diff --git a/arch/arm/dts/sun50i-a64.dtsi b/arch/arm/dts/sun50i-a64.dtsi
index 135762b34fd..2240eaec5dd 100644
--- a/arch/arm/dts/sun50i-a64.dtsi
+++ b/arch/arm/dts/sun50i-a64.dtsi
@@ -93,6 +93,7 @@
 		L2: l2-cache {
 			compatible = "cache";
 			cache-level = <2>;
+			cache-unified;
 		};
 	};
 
@@ -407,7 +408,7 @@
 			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&ccu CLK_BUS_TCON0>, <&ccu CLK_TCON0>;
 			clock-names = "ahb", "tcon-ch0";
-			clock-output-names = "tcon-pixel-clock";
+			clock-output-names = "tcon-data-clock";
 			#clock-cells = <0>;
 			resets = <&ccu RST_BUS_TCON0>, <&ccu RST_BUS_LVDS>;
 			reset-names = "lcd", "lvds";
diff --git a/arch/arm/dts/sun50i-h6-pine-h64-model-b.dts b/arch/arm/dts/sun50i-h6-pine-h64-model-b.dts
index 686f58e7700..b710f1a0f53 100644
--- a/arch/arm/dts/sun50i-h6-pine-h64-model-b.dts
+++ b/arch/arm/dts/sun50i-h6-pine-h64-model-b.dts
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
  * Copyright (C) 2019 Corentin LABBE <clabbe@baylibre.com>
  */
diff --git a/arch/arm/dts/sun50i-h616-orangepi-zero.dtsi b/arch/arm/dts/sun50i-h616-orangepi-zero.dtsi
new file mode 100644
index 00000000000..15290e6892f
--- /dev/null
+++ b/arch/arm/dts/sun50i-h616-orangepi-zero.dtsi
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2020 Arm Ltd.
+ *
+ * DT nodes common between Orange Pi Zero 2 and Orange Pi Zero 3.
+ * Excludes PMIC nodes and properties, since they are different between the two.
+ */
+
+#include "sun50i-h616.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	aliases {
+		ethernet0 = &emac0;
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			function = LED_FUNCTION_POWER;
+			color = <LED_COLOR_ID_RED>;
+			gpios = <&pio 2 12 GPIO_ACTIVE_HIGH>; /* PC12 */
+			default-state = "on";
+		};
+
+		led-1 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&pio 2 13 GPIO_ACTIVE_HIGH>; /* PC13 */
+		};
+	};
+
+	reg_vcc5v: vcc5v {
+		/* board wide 5V supply directly from the USB-C socket */
+		compatible = "regulator-fixed";
+		regulator-name = "vcc-5v";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
+	reg_usb1_vbus: regulator-usb1-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "usb1-vbus";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		vin-supply = <&reg_vcc5v>;
+		enable-active-high;
+		gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>; /* PC16 */
+	};
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+/* USB 2 & 3 are on headers only. */
+
+&emac0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ext_rgmii_pins>;
+	phy-mode = "rgmii";
+	phy-handle = <&ext_rgmii_phy>;
+	allwinner,rx-delay-ps = <3100>;
+	allwinner,tx-delay-ps = <700>;
+	status = "okay";
+};
+
+&mdio0 {
+	ext_rgmii_phy: ethernet-phy@1 {
+		compatible = "ethernet-phy-ieee802.3-c22";
+		reg = <1>;
+	};
+};
+
+&mmc0 {
+	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;	/* PF6 */
+	bus-width = <4>;
+	status = "okay";
+};
+
+&ohci1 {
+	status = "okay";
+};
+
+&spi0  {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
+
+	flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+	};
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_ph_pins>;
+	status = "okay";
+};
+
+&usbotg {
+	/*
+	 * PHY0 pins are connected to a USB-C socket, but a role switch
+	 * is not implemented: both CC pins are pulled to GND.
+	 * The VBUS pins power the device, so a fixed peripheral mode
+	 * is the best choice.
+	 * The board can be powered via GPIOs, in this case port0 *can*
+	 * act as a host (with a cable/adapter ignoring CC), as VBUS is
+	 * then provided by the GPIOs. Any user of this setup would
+	 * need to adjust the DT accordingly: dr_mode set to "host",
+	 * enabling OHCI0 and EHCI0.
+	 */
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usbphy {
+	usb1_vbus-supply = <&reg_usb1_vbus>;
+	status = "okay";
+};
diff --git a/arch/arm/dts/sun50i-h616-orangepi-zero2.dts b/arch/arm/dts/sun50i-h616-orangepi-zero2.dts
index cb8600d0ea1..d83852e72f0 100644
--- a/arch/arm/dts/sun50i-h616-orangepi-zero2.dts
+++ b/arch/arm/dts/sun50i-h616-orangepi-zero2.dts
@@ -1,99 +1,23 @@
-// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
  * Copyright (C) 2020 Arm Ltd.
  */
 
 /dts-v1/;
 
