpoint {
+					remote-endpoint = <&mipi_dsi_out>;
+					data-lanes = <1 2>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+				bridge_out: endpoint {
+					remote-endpoint = <&panel_in>;
+					data-lanes = <4 3 2 1>;
+				};
+			};
+		};
+	};
+
+	usbc-cc-controller@61 {
+		compatible = "ti,tusb320";
+		reg = <0x61>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_usbc_controller>;
+		interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_LOW>;
+	};
+};
+
+&mipi_dsi {
+	status = "okay";
+	vddio-supply = <&reg_sn65dsi83_1v8>;
+	assigned-clocks = <&clk IMX8MM_CLK_DSI_CORE>,
+			  <&clk IMX8MM_VIDEO_PLL1_OUT>,
+			  <&clk IMX8MM_CLK_DSI_PHY_REF>;
+	assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_266M>,
+			  <&clk IMX8MM_VIDEO_PLL1_BYPASS>,
+			  <&clk IMX8MM_CLK_24M>;
+	assigned-clock-rates = <266000000>, <594000000>, <12000000>;
+	samsung,pll-clock-frequency = <12000000>;
+	samsung,burst-clock-frequency = <891000000>;
+	samsung,esc-clock-frequency = <54000000>;
+};
+
+&mipi_dsi_out {
+        remote-endpoint = <&bridge_in>;
+};
+
+&lcdif {
+	status = "okay";
+};
+
+&gpu_2d {
+	status = "okay";
+};
+
+&gpu_3d {
+	status = "okay";
+};
+
+&ecspi1 {
+	status = "disabled";
+};
+
+&gpio1 {
+	bootph-pre-ram;
+};
+
+&gpio2 {
+	bootph-pre-ram;
+};
+
+&gpio3 {
+	bootph-pre-ram;
+};
+
+&gpio4 {
+	bootph-pre-ram;
+};
+
+&gpio5 {
+	bootph-pre-ram;
+	status_led_controller_oe: status-led-controller-hog {
+		gpio-hog;
+		gpios = <4 GPIO_ACTIVE_HIGH>;
+		output-low;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_hog_status_led_controller>;
+	};
+};
+
+&pca9450 {
+        bootph-pre-ram;
+};
+
+&{/soc@0/bus@30800000/i2c@30a20000/pmic@25/regulators} {
+	bootph-pre-ram;
+};
+
+&reg_nvcc_sd {
+	regulator-min-microvolt = <3300000>;
+	regulator-boot-on;
+	regulator-always-on;
+};
+
+&pwm1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm1>;
+	status = "okay";
+};
+
+&pwm2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm2>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1>;
+	uart-has-rtscts;
+        bootph-all;
+	status = "okay";
+};
+
+&uart3 {
+        bootph-all;
+};
+
+&usbotg1 {
+	bootph-pre-ram;
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usbotg2 {
+	dr_mode = "host";
+	disable-over-current;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	usb1@1 {
+		reg = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usbnet: ethernet@1 {
+			compatible = "usb424,9500";
+			reg = <1>;
+			mac-address = [ 00 00 00 00 00 00 ];
+		};
+	};
+};
+
+&usdhc1 {
+        bootph-pre-ram;
+};
+
+&usdhc2 {
+	bootph-pre-ram;
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+	pinctrl-0 = <&pinctrl_usdhc2>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
+	vmmc-supply = <&reg_vdd_3v3>;
+	cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
+	bus-width = <4>;
+	no-1-8-v;
+	status = "okay";
+};
+
+&pinctrl_usdhc1 {
+	bootph-pre-ram;
+};
+
+&pinctrl_usdhc1_100mhz {
+	bootph-pre-ram;
+};
+
+&pinctrl_usdhc1_200mhz {
+	bootph-pre-ram;
+};
+
+&wdog1 {
+	bootph-pre-ram;
+};
+
+&pinctrl_wdog {
+	bootph-pre-ram;
+};
+
+&pinctrl_ecspi1 {
+	bootph-pre-ram;
+};
+
+&pinctrl_i2c1 {
+	bootph-pre-ram;
+};
+
+&pinctrl_pmic {
+	bootph-pre-ram;
+};
+
+&pinctrl_uart3 {
+	bootph-all;
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	pinctrl_hog: hoggrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3		0x19 /* \SOM_RTC_INT */
+			MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x184 /* SOM_DIS_ID0 */
