[PATCH 02/32] staging: brcm80211: new Kconfig item to enable IO reordering fix

Christoph Hellwig hch at infradead.org
Sat May 14 10:23:15 UTC 2011


On Fri, May 13, 2011 at 11:59:22AM +0200, Arend van Spriel wrote:
> From: Roland Vossen <rvossen at broadcom.com>
> 
> bcm4716 (which includes 4717 & 4718), plus 4706 on PCIe can reorder
> transactions. As a fix, a read after write is performed on certain places
> in the code. Older chips and the newer 5357 family don't require this fix.

Is this issue specific to the wireless cores?  It sounds like this is
a general issue with the PCI(e) support on these SOCs, and probably
should be worked around in the architecture specific PCI code.




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