From: Harini Katakam <harinik@xilinx.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Harini Katakam <harini.katakam@xilinx.com>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
David Miller <davem@davemloft.net>,
Claudiu Beznea <claudiu.beznea@microchip.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Michal Simek <michal.simek@xilinx.com>,
devicetree@vger.kernel.org
Subject: Re: [RFC PATCH 1/2] dt-bindings: net: macb: Add new property for PS SGMII only
Date: Mon, 5 Aug 2019 20:06:51 +0530 [thread overview]
Message-ID: <CAFcVECLUNYRC-iZbKvvq2_XMLfXg7E10yAU5J_8GaEB3ExWRxg@mail.gmail.com> (raw)
In-Reply-To: <20190805132045.GC24275@lunn.ch>
Hi Andrew,
On Mon, Aug 5, 2019 at 7:00 PM Andrew Lunn <andrew@lunn.ch> wrote:
>
> On Mon, Aug 05, 2019 at 11:45:05AM +0530, Harini Katakam wrote:
> > Hi Andrew,
> >
> > On Sun, Aug 4, 2019 at 8:26 PM Andrew Lunn <andrew@lunn.ch> wrote:
> > >
> > > On Wed, Jul 31, 2019 at 03:10:32PM +0530, Harini Katakam wrote:
> > > > Add a new property to indicate when PS SGMII is used with NO
> > > > external PHY on board.
> > >
> > > Hi Harini
> > >
> > > What exactly is you use case? Are you connecting to a Ethernet switch?
> > > To an SFP cage with a copper module?
> >
> > Yes, an SFP cage is the common HW target for this patch.
>
> Hi Harini
>
> So you have a copper PHY in the SFP cage. It will talk SGMII
> signalling to your PS SGMII. When that signalling is complete i would
> expect the MAC to raise an interrupt, just as if the SGMII PHY was
> soldered on the board. So i don't see why you need this polling?
>
Thanks. Sorry, I overlooked this interrupt. Let me try that.
Regards,
Harini
next prev parent reply other threads:[~2019-08-05 14:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-31 9:40 [RFC PATCH 0/2] Macb SGMII status poll thread Harini Katakam
2019-07-31 9:40 ` [RFC PATCH 1/2] dt-bindings: net: macb: Add new property for PS SGMII only Harini Katakam
2019-08-04 14:56 ` Andrew Lunn
2019-08-05 6:15 ` Harini Katakam
2019-08-05 13:20 ` Andrew Lunn
2019-08-05 14:36 ` Harini Katakam [this message]
[not found] ` <CAFcVECLVHY5X=wctxVqRqDTDyG7Zavkt5ui4RtFBLP8g8MW1SA@mail.gmail.com>
2019-08-05 17:16 ` Andrew Lunn
2019-08-06 5:47 ` Harini Katakam
2019-07-31 9:40 ` [RFC PATCH 2/2] net: macb: Add SGMII poll thread Harini Katakam
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