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@@ -0,0 +1,241 @@
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+// SPDX-License-Identifier: GPL-2.0+
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+// Copyright (C) 2021 Oleh Kravchenko <oleg@kaa.org.ua>
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+
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+/dts-v1/;
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+
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+#include <dt-bindings/leds/common.h>
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+
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+#include "o4-imx6ull-nano.dtsi"
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+
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+/ {
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+ model = "O4-iMX-NANO";
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+ compatible = "out4,o4-imx-nano",
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+ "out4,o4-imx6ull-nano",
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+ "fsl,imx6ull";
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+
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+ aliases {
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+ mmc1 = &usdhc1;
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+ };
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+
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+ chosen {
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+ stdout-path = &uart1;
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+ };
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+
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+ leds {
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+ compatible = "gpio-leds";
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+
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+ led@0 {
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+ color = <LED_COLOR_ID_RED>;
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+ gpios = <&pcf8574a 0 GPIO_ACTIVE_LOW>;
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+ reg = <0>;
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+ };
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+
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+ led@1 {
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+ color = <LED_COLOR_ID_GREEN>;
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+ gpios = <&pcf8574a 1 GPIO_ACTIVE_LOW>;
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+ reg = <1>;
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+ };
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+
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+ led@2 {
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+ gpios = <&pcf8574a 2 GPIO_ACTIVE_LOW>;
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+ color = <LED_COLOR_ID_BLUE>;
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+ reg = <2>;
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+ };
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+
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+ led@3 {
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+ color = <LED_COLOR_ID_RED>;
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+ gpios = <&pcf8574a 3 GPIO_ACTIVE_LOW>;
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+ reg = <3>;
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+ };
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+
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+ led@4 {
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+ color = <LED_COLOR_ID_GREEN>;
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+ gpios = <&pcf8574a 4 GPIO_ACTIVE_LOW>;
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+ reg = <4>;
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+ };
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+
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+ led@5 {
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+ color = <LED_COLOR_ID_BLUE>;
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+ gpios = <&pcf8574a 5 GPIO_ACTIVE_LOW>;
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+ reg = <5>;
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+ };
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+ };
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+
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+ usbotg1_vbus: reg_usbotg1_vbus {
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+ compatible = "regulator-fixed";
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+ enable-active-high;
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+ gpio = <&pcf8574a 6 GPIO_ACTIVE_HIGH>;
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+ regulator-max-microvolt = <5000000>;
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+ regulator-min-microvolt = <5000000>;
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+ regulator-name = "usb0";
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+ };
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+
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+ usbotg2_vbus: reg_usbotg2_vbus {
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+ compatible = "regulator-fixed";
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+ enable-active-high;
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+ gpio = <&pcf8574a 7 GPIO_ACTIVE_HIGH>;
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+ regulator-max-microvolt = <5000000>;
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+ regulator-min-microvolt = <5000000>;
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+ regulator-name = "usb1";
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+ };
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+};
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+
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+&iomuxc {
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+ pinctrl_uart1: uart1grp {
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+ fsl,pins = <
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+ MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX 0x1b0b1
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+ MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
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+ >;
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+ };
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+
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+ pinctrl_usdhc1: usdhc1grp {
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+ fsl,pins = <
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+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x10069
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+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x17059
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+ MX6UL_PAD_SD1_DATA0__USDHC1_DATA0 0x17059
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+ MX6UL_PAD_SD1_DATA1__USDHC1_DATA1 0x17059
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+ MX6UL_PAD_SD1_DATA2__USDHC1_DATA2 0x17059
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+ MX6UL_PAD_SD1_DATA3__USDHC1_DATA3 0x17059
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+ MX6UL_PAD_UART1_RTS_B__USDHC1_CD_B 0x03029
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+ >;
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+ };
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+
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+ pinctrl_mdio: mdiogrp {
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+ fsl,pins = <
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+ MX6UL_PAD_GPIO1_IO06__ENET2_MDIO 0x1b0b0
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+ MX6UL_PAD_GPIO1_IO07__ENET2_MDC 0x1b0b0
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+ MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01 0xb0b0 /* RST */
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+ >;
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+ };
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+
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+ pinctrl_i2c2: i2c2grp {
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+ fsl,pins = <
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+ MX6UL_PAD_CSI_HSYNC__I2C2_SCL 0x4001b8b0
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+ MX6UL_PAD_CSI_VSYNC__I2C2_SDA 0x4001b8b0
