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net: phy: broadcom: Add support code for downshift/Wirespeed

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Broadcom's Wirespeed feature allows us to configure how auto-negotiation
should behave with fewer working pairs of wires on a cable. Add support
code for retrieving and setting such downshift counters using the
recently added ethtool downshift tunables.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli
2016-11-22 11:40:55 -08:00
committed by David S. Miller
parent 5519da874a
commit d06f78c423
3 changed files with 101 additions and 0 deletions
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5
drivers/net/phy/bcm-phy-lib.h
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@@ -37,4 +37,9 @@ int bcm_phy_config_intr(struct phy_device *phydev);
int bcm_phy_enable_apd(struct phy_device *phydev, bool dll_pwr_down);
int bcm_phy_enable_eee(struct phy_device *phydev);
int bcm_phy_downshift_get(struct phy_device *phydev, u8 *count);
int bcm_phy_downshift_set(struct phy_device *phydev, u8 count);
#endif /* _LINUX_BCM_PHY_LIB_H */