[U-Boot-Users] Question on PCI runtime add-ons to Open Firmware blob

[Kumar Gala]

On Jan 22, 2008, at 10:32 AM, L.Campora at Sirti.it wrote:

>
> Hi,
> I'm quite new to Open firmware, and I apologize if my question sound  
> silly or has been already answered.
>
> My system is PowerPC-based (8641D) and has a 2-level PCI tree with a  
> PCI-express switch in the middle, thus
> with many subordinate busses.
> Being it an embedded system, I was trying to write the complete DTS  
> for describing the structure for Linux to boot
> without having to patch the platform code.
>
> Before doing so, I was asking myself whether u-boot offers a runtime  
> mechanism for filling the blob with the complete snapshot
> of the PCI bus structure as discovered by u-boot code before passing  
> control to Linux.
> (at the moment I tftp a pre-compiled blob that I'm trying to adapt  
> starting from the MPC8641HPCN one, which in fact has no PCI-2-PCI
> bridges in the middle).

u-boot does not dynamically create PCI device tree nodes today.

- k