[PATCH v2 2/2] arm64: dts: allwinner: h6: Add Orange Pi 3 LTS

From: Cristian Filipescu via B4 Relay

Date: Thu Oct 22 2026 - 02:01:48 EST

From: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>

Add a device tree for the Orange Pi 3 LTS, an Allwinner H6 board with
2 GiB LPDDR3, 8 GiB eMMC, a Motorcomm YT8531C Gigabit Ethernet PHY,
AW859A wireless module, USB 2.0/3.0 host ports and HDMI.

Describe the board-specific Ethernet power and reset wiring, wireless
supplies, storage and regulators. Include the review corrections from
the original submission: oscillator naming, symbolic RTC clock ID,
regulator supply chaining, BLDO3 always-on and DCDCA/DCDCB polyphase
annotation. Describe the PM bank supply and use the green PL7 LED as
the power indicator.

Configure the RGMII delays in the PHY with zero MAC delays, as proposed
during the Ethernet review. This setup was exercised in U-Boot on the
board; Linux runtime testing remains to be performed.

Link: https://lore.kernel.org/linux-sunxi/20250413134318.66681-3-jernej.skrabec@xxxxxxxxx/
Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
Signed-off-by: Cristian Filipescu <filipescu.cristian@xxxxxxxxx>
---
arch/arm64/boot/dts/allwinner/Makefile | 1 +
.../dts/allwinner/sun50i-h6-orangepi-3-lts.dts | 362 +++++++++++++++++++++
2 files changed, 363 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index aa21f58a4..7ea136380 100644
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -41,6 +41,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-orangepi-zero-plus.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h5-orangepi-zero-plus2.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-beelink-gs1.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-orangepi-3.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-orangepi-3-lts.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-orangepi-lite2.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-orangepi-one-plus.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h6-pine-h64.dtb
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3-lts.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3-lts.dts
new file mode 100644
index 000000000..e6aa0b2e1
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3-lts.dts
@@ -0,0 +1,362 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (C) 2025 Jernej Skrabec <jernej.skrabec@xxxxxxxxx>
+// Based on sun50i-h6-orangepi-3.dts, which is:
+// Copyright (C) 2019 Ondřej Jirman <megous@xxxxxxxxxx>
+
+/dts-v1/;
+
+#include "sun50i-h6.dtsi"
+#include "sun50i-h6-cpu-opp.dtsi"
+#include "sun50i-h6-gpu-opp.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+ model = "OrangePi 3 LTS";
+ compatible = "xunlong,orangepi-3-lts", "allwinner,sun50i-h6";
+
+ aliases {
+ ethernet0 = &emac;
+ ethernet1 = &aw859a;
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ connector {
+ compatible = "hdmi-connector";
+ ddc-en-gpios = <&pio 7 2 GPIO_ACTIVE_HIGH>; /* PH2 */
+ type = "a";
+
+ port {
+ hdmi_con_in: endpoint {
+ remote-endpoint = <&hdmi_out_con>;
+ };
+ };
+ };
+
+ ext_osc32k: ext-osc32k-clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <32768>;
+ clock-output-names = "ext-osc32k";
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ led-0 {
+ function = LED_FUNCTION_STATUS;
+ color = <LED_COLOR_ID_RED>;
+ gpios = <&r_pio 0 4 GPIO_ACTIVE_HIGH>; /* PL4 */
+ default-state = "on";
+ };
+
+ led-1 {
+ function = LED_FUNCTION_POWER;
+ color = <LED_COLOR_ID_GREEN>;
+ gpios = <&r_pio 0 7 GPIO_ACTIVE_HIGH>; /* PL7 */
+ default-state = "off";
+ };
+ };
+
+ reg_gmac_3v3: gmac-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "gmac-3v3";
+ vin-supply = <&reg_vcc5v>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ startup-delay-us = <150000>;
+ enable-active-high;
+ gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
+ };
+
+ reg_vcc5v: vcc5v {
+ /* board wide 5V supply directly from the DC jack */
+ compatible = "regulator-fixed";
+ regulator-name = "vcc-5v";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ };
+
+ reg_wifi_3v3: wifi-3v3 {
+ /* 3.3V regulator for WiFi and BT */
+ compatible = "regulator-fixed";
+ regulator-name = "wifi-3v3";
+ vin-supply = <&reg_vcc5v>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-active-high;
+ gpio = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
+ };
+
+ wifi_pwrseq: wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&rtc CLK_OSC32K_FANOUT>;
