Re: [PATCH v2] net: dsa: microchip: implement KSZ87xx Module 3 low-loss cable errata

[Fidelio LAWSON]

On 4/8/26 14:43, Andrew Lunn wrote:
> > The control register defines the following modes:
> >    bits [1:0]:
> >      00 = workaround disabled
> >      01 = workaround 1 (DSP EQ training adjustment, LinkMD reg 0x3c)
> >      10 = workaround 2 (receiver LPF bandwidth, LinkMD reg 0x4c)
>
> There was a comment, which i only read after making the suggestion to
> use two bits, of exposing the different low pass filter bandwidths,
> rather than just picking one value. How useful is that?
>
>         Andrew

Initially I limited the LPF setting to the single bandwidth explicitly 
recommended by the errata (62MHz).
But I’ll extend the implementation to expose all documented LPF 
bandwidth options so the interface is more flexible for users.

Best regards,
Fidelio