diff options
Diffstat (limited to 'drivers/net/phy/phy-c45.c')
| -rw-r--r-- | drivers/net/phy/phy-c45.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c index 7af5fa81daf6..e17672bd180e 100644 --- a/drivers/net/phy/phy-c45.c +++ b/drivers/net/phy/phy-c45.c @@ -75,6 +75,50 @@ int genphy_c45_pma_setup_forced(struct phy_device *phydev) EXPORT_SYMBOL_GPL(genphy_c45_pma_setup_forced); /** + * genphy_c45_an_config_aneg - configure advertisement registers + * @phydev: target phy_device struct + * + * Configure advertisement registers based on modes set in phydev->advertising + * + * Returns negative errno code on failure, 0 if advertisement didn't change, + * or 1 if advertised modes changed. + */ +int genphy_c45_an_config_aneg(struct phy_device *phydev) +{ + int changed = 0, ret; + u32 adv; + + linkmode_and(phydev->advertising, phydev->advertising, + phydev->supported); + + adv = linkmode_adv_to_mii_adv_t(phydev->advertising); + + ret = phy_modify_mmd(phydev, MDIO_MMD_AN, MDIO_AN_ADVERTISE, + ADVERTISE_ALL | ADVERTISE_100BASE4 | + ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM, + adv); + if (ret < 0) + return ret; + if (ret > 0) + changed = 1; + + adv = linkmode_adv_to_mii_10gbt_adv_t(phydev->advertising); + + ret = phy_modify_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL, + MDIO_AN_10GBT_CTRL_ADV10G | + MDIO_AN_10GBT_CTRL_ADV5G | + MDIO_AN_10GBT_CTRL_ADV2_5G, + adv); + if (ret < 0) + return ret; + if (ret > 0) + changed = 1; + + return changed; +} +EXPORT_SYMBOL_GPL(genphy_c45_an_config_aneg); + +/** * genphy_c45_an_disable_aneg - disable auto-negotiation * @phydev: target phy_device struct * |