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Message-ID: <CAJF2gTRZg6uPXKQMdx6f1cj-SojwTkJ1X7X7y-HeGP2yy9taxA@mail.gmail.com>
Date:   Sat, 26 Nov 2022 08:25:24 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Samuel Holland <samuel@...lland.org>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        linux-sunxi@...ts.linux.dev, Palmer Dabbelt <palmer@...belt.com>,
        Conor Dooley <conor@...nel.org>,
        linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Jisheng Zhang <jszhang@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Andre Przywara <andre.przywara@....com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Anup Patel <apatel@...tanamicro.com>,
        Atish Patra <atishp@...osinc.com>,
        Christian Hewitt <christianshewitt@...il.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Heinrich Schuchardt <heinrich.schuchardt@...onical.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Stanislav Jakubek <stano.jakubek@...il.com>
Subject: Re: [PATCH v2 09/12] riscv: dts: allwinner: Add Dongshan Nezha STU devicetree

Reviewed-by: Guo Ren <guoren@...nel.org>

On Sat, Nov 26, 2022 at 7:47 AM Samuel Holland <samuel@...lland.org> wrote:
>
> 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@...lland.org>
> ---
>
> (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@...lland.org>
> +
> +#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;
> +               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
>


-- 
Best Regards
 Guo Ren

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