From 07ffbd74d1786d13a4f3a6bc01400ea59e8b19c0 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Thu, 9 Aug 2018 15:38:41 +0200 Subject: 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 Signed-off-by: David S. Miller --- drivers/net/dsa/mv88e6xxx/chip.c | 4 +-- drivers/net/dsa/mv88e6xxx/serdes.c | 51 +++++++++++++++++++++++++++++++++++++- drivers/net/dsa/mv88e6xxx/serdes.h | 1 + 3 files changed, 53 insertions(+), 3 deletions(-) (limited to 'drivers/net/dsa') diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 1427541df316..4c9ae5b9440b 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -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, diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c index a218870971fe..c534749fb1b6 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.c +++ b/drivers/net/dsa/mv88e6xxx/serdes.c @@ -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: diff --git a/drivers/net/dsa/mv88e6xxx/serdes.h b/drivers/net/dsa/mv88e6xxx/serdes.h index b6e5fbd46b5e..05c4825c36e4 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.h +++ b/drivers/net/dsa/mv88e6xxx/serdes.h @@ -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); -- cgit v1.2.3-59-g8ed1b