+ clock-names = "ext_clock";
+ reset-gpios = <&r_pio 1 3 GPIO_ACTIVE_LOW>; /* PM3 */
+ post-power-on-delay-ms = <200>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&reg_dcdca>;
+};
+
+&de {
+ status = "okay";
+};
+
+&dwc3 {
+ status = "okay";
+};
+
+&ehci0 {
+ status = "okay";
+};
+
+&ehci3 {
+ status = "okay";
+};
+
+&emac {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ext_rgmii_pins>;
+ phy-mode = "rgmii-id";
+ phy-handle = <&ext_rgmii_phy>;
+ phy-supply = <&reg_gmac_3v3>;
+ allwinner,rx-delay-ps = <0>;
+ allwinner,tx-delay-ps = <0>;
+ status = "okay";
+};
+
+&gpu {
+ mali-supply = <&reg_dcdcc>;
+ status = "okay";
+};
+
+&hdmi {
+ hvcc-supply = <&reg_bldo2>;
+ status = "okay";
+};
+
+&hdmi_out {
+ hdmi_out_con: endpoint {
+ remote-endpoint = <&hdmi_con_in>;
+ };
+};
+
+&mdio {
+ ext_rgmii_phy: ethernet-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <1>;
+
+ motorcomm,clk-out-frequency-hz = <125000000>;
+ rx-internal-delay-ps = <1950>;
+ tx-internal-delay-ps = <1950>;
+
+ reset-gpios = <&pio 3 14 GPIO_ACTIVE_LOW>; /* PD14 */
+ reset-assert-us = <15000>;
+ reset-deassert-us = <100000>;
+ };
+};
+
+&mmc0 {
+ vmmc-supply = <&reg_cldo1>;
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */
+ disable-wp;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&mmc1 {
+ vmmc-supply = <&reg_wifi_3v3>;
+ vqmmc-supply = <&reg_bldo3>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+
+ aw859a: wifi@1 {
+ reg = <1>;
+ };
+};
+
+&mmc2 {
+ vmmc-supply = <&reg_cldo1>;
+ vqmmc-supply = <&reg_bldo2>;
+ cap-mmc-hw-reset;
+ non-removable;
+ bus-width = <8>;
+ status = "okay";
+};
+
+&ohci0 {
+ status = "okay";
+};
+
+&ohci3 {
+ status = "okay";
+};
+
+&pio {
+ vcc-pc-supply = <&reg_bldo2>;
+ vcc-pd-supply = <&reg_cldo1>;
+ vcc-pg-supply = <&reg_bldo3>;
+};
+
+&r_ir {
+ status = "okay";
+};
+
+&r_pio {
+ vcc-pm-supply = <&reg_bldo3>;
+};
+
+&r_i2c {
+ status = "okay";
+
+ axp805: pmic@36 {
+ compatible = "x-powers,axp805", "x-powers,axp806";
+ reg = <0x36>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ x-powers,self-working-mode;
+ vina-supply = <&reg_vcc5v>;
+ vinb-supply = <&reg_vcc5v>;
+ vinc-supply = <&reg_vcc5v>;
+ vind-supply = <&reg_vcc5v>;
+ vine-supply = <&reg_vcc5v>;
+ aldoin-supply = <&reg_vcc5v>;
+ bldoin-supply = <&reg_vcc5v>;
+ cldoin-supply = <&reg_vcc5v>;
+
+ regulators {
+ reg_aldo1: aldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-pl-led-ir";
+ };
+
+ reg_aldo2: aldo2 {
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc33-audio-tv-ephy-mac";
+ };
+
+ /* ALDO3 is shorted to CLDO1 */
+ reg_aldo3: aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc33-io-pd-emmc-sd-usb-uart-1";
+ };
+
+ reg_bldo1: bldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vcc18-dram-bias-pll";
+ };
+
+ reg_bldo2: bldo2 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vcc-efuse-pcie-hdmi-pc";
+ };
+
+ reg_bldo3: bldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-name = "vcc-pm-pg-dcxoio-wifi";
+ };
+
+ bldo4 {
+ /* unused */
+ };
+
+ reg_cldo1: cldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc33-io-pd-emmc-sd-usb-uart-2";
+ };
+
+ cldo2 {
+ /* unused */
+ };
+
+ cldo3 {
+ /* unused */
+ };
+
+ /* DCDCB is polyphased with DCDCA. */
+ reg_dcdca: dcdca {
+ regulator-always-on;
+ regulator-min-microvolt = <800000>;
+ regulator-max-microvolt = <1160000>;
+ regulator-ramp-delay = <2500>;
+ regulator-name = "vdd-cpu";
+ };
+
+ reg_dcdcc: dcdcc {
+ regulator-enable-ramp-delay = <32000>;
+ regulator-min-microvolt = <810000>;
+ regulator-max-microvolt = <1080000>;
+ regulator-ramp-delay = <2500>;
+ regulator-name = "vdd-gpu";
+ };
+
+ reg_dcdcd: dcdcd {
+ regulator-always-on;
+ regulator-min-microvolt = <960000>;
+ regulator-max-microvolt = <960000>;
+ regulator-name = "vdd-sys";
+ };
+
+ reg_dcdce: dcdce {
+ regulator-always-on;
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-name = "vcc-dram";
+ };
+
+ sw {
+ /* unused */
+ };
+ };
+ };
+};
+
+&rtc {
+ clocks = <&ext_osc32k>;
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_ph_pins>;
+ status = "okay";
+};
+
+&usb2otg {
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usb2phy {
+ usb0_id_det-gpios = <&pio 2 15 GPIO_ACTIVE_HIGH>; /* PC15 */
+ usb0_vbus-supply = <&reg_vcc5v>;
+ usb3_vbus-supply = <&reg_vcc5v>;
+ status = "okay";
+};
+
+&usb3phy {
+ status = "okay";
+};

--
2.47.3