+			MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10		0x184 /* SOM_DIS_ID1 */
+			MX8MM_IOMUXC_GPIO1_IO11_GPIO1_IO11		0x184 /* SOM_DIS_ID2 */
+			MX8MM_IOMUXC_SAI2_TXC_GPIO4_IO25		0x19 /* SOM_PCB_ID0 */
+			MX8MM_IOMUXC_SAI2_TXD0_GPIO4_IO26		0x19 /* SOM_PCB_ID1 */
+			MX8MM_IOMUXC_SAI2_MCLK_GPIO4_IO27		0x19 /* SOM_PCBA_ID0 */
+			MX8MM_IOMUXC_SAI3_RXFS_GPIO4_IO28		0x19 /* SOM_PCBA_ID1 */
+			MX8MM_IOMUXC_SAI5_RXFS_GPIO3_IO19		0x19 /* \SOM_STATLED_RES */
+			MX8MM_IOMUXC_SAI5_RXC_GPIO3_IO20		0x19 /* \SOM_HUB_RES */
+			MX8MM_IOMUXC_SAI5_RXD0_GPIO3_IO21		0x19 /* \SOM_SUPPLY_EN */
+			MX8MM_IOMUXC_SAI5_RXD1_GPIO3_IO22		0x1c4 /* \SOM_COM_RES / version C */
+			MX8MM_IOMUXC_SAI5_RXD2_GPIO3_IO23		0x184 /* SOM_DBG_GPIO0 */
+			MX8MM_IOMUXC_SAI5_RXD3_GPIO3_IO24		0x184 /* SOM_DBG_GPIO1 */
+			MX8MM_IOMUXC_SAI5_MCLK_GPIO3_IO25		0x184 /* SOM_DBG_GPIO2 */
+			MX8MM_IOMUXC_SAI3_TXD_GPIO5_IO1			0x184 /* SOM_DBG_GPIO3 version C */
+			MX8MM_IOMUXC_SAI1_TXD7_GPIO4_IO19		0x184 /* SOM_AUDIO_SD version E */
+		>;
+	};
+
+	pinctrl_sai1: sai1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI1_TXFS_SAI1_TX_SYNC		0xd6
+			MX8MM_IOMUXC_SAI1_TXC_SAI1_TX_BCLK		0xd6
+			MX8MM_IOMUXC_SAI1_TXD0_SAI1_TX_DATA0		0xd6
+		>;
+	};
+
+	pinctrl_i2c4: i2c4grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL			0x400001c3
+			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA			0x400001c3
+		>;
+	};
+
+	pinctrl_sn65dsi83: sn65dsi83grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO05_GPIO1_IO5		0x19 /* \SOM_DSI_INT */
+		>;
+	};
+
+	pinctrl_hog_status_led_controller: statusledcontrollergrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SPDIF_RX_GPIO5_IO4			0x19
+		>;
+	};
+
+	pinctrl_pwm1: pwm1grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SPDIF_EXT_CLK_PWM1_OUT		0x6
+		>;
+	};
+
+	pinctrl_pwm2: pwm2grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SPDIF_RX_PWM2_OUT			0x6
+		>;
+	};
+
+	pinctrl_pwm3: pwm3grp {
+		fsl,pins = <
+			MX8MM_IOMUXC_SPDIF_TX_PWM3_OUT			0x6
+		>;
+	};
+
+	pinctrl_touch: touchgrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO01_GPIO1_IO1		0x19 /* \SOM_TOUCH_RES */
+			MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16		0x19 /* \SOM_TOUCH_INT */
+		>;
+	};
+
+	pinctrl_usbc_controller: usbccontrollergrp {
+		fsl,pins = <
+			MX8MM_IOMUXC_GPIO1_IO06_GPIO1_IO6		0x19 /* \SOM_USBC_INT */
+		>;
+	};
+
+	pinctrl_uart1: uart1grp {
+		bootph-pre-ram;
+		fsl,pins = <
+			MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX		0x140
+			MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX		0x140
+			MX8MM_IOMUXC_SAI2_RXD0_UART1_DCE_RTS_B		0x140
+			MX8MM_IOMUXC_SAI2_TXFS_UART1_DCE_CTS_B		0x140
+		>;
+	};
+
+	pinctrl_usdhc2: usdhc2grp {
+		bootph-pre-ram;
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x190
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d0
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d0
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d0
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d0
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d0
+			MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12		0x41
+		>;
+	};
+
+	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
+		bootph-pre-ram;
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x194
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d4
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d4
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d4
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d4
