Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 25 Mar 2003 16:31:18 -0700 | From | Deepak Saxena <> | Subject | Re: [PATCH 2.5] Make root PCI bus child of system_bus in device tree |
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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
-- Deepak Saxena MontaVista Software - Powering the Embedded Revolution - www.mvista.com
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