i.MX Processors中的主题 Re: iMX28 Ethernet controller issue

iMX28 Ethernet controller issue

jrtigerlee — Fri, 15 Nov 2013 07:46:32 GMT

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 ?

Re: iMX28 Ethernet controller issue

ayazshahid — Tue, 03 Dec 2013 15:16:41 GMT

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

Re: iMX28 Ethernet controller issue

jrtigerlee — Wed, 04 Dec 2013 01:44:40 GMT

Hi Ayaz :

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

But seems no one can answer this

Re: iMX28 Ethernet controller issue

ayazshahid — Thu, 05 Dec 2013 11:35:23 GMT

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

Cheers!

Re: iMX28 Ethernet controller issue

DuanFugang — Fri, 06 Dec 2013 01:57:50 GMT

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

Re: iMX28 Ethernet controller issue

YixingKong — Fri, 21 Feb 2014 09:04:12 GMT

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

Re: iMX28 Ethernet controller issue

YixingKong — Thu, 27 Feb 2014 05:51:06 GMT

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