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d4
+			MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12		0x41
+		>;
+	};
+
+	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
+		bootph-pre-ram;
+		fsl,pins = <
+			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x196
+			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d6
+			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d6
+			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d6
+			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d6
+			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d6
+			MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12		0x41
+		>;
+	};
+};
-- 
2.47.2

Re: [PATCH] arm64: dts: freescale: Add Mettler-Toledo Snowflake V2 support

[Frank Li]

On Thu, Jun 19, 2025 at 11:12:44AM +0200, Wojciech Dubowik wrote:
> Add initial support for Mettler-Toledo Snowflake V2 terminal.
> The board is using Kontron SL i.MX 8M Mini SoM with 1GB RAM.
>
> Supported board features:
> * 7" Display with touchscreen
> * RS-232
> * I2S Audio
> * SD-card/eMMC
> * USB
>
> Signed-off-by: Tobias Graemer <Tobias.Graemer@mt.com>
> Signed-off-by: Wojciech Dubowik <Wojciech.Dubowik@mt.com>
> ---
>  .../devicetree/bindings/arm/fsl.yaml          |   6 +-

binding doc should seperate patch

>  arch/arm64/boot/dts/freescale/Makefile        |   1 +
>  .../dts/freescale/imx8mm-mt-snowflake-v2.dts  | 484 ++++++++++++++++++
>  3 files changed, 489 insertions(+), 2 deletions(-)
>  create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-mt-snowflake-v2.dts
>
> diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
> index d3b5e6923e41..fe5eeb4355e8 100644
> --- a/Documentation/devicetree/bindings/arm/fsl.yaml
> +++ b/Documentation/devicetree/bindings/arm/fsl.yaml
> @@ -986,9 +986,11 @@ properties:
>            - const: engicam,icore-mx8mm             # i.MX8MM Engicam i.Core MX8M Mini SoM
>            - const: fsl,imx8mm
>
> -      - description: Kontron BL i.MX8MM (N801X S) Board
> +      - description: Kontron i.MX8MM N801X SOM based boards
>          items:
> -          - const: kontron,imx8mm-bl
> +          - enum:
> +              - kontron,imx8mm-bl                  # i.MX8MM Kontron BL i.MX8MM (N801X S) Board
> +              - mt,imx8mm-snowflake-v2             # i.MX8MM Mettler-Toledo Snowflake V2 Board
>            - const: kontron,imx8mm-sl
>            - const: fsl,imx8mm
>
> diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
> index 0b473a23d120..86f2f1580696 100644
> --- a/arch/arm64/boot/dts/freescale/Makefile
> +++ b/arch/arm64/boot/dts/freescale/Makefile
> @@ -128,6 +128,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mm-iot-gateway.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-innocomm-wb15-evk.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-bl.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-bl-osm-s.dtb
> +dtb-$(CONFIG_ARCH_MXC) += imx8mm-mt-snowflake-v2.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-mx8menlo.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-nitrogen-r2.dtb
>  dtb-$(CONFIG_ARCH_MXC) += imx8mm-phg.dtb
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-mt-snowflake-v2.dts b/arch/arm64/boot/dts/freescale/imx8mm-mt-snowflake-v2.dts
> new file mode 100644
> index 000000000000..c810463a2f40
> --- /dev/null
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-mt-snowflake-v2.dts

run https://github.com/lznuaa/dt-format to mantain nice node order for new
file.

