[Arm-netbook] Official Max CPU speed of Alwinner A10

[Chinmay V S]

Have been able to clock A10 CPU to ~1.3Ghz without any voltage changes on
iBerry BT-07i http://goo.gl/Dhcn5
Stock frequency was 1Ghz.

Ran continuously at ~1.3Ghz for 3hours without any problems.
(got bored after that and stopped testing).

Have set it to on-demand governor from 120Hz to 1.2Ghz.
Runs nicely without any issues whatsoever.

At 1.44Ghz (on default voltage) random hangs and reboots occur.

regards
CVS




On Sat, Mar 3, 2012 at 10:28 PM, lkcl luke <luke.leighton at gmail.com> wrote:

> On Sat, Mar 3, 2012 at 4:04 PM, vasant <vasant at microxwin.com> wrote:
> > Hi,
> >
> > What is the maximum speed of A10 as per the data sheet ?
>
>  it's officially 1ghz, but in the speeds listed in the kernel it goes
> up to 1.5ghz.  the only thing with actually trying that is that you'd
> need to adjust the core voltage etc. supplied by the AXP209 IC in
> order to cope.  Your Mileage May Vary as to the success of doing that
> kind of thing.  i.e. if it goes "pop" and the magic smoke leaves the
> CPU, don't blame anyone for having tried it :)
>
> l.
>
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