From: Timur Tabi <timur@freescale.com>
Date: Fri, 24 Aug 2012 09:10:53 +0000 (+0000)
Subject: netdev/phy: add MDIO bus multiplexer driven by a memory-mapped device
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~47^2~271
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6cc2ff82492d89f763e69ea6b8681926aceda610;p=pandora-kernel.git

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>
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