Frank
> @@ -0,0 +1,484 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2023 Mettler-Toledo GmbH
> + */
> +
> +/dts-v1/;
> +
> +#include "imx8mm-kontron-sl.dtsi"
> +
> +/ {
> +	model = "Mettler Toledo i.MX8MM Snowflake V2";
> +	compatible = "mt,imx8mm-snowflake-v2", "kontron,imx8mm-sl",
> +		     "fsl,imx8mm";
> +
> +	chosen {
> +		stdout-path = &uart3;
> +	};
> +
> +	aliases {
> +		ethernet1 = &usbnet;
> +	};
> +
> +	backlight: backlight {
> +		compatible = "pwm-backlight";
> +		pwms = <&pwm1 0 500000 0>;
> +		power-supply = <&reg_5v>;
> +		brightness-levels = <0 100>;
> +		num-interpolated-steps = <100>;
> +		default-brightness-level = <100>;
> +		status = "okay";
> +	};
> +
> +	panel {
> +		compatible = "edt,etml0700y5dha";
> +		backlight = <&backlight>;
> +		power-supply = <&reg_vdd_3v3>;
> +
> +		port {
> +			panel_in: endpoint {
> +				remote-endpoint = <&bridge_out>;
> +			};
> +		};
> +	};
> +
> +	max98357a: audio-codec {
> +		compatible = "maxim,max98357a";
> +		sdmode-gpios = <&gpio4 19 GPIO_ACTIVE_HIGH>;
> +		#sound-dai-cells = <0>;
> +		status = "okay";
> +	};
> +
> +	reg_5v: regulator-5v {
> +		compatible = "regulator-fixed";
> +		regulator-name = "fixed-5V";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +	};
> +
> +	reg_sn65dsi83_1v8: regulator-sn65dsi83-1v8 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "SN65DSI83_1V8";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	sound-max98357a {
> +		compatible = "simple-audio-card";
> +		simple-audio-card,name = "max98357a-audio";
> +
> +		simple-audio-card,format = "i2s";
> +		simple-audio-card,frame-master = <&cpudai>;
> +		simple-audio-card,bitclock-master = <&cpudai>;
> +		simple-audio-card,widgets =
> +			"Speaker", "Speakers";
> +		simple-audio-card,routing =
> +			"Speakers", "Speaker";
> +		status = "okay";
> +
> +		cpudai: simple-audio-card,cpu {
> +			sound-dai = <&sai1>;
> +			dai-tdm-slot-num = <2>;
> +			dai-tdm-slot-width = <32>;
> +		};
> +
> +		simple-audio-card,codec {
> +			sound-dai = <&max98357a>;
> +			clocks = <&clk IMX8MM_CLK_SAI1_ROOT>;
> +		};
> +	};
> +};
> +
> +&sai1 {
> +	#sound-dai-cells = <0>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_sai1>;
> +	assigned-clocks = <&clk IMX8MM_CLK_SAI1>;
> +	assigned-clock-parents = <&clk IMX8MM_AUDIO_PLL1_OUT>;
> +	assigned-clock-rates = <24576000>;
> +	fsl,sai-mclk-direction-output;
> +	status = "okay";
> +};
> +
> +&i2c1 {
> +	bootph-all;
> +	status = "okay";
> +};
> +
> +&i2c2 {
> +	bootph-all;
> +	status = "okay";
> +};
> +
> +&i2c4 {
> +	clock-frequency = <400000>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_i2c4>;
> +	status = "okay";
> +
> +	eeprom: eeprom@54 {
> +		compatible = "atmel,24c08";
> +		reg = <0x54>;
> +		pagesize = <16>;
> +	};
> +
> +	ili2511: ili2511@41 {
> +		compatible = "ilitek,ili251x";
> +		reg = <0x41>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_touch>;
