Re: Allwinner H3 Orangepi PC, nic not working.

[Jared McNeill <jmcneill%invisible.ca@localhost>]

On Sun, 6 Aug 2017, trebol wrote:

> Hello Jared.
>
> First of all, thank you so much for your work.
>
> The board is working as the others, but the h3 emac is not defined in the dts files, and when I try to use the ones from u-boot-2017.05, I get
>
> sunxiemac0 at fdt1: EMAC
> sunxiemac0: soft reset timed out

Hi trebol --

The U-Boot DTS files use a different (old) encoding for pinctrl pins. In 
U-Boot arch/arm/dts/sun8i-h3.dtsi I see:

	emac_rgmii_pins: emac0@0 {
		allwinner,pins = "PD0", "PD1", "PD2", "PD3",
				"PD4", "PD5", "PD7",
				"PD8", "PD9", "PD10",
				"PD12", "PD13", "PD15",
				"PD16", "PD17";
		allwinner,function = "emac";
		allwinner,drive = <SUN4I_PINCTRL_40_MA>;
		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
	};

NetBSD expects these to be in the format defined by the Linux 4.14 binding 
spec for these nodes, so it should be:

        emac_pins_rgmii_a: emac_rgmii@0 {
                pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5",
                       "PD7", "PD8", "PD9", "PD10", "PD12", "PD13",
                       "PD15", "PD16", "PD17";
                function = "emac";
                drive-strength = <40>;
        };

Easiest way to get this working is to create a file in the NetBSD tree 
sys/arch/arm/dts/sun8i-h3-orangepi-pc.dts that looks something like this:

-- snip --

#include "../../../external/gpl2/dts/dist/arch/arm/boot/dts/sun8i-h3-orangepi-pc.dts"
#include "sun8i-h3.dtsi"

&emac {
	phy = <&phy1>;
	phy-mode = "mii";
	allwinner,use-internal-phy;
	allwinner,leds-active-low;
	status = "okay";
	phy1: ethernet-phy@1 {
		reg = <1>;
	};
};

-- snip --

Then rebuild your kernel; the resulting sun8i-h3-orangepi-pc.dtb in your 
kernel obj directory should now have this node enabled.

Cheers,
Jared