В Tue, 19 Aug 2008 12:03:42 +1000 Benjamin Herrenschmidt <[EMAIL PROTECTED]> пишет:
> > .../... > > > There is a software workaround that uses a trick to detect if > > full-speed interface is enabled from the hi-speed driver(and vice > > versa), and use suspend control for ohci to enable/disable it > > appropriately. > > Initial version of the software workaround was posted to > > linux-usb-devel: > > > > http://www.mail-archive.com/[EMAIL PROTECTED]/msg54019.html > > > > and later were made available from amcc.com: > > http://www.amcc.com/Embedded/Downloads/download.html?cat=1&family=15&ins=2 > > > > The patch below is generally based on the latter, but reworked to > > powerpc/of_device USB drivers, and uses a few devicetree inquiries > > to get rid of (some) hardcoded defines. > > Well, it seems to still call things based on #ifdef CONFIG_* instead > of testing for whatever "errata" bit or flag you can initialize. > > A proper approach is to have the OF probe code detect via some > device-tree compatible testing or such, that it's indeed hitting the > broken chip, use that to set a quirk in the controller, and then > have the core ehci-hub.c code do whatever it has to do based on > the presence of that quirk. Makes sense, thanks. I'll look into rearranging stuff appropriately over this weekend. Thanks, -Vitaly _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
