arm64: dts: allwinner: t527: Add OrangePi 4A board

The OrangePi 4A is a typical Raspberry Pi model B sized development
board from Xunlong designed around an Allwinner T527 SoC.

The board has the following features:
- Allwinner T527 SoC
- AXP717B + AXP323 PMICs
- Up to 4GB LPDDR4 DRAM
- micro SD slot
- optional eMMC module
- M.2 slot for PCIe 2.0 x1
- 16 MB SPI-NOR flash
- 4x USB 2.0 type-A ports (one can be used in gadget mode)
- 1x Gigabit ethernet w/ Motorcomm PHY (through yet to be supported GMAC200)
- 3.5mm audio jack via internal audio codec
- HDMI 2.0 output
- eDP, MIPI CSI (2-lane and 4-lane) and MIPI DSI (4-lane) connectors
- USB type-C port purely for power
- AP6256 (Broadcom BCM4345) WiFi 5.0 + BT 5.0
- unsoldered headers for ADC and an additional USB 2.0 host port
- 40-pin GPIO header

Add a device tree for it, enabling all peripherals currently supported.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://patch.msgid.link/20250628161608.3072968-6-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index 773cc02a13d043e9e9cf33bb0bf4b2c8fcc9b650..780aeba0f3a4e14d69c9602e37b8d299165507b9 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -57,3 +57,4 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h700-anbernic-rg35xx-sp.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun55i-a527-cubie-a5e.dtb
 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

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
new file mode 100644 (file)
index 0000000..5f97505
--- /dev/null
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-orangepi-4a.dts
@@ -0,0 +1,385 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR MIT)
+/*
+ * Copyright (C) 2025 Chen-Yu Tsai <wens@csie.org>
+ */
+
+/dts-v1/;
+
+#include "sun55i-a523.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+       model = "OrangePi 4A";
+       compatible = "xunlong,orangepi-4a", "allwinner,sun55i-t527";
+
+       aliases {
+               serial0 = &uart0;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       ext_osc32k: ext-osc32k-clk {
+               #clock-cells = <0>;
+               compatible = "fixed-clock";
+               clock-frequency = <32768>;
+               clock-output-names = "ext_osc32k";
+       };
+
+       leds {
+               compatible = "gpio-leds";
+
+               /* PWM capable pin, but PWM isn't supported yet. */
+               led {
+                       function = LED_FUNCTION_STATUS;
+                       color = <LED_COLOR_ID_GREEN>;
+                       gpios = <&pio 3 20 GPIO_ACTIVE_HIGH>; /* PD20 */
+               };
+       };
+
+       wifi_pwrseq: pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               reset-gpios = <&r_pio 1 1 GPIO_ACTIVE_LOW>; /* PM1 */
+               clocks = <&rtc CLK_OSC32K_FANOUT>;
+               clock-names = "ext_clock";
+       };
+
+       reg_otg_vbus: regulator-otg-vbus {
+               compatible = "regulator-fixed";
+               regulator-name = "otg-vbus";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               vin-supply = <&reg_vcc5v>;
+               gpio = <&r_pio 0 4 GPIO_ACTIVE_HIGH>;   /* PL4 */
+               enable-active-high;
+       };
+
+       reg_pcie_vcc3v3: regulator-pcie-vcc3v3 {
+               compatible = "regulator-fixed";
+               regulator-name = "vcc-pcie-3v3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               vin-supply = <&reg_vcc5v>;
+               gpio = <&r_pio 0 8 GPIO_ACTIVE_HIGH>;   /* PL8 */
+               enable-active-high;
+       };
+
+       reg_usb_vbus: regulator-usb-vbus {
+               compatible = "regulator-fixed";
+               regulator-name = "usb-vbus";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               vin-supply = <&reg_vcc5v>;
+               gpio = <&r_pio 0 12 GPIO_ACTIVE_HIGH>;  /* PL12 */
+               enable-active-high;
+       };
+
+       reg_vcc5v: regulator-vcc5v {
+               /* board wide 5V supply from USB type-C port */
+               compatible = "regulator-fixed";
+               regulator-name = "vcc-5v";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               regulator-always-on;
+       };
+};
+
+&ehci0 {
+       status = "okay";
+};
+
+&ehci1 {
+       status = "okay";
+};
+
+&mmc0 {
+       vmmc-supply = <&reg_cldo3>;
+       cd-gpios = <&pio 5 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; /* PF6 */
