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  • [01:42:15] <djlewis> ds2: charging batteries can be down right bornig as well
  • [01:43:05] <Russ> running chkdsk inside qemu on a disk image mounted across sftp is pretty boring cool
  • [01:43:07] <Russ> er, too
  • [01:43:11] <Russ> but, its still cool
  • [01:45:19] <ds2> there can be moments of excitement
  • [01:45:39] <Russ> like when it switches from stage 2 of 5, to stage 3 of 5
  • [01:46:15] <ds2> well, more then that
  • [01:46:30] <ds2> usually comes with noise and visual effects too
  • [01:46:43] <Russ> I must have the boring version of chkdsk
  • [01:47:19] <ds2> helps to have virii in the system commanding your former HD's head to play as if it was a precussion instrument
  • [01:47:24] <Russ> my wife's harddrive was on the way out on her laptop, so I dd'd it to an external USB drive
  • [01:47:38] <Russ> friggin' thing wouldn't boot because windows 7 doesn't like booting from USB
  • [01:47:55] <ds2> file a bug with the windows 7 maintainers
  • [01:48:04] <Russ> so now I have to resize it to fit it onto a smaller drive I have around that will fit in the laptop
  • [01:48:06] <ds2> then submit a patch for the windows 7 upstream to comment on
  • [01:48:27] <Russ> but of course ntfsresize needs chkdsk to be run...which is a bit difficult to do on an image
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  • [02:04:11] <joelagnel> Russ: isn't there a way to mark ntfs as clean, without having to do a chkdsk? :)
  • [02:05:48] <joelagnel> Russ: oh I see, the resize tool does it
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  • [02:56:28] <Nico_Liu> Hi, I got an Angstrom image SDK, but I found that in the /usr/local/angstrom/arm/arm-linux-gnueabi/usr/lib directory, there're a lot of shared-library as libQtCore.so, libQtCoreE.so, where is the difference between both two lib
  • [02:56:47] <Russ> one is for qte (qt embedded) probably
  • [02:57:05] <Russ> qte runs on framebuffer, qt-linux runs on x11
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  • [02:58:02] <ds2> Hmmm
  • [02:58:04] <Nico_Liu> ok, if I want to generate the makefile for x11, I need use the qmake or qmake2 in the Angstrom SDK
  • [02:58:11] <ds2> I wonder how long would a 3000F capacitor power a beagle
  • [02:58:46] <Russ> ds2, depends on how high a voltage you were willing to step down from
  • [02:58:56] <Russ> 15kV?
  • [02:59:37] <ds2> these parts are 2.7V rated so it'd require 2 in series
  • [02:59:46] <ds2> charge 'em up to about 5.5V
  • [02:59:53] <ds2> 5.0V
  • [03:00:04] <Russ> ds2, that'd be no good
  • [03:00:25] <Russ> ds2, you'd want a step-up, since the voltage will range from 0V to 2.7V over the discharge profile
  • [03:00:56] <Russ> also, I'd think that the leakage current of a 3000F device would be so large, that the actual consumption of the beageboard wouldn't really matter
  • [03:00:59] <ds2> not if I run 2 of them in a series
  • [03:01:15] <ds2> and just take power from 5.0 down to 4.2
  • [03:01:21] <Russ> you still need to get them as close to 0V as possible to g et all the energy out
  • [03:01:38] <ds2> is energy 1/CV?
  • [03:01:43] <ds2> my physics is rusty
  • [03:01:58] <Russ> 1/2(VQ)
  • [03:02:12] <ds2> as in 0.5 * (V * Q)?
  • [03:02:16] <Russ> right
  • [03:03:01] <ds2> so that means I am looking at 0.5 * integral(5, 4.2, 0.5*(V*Q) dV) Joules?
  • [03:03:23] <ds2> that can't be right.. Q is changing too
  • [03:03:56] <Nico_Liu> <Russ>, if I want to generate the makefile for x11, do I need to use the qmake or qmake2?
  • [03:04:14] <Russ> Nico_Liu, I don't know, run qmake and see what kind of makefile it generates
  • [03:04:25] <Nico_Liu> ok, thanks
  • [03:05:19] <ds2> V*I*t or V * V * t / R or (V^2)*t/R
  • [03:05:25] <Russ> ds2, nevermind the math, where are you finding 3000F capacitors?
  • [03:05:41] <ds2> Russ: electronics gold mine out by you
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  • [03:05:59] <Russ> what is their leakage rate?
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  • [03:06:14] <ds2> they don't say...original market was for electric cars
  • [03:06:53] <Russ> because "ultra-capacitors" apparently have a "high self-discharge"
  • [03:07:06] <Russ> so I think you'd first just want to find out how long it takes to self discharge
  • [03:07:20] <ds2> this is not your typical supercap
  • [03:07:27] <ds2> supercaps seems to top out at 10F
  • [03:07:34] <Russ> right, ultracap
  • [03:07:38] <Russ> http://en.wikipedia.org/wiki/Ultracapacitor
  • [03:08:10] <Russ> I suppose just charge the sucker and log dV/dt
  • [03:09:26] <ds2> yeah, that's probally best
  • [03:12:07] <Russ> if you want something to power a beagleboard for a long time, I think you'd want zinc-air
  • [03:18:13] <djlewis> ds2: get yourself one of those vulgar shaky flashlights and wire it to your beagleboard
  • [03:19:18] <ds2> djlewis: if you only knew what I know about that...
