pci/bridge: clean up of pci_bridge_initfn()
- use symbolic constant - use helper function pci_set_xxx() - removed lines which initializes to 0. It is unnecessary because it is already zeroed. - add some comments on command registers. Some initial values are suspicious because they seems to be specific to apb_pci.c which is the only user of pci bridge right now. For now don't touch those values to avoid breakage. Signed-off-by: NIsaku Yamahata <yamahata@valinux.co.jp> Acked-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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