[U-Boot] initialisations do by tftp

[g.carpentier at neomore.com]

Hi,

 

I have a question about initialisations that the tftp command do in u-boot.
I try to make a Linux for a Cogent SBC637 and I am able to boot my kernel
(save in flash at address 0x10040000) with a NFS if I use the tftp or
tftpboot command to load any file in RAM before the "bootm 0x10040000"
command but if I didn't do that I have a kernel panic because eth0 is not
initialise. Could you tell me what tftp command do exactly? Or how can I
resolve this problem.

 

Thanks in advance for your help.

 

G.