On Sat, 10 Jul 2010 22:49:18 +0200
Sebastian Krzyszkowiak <[email protected]> (SK) wrote:

SK> On Sat, Jul 10, 2010 at 22:22, Sebastian Krzyszkowiak
SK> <[email protected]> wrote:
SK> > On Sat, Jul 10, 2010 at 21:36, Sebastian Krzyszkowiak
SK> > <[email protected]> wrote:
SK> >> On Sat, Jul 10, 2010 at 21:23, Tha_Man <[email protected]>
SK> >> wrote:
SK> >>>
SK> >>> Hi,
SK> >>> Gennady suggested the same thing, but the 450Mhz-settings fail
SK> >>> on kernel start (see my previous message, I haven't tried the
SK> >>> 465 settings). These settings need a recompiled kernel
SK> >>> according to Gennady's first message, did you recompile your
SK> >>> kernel? If not, I'm very curious why it doesn't work for me!
SK> >>> I'm assuming you're running QtMoko v24 as well, either from SD
SK> >>> or NAND.
SK> >>>
SK> >>> Cheers,
SK> >>> Tha_Man
SK> >>
SK> >> 450/112 and 465/116 settings work for me even with 1.55V (just
SK> >> tested) and it seems to not work for others, as they need at
SK> >> least 1.65V :x But I can't use 533/88 nor CLK3, so it seems to
SK> >> be kind of deal ;) (or just component tolerance :D)
SK> >>
SK> >> I'm using SHR with our default 2.6.32 kernel.
SK> >
SK> > If someone wants to test:
SK> > 
http://dos.openmoko.pl/overclock/qi-s3c2442-master_c38b062a609f1442-dos-465-116-1.55-1.8.udfu
SK> > Qi with CPU clocked at 465MHz with 1.55V and memory at 115MHz with
SK> > 1.8V (so no kernel patch needed)
SK> > http://dos.openmoko.pl/overclock/465-116-1.55-1.8.patch
SK> >
SK> > It works for me and so far seems to be stable, but most of you
SK> > will probably need memory voltage being bumped to 1.9V and for
SK> > that you need to patch kernel.
SK> >
SK> > I have GTA02A5 with date code 20080621.
SK> >
SK> > U-Boots compiled by gena2x are available at
SK> > http://bsdmn.com/openmoko/uboot500/

ok, after a bit of playing around, some 450MHz do work out of box,
all 465 result in kernel panic for me.

with 450 i can use 1.5, (probably 1.55) and 1.6. 1.65 ends with panic
again. With 1.65 X crashed after short while so 450-112-1.5-1.8 is
being used now. the only thing that seems to me is strange touch screen
(non) responsiveness - although buttons seem to register the tap,
several taps are required for buttons to in fact react.

suspend/resume work, with quite often random wakeups.


speed improvements - on startup i measured 3 seconds better time, in
applications one has to see.

seems quite interesting :), i will most likely want to try more MHz with
tweaked kernel too.


Petr






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