diff options
| author |   Andrew Lunn <andrew@lunn.ch> | 2018-08-09 15:38:46 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-08-09 11:08:20 -0700 |
| commit | 364e9d7776a389941cea6c40783f90c236b402ce (patch) | |
| tree | 7f8365a8a0d10a965ecb4581e9db0fc191fa20cd /drivers/net/dsa | |
| parent | net: dsa: mv88e6xxx: Cache the port cmode (diff) | |
| download | linux-dev-364e9d7776a389941cea6c40783f90c236b402ce.tar.xz linux-dev-364e9d7776a389941cea6c40783f90c236b402ce.zip | |
net: dsa: mv88e6xxx: Power on/off SERDES on cmode change
The 6390 family has a number of SERDES interfaces per port. When the
cmode changes, eg 1000Base-X to XAUI, the SERDES interface in use will
also change. Power down the old SERDES interface and power up the new
SERDES interface.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/port.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index d236f3420f2d..977b4cb82299 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -19,6 +19,7 @@ #include "chip.h" #include "port.h" +#include "serdes.h" int mv88e6xxx_port_read(struct mv88e6xxx_chip *chip, int port, int reg, u16 *val) @@ -372,6 +373,10 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port, cmode = 0; } + err = mv88e6390_serdes_power(chip, port, false); + if (err) + return err; + if (cmode) { err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®); if (err) @@ -383,6 +388,10 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port, err = mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_STS, reg); if (err) return err; + + err = mv88e6390_serdes_power(chip, port, true); + if (err) + return err; } chip->ports[port].cmode = cmode; |