[PATCH 2/3] arm64: dts: allwinner: add Radxa Cubie A7Z board

From: Vinicius Pedrosa

Date: Wed Nov 11 2026 - 08:55:24 EST

Add the device tree for the Radxa Cubie A7Z. Describe UART0, the AXP318W
PMIC over R-I2C0, MMC0, RTC and the bank supplies. It is based on the
Cubie A7S DT.

Unlike the A7S, this board uses BLDO5 for PG and a SY8089 regulator for
the PMIC's BLDO and CLDO inputs, and the microSD card-detect line has an
external pull-up, so no internal pull-down is used. ELDO1 only supplies
VDD2L for LPDDR5 and this board uses LPDDR4, so it is not described.
SWOUT1 only feeds ports D and J on the 40-pin header, so it is not kept
always-on.

Signed-off-by: Vinicius Pedrosa <vinicius.eduardo.pedrosa@xxxxxxxxx>
---
arch/arm64/boot/dts/allwinner/Makefile | 1 +
.../dts/allwinner/sun60i-a733-cubie-a7z.dts | 286 ++++++++++++++++++
2 files changed, 287 insertions(+)
create mode 100644 arch/arm64/boot/dts/allwinner/sun60i-a733-cubie-a7z.dts

diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index 792152525b43..2eee91dcbd77 100644
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -69,3 +69,4 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun55i-h728-x96qpro+.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun55i-t527-avaota-a1.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun55i-t527-orangepi-4a.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun60i-a733-cubie-a7s.dtb
+dtb-$(CONFIG_ARCH_SUNXI) += sun60i-a733-cubie-a7z.dtb
diff --git a/arch/arm64/boot/dts/allwinner/sun60i-a733-cubie-a7z.dts b/arch/arm64/boot/dts/allwinner/sun60i-a733-cubie-a7z.dts
new file mode 100644
index 000000000000..ab3d3d70f9ff
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun60i-a733-cubie-a7z.dts
@@ -0,0 +1,286 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+/dts-v1/;
+
+#include "sun60i-a733.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ model = "Radxa Cubie A7Z";
+ compatible = "radxa,cubie-a7z", "allwinner,sun60i-a733";
+
+ aliases {
+ mmc0 = &mmc0;
+ serial0 = &uart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ reg_ps: regulator-system-power {
+ compatible = "regulator-fixed";
+ regulator-name = "ps";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ };
+
+ reg_ldo_input: regulator-ldo-input {
+ compatible = "regulator-fixed";
+ regulator-name = "ldo2v5-input";
+ /* SY8089: 0.6 V * (1 + RP11 / RP6), 30k / 10k. */
+ regulator-min-microvolt = <2400000>;
+ regulator-max-microvolt = <2400000>;
+ regulator-always-on;
+ vin-supply = <&reg_ps>;
+ };
+
+ osc32k: osc32k-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ };
+};
+
+&cpu0 {
+ cpu-supply = <&reg_dcdc5>;
+};
+
+&cpu1 {
+ cpu-supply = <&reg_dcdc5>;
+};
+
+&cpu2 {
+ cpu-supply = <&reg_dcdc5>;
+};
+
+&cpu3 {
+ cpu-supply = <&reg_dcdc5>;
+};
+
+&cpu4 {
+ cpu-supply = <&reg_dcdc5>;
+};
+
+&cpu5 {
+ cpu-supply = <&reg_dcdc5>;
+};
+
+&cpu6 {
+ cpu-supply = <&reg_dcdc3>;
+};
+
+&cpu7 {
+ cpu-supply = <&reg_dcdc3>;
+};
+
+&mmc0 {
+ bus-width = <4>;
+ cap-sd-highspeed;
+ /* PF6 has an external 10k pull-up and reads high with a card. */
+ cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
+ disable-wp;
+ max-frequency = <50000000>;
+ no-1-8-v;
+ vmmc-supply = <&reg_swout2>;
+ /* The 3.3 V path uses VCC-IO; no Port F voltage switching yet. */
+ vqmmc-supply = <&reg_swout2>;
+ status = "okay";
+};
+
+&osc {
+ clock-frequency = <26000000>;
+};
+
+&pio {
+ vcc-pb-supply = <&reg_swout2>;
