[PATCH 2/2] ARM: dts: sunxi: add support for RerVision A33-Vstar board

Icenowy Zheng
2024-09-13T10:51:31Z

RerVision A33-Vstar board is a board based on their A33-Core1 SoM (A33
SoC + 512MiB DRAM + 4GiB eMMC + AXP223 PMIC), with multiple peripherals:

- MicroSD card slot
- 4.0mm/1.7mm DC jack connected to ACIN of AXP223 (and a XH2.54 2-pin
connector for alternative 5V DC IN)
- OTG-capable microUSB port
- Reserved pads for soldering Li-ion battery and/or 3V RTC battery
- 3 LRADC-attached keys and 2 fixed function power/reset keys
- AP6212 Wi-Fi/BT combo module
- On-board GL850G hub attached to the USB host port of A33, and a
RTL8152 USB Ethernet chip at the downstream of the hub
- Onboard microphone (not supported yet) and headphone jack
- 3 UART ports as PH2.0 3-pin connectors (UART2 one is currently used as
debug output and others are ignored yet)

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
---
arch/arm/boot/dts/allwinner/Makefile | 1 +
.../dts/allwinner/sun8i-a33-vstar-core1.dtsi | 96 ++++++++
.../boot/dts/allwinner/sun8i-a33-vstar.dts | 205 ++++++++++++++++++
3 files changed, 302 insertions(+)
create mode 100644 arch/arm/boot/dts/allwinner/sun8i-a33-vstar-core1.dtsi
create mode 100644 arch/arm/boot/dts/allwinner/sun8i-a33-vstar.dts

