net: dsa: mv88e6xxx: implement port_set_speed for mv88e6250
The data sheet also mentions the possibility of selecting 200 Mbps for the MII ports (ports 5 and 6) by setting the ForceSpd field to 0x2 (aka MV88E6065_PORT_MAC_CTL_SPEED_200). However, there's a note that "actual speed is determined by bit 8 above", and flipping back a page, one finds that bits 13:8 are reserved... So without further information on what bit 8 means, let's stick to supporting just 10 and 100 Mbps on all ports. Reviewed-by:Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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855cdfde
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