[U-Boot-Users] No ethernet link on Lubbock board.

[Jerry Van Baren]

Victor wrote:
> Something more I have found out:
> 
> I've looking at drivers/net/lan91c96.c:
> 
> I have enabled Debug, and hardcoded my Mac address on get_rom_mac().
> 
> I loaded u-boot on my board, and when I run a tftp command I get this:
> 
> $ tftp
> LAN91C96:smc_close
> LAN91C96:smc_shutdown
> LAN91C96:smc_open
> LAN91C96:smc_reset
> LAN91C96:smc_enable
> Using MAC Address 00:02:B3:00:8F:3B
> *** Warning: no boot file name; using 'C0A80102.img'
> TFTP from server 192.168.1.1; our IP address is 192.168.1.2
> Filename 'C0A80102.img'.
> Load address: 0xa0008000
> Loading: LAN91C96: memory allocation, try 1 failed ...

Ahhh, that and grep ought to narrow down the error domain hugely.  Bingo:
<http://git.denx.de/cgi-bin/gitweb.cgi?p=u-boot.git;a=blob;f=drivers/net/lan91c96.c;h=c23a4000a2860cfa596fd864c11da8ff4b22c4b6;hb=c956717ab25c962ef49d49064dfc73f4edcba1fb#l449>

Now you just have to figure out why the chip doesn't want to allocate 
memory or perhaps you have a problem with the MEMORY_WAIT_TIME 
definition?  Maybe your CPU is too fast, maybe you need a delay in the 
loop or need to make the loop (MEMORY_WAIT_TIME) longer?

Best regards,
gvb