Add out4.ru O4-iMX-NANO board
Board designed for quick prototyping and has one microSD port,
2 Ethernet ports, 2 USB ports, I2C, SPI, CAN, RS-485, GPIO,
UART interfaces, and 2 RGB LEDs.
Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/dts/o4-imx-nano.dts b/arch/arm/dts/o4-imx-nano.dts
new file mode 100644
index 0000000..d1785b7
--- /dev/null
+++ b/arch/arm/dts/o4-imx-nano.dts
@@ -0,0 +1,241 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (C) 2021 Oleh Kravchenko <oleg@kaa.org.ua>
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+
+#include "o4-imx6ull-nano.dtsi"
+
+/ {
+ model = "O4-iMX-NANO";
+ compatible = "out4,o4-imx-nano",
+ "out4,o4-imx6ull-nano",
+ "fsl,imx6ull";
+
+ aliases {
+ mmc1 = &usdhc1;
+ };
+
+ chosen {
+ stdout-path = &uart1;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led@0 {
+ color = <LED_COLOR_ID_RED>;
+ gpios = <&pcf8574a 0 GPIO_ACTIVE_LOW>;
+ reg = <0>;
+ };
+
+ led@1 {
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&pcf8574a 1 GPIO_ACTIVE_LOW>;
+ reg = <1>;
+ };
+
+ led@2 {
+ gpios = <&pcf8574a 2 GPIO_ACTIVE_LOW>;
+ color = <LED_COLOR_ID_BLUE>;
+ reg = <2>;
+ };
+
+ led@3 {
+ color = <LED_COLOR_ID_RED>;
+ gpios = <&pcf8574a 3 GPIO_ACTIVE_LOW>;
+ reg = <3>;
+ };
+
+ led@4 {
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&pcf8574a 4 GPIO_ACTIVE_LOW>;
+ reg = <4>;
+ };
+
+ led@5 {
+ color = <LED_COLOR_ID_BLUE>;
+ gpios = <&pcf8574a 5 GPIO_ACTIVE_LOW>;
+ reg = <5>;
+ };
+ };
+
+ usbotg1_vbus: reg_usbotg1_vbus {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&pcf8574a 6 GPIO_ACTIVE_HIGH>;
+ regulator-max-microvolt = <5000000>;
+ regulator-min-microvolt = <5000000>;
+ regulator-name = "usb0";
+ };
+
+ usbotg2_vbus: reg_usbotg2_vbus {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&pcf8574a 7 GPIO_ACTIVE_HIGH>;
+ regulator-max-microvolt = <5000000>;
+ regulator-min-microvolt = <5000000>;
+ regulator-name = "usb1";
+ };
+};
+
+&iomuxc {
+ pinctrl_uart1: uart1grp {
+ fsl,pins = <
+ MX6UL_PAD_UART1_RX_DATA__UART1_DCE_RX 0x1b0b1
+ MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
+ >;
+ };
+
+ pinctrl_usdhc1: usdhc1grp {
+ fsl,pins = <
+ MX6UL_PAD_SD1_CLK__USDHC1_CLK 0x10069
+ MX6UL_PAD_SD1_CMD__USDHC1_CMD 0x17059
+ 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__USDHC1_CD_B 0x03029
+ >;
+ };
+
+ pinctrl_mdio: mdiogrp {
+ fsl,pins = <
+ MX6UL_PAD_GPIO1_IO06__ENET2_MDIO 0x1b0b0
+ MX6UL_PAD_GPIO1_IO07__ENET2_MDC 0x1b0b0
+ MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01 0xb0b0 /* RST */
+ >;
+ };
+
+ pinctrl_i2c2: i2c2grp {
+ fsl,pins = <
+ MX6UL_PAD_CSI_HSYNC__I2C2_SCL 0x4001b8b0
+ MX6UL_PAD_CSI_VSYNC__I2C2_SDA 0x4001b8b0
+ >;
+ };
+
+ pinctrl_i2c2_gpio: i2c2gpiogrp {
+ fsl,pins = <
+ MX6UL_PAD_CSI_HSYNC__GPIO4_IO20 0x1b8b0
+ MX6UL_PAD_CSI_VSYNC__GPIO4_IO19 0x1b8b0
+ >;
+ };
+
+ pinctrl_can1: can1grp {
+ fsl,pins = <
+ MX6UL_PAD_LCD_DATA08__FLEXCAN1_TX 0x1b020
+ MX6UL_PAD_LCD_DATA09__FLEXCAN1_RX 0x1b020
+ >;
+ };
+
+ pinctrl_uart2: uart2grp {
+ fsl,pins = <
+ MX6UL_PAD_UART2_RX_DATA__UART2_DCE_RX 0x1b0b1
+ MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX 0x1b0b1
+ MX6UL_PAD_UART2_CTS_B__UART2_DCE_CTS 0x1b0b1
+ >;
+ };
+};
+
+&uart1 {
+ pinctrl-0 = <&pinctrl_uart1>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&usdhc1 {
+ bus-width = <4>;
+ no-1-8-v;
+ pinctrl-0 = <&pinctrl_usdhc1>;
+ pinctrl-names = "default";
+ status = "okay";
+ wakeup-source;
+};
+
+&fec1 {
+ phy-handle = <&phy0>;
+ phy-mode = "rmii";
+ pinctrl-0 = <&pinctrl_fec1>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&fec2 {
+ phy-handle = <&phy1>;
+ phy-mode = "rmii";
+ phy-reset-duration = <250>;
+ phy-reset-post-delay = <100>;
+ phy-reset-gpios = <&gpio5 1 GPIO_ACTIVE_LOW>;
+ pinctrl-0 = <&pinctrl_fec2 &pinctrl_mdio>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy0: ethernet-phy@0 {
+ clocks = <&clks IMX6UL_CLK_ENET_REF>;
+ clock-names = "rmii-ref";
+ interrupt-parent = <&gpio5>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ pinctrl-0 = <&pinctrl_phy0_irq>;
+ pinctrl-names = "default";
+ reg = <0>;
+ };
+
+ phy1: ethernet-phy@1 {
+ clocks = <&clks IMX6UL_CLK_ENET2_REF>;
+ clock-names = "rmii-ref";
+ interrupt-parent = <&gpio5>;
+ interrupts = <3 IRQ_TYPE_EDGE_FALLING>;
+ pinctrl-0 = <&pinctrl_phy1_irq>;
+ pinctrl-names = "default";
+ reg = <1>;
+ };
+ };
+};
+
+&usbotg1 {
+ dr_mode = "host";
+ status = "okay";
+ vbus-supply = <&usbotg1_vbus>;
+};
+
+&usbotg2 {
+ dr_mode = "host";
+ status = "okay";
+ vbus-supply = <&usbotg2_vbus>;
+};
+
+&i2c2 {
+ clock_frequency = <100000>;
+ pinctrl-0 = <&pinctrl_i2c2>;
+ pinctrl-1 = <&pinctrl_i2c2_gpio>;
+ pinctrl-names = "default", "gpio";
+ scl-gpios = <&gpio4 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ sda-gpios = <&gpio4 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ status = "okay";
+
+ pcf8574a: gpio@38 {
+ compatible = "nxp,pcf8574a";
+ #gpio-cells = <2>;
+ gpio-controller;
+ reg = <0x38>;
+ };
+};
+
+&can1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_can1>;
+ status = "okay";
+};
+
+&uart2 {
+ linux,rs485-enabled-at-boot-time;
+ pinctrl-0 = <&pinctrl_uart2>;
+ pinctrl-names = "default";
+ status = "okay";
+ uart-has-rtscts;
+};