From: simon-wM4F9T/ekXmXDw4h08c5KA@public.gmane.org
To: Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: Poulsbo I2C - /dev/i2c not seen when loading i2c-dev
Date: Tue, 5 Apr 2011 13:05:02 -0400 [thread overview]
Message-ID: <b9ff3e86cbf2aa2c34f614adf80e7ffb.squirrel@host171.canaca.com> (raw)
In-Reply-To: <20110401121027.49ce012b-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
>> The board is built around the Poulsbo and therefore using the 'i2c-isch'
>> driver.
>
> Check for error messages when you load the i2c-isch driver. Note that
> in kernel 2.6.34 the structure of the i2c-isch driver was changed, from
> a standalone PCI driver to a MFD driver. Please make sure that you have
> CONFIG_LPC_SCH installed and driver lpc_sch loaded, otherwise i2c-isch
> will never see the platform device it is looking for.
Thanks for the suggestion, unfortunately there is an issue with lpc_sch
loading, and error is reported via dmesg.
--
[ 403.809826] ACPI: resource (null) [io 0x0480-0x04bf] conflicts with
ACPI region PHO_ [io 0x4bc-0x4bc]
[ 403.809834] ACPI: If an ACPI driver is available for this device, you
should use it instead of the native driver
[ 403.809921] lpc_sch: probe of 0000:00:1f.0 failed with error -16
--
34 rmmod i2c_isch
35 rmmod lpc_sch
36 rmmod i2c_gpio
37 tree /sys/bus/i2c/
38 modprobe i2c_isch
39 modprobe i2c_gpio
40 modprobe lpc_sch
41 dmesg | tail
--
Any further suggestions would be much appreciated. The system reports the
poulsbo under 'lspci' as:
--
00:1b.0 Audio device: Intel Corporation System Controller Hub (SCH
Poulsbo) HD Audio Controller (rev 07)
Subsystem: Intel Corporation Device 8119
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 dff5c000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] 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: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
DevCap: MaxPayload 128 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 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0
<64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM L0s Enabled; Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed unknown, Width x0, 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=01
Status: NegoPending- InProgress-
VC1: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable- ID=0 ArbSelect=Fixed TC/VC=00
Status: NegoPending- InProgress-
Capabilities: [130 v1] Root Complex Link
Desc: PortNumber=0f ComponentID=00 EltType=Config
Link0: Desc: TargetPort=00 TargetComponent=00 AssocRCRB-
LinkType=MemMapped LinkValid+
Addr: 00000000f0000000
Kernel driver in use: HDA Intel
00:1c.0 PCI bridge: Intel Corporation System Controller Hub (SCH Poulsbo)
PCI Express Port 1 (rev 07) (prog-if 00 [Normal decode])
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
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00001000-00001fff
Memory behind bridge: cfd00000-cfdfffff
Prefetchable memory behind bridge: 80000000-801fffff
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: [40] Express (v1) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1
unlimited
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0
<256ns, 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 x1, TrErr- Train- SlotClk+ DLActive+
BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
Slot #0, PowerLimit 0.000W; Interlock- NoCompl-
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet+ LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
Capabilities: [90] Subsystem: Intel Corporation Device 8119
Capabilities: [a0] 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-
Kernel driver in use: pcieport
00:1d.0 USB Controller: Intel Corporation System Controller Hub (SCH
Poulsbo) USB UHCI #1 (rev 07) (prog-if 00 [UHCI])
Subsystem: Intel Corporation Device 8119
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
Interrupt: pin A routed to IRQ 20
Region 4: I/O ports at e480 [size=32]
Kernel driver in use: uhci_hcd
00:1d.1 USB Controller: Intel Corporation System Controller Hub (SCH
Poulsbo) USB UHCI #2 (rev 07) (prog-if 00 [UHCI])
Subsystem: Intel Corporation Device 8119
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
Interrupt: pin B routed to IRQ 21
Region 4: I/O ports at e080 [size=32]
Kernel driver in use: uhci_hcd
00:1d.2 USB Controller: Intel Corporation System Controller Hub (SCH
Poulsbo) USB UHCI #3 (rev 07) (prog-if 00 [UHCI])
Subsystem: Intel Corporation Device 8119
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
Interrupt: pin C routed to IRQ 22
Region 4: I/O ports at ef00 [size=32]
Kernel driver in use: uhci_hcd
00:1d.7 USB Controller: Intel Corporation System Controller Hub (SCH
Poulsbo) USB EHCI #1 (rev 07) (prog-if 20 [EHCI])
Subsystem: Intel Corporation Device 8119
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
Interrupt: pin D routed to IRQ 23
Region 0: Memory at dff5bc00 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port: BAR=1 offset=00a0
Kernel driver in use: ehci_hcd
00:1f.0 ISA bridge: Intel Corporation System Controller Hub (SCH Poulsbo)
LPC Bridge (rev 07)
Subsystem: Intel Corporation System Controller Hub (SCH Poulsbo) LPC Bridge
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-
00:1f.1 IDE interface: Intel Corporation System Controller Hub (SCH
Poulsbo) IDE Controller (rev 07) (prog-if 80 [Master])
Subsystem: Intel Corporation Device 8119
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
Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
Region 4: I/O ports at ffa0 [size=16]
Kernel driver in use: pata_sch
--
>> Reviewing the schematic I see that there are several buses, each going
>> to
>> individual components:
>> IT8516 U5/110+111 -> LTC1760 U6/18+22 [battery charger – 0x1A/0x12]
>> IT8516 U5/115+116 -> W83L771 U60/8+7 [thermal sensor – 0x18??]
>> IT8516 U5/117+118 -> LSM303DLH U64/19+20 [accel/compass – 0x19]
>> POULSBO U2/G37+H38 -> PCI Express Socket
>
> This suggests that the board uses the SMBus controllers in the ITE IT8516
> Super-I/O chip rather than the Intel SCH south bridge. Unfortunately we
> have no support for the SMBus controllers of the IT8516, and I doubt we
> get support anytime soon as I was unable to find a datasheet for the
> ITE IT8516.
>
I believe that Jean is correct, we have exchanged a few emails regarding
the IT8516 SuperIO chip and have some ideas about getting some support.
Simon.
next prev parent reply other threads:[~2011-04-05 17:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-31 22:07 Poulsbo I2C - /dev/i2c not seen when loading i2c-dev simon-wM4F9T/ekXmXDw4h08c5KA
[not found] ` <fb407773c6a76f3ffef06ff357df2118.squirrel-N82HvsEaY4mscnXkh+DeetBPR1lH4CV8@public.gmane.org>
2011-04-01 10:10 ` Jean Delvare
[not found] ` <20110401121027.49ce012b-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
2011-04-05 17:05 ` simon-wM4F9T/ekXmXDw4h08c5KA [this message]
[not found] ` <b9ff3e86cbf2aa2c34f614adf80e7ffb.squirrel-N82HvsEaY4mscnXkh+DeetBPR1lH4CV8@public.gmane.org>
2011-04-05 20:34 ` simon-wM4F9T/ekXmXDw4h08c5KA
[not found] ` <22a6003c213a91452d2a7312e4e5ad32.squirrel-N82HvsEaY4mscnXkh+DeetBPR1lH4CV8@public.gmane.org>
2011-04-06 17:20 ` Jean Delvare
[not found] ` <20110406192059.369c3143-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
2011-04-08 20:11 ` simon-wM4F9T/ekXmXDw4h08c5KA
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