-#include "sun50i-h616.dtsi"
-
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/interrupt-controller/arm-gic.h>
-#include <dt-bindings/leds/common.h>
+#include "sun50i-h616-orangepi-zero.dtsi"
 
 / {
 	model = "OrangePi Zero2";
 	compatible = "xunlong,orangepi-zero2", "allwinner,sun50i-h616";
-
-	aliases {
-		ethernet0 = &emac0;
-		serial0 = &uart0;
-	};
-
-	chosen {
-		stdout-path = "serial0:115200n8";
-	};
-
-	leds {
-		compatible = "gpio-leds";
-
-		led-0 {
-			function = LED_FUNCTION_POWER;
-			color = <LED_COLOR_ID_RED>;
-			gpios = <&pio 2 12 GPIO_ACTIVE_HIGH>; /* PC12 */
-			default-state = "on";
-		};
-
-		led-1 {
-			function = LED_FUNCTION_STATUS;
-			color = <LED_COLOR_ID_GREEN>;
-			gpios = <&pio 2 13 GPIO_ACTIVE_HIGH>; /* PC13 */
-		};
-	};
-
-	reg_vcc5v: vcc5v {
-		/* board wide 5V supply directly from the USB-C socket */
-		compatible = "regulator-fixed";
-		regulator-name = "vcc-5v";
-		regulator-min-microvolt = <5000000>;
-		regulator-max-microvolt = <5000000>;
-		regulator-always-on;
-	};
-
-	reg_usb1_vbus: regulator-usb1-vbus {
-		compatible = "regulator-fixed";
-		regulator-name = "usb1-vbus";
-		regulator-min-microvolt = <5000000>;
-		regulator-max-microvolt = <5000000>;
-		vin-supply = <&reg_vcc5v>;
-		enable-active-high;
-		gpio = <&pio 2 16 GPIO_ACTIVE_HIGH>; /* PC16 */
-	};
 };
 
-&ehci1 {
-	status = "okay";
-};
-
-/* USB 2 & 3 are on headers only. */
-
 &emac0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&ext_rgmii_pins>;
-	phy-mode = "rgmii";
-	phy-handle = <&ext_rgmii_phy>;
 	phy-supply = <&reg_dcdce>;
-	allwinner,rx-delay-ps = <3100>;
-	allwinner,tx-delay-ps = <700>;
-	status = "okay";
-};
-
-&mdio0 {
-	ext_rgmii_phy: ethernet-phy@1 {
-		compatible = "ethernet-phy-ieee802.3-c22";
-		reg = <1>;
-	};
 };
 
 &mmc0 {
 	vmmc-supply = <&reg_dcdce>;
-	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;	/* PF6 */
-	bus-width = <4>;
-	status = "okay";
-};
-
-&ohci1 {
-	status = "okay";
 };
 