+ vcc-pc-supply = <&reg_cldo5>;
+ vcc-pd-supply = <&reg_swout1>;
+ vcc-pe-supply = <&reg_bldo1>;
+ /* CLDO5 feeds VCC18-PF; the 3.3 V path uses VCC-IO. */
+ vcc-pf-supply = <&reg_cldo5>;
+ vcc-pg-supply = <&reg_bldo5>;
+ vcc-ph-supply = <&reg_swout2>;
+ vcc-pj-supply = <&reg_swout1>;
+ vcc-pk-supply = <&reg_bldo1>;
+};
+
+&r_i2c0 {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&r_i2c0_pl_pins>;
+
+ axp318w: pmic@36 {
+ compatible = "x-powers,axp318w";
+ reg = <0x36>;
+ interrupt-parent = <&nmi_intc>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ aldo156in-supply = <&reg_ps>;
+ aldo234in-supply = <&reg_aldo1>;
+ bldoin-supply = <&reg_ldo_input>;
+ cldoin-supply = <&reg_ldo_input>;
+ dldoin-supply = <&reg_ps>;
+ eldoin-supply = <&reg_dcdc9>;
+ ips-supply = <&reg_ps>;
+ vin19-supply = <&reg_ps>;
+ vin23-supply = <&reg_ps>;
+ vin45-supply = <&reg_ps>;
+ vin678-supply = <&reg_ps>;
+
+ regulators {
+ reg_dcdc1: dcdc1 {
+ regulator-name = "vcc-3v3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ reg_dcdc2: dcdc2 {
+ regulator-name = "vdd-sys";
+ regulator-always-on;
+ };
+
+ reg_dcdc3: dcdc3 {
+ regulator-name = "vdd-cpub";
+ regulator-always-on;
+ };
+
+ reg_dcdc4: dcdc4 {
+ regulator-name = "vdd-gpu";
+ regulator-always-on;
+ };
+
+ reg_dcdc5: dcdc5 {
+ regulator-name = "vdd-cpul";
+ regulator-always-on;
+ };
+
+ reg_dcdc6: dcdc6 {
+ regulator-name = "vcc-draml";
+ regulator-always-on;
+ };
+
+ reg_dcdc7: dcdc7 {
+ regulator-name = "vcc-dram";
+ regulator-always-on;
+ };
+
+ reg_dcdc8: dcdc8 {
+ regulator-name = "vcc-ufs-io";
+ regulator-always-on;
+ };
+
+ reg_dcdc9: dcdc9 {
+ regulator-name = "eldo-input";
+ regulator-always-on;
+ };
+
+ reg_swout1: swout1 {
+ regulator-name = "vcc33-lcd";
+ };
+
+ reg_swout2: swout2 {
+ regulator-name = "vcc-io-card";
+ regulator-always-on;
+ };
+
+ reg_aldo1: aldo1 {
+ regulator-name = "vcc-pl";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
+
+ reg_bldo1: bldo1 {
+ regulator-name = "vcc-pe-pk-mcsi";
+ };
+
+ reg_bldo2: bldo2 {
+ regulator-name = "vcc-lvds0";
+ regulator-always-on;
+ };
+
+ reg_bldo4: bldo4 {
+ regulator-name = "vcc18-codec";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_bldo5: bldo5 {
+ regulator-name = "vcc-pg";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_cldo1: cldo1 {
+ regulator-name = "vcc33-18-usb";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ reg_cldo2: cldo2 {
+ regulator-name = "vcc18-hdmi";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ reg_cldo3: cldo3 {
+ regulator-name = "vcc-pll-dram";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ reg_cldo5: cldo5 {
+ regulator-name = "vcc18-pf-pc";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
+ reg_dldo1: dldo1 {
+ regulator-name = "vcc-efuse";
+ regulator-always-on;
+ };
+
+ reg_dldo6: dldo6 {
+ regulator-name = "vcc-ufs";
+ regulator-always-on;
+ };
+
+ reg_eldo6: eldo6 {
+ regulator-name = "vdd-cpus";
+ regulator-always-on;
+ };
+
+ reg_rtc_ldo: rtc-ldo {
+ regulator-name = "vcc-rtc";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+ };
+ };
+};
+
+&r_pio {
+ /* PL powers the PMIC bus itself; firmware must keep ALDO1 enabled. */
+ vcc-pm-supply = <&reg_aldo1>;
+};
+
+&rtc {
+ clocks = <&r_ccu CLK_BUS_R_RTC>, <&osc>, <&r_ccu CLK_R_AHB>,
+ <&osc32k>;
+ clock-names = "bus", "hosc", "ahb", "ext-osc32k";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pb_pins>;
+ status = "okay";
+};
--
2.43.0