i.MX6DL 100M ETHERNET RMII PHY LAN8720AI-CP

[rameshasp]

Hello Sir,

Currently i am using imx6dl custom board, i am not getting my eth0 up after doing this, tested all 5 boards,link is up with 3 boards are  and able to ping the ip address, for remaining 2 boards link is down not able to ping ip address.

Please see the log which is not getting link up log.

sabresd_6dq:/ # ifconfig eth0 up
type=1400 audit(119.050:7): avc: denied { ioctl } for pid=1191 comm="ifconfig" path="socket:[16148]" dev="sockfs" ino=16148 ioctlcmd=0x8914 scontext=u:r:shell:s0 tcontext=u:r:shell:s0 tclass=udp_socket permissive=1
sabresd_6dq:/ # type=1400 audit(119.050:8): avc: denied { net_admin } for pid=1191 comm="ifconfig" capability=12 scontext=u:r:shell:s0 tcontext=u:r:shell:s0 tclass=capability permissive=1
fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
fec 2188000.ethernet eth0: Link is Down
fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
fec 2188000.ethernet eth0: Link is Down
fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
fec 2188000.ethernet eth0: Link is Down
fec 2188000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
fec 2188000.ethernet eth0: Link is Down

Could you please help me on this immediately

Thanks & Regards,

Ramesha S P.

[igorpadykov]

Hi Ramesha

if only some boards have issue this may be caused by hardware and

one can check soldering with x-ray and try to resolder processor.

Also one can check power supplies and clocks using guidelines of

i.MX6 System Development User’s Guide

https://www.nxp.com/docs/en/user-guide/IMX6DQ6SDLHDG.pdf

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

[rameshasp]

Hello Igor,

Thanks for the  reply,

some times working board also getting link down and i have tried with different network like 8Mbps and 100Mbps speed but i getting same response from the both the board.

Thanks & Regards,

Ramesha S P