Re: [PATCH v2 09/12] riscv: dts: allwinner: Add Dongshan Nezha STU devicetree

[Jernej Škrabec]

Hi Samuel,

Dne sobota, 26. november 2022 ob 00:46:53 CET je Samuel Holland napisal(a):
> The 100ask Dongshan Nezha STU is a system-on-module that can be used
> standalone or with a carrier board. The SoM provides gigabit Ethernet,
> HDMI, a USB peripheral port, and WiFi/Bluetooth via an RTL8723DS chip.
> 
> The "DIY" carrier board exposes almost every pin from the D1 SoC to 0.1"
> headers, but contains no digital circuitry, so it does not have its own
> devicetree.
> 
> Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx>
> ---
> 
> (no changes since v1)
> 
>  arch/riscv/boot/dts/allwinner/Makefile        |   1 +
>  .../sun20i-d1-dongshan-nezha-stu.dts          | 118 ++++++++++++++++++
>  2 files changed, 119 insertions(+)
>  create mode 100644
> arch/riscv/boot/dts/allwinner/sun20i-d1-dongshan-nezha-stu.dts
> 
> diff --git a/arch/riscv/boot/dts/allwinner/Makefile
> b/arch/riscv/boot/dts/allwinner/Makefile index 2ed586fafaea..87f70b1af6b4
> 100644
> --- a/arch/riscv/boot/dts/allwinner/Makefile
> +++ b/arch/riscv/boot/dts/allwinner/Makefile
> @@ -1,4 +1,5 @@
>  # SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-dongshan-nezha-stu.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-lichee-rv-86-panel-480p.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-lichee-rv-86-panel-720p.dtb
>  dtb-$(CONFIG_ARCH_SUNXI) += sun20i-d1-lichee-rv-dock.dtb
> diff --git a/arch/riscv/boot/dts/allwinner/sun20i-d1-dongshan-nezha-stu.dts
> b/arch/riscv/boot/dts/allwinner/sun20i-d1-dongshan-nezha-stu.dts new file
> mode 100644
> index 000000000000..c549a1c5fbf0
> --- /dev/null
> +++ b/arch/riscv/boot/dts/allwinner/sun20i-d1-dongshan-nezha-stu.dts
> @@ -0,0 +1,118 @@
> +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> +// Copyright (C) 2022 Samuel Holland <samuel@xxxxxxxxxxxx>
> +
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/leds/common.h>
> +
> +/dts-v1/;
> +
> +#include "sun20i-d1.dtsi"
> +#include "sun20i-common-regulators.dtsi"
> +
> +/ {
> +	model = "Dongshan Nezha STU";
> +	compatible = "100ask,dongshan-nezha-stu", "allwinner,sun20i-d1";
> +
> +	aliases {
> +		ethernet0 = &emac;
> +		mmc0 = &mmc0;

Sorry, I just noticed now, but why is there above alias? It's not sunxi 
practice to add mmc aliases.

Best regards,
Jernej

> +		serial0 = &uart0;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		led-0 {
> +			color = <LED_COLOR_ID_GREEN>;
> +			function = LED_FUNCTION_STATUS;
> +			gpios = <&pio 2 1 GPIO_ACTIVE_HIGH>; /* PC1 
*/
> +		};
> +	};
> +
> +	reg_usbvbus: usbvbus {
> +		compatible = "regulator-fixed";
> +		regulator-name = "usbvbus";
> +		regulator-min-microvolt = <5000000>;
> +		regulator-max-microvolt = <5000000>;
> +		gpio = <&pio 3 19 GPIO_ACTIVE_HIGH>; /* PD19 */
> +		enable-active-high;
> +		vin-supply = <&reg_vcc>;
> +	};
> +
> +	/*
> +	 * This regulator is PWM-controlled, but the PWM controller is not
> +	 * yet supported, so fix the regulator to its default voltage.
> +	 */
> +	reg_vdd_cpu: vdd-cpu {
> +		compatible = "regulator-fixed";
> +		regulator-name = "vdd-cpu";
> +		regulator-min-microvolt = <1100000>;
> +		regulator-max-microvolt = <1100000>;
> +		vin-supply = <&reg_vcc>;
> +	};
> +};
> +
> +&cpu0 {
> +	cpu-supply = <&reg_vdd_cpu>;
> +};
> +
> +&dcxo {
> +	clock-frequency = <24000000>;
> +};
> +
> +&ehci0 {
> +	status = "okay";
> +};
> +
> +&emac {
> +	pinctrl-0 = <&rgmii_pe_pins>;
> +	pinctrl-names = "default";
> +	phy-handle = <&ext_rgmii_phy>;
> +	phy-mode = "rgmii-id";
> +	phy-supply = <&reg_vcc_3v3>;
> +	status = "okay";
> +};
> +
> +&mdio {
> +	ext_rgmii_phy: ethernet-phy@1 {
> +		compatible = "ethernet-phy-ieee802.3-c22";
> +		reg = <1>;
> +	};
> +};
> +
> +&mmc0 {
> +	broken-cd;
> +	bus-width = <4>;
> +	disable-wp;
> +	vmmc-supply = <&reg_vcc_3v3>;
> +	vqmmc-supply = <&reg_vcc_3v3>;
> +	pinctrl-0 = <&mmc0_pins>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +};
> +
> +&ohci0 {
> +	status = "okay";
> +};
> +
> +&uart0 {
> +	pinctrl-0 = <&uart0_pb8_pins>;
> +	pinctrl-names = "default";
> +	status = "okay";
> +};
> +
> +&usb_otg {
> +	dr_mode = "otg";
> +	status = "okay";
> +};
> +
> +&usbphy {
> +	usb0_id_det-gpios = <&pio 3 21 GPIO_ACTIVE_HIGH>; /* PD21 */
> +	usb0_vbus_det-gpios = <&pio 3 20 GPIO_ACTIVE_HIGH>; /* PD20 */
> +	usb0_vbus-supply = <&reg_usbvbus>;
> +	status = "okay";
> +};
> --
> 2.37.4