diff --git a/arch/arm/boot/dts/allwinner/Makefile b/arch/arm/boot/dts/allwinner/Makefile
index cd0d044882cf8..d548f4a2621a1 100644
--- a/arch/arm/boot/dts/allwinner/Makefile
+++ b/arch/arm/boot/dts/allwinner/Makefile
@@ -215,6 +215,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
sun8i-a33-olinuxino.dtb \
sun8i-a33-q8-tablet.dtb \
sun8i-a33-sinlinx-sina33.dtb \
+ sun8i-a33-vstar.dtb \
sun8i-a83t-allwinner-h8homlet-v2.dtb \
sun8i-a83t-bananapi-m3.dtb \
sun8i-a83t-cubietruck-plus.dtb \
diff --git a/arch/arm/boot/dts/allwinner/sun8i-a33-vstar-core1.dtsi b/arch/arm/boot/dts/allwinner/sun8i-a33-vstar-core1.dtsi
new file mode 100644
index 0000000000000..ba794b842ec4e
--- /dev/null
+++ b/arch/arm/boot/dts/allwinner/sun8i-a33-vstar-core1.dtsi
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2024 Icenowy Zheng <uwu@icenowy.me>
+ */
+
+#include "sun8i-a33.dtsi"
+
+&mmc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc2_8bit_pins>;
+ vmmc-supply = <&reg_dcdc1>;
+ bus-width = <8>;
+ non-removable;
+ cap-mmc-hw-reset;
+ status = "okay";
+};
+
+&mmc2_8bit_pins {
+ /* Increase drive strength for DDR modes */
+ drive-strength = <40>;
+};
+
+&r_rsb {
+ status = "okay";
+
+ axp22x: pmic@3a3 {
+ compatible = "x-powers,axp223";
+ reg = <0x3a3>;
+ interrupt-parent = <&r_intc>;
+ interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
+ eldoin-supply = <&reg_dcdc1>;
+ x-powers,drive-vbus-en;
+ };
+};
+
+#include "axp223.dtsi"
+
+&reg_aldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-io";
+};
+
+&reg_aldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <2350000>;
+ regulator-max-microvolt = <2650000>;
+ regulator-name = "vdd-dll";
+};
+
+&reg_aldo3 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-avcc";
+};
+
+&reg_dc5ldo {
+ regulator-always-on;
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-cpus";
+};
+
+&reg_dcdc1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-3v3";
+};
+
+&reg_dcdc2 {
+ regulator-always-on;
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-sys";
+};
+
+&reg_dcdc3 {
+ regulator-always-on;
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1400000>;
+ regulator-name = "vdd-cpu";
+};
+
+&reg_dcdc5 {
+ regulator-always-on;
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-name = "vcc-dram";
+};
+
+&reg_rtc_ldo {
+ regulator-name = "vcc-rtc";
+};
diff --git a/arch/arm/boot/dts/allwinner/sun8i-a33-vstar.dts b/arch/arm/boot/dts/allwinner/sun8i-a33-vstar.dts
new file mode 100644
index 0000000000000..9f5c29b3df46d
--- /dev/null
+++ b/arch/arm/boot/dts/allwinner/sun8i-a33-vstar.dts
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2024 Icenowy Zheng <uwu@icenowy.me>
+ */
+
+/dts-v1/;
+#include "sun8i-a33-vstar-core1.dtsi"
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Rervision A33-Vstar";
+ compatible = "rervision,a33-vstar",
+ "rervision,a33-core1",
+ "allwinner,sun8i-a33";
+
+ aliases {
+ serial0 = &uart0;
+ ethernet0 = &r8152;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ reg_usb1_vbus: regulator-usb1-vbus {
+ compatible = "regulator-fixed";
+ regulator-name = "usb1-vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-boot-on;
+ enable-active-high;
+ gpio = <&pio 1 2 GPIO_ACTIVE_HIGH>; /* PB2 */
+ };
+
+ wifi_pwrseq: pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&r_pio 0 6 GPIO_ACTIVE_LOW>; /* PL6 */
+ clocks = <&rtc CLK_OSC32K_FANOUT>;
+ clock-names = "ext_clock";
+ };
+};
+
+&ac_power_supply {
+ status = "okay";
+};
+
+&codec {
+ status = "okay";
+};
+
+&dai {
+ status = "okay";
+};
+
+&ehci0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ hub@1 {
+ /* Onboard GL850G hub which needs no extra power sequence */
+ compatible = "usb5e3,608";
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ r8152: ethernet@4 {
+ /*
+ * Onboard Realtek RTL8152 USB Ethernet,
+ * with no MAC address programmed
+ */
+ compatible = "usbbda,8152";
+ reg = <4>;
+ };
+ };
+};
+
+&lradc {
+ vref-supply = <&reg_aldo3>;
+ status = "okay";
+
+ button-191 {
+ label = "V+";
+ linux,code = <KEY_VOLUMEUP>;
+ channel = <0>;
+ voltage = <191011>;
+ };
+
+ button-391 {
+ label = "V-";
+ linux,code = <KEY_VOLUMEDOWN>;
+ channel = <0>;
+ voltage = <391304>;
+ };
+
+ button-600 {
+ label = "BACK";
+ linux,code = <KEY_BACK>;
+ channel = <0>;
+ voltage = <600000>;
+ };
+};
+
+&mmc0 {
+ vmmc-supply = <&reg_dcdc1>;
+ bus-width = <4>;
+ cd-gpios = <&pio 1 4 GPIO_ACTIVE_LOW>; /* PB4 */
+ status = "okay";
+};
+
+&mmc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pg_pins>;
+ vmmc-supply = <&reg_dldo1>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+
+ brcmf: wifi@1 {
+ reg = <1>;
+ compatible = "brcm,bcm4329-fmac";
+ interrupt-parent = <&r_pio>;
+ interrupts = <0 7 IRQ_TYPE_LEVEL_LOW>; /* PL7 */
+ interrupt-names = "host-wake";
+ };
+};
+
+/*
+ * Our WiFi chip needs both DLDO1 and DLDO2 to be powered at the same
+ * time, with the two being in sync. Since this is not really
+ * supported right now, just use the two as always on, and we will fix
+ * it later.
+ */
+&reg_dldo1 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi0";
+};
+
+&reg_dldo2 {
+ regulator-always-on;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-name = "vcc-wifi1";
+};
+
+&reg_drivevbus {
+ regulator-name = "usb0-vbus";
+ status = "okay";
+};
+
+&sound {
+ /* TODO: on-board microphone */
+
+ simple-audio-card,widgets = "Headphone", "Headphone Jack";
+ simple-audio-card,routing =
+ "Left DAC", "DACL",
+ "Right DAC", "DACR",
+ "Headphone Jack", "HP";
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_pb_pins>;
+ status = "okay";
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_pg_pins>, <&uart1_cts_rts_pg_pins>;
+ uart-has-rtscts;
+ status = "okay";
+
+ bluetooth {
+ compatible = "brcm,bcm43438-bt";
+ clocks = <&rtc CLK_OSC32K_FANOUT>;
+ clock-names = "lpo";
+ vbat-supply = <&reg_dldo1>;
+ device-wakeup-gpios = <&r_pio 0 10 GPIO_ACTIVE_HIGH>; /* PL10 */
+ host-wakeup-gpios = <&r_pio 0 9 GPIO_ACTIVE_HIGH>; /* PL9 */
+ shutdown-gpios = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
+ };
+};
+
+&usb_otg {
+ dr_mode = "otg";
+ status = "okay";
+};
+
+&usb_power_supply {
+ status = "okay";
+};
+
+&usbphy {
+ usb0_id_det-gpios = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */
+ usb0_vbus_power-supply = <&usb_power_supply>;
+ usb0_vbus-supply = <&reg_drivevbus>;
+ usb1_vbus-supply = <&reg_usb1_vbus>;
+ status = "okay";
+};
--
2.46.0