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Author SHA1 Message Date
David Daney 416912a129 netdev/of/phy: Add MDIO bus multiplexer driven by GPIO lines. 
The GPIO pins select which sub bus is connected to the master.

Initially tested with an sn74cbtlv3253 switch device wired into the
MDIO bus.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2012-05-07 22:58:09 -04:00