netdev - Re: DSA: phy polling

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Message-ID: <87y4g8xke1.fsf@dell.be.48ers.dk>
Date:	Tue, 15 Sep 2015 08:32:38 +0200
From:	Peter Korsgaard <peter@...sgaard.com>
To:	Florian Fainelli <f.fainelli@...il.com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: DSA: phy polling

>>>>> "Florian" == Florian Fainelli <f.fainelli@...il.com> writes:

Hi,

 >> Does the Marvell phy have such a register?  Looking at the register
 >> dump and plugging/unplugging cables seems not to show a register
 >> reporting whether any particular interface has changed state, and
 >> I haven't noticed there being any combined register in anything I've
 >> seen on these switches.

 > It seemed to me like the PPU was meant to provide that, but I cannot
 > find any "summary" register which would give you such a status, must
 > have conflated that with what Broadcom switches support.

It's been some years, but I think the PPU was just to automatically
configure the switch MACs to to match the phy autonegotiation results.

I also don't see any summery register though.

-- 
Bye, Peter Korsgaard
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