[coreboot] IRQ 9 on s2895 and s2892

Myles Watson mylesgw at gmail.com
Thu Mar 19 21:43:21 CET 2009

On Wed, Mar 18, 2009 at 5:19 PM, Rudolf Marek <r.marek at assembler.cz> wrote:
> Hi,
>> I just tried it again and I no longer get
>>  spurious 8259A interrupt: IRQ7.
>> That seems like a good thing.  Interestingly enough, the factory BIOS
>> has the spurious interrupt too.
> OK cool.
>> IRQ 9 wasn't being set up correctly in the southbridge.  I set a
>> nibble to 9 and now it works.
> Huh what register please????
Register 0x80 lowest nibble.

>> Next I'll try XP again.
> So now the ACPI based IRQ routing works and IRQ9 is 0 initially? Is it
> increased when you press the power button?

It is 0 initially, but when I press the power button it powers off :)


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