Hi, (Adding linux-mmc@.)
On Wed, Mar 30 2011, Manoj wrote: > The ricoh SD/MMC card reader [1180:e823] is able to read SD cards, I > recently submitted a patch to enable this card reader > (https://lkml.org/lkml/2011/2/11/309). > > But it is not able to mount MMC cards. > > When I insert an MMC card I get: > mmc0: error -110 whilst initialising MMC card > > I traced it down to ETIMEDOUT coming from sdhci_cmd_irq() can someone > give me a clue as to where I should start looking? The timeout's being raised by the controller, so it could simply be a bad card, or a controller that doesn't support MMC cards properly, or similar. You could start with: * turn on CONFIG_MMC_DEBUG and post output * see if sdhci.debug_quirks=1 helps If you have access to a scope, checking out the CMD line often hints at whether a problem is software or hardware. - Chris. > > ======= lspci -vvnn ============== > 0d:00.0 System peripheral [0880]: Ricoh Co Ltd Device [1180:e823] (rev > 05) (prog-if 01) > Subsystem: Lenovo Device [17aa:21ce] > 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: 64 bytes > Interrupt: pin A routed to IRQ 16 > Region 0: Memory at d1400000 (32-bit, non-prefetchable) [size=256] > Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+ > Address: 0000000000000000 Data: 0000 > Capabilities: [78] 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=2 PME+ > Capabilities: [80] Express (v1) Endpoint, MSI 00 > DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s > unlimited, L1 unlimited > 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 #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, > Latency L0 <4us, L1 <64us > ClockPM+ Surprise- LLActRep- BwNot- > LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- > CommClk+ > ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- > LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- > SlotClk+ DLActive- > BWMgmt- ABWMgmt- > Capabilities: [100 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- > Capabilities: [800 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: sdhci-pci > Kernel modules: sdhci-pci -- Chris Ball <c...@laptop.org> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
