Re: 回覆: 回覆: 回覆: [PATCH v2 05/10] ARM: dts: aspeed: system1: Add RGMII support

[Andrew Lunn <andrew@lunn.ch>]

On Mon, Jan 13, 2025 at 08:26:08AM -0600, Ninad Palsule wrote:
> Hi Jacky,
> 
> On 1/13/25 00:22, Jacky Chou wrote:
> > Hi Ninad,
> > 
> > > Thanks. When are you planning to push this change? I might need to hold on to
> > > mac changes until then.
> > Yes. We have a plan to push the patch about RGMII delay configuration.
> > Currently, I try to align our SDK to kernel.
> 
> Thanks. What will be the "phy-mode" value after you make these changes?
> 
> Will it be "rgmii-id" for MAC1..4?

It should be.

> If that is the case then I can test it with current configuration which may
> add extra delays in the RX from PHY side.

I would then expect traffic will not flow correctly, and your see CRC
errors, because of double delays. It is however a useful test, because
if it does somehow work, it probably means the PHY driver is also
broken with its handling of delays. I don't know what PHY driver you
are using, but those in mainline should be correct, it is something i
try to review carefully.

	Andrew