Re: [coreboot] IRQ 9 on s2895 and s2892

[Rudolf Marek]

> I tried setting it to pin2.  It reboots when it jumps to the payload.

hm OK. Perhaps it is really pin0. It could be found out from kernel.

Just put some printk to print ioapic_i8259.pin right after label found_i8259 in 
io_apic.c

If it is 0, then your coreboot mptable should be fixed.

Rudolf

IRQ 9 on s2895 and s2892

[Myles Watson]

On Mon, Mar 16, 2009 at 3:27 PM, Rudolf Marek  wrote:
> > I tried setting it to pin2.  It reboots when it jumps to the payload.

Sorry.  This was the -fomit-frame-pointer error.  It just happened to
be the time I did make clean.

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.

IRQ 9 wasn't being set up correctly in the southbridge.  I set a
nibble to 9 and now it works.

Next I'll try XP again.

Thanks,
Myles

IRQ 9 on s2895 and s2892

[Rudolf Marek]

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????
> 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?

So far so good,
Rudolf

IRQ 9 on s2895 and s2892

[Myles Watson]

On Wed, Mar 18, 2009 at 5:19 PM, Rudolf Marek  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 :)

Thanks,
Myles

IRQ 9 on s2895 and s2892

[Rudolf Marek]

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

aha you mean normal shutdown? Or?

Rudolf

IRQ 9 on s2895 and s2892

[Myles Watson]

On Thu, Mar 19, 2009 at 3:00 PM, Rudolf Marek  wrote:
> > It is 0 initially, but when I press the power button it powers off :)
>
> aha you mean normal shutdown? Or?

No.  It powers off immediately.  I assume that the soft power feature
wasn't enabled.

Thanks,
Myles

IRQ 9 on s2895 and s2892

[Rudolf Marek]

> No.  It powers off immediately.  I assume that the soft power feature
> wasn't enabled.

Hmm this is bad. Something else does not work. It should generate ACPI event 
through IRQ9. And OS shall do the off.

Did you hold the power button for 4 seconds?

Rudolf