Re: LinuxBIOS and Vxworks

Kevin Hester <kevinh(a)ispiri.com> writes:

  Hi,
 
 It has been a couple of years since I was futzing with the ugly beast that is 
 vxWorks ;-).  However, I don't think the Intel BSPs are 'plug-and-play'.  
 I.e. vxWorks counts on the BIOS setting up the IRQ bindings for all PCI 
 devices.  
 
 It seems to me that most of the current linuxbios ROMs don't setup the PCI 
 IRQs - they rely on the fact that linux is able to use the pirq table and do 
 it's own PCI IRQ assignment.  If you are using vxWorks you may need to make 
 sure your mainboard.c is assigning IRQs to all PCI devices.  
 
 I just sent Andrew a patch which does this for the Via Epia motherboard.  
 After this is checked in you should search the source for pci_assign_irqs for 
 example usage.
Does this use the pirq tables or does it do something else?
As much as possible I would like to have a single source table so we
don't run into strange maintenance issues.

Assigning initial irqs, and reporting them in pci space is something
very much in the scope of LinuxBIOS.  It just hasn't come up much before
now so the code is not there yet...

Eric