diff options
| author | Rasmus Villemoes <rasmus.villemoes@prevas.dk> | 2019-06-04 09:34:29 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-05 05:07:57 +0200 |
| commit | a528e5be6b5f8026eda029b03340dcfa23c70824 (patch) | |
| tree | 2ab432dc73b7a96b1391f36a9aa2f73b37d65487 /drivers/net/dsa/mv88e6xxx | |
| parent | net: dsa: mv88e6xxx: implement watchdog_ops for mv88e6250 (diff) | |
| download | linux-a528e5be6b5f8026eda029b03340dcfa23c70824.tar.xz linux-a528e5be6b5f8026eda029b03340dcfa23c70824.zip | |
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>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/port.c | 12 | ||||
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/port.h | 1 |
2 files changed, 13 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index c44b2822e4dd..a41bca17cba1 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -294,6 +294,18 @@ int mv88e6185_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed) return mv88e6xxx_port_set_speed(chip, port, speed, false, false); } +/* Support 10, 100 Mbps (e.g. 88E6250 family) */ +int mv88e6250_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed) +{ + if (speed == SPEED_MAX) + speed = 100; + + if (speed > 100) + return -EOPNOTSUPP; + + return mv88e6xxx_port_set_speed(chip, port, speed, false, false); +} + /* Support 10, 100, 200, 1000, 2500 Mbps (e.g. 88E6341) */ int mv88e6341_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed) { diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h index 39c85e98fb92..1957e3e1cf47 100644 --- a/drivers/net/dsa/mv88e6xxx/port.h +++ b/drivers/net/dsa/mv88e6xxx/port.h @@ -279,6 +279,7 @@ int mv88e6xxx_port_set_duplex(struct mv88e6xxx_chip *chip, int port, int dup); int mv88e6065_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed); int mv88e6185_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed); +int mv88e6250_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed); int mv88e6341_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed); int mv88e6352_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed); int mv88e6390_port_set_speed(struct mv88e6xxx_chip *chip, int port, int speed); |