[PATCH 5/5] arm: dts: Convert mvebu device tree files to 64 bits

[Jason Gunthorpe]

On Thu, Mar 21, 2013 at 11:35:21PM +0200, Lior Amsalem wrote:

> >  *) It would require Linux to change the internal registers address
> >     (for now the kernel relies on the bootloader). The problem is that
> >     we can't do it early enough to preserve the earlyprintk
> >     functionality. Maybe you have suggestions on how to achieve that?
> 
> Please note that all registers and IOs are still 32bit, the 40bit
> extension is on the CPU to DRAM path (windows) only.

Ah, I did wonder, since Ezequiel's MBUS driver was the same as on
prior families. I guess it is also the case that all on board DMA and
DMA from PCI-E devices are restricted to the low 32 bits as well?

I think lots of Linux workloads will really struggle under those
conditions..

Jason