From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Tue, 15 Dec 2009 10:10:20 +0100 Subject: [U-Boot] Problem with transparent PCI-PCI bridge on Canyonlands In-Reply-To: <4B273B12.1030608@embedded-sol.com> References: <4B1FE62C.7080407@embedded-sol.com> <4B216F9D.3050009@embedded-sol.com> <4B273B12.1030608@embedded-sol.com> Message-ID: <200912151010.20098.sr@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Felix, On Tuesday 15 December 2009 08:30:26 Felix Radensky wrote: > Can I do anything else to help you identify the problem ? Do you have other PPC4xx boards, in which you could test this PCI-PCI bridge board? Some other comments below. > Thanks. > > Felix. > > Felix Radensky wrote: > > Hi, > > > > Feng Kan wrote: > >> Can you turn on the additional debug information. That will give a > >> better > >> Clue as to what part is hanging. > > > > I've enabled debugging in drivers/pci/pci.c. I'm seeing an infinite flow > > of messages > > > > PCI: Bus Dev VenId DevId Class Int > > PCI Scan: Found Bus 0, Device 6, Function 0 > > PCI Scan: Found Bus 1, Device 6, Function 0 > > ... > > PCI Scan: Found Bus 255, Device 6, Function 0 > > PCI Scan: Found Bus 0, Device 6, Function 0 > > PCI Scan: Found Bus 1, Device 6, Function 0 > > ... Strange to see an infinite loop here. I suggest you debug, why pci_hose_scan_bus() is called endlessly. Hard to guess without access to such a board. Cheers, Stefan -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office at denx.de