[PATCH v7 0/5] Add support for NetCube Systems Nagami SoM and its carrier boards

[PATCH v7 0/5] Add support for NetCube Systems Nagami SoM and its carrier boards

[Lukas Schmid]

This series adds support for the NetCube Systems Nagami SoM and its
associated carrier boards, the Nagami Basic Carrier and the Nagami Keypad
Carrier.

Changes in v7:
  - Fix the gpio numbering for the USB_SEC_EN gpio hog
  - Fix the gpio-line-names for the keypad carrier

Changes in v6:
  - Add 'usb0-enable-hog' to the som to enable the USB-OTG port by default
  - Update the keypad carrier dts to match actual board revision

Changes in v5:
  - Re-add the non-removable property to the ESP32 interface
  - Add the mmc-pwrseq node for the ESP32 to initialize the ESP32 correctly
  - Remove the unused ehci0 and ohci0 nodes from the Keypad Carrier since
    USB port is peripheral only

Changes in v4:
  - Disable the default interfaces on the card-edge but keep the pinctrl
    definitions for them
  - Split the pinctrl definitions for the SPI interface into the basic spi 
    pins and the hold/wp pins
  - Move some mmc0 properties to the Basic Carrier dts
  - Remove non-removable property from the ESP32 interface
  - Fix typo in the keypad matrix definition

Changes in v3:
  - Add missing dcxo node to the SoM dtsi
  - Rename the multi-led node
  - Change dr_mode to "peripheral" for the Keypad Carrier

Changes in v2:
 - Squash the binding patches into one patch
 - Fix formatting of the phy node in the SoM dtsi
 - Add description on where the phy is located in the SoM dtsi
 - Fix the phy address in the SoM dtsi
 - Move the carrier bindings into the same description as enums

Signed-off-by: Lukas Schmid <lukas.schmid@netcube.li>
---
Lukas Schmid (5):
  dt-bindings: arm: sunxi: Add NetCube Systems Nagami SoM and carrier
    board bindings
  riscv: dts: allwinner: d1s-t113: Add pinctrl's required by NetCube
    Systems Nagami SoM
  ARM: dts: sunxi: add support for NetCube Systems Nagami SoM
  ARM: dts: sunxi: add support for NetCube Systems Nagami Basic Carrier
  ARM: dts: sunxi: add support for NetCube Systems Nagami Keypad Carrier

 .../devicetree/bindings/arm/sunxi.yaml        |   8 +
 arch/arm/boot/dts/allwinner/Makefile          |   3 +
 ...n8i-t113s-netcube-nagami-basic-carrier.dts |  67 +++++
 ...8i-t113s-netcube-nagami-keypad-carrier.dts | 129 +++++++++
 .../allwinner/sun8i-t113s-netcube-nagami.dtsi | 249 ++++++++++++++++++
 .../boot/dts/allwinner/sunxi-d1s-t113.dtsi    |  48 ++++
 6 files changed, 504 insertions(+)
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-basic-carrier.dts
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-keypad-carrier.dts
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami.dtsi

-- 
2.39.5

[PATCH v7 1/5] dt-bindings: arm: sunxi: Add NetCube Systems Nagami SoM and carrier board bindings

[Lukas Schmid]

The NetCube Systems Nagami is an System on Module base on the Allwinner
T113s SoC. It is intended to be used in low cost devices which require
simple layouts and low BOM cost.

The NetCube Systems Nagami Basic Carrier Board is a simple carrier for the
Nagami SoM. It is intended to serve as a simple reference design for a
custom implementation or just evaluating the module with other peripherals

The NetCube Systems Nagami Keypad Carrier is a custom board intended to
fit a standard Ritto Intercom enclosure and provides a Keypad, NFC-Reader
and Status-LED all controllable over Ethernet with PoE support.

