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8e0a86e6a1
The mxl-gpy driver apparently was built in the assumption that SGMII auto-negotiation is always switched on at the MAC. This may be true for few rather recent drivers (why?), but certainly isn't for most drivers unless 'managed = "in-band-status"' is set in device tree. Add patch to the mediatek target which reduces mxl-gpy to behave more like an ordinary PHY driver using out-of-band status. This allows to use these PHYs without rate-adaptation which seems to be at least partially broken/racy in some revisions of the PHY and/or internal PHY firmware. Signed-off-by: Daniel Golle <daniel@makrotopia.org>