iMX28 Ethernet controller issue

[jrtigerlee]

I enable my Ethernet eth0 and eth1 to communication ,

then plug in-out on eth0 will reset eth1 and vice versa,

that I found docs from https://community.freescale.com/docs/DOC-94983 to explain this issue.

So I masked this GPIO reset function in fec_restart() on fec.c ,

And then plug in-out eth0/eth1 cable test again.

I found another critical issue , in fec_restart() function ,

when I write MAC0 register FEC_ECNTRL(HW_ENET_MAC_ECR) reset bit ,

both eth0 and eth1 will also be reset and the communication will be interrupted.

And if i write MAC0 register FEC_R_CNTRL(HW_ENET_MAC_RCR) RMII_MODE bit to disable,

both eth0 and eth1 will also be reset again.

But when I write this two register from MAC1 , it will not affect eth0

Does anyone have the same issue ?

[ayazshahid]

I have the same issue. Did you get a word from Freescale? Have they tagged it as an errata?

[jrtigerlee]

Hi Ayaz :

No , Freescale told to me to post this issue to community.

But seems no one can answer this

[YixingKong]

Jrtiger

This discussion is closed since no activity. If you still need help, please feel free to reply with an update to this discussion, or create another discussion.

Thanks,

Yixing

[YixingKong]

Jrtiger

Had your issue got resolved? If yes, we are going to close the discussion in 3 days. If you still need help, please feel

free to reply with an update to this discussion.

Thanks,
Yixing

[ayazshahid]

Well tough luck for us then. Thanks for getting back to me

Cheers!

[DuanFugang]

The issue link to https://community.freescale.com/thread/315877