[PATCH 2/8] Add uli1575 pci-bridge sector to MPC8641HPCN dts file.

Zang Roy-r61911 tie-fei.zang at freescale.com
Tue Jun 5 16:05:29 EST 2007


> 
> >> Yes, I think we all agree -- it should be interrupt-controller at 20,
> >> with 20, a0, 4d0 in the "reg" property.
> >
> > In the current tree it is called "i8259" in mpc8641_hpcn.dts.
> 
> "interrupt-controller" is the preferred name for all
> interrupt controller nodes.  The "compatible" property
> can easily distinguish between different types.  Not
> that it matters all that much -- just remember that
> the "name" is used for device matching before "compatible"
> is (_should_ be, Linux ignores this part of the standard
> right now in most cases), so don't put junk in there!
> 
> > The other
> > ones which have a 8259 are not usable (mpc8555 for example). I don't
> > even understand their reg property (19000 0 0 0 1),
> 
> Very weird indeed.  What bustype is this?  (I looked it up,
> it's PCI, and I can't make heads or tails of it either --
> it says it sits on bus #1, although its parent isn't bus #1;
> and the final "1" should be "0".  Many more weird things
> in that node, too).
This 8259 controller in a VIA82C686 chip is behind a tsi310 bridge  on
pci1.
Bus #1 should correct.
It is not enabled in 8555CDS board.
Roy



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