Signed-off-by: Lukas Schmid <lukas.schmid@netcube.li>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 Documentation/devicetree/bindings/arm/sunxi.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
index 7807ea613258..50f08d8d22f6 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
@@ -599,6 +599,14 @@ properties:
           - const: netcube,kumquat
           - const: allwinner,sun8i-v3s
 
+      - description: NetCube Systems Nagami SoM based boards
+        items:
+          - enum:
+              - netcube,nagami-basic-carrier
+              - netcube,nagami-keypad-carrier
+          - const: netcube,nagami
+          - const: allwinner,sun8i-t113s
+
       - description: NextThing Co. CHIP
         items:
           - const: nextthing,chip
-- 
2.39.5

[PATCH v7 2/5] riscv: dts: allwinner: d1s-t113: Add pinctrl's required by NetCube Systems Nagami SoM

[Lukas Schmid]

Added the following pinctrl's used by the NetCube Systems Nagami SoM
  * i2c2_pins
  * i2c3_pins
  * i2s1_pins, i2s1_din_pins, i2s1_dout_pins
  * spi1_pins, spi1_hold_pin, spi1_wp_pin

Signed-off-by: Lukas Schmid <lukas.schmid@netcube.li>
---
 .../boot/dts/allwinner/sunxi-d1s-t113.dtsi    | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
index e4175adb028d..c00996d6275c 100644
--- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
+++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
@@ -78,6 +78,36 @@ dsi_4lane_pins: dsi-4lane-pins {
 				function = "dsi";
 			};
 
+			/omit-if-no-ref/
+			i2c2_pins: i2c2-pins {
+				pins = "PD20", "PD21";
+				function = "i2c2";
+			};
+
+			/omit-if-no-ref/
+			i2c3_pins: i2c3-pins {
+				pins = "PG10", "PG11";
+				function = "i2c3";
+			};
+
+			/omit-if-no-ref/
+			i2s1_pins: i2s1-pins {
+				pins = "PG12", "PG13";
+				function = "i2s1";
+			};
+
+			/omit-if-no-ref/
+			i2s1_din_pins: i2s1-din-pins {
+				pins = "PG14";
+				function = "i2s1_din";
+			};
+
+			/omit-if-no-ref/
+			i2s1_dout_pins: i2s1-dout-pins {
+				pins = "PG15";
+				function = "i2s1_dout";
+			};
+
 			/omit-if-no-ref/
 			lcd_rgb666_pins: lcd-rgb666-pins {
 				pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5",
@@ -126,6 +156,24 @@ spi0_pins: spi0-pins {
 				function = "spi0";
 			};
 
+			/omit-if-no-ref/
+			spi1_pins: spi1-pins {
+				pins = "PD10", "PD11", "PD12", "PD13";
+				function = "spi1";
+			};
+
+			/omit-if-no-ref/
+			spi1_hold_pin: spi1-hold-pin {
+				pins = "PD14";
+				function = "spi1";
+			};
+
+			/omit-if-no-ref/
+			spi1_wp_pin: spi1-wp-pin {
+				pins = "PD15";
+				function = "spi1";
+			};
+
 			/omit-if-no-ref/
 			uart1_pg6_pins: uart1-pg6-pins {
 				pins = "PG6", "PG7";
-- 
2.39.5

[PATCH v7 3/5] ARM: dts: sunxi: add support for NetCube Systems Nagami SoM

[Lukas Schmid]

NetCube Systems Nagami SoM is a module based around the Allwinner T113s
SoC. It includes the following features and interfaces:

- 128MB DDR3 included in SoC
- 10/100 Mbps Ethernet using LAN8720A phy
- One USB-OTG interface
- One USB-Host interface
- One I2S interface with in and output support
- Two CAN interfaces
- ESP32 over SDIO
- One SPI interface
- I2C EEPROM for MAC address
- One QWIIC I2C Interface with dedicated interrupt pin shared with EEPROM
- One external I2C interface
- SD interface for external SD-Card

