PCI: designware: Fix I/O transfers by using CPU (not realio) address

pp->io_base, which is the input of the outbound IO address translation
unit, should be the CPU address.  It was incorrectly programmed to the
realio address.

We should pass global_io_offset rather than sys->io_offset to
pci_ioremap_io(), so we map the new window into the first available spot in
the Linux view of the I/O space.

We must also pass CPU address instead of realio address to pci_ioremap_io().

This patch fixes above issue.  It has been tested with Lecroy PTC in AIC
mode and Pericom PI7C9X2G303EL PCIe switch, which does not work otherwise.

Tested-by: Mohit Kumar <[email protected]>
Tested-by: Tim Harvey <[email protected]>
Signed-off-by: Pratyush Anand <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Marek Vasut <[email protected]
Reviewed-by: Jagannadha Sutradharudu Teki <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
Acked-by: Jingoo Han <[email protected]>
Cc: Richard Zhu <[email protected]>

0 files changed, 0 insertions, 0 deletions