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.
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?