Signed-off-by: Lukas Schmid <lukas.schmid@netcube.li>
---
 .../allwinner/sun8i-t113s-netcube-nagami.dtsi | 249 ++++++++++++++++++
 1 file changed, 249 insertions(+)
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami.dtsi

diff --git a/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami.dtsi b/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami.dtsi
new file mode 100644
index 000000000000..013ab280a208
--- /dev/null
+++ b/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami.dtsi
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2025 Lukas Schmid <lukas.schmid@netcube.li>
+ */
+
+/dts-v1/;
+#include "sun8i-t113s.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	model = "NetCube Systems Nagami SoM";
+	compatible = "netcube,nagami", "allwinner,sun8i-t113s";
+
+	aliases {
+		serial1 = &uart1; // ESP32 Bootloader UART
+		serial3 = &uart3; // Console UART on Card Edge
+		ethernet0 = &emac;
+	};
+
+	chosen {
+		stdout-path = "serial3:115200n8";
+	};
+
+	/* module wide 3.3V supply directly from the card edge */
+	reg_vcc3v3: regulator-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc-3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	/* SY8008 DC/DC regulator on the board, also supplying VDD-SYS */
+	reg_vcc_core: regulator-core {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc-core";
+		regulator-min-microvolt = <880000>;
+		regulator-max-microvolt = <880000>;
+		vin-supply = <&reg_vcc3v3>;
+	};
+
+	/* Reset of ESP32 */
+	wifi_pwrseq: wifi-pwrseq {
+		compatible = "mmc-pwrseq-simple";
+		reset-gpios = <&pio 6 9 GPIO_ACTIVE_LOW>; /* PG9 */
+		post-power-on-delay-ms = <1500>;
+		power-off-delay-us = <200>;
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&reg_vcc_core>;
+};
+
+&cpu1 {
+	cpu-supply = <&reg_vcc_core>;
+};
+
+&dcxo {
+	clock-frequency = <24000000>;
+};
+
+&emac {
+	nvmem-cells = <&eth0_macaddress>;
+	nvmem-cell-names = "mac-address";
+	phy-handle = <&lan8720a>;
+	phy-mode = "rmii";
+	pinctrl-0 = <&rmii_pe_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+/* Default I2C Interface on Card-Edge */
+&i2c2 {
+	pinctrl-0 = <&i2c2_pins>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
+/* Exposed as the QWIIC connector and used by the internal EEPROM */
+&i2c3 {
+	pinctrl-0 = <&i2c3_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	eeprom0: eeprom@50 {
+		compatible = "atmel,24c02";		/* actually it's a 24AA02E48 */
+		reg = <0x50>;
+		pagesize = <16>;
+		read-only;
+		vcc-supply = <&reg_vcc3v3>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		eth0_macaddress: macaddress@fa {
+			reg = <0xfa 0x06>;
+		};
+	};
+};
+
+/* Default I2S Interface on Card-Edge */
+&i2s1 {
+	pinctrl-0 = <&i2s1_pins>, <&i2s1_din_pins>, <&i2s1_dout_pins>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
+/* Phy is on SoM. MDI signals pre-magentics are on the card edge */
+&mdio {
