ARM: dts: am335x: add support for Moxa UC-2101 open platform

Add support for Moxa UC-2101 open platform

The UC-2101 computing platform is designed for industrial embedded
data acquisition and processing applications.

The features of UC-2101 are:
* eMMC
* SPI flash
* 1x LAN
* 1x RS-232/422/485 ports, software-selectable
* EEPROM
* TPM 2.0
* Watchdog
* RTC
* User gpio-keys
* User LEDs
* User button
Signed-off-by: Wes Huang (黃淵河) <wes.huang@moxa.com>
Signed-off-by: Fero JD Zhou (周俊達) <FeroJD.Zhou@moxa.com>
Signed-off-by: SZ Lin (林上智) <sz.lin@moxa.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/Makefile

@@ -707,6 +707,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
 	am335x-evmsk.dtb \
 	am335x-icev2.dtb \
 	am335x-lxm.dtb \
+	am335x-moxa-uc-2101.dtb \
 	am335x-moxa-uc-8100-me-t.dtb \
 	am335x-nano.dtb \
 	am335x-pdu001.dtb \

arch/arm/boot/dts/am335x-moxa-uc-2101.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018 MOXA Inc. - https://www.moxa.com/
+ *
+ * Authors: SZ Lin (林上智) <sz.lin@moxa.com>
+ *          Wes Huang (黃淵河) <wes.huang@moxa.com>
+ *          Fero JD Zhou (周俊達) <FeroJD.Zhou@moxa.com>
+ */
+
+/dts-v1/;
+
+#include "am335x-moxa-uc-2100-common.dtsi"
+
+/ {
+	model = "Moxa UC-2101";
+	compatible = "moxa,uc-2101", "ti,am33xx";
+
+	leds {
+		compatible = "gpio-leds";
+		led1 {
+			label = "UC2100:GREEN:USER";
+			gpios = <&gpio3 10 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+	};
+};
+
+&am33xx_pinmux {
+	pinctrl-names = "default";
+
+	cpsw_default: cpsw_default {
+		pinctrl-single,pins = <
+			/* Slave 1 */
+			AM33XX_IOPAD(0x90c, PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_crs.rmii1_crs_dv */
+			AM33XX_IOPAD(0x910, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxerr.rmii1_rxerr */
+			AM33XX_IOPAD(0x914, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txen.rmii1_txen */
+			AM33XX_IOPAD(0x924, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txd1.rmii1_txd1 */
+			AM33XX_IOPAD(0x928, PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txd0.rmii1_txd0 */
+			AM33XX_IOPAD(0x93c, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxd1.rmii1_rxd1 */
+			AM33XX_IOPAD(0x940, PIN_INPUT_PULLUP | MUX_MODE1)	/* mii1_rxd0.rmii1_rxd0 */
+			AM33XX_IOPAD(0x944, PIN_INPUT_PULLDOWN | MUX_MODE0)	/* mii1_refclk.rmii1_refclk */
+		>;
+	};
+
+	spi1_pins: pinmux_spi1 {
+		pinctrl-single,pins = <
+			AM33XX_IOPAD(0x964, PIN_INPUT_PULLUP | MUX_MODE4)	 /* ecap0_in_pwm0_out.spi1_sclk */
+			AM33XX_IOPAD(0x978, PIN_INPUT_PULLUP | MUX_MODE4)	 /* uart1_ctsn.spi1_cs0 */
+			AM33XX_IOPAD(0x968, PIN_INPUT_PULLUP | MUX_MODE4)	 /* uart0_ctsn.spi1_d0 */
+			AM33XX_IOPAD(0x96c, PIN_INPUT_PULLUP | MUX_MODE4)	 /* uart0_rtsn.spi1_d1 */
+		>;
+	};
+};
+
+&davinci_mdio {
+	phy0: ethernet-phy@4 {
+		reg = <4>;
+	};
+};
+
+&cpsw_emac0 {
+	status = "okay";
+	phy-handle = <&phy0>;
+	phy-mode = "rmii";
+};
+
+&cpsw_emac1 {
+	status = "disabled";
+};