[PATCH 1/4 v2] powerpc: document max-speed and interface-type properties

Kim Phillips kim.phillips at freescale.com
Tue Apr 17 01:25:33 EST 2007


On Fri, 13 Apr 2007 21:02:25 +0200
Segher Boessenkool <segher at kernel.crashing.org> wrote:

> > Since ucc_geth is being migrated to use the phylib, the existing
> > (undocumented) 'interface' property is being deprecated in favour
> > of unconjoined variations 'max-speed' and 'interface-type'.
> 
> Again, please explain why this information shouldn't
> be in the PHY node instead?
> 

Strictly speaking, it should be neither in the UCC node nor the PHY
node, as it describes the connection between the two, but..

the UCC driver utilizes the data itself; the UCC, unlike other network
controllers, does not provide interface data in its programming model.

the phy drivers are not of_ drivers.  Porting phylib drivers to be of_
drivers would break phylib for non-OF arches, e.g. x86.

Kim



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