+	lan8720a: ethernet-phy@0 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <0>;
+	};
+};
+
+/* Default SD Interface on Card-Edge */
+&mmc0 {
+	pinctrl-0 = <&mmc0_pins>;
+	pinctrl-names = "default";
+	status = "disabled";
+};
+
+/* Connected to the on-board ESP32 */
+&mmc1 {
+	pinctrl-0 = <&mmc1_pins>;
+	pinctrl-names = "default";
+	vmmc-supply = <&reg_vcc3v3>;
+	bus-width = <4>;
+	non-removable;
+	mmc-pwrseq = <&wifi_pwrseq>;
+	status = "okay";
+};
+
+/* Connected to the on-board eMMC */
+&mmc2 {
+	pinctrl-0 = <&mmc2_pins>;
+	pinctrl-names = "default";
+	vmmc-supply = <&reg_vcc3v3>;
+	vqmmc-supply = <&reg_vcc3v3>;
+	bus-width = <4>;
+	non-removable;
+	status = "okay";
+};
+
+&pio {
+	vcc-pb-supply = <&reg_vcc3v3>;
+	vcc-pc-supply = <&reg_vcc3v3>;
+	vcc-pd-supply = <&reg_vcc3v3>;
+	vcc-pe-supply = <&reg_vcc3v3>;
+	vcc-pf-supply = <&reg_vcc3v3>;
+	vcc-pg-supply = <&reg_vcc3v3>;
+
+	gpio-line-names = "", "", "", "", // PA
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "CAN0_TX", "CAN0_RX", // PB
+					  "CAN1_TX", "CAN1_RX", "UART3_TX", "UART3_RX",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "eMMC_CLK", "eMMC_CMD", // PC
+					  "eMMC_D2", "eMMC_D1", "eMMC_D0", "eMMC_D3",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "", // PD
+					  "", "", "", "",
+					  "", "USB_SEC_EN", "SPI1_CS", "SPI1_CLK",
+					  "SPI1_MOSI", "SPI1_MISO", "SPI1_HOLD", "SPI1_WP",
+					  "PD16", "", "", "",
+					  "I2C2_SCL", "I2C2_SDA", "PD22", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "ETH_CRSDV", "ETH_RXD0", "ETH_RXD1", "ETH_TXCK", // PE
+					  "ETH_TXD0", "ETH_TXD1", "ETH_TXEN", "",
+					  "ETH_MDC", "ETH_MDIO", "QWIIC_nINT", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "SD_D1", "SD_D0", "SD_CLK", "SD_CLK", // PF
+					  "SD_D3", "SD_D2", "PF6", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "ESP_CLK", "ESP_CMD", "ESP_D0", "ESP_D1", // PG
+					  "ESP_D2", "ESP_D3", "UART1_TXD", "UART1_RXD",
+					  "ESP_nBOOT", "ESP_nRST", "I2C3_SCL", "I2C3_SDA",
+					  "I2S1_WS", "I2S1_CLK", "I2S1_DIN0", "I2S1_DOUT0",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "";
+
+	usb0-enable-hog {
+		gpio-hog;
+		gpios = <3 9 GPIO_ACTIVE_HIGH>;
+		line-name = "USB_SEC_EN";
+		output-high;
+	};
+};
+
+/* Remove the unused CK pin from the pinctl as it is unconnected */
+&rmii_pe_pins {
+	pins = "PE0", "PE1", "PE2", "PE3", "PE4",
+		   "PE5", "PE6", "PE8", "PE9";
+};
+
+/* Default SPI Interface on Card-Edge */
+&spi1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	pinctrl-0 = <&spi1_pins>, <&spi1_hold_pin>, <&spi1_wp_pin>;
+	pinctrl-names = "default";
+	cs-gpios = <0>;
+	status = "disabled";
+};
+
+/* Connected to the Bootloader/Console of the ESP32 */
+&uart1 {
+	pinctrl-0 = <&uart1_pg6_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+/* Console/Debug UART on Card-Edge */
+&uart3 {
+	pinctrl-0 = <&uart3_pb_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
-- 
2.39.5

