[LinuxBIOS] Geode GX1 system IRQ handling

Jonathan Sturges jsturges at speakeasy.net
Wed Aug 16 14:59:26 CEST 2006

Juergen Beisert wrote:

>Hi Jonathan,
>please use plain text, no HTML....
>On Wednesday 16 August 2006 13:58, Jonathan Sturges wrote:
>>PCI: No IRQ known for interrupt pin A of device 00:13.0. Please try
>>using pci=biosirq.
>>usb-ohci.c: found OHCI device with no IRQ assigned. check BIOS
>>...which basically means the entries for these devices in the IRQ map
>>are either wrong, or missing.  What's needed now is a way to determine
>>those interrupts, and put them in the map.  Did you have to go through
>>a similar process on your board, and if so, can you detail what you
>Yes, similar to my experience. I tried (no chance to read back any values due 
>to WinCE-Bootloader instead of BIOS) with this irq map and it works.
>Source attached.

Thanks for the irq_tables.c file; I'll compare it to what I've got and 
merge in the changes.

Sorry if that last mail came out HTML; I don't intentionally compose it 
that way, and apparently Thunderbird's autodetect got confused.



More information about the coreboot mailing list