CVS log for src/sys/dev/pci/ehci_pci.c

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Default branch: MAIN
Current tag: netbsd-5-0-1-RELEASE

Revision 1.38.16.1 / (download) - annotate - [select for diffs], Wed Jun 17 20:33:36 2009 UTC (14 years, 10 months ago) by bouyer
Branch: netbsd-5-0
CVS Tags: netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20091211, matt-nb4-mips64-k7-u2a-k9b
Branch point for: matt-nb5-mips64
Changes since 1.38: +82 -2 lines
Diff to previous 1.38 (colored) next main 1.39 (colored)

Pull up following revision(s) (requested by cegger in ticket #814):
	sys/dev/pci/ehci_pci.c: revision 1.45
Apply hw workaround required for all SB600 revisions and SB700 revisions
A12 and A13 to avoid USB subsystem hang symptom. The USB subsystem hang
symptom is observed when the system has multiple USB devices connected to it
or one USB device is often re-connected. In some cases a USB hub may be
required to observe this symptom.
This patch works around the problem by correcting the internal register setting
that will help by changing the behavior of the internal logic to avoid the
USB subsystem hang issue. The change in the behavior of the logic does not
impact the normal operation of the USB subsystem.
This fix has been discussed, developped, reviewed, polished up
and tested on current-users by several people. Thread starts at:
http://mail-index.netbsd.org/current-users/2009/05/17/msg009460.html

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