Re: [PATCH]PCI on SWARM

[Ralf Baechle <ralf@linux-mips.org>]

On Mon, Oct 18, 2004 at 04:44:17AM -0400, Jes Sorensen wrote:

> Dual address cycles, ie. 64 bit addressing is fscked on the 1250 from
> what I remember. Correct way to work around this is to stick all
> physical memory outside the 32 bit space into ZONE_HIGHMEM - had a patch
> for 2.4, but I lost it ages ago ;-(

The Momentum Jaguar suffers from similar problems, so I've implemented
that for Linux 2.6 as CONFIG_LIMITED_DMA.

> One can just hope Broadcom will learn how to make chips some day ;-(

Well, they've just done their homework, also known as the 1450.  Pick
your red pen and give grades ;-)

  Ralf