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i.mx28evk no eth0 with power from USB

Question asked by chris321 on Nov 26, 2012
Latest reply on Nov 29, 2012 by chris321
Branched to a new discussion

Hello Community,

if I run the i.mx28evk(L2.6.35) with power from the 5V jack all things work fine. I use udhcpc to get an IP.

But if i power it from the USB port J82 (with S3:ON and S16:USB 5V) the Ethernet won't work.

I don't get dhcp responses with power from USB.


$ ifconfig eth0

eth0      Link encap:Ethernet  HWaddr 00:01:9F:02:4D:72

          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)

          Base address:0x8000


$ udhcpc

udhcpc (v1.15.0) started

eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=0:00, irq=-1)

Sending discover...

Sending discover...

Sending discover...



I think it's the same problem like in this thread eth0 problem in imx28 evk but I'm not sure. Are there any solutions for this?