port linuxbios(v1) to i845GV based MB

[zhu shi song]

intel i845GV is very popular now.  I've got P4i45GV MB
based on i845GV(northbridge:i845GV,
southbridge:82801db, superio: winfast w83627hf ). I
try to port linuxbios(v1) to this board.  Today I have
built my first romimage for it.  There met one problem
when using it to boot. Serial output is unreadable
code.  I have checked the baud rate it's ok.  Maybe
setup_serial has some bug.
tks
zhu

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[Stefan Reinauer]

* zhu shi song  [040908 14:44]:
> intel i845GV is very popular now.  I've got P4i45GV MB
> based on i845GV(northbridge:i845GV,
> southbridge:82801db, superio: winfast w83627hf ). I
> try to port linuxbios(v1) to this board.  Today I have
> built my first romimage for it.  There met one problem
> when using it to boot. Serial output is unreadable
> code.  I have checked the baud rate it's ok.  Maybe
> setup_serial has some bug.

Some mainboards need to do some magic for baud rate setting or otherwise
the actual baud rate is only half of what is specified. If you see
something at all you are almost there

Stefan

[ron minnich]

On Wed, 8 Sep 2004, Stefan Reinauer wrote:
> Some mainboards need to do some magic for baud rate setting or otherwise
> the actual baud rate is only half of what is specified. If you see
> something at all you are almost there

yes, mess around with the baud rate on your minicom or whatever and see 
if you're getting output at the wrong baud rate.

I just love PC chipsets ...

ron

[Steven James]

Greetings,

It looks like it can run double or half depending on the board unless
register 0x24 bit 6 is set correctly. 0=24MHz clock, 1=48MHz clock.

G'day,
sjames

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On Wed, 8 Sep 2004, Stefan Reinauer wrote:
> zhu shi song  [040908 14:44]:
> > intel i845GV is very popular now.  I've got P4i45GV MB
> > based on i845GV(northbridge:i845GV,
> > southbridge:82801db, superio: winfast w83627hf ). I
> > try to port linuxbios(v1) to this board.  Today I have
> > built my first romimage for it.  There met one problem
> > when using it to boot. Serial output is unreadable
> > code.  I have checked the baud rate it's ok.  Maybe
> > setup_serial has some bug.
>
> Some mainboards need to do some magic for baud rate setting or otherwise
> the actual baud rate is only half of what is specified. If you see
> something at all you are almost there
>
> Stefan
>
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