Some systems have PCI addresses that don't fit in unsigned long (eg some
32-bit PowerPC 440 systems have 36-bit bus addresses).  Fix up the driver
by using phys_addr_t where appropriate, so we don't truncate any PCI
resource addresses before ioremapping them.
Signed-off-by: NJohn L. Burr <jlburr@cadence.com>

[ Update to apply to current driver source.  - Roland ]
Signed-off-by: NRoland Dreier <rolandd@cisco.com>