On Fri, Aug 09, 2024 at 04:38:37PM -0700, Tristram.Ha@xxxxxxxxxxxxx wrote:
> From: Tristram Ha <tristram.ha@xxxxxxxxxxxxx>
>
> The SGMII module of KSZ9477 switch can be setup in 3 ways: 0 for direct
> connect, 1 for 1000BaseT SFP, and 2 for 10/100/1000 SFP.
>
> SFP is typically used so the default is 1. The driver can detect
> 10/100/1000 SFP and change the mode to 2. For direct connect this mode
> has to be explicitly set to 0 as driver cannot detect that
> configuration.
Could you explain this in more detail. Other SGMII blocks don't need
this. Why is this block special?
Has this anything to do with in-band signalling?
Andrew
