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