net: dsa: mv88e6xxx: Respect SPEED_UNFORCED, don't set force bit
The SPEED_UNFORCED indicates the MAC & PHY should perform
auto-negotiation to determine a speed which works. If this is called
for, don't set the force bit. If it is set, the MAC actually does
10Gbps, why the internal PHYs don't support.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index e4978f6..af4772d8 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -213,7 +213,7 @@ static int mv88e6xxx_port_set_speed(struct mv88e6xxx_chip *chip, int port,
reg &= ~PORT_PCS_CTRL_ALTSPEED;
if (force_bit) {
reg &= ~PORT_PCS_CTRL_FORCE_SPEED;
- if (speed)
+ if (speed != SPEED_UNFORCED)
ctrl |= PORT_PCS_CTRL_FORCE_SPEED;
}
reg |= ctrl;