Hi, On Mon, Mar 16, 2015 at 12:44:50PM -0700, David Daney wrote: > On 03/16/2015 12:27 PM, Aaro Koskinen wrote: > >On Mon, Mar 16, 2015 at 10:39:40AM +0000, Paul Martin wrote: > >>On Fri, Mar 13, 2015 at 08:52:58PM +0200, Aaro Koskinen wrote: > >>>On Fri, Mar 13, 2015 at 05:34:52PM +0000, Paul Martin wrote: > >>>>Octeon II CPUs can switch from Big Endian to Little Endian freely > >>>>even in kernel/supervisor mode. > >>> > >>>You are enabling it on all OCTEONS. Is that valid? At least octeon-usb > >>>still needs to be fixed for little-endian mode. > >> > >>The USB works perfectly with the patches that were posted to this list > >>over the last couple of months. > > > >I was referring to driver for OCTEON+ USB controller in staging. > >ERPro uses EHCI, so it's different. Anyway, I can try to fix the most > >obvious issues myself e.g. bitfields. > > OCTEON Plus CPUs (i.e. those with afore mentioned USB controller) don't > really support Little-Endian operation, so it may not be worth doing > anything with that driver. > > There are several problems: > > 1) The system bootloader (u-boot) must have support for booting > Little-Endian. EdgeRouter LITE doesn't have the proper support. In theory > you could write a LE booting shim, but I am too lazy to explain what it must > do... Would it be possible to support kexec from BE kernel ==> LE kernel? A.
