[PATCH net-next 1/2] net: pcs: xpcs: enable skip xPCS soft reset
Andrew Lunn
andrew at lunn.ch
Wed Aug 11 07:20:56 PDT 2021
> > BIOS does configured the SerDes. The problem here is that all the
> > configurations done by BIOS are being reset at xpcs_create().
> >
> > We would want user of the pcs-xpcs module (stmmac, sja1105) to have
> > control whether or not we need to perform to the soft reset in the
> > xpcs_create() call.
>
> I understood Andrew's response as suggesting to introduce the ability for
> xpcs_create() to make a BIOS call which would configure the SerDes after
> xpcs_soft_reset().
Yes. Exactly. That is what ACPI is for, so we should use it for this.
Andrew
More information about the linux-arm-kernel
mailing list