@@ -1,2 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-nezha.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1s-mangopi-mq.dtb
new file mode 100644
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// Copyright (C) 2021-2022 Samuel Holland <samuel@sholland.org>
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/dts-v1/;
+
+#include "sun20i-d1.dtsi"
+#include "sun20i-common-regulators.dtsi"
+
+/ {
+ model = "Allwinner D1 Nezha";
+ compatible = "allwinner,d1-nezha", "allwinner,sun20i-d1";
+
+ aliases {
+ ethernet0 = &emac;
+ ethernet1 = &xr829;
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ reg_usbvbus: usbvbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usbvbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ gpio = <&pio 3 19 GPIO_ACTIVE_HIGH>; /* PD19 */
+ enable-active-high;
+ vin-supply = <®_vcc>;
+ };
+
+ /*
+ * This regulator is PWM-controlled, but the PWM controller is not
+ * yet supported, so fix the regulator to its default voltage.
+ */
+ reg_vdd_cpu: vdd-cpu {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd-cpu";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ vin-supply = <®_vcc>;
+ };
+
+ wifi_pwrseq: wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&pio 6 12 GPIO_ACTIVE_LOW>; /* PG12 */
+ };
+};
+
+&cpu0 {
+ cpu-supply = <®_vdd_cpu>;
+};
+
+&dcxo {
+ clock-frequency = <24000000>;
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ehci1 {
+ status = "okay";
+};
+
+&emac {
+ pinctrl-0 = <&rgmii_pe_pins>;
+ pinctrl-names = "default";
+ phy-handle = <&ext_rgmii_phy>;
+ phy-mode = "rgmii-id";
+ phy-supply = <®_vcc_3v3>;
+ status = "okay";
+};
+
+&i2c2 {
+ pinctrl-0 = <&i2c2_pb0_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ pcf8574a: gpio@38 {
+ compatible = "nxp,pcf8574a";
+ reg = <0x38>;
+ interrupt-parent = <&pio>;
+ interrupts = <1 2 IRQ_TYPE_LEVEL_LOW>; /* PB2 */
+ interrupt-controller;
+ gpio-controller;
+ #gpio-cells = <2>;
+ #interrupt-cells = <2>;
+ };
+};
+
+&mdio {
+ ext_rgmii_phy: ethernet-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <1>;
+ };
+};
+
+&mmc0 {
+ bus-width = <4>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>; /* PF6 */
+ disable-wp;
+ vmmc-supply = <®_vcc_3v3>;
+ vqmmc-supply = <®_vcc_3v3>;
+ pinctrl-0 = <&mmc0_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&mmc1 {
+ bus-width = <4>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ non-removable;
+ vmmc-supply = <®_vcc_3v3>;
+ vqmmc-supply = <®_vcc_3v3>;
+ pinctrl-0 = <&mmc1_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ xr829: wifi@1 {
+ reg = <1>;
+ interrupt-parent = <&pio>;
+ interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; /* PG10 */
+ interrupt-names = "host-wake";
+ };
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&ohci1 {
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-0 = <&uart0_pb8_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&uart1 {
+ uart-has-rtscts;
+ pinctrl-0 = <&uart1_pg6_pins>, <&uart1_pg8_rts_cts_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+
+ /* XR829 bluetooth is connected here */
+};
+
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
+&usbphy {
+ usb0_id_det-gpios = <&pio 3 21 GPIO_ACTIVE_HIGH>; /* PD21 */
+ usb0_vbus_det-gpios = <&pio 3 20 GPIO_ACTIVE_HIGH>; /* PD20 */
+ usb0_vbus-supply = <®_usbvbus>;
+ usb1_vbus-supply = <®_vcc>;
+ status = "okay";
+};