net: phy: Add mdi(x) support in Microsemi PHYs driver
To connect two ports of the same configuration (MDI to MDI or MDI-X to MDI-X) with a 10/100/1000 Mbit/s connection, an Ethernet crossover cable is needed to cross over the transmit and receive signals in the cable, so that they are matched at the connector level. When connecting an MDI port to an MDI-X port a straight through cable is used while to connect two MDI ports or two MDI-X ports a crossover cable must be used. Conventionally MDI is used on end devices while MDI-X is used on hubs and switches Auto MDI-X automatically detects the required cable connection type and configures the connection appropriately, removing the need for crossover cables to interconnect switches or connecting PCs peer-to-peer. Signed-off-by: NRaju Lakkaraju <Raju.Lakkaraju@microsemi.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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