diff options
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/serdes.c | 53 |
1 files changed, 33 insertions, 20 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/serdes.c b/drivers/net/dsa/mv88e6xxx/serdes.c index 6ea003678798..0658ee3b014c 100644 --- a/drivers/net/dsa/mv88e6xxx/serdes.c +++ b/drivers/net/dsa/mv88e6xxx/serdes.c @@ -1271,9 +1271,9 @@ void mv88e6390_serdes_get_regs(struct mv88e6xxx_chip *chip, int port, void *_p) } } -static int mv88e6393x_serdes_port_errata(struct mv88e6xxx_chip *chip, int lane) +static int mv88e6393x_serdes_erratum_4_6(struct mv88e6xxx_chip *chip, int lane) { - u16 reg, pcs; + u16 reg; int err; /* mv88e6393x family errata 4.6: @@ -1300,11 +1300,32 @@ static int mv88e6393x_serdes_port_errata(struct mv88e6xxx_chip *chip, int lane) if (err) return err; - err = mv88e6390_serdes_power_sgmii(chip, lane, false); - if (err) - return err; + return mv88e6390_serdes_power_sgmii(chip, lane, false); } + return 0; +} + +int mv88e6393x_serdes_setup_errata(struct mv88e6xxx_chip *chip) +{ + int err; + + err = mv88e6393x_serdes_erratum_4_6(chip, MV88E6393X_PORT0_LANE); + if (err) + return err; + + err = mv88e6393x_serdes_erratum_4_6(chip, MV88E6393X_PORT9_LANE); + if (err) + return err; + + return mv88e6393x_serdes_erratum_4_6(chip, MV88E6393X_PORT10_LANE); +} + +static int mv88e6393x_serdes_erratum_4_8(struct mv88e6xxx_chip *chip, int lane) +{ + u16 reg, pcs; + int err; + /* mv88e6393x family errata 4.8: * When a SERDES port is operating in 1000BASE-X or SGMII mode link may * not come up after hardware reset or software reset of SERDES core. @@ -1334,29 +1355,21 @@ static int mv88e6393x_serdes_port_errata(struct mv88e6xxx_chip *chip, int lane) MV88E6393X_ERRATA_4_8_REG, reg); } -int mv88e6393x_serdes_setup_errata(struct mv88e6xxx_chip *chip) -{ - int err; - - err = mv88e6393x_serdes_port_errata(chip, MV88E6393X_PORT0_LANE); - if (err) - return err; - - err = mv88e6393x_serdes_port_errata(chip, MV88E6393X_PORT9_LANE); - if (err) - return err; - - return mv88e6393x_serdes_port_errata(chip, MV88E6393X_PORT10_LANE); -} - int mv88e6393x_serdes_power(struct mv88e6xxx_chip *chip, int port, int lane, bool on) { u8 cmode = chip->ports[port].cmode; + int err; if (port != 0 && port != 9 && port != 10) return -EOPNOTSUPP; + if (on) { + err = mv88e6393x_serdes_erratum_4_8(chip, lane); + if (err) + return err; + } + switch (cmode) { case MV88E6XXX_PORT_STS_CMODE_SGMII: case MV88E6XXX_PORT_STS_CMODE_1000BASEX: |