[LinuxBIOS] new to LinuxBIOS (help for nova4899r)
yinghailu at gmail.com
Sat Sep 23 18:43:57 CEST 2006
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.
On 9/23/06, Luis Correia <luis.f.correia at gmail.com> wrote:
> On 9/23/06, Stefan Reinauer <stepan at coresystems.de> wrote:
> > * Luis Correia <luis.f.correia at gmail.com> [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-4899.html
> > GX1 is basically supported.
> > > 1) 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.
> > > 2) 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?
> > > 3) 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
> > --
> > coresystems GmbH • Brahmsstr. 16 • D-79104 Freiburg i. Br.
> > Tel.: +49 761 7668825 • Fax: +49 761 7664613
> > Email: info at coresystems.de • http://www.coresystems.de/
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