> +		interrupt-parent = <&gpio1>;
> +		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
> +		reset-gpios = <&gpio3 16 GPIO_ACTIVE_LOW>;
> +	};
> +
> +	lvds: lvds@2c {
> +		compatible = "ti,sn65dsi83";
> +		reg = <0x2c>;
> +		vcc-supply = <&reg_sn65dsi83_1v8>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_sn65dsi83>;
> +		status = "okay";
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				bridge_in: endpoint {
> +					remote-endpoint = <&mipi_dsi_out>;
> +					data-lanes = <1 2>;
> +				};
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +				bridge_out: endpoint {
> +					remote-endpoint = <&panel_in>;
> +					data-lanes = <4 3 2 1>;
> +				};
> +			};
> +		};
> +	};
> +
> +	usbc-cc-controller@61 {
> +		compatible = "ti,tusb320";
> +		reg = <0x61>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_usbc_controller>;
> +		interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_LOW>;
> +	};
> +};
> +
> +&mipi_dsi {
> +	status = "okay";
> +	vddio-supply = <&reg_sn65dsi83_1v8>;
> +	assigned-clocks = <&clk IMX8MM_CLK_DSI_CORE>,
> +			  <&clk IMX8MM_VIDEO_PLL1_OUT>,
> +			  <&clk IMX8MM_CLK_DSI_PHY_REF>;
> +	assigned-clock-parents = <&clk IMX8MM_SYS_PLL1_266M>,
> +			  <&clk IMX8MM_VIDEO_PLL1_BYPASS>,
> +			  <&clk IMX8MM_CLK_24M>;
> +	assigned-clock-rates = <266000000>, <594000000>, <12000000>;
> +	samsung,pll-clock-frequency = <12000000>;
> +	samsung,burst-clock-frequency = <891000000>;
> +	samsung,esc-clock-frequency = <54000000>;
> +};
> +
> +&mipi_dsi_out {
> +        remote-endpoint = <&bridge_in>;
> +};
> +
> +&lcdif {
> +	status = "okay";
> +};
> +
> +&gpu_2d {
> +	status = "okay";
> +};
> +
> +&gpu_3d {
> +	status = "okay";
> +};
> +
> +&ecspi1 {
> +	status = "disabled";
> +};
> +
> +&gpio1 {
> +	bootph-pre-ram;
> +};
> +
> +&gpio2 {
> +	bootph-pre-ram;
> +};
> +
> +&gpio3 {
> +	bootph-pre-ram;
> +};
> +
> +&gpio4 {
> +	bootph-pre-ram;
> +};
> +
> +&gpio5 {
> +	bootph-pre-ram;
> +	status_led_controller_oe: status-led-controller-hog {
> +		gpio-hog;
> +		gpios = <4 GPIO_ACTIVE_HIGH>;
> +		output-low;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_hog_status_led_controller>;
> +	};
> +};
> +
> +&pca9450 {
> +        bootph-pre-ram;
> +};
> +
> +&{/soc@0/bus@30800000/i2c@30a20000/pmic@25/regulators} {
> +	bootph-pre-ram;
> +};
> +
> +&reg_nvcc_sd {
> +	regulator-min-microvolt = <3300000>;
> +	regulator-boot-on;
> +	regulator-always-on;
> +};
> +
> +&pwm1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm1>;
> +	status = "okay";
> +};
> +
> +&pwm2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_pwm2>;
> +	status = "okay";
> +};
> +
> +&uart1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_uart1>;
> +	uart-has-rtscts;
> +        bootph-all;
> +	status = "okay";
> +};
> +
> +&uart3 {
> +        bootph-all;
> +};
> +
> +&usbotg1 {
> +	bootph-pre-ram;
> +	dr_mode = "peripheral";
> +	status = "okay";
> +};
> +
> +&usbotg2 {
