From: Andrew Lunn <andrew@lunn.ch>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Matthew Hagan <mnhagan88@gmail.com>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
linux@armlinux.org.uk, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, John Crispin <john@phrozen.org>,
Jonathan McDowell <noodles@earth.li>,
Rob Herring <robh+dt@kernel.org>,
devicetree@vger.kernel.org
Subject: Re: [PATCH 2/2] dt-bindings: net: dsa: qca8k: Add PORT0_PAD_CTRL properties
Date: Fri, 17 Jul 2020 00:32:36 +0200 [thread overview]
Message-ID: <20200716223236.GA1314837@lunn.ch> (raw)
In-Reply-To: <20200716150925.0f3e01b8@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
On Thu, Jul 16, 2020 at 03:09:25PM -0700, Jakub Kicinski wrote:
> On Mon, 13 Jul 2020 21:50:26 +0100 Matthew Hagan wrote:
> > Add names and decriptions of additional PORT0_PAD_CTRL properties.
> >
> > Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
> > ---
> > Documentation/devicetree/bindings/net/dsa/qca8k.txt | 8 ++++++++
> > 1 file changed, 8 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.txt b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
> > index ccbc6d89325d..3d34c4f2e891 100644
> > --- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt
> > +++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
> > @@ -13,6 +13,14 @@ Optional properties:
> >
> > - reset-gpios: GPIO to be used to reset the whole device
> >
> > +Optional MAC configuration properties:
> > +
> > +- qca,exchange-mac0-mac6: If present, internally swaps MAC0 and MAC6.
>
> Perhaps we can say a little more here?
>
> > +- qca,sgmii-rxclk-falling-edge: If present, sets receive clock phase to
> > + falling edge.
> > +- qca,sgmii-txclk-falling-edge: If present, sets transmit clock phase to
> > + falling edge.
>
> These are not something that other vendors may implement and therefore
> something we may want to make generic? Andrew?
I've never seen any other vendor implement this. Which to me makes me
think this is a vendor extension, to Ciscos vendor extension of
1000BaseX.
Matthew, do you have a real use cases of these? I don't see a DT patch
making use of them. And if you do, what is the PHY on the other end
which also allows you to invert the clocks?
Andrew
next prev parent reply other threads:[~2020-07-16 23:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 20:50 [PATCH 1/2] net: dsa: qca8k: Add additional PORT0_PAD_CTRL options Matthew Hagan
2020-07-13 20:50 ` [PATCH 2/2] dt-bindings: net: dsa: qca8k: Add PORT0_PAD_CTRL properties Matthew Hagan
2020-07-16 22:09 ` Jakub Kicinski
2020-07-16 22:32 ` Andrew Lunn [this message]
2020-07-17 19:26 ` Matthew Hagan
2020-07-17 20:02 ` Florian Fainelli
2020-07-18 13:00 ` Vladimir Oltean
2020-07-21 1:59 ` Rob Herring
2020-07-16 22:38 ` Vladimir Oltean
2020-07-17 7:49 ` Jonathan McDowell
2020-07-17 20:29 ` Matthew Hagan
2020-07-17 20:39 ` Florian Fainelli
2020-07-17 20:48 ` John Crispin
2020-07-17 20:44 ` John Crispin
2020-07-18 13:20 ` Russell King - ARM Linux admin
2020-07-18 14:44 ` Andrew Lunn
2020-07-18 15:08 ` Russell King - ARM Linux admin
2020-07-18 15:34 ` Matthew Hagan
2020-07-16 22:19 ` Florian Fainelli
2020-07-16 22:09 ` [PATCH 1/2] net: dsa: qca8k: Add additional PORT0_PAD_CTRL options Jakub Kicinski
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