On Wed, 01 Aug 2007 18:22:36 +0400 Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx> wrote: > Segher Boessenkool wrote: > > >> setup-pci is for SFF8038i devices. It therefore knows that for assigned > >> resources they must be I/O. It also assumes that zero is not a valid I/O > >> port just like zero is not a valid IRQ. Stick a real IDE resource at > >> zero and drivers/ide can't cope. > > > But 0 _is_ a valid PCI I/O address. Do we now have to start > > I wasn't in PCI 2.1 (later the corresponding passage have disppeared). SFF controllers often use 0 to indicate a channel isn't configured and present. Libata and old IDE both assume these semantics for an SFF IDE device reporting address zero. It matches the hardware behaviour. I would suggest you don't map one at I/O zero on your PCI. Alan - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
