netdev - Re: HW question: i210 vs. BCM5461S over SGMII: no response from PHY to MDIO requests?

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Date:   Sun, 18 Mar 2018 15:40:53 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Frantisek Rysanek <Frantisek.Rysanek@...t.cz>
Cc:     netdev@...r.kernel.org
Subject: Re: HW question: i210 vs. BCM5461S over SGMII: no response from PHY
 to MDIO requests?

> I'm not getting an ACK from the SFP, probably because I've got the 
> address and offset wrong and because I'd better use indirect access.
> There's some more work awaiting me...

Try address 0x50.

i2detect will probe all addresses for you, if you have a standard
Linux i2c bus.

      Andrew