PCI: xgene: Fix IB window setup

Commit 6dce5aa59e0b ("PCI: xgene: Use inbound resources for setup")
broke PCI support on XGene. The cause is the IB resources are now sorted
in address order instead of being in DT dma-ranges order. The result is
which inbound registers are used for each region are swapped. I don't
know the details about this h/w, but it appears that IB region 0
registers can't handle a size greater than 4GB. In any case, limiting
the size for region 0 is enough to get back to the original assignment
of dma-ranges to regions.

Link: https://lore.kernel.org/all/CA+enf=v9rY_xnZML01oEgKLmvY1NGBUUhnSJaETmXtDtXfaczA@mail.gmail.com/
Link: https://lore.kernel.org/r/[email protected]
Fixes: 6dce5aa59e0b ("PCI: xgene: Use inbound resources for setup")
Reported-by: Stéphane Graber <[email protected]>
Tested-by: Stéphane Graber <[email protected]>
Signed-off-by: Rob Herring <[email protected]>
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Krzysztof Wilczyński <[email protected]>
Cc: [email protected] # v5.5+

0 files changed, 0 insertions, 0 deletions