VGA Problem about 440bx chipset
rsmith at bitworks.com
Tue Sep 7 18:11:00 CEST 2004
ron minnich wrote:
> we'll put this on the list, though not quite this way (unless you want it
> in V1)
Well until myself or some other industrious soul ports the 440bx stuff
to V2 its not much use to me unless its V1.
It dosen't really matter to me how its implemented in V1. If you have
what you think is the "right" way then I'm game. And if someone will
guide me through what needs to be done in the PCI allocation stuff I'll
give it a whirl but at first blush that PCI allocation stuff appears
I guess the part I need help on would be the methodology of the ROM
expansion address assignment.
The actual copy seems pretty trivial.
- Scan for the id of the vga device.
- Get the rom address and enable the decode.
- set the shadowing.
- do the copy.
- disable writes to the shadow.
- disable the ROM decode.
More information about the coreboot