CAN bus on imx7 not working

Hi,
I am using imx7d with colibri evaluation kit. I need to log the can data.
I have made the modification as mentioned in the below link.

https://developer.toradex.com/knowledge-base/can-(linux)#Kernel_Support_Colibri_iMX7

root@colibri-imx7-emmc:~# ip link set can0 type can bitrate 500000 triple-sampling
Cannot find device "can0"

I am getting this error :Cannot find device “can0”.
BSP i am using is Linux colibri-imx7-emmc 4.1.44-00001-gdd5a082f1307-dirty

I have attached the dmesg.

What exact HW version are you using?

Hi,
I am using V1.1A

In my dmesg i get this

[ 1.157727] flexcan: probe of 30a10000.can failed with error -110

root@colibri-imx7-emmc:~# dmesg | grep can
[    0.128534] i2c i2c-0: can't use DMA
[    0.129045] i2c i2c-3: can't use DMA
[    1.138618] flexcan 30a10000.can: Looking up xceiver-supply from device tree
[    1.138635] flexcan 30a10000.can: Looking up xceiver-supply property in node /soc/aips-bus@30800d
[    1.138653] 30a10000.can supply xceiver not found, using dummy regulator
[    1.148825] flexcan 30a10000.can: registering netdev failed
[    1.157727] flexcan: probe of 30a10000.can failed with error -110
[    2.182404] can: controller area network core (rev 20120528 abi 9)
[    2.199519] can: raw protocol (rev 20120528)
[    2.206962] can: broadcast manager protocol (rev 20120528 t)
[    2.215837] can: netlink gateway (rev 20130117) max_hops=1

And

root@colibri-imx7-emmc:~# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:14:2D:2F:7C:A0  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1%1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:2724 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2724 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:196720 (192.1 KiB)  TX bytes:196720 (192.1 Ki

Hi @max.tx

Still i am not able to get it to work.

Can you provide the full boot log including u-boot?

Hi,

bootlog

Unfortunately that module is defective, please follow the RMA procedure:
https://www.toradex.com/support/return-material-authorisation

Hi,

We have several other modules, i tried that in other two modules also.
Do you say that all the other modules are defective?

Hi @dominik.tx ,

We have 10 imx7d modules and we are planning for 300 more for production. CAN interface is a major interface for our product. We have put lot of efforts in developing carrier board and bsp.

What is the solution?

New modules do not have this issue.

Shall i fill in RMA for all 10 modules?

If they match the marking in the comment above, Yes.

@dominik.tx
Thanks for the support.

CAN bus is factory disabled by NXP on all IMX7D SoC with markings MCIMX7D5EVM10SD and datecode <= 1820
If you have modules with those markings and you require the use of CAN please use RMA to get those modules replaced.