[LinuxBIOS] Support for IEI Nova4899R [1]

ron minnich rminnich at gmail.com
Sun Nov 5 01:40:41 CET 2006

On 11/4/06, Luis Correia <lfcorreia at lfcorreia.dyndns.org> wrote:
> ---
> now for my questions:
> a) can the VGA rom be loaded as some sort of payload, and thus be
> automatically added during the build process, or the described
> procedure here http://www.linuxbios.org/VGA_support is still
> the best way ?

that's still the only way for now.

b) is there any way to tell where the IRQ pins for each PCI device
> are connected to the IRQ router chip?

schematics. Or a volt-ohm meter. In all too many cases, the IRQ table in the
fuctory bios is wrong. It can not be trusted.

c) i built an irq_tables.c using getpir, but it didn't actually
> helped much, as now i've got fewer devices working compared with
> the original bios :) (which i'm not that surprised at all)
> is getpir still the best method of detecting the original configuration?

I used to depend on getpir, until I found out how many bioses have the wrong
PIRQ table, and then I found that after 2.4.18 Linux is parsing the IRQ
tables incorrectly for cs5530, due to the fact that about half the GX1
tables in the world are wrong ... it is a terrible mess. So, getpir is only
as good as the tables in the fuctory bios, which nowadays means ... maybe it
will be good, but it is highly probable to have errors.

d) any other input you might give for help is welcome

nice work! how much did this board cost, and where do we get one?

Everyone, I think we can NOT delete the cs5530 support, or gx1 support in
general; we have a new motherboard!

Luis, can you do an svn diff and post a patch to the list; or use the


p.s. your english is better than most US high school students :-)
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.coreboot.org/pipermail/coreboot/attachments/20061104/4dbb7f69/attachment.html>

More information about the coreboot mailing list