On Fri, Mar 25, 2016 at 12:22 PM, Michael Haas
<h...@computerlinguist.org> wrote:
> This patch introduces CONFIG_RTL8211X_PHY_FORCE_MASTER. If this
> define is set, RTL8211x PHYs (except for the RTL8211F) will have their
> 1000BASE-T master/slave autonegotiation disabled and forced to master
> mode.
>
> This is helpful for PHYs like the RTL8211C which produce unstable links
> in slave mode. Such problems have been found on the A20-Olimex-SOM-EVB
> and A20-OLinuXino-Lime2.
>
> There is no proper way to identify affected PHYs in software as the
> RTL8211C shares its UID with the RTL8211B. Thus, this fix requires
> the introduction of an #ifdef.
>
> CC: fra...@gmail.com
> CC: mer...@debian.org
> CC: hdego...@redhat.com
> CC: i...@hellion.org.uk
> CC: joe.hershber...@ni.com
>
> Signed-off-by: Michael Haas <h...@computerlinguist.org>
> Tested-by: Karsten Merker <mer...@debian.org>

Acked-by: Joe Hershberger <joe.hershber...@ni.com>
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