Troubele passing bootargs to set open ethernet mac address

Hi,

I am having trouble passing the mac address from u-boot.

I am using the nios2-linux-20100621.tar.gz distribution with OpenCores ethernet 10/100 MAC.

My bootargs passes this to linux

CONSOLE=/dev/ttyS0 root=/dev/ram0 rw panic=10 mtdparts=flash-0:256k(PART0)ro,128k(PART1),128k(PART2),1536k(PART3),32m(PART4),16m(PART5),8m(PART6),5088k(PART7),256k(PART8)ro oeth_mac=00:1b:97:00:01:3b mzt_diag

And this is reported on console 0.000000] Kernel command line: CONSOLE=/dev/ttyS0 root=/dev/ram0 rw panic=10 mtdparts=flash-0:256k(PART0)ro,128k(PART1),128k(PART2),1536k(PART3),32m(PART4),16m(PART5),8m(PART6),5088k(PART7),256k(PART8)ro oeth_mac=00:1b:97:00:01:3b mzt_diag

However, ifconfig reports the hardcoded mac address

root:~> ifconfig -a

eth0 Link encap:Ethernet HWaddr 00:07:ED:0A:03:29

inet addr:10.1.2.104 Bcast:10.1.2.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:1238 errors:0 dropped:21 overruns:0 frame:16

TX packets:6 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

Interrupt:4 Base address:0x1000 Memory:4000-7fff

I have selected the parse command line option in kernel config.

Any ideas whats wrong? Is oeth_mac the correct bootargs variable?

BTW, the ethernet link is up and working albeit with the wrong mac address. I can do telnet from and to my controller.

Thanks in advance,

Barada