yhlu.kernel@xxxxxxxxx wrote on 2012/07/11 00:09:00: > > On Tue, Jul 10, 2012 at 2:42 PM, Joakim Tjernlund > <joakim.tjernlund@xxxxxxxxxxxx> wrote: > > yhlu.kernel@xxxxxxxxx wrote on 2012/07/10 20:22:09: > > > >> > >> On Tue, Jul 10, 2012 at 10:29 AM, Joakim Tjernlund > >> <joakim.tjernlund@xxxxxxxxxxxx> wrote: > >> > > >> > I got an PCIe device that is woken up by user space, clocks needs to configured in various ways before the > >> > device enables its PCIe interface. > >> > > >> > The device is connected to a built in root bridge on a P2010(mpc85xx) CPU. > >> > To enable HP in Linux we need to apply some minor hacks. > >> > >> can you post lspci -vvxxx -s BB:DD:F of the two devices? > > > > Not really, this is an embedded device with limited SW. I got > > busybox and its lspci but that is very limited: > > # > ./busybox lspci -mk > > 00:00.0 "Class 0604" "1957" "0079" "0000" "0000" "pcieport" > > 01:00.0 "Class 0200" "14e4" "b540" "14e4" "b540" > > > > Does that tell you anything? > > No. Can you compile lspci util as static and run it ? That wasn't so hard so here: root@P2020RDB ~ # ./lspci -vvxxx 00:00.0 Class 0604: Device 1957:0079 (rev 21) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 32 bytes Region 0: Memory at <ignored> (32-bit, non-prefetchable) Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 00000000-00000fff Memory behind bridge: 80000000-9fffffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [4c] Express (v1) Root Port (Slot-), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE- FLReset- DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x4, ASPM L0s, Latency L0 <2us, L1 unlimited ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x2, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Kernel driver in use: pcieport 00: 57 19 79 00 06 01 10 00 21 00 20 0b 08 00 01 00 10: 00 00 f0 ff 00 00 00 00 00 01 01 00 00 00 00 00 20: 00 80 f0 9f f1 ff 01 00 00 00 00 00 00 00 00 00 30: 00 00 00 00 44 00 00 00 00 00 00 00 00 00 00 00 40: 00 00 00 00 01 4c 02 fe 00 00 00 00 10 00 41 00 50: 01 00 00 00 1f 28 00 00 41 d4 03 00 08 00 21 00 60: c0 07 00 00 c8 03 40 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01:00.0 Class 0200: Device 14e4:b540 (rev 02) Subsystem: Device 14e4:b540 Physical Slot: 0 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 16 Region 0: Memory at 80000000 (64-bit, non-prefetchable) [size=256K] Capabilities: [48] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=1 PME- Capabilities: [50] Vital Product Data pcilib: sysfs_read_vpd: read failed: Connection timed out Not readable Capabilities: [58] MSI: Enable- Count=1/1 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [ac] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 5GT/s, Width x2, ASPM L0s L1, Latency L0 <4us, L1 <4us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x2, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [100 v1] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [110 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [150 v1] Power Budgeting <?> Capabilities: [160 v1] Virtual Channel Caps: LPEVC=0 RefClk=100ns PATEntryBits=1 Arb: Fixed- WRR32- WRR64- WRR128- Ctrl: ArbSelect=Fixed Status: InProgress- VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff Status: NegoPending- InProgress- 00: e4 14 40 b5 06 00 10 00 02 00 00 02 08 00 00 00 10: 04 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 e4 14 40 b5 30: 00 00 00 00 48 00 00 00 00 00 00 00 00 01 00 00 40: 00 00 00 00 00 00 00 00 01 50 03 c8 08 20 00 00 50: 03 58 00 00 00 00 00 00 05 ac 80 00 00 00 00 00 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 11 00 00 00 00 00 00 00 00 00 00 00 10 00 02 00 b0: 02 80 3c 00 10 2c 10 00 22 6c 01 00 00 00 21 10 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 1f 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
