From: Andrew Lunn <andrew@lunn.ch>
To: Martin Schiller <ms@dev.tdt.de>
Cc: Tim Harvey <tharvey@gateworks.com>,
Hauke Mehrtens <hauke@hauke-m.de>,
martin.blumenstingl@googlemail.com,
Florian Fainelli <f.fainelli@gmail.com>,
hkallweit1@gmail.com,
Russell King - ARM Linux <linux@armlinux.org.uk>,
David Miller <davem@davemloft.net>,
kuba@kernel.org, netdev <netdev@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next v6] net: phy: intel-xway: Add RGMII internal delay configuration
Date: Tue, 11 Jan 2022 14:34:19 +0100 [thread overview]
Message-ID: <Yd2HW2U2GDgqAkM9@lunn.ch> (raw)
In-Reply-To: <94120968908a8ab073fa2fc0dd56b17d@dev.tdt.de>
> > Martin,
> >
> > I've got some boards with the GPY111 phy on them and I'm finding that
> > modifying XWAY_MDIO_MIICTRL to change the skew has no effect unless I
> > do a soft reset (BCMR_RESET) first. I don't see anything in the
> > datasheet which specifies this to be the case so I'm interested it
> > what you have found. Are you sure adjusting the skews like this
> > without a soft (or hard pin based) reset actually works?
> >
> > Best regards,
> >
> > Tim
>
> Hello Tim,
>
> yes, you are right. It is not applied immediately. The link needs to be
> toggled to get this settings active. But my experience shows that this
> would be done in the further boot process anyway e.g. by restarting the
> autonegotiation etc.
Hi Martin
Have you verified this? Maybe try NFS root, so the kernel is the one
up'ing the interface, before user space exists.
Andrew
next prev parent reply other threads:[~2022-01-11 13:34 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-19 8:27 [PATCH net-next v6] net: phy: intel-xway: Add RGMII internal delay configuration Martin Schiller
2021-07-19 20:56 ` Andrew Lunn
2021-07-20 11:50 ` Martin Schiller
2022-01-10 23:12 ` Tim Harvey
2022-01-11 7:44 ` Martin Schiller
2022-01-11 13:34 ` Andrew Lunn [this message]
2022-01-11 19:12 ` Tim Harvey
2022-01-12 11:07 ` Martin Schiller
2022-01-12 13:14 ` Andrew Lunn
2022-01-12 18:24 ` Tim Harvey
2022-01-12 13:46 ` Russell King (Oracle)
2022-01-12 18:25 ` Tim Harvey
2022-01-13 6:32 ` Martin Schiller
2022-02-01 20:28 ` Tim Harvey
2022-02-01 20:49 ` Andrew Lunn
2023-02-22 16:04 ` Michael Walle
2023-02-24 6:25 ` Martin Schiller
2023-02-24 8:04 ` Michael Walle
2023-02-24 8:48 ` Martin Schiller
2023-03-02 15:03 ` Michael Walle
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