Re: [patch 3/6] Add 8548 CDS PCI express controller node and PCI-X device node

[Zang Roy-r61911 <tie-fei.zang@freescale.com>]

On Wed, 2007-07-11 at 04:25, Segher Boessenkool wrote:
> >               pci1: pci@8000 {
> >                       interrupt-map-mask = <1f800 0 0 7>;
> 
> Set the mask to <1800 0 0 7>, and you need only 16
> entries to encode the swizzle.  Except...
> 
> > +                             /* bus 1 , idsel 0x2 Tsi310 bridge
> secondary */
> 
> ...interrupts on bus 1 should be swizzled on bus 1, not
> at the PHB.  Really.  It is a horrible workaround for a
> non-existing problem to do it here, and I promise you
> it _will_ come back to hurt you later.  Not a threat,
> just a promise :-)

I just want to make it as a temporary workaround now.
Extra patches will be provided to fix it.


> > -                     compatible = "85xx";
> > +                     compatible = "fsl,mpc85xx-pci","85xx";
> 
> No more "xx" please...
> 
> > +             pci@a000 {
> > +                     interrupt-map-mask = <f800 0 0 7>;
> > +                     interrupt-map = <
> > +
> > +                             /* IDSEL 0x0 (PEX) */
> > +                             00000 0 0 1 &mpic 0 1
> > +                             00000 0 0 2 &mpic 1 0
> > +                             00000 0 0 3 &mpic 2 0
> > +                             00000 0 0 4 &mpic 3 0>;
> 
> Why sense 0 for all but the first entry in this map?
Now, only the first entry is used.
> 
> > +                     compatible = "fsl,mpc86xx-pciex","86xx";
> 
> And "xx" again.  Aren't the 85- and 86- PCIe controllers
> compatible, btw?