[U-Boot-Users] Can't configure PCI configuration space

[zhanglei459]

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!
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