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Date: Thu, 30 Apr 2020 22:56:51 +0200 From: Andrew Lunn <andrew@...n.ch> To: Michael Walle <michael@...le.cc> Cc: Florian Fainelli <f.fainelli@...il.com>, cphealy@...il.com, davem@...emloft.net, hkallweit1@...il.com, mkubecek@...e.cz, netdev@...r.kernel.org Subject: Re: [PATCH net-next v1 0/9] Ethernet Cable test support On Thu, Apr 30, 2020 at 10:01:55PM +0200, Michael Walle wrote: > Oh so, the time delta counter of the Marvell PHY also runs at 125MHz? ;) No idea. But 125MHz is one of the fundamental clocks rates in Ethernet, so it make sense to reuse it. > /* Accoring to the datasheet the distance to the fault is > * DELTA_TIME * 0.824 meters. A calculation like that pops up in my second set of patches where i add raw TDR data access. Andrew
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