[U-Boot] [PATCH] vexpress64: Juno: Change PCI buss addresses for IO to start from zero.

[Liviu Dudau]

On Tue, Nov 22, 2016 at 11:29:20AM +0000, Sudeep Holla wrote:
> Hi Liviu,
> 
> On Tue, Nov 22, 2016 at 11:19 AM, Liviu Dudau <Liviu.Dudau at foss.arm.com> wrote:
> > Juno uses a 1:1 mapping between CPU and PCI addresses for IO. First,
> > that will trip devices that cannot use more than 16 bits of addresses
> > for IO, second it is un-necessary as the system can handle zero-based
> > PCI addresses just fine.
> >
> > Change the mapping to start IO bus addresses from zero.
> >
> 
> I assume this require corresponding DT change, shout if that's not true.
> If that's true, then does this patch not require patching of DT so
> that systems not
> running Uboot with this patch continue to work and we retain the
> mainline DT as is ?

Yes, it does require DT changes, Jeremy Linton has a patch 

> 
> --
> Regards,
> Sudeep

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