[PATCH 0/3] powerpc/fsl: PCI refactoring and QEMU paravirt platform

[Zang Roy-R61911]

> -----Original Message-----
> From: Linuxppc-dev [mailto:linuxppc-dev-bounces+tie-
> fei.zang=freescale.com at lists.ozlabs.org] On Behalf Of Kumar Gala
> Sent: Friday, June 29, 2012 23:58 PM
> To: Jia Hongtao-B38951
> Cc: Wood Scott-B07421; linuxppc-dev at lists.ozlabs.org; Li Yang-R58472;
> agraf at suse.de
> Subject: Re: [PATCH 0/3] powerpc/fsl: PCI refactoring and QEMU paravirt
> platform
> 
> 
> On Jun 28, 2012, at 9:36 PM, Jia Hongtao-B38951 wrote:
> 
> >
> >
> >> -----Original Message-----
> >> From: Wood Scott-B07421
> >> Sent: Friday, June 29, 2012 12:31 AM
> >> To: Jia Hongtao-B38951
> >> Cc: Wood Scott-B07421; galak at kernel.crashing.org; Li Yang-R58472;
> >> agraf at suse.de; linuxppc-dev at lists.ozlabs.org
> >> Subject: Re: [PATCH 0/3] powerpc/fsl: PCI refactoring and QEMU paravirt
> >> platform
> >>
> >> On 06/27/2012 11:06 PM, Jia Hongtao-B38951 wrote:
> >>>
> >>>
> >>>> -----Original Message-----
> >>>> From: Wood Scott-B07421
> >>>> Sent: Thursday, June 28, 2012 7:49 AM
> >>>> To: galak at kernel.crashing.org
> >>>> Cc: agraf at suse.de; linuxppc-dev at lists.ozlabs.org; Jia Hongtao-B38951
> >>>> Subject: [PATCH 0/3] powerpc/fsl: PCI refactoring and QEMU paravirt
> >>>> platform
> >>>>
> >>>> The QEMU stuff is related to the PCI refactoring because currently
> >>>> we have a hard time selecting a primary bus under QEMU, and also
> >> because
> >>>> the generic qemu e500 platform wants a full list of FSL PCI
> >> compatibles
> >>>> to check.
> >>>>
> >>>
> >>> It seems that not all primary bus has "isa" node like 8541 and 8555.
> >>
> >> Do those boards (it's the boards that matter, not chips...) have legacy
> >> ISA?  If they do, and it's not in the device tree, then we should fix
> >> the device tree for consistency, but also retain some sort of hack to
> >> remain compatible with old device trees.
> >>
> >> A board can refrain from using the new common infrastructure if it has a
> >> good reason to.
> >
> > I'm not sure that MPC8541CDS (or 8555) has legacy ISA. I just checked in
> > kernel and dts which implies the board has primary bus and no "isa" node.
> > I will find out the facts later.
> 
> Pretty sure the boards have ISA, if you see the .dts has references to 'ISA
> bridge' & 'i8259' PIC.
It is on the VIA south bridge.
Roy