> +	dr_mode = "host";
> +	disable-over-current;
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	status = "okay";
> +
> +	usb1@1 {
> +		reg = <1>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		usbnet: ethernet@1 {
> +			compatible = "usb424,9500";
> +			reg = <1>;
> +			mac-address = [ 00 00 00 00 00 00 ];
> +		};
> +	};
> +};
> +
> +&usdhc1 {
> +        bootph-pre-ram;
> +};
> +
> +&usdhc2 {
> +	bootph-pre-ram;
> +	pinctrl-names = "default", "state_100mhz", "state_200mhz";
> +	pinctrl-0 = <&pinctrl_usdhc2>;
> +	pinctrl-1 = <&pinctrl_usdhc2_100mhz>;
> +	pinctrl-2 = <&pinctrl_usdhc2_200mhz>;
> +	vmmc-supply = <&reg_vdd_3v3>;
> +	cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
> +	bus-width = <4>;
> +	no-1-8-v;
> +	status = "okay";
> +};
> +
> +&pinctrl_usdhc1 {
> +	bootph-pre-ram;
> +};
> +
> +&pinctrl_usdhc1_100mhz {
> +	bootph-pre-ram;
> +};
> +
> +&pinctrl_usdhc1_200mhz {
> +	bootph-pre-ram;
> +};
> +
> +&wdog1 {
> +	bootph-pre-ram;
> +};
> +
> +&pinctrl_wdog {
> +	bootph-pre-ram;
> +};
> +
> +&pinctrl_ecspi1 {
> +	bootph-pre-ram;
> +};
> +
> +&pinctrl_i2c1 {
> +	bootph-pre-ram;
> +};
> +
> +&pinctrl_pmic {
> +	bootph-pre-ram;
> +};
> +
> +&pinctrl_uart3 {
> +	bootph-all;
> +};
> +
> +&iomuxc {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_hog>;
> +
> +	pinctrl_hog: hoggrp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_GPIO1_IO03_GPIO1_IO3		0x19 /* \SOM_RTC_INT */
> +			MX8MM_IOMUXC_GPIO1_IO09_GPIO1_IO9		0x184 /* SOM_DIS_ID0 */
> +			MX8MM_IOMUXC_GPIO1_IO10_GPIO1_IO10		0x184 /* SOM_DIS_ID1 */
> +			MX8MM_IOMUXC_GPIO1_IO11_GPIO1_IO11		0x184 /* SOM_DIS_ID2 */
> +			MX8MM_IOMUXC_SAI2_TXC_GPIO4_IO25		0x19 /* SOM_PCB_ID0 */
> +			MX8MM_IOMUXC_SAI2_TXD0_GPIO4_IO26		0x19 /* SOM_PCB_ID1 */
> +			MX8MM_IOMUXC_SAI2_MCLK_GPIO4_IO27		0x19 /* SOM_PCBA_ID0 */
> +			MX8MM_IOMUXC_SAI3_RXFS_GPIO4_IO28		0x19 /* SOM_PCBA_ID1 */
> +			MX8MM_IOMUXC_SAI5_RXFS_GPIO3_IO19		0x19 /* \SOM_STATLED_RES */
> +			MX8MM_IOMUXC_SAI5_RXC_GPIO3_IO20		0x19 /* \SOM_HUB_RES */
> +			MX8MM_IOMUXC_SAI5_RXD0_GPIO3_IO21		0x19 /* \SOM_SUPPLY_EN */
> +			MX8MM_IOMUXC_SAI5_RXD1_GPIO3_IO22		0x1c4 /* \SOM_COM_RES / version C */
> +			MX8MM_IOMUXC_SAI5_RXD2_GPIO3_IO23		0x184 /* SOM_DBG_GPIO0 */
> +			MX8MM_IOMUXC_SAI5_RXD3_GPIO3_IO24		0x184 /* SOM_DBG_GPIO1 */
> +			MX8MM_IOMUXC_SAI5_MCLK_GPIO3_IO25		0x184 /* SOM_DBG_GPIO2 */
> +			MX8MM_IOMUXC_SAI3_TXD_GPIO5_IO1			0x184 /* SOM_DBG_GPIO3 version C */
> +			MX8MM_IOMUXC_SAI1_TXD7_GPIO4_IO19		0x184 /* SOM_AUDIO_SD version E */
> +		>;
> +	};
> +
> +	pinctrl_sai1: sai1grp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SAI1_TXFS_SAI1_TX_SYNC		0xd6
> +			MX8MM_IOMUXC_SAI1_TXC_SAI1_TX_BCLK		0xd6
> +			MX8MM_IOMUXC_SAI1_TXD0_SAI1_TX_DATA0		0xd6
> +		>;
> +	};
> +
> +	pinctrl_i2c4: i2c4grp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL			0x400001c3
> +			MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA			0x400001c3