+       bus-width = <4>;
+       status = "okay";
+};
+
+&mmc1 {
+       bus-width = <4>;
+       mmc-pwrseq = <&wifi_pwrseq>;
+       non-removable;
+       vmmc-supply = <&reg_dldo1_323>;
+       vqmmc-supply = <&reg_bldo1>;
+       status = "okay";
+
+       brcmf: wifi@1 {
+               compatible = "brcm,bcm4329-fmac";
+               reg = <1>;
+               interrupt-parent = <&r_pio>;
+               interrupts = <1 0 IRQ_TYPE_LEVEL_LOW>; /* PM0 */
+               interrupt-names = "host-wake";
+       };
+};
+
+&mmc2 {
+       bus-width = <8>;
+       cap-mmc-hw-reset;
+       mmc-ddr-1_8v;
+       mmc-hs200-1_8v;
+       non-removable;
+       vmmc-supply = <&reg_cldo3>;
+       vqmmc-supply = <&reg_cldo1>;
+       status = "okay";
+};
+
+&ohci0 {
+       status = "okay";
+};
+
+&ohci1 {
+       status = "okay";
+};
+
+&pio {
+       vcc-pb-supply = <&reg_cldo3>;   /* via VCC-IO */
+       vcc-pc-supply = <&reg_cldo1>;
+       vcc-pd-supply = <&reg_cldo3>;
+       vcc-pe-supply = <&reg_aldo2>;
+       vcc-pf-supply = <&reg_cldo3>;   /* VCC-IO for 3.3v; VCC-MCSI for 1.8v */
+       vcc-pg-supply = <&reg_bldo1>;
+       vcc-ph-supply = <&reg_cldo3>;   /* via VCC-IO */
+       vcc-pi-supply = <&reg_cldo3>;
+       vcc-pj-supply = <&reg_cldo1>;
+       vcc-pk-supply = <&reg_cldo1>;
+};
+
+&r_i2c0 {
+       status = "okay";
+
+       axp717: pmic@35 {
+               compatible = "x-powers,axp717";
+               reg = <0x35>;
+               interrupt-controller;
+               #interrupt-cells = <1>;
+               interrupts-extended = <&nmi_intc 0 IRQ_TYPE_LEVEL_LOW>;
+
+               vin1-supply = <&reg_vcc5v>;
+               vin2-supply = <&reg_vcc5v>;
+               vin3-supply = <&reg_vcc5v>;
+               vin4-supply = <&reg_vcc5v>;
+               aldoin-supply = <&reg_vcc5v>;
+               bldoin-supply = <&reg_vcc5v>;
+               cldoin-supply = <&reg_vcc5v>;
+
+               regulators {
+                       /* Supplies the "little" cluster (1.4 GHz cores) */
+                       reg_dcdc1: dcdc1 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <900000>;
+                               regulator-max-microvolt = <1160000>;
+                               regulator-name = "vdd-cpul";
+                       };
+
+                       reg_dcdc2: dcdc2 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <920000>;
+                               regulator-max-microvolt = <920000>;
+                               regulator-name = "vdd-gpu-sys";
+                       };
+
+                       reg_dcdc3: dcdc3 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <1160000>;
+                               regulator-max-microvolt = <1160000>;
+                               regulator-name = "vcc-dram";
+                       };
+
+                       reg_dcdc4: dcdc4 {
+                               /* feeds 3.3V pin on GPIO header */
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vdd-io";
+                       };
+
+                       aldo1 {
+                               /* not actually connected */
+                               regulator-name = "avdd-csi";
+                       };
+
+                       reg_aldo2: aldo2 {
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-name = "vcc-pe";
+                       };
+
+                       reg_aldo3: aldo3 {
+                               /* supplies the I2C pins for this PMIC */
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcc-pl-usb";
+                       };
+
+                       reg_aldo4: aldo4 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-name = "vcc-pll-dxco-avcc";
+                       };
+
+                       reg_bldo1: bldo1 {
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-name = "vcc-pg-wifi";
+                       };
+
+                       reg_bldo2: bldo2 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-name = "vcc-pm-lpddr";
+                       };
+
+                       bldo3 {
+                               /* not actually connected */
+                               regulator-name = "afvcc-csi";
+                       };
+
+                       bldo4 {
+                               /* not actually connected */
+                               regulator-name = "dvdd-csi";
+                       };
+
