On Wednesday 14 January 2009, Stefan Roese wrote: > On Wednesday 14 January 2009, vb wrote: > > thank you for confirming my suspicions and for your suggestion, I will > > compare notes with the Linux version (should have thought about this > > earlier). But I also was under impression that Linux does not touch > > some parts of PCI configuration, as the memory map is set by u-boot > > and used by Linux. Or does linux use the addresses from the device > > tree to reprogram the PCIe subsystem? > > Correct. Linux (re-)configures the 4xx PCI(e) controller completely. > Everything should be overwritten by Linux.
BTW: Do you see the same problems (PCIe memory read timeout) under Linux? If PCIe works on Glacier and fails on your custom board it may be a hardware related problem on your board (either board routing or endpoint etc). Are you sure that your FPGA based PCIe endpoint is working correctly? Can you "plug" a standard PCIe endpoint in your custom hardware? Best regards, 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: [email protected] ===================================================================== _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
