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net: dsa: mv88e6xxx: 6390 vs 6390X SERDES support 

The 6390 has two SERDES interfaces, used by ports 9 and 10.  The 6390X
has eight SERDES interfaces. These allow ports 9 and 10 to do 10G. Or
if lower speeds are used, some of the SERDES interfaces can be used by
ports 2-8 for 1000Base-X.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2018-08-09 15:38:41 +02:00 committed by David S. Miller
parent a8c01c0d94
commit 07ffbd74d1
3 changed files with 53 additions and 3 deletions
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4
drivers/net/dsa/mv88e6xxx/chip.c
View File

@ -3234,7 +3234,7 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
.rmu_disable = mv88e6390_g1_rmu_disable,
.vtu_getnext = mv88e6390_g1_vtu_getnext,
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power,
.serdes_power = mv88e6390x_serdes_power,
.gpio_ops = &mv88e6352_gpio_ops,
.phylink_validate = mv88e6390x_phylink_validate,
};
@ -3697,7 +3697,7 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
.rmu_disable = mv88e6390_g1_rmu_disable,
.vtu_getnext = mv88e6390_g1_vtu_getnext,
.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
.serdes_power = mv88e6390_serdes_power,
.serdes_power = mv88e6390x_serdes_power,
.gpio_ops = &mv88e6352_gpio_ops,
.avb_ops = &mv88e6390_avb_ops,
.ptp_ops = &mv88e6352_ptp_ops,

51
drivers/net/dsa/mv88e6xxx/serdes.c
View File

@ -174,11 +174,41 @@ int mv88e6352_serdes_get_stats(struct mv88e6xxx_chip *chip, int port,
return ARRAY_SIZE(mv88e6352_serdes_hw_stats);
}
/* Return the SERDES lane address a port is using. Only Ports 9 and 10
* have SERDES lanes. Returns -ENODEV if a port does not have a lane.
*/
static int mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port)
{
u8 cmode;
int err;
err = mv88e6xxx_port_get_cmode(chip, port, &cmode);
if (err)
return err;
switch (port) {
case 9:
if (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASE_X ||
cmode == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
return MV88E6390_PORT9_LANE0;
return -ENODEV;
case 10:
if (cmode == MV88E6XXX_PORT_STS_CMODE_1000BASE_X ||
cmode == MV88E6XXX_PORT_STS_CMODE_SGMII ||
cmode == MV88E6XXX_PORT_STS_CMODE_2500BASEX)
return MV88E6390_PORT10_LANE0;
return -ENODEV;
default:
return -ENODEV;
}
}
/* Return the SERDES lane address a port is using. Ports 9 and 10 can
* use multiple lanes. If so, return the first lane the port uses.
* Returns -ENODEV if a port does not have a lane.
*/
static int mv88e6390_serdes_get_lane(struct mv88e6xxx_chip *chip, int port)
static int mv88e6390x_serdes_get_lane(struct mv88e6xxx_chip *chip, int port)
{
u8 cmode_port9, cmode_port10, cmode_port;
int err;
@ -350,6 +380,25 @@ int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on)
if (lane < 0)
return lane;
switch (port) {
case 9 ... 10:
return mv88e6390_serdes_power_lane(chip, port, lane, on);
}
return 0;
}
int mv88e6390x_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on)
{
int lane;
lane = mv88e6390x_serdes_get_lane(chip, port);
if (lane == -ENODEV)
return 0;
if (lane < 0)
return lane;
switch (port) {
case 2 ... 4:
case 5 ... 7:

1
drivers/net/dsa/mv88e6xxx/serdes.h
View File

@ -47,6 +47,7 @@
int mv88e6341_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on);
int mv88e6352_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on);
int mv88e6390_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on);
int mv88e6390x_serdes_power(struct mv88e6xxx_chip *chip, int port, bool on);
int mv88e6352_serdes_get_sset_count(struct mv88e6xxx_chip *chip, int port);
int mv88e6352_serdes_get_strings(struct mv88e6xxx_chip *chip,
int port, uint8_t *data);