On Mon, Aug 12, 2019 at 09:20:02PM +0200, Heiner Kallweit wrote:
> After configuring and restarting aneg we immediately try to read the
> link status. On some systems the PHY may not yet have cleared the
> "aneg complete" and "link up" bits, resulting in a false link-up
> signal. See [0] for a report.
> Clause 22 and 45 both require the PHY to keep the AN_RESTART
> bit set until the PHY actually starts auto-negotiation.
> Let's consider this in the generic functions for reading link status.
> The commit marked as fixed is the first one where the patch applies
> cleanly.
>
> [0] https://marc.info/?t=156518400300003&r=1&w=2
>
> Fixes: c1164bb1a631 ("net: phy: check PMAPMD link status only in
> genphy_c45_read_link")
> Tested-by: Yonglong Liu <liuyongl...@huawei.com>
> Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
Reviewed-by: Andrew Lunn <and...@lunn.ch>
Andrew
