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    SubjectRe: [PATCH 2.5] Make root PCI bus child of system_bus in device tree
    On Mar 26 2003, at 00:35, Alan Cox was caught saying:
    > On Tue, 2003-03-25 at 23:16, Deepak Saxena wrote:
    > > All,
    > >
    > > The following patch updates the PCI subsystem so that root PCI host
    > > bridges appear as devices hanging off the system bus instead of root
    > This seems odd for some systems we support. Older PARISC for example
    > have PCI busses hanging off gecko. I do agree with you for the general
    > case. So systems whose root level bridges are 'normal' should reflect
    > this and I guess others should attach them to the relevant bus.
    > Over time it seems that PCI is going to become a secondary bus like
    > ISA did as well. In fact it already has in many ways, its just things
    > like VLINK and the Intel hub busses look like PCI to us

    Sounds like more reasoning to just force the caller to provide a parent.
    'normal' is a moving target and I'd rather not have the code making
    assumptions and let the platform's kernel developer explictly map
    the PCI bridge into the system.


    Deepak Saxena
    MontaVista Software - Powering the Embedded Revolution -

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