On Friday, March 21, 2014 2:32:48 PM UTC, RobertCNelson wrote:
>     
> 2:32 PM (6 hours ago)
> On Fri, Mar 21, 2014 at 9:24 AM,  <cwrse...@gmail.com> wrote:
> > Okay, I'm officially confused.  I've been trying to increase the speed
> > of my BBB from the default 550MHz to 1GHz, and failing; this is with the
> > elderly 3.8.13-37 sources.  After a few failures I went back to a 
seriously
> > ancient kernel, just to get something to run, and found that the
> > 3.8.13-bone22
> > sources boot and run at 1GHz using the performance governor with no
> > problems.
> >
> > I then found that there are a set of patches for _3.12_ on a Fedora 
mailing
> > list which add cpu speed setting, which implies that 3.8 can't set the
> > speed.
> > Can anyone resolve that conundrum?

... snippage ...

I got USB working in 3.14.0-rc7 by turning on most of the CONFIG_USB
stuff, but I hit a wall trying to configure the cpu frequency.  In 3.8.x
at least the files under /sys/devices/system/cpu/cpu0/cpufreq are present
and correct, but with (apparently) the same flags in 3.14 there's no sign
of any cpufreq stuff, or of any governors.  I can even build and load a
governor module, and the /sys directory won't see it and the cpufreq tools
won't find it.

I did my USB trick and turned on every likely cpufreq flag with no change,
so it's something pretty obscure in the config (I doubt it's an actual bug).
Anyone any ideas?  After the last three days I'm fresh out.

> > I then tried building 3.14, since that's the most recent set of fixes
> > (btw am335x-pm-firmware.bin is missing from the 3.14 kernel package)
>
> That actually does not matter, as it does not work outside ti's v3.12.x 
anyways.

However, the 3.14.0-rc7 build fails without it.

>
> > and found that it couldn't boot from the USB; it simply hung trying
> > to access /dev/sda.  It couldn't handle my standard NFS boot either.
> >

This was a config problem, and I bodged a solution, see above.
However, the 3.14.0 cpufreq stuff still won't fly.

Will

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