[LinuxBIOS] PCI-Bridge Problem - AMD Geode LX - PLX PCI6150

Steffen D. ml at saxnet.de
Thu Sep 20 08:57:39 CEST 2007


i'm running a db800 board with a geode lx 700. Linuxbios os working well 
expection ethernet and the pci bridge.

The bride chipset will be detected by lspci:
00:0e.0 PCI bridge: Hint Corp HiNT HB4 PCI-PCI Bridge (PCI6150) (rev 04)

Also the wireless card which is inserted into the pci-bride is detected 
by lspci.
When loading the driver for the wireles card the following message is 
showed in dmesg:
ath_pci: (
PCI: No IRQ known for interrupt pin A of device 0000:01:0f.0.
wifi%d: request_irq failed

When i use the normal bios which is shipped with the hardware - it works.

Lspci -vvv also says "Interrupt: pin A routed to IRQ 0" (for the wifi 
card). Seems that it is the problem but what can i do now?

More output from lspci -vvv (PCI2PCI-Bridge)
00:0e.0 PCI bridge: Hint Corp HiNT HB4 PCI-PCI Bridge (PCI6150) (rev 04) 
(prog-if 00 [Normal decode])
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
ParErr+ Stepping+ SERR+ FastB2B-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR+ <PERR+
        Latency: 64, Cache Line Size: 64 bytes
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
        I/O behind bridge: 0000f000-00000fff
        Memory behind bridge: fe000000-fe0fffff
        Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
        Secondary status: 66MHz+ FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- <SERR- <PERR-
        BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-
        Capabilities: [dc] Power Management version 1
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA 
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-
                Bridge: PM- B3+
        Capabilities: [e4] #06 [0094]
        Capabilities: [e8] Vital Product Data

... more output also for the wifi card:
01:0f.0 Ethernet controller: Atheros Communications, Inc. AR5212/AR5213 
Multiprotocol MAC/baseband processor (rev 01)
        Subsystem: Askey Computer Corp. Unknown device 7005
        Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- 
ParErr+ Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- 
<TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin A routed to IRQ 0
        Region 0: Memory at fe000000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: [44] Power Management version 2
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA 
                Status: D0 PME-Enable- DSel=0 DScale=2 PME-

Best regards,


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