+                       reg_cldo1: cldo1 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <1800000>;
+                               regulator-max-microvolt = <1800000>;
+                               regulator-name = "vcc-cvp-pc-lvds-mcsi-pk-efuse-pcie-edp-1v8";
+                       };
+
+                       reg_cldo2: cldo2 {
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcc3v3-csi";
+                       };
+
+                       reg_cldo3: cldo3 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcc-io-mmc-nand-pd-pi-usb";
+                       };
+
+                       reg_cldo4: cldo4 {
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcc-3v3-phy1-lcd";
+                       };
+
+                       reg_cpusldo: cpusldo {
+                               /* supplies the management core */
+                               regulator-always-on;
+                               regulator-min-microvolt = <900000>;
+                               regulator-max-microvolt = <900000>;
+                               regulator-name = "vdd-cpus-usb-0v9";
+                       };
+               };
+       };
+
+       axp323: pmic@36 {
+               compatible = "x-powers,axp323";
+               reg = <0x36>;
+               #interrupt-cells = <1>;
+               interrupt-controller;
+               status = "okay";
+
+               vin1-supply = <&reg_vcc5v>;
+               vin2-supply = <&reg_vcc5v>;
+               vin3-supply = <&reg_vcc5v>;
+
+               regulators {
+                       reg_aldo1_323: aldo1 {
+                               /* less capable and shares load with dldo1 */
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcc-wifi";
+                       };
+
+                       reg_dldo1_323: dldo1 {
+                               /* more capable and shares load with aldo1 */
+                               regulator-min-microvolt = <3300000>;
+                               regulator-max-microvolt = <3300000>;
+                               regulator-name = "vcc-wifi2";
+                       };
+
+                       /* Supplies the "big" cluster (1.8 GHz cores) */
+                       reg_dcdc1_323: dcdc1 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <900000>;
+                               regulator-max-microvolt = <1150000>;
+                               regulator-name = "vdd-cpub";
+                       };
+
+                       /* DCDC2 is polyphased with DCDC1 */
+
+                       /* Some RISC-V management core related voltage */
+                       reg_dcdc3_323: dcdc3 {
+                               regulator-always-on;
+                               regulator-min-microvolt = <900000>;
+                               regulator-max-microvolt = <900000>;
+                               regulator-name = "vdd-dnr";
+                       };
+               };
+       };
+};
+
+&r_pio {
+/*
+ * Specifying the supply would create a circular dependency.
+ *
+ *     vcc-pl-supply = <&reg_aldo3>;
+ */
+       vcc-pm-supply = <&reg_bldo2>;
+};
+
+&uart0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart0_pb_pins>;
+       status = "okay";
+};
+
+&uart1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
+       uart-has-rtscts;
+       status = "okay";
+
+       bluetooth {
+               compatible = "brcm,bcm4345c5";
+               clocks = <&rtc CLK_OSC32K_FANOUT>;
+               clock-names = "lpo";
+               vbat-supply = <&reg_aldo1_323>;
+               vddio-supply = <&reg_bldo1>;
+               device-wakeup-gpios = <&r_pio 1 3 GPIO_ACTIVE_HIGH>; /* PM3 */
+               host-wakeup-gpios = <&r_pio 1 4 GPIO_ACTIVE_HIGH>; /* PM4 */
+               shutdown-gpios = <&r_pio 1 2 GPIO_ACTIVE_HIGH>; /* PM2 */
+       };
+};
+
+&usb_otg {
+       /*
+        * The OTG controller is connected to one of the type-A ports.
+        * There is a regulator, controlled by a GPIO, to provide VBUS power
+        * to the port, and a VBUSDET GPIO, to detect externally provided
+        * power. But without ID or CC pins there is no real way to do a
+        * runtime role detection.
+        */
+       dr_mode = "host";
+       status = "okay";
+};
+
+&usbphy {
+       usb0_vbus-supply = <&reg_otg_vbus>;
+       usb0_vbus_det-gpios = <&r_pio 0 7 GPIO_ACTIVE_HIGH>; /* PL7 */
+       usb1_vbus-supply = <&reg_usb_vbus>;
+       status = "okay";
+};