[fedora-arm] BeagleBone Black CPU speed

Robert Nelson robertcnelson at gmail.com
Sun Dec 29 19:18:37 UTC 2013

On Sun, Dec 29, 2013 at 1:14 PM, Robert Nelson <robertcnelson at gmail.com> wrote:
> On Sun, Dec 29, 2013 at 12:10 PM, Steve Underwood <steveu at coppice.org> wrote:
>> Hi,
>> It looks like the BeagleBone Black is still running at 550MHz with the
>> latest Fedora 20. Does anyone know what is holding it back from running at
>> 1GHz? Is the a uboot thing, or a kernel thing, or something else? I saw a
>> version of uboot referred to as making the BBB run at 1GHz, but when I tried
>> experimenting with that I got the same 550MHz clock speed.
> with v3.12.x:
> These 5 patches are needed:
> https://github.com/RobertCNelson/linux-dev/tree/am33x-v3.12/patches/cpufreq
> or with v3.13-rcX:
> https://github.com/RobertCNelson/linux-dev/blob/am33x-v3.13/patches/dts/0002-arm-dts-am335x-boneblack-add-cpu0-opp-points.patch

ps, while your at it, also add:

to get the full kms experience over hdmi with the

Since they are both dts patches, you don't even have to rebuild the
kernel, just patch the dtb file..


Robert Nelson

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