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+ >;
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+ };
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+
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+ pinctrl_i2c2_gpio: i2c2gpiogrp {
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+ fsl,pins = <
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+ MX6UL_PAD_CSI_HSYNC__GPIO4_IO20 0x1b8b0
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+ MX6UL_PAD_CSI_VSYNC__GPIO4_IO19 0x1b8b0
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+ >;
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+ };
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+
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+ pinctrl_can1: can1grp {
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+ fsl,pins = <
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+ MX6UL_PAD_LCD_DATA08__FLEXCAN1_TX 0x1b020
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+ MX6UL_PAD_LCD_DATA09__FLEXCAN1_RX 0x1b020
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+ >;
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+ };
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+
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+ pinctrl_uart2: uart2grp {
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+ fsl,pins = <
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+ MX6UL_PAD_UART2_RX_DATA__UART2_DCE_RX 0x1b0b1
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+ MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX 0x1b0b1
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+ MX6UL_PAD_UART2_CTS_B__UART2_DCE_CTS 0x1b0b1
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+ >;
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+ };
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+};
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+
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+&uart1 {
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+ pinctrl-0 = <&pinctrl_uart1>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+};
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+
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+&usdhc1 {
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+ bus-width = <4>;
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+ no-1-8-v;
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+ pinctrl-0 = <&pinctrl_usdhc1>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+ wakeup-source;
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+};
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+
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+&fec1 {
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+ phy-handle = <&phy0>;
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+ phy-mode = "rmii";
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+ pinctrl-0 = <&pinctrl_fec1>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+};
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+
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+&fec2 {
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+ phy-handle = <&phy1>;
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+ phy-mode = "rmii";
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+ phy-reset-duration = <250>;
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+ phy-reset-post-delay = <100>;
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+ phy-reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
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+ pinctrl-0 = <&pinctrl_fec2 &pinctrl_mdio>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+
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+ mdio {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ phy0: ethernet-phy@0 {
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+ clocks = <&clks IMX6UL_CLK_ENET_REF>;
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+ clock-names = "rmii-ref";
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+ interrupt-parent = <&gpio5>;
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+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
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+ pinctrl-0 = <&pinctrl_phy0_irq>;
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+ pinctrl-names = "default";
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+ reg = <0>;
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+ };
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+
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+ phy1: ethernet-phy@1 {
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+ clocks = <&clks IMX6UL_CLK_ENET2_REF>;
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+ clock-names = "rmii-ref";
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+ interrupt-parent = <&gpio5>;
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+ interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
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+ pinctrl-0 = <&pinctrl_phy1_irq>;
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+ pinctrl-names = "default";
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+ reg = <1>;
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+ };
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+ };
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+};
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+
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+&usbotg1 {
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+ dr_mode = "host";
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+ status = "okay";
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+ vbus-supply = <&usbotg1_vbus>;
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+};
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+
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+&usbotg2 {
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+ dr_mode = "host";
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+ status = "okay";
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+ vbus-supply = <&usbotg2_vbus>;
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+};
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+
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+&i2c2 {
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+ clock_frequency = <100000>;
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+ pinctrl-0 = <&pinctrl_i2c2>;
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+ pinctrl-1 = <&pinctrl_i2c2_gpio>;
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+ pinctrl-names = "default", "gpio";
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+ scl-gpios = <&gpio4 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
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+ sda-gpios = <&gpio4 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
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+ status = "okay";
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+
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+ pcf8574a: gpio@38 {
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+ compatible = "nxp,pcf8574a";
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+ #gpio-cells = <2>;
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+ gpio-controller;
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+ reg = <0x38>;
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+ };
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+};
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+
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+&can1 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&pinctrl_can1>;
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+ status = "okay";
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+};
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+
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+&uart2 {
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+ linux,rs485-enabled-at-boot-time;
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+ pinctrl-0 = <&pinctrl_uart2>;
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+ pinctrl-names = "default";
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+ status = "okay";
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+ uart-has-rtscts;
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+};
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