CVS commit: [netbsd-5] src/sys/dev/pci

[Manuel Bouyer <bouyer%netbsd.org@localhost>]

Module Name:    src
Committed By:   bouyer
Date:           Wed Jun 17 20:33:39 UTC 2009

Modified Files:
        src/sys/dev/pci [netbsd-5]: ehci_pci.c

Log Message:
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


To generate a diff of this commit:
cvs rdiff -u -r1.38 -r1.38.10.1 src/sys/dev/pci/ehci_pci.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.