mvneta: add forgotten initialization of autonegotiation bits
The commit 898b2970 ("mvneta: implement SGMII-based in-band link state signaling") changed mvneta_adjust_link() so that it does not clear the auto-negotiation bits in MVNETA_GMAC_AUTONEG_CONFIG register. This was necessary for auto-negotiation mode to work. Unfortunately I haven't checked if these bits are ever initialized. It appears they are not. This patch adds the missing initialization of the auto-negotiation bits in the MVNETA_GMAC_AUTONEG_CONFIG register. It fixes the following regression: https://www.mail-archive.com/netdev@vger.kernel.org/msg67928.html Since the patch was tested to fix a regression, it should be applied to stable tree. Tested-by: NArnaud Ebalard <arno@natisbad.org> CC: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> CC: Florian Fainelli <f.fainelli@gmail.com> CC: netdev@vger.kernel.org CC: linux-kernel@vger.kernel.org CC: stable@vger.kernel.org Signed-off-by: NStas Sergeev <stsp@users.sourceforge.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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