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).
Thanks in advance!
regards,
luigi
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Luigi Campora
Sirti S.p.A.
TR-SS - R&D Sistemi di Segnalamento
Via Bombrini, 11/4
16149 Genova
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cell: +39 335 7470015
Web: www.sirti.it
email: L.Campora@sirti.it
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