[ELDK] MPC5200 FEC Network Adapter is not initialized

Stefan Strobl nst at gersys.de
Mon Nov 29 16:08:54 CET 2010


On 11/26/2010 02:42 PM, Peter Kuennemann at itb wrote:
> Hello,
> i have successfully got a lite5200b board up and running with
> uBoot and linux kernel including JFFS and squashfs
> file systems in flash. It boots with no problem but I am unable
> to use the network adapter (FEC ETHERNET) from within linux.
> If I initialize the NIC from uBoot by issuing a NTP command prior
> to the bootm, the network adapter is working.

I had this problem too. In my case the problem was caused by an 
incorrect port multiplex configuration in U-Boot, see 
CONIFG_SYS_GPS_PORT_CONFIG (I use 0x xxx5xxxx, which corresponds to 
10/100Mbit Eth with MD).

When running any network command under U-Boot the function eth_init() is 
called which sets the port conifg correctly.


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