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  • Russell King's avatar
    net: phy: marvell: fix Marvell 88E1512 used in SGMII mode · a13c0652
    Russell King authored
    When an Marvell 88E1512 PHY is connected to a nic in SGMII mode, the
    fiber page is used for the SGMII host-side connection.  The PHY driver
    notices that SUPPORTED_FIBRE is set, so it tries reading the fiber page
    for the link status, and ends up reading the MAC-side status instead of
    the outgoing (copper) link.  This leads to incorrect results reported
    via ethtool.
    If the PHY is connected via SGMII to the host, ignore the fiber page.
    However, continue to allow the existing power management code to
    suspend and resume the fiber page.
    Fixes: 6cfb3bcc
     ("Marvell phy: check link status in case of fiber link.")
    Signed-off-by: default avatarRussell King <>
    Signed-off-by: default avatarDavid S. Miller <>