> +		>;
> +	};
> +
> +	pinctrl_sn65dsi83: sn65dsi83grp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_GPIO1_IO05_GPIO1_IO5		0x19 /* \SOM_DSI_INT */
> +		>;
> +	};
> +
> +	pinctrl_hog_status_led_controller: statusledcontrollergrp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SPDIF_RX_GPIO5_IO4			0x19
> +		>;
> +	};
> +
> +	pinctrl_pwm1: pwm1grp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SPDIF_EXT_CLK_PWM1_OUT		0x6
> +		>;
> +	};
> +
> +	pinctrl_pwm2: pwm2grp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SPDIF_RX_PWM2_OUT			0x6
> +		>;
> +	};
> +
> +	pinctrl_pwm3: pwm3grp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SPDIF_TX_PWM3_OUT			0x6
> +		>;
> +	};
> +
> +	pinctrl_touch: touchgrp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_GPIO1_IO01_GPIO1_IO1		0x19 /* \SOM_TOUCH_RES */
> +			MX8MM_IOMUXC_NAND_READY_B_GPIO3_IO16		0x19 /* \SOM_TOUCH_INT */
> +		>;
> +	};
> +
> +	pinctrl_usbc_controller: usbccontrollergrp {
> +		fsl,pins = <
> +			MX8MM_IOMUXC_GPIO1_IO06_GPIO1_IO6		0x19 /* \SOM_USBC_INT */
> +		>;
> +	};
> +
> +	pinctrl_uart1: uart1grp {
> +		bootph-pre-ram;
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX		0x140
> +			MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX		0x140
> +			MX8MM_IOMUXC_SAI2_RXD0_UART1_DCE_RTS_B		0x140
> +			MX8MM_IOMUXC_SAI2_TXFS_UART1_DCE_CTS_B		0x140
> +		>;
> +	};
> +
> +	pinctrl_usdhc2: usdhc2grp {
> +		bootph-pre-ram;
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x190
> +			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d0
> +			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d0
> +			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d0
> +			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d0
> +			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d0
> +			MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12		0x41
> +		>;
> +	};
> +
> +	pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
> +		bootph-pre-ram;
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x194
> +			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d4
> +			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d4
> +			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d4
> +			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d4
> +			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d4
> +			MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12		0x41
> +		>;
> +	};
> +
> +	pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
> +		bootph-pre-ram;
> +		fsl,pins = <
> +			MX8MM_IOMUXC_SD2_CLK_USDHC2_CLK			0x196
> +			MX8MM_IOMUXC_SD2_CMD_USDHC2_CMD			0x1d6
> +			MX8MM_IOMUXC_SD2_DATA0_USDHC2_DATA0		0x1d6
> +			MX8MM_IOMUXC_SD2_DATA1_USDHC2_DATA1		0x1d6
> +			MX8MM_IOMUXC_SD2_DATA2_USDHC2_DATA2		0x1d6
> +			MX8MM_IOMUXC_SD2_DATA3_USDHC2_DATA3		0x1d6
> +			MX8MM_IOMUXC_SD2_CD_B_GPIO2_IO12		0x41
> +		>;
> +	};
> +};
> --
> 2.47.2
>