running configuration cycle across the secondary side of a non transparent(21554) bridge

[bhupinder sahran]

hi all
i am trying to run configuration cycle across the
secondary of 21554 bridge, from my MPC8240 on which
linux is running.
i am not able to write anything into the downstrean
configuration register which is at offset 0x90 from
the primary interface.
i have enabled the downstream configuration control &
status register also.
i have tried to write through CSR I/O BAR also.
but could not write.
can anybody tell me what could be the reason.
thanx in advance
bhupi


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