[coreboot] drivers/generic/ioapic enable_dev not called

[Alex G.]

Hi Rudolf,

You need to have the ioapic driver compiled in.

select DRIVERS_GENERIC_IOAPI

In your mainboard's Kconfig should do the trick.

Alex

On 08/17/2012 09:30 AM, Rudolf Marek wrote:
> Hi all,
> 
> I'm working on ioapic_irq support on M2V-MX SE. While at it, I wanted to
> factor out SB and NB ioapic initialization and use the generic ioapic
> driver. However I never see that code from drivers/generic/ioapic.c is
> called.
> 
> I tried various devicetree combinations, but nothing works. I'm out of
> ideas, possibly this has to do something that I do this on AMD system.
> 
> My first question is what is the difference between .enable and
> .enable_dev anyway?
> 
> I'm pasting here my "simple" devicetree.cb, the commented version does
> not work either and I get complains that it is left over static device
> and no PCI device.
> 
> I think in both cases I got IOAPIC: 09 missing read_resources
> And enable_dev is never called. I put there a printk.
> 
> Please can someone sched some light?
> 
> Thanks
> Rudolf
> 
> chip northbridge/amd/amdk8/root_complex         # Root complex
>   device lapic_cluster 0 on                     # APIC cluster
>     chip cpu/amd/socket_AM2                     # CPU
>       device lapic 0 on end                     # APIC
>     end
>   end
>   device pci_domain 0 on                        # PCI domain
>     subsystemid 0x1043 0 inherit
>     chip northbridge/amd/amdk8                  # mc0
>       device pci 18.0 on                        # Northbridge
>         # Devices on link 0, link 0 == LDT 0
> 
>         chip southbridge/via/k8t890             # "Southbridge" K8M890
> 
>           device pci 0.0 on end                 # HT
>           device pci 0.5 on
>                 chip drivers/generic/ioapic
>                     register "irq_on_fsb" = "1"
>                     register "base" = "0xfecc0000"
>                     device ioapic 9 on end
>                 end
>           end
> 
>         end #end NB chip
>       end #end LDT0
> 
>       device pci 18.0 on end #LDT1
>       device pci 18.0 on end #LDT2
> 
>       device pci 18.1 on end
>       device pci 18.2 on end
>       device pci 18.3 on end
>     end #mc0
> 
> #                chip drivers/generic/ioapic
> #                    register "irq_on_fsb" = "1"
> #                    register "base" = "0xfecc0000"
> #                    device ioapic 9 on end
> #                end
> 
>   end #pci_domain
> end #root complex
>