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Message-Id: <20171226.122743.1534786850925610235.davem@davemloft.net> Date: Tue, 26 Dec 2017 12:27:43 -0500 (EST) From: David Miller <davem@...emloft.net> To: grygorii.strashko@...com Cc: f.fainelli@...il.com, andrew@...n.ch, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, nsekhar@...com Subject: Re: [PATCH] net: phy: micrel: ksz9031: reconfigure autoneg after phy autoneg workaround From: Grygorii Strashko <grygorii.strashko@...com> Date: Wed, 20 Dec 2017 18:45:10 -0600 > Under some circumstances driver will perform PHY reset in > ksz9031_read_status() to fix autoneg failure case (idle error count = > 0xFF). When this happens ksz9031 will not detect link status change any > more when connecting to Netgear 1G switch (link can be recovered sometimes by > restarting netdevice "ifconfig down up"). Reproduced with TI am572x board > equipped with ksz9031 PHY while connecting to Netgear 1G switch. > > Fix the issue by reconfiguring autonegotiation after PHY reset in > ksz9031_read_status(). > > Fixes: d2fd719bcb0e ("net/phy: micrel: Add workaround for bad autoneg") > Signed-off-by: Grygorii Strashko <grygorii.strashko@...com> Applied and queued up for -stable.
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