[Kernels] Overclock kernels for stock 1.2 [2011-05-13 update BFS version] - Nook Color Android Development

Using this kernel is at your own risk. Before flashing make backups!!!
=========================WHY===============================
dalingrin is now working hard at CM7 kernel, and seems nobody has post the 1.2 overclock kernel, I'v recompiled the 2.6.32.9 kernel with a few of dalingrin's patches(modified from dalingrin's git).
so for the one who wants to taste some fresh meat, here it comes~~
=========================WHAT==============================
http://sugwacee.dyndns.org/index.php/16.html?p=/20110505
there are four versions:
1.1GHz
1.2GHz
stock 800M
BFS test version[/URL](1.1GHz)--for test only, cos it is set to very low voltages just for my NC. use it at your own risk.
1.1g version is recommended, and if your NC is a tuff one, try 1.2g
changes differ from stock 1.2 kernel(2.6.32.9):
1. freq table changed, boot 900M, and has a 1.2G/1.1G option. you can active it by using SETCPU. now let's go to youtube...
2. volume tweaks.
3. cifs and utf8 supported.
4.freq transition latency tweaks.
5. volt down.
6. ram speed tweaks, i don't know if it works or not(stock1.1->1.2 has change ram freq from 166M to 200M, and i am using a kernel which configured it as 220M, and if stable, i will post it) -- in BFS VERSION
7. BFS sched. currently i have BFS as the proc sched, all crazy(with quadrant 3D/2D improved slightly~1 fps up at DNA test, and excellent touch experience). but wifi has gone(kmod version issue maybe)[/COLOR] -- fixed, thanks to verygreen.
==========================HOW==============================
And of course, use CWM to flash the new kernel, just enjoy them. first boot after flashing will display an "update failed notice", turn off and then on to ignore this.
Just feel free to post feedbacks, and you can post your file:/sys/power/sr_vsel
special thanks to:
Dalingrin, for his great patches and works for NC/CM.
Verygreen, for the wlan_drv and too all the CM related works.
=======================[2011-05-13 EDIT]=============
Add BFS version.
because BFS version use a new tiwlan_drv.ko, if you change back to another kernel, do remember use NC_stock_1.2_restore_wlan_drv.zip to restore stock tiwlan_drv.ko.
===========current feedbacks============
1.1g seems to be stable for most of people. but I still doubt of it:
quadrant sometimes stop at running H.264 benchmark, I do think it has something to do with the DSP freq/volt, i have recompiled a new version to confirm this. release ASAP.

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thanks,,,, will give it a try,,, 1.1 g gives me a quadrant score of 1581.... the stock 800m gave me 1261,,,, big difference in how the nook feels and responds , good work...
Edit: just ran 3 more times and got 1700+ every time !

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Nice work.
1.1 is working great on my Nook.

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Working perfectly for me so far. Thank you!
(1.1)
Sent from my NOOKcolor using XDA Premium App

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mutant13 said:
thanks,,,, will give it a try,,, 1.1 g gives me a quadrant score of 1581.... the stock 800m gave me 1261,,,, big difference in how the nook feels and responds , good work...
Click to expand...
Click to collapse
i'v got 1900+

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sugwacee said:
i'v got 1900+
Click to expand...
Click to collapse
was that with 1.1g ? or 1.2g?

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1.16GHz.
my NC will crash at 1.2G(if no volt tuned up, same as the Dalingrin' Eclair OC kernel. i prefer batterylife first,so i locked it at 1.16G, with stock volt level), fine enough, youku(sth. in China like youtube ) acts perfect.
here is the pic i post to another bbs
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

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so far so good. no bluetooth i guess? pardon my noobiness.

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Excellent! Been waiting for this OC kernel. Tested 1.2Ghz (unstable) and 1.1ghz(stable) on dual boot partition running BN 1.2... it would be great to see interactive governance profile enabled and a working BT inject! It is noticeable speedier with the OC kernel.. might be replacing my Nookie Froyo with this setup.

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What's the purpose for the 800M zip? To get the new features?
Any issues with wifi?

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fpga_guy said:
What's the purpose for the 800M zip? To get the new features?
Any issues with wifi?
Click to expand...
Click to collapse
if you have a problem and need to return to stock....wifi still works great 1.1g is perfect, 1.2g made me crash.... hope that helps

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Great work, have been waiting for this since I rooted 1.2 and all I need now is a little speed boost. Keep it up.

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Nice work! Using the 1.1GHz kernel and my NC went from 1300+ Quadrant scores to 1800+. So far I've seen no issues!

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fpga_guy said:
What's the purpose for the 800M zip? To get the new features?
Any issues with wifi?
Click to expand...
Click to collapse
incase that someone's NC is unstable with both 1.1g and 1.2g, for restoring

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how's the battery life?
My stock rooted 800M is pretty decent: 6+ days with 1 hour of usage each day.
Undervolting with 1.1g in the best case could be a wash in terms of battery life?

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Mine is unstable at 1.2G but 1.1G works great. Thank you very much. Now only if I can get rid of this youtube not working on my rooted Nook 1.2

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fpga_guy said:
My stock rooted 800M is pretty decent: 6+ days with 1 hour of usage each day.
Undervolting with 1.1g in the best case could be a wash in terms of battery life?
Click to expand...
Click to collapse
not very sure. you can check the battery life.
a few days later, i will do some clean up and release a new version(which is much stabler,with most of stuffs i mentioned), that one would to be the same as stock one(i mean battery life performance)

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bugs with youtube?
I noticed that the only two members having problems with youtube have also overclocked the NC: ehcan and HTCF4N.
Coincidence? I am at BN1.2 with MN4.5.2 and have not OC. Youtube works fine.

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I have 1.1 OC. Youtube is perfect.
Sent from my SAMSUNG-SGH-I897 using XDA App

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fpga_guy said:
I noticed that the only two members having problems with youtube have also overclocked the NC: ehcan and HTCF4N.
Coincidence? I am at BN1.2 with MN4.5.2 and have not OC. Youtube works fine.
Click to expand...
Click to collapse
maybe sth. to do with dsp volt, i guess, same as the H.264 issue i mentioned at first post.
fix it later.
curiously, i remember the h.264 issue apear with stock kernel, so maybe sth. wrong with system itself.