Subject: [PATCH v1 3/3] ARM: dts: sunxi: add support for NetCube Systems OpenNMC (dobermann)

From: Lukas Schmid <[email-masked]>
Date: Thu, 4 Jun 2026 13:52:34 +0200

NetCube Systems OpenNMC is an open replacement for APC SmartSlot Management
Cards. It is based on the Nagami System-on-Module. It breaks out the
following interfaces:

- 10/100 Mbps Ethernet
- USB Type-C OTG using a TUSB320 (usb0)
- USB Type-C Console Port using a CH340 (uart3)
- USB Type-A Host with internal CH334 USB-Hub (usb1)
- MicroSD Slot with Card-Detect (mmc0)
- WiFi/Bluetooth using the modules built-in ESP32
- SmartSlot serial interface (uart4)
- DS3232 RTC with CR1220 Battery Backup
- Extension connector providing SPI,I2C,USB,CAN,UART for future use.

Signed-off-by: Lukas Schmid <[email-masked]>
---
 .../sun8i-t113s-netcube-dobermann.dts         | 149 ++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-dobermann.dts

diff --git a/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-dobermann.dts b/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-dobermann.dts
new file mode 100644
index 000000000000..97dd4b950dd8
--- /dev/null
+++ b/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-dobermann.dts
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2026 Lukas Schmid <[email-masked]>
+ */
+
+/dts-v1/;
+#include "sun8i-t113s-netcube-nagami.dtsi"
+
+#include <dt-bindings/leds/common.h>
+
+/ {
+	model = "NetCube Systems OpenNMC (dobermann)";
+	compatible = "netcube,dobermann", "netcube,nagami",
+		     "allwinner,sun8i-t113s";
+
+	aliases {
+		serial2 = &uart4; // UART on SmartSlot
+		rtc0 = &ds3232;
+		rtc1 = &rtc; // not battery backed
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_heartbeat_green: led-heartbeat-green {
+			gpios = <&pio 6 14 GPIO_ACTIVE_HIGH>; /* PG14 */
+			linux,default-trigger = "heartbeat";
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_HEARTBEAT;
+		};
+	};
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&i2c2 {
+	status = "okay";
+
+	tusb320: typec@60 {
+		compatible = "ti,tusb320";
+		reg = <0x60>;
+		interrupts-extended = <&pio 3 22 IRQ_TYPE_LEVEL_LOW>;  /* PD22 */
+	};
+
+	ds3232: rtc@68 {
+		compatible = "dallas,ds3232";
+		reg = <0x68>;
+	};
+};
+
+/* microSD Card Slot on the board */
+&mmc0 {
+	vmmc-supply = <&reg_vcc3v3>;
+	disable-wp;
+	bus-width = <4>;
+	cd-gpios = <&pio 6 15 GPIO_ACTIVE_LOW>; /* PG15 */
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&pio {
+	gpio-line-names = "", "", "", "", // PA
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "SMART_TX", "SMART_RX", // PB
+			  "EXT_IO3", "EXT_IO2", "CONSOLE_TX", "CONSOLE_RX",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "eMMC_CLK", "eMMC_CMD", // PC
+			  "eMMC_D2", "eMMC_D1", "eMMC_D0", "eMMC_D3",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "", // PD
+			  "", "", "", "",
+			  "", "USB_SEC_EN", "EXT_SPI_nCS", "EXT_SPI_SCK",
+			  "EXT_SPI_MOSI", "EXT_SPI_MISO", "EXT_IO5", "EXT_IO4",
+			  "SMART_SEL", "", "", "",
+			  "I2C3_SCL", "I2C3_SDA", "TUSB320_nINT", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "ETH_CRSDV", "ETH_RXD0", "ETH_RXD1", "ETH_TXCK", // PE
+			  "ETH_TXD0", "ETH_TXD1", "ETH_TXEN", "",
+			  "ETH_MDC", "ETH_MDIO", "I2C3_nINT", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "uSD_D1", "uSD_D0", "uSD_CLK", "uSD_CLK", // PF
+			  "uSD_D3", "uSD_D2", "TUSB320_ID", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "ESP_CLK", "ESP_CMD", "ESP_D0", "ESP_D1", // PG
+			  "ESP_D2", "ESP_D3", "ESP_TXD", "ESP_RXD",
+			  "ESP_nBOOT", "ESP_nRST", "I2C2_SCL", "I2C2_SDA",
+			  "EXT_IO1", "EXT_IO0", "LED_HEARTBEAT", "SD_DETECT",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "",
+			  "", "", "", "";
+};
+
+/* SmartSlot serial */
+&uart4 {
+	pinctrl-0 = <&uart4_pb_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&usb_otg {
+	extcon = <&tusb320 0>;
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usbphy {
+	usb0_id_det-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+	status = "okay";
+};
-- 
2.47.3