Hi Jeff, On Thursday 03 December 2009 07:21:56 Jeff Hane wrote: > I'm trying to get interrupts working for my PCI device on a 460ex and > am having problem. My ISR never triggers.
Which 460EX board is this? Canyonlands or some custom board? > I'm new to PCI(and ppc) and LDD said that I could read the config reg > INTURRUPT_LINE to get the interrupt assigned to my PCI device. Well, > this always reads zero. > > After reading through the code it appears that the interrupt is being > assigned after reading some information out of the device tree and then > filling in the irg in the pci_dev structure. Yes. The device tree has to describe the PCI interrupt layout. > I'm just looking for confirmation that I should be calling request_irq > with the irq that I found in the pci_dev struct. Yes. Canyonlands dts correctly describes the PCI interrupts assignments. If you have a custom 460EX board, then you probably have a different interrupt routed to the PCI slot. This needs to be described in your device tree file. Cheers, Stefan _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
