Ethernet issues after hard reset Apalis iMX6Q

Technical Support
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1

I am having an Ethernet issue with the Apalis iMX6Q on a custom carrier board with BSP 5.1.0-devel. The problem I am having is identical to this one that has no answer given. Basically I have built my custom Linux image and installed it onto the module. Everything works fine even after multiple reboots. However, when a hard reset is performed (i.e. power is removed and reapplied) the Ethernet module just seems to forever toggle from link up to link down.

 [   10.235370] fec 2188000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
 [   10.263425] fec 2188000.ethernet eth0: Link is Down
 [   12.700608] fec 2188000.ethernet eth0: Link is Up - 1Gbps/Full - flow control rx/tx
 [   12.723248] fec 2188000.ethernet eth0: Link is Down

This continues for seemingly forever. The only fix I have discovered is to reinstall the OS.

Any thoughts?

2

We are not observing mentioned Eth behavior with Toradex provided images on Toradex carrier boards. Apparently something is wrong with your carrier board and/or software you are using,

Are you building your own image or using a Toradex prebuild one? Can you share an Ethernet related part of your board schematic?

3

@alex.tx I am building my own image. The hardware works fine, we have been using it now for over a week with no problems. This only started after doing a power cycle (i.e. power removed and then reapplied)

4

Can you reproduce your issue with Toradex provided pre-build BSP?