2009/9/17 Fred Fan fanyefeng@gmail.com:
Dear Javier Martin:
2009/9/17, javier Martin javier.martin@vista-silicon.com:
I've found some problems because the cache is enabled, I don't see any place where you disable it. [Fred] Do you means D-cache is enabled? There are no mmu enabled, D-cache should be disabled as default setting.
This is what I also though but I found it making some debugging through JTAG + GDB.
As I stated in my first mail, FEC driver was getting stuck after transmitting a frame in a while() loop. However, using wireshark the frame had actually been sent. And using GDB I found that in the SDRAM the while() condition was true, nevertheless the microprocessor was evaluating it as false. That seemed to cache issues to me, so I put a "dcache_disable()" just before that while() loop and saw that these problems were not happening anymore.
What is your opinion? Thanks.