SiS630 Software Watchdog Timer
Eric W. Biederman
ebiederman at lnxi.com
Mon Mar 17 21:29:00 CET 2003
Steve Gehlbach <steve at nexpath.com> writes:
> Ronald G. Minnich wrote:
> > On Mon, 17 Mar 2003, Steve Gehlbach wrote:
> >> Maybe it is related to running at 0xffff0000 instead of 0xf0000. Did we
> >> cached that region? The mtrr code is there but I have not checked through it
> >> to see what regions are cached.
> > I am almost certain we do not cache that region. That might be it.
> > ron
> How about using XIP_ROM_SIZE and XIP_ROM_BASE; seems to setup WP caching on
> variable MTRR 0x203 (mem type=5). Or does this have other effects; maybe use a
> different option with same code?
XIP is short for Execute in place. And that is exactly what it is designed for.
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