Re: [LinuxBIOS] new to LinuxBIOS (help for nova4899r)

[Luis Correia]

Hi!

On 9/23/06, yhlu  wrote:
> why acpi?

maybe i'm too used to fix things by turning ACPI on... but wait, that
is with windows...
> You may add some assign_irq in irq_table.c in MB dir. It will set the
> IRQ to Device pci conf space. Kernel driver then get irq from that.

but i must make sure the actual irq is wired to that device or else
things could go wrong
> YH

New subject, how about vga bios, is this GX1 fully supported now? i've
read some comments about it in the ml archives, but couldn't conclude
anything.

And the factory bios also has something called a VSA, it appears to be
some sort of firmware or driver. What is the best descriprion for this
peice of code in the bios?

Well, it is probably best for me to build one bios and then analise
the results...

Luis
> On 9/23/06, Luis Correia  wrote:
> > Hi!
> >
> > On 9/23/06, Stefan Reinauer  wrote:
> > > Luis Correia  [060923 10:20]:
> > > > There is no ACPI support.
> > >
> > > A spectre is haunting people coping with bios - the spectre of ACPI.
> > >
> > > In LinuxBIOS there _is_ ACPI support. But not enabled for all boards,
> > > because it is usually _not required_.
> > > > From what I've read, making ACPI tables is not easy...
> > > >
> > > > The board is industrial grade, and it can be found here:
> > > > http://www.icpamerica.com/products/single_board_computers/5_25_NOVA/NOVA-489...
> > >
> > > GX1 is basically supported.
> > > > if I don't specify a device in config.lb, Linux will still be able
> > >
> > > Depends :-) Some devices are not easily detectable or need
> > > initialization in LinuxBIOS. Those have to be specified.
> > > > about IRQ sharing, what is the best solution
> > >
> > > IRQ routing mainly depends on the wires on the motherboards. It may or
> > > may not be possible physically.
> >
> > Let's just say that if I have an additional eth card in the PCI slot,
> > with Redhat 9 if I get all the ethernet cards up and then it panics
> > complaining about IRQ's.
> >
> > Therefore I am assuming there are IRQ related issues :)
> > > Why do you want to share IRQs. In theory this impacts system performance
> > > quite significantly and is not required with today's APICs.
> > >
> > > Does the GX1 have an APIC?
> >
> > I have no idea, can't you tell that by looking at the lspci output?
> > > > is it possible to enable ACPI without having the tables from the
> > > >
> > > > factory bios
> > >
> > > Yes, definitely. We are not using any factory bios ACPI tables anywhere
> > > LinuxBIOS.
> > >
> > > There is no GX1 ACPI tables available in LinuxBIOS yet, so someone would
> > > have to write them. Not too hard, depending on what features you expect
> > > from ACPI.
> >
> > Well, I would just like it to work... This is a perfect hardware
> > platform for my router project
> > <pub>Bering uClibc http://www.leaf-project.org/bering-uclibc</pub>
> > > Stefan
> >
> > Luis