[PATCH v7 4/5] ARM: dts: sunxi: add support for NetCube Systems Nagami Basic Carrier

[Lukas Schmid]

The NetCube Systems Nagami Basic Carrier is a Carrier for the Nagami SoM
It provides an ethernet port for the phy on the SoM and some USB-Ports.
All other interfaces and gpios are available on pinheader, except for the
SD-Interface which is available on a micro-sd slot.

Signed-off-by: Lukas Schmid <lukas.schmid@netcube.li>
---
 arch/arm/boot/dts/allwinner/Makefile          |  2 +
 ...n8i-t113s-netcube-nagami-basic-carrier.dts | 67 +++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-basic-carrier.dts

diff --git a/arch/arm/boot/dts/allwinner/Makefile b/arch/arm/boot/dts/allwinner/Makefile
index d799ad153b37..af287bb3231c 100644
--- a/arch/arm/boot/dts/allwinner/Makefile
+++ b/arch/arm/boot/dts/allwinner/Makefile
@@ -199,6 +199,7 @@ DTC_FLAGS_sun8i-h3-nanopi-r1 := -@
 DTC_FLAGS_sun8i-h3-orangepi-pc := -@
 DTC_FLAGS_sun8i-h3-bananapi-m2-plus-v1.2 := -@
 DTC_FLAGS_sun8i-h3-orangepi-pc-plus := -@
+DTC_FLAGS_sun8i-t113s-netcube-nagami-basic-carrier := -@
 DTC_FLAGS_sun8i-v3s-netcube-kumquat := -@
 dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-a23-evb.dtb \
@@ -257,6 +258,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-s3-lichee-zero-plus.dtb \
 	sun8i-s3-pinecube.dtb \
 	sun8i-t113s-mangopi-mq-r-t113.dtb \
+	sun8i-t113s-netcube-nagami-basic-carrier.dtb \
 	sun8i-t3-cqa3t-bv3.dtb \
 	sun8i-v3-sl631-imx179.dtb \
 	sun8i-v3s-anbernic-rg-nano.dtb \
diff --git a/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-basic-carrier.dts b/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-basic-carrier.dts
new file mode 100644
index 000000000000..5ee9a211a5cc
--- /dev/null
+++ b/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-basic-carrier.dts
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2025 Lukas Schmid <lukas.schmid@netcube.li>
+ */
+
+/dts-v1/;
+#include "sun8i-t113s-netcube-nagami.dtsi"
+
+/ {
+	model = "NetCube Systems Nagami Basic Carrier Board";
+	compatible = "netcube,nagami-basic-carrier", "netcube,nagami",
+				 "allwinner,sun8i-t113s";
+};
+
+&can0 {
+	status = "okay";
+};
+
+&can1 {
+	status = "okay";
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&i2s1 {
+	status = "okay";
+};
+
+&mmc0 {
+	vmmc-supply = <&reg_vcc3v3>;
+	broken-cd;
+	disable-wp;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&spi1 {
+	status = "okay";
+};
+
+&usb_otg {
+	dr_mode = "otg";
+	status = "okay";
+};
+
+&usbphy {
+	usb0_id_det-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+	status = "okay";
+};
-- 
2.39.5

[PATCH v7 5/5] ARM: dts: sunxi: add support for NetCube Systems Nagami Keypad Carrier

[Lukas Schmid]

The NetCube Systems Nagami Keypad Carrier uses the Nagami SoM and contains
a TCA8418 connected to a 4x4 matrix keypad. The I2C2 interface is connected
to said TCA8418 and also a header for an PN532 NFC-Module. It also provides
a pin-header for a bi-color status led. Ethernet with PoE support is
available on a screwterminal after magnetics.

Signed-off-by: Lukas Schmid <lukas.schmid@netcube.li>
---
 arch/arm/boot/dts/allwinner/Makefile          |   1 +
 ...8i-t113s-netcube-nagami-keypad-carrier.dts | 129 ++++++++++++++++++
 2 files changed, 130 insertions(+)
 create mode 100644 arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-keypad-carrier.dts

