Getting flash to work in Qsys for DE2-115

Hi all,

i'am trying to build a minimum system in Qsys to test all the memories on the DE2-115 platform. I got all memories working but the flash. I tested one the of the provided SOPC example, and the flash is working. But when using Qsys (tri-state controller + tri-state bridge) i cannot get access to the flash (mem test sample fails).

Has anyone got the flash working on this board with Qsys ?

Thanks