On Wed, Sep 26, 2012 at 4:14 AM, 王思源 <[email protected]> wrote: > it seems that the pci devices are scanned two rounds in our mainboard. > first round: bus 0 -> bridge 00:14.4 -> bus 1 (this is the vga device > under the bridge 00:14.4) > second round: bus 0 -> bridge 00:02.0 -> bridge 00:04.0 -> bridge > 00:05.0. this bridges are all pcie bridges. > > I want to know whether the two rounds scanning style is right. if it > is designed to scan two rounds, why? > any reply is helpful to me. > thank you! > Yes, there are multiple steps in device tress and pci resource discovery and allocation.
> WANG Siyuan > > -- > coreboot mailing list: [email protected] > http://www.coreboot.org/mailman/listinfo/coreboot -- http://se-eng.com -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
