On Wed, Jun 05, 2013 at 12:27:31AM +0530, Jay Agarwal wrote: [...] > @@ -29,7 +29,7 @@ > ranges = <0x82000000 0 0x00000000 0x00000000 0 0x00001000 /* port 0 configuration space */ > 0x82000000 0 0x00001000 0x00001000 0 0x00001000 /* port 1 configuration space */ > 0x82000000 0 0x00004000 0x00004000 0 0x00001000 /* port 2 configuration space */ > - 0x81000000 0 0 0x02000000 0 0x00010000 /* downstream I/O */ > + 0x81000000 0 0 0x02000000 0 0x00100000 /* downstream I/O */ > 0x82000000 0 0x20000000 0x20000000 0 0x10000000 /* non-prefetchable memory */ > 0xc2000000 0 0x30000000 0x30000000 0 0x10000000>; /* prefetchable memory */ That increases the I/O region size from 64 KiB to 1 MiB. Why is that necessary? I/O operations can only address 64 KiB, so I don't think adding more makes any sense. Thierry
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