maemo.org - Talk - Overclock the N900?

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maemo.org - Talk (https://talk.maemo.org/index.php)

- Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)

- - Overclock the N900? (https://talk.maemo.org/showthread.php?t=39753)

UNderworld

2010-04-04 13:38

Re: Overclock the N900?

Quote:

Originally Posted by UNderworld (Post 594877)

could someone explain the DSP??
is 930mhz 500dsp mean 30mhz more than 900mhz? or is it a different story??

what dsp is the 900mhz and the 800mhz ones at? and whats the difference?
thanks

anyone????

titi974

2010-04-04 13:40

Re: Overclock the N900?

yeap, i'd like to know for the dsp... would maybe be useful for psx4all !

F2thaK

2010-04-04 13:42

Re: Overclock the N900?

both work great i know that much

titan

2010-04-04 13:43

Re: Overclock the N900?

Quote:

Originally Posted by Matan (Post 594901)

As it stands, it seems that the clock handling code only supports one frequency per OPP. Instead of fixing it I hacked around this limitation. This patch has a range of nine frequencies, from 125 to 600, but at boot scaling_max_freq is at 600000.
http://my.arava.co.il/~matan/770/n900/freqs.diff

looks similar to my patch
http://maemory.com/N900/overclock/overclock.diff
I guess I should also change set the second occurence of max_freq in cpu-omap.c

mod1fied

2010-04-04 13:47

Re: Overclock the N900?

iplayer used to work okish fullscreen @ 600mhz. Now mine is clocked at 800mhz everything else is alot faster but iplayer is unwatchable.

Any ideas?

Matan

2010-04-04 13:48

Re: Overclock the N900?

Your patch is problematic, since the OPPs are not only indexes, they have a physical meaning. See my changes in smartreflex.c for more details.
Also, the same indexes (selected by the mpu table) are used to access the mpu and the dsp tables, so they must be the same size (or use some other hack, as I did in the file resource34xx.c).