Imx8m plus pci interface

vidalrjm — Tue, 15 Feb 2022 18:49:43 GMT

Hello,

I have 2 SBC boards with i.MX8M Plus

Compulab board.
https://www.compulab.com/webshop/products/eval-sbciotimx8/

Advantech board.
https://www.advantech.com/products/single_board_computer/rsb-3720/mod_d2f1b0bc-650b-449a-8ef7-b65ce4f69949

For the Advantech board I use an interface board to convert M.2 to mini PCIe interface.
https://www.delock.de/produkte/G_62848/merkmale.html?setLanguage=en

Also I have 2 mini PCIe boards with CAN bus interface.
KVASER
https://www.kvaser.com/product/kvaser-mini-pci-express-hs-v2/

PEAK
https://www.peak-system.com/PCAN-miniPCIe-FD.464.0.html?&L=1

In both SBC when I execute lspcie -vv from a Linux shell the uProcedor detects the miniPCIe boards as you can see below.

Driver from KVASER and from PEAK seems to be that compile well with make and make install.

So, do you know why the CAN interface do not appear when I execute ip a command in Linux shell???

I was thinking that the problem into the uProcesor...

Please, do not hesitate to contact me if you need more information.

Thanks in advance.

Jose.

PEAK
01:00.0 Network controller: PEAK-System Technik GmbH Device 0018 (rev 01)
Subsystem: PEAK-System Technik GmbH Device 0002
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-
Interrupt: pin A routed to IRQ 0
Region 0: Memory at ‪18100000‬ (32-bit, non-prefetchable) [disabled] [size=64K]
Capabilities: [50] Power Management version 0
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] MSI: Enable- Count=1/4 Maskable- 64bit+
Address: ‪0000000000000000‬ Data: 0000
Capabilities: [90] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 0.000W
DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L1, Exit Latency L1 unlimited
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s (ok), Width x1 (ok)
TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
Capabilities: [100 v1] Vendor Specific Information: ID=0000 Rev=0 Len=00c <?>
Kernel modules: pcan

KVASER
01:00.0 CANBUS: Kvaser AB Device 0010 (rev 01)
Subsystem: Kvaser AB Device 0010
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 214
Region 0: Memory at ‪18100000‬ (32-bit, non-prefetchable) [size=128K]
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=0 PME-
Capabilities: [80] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 0.000W
DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
LnkCap: Port #1, Speed 2.5GT/s, Width x1, ASPM L0s, Exit Latency L0s unlimited
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s (ok), Width x1 (ok)
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-
Kernel driver in use: kvpciefd

i.MX ProcessorsのトピックImx8m plus pci interface

Imx8m plus pci interface