Re: [net-next 1/2] net: ethernet: slicoss: add slicoss gigabit ethernet driver

On 16.11.2016 00:03, Andrew Lunn wrote:

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+  			val = MII_BMCR << 16 | SLIC_PCR_AUTONEG |
+		     	         SLIC_PCR_AUTONEG_RST;
+			slic_write(sdev, SLIC_REG_WPHY, val);

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Thats essentially what I meant by setting a flag in the irq handler. The mdio
function would have to check somehow if the irq has been fired (be it by means
of a flag or a completion that is set by the irq handler and checked by the 
mdio function). So I agree that it should work (if reading via the AP command
is actually possible).

It seems odd you have a nice simple way to do writes, but reads are
very complex. There might be a simple read method hiding somewhere.

     Andrew

I agree, it IS odd :). 
But concerning reading the phy this is all I can see in the original source code:

http://lxr.free-electrons.com/source/drivers/staging/slicoss/slichw.h#L516

I strongly suspect that "RPHY" stand for "read phy". The only one who may
know for sure if there is another/better way is Christopher Harrer. He is also on CC
but I am not sure if he actually follows this discussion.

Lino