[PATCH v2 19/27] pci: PCIe driver for Marvell Armada 370/XP systems

[Arnd Bergmann]

On Friday 01 February 2013, Thomas Petazzoni wrote:
> So there is really a range of I/O addresses associated to it, even
> though the device will apparently not use it. Would it be possible to
> detect that the I/O range is not used by the device, and therefore
> avoid the allocation of an address decoding window for this I/O range?

I suspect it just gets disabled because the port number 0xc0010000 is
larger than IO_PORT_LIMIT and we cannot access that offset inside
of the virtual memory window we use for PIO.

	Arnd