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@xxxxxxx> 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? Andrew