[fedora-arm] BeagleBone Black CPU speed

Nigel Sollars nsollars at gmail.com
Sun Dec 29 22:13:00 UTC 2013


Hi all,

Hey Robert do you have a rc ( 3.13 ) kernel rolled?.

Regards


On Sun, Dec 29, 2013 at 2:18 PM, Robert Nelson <robertcnelson at gmail.com>wrote:

> 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:
>
> https://github.com/RobertCNelson/linux-dev/blob/am33x-v3.13/patches/dts/0001-arm-dts-am335x-boneblack-lcdc-add-panel-info.patch
>
> to get the full kms experience over hdmi with the
> CONFIG_DRM_TILCDC/CONFIG_DRM_I2C_NXP_TDA998X
>
> Since they are both dts patches, you don't even have to rebuild the
> kernel, just patch the dtb file..
>
> Regards,
>
> --
> Robert Nelson
> http://www.rcn-ee.com/
> _______________________________________________
> arm mailing list
> arm at lists.fedoraproject.org
> https://admin.fedoraproject.org/mailman/listinfo/arm
>



-- 
“Science is a differential equation. Religion is a boundary condition.”

                      Alan Turing
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.fedoraproject.org/pipermail/arm/attachments/20131229/a06dba38/attachment.html>


More information about the arm mailing list