[U-Boot] Problem with transparent PCI-PCI bridge on Canyonlands

Felix Radensky
2009-12-15T07:30:26Z

Feng, Stefan

Can I do anything else to help you identify the problem ?

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
> ...
>
> Felix.
>
>> Feng Kan
>> AMCC Software
>>
>> -----Original Message-----
>> From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de]
>> On Behalf Of Felix Radensky
>> Sent: Wednesday, December 09, 2009 10:02 AM
>> To: u-boot at lists.denx.de; Stefan Roese
>> Subject: [U-Boot] Problem with transparent PCI-PCI bridge on Canyonlands
>>
>> Hi,
>>
>> I'm running latest u-boot on 1GHz Canyonlands board and have trouble
>> using 64-bit transparent PCI-PCI PLX 6254 bridge. With PLX evaluation
>> board plugged into Canyonlands PCI slot u-boot hangs. With PCI support
>> disabled u-boot works fine. The PLX board is OK, it was recognized by
>> both u-boot and kernel on Freescale MPC8536DS board. On Canyonlands
>> linux-2.6.32 silently resets the board when PLX is plugged in. Any ideas
>> what could be wrong in u-boot ? I'll post a separate question to
>> linuxppc-dev.
>>
>> U-Boot 2009.11-rc2-00002-g386118a (Dec 09 2009 - 18:48:44)
>>
>> CPU: AMCC PowerPC 460EX Rev. A at 1000 MHz (PLB=200 OPB=100 EBC=100)
>> Security/Kasumi support
>> Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
>> Internal PCI arbiter enabled
>> 32 kB I-Cache 32 kB D-Cache
>> Board: Canyonlands - AMCC PPC460EX Evaluation Board, 2*PCIe, Rev. 14
>> I2C: ready
>> DRAM: 512 MB (ECC not enabled, 400 MHz, CL3)
>> FLASH: 64 MB
>> NAND: 256 MiB
>> PCI: Bus Dev VenId DevId Class Int
>>
>>
>> Thanks a lot.
>>
>> Felix.
>>
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>>
>
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