1GHz mpurate for Beagle xM

GoogleGroups
1

Hi,

I recently booted up my beagle xM rev B using the Angstrom image that came with it for the first time in ages. I noticed that it claims to set the mpurate to 1GHz. Last time I tried on the official Ubuntu images (err, 10.10 upgraded to 11.most_recent) I could only get 800MHz. So is "the kernel" now ready for 1GHz?

beagle$ uname -a
Linux beagle 2.6.38-8-omap #42-Ubuntu Mon Apr 11 12:45:46 UTC 2011 armv7l armv7l armv7l GNU/Linux

How about Robert C. Nelson's demo images?

I need a Debian-based distro though, so unfortunately Angstrom is a non-solution.

cheers
peter

2

Hi,

I recently booted up my beagle xM rev B using the Angstrom image that came with it for the first time in ages. I noticed that it claims to set the mpurate to 1GHz. Last time I tried on the official Ubuntu images (err, 10.10 upgraded to 11.most_recent) I could only get 800MHz. So is "the kernel" now ready for 1GHz?

beagle$ uname -a
Linux beagle 2.6.38-8-omap #42-Ubuntu Mon Apr 11 12:45:46 UTC 2011 armv7l armv7l armv7l GNU/Linux

How about Robert C. Nelson's demo images?

Not yet with my 2.6.38 image, the diff from mainline was getting
pretty large, so i only opted for panda display support..
I'm planing with my 2.6.39 image, just going to enable the twl4030
voltage change from Max? and enable 1Ghz with out sr1.5 in
mainline,(it didn't make it in 2.6.39 and who knows if it'll go in as
is...)..

A couple weeks ago i had an irc hack session with Ricardo, and ubuntu
going to go the same way with an omap3 image.. (i don't know if he's
pushed it out yet either..)

shortanswer: not yet today.. :wink:

I need a Debian-based distro though, so unfortunately Angstrom is a non-solution.

Actually, copy the Angstrom uImage and modules to your debian system,
it should run just fine.. :wink:

Regards,

3

Hi,

The good news is that 2.6.39 already has SmartReflex support and smoke
test of 2.6.39-rc7 shows that kernel works @ 1 GHz (with some fixes of
course). It also has two issues with alignment traps (that is why it
hangs after uncompressing). I'm waiting for 2.6.39 release (in the
next two weeks I guess) and I'll post patches later.

Cheers,
Max.

4

Robert, do you host your git tree somewhere?

5

Its more of a kernel patchset then a true tree.

http://github.com/RobertCNelson/

(The 2.6.39 one is my current active one)

6

I'm able to get 1Ghz by increasing the voltage, but after doing some
more proper testing it seems that's still not reliable :frowning:

So best option would probably be to enable it with 39, if you don't
want to maintain a large patch set.

Cheers,

7

I think this processor requires a heat sink at 1GHz speed

2011/5/17 Ricardo Salveti <rsalveti@rsalveti.net>