Hi all!
I have custom designed ARM board, based on AT91RM9200EK reference design. Hardware works fine. And I have following problem: When U-boot loads Kernel image from tftp, everything fine. When U-Boot starts kernel from flash, then Linux cannot communicate to ethernet device. I understand, that this is because MAC address was not set by U-Boot. But I could not find a command to initialise Ethernet.
I have the same problem with an other AT91RM9200 based board, but this is not an u-boot issue. The kernel driver for the emac should initialize this correctly, but this is obviously not the case. I worked around this problem by doing a ping manually before booting linux or by inserting the eth_init() function call in start_armboot().
Regards
Mirco