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(parent: 9092b20) | patch
cardbus: limit IO windows to 256 bytes
authorLinus Torvalds <torvalds@g5.osdl.org>
Sun, 23 Oct 2005 23:31:16 +0000 (16:31 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Sun, 23 Oct 2005 23:31:16 +0000 (16:31 -0700)
commit4196c3af25d98204216a5d6c37ad2cb303a1f2bf
treeac636ec99466e67eaa1b52555517a48a1c4fcb35tree | snapshot
parent9092b20803e4b3b3a480592794a73030f17370b3commit | diff
cardbus: limit IO windows to 256 bytes

That's what we've always historically done, and bigger windows seem to
confuse some cardbus bridges. Or something.

Alan reports that this makes the ThinkPad 600x series work properly
again: the 4kB IO window for some reason made IDE DMA not work, which
makes IDE painfully slow even if it works after DMA timeouts.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/pci/setup-bus.c diff | blob | history
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