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

Guo Ren
2022-11-26T00:26:10Z

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

On Sat, Nov 26, 2022 at 7:47 AM Samuel Holland <samuel@sholland.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@sholland.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@sholland.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