From: Andrew Lunn <andrew@lunn.ch>
To: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: "David S. Miller" <davem@davemloft.net>,
Dan Carpenter <dan.carpenter@oracle.com>,
netdev@vger.kernel.org
Subject: Re: [REGRESSION, BISECTED] Broken networking with net/phy/marvell
Date: Sat, 28 Oct 2017 21:01:39 +0200 [thread overview]
Message-ID: <20171028190139.GA17645@lunn.ch> (raw)
In-Reply-To: <20171026122836.zoggs44rkasflr3m@darkstar.musicnaut.iki.fi>
On Thu, Oct 26, 2017 at 03:28:36PM +0300, Aaro Koskinen wrote:
> Hi,
>
> When upgrading from v4.13 to v4.14-rc6 on OpenRD Client, the box loses
> network connectivity.
Hi Aaro
What exactly is the PHY in the OpenRD?
>
> - mscr &= MII_88E1121_PHY_MSCR_DELAY_MASK;
> + mscr &= ~MII_88E1121_PHY_MSCR_DELAY_MASK;
Please can you print the value of mscr before it is changed.
One possibility, is that the bootloader is setting the PHY to
rgmii-id. This is now getting cleared, where earlier it was
preserved. If this is true, it should be solved by adding
phy-mode = "rgmii-id" to the ethernet node in the device tree.
Andrew
next prev parent reply other threads:[~2017-10-28 19:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-26 12:28 [REGRESSION, BISECTED] Broken networking with net/phy/marvell Aaro Koskinen
2017-10-26 13:12 ` Dan Carpenter
2017-10-26 14:06 ` Dan Carpenter
2017-10-28 19:01 ` Andrew Lunn [this message]
2017-10-30 0:19 ` Aaro Koskinen
2017-10-30 10:40 ` Andrew Lunn
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