[PATCH] arm64: dts: imx8mp-debix-model-a: Disable EEE for 1000T

[Laurent Pinchart]

On Mon, Oct 27, 2025 at 11:23:03AM +0100, Oleksij Rempel wrote:
> On Mon, Oct 27, 2025 at 12:02:27PM +0200, Laurent Pinchart wrote:
> > Hi Oleksij,
> > > Please note, RTL8211E PHY do use undocumented SmartEEE mode by default.
> > > It ignores RGMII LPI opcodes and doing own thing. It can be confirmed by
> > > monitoring RGMII TX and MDI lines with oscilloscope and changing
> > > tx-timer configurations. I also confirmed this information from other
> > > source. To disable SmartEEE and use plain MAC based mode, NDA documentation
> > > is needed.
> > 
> > That's useful information, thank you. Would you by any chance to know if
> > such NDA would allow contributing the feature upstream ?
> 
> Good question, but the NDA process was actually aborted. We didn't move
> forward due to a lack of time and ultimately, a lack of commercial
> interest from any projects or customers for this PHY.

Fair enough. I've tried :-)

If we can't disable SmartEEE in the PHY, does it mean we need to somehow
disable EEE in the MAC, but still program the PHY to advertise EEE to
the link partner ?

-- 
Regards,

Laurent Pinchart