Enable cpufreq for zynq 7000

[mokhtarbouain]

Hi all, 

I use the Zc702 board and I need the cpufreq option to scaling the frequency of the cortex-a9 on zynq board.

So, how can I do this? there is any method to do it quickly ? (there is Linux kernel contains this feature? or I have to patch the kernel available?).

Thank you

Bouain 

[sampatd]

Check the link below:
http://www.wiki.xilinx.com/Zynq+Power+Management

[mokhtarbouain]

Hi,

Thank for your reply.

Yes, I saw it, but there are no details explain how can I do it?

That is means how can I add the cpufreq option to Linux for zynq.

Bouain 

[mokhtarbouain]

I am using the 3.5.0-14.3 kernel, and I download it from xilinx website.

uname -a
Linux ZC702 3.5.0-14.3-build2 #1 SMP PREEMPT Tue Oct 23 11:12:17 PDT 2012 armv7l GNU/Linux

 Any help?

[mokhtarbouain]

I am using the 3.5.0-14.3 kernel, and I download it from xilinx website.

uname -a
Linux ZC702 3.5.0-14.3-build2 #1 SMP PREEMPT Tue Oct 23 11:12:17 PDT 2012 armv7l GNU/Linux

[tmcdowe · Accepted solution]

For proper frequency scaling support, please update to a more recent kernel (3.8 or later) from our Git repository.