HI im working on linux, my problem its this: when i restart the system by command line "reboot" on my console, the system turn on well , but when i check the network, it doesnt work, it only works when i restart the system by pressing the physical button. where can be the problem? i hope someone can help me THanks!
Do you mean pressing the reset button or actually turning the FA OFF and back ON again? I found that RESET button != Power ON/OFF || physically removing and replacing an SD card. Wasted days on that one. Sorry, I don't know why.
i think you didnt understand me, i mean that when i press the reset button or turning off and on again, the mini2440 starts well, with out any problem BUT when i restart the mini by console (terminal) using the comand line "reboot" the system restarts well But with out network! i hope this time i have been clear about what its my problem Thanks!
A work-mate suggested that the ethernet uses the DMA pool. Perhaps a re-boot either loses the access to that (part of the pool or ?? Good luck
This issue sounds more like trouble with the network phy. In the case of a cold start it gets reset correctly, but on a warmstart not and the network driver fails to init it afterwards. Enable the debug outputs in the network driver and take a look to the kernel's output the next time you hit this problem.