[U-Boot] [PATCH 2/5] net: phy: micrel: Separate KSZ9000 drivers from KSZ8000 drivers

[Joe Hershberger]

On Fri, Jul 7, 2017 at 1:36 PM, Alexandru Gagniuc <alex.g at adaptrum.com> wrote:
> The KS8721BL and KSZ9021 PHYs are software-incompatible, yet they
> share the same ID. Drivers for bothe PHYs cannot safely coexist, so
> the solution was to use #ifdefs to select between the two drivers.
>
> As a result KSZ9031, which has a unique ID, is now caught in the
> crossfire. Unless CONFIG_PHY_MICREL_KSZ9031 is defined, the KSZ9031
> will not function properly, as some essential configuration code is
> ifdef'd-out.
>
> To prevent such situations, move the KSZ9000 drivers to a separate
> file, and place them under a separate Kconfig option. While it is
> possible to enable both KSZ8000 and KSZ9000 drivers at the same time,
> the assumption is that it is highly unlikely for a system to contain
> both a KSZ8000 and a KSZ9000 PHY, and that only one of the drivers
> will be enabled at any given time.
>
> Signed-off-by: Alexandru Gagniuc <alex.g at adaptrum.com>

This seems like a positive move for now. We can't avoid all clean-up
waiting for the bigger future.

Acked-by: Joe Hershberger <joe.hershberger at ni.com>