Re: [PATCH 2/2] arm64: dts: allwinner: h6: Add OrangePi 3 LTS DTS

[Jernej Škrabec]

Dne petek, 25. april 2025 ob 17:34:14 Srednjeevropski poletni čas je Andrew Lunn napisal(a):
> > > +&emac {
> > > +	pinctrl-names = "default";
> > > +	pinctrl-0 = <&ext_rgmii_pins>;
> > > +	phy-mode = "rgmii-rxid";
> > 
> > So relating to what Andrew said earlier today, should this read rgmii-id
> > instead? Since the strap resistors just set some boot-up value, but we
> > want the PHY driver to enable both RX and TX delay programmatically?
> 
> Yes.
> 
> There is a checkpatch.pl patch working its way through the system
> which will add warning about any rgmii value other than rgmii-id. Such
> values need a comment that the PCB has extra long clock
> lines. Hopefully that will make people actually stop and think about
> this, rather than just copy broken vendor code.

I spent quite some time working on ethernet support for this board. Once
I've found PHY datasheet, I confirmed that there is added delay. So this
particular board needs "rgmii-rxid" mode.

Best regards,
Jernej