Andrew Lunn says:
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net: phy: T1 support
T1 PHYs make use of a single twisted pair, rather than the traditional
2 pair for 100BaseT or 4 pair for 1000BaseT. This patchset adds link
modes for 100BaseT1 and 1000BaseT1, and them makes use of 100BaseT1 in
the list of PHY features used by current T1 drivers.
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Signed-off-by: David S. Miller <davem@davemloft.net>