[U-Boot] [PATCH] net: phy: micrel: disable NAND-tree for KSZ8051

[Joe Hershberger]

Hi Sylvain,

On Wed, Oct 7, 2015 at 3:54 PM, Sylvain Rochet
<sylvain.rochet at finsecur.com> wrote:
> NAND-tree is used to check wiring between MAC and PHY using NAND gates
> on the PHY side, hence the name.
>
> NAND-tree initial status is latched at reset by probing the IRQ pin.
> However some devices are sharing the PHY IRQ pin with other peripherals
> such as Atmel SAMA5D[34]x-EK boards when using the optional TM7000
> display module, therefore they are switching the PHY in NAND-tree test
> mode depending on the current IRQ line status at reset.
>
> This patch ensure PHY is not in NAND-tree test mode only for the Micrel
> KSZ8051 PHY used by Atmel. There are other Micrel PHY affected but I
> doubt they are used on such weird hardware design.
>
> Signed-off-by: Sylvain Rochet <sylvain.rochet at finsecur.com>

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