Re: [PATCH 2/2] arm64: dts: allwinner: h616: add Orange Pi Zero 2W support

["Jernej Škrabec" <jernej.skrabec@gmail.com>]

On Friday, October 20, 2023 4:57:06 PM CEST Andre Przywara wrote:
> The Orange Pi Zero 2W is a board based on the Allwinner H618 SoC.
> It uses the RaspberryPi Zero form factor, with an optional expansion
> board, connected via an FPC connector, to provide more connectors.
> 
> The base board features:
> 	- Allwinner H618 SoC (quad Cortex-A53 cores, with 1MB L2 cache)
> 	- 1, 2 or 4GB of LPDDR4 DRAM
> 	- SD card socket
> 	- two USB-C sockets, one UFP, one DFP
> 	- HDMI connector
> 	- (yet unsupported) WiFi module
> 	- 16 MiB SPI flash
> 	- power supply via the UFP USB-C port
> 
> The FPC connector provides access to two more USB host ports, Fast
> Ethernet, some GPIOs, Audio Line out and the IR receiver pin.
> 
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>

I compared it to the schematic and all values looks good. Sadly, it missed 
merge window.

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej

> ---
>  .../allwinner/sun50i-h618-orangepi-zero2w.dts | 176 ++++++++++++++++++
>  1 file changed, 176 insertions(+)
>  create mode 100644
> arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts
> b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts new file
> mode 100644
> index 0000000000000..21ca1977055d9
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts
> @@ -0,0 +1,176 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (C) 2023 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>
> +
> +/ {
> +	model = "OrangePi Zero 2W";
> +	compatible = "xunlong,orangepi-zero2w", "allwinner,sun50i-h618";
> +
> +	aliases {
> +		serial0 = &uart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		led-0 {
> +			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_vcc3v3: vcc3v3 {
> +		/* SY8089 DC/DC converter */
> +		compatible = "regulator-fixed";
> +		regulator-name = "vcc-3v3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +		vin-supply = <&reg_vcc5v>;
> +		regulator-always-on;
> +	};
> +};
> +
> +&ehci1 {
> +	status = "okay";
> +};
> +
> +/* USB 2 & 3 are on the FPC connector (or the exansion board) */
> +
> +&mmc0 {
> +	cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>;	/* PF6 */
> +	bus-width = <4>;
> +	vmmc-supply = <&reg_vcc3v3>;
> +	status = "okay";
> +};
> +
> +&ohci1 {
> +	status = "okay";
> +};
> +
> +&pio {
> +	vcc-pc-supply = <&reg_dldo1>;
> +	vcc-pf-supply = <&reg_dldo1>;	/* internally via VCC-IO */
> +	vcc-pg-supply = <&reg_aldo1>;
> +	vcc-ph-supply = <&reg_dldo1>;	/* internally via VCC-IO */
> +	vcc-pi-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 and DRAM */
> +			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";
> +			};
> +		};
> +	};
> +};
> +
> +&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_vcc5v>;
> +	status = "okay";
> +};