Hi,all. I am debug PCI video chip MB86297,which runs on Windriver SBC8548E evl board.Now I can run "pci 0 long" command and see MB86297 configuration space,which seems to be all right.But when I run "pci modify" command to modify pci register ,such as command reg,BAR reg, they can't be modified. I wonder what's the matter with it.And if I want to make vider card display something,what step(s) sholuld I do? Hope any advice,Thank you very much!