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SubjectRe: [PATCH v1] ARM: dts: sun8i: add FriendlyArm ZeroPi support
Hi,

Thanks for your patch

On Fri, Oct 23, 2020 at 05:09:08PM +0800, Yu-Tung Chang wrote:
> The ZeroPi is another fun board developed
> by FriendlyELEC for makers,
> hobbyists and fans.
>
> ZeroPi key features
> - Allwinner H3, Quad-core Cortex-A7@1.2GHz
> - 256MB/512MB DDR3 RAM
> - microsd slot
> - 10/100/1000Mbps Ethernet
> - Debug Serial Port
> - DC 5V/2A power-supply
>
> Signed-off-by: Yu-Tung Chang <mtwget@gmail.com>
> ---
> .../devicetree/bindings/arm/sunxi.yaml | 5 ++
> arch/arm/boot/dts/Makefile | 1 +
> arch/arm/boot/dts/sun8i-h3-zeropi.dts | 69 +++++++++++++++++++
> 3 files changed, 75 insertions(+)
> create mode 100644 arch/arm/boot/dts/sun8i-h3-zeropi.dts
>
> diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
> index efc9118233b4..9392a9a3f7e7 100644
> --- a/Documentation/devicetree/bindings/arm/sunxi.yaml
> +++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
> @@ -246,6 +246,11 @@ properties:
> - const: friendlyarm,nanopi-neo-plus2
> - const: allwinner,sun50i-h5
>
> + - description: FriendlyARM ZeroPi
> + items:
> + - const: friendlyarm,zeropi
> + - const: allwinner,sun50i-h3
> +
> - description: Gemei G9 Tablet
> items:
> - const: gemei,g9
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 4572db3fa5ae..f05e54257947 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1187,6 +1187,7 @@ dtb-$(CONFIG_MACH_SUN8I) += \
> sun8i-h3-orangepi-plus2e.dtb \
> sun8i-h3-orangepi-zero-plus2.dtb \
> sun8i-h3-rervision-dvk.dtb \
> + sun8i-h3-zeropi.dtb \
> sun8i-h3-emlid-neutis-n5h3-devboard.dtb \
> sun8i-r16-bananapi-m2m.dtb \
> sun8i-r16-nintendo-nes-classic.dtb \
> diff --git a/arch/arm/boot/dts/sun8i-h3-zeropi.dts b/arch/arm/boot/dts/sun8i-h3-zeropi.dts
> new file mode 100644
> index 000000000000..388ad6b6da2b
> --- /dev/null
> +++ b/arch/arm/boot/dts/sun8i-h3-zeropi.dts
> @@ -0,0 +1,69 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (C) 2020 Yu-Tung Chang <mtwget@gmail.com>
> + */
> +
> +#include "sun8i-h3-nanopi.dtsi"
> +
> +/ {
> + model = "FriendlyARM ZeroPi";
> + compatible = "friendlyarm,zeropi", "allwinner,sun8i-h3";
> +
> + aliases {
> + ethernet0 = &emac;
> + };
> +
> + reg_gmac_3v3: gmac-3v3 {
> + compatible = "regulator-fixed";
> + pinctrl-names = "default";
> + pinctrl-0 = <&gmac_power_pin_nanopi>;
> + regulator-name = "gmac-3v3";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + startup-delay-us = <100000>;
> + enable-active-high;
> + gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
> + };
> +};
> +
> +&ehci0 {
> + status = "okay";
> +};
> +
> +&ohci0 {
> + status = "okay";
> +};
> +
> +&pio {
> + gmac_power_pin_nanopi: gmac_power_pin@0 {
> + pins = "PD6";
> + function = "gpio_out";
> + };
> +};

You don't need that node, it's going to be done automatically with the
GPIO you defined earlier.

> +&external_mdio {
> + ext_rgmii_phy: ethernet-phy@1 {
> + compatible = "ethernet-phy-ieee802.3-c22";
> + reg = <7>;

That address doesn't match the unit-adress in the DT node name.

> + };
> +};
> +
> +&emac {
> + pinctrl-names = "default";
> + pinctrl-0 = <&emac_rgmii_pins>;
> + phy-supply = <&reg_gmac_3v3>;
> + phy-handle = <&ext_rgmii_phy>;
> + phy-mode = "rgmii";

Have you tested the network with the 5.9 kernel? There's been a lot of
DT broken due to a change in the PHY setup.

Maxime
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