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diff --git a/dts/src/arm64/freescale/imx8mq-zii-ultra-rmb3.dts b/dts/src/arm64/freescale/imx8mq-zii-ultra-rmb3.dts
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--- /dev/null
+++ b/dts/src/arm64/freescale/imx8mq-zii-ultra-rmb3.dts
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2019 Zodiac Inflight Innovations
+ */
+
+/dts-v1/;
+
+#include "imx8mq-zii-ultra.dtsi"
+
+/ {
+ model = "ZII i.MX8MQ Ultra RMB3 Board";
+ compatible = "zii,imx8mq-ultra-rmb3", "zii,imx8mq-ultra", "fsl,imx8mq";
+};
+
+&ecspi1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ecspi1>;
+ cs-gpios = <&gpio5 9 GPIO_ACTIVE_HIGH>;
+ status = "okay";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ nor_flash: flash@0 {
+ compatible = "st,n25q128a13", "jedec,spi-nor";
+ spi-max-frequency = <20000000>;
+ reg = <0>;
+ };
+};
+
+&i2c2 {
+ temp-sense@48 {
+ compatible = "national,lm75";
+ reg = <0x48>;
+ };
+};
+
+&i2c4 {
+ touchscreen@20 {
+ compatible = "syna,rmi4-i2c";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ts>;
+ reg = <0x20>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rmi4-f01@1 {
+ reg = <0x1>;
+ syna,nosleep-mode = <2>;
+ };
+
+ rmi4-f11@11 {
+ reg = <0x11>;
+ touchscreen-inverted-x;
+ touchscreen-swapped-x-y;
+ syna,sensor-type = <1>;
+ };
+
+ rmi4-f12@12 {
+ reg = <0x12>;
+ touchscreen-inverted-x;
+ touchscreen-swapped-x-y;
+ syna,sensor-type = <1>;
+ };
+ };
+
+ touchscreen@2a {
+ compatible = "eeti,exc3000";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_ts>;
+ reg = <0x2a>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <12 IRQ_TYPE_LEVEL_LOW>;
+ touchscreen-inverted-x;
+ touchscreen-swapped-x-y;
+ status = "disabled";
+ };
+};
+
+&usbhub {
+ swap-dx-lanes = <0>;
+};
+
+&iomuxc {
+ pinctrl_ecspi1: ecspi1grp {
+ fsl,pins = <
+ MX8MQ_IOMUXC_ECSPI1_SS0_GPIO5_IO9 0x19
+ MX8MQ_IOMUXC_ECSPI1_SCLK_ECSPI1_SCLK 0x82
+ MX8MQ_IOMUXC_ECSPI1_MISO_ECSPI1_MISO 0x82
+ MX8MQ_IOMUXC_ECSPI1_MOSI_ECSPI1_MOSI 0x82
+ >;
+ };
+};