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net: dsa: mv88e6xxx: Add EEE support
EEE configuration is similar for the various MV88E6xxx chips. Add generic support for it. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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2 changed files with 54 additions and 0 deletions
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@ -649,6 +649,57 @@ int mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int addr, int regnum,
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return mv88e6xxx_phy_wait(ds);
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}
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int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
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{
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int reg;
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reg = mv88e6xxx_phy_read_indirect(ds, port, 16);
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if (reg < 0)
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return -EOPNOTSUPP;
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e->eee_enabled = !!(reg & 0x0200);
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e->tx_lpi_enabled = !!(reg & 0x0100);
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reg = REG_READ(REG_PORT(port), 0);
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e->eee_active = !!(reg & 0x0040);
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return 0;
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}
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static int mv88e6xxx_eee_enable_set(struct dsa_switch *ds, int port,
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bool eee_enabled, bool tx_lpi_enabled)
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{
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int reg, nreg;
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reg = mv88e6xxx_phy_read_indirect(ds, port, 16);
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if (reg < 0)
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return reg;
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nreg = reg & ~0x0300;
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if (eee_enabled)
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nreg |= 0x0200;
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if (tx_lpi_enabled)
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nreg |= 0x0100;
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if (nreg != reg)
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return mv88e6xxx_phy_write_indirect(ds, port, 16, nreg);
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return 0;
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}
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int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
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struct phy_device *phydev, struct ethtool_eee *e)
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{
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int ret;
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ret = mv88e6xxx_eee_enable_set(ds, port, e->eee_enabled,
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e->tx_lpi_enabled);
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if (ret)
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return -EOPNOTSUPP;
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return 0;
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}
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static int __init mv88e6xxx_init(void)
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{
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#if IS_ENABLED(CONFIG_NET_DSA_MV88E6131)
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@ -88,6 +88,9 @@ int mv88e6xxx_eeprom_busy_wait(struct dsa_switch *ds);
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int mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int addr, int regnum);
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int mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int addr, int regnum,
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u16 val);
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int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e);
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int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
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struct phy_device *phydev, struct ethtool_eee *e);
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extern struct dsa_switch_driver mv88e6131_switch_driver;
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extern struct dsa_switch_driver mv88e6123_61_65_switch_driver;
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