From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Lunn <andrew@lunn.ch>
Subject: Re: [PATCH (net.git)] net: phy: at803x: disable by default the
 hibernation feature
Date: Tue, 25 Oct 2016 11:00:07 +0200
Message-ID: <20161025090007.GB21818@lunn.ch>
References: <1477384282-17878-1-git-send-email-peppe.cavallaro@st.com>
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Cc: netdev@vger.kernel.org, Matus Ujhelyi <ujhelyi.m@gmail.com>
To: Giuseppe Cavallaro <peppe.cavallaro@st.com>
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> For example, while booting a Kernel the SYNP MAC (stmmac) fails
> to initialize own DMA engine if the phy entered in hibernation
> before.

Have you tried fixing stmmac instead?

     Andrew