net: mv88e6xxx: Fix ingress rate removal for mv6131 chips

The PORT_RATE_CONTROL register works differently on 88e6095/6095f/6131
in comparison to 6123/61/65, and 0x0 disables. The distinction was lost
Linux 4.1 --> 4.2

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index d1d9d3c..7106790 100644 (file)
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -2656,15 +2656,19 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
                        return ret;
        }
 
+       /* Rate Control: disable ingress rate limiting. */
        if (mv88e6xxx_6352_family(chip) || mv88e6xxx_6351_family(chip) ||
            mv88e6xxx_6165_family(chip) || mv88e6xxx_6097_family(chip) ||
-           mv88e6xxx_6185_family(chip) || mv88e6xxx_6095_family(chip) ||
            mv88e6xxx_6320_family(chip)) {
-               /* Rate Control: disable ingress rate limiting. */
                ret = _mv88e6xxx_reg_write(chip, REG_PORT(port),
                                           PORT_RATE_CONTROL, 0x0001);
                if (ret)
                        return ret;
+       } else if (mv88e6xxx_6185_family(chip) || mv88e6xxx_6095_family(chip)) {
+               ret = _mv88e6xxx_reg_write(chip, REG_PORT(port),
+                                          PORT_RATE_CONTROL, 0x0000);
+               if (ret)
+                       return ret;
        }
 
        /* Port Control 1: disable trunking, disable sending