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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2014-04-15 15:50:19 +0200
committerDavid S. Miller <davem@davemloft.net>2014-04-16 20:36:12 +0200
commitb9d12085f2f531fdea67f0361564e0812696227c (patch)
treea2181a720f57658e4db0789f24ec1140e2e7f228 /Documentation/atomic_ops.txt
parentsfc:On MCDI timeout, issue an FLR (and mark MCDI to fail-fast) (diff)
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net: phy: add minimal support for QSGMII PHY
This commit adds the necessary definitions for the PHY layer to recognize "qsgmii" as a valid PHY interface. A QSMII interface, as defined at http://en.wikipedia.org/wiki/Media_Independent_Interface#Quad_Serial_Gigabit_Media_Independent_Interface, is "is a method of combining four SGMII lines into a 5Gbit/s interface. QSGMII, like SGMII, uses LVDS signalling for the TX and RX data and a single LVDS clock signal. QSGMII uses significantly fewer signal lines than four SGMII busses." This type of MAC <-> PHY connection might require special handling on the MAC driver side, so it should be possible to express this type of MAC <-> PHY connection, for example in the Device Tree. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: devicetree@vger.kernel.org Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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