Hi guys,
I encountered a PCIe problem under linux, the two PCIe bus on my board seems
work, at least I can access the registers through the PCIe bus, however the dma
for the PCIe bus can't work, so I just dumped the pci device, but I am
curiously to find there is no regions displayed on PCIe controlers, why? is it
relate with my 'dma' issue then?
bash-2.04# cat /proc/pci
PCI devices found:
Bus 0, device 0, function 0:
Class 0b20 Header Type 01: PCI device 1957:0032 (rev 17).
Bus 1, device 0, function 0:
Class 0580 Header Type 00: PCI device 11ab:db90 (rev 1).
Prefetchable 64 bit memory at 0x80000000 [0x800fffff].
Prefetchable 64 bit memory at 0x84000000 [0x87ffffff].
Bus 9, device 0, function 0:
Class 0b20 Header Type 01: PCI device 1957:0032 (rev 17).
Bus 10, device 0, function 0:
Class 0580 Header Type 00: PCI device 11ab:db90 (rev 1).
Prefetchable 64 bit memory at 0xa0000000 [0xa00fffff].
Prefetchable 64 bit memory at 0xa4000000 [0xa7ffffff].
bash-2.04# lspci -vv
00:00.0 Power PC: Unknown device 1957:0032 (rev 11)
!!! Invalid class 0b20 for header type 01
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0, cache line size 08
Bus: primary=00, secondary=01, subordinate=06, sec-latency=0
I/O behind bridge: 00000000-00000fff
Memory behind bridge: 80000000-9fffffff
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [4c] #10 [0041]
01:00.0 Memory controller: Galileo Technology Ltd.: Unknown device db90 (rev 01)
Subsystem: Galileo Technology Ltd.: Unknown device 11ab
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0, cache line size 08
Interrupt: pin A routed to IRQ 0
Region 0: Memory at 80000000 (64-bit, prefetchable) [size=1M]
Region 2: Memory at 84000000 (64-bit, prefetchable) [size=64M]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [60] #10 [0011]
09:00.0 Power PC: Unknown device 1957:0032 (rev 11)
!!! Invalid class 0b20 for header type 01
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0, cache line size 08
Bus: primary=00, secondary=0a, subordinate=0f, sec-latency=0
I/O behind bridge: 00000000-00000fff
Memory behind bridge: a0000000-bfffffff
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [4c] #10 [0041]
0a:00.0 Memory controller: Galileo Technology Ltd.: Unknown device db90 (rev 01)
Subsystem: Galileo Technology Ltd.: Unknown device 11ab
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0, cache line size 08
Interrupt: pin A routed to IRQ 0
Region 0: Memory at a0000000 (64-bit, prefetchable) [size=1M]
Region 2: Memory at a4000000 (64-bit, prefetchable) [size=64M]
Capabilities: [40] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] Message Signalled Interrupts: 64bit+ Queue=0/0
Enable-
Address: 0000000000000000 Data: 0000
Capabilities: [60] #10 [0011]
bash-2.04#
Thanks
Denny
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