diff --git a/arch/arm/boot/dts/allwinner/Makefile b/arch/arm/boot/dts/allwinner/Makefile
index af287bb3231c..a2137bbe2230 100644
--- a/arch/arm/boot/dts/allwinner/Makefile
+++ b/arch/arm/boot/dts/allwinner/Makefile
@@ -259,6 +259,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
 	sun8i-s3-pinecube.dtb \
 	sun8i-t113s-mangopi-mq-r-t113.dtb \
 	sun8i-t113s-netcube-nagami-basic-carrier.dtb \
+	sun8i-t113s-netcube-nagami-keypad-carrier.dtb \
 	sun8i-t3-cqa3t-bv3.dtb \
 	sun8i-v3-sl631-imx179.dtb \
 	sun8i-v3s-anbernic-rg-nano.dtb \
diff --git a/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-keypad-carrier.dts b/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-keypad-carrier.dts
new file mode 100644
index 000000000000..048a6245684a
--- /dev/null
+++ b/arch/arm/boot/dts/allwinner/sun8i-t113s-netcube-nagami-keypad-carrier.dts
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2025 Lukas Schmid <lukas.schmid@netcube.li>
+ */
+
+/dts-v1/;
+#include "sun8i-t113s-netcube-nagami.dtsi"
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	model = "NetCube Systems Nagami Keypad Carrier Board";
+	compatible = "netcube,nagami-keypad-carrier", "netcube,nagami",
+				 "allwinner,sun8i-t113s";
+
+	leds {
+		compatible = "gpio-leds";
+
+		led_status_red: led-status-red {
+			gpios = <&pio 3 16 GPIO_ACTIVE_HIGH>;  /* PD16 */
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_STATUS;
+		};
+
+		led_status_green: led-status-green {
+			gpios = <&pio 3 22 GPIO_ACTIVE_HIGH>;  /* PD22 */
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_STATUS;
+		};
+	};
+};
+
+&i2c2 {
+	status = "okay";
+
+	tca8418: keypad@34 {
+		compatible = "ti,tca8418";
+		reg = <0x34>;
+		interrupts-extended = <&pio 5 6 IRQ_TYPE_EDGE_FALLING>;  /* PF6 */
+		linux,keymap = <MATRIX_KEY(0x03, 0x00, KEY_NUMERIC_A)
+						MATRIX_KEY(0x03, 0x01, KEY_NUMERIC_1)
+						MATRIX_KEY(0x03, 0x02, KEY_NUMERIC_2)
+						MATRIX_KEY(0x03, 0x03, KEY_NUMERIC_3)
+						MATRIX_KEY(0x02, 0x00, KEY_NUMERIC_B)
+						MATRIX_KEY(0x02, 0x01, KEY_NUMERIC_4)
+						MATRIX_KEY(0x02, 0x02, KEY_NUMERIC_5)
+						MATRIX_KEY(0x02, 0x03, KEY_NUMERIC_6)
+						MATRIX_KEY(0x01, 0x00, KEY_NUMERIC_C)
+						MATRIX_KEY(0x01, 0x01, KEY_NUMERIC_7)
+						MATRIX_KEY(0x01, 0x02, KEY_NUMERIC_8)
+						MATRIX_KEY(0x01, 0x03, KEY_NUMERIC_9)
+						MATRIX_KEY(0x00, 0x00, KEY_NUMERIC_D)
+						MATRIX_KEY(0x00, 0x01, KEY_CLEAR)
+						MATRIX_KEY(0x00, 0x02, KEY_NUMERIC_0)
+						MATRIX_KEY(0x00, 0x03, KEY_OK)
+		>;
+		keypad,num-rows = <4>;
+		keypad,num-columns = <4>;
+	};
+};
+
+&pio {
+	gpio-line-names = "", "", "", "", // PA
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "", // PB
+					  "", "", "UART3_TX", "UART3_RX",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "eMMC_CLK", "eMMC_CMD", // PC
+					  "eMMC_D2", "eMMC_D1", "eMMC_D0", "eMMC_D3",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "", // PD
+					  "", "", "", "",
+					  "", "USB_SEC_EN", "", "",
+					  "", "", "", "",
+					  "LED_STATUS_RED", "", "", "",
+					  "I2C2_SCL", "I2C2_SDA", "LED_STATUS_GREEN", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "ETH_CRSDV", "ETH_RXD0", "ETH_RXD1", "ETH_TXCK", // PE
+					  "ETH_TXD0", "ETH_TXD1", "ETH_TXEN", "",
+					  "ETH_MDC", "ETH_MDIO", "QWIIC_nINT", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "", // PF
+					  "", "", "KEY_nINT", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "ESP_CLK", "ESP_CMD", "ESP_D0", "ESP_D1", // PG
+					  "ESP_D2", "ESP_D3", "UART1_TXD", "UART1_RXD",
+					  "ESP_nBOOT", "ESP_nRST", "I2C3_SCL", "I2C3_SDA",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "",
+					  "", "", "", "";
+};
+
+&usb_otg {
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usbphy {
+	status = "okay";
+};
-- 
2.39.5