commit 6cc2ff82492d89f763e69ea6b8681926aceda610
author Timur Tabi <timur@freescale.com> Fri Aug 24 09:10:53 2012 +0000
committer David S. Miller <davem@davemloft.net> Thu Aug 30 12:54:48 2012 -0400
tree 37cc43ef6eee4386bc68202f6681507e91bdd20a
parent e92bdf4bf199f582dae8249a21e991db4bf66480

netdev/phy: add MDIO bus multiplexer driven by a memory-mapped device

Add support for an MDIO bus multiplexer controlled by a simple memory-mapped
device, like an FPGA.  The device must be memory-mapped and contain only
8-bit registers (which keeps things simple).

Tested on a Freescale P5020DS board which uses the "PIXIS" FPGA attached
to the localbus.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>