 &r_rsb {
@@ -211,44 +135,3 @@
 	vcc-ph-supply = <&reg_aldo1>;
 	vcc-pi-supply = <&reg_aldo1>;
 };
-
-&spi0  {
-	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&spi0_pins>, <&spi0_cs0_pin>;
-
-	flash@0 {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		compatible = "jedec,spi-nor";
-		reg = <0>;
-		spi-max-frequency = <40000000>;
-	};
-};
-
-&uart0 {
-	pinctrl-names = "default";
-	pinctrl-0 = <&uart0_ph_pins>;
-	status = "okay";
-};
-
-&usbotg {
-	/*
-	 * PHY0 pins are connected to a USB-C socket, but a role switch
-	 * is not implemented: both CC pins are pulled to GND.
-	 * The VBUS pins power the device, so a fixed peripheral mode
-	 * is the best choice.
-	 * The board can be powered via GPIOs, in this case port0 *can*
-	 * act as a host (with a cable/adapter ignoring CC), as VBUS is
-	 * then provided by the GPIOs. Any user of this setup would
-	 * need to adjust the DT accordingly: dr_mode set to "host",
-	 * enabling OHCI0 and EHCI0.
-	 */
-	dr_mode = "peripheral";
-	status = "okay";
-};
-
-&usbphy {
-	usb1_vbus-supply = <&reg_usb1_vbus>;
-	status = "okay";
-};
diff --git a/arch/arm/dts/sun50i-h616-x96-mate.dts b/arch/arm/dts/sun50i-h616-x96-mate.dts
index 07424c28b69..959b6fd1848 100644
--- a/arch/arm/dts/sun50i-h616-x96-mate.dts
+++ b/arch/arm/dts/sun50i-h616-x96-mate.dts
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
  * Copyright (C) 2021 Arm Ltd.
  */
diff --git a/arch/arm/dts/sun50i-h618-orangepi-zero3.dts b/arch/arm/dts/sun50i-h618-orangepi-zero3.dts
new file mode 100644
index 00000000000..00fe28caac9
--- /dev/null
+++ b/arch/arm/dts/sun50i-h618-orangepi-zero3.dts
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2023 Arm Ltd.
+ */
+
+/dts-v1/;
+
+#include "sun50i-h616-orangepi-zero.dtsi"
+
+/ {
+	model = "OrangePi Zero3";
+	compatible = "xunlong,orangepi-zero3", "allwinner,sun50i-h618";
+};
+
+&emac0 {
+	phy-supply = <&reg_dldo1>;
+};
+
+&ext_rgmii_phy {
+	motorcomm,clk-out-frequency-hz = <125000000>;
+};
+
+&mmc0 {
+	/*
+	 * The schematic shows the card detect pin wired up to PF6, via an
+	 * inverter, but it just doesn't work.
+	 */
+	broken-cd;
+	vmmc-supply = <&reg_dldo1>;
+};
+
+&r_i2c {
+	status = "okay";
+
+	axp313: pmic@36 {
+		compatible = "x-powers,axp313a";
+		reg = <0x36>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		interrupt-parent = <&pio>;
+		interrupts = <2 9 IRQ_TYPE_LEVEL_LOW>;	/* PC9 */
+
+		vin1-supply = <&reg_vcc5v>;
+		vin2-supply = <&reg_vcc5v>;
+		vin3-supply = <&reg_vcc5v>;
+
+		regulators {
+			/* Supplies VCC-PLL, so needs to be always on. */
+			reg_aldo1: aldo1 {
+				regulator-always-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc1v8";
+			};
+
+			/* Supplies VCC-IO, so needs to be always on. */
+			reg_dldo1: dldo1 {
+				regulator-always-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc3v3";
+			};
+
+			reg_dcdc1: dcdc1 {
+				regulator-always-on;
+				regulator-min-microvolt = <810000>;
+				regulator-max-microvolt = <990000>;
+				regulator-name = "vdd-gpu-sys";
+			};
+
+			reg_dcdc2: dcdc2 {
+				regulator-always-on;
+				regulator-min-microvolt = <810000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-name = "vdd-cpu";
+			};
+
+			reg_dcdc3: dcdc3 {
+				regulator-always-on;
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+				regulator-name = "vdd-dram";
+			};
+		};
+	};
+};
+
+&pio {
+	vcc-pc-supply = <&reg_dldo1>;
+	vcc-pf-supply = <&reg_dldo1>;
+	vcc-pg-supply = <&reg_aldo1>;
+	vcc-ph-supply = <&reg_dldo1>;
+	vcc-pi-supply = <&reg_dldo1>;
+};
diff --git a/include/dt-bindings/clock/sun50i-h6-ccu.h b/include/dt-bindings/clock/sun50i-h6-ccu.h
index a1545cd60e7..ef9123d8193 100644
--- a/include/dt-bindings/clock/sun50i-h6-ccu.h
+++ b/include/dt-bindings/clock/sun50i-h6-ccu.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
 /*
  * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
  */
diff --git a/include/dt-bindings/clock/sun50i-h616-ccu.h b/include/dt-bindings/clock/sun50i-h616-ccu.h
index 1191aca53ac..6f8f01e6762 100644
--- a/include/dt-bindings/clock/sun50i-h616-ccu.h
+++ b/include/dt-bindings/clock/sun50i-h616-ccu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
 /*
  * Copyright (C) 2020 Arm Ltd.
  */
diff --git a/include/dt-bindings/clock/sun6i-rtc.h b/include/dt-bindings/clock/sun6i-rtc.h
index c845493e4d3..3bd3aa3d57c 100644
--- a/include/dt-bindings/clock/sun6i-rtc.h
+++ b/include/dt-bindings/clock/sun6i-rtc.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
 
 #ifndef _DT_BINDINGS_CLK_SUN6I_RTC_H_
 #define _DT_BINDINGS_CLK_SUN6I_RTC_H_
diff --git a/include/dt-bindings/reset/sun50i-h6-ccu.h b/include/dt-bindings/reset/sun50i-h6-ccu.h
index 81106f45509..d038ddfa481 100644
--- a/include/dt-bindings/reset/sun50i-h6-ccu.h
+++ b/include/dt-bindings/reset/sun50i-h6-ccu.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
 /*
  * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
  */
diff --git a/include/dt-bindings/reset/sun50i-h6-r-ccu.h b/include/dt-bindings/reset/sun50i-h6-r-ccu.h
index 7950e799c76..d541ade884f 100644
--- a/include/dt-bindings/reset/sun50i-h6-r-ccu.h
+++ b/include/dt-bindings/reset/sun50i-h6-r-ccu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
 /*
  * Copyright (C) 2016 Icenowy Zheng <icenowy@aosc.xyz>
  */
diff --git a/include/dt-bindings/reset/sun50i-h616-ccu.h b/include/dt-bindings/reset/sun50i-h616-ccu.h
index cb6285a8d12..1bd8bb0a11b 100644
--- a/include/dt-bindings/reset/sun50i-h616-ccu.h
+++ b/include/dt-bindings/reset/sun50i-h616-ccu.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */
+/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
 /*
  * Copyright (C) 2020 Arm Ltd.
  */