  • [03:20:56] <ds2> the point isn't to power the beagle for a long time... the point is finding a good use for 3000F's of capacity
  • [03:21:19] <Russ> oh....hmmm
  • [03:22:47] <Russ> figure out the self discharge rate, and that will take you a long way towards figuring out a use
  • [03:22:58] <djlewis> 3000F of, say, 150wv could be exciting to play hot potato with
  • [03:23:12] <Russ> if you have a time of use electrical plan, they might be useful for storing energy during off-peak and using it during on peak
  • [03:23:27] <Russ> oh, yes, and like djlewis said, making things go boom
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  • [03:23:34] <Russ> I think you can shrink coins with that
  • [03:24:07] <ds2> I forgot about shrinking coins
  • [03:24:27] <ds2> I know how to power a beagle for a long time
  • [03:24:53] <ds2> screwing with ToU services would be cute
  • [03:29:51] <Russ> http://www.capturedlightning.com/frames/shrinkergallery.html
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  • [04:59:13] <Nico_Liu> I used 'opkg-target install qmake2' to install the qmake2 for Angstrom SDK, but when I excute 'qmake2', it says "bash: /usr/local/angstrom/arm/arm-angstrom-linux-gnueabi/usr/bin/qmake2??????????????????????????????"
  • [04:59:23] <Nico_Liu> How to solve this?
  • [05:00:25] <housel> (That's "Can't execute binary file" for those who don't read Chinese)
  • [05:00:29] <Russ> it looks like you are running the target version of qmake
  • [05:01:31] <housel> you want to install the native qmake, not the target one
  • [05:01:52] <Nico_Liu> yes, how to install the native qmake
  • [05:02:10] <_av500_> opkg install....
  • [05:02:36] <_av500_> opkg update before
  • [05:03:02] <Russ> I'm not sure what you expected to get after asking for opkg-target install qmake2
  • [05:03:44] <Nico_Liu> I want to generate the Makefile for Angstrom SDK in my host PC
  • [05:04:24] <Russ> perhaps you've missed the nuances of the words "host" and "target"
  • [05:04:40] <Nico_Liu> <_av500_>, what you said is to install the qmake in the target board, right?
  • [05:05:07] <Russ> if you install a binary compiled for target, it will only run on target
  • [05:05:19] <Russ> (where target here is arm-angstrom-linux-gnueabi)
  • [05:07:14] <Nico_Liu> Now, I have some of *.cpp and *.h files, I want to generate a Makefile to make a binary file which runs on the target, how should I do?
  • [05:07:44] <Russ> you want qmake for host
  • [05:07:54] <Russ> host is the machine you are doing compiling on
  • [05:08:20] <Nico_Liu> yes
  • [05:10:31] <Russ> so just do what _av500_ said
  • [05:11:18] <Nico_Liu> opkg install .... , what's the '....' here?
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  • [06:31:26] <Nico_Liu> <Russ>, you said that target is arm-angstrom-linux-gnueabi, is that means '/usr/local/angstrom/arm/arm-linux-gnueabi' installed on my host PC?
  • [06:31:35] <Nico_Liu> H
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  • [06:46:06] <ormvegr> does anyone know how to change the aspect ratio for liguidwares version of angstrom on beagleboard vc3
  • [06:46:31] <ormvegr> 1280x1024
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  • [07:06:19] <hitlin37> http://news.discovery.com/autos/steering-wheel-interface-driving-110606.html
  • [07:06:45] <av500> lo
  • [07:06:46] <av500> l
  • [07:07:05] <av500> ...The team envisions a touch surface thin enough to break to allow an airbag to deploy. ...
  • [07:07:23] <av500> face torn to shreds by gorilla glass - iCar owner sues
  • [07:07:51] <hitlin37> ;)
  • [07:07:52] <av500> but in fact, the airbag could by just an app on this....
  • [07:08:06] <av500> Ding, you got airbag!
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  • [07:19:06] <Nico_Liu> how to cross-compile the qt code for Angstrom image?
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  • [07:23:13] <Nico_Liu> how to cross-compile qt code for Angstrom image?
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  • [07:42:08] <koen> av500: $200 for a snowball SDK!?!?
  • [07:42:18] * aarti (~aarti@122.166.11.13) has joined #beagle
  • [07:42:19] <av500> no
  • [07:42:20] <av500> less
  • [07:42:25] <av500> that was the old price
  • [07:42:41] <koen> joelagnel: you'll notice DMAI needs a ton of "unbreak me" type of parameters
  • [07:42:51] <koen> "Date: 2011-03-31"
  • [07:43:14] <koen> heh
  • [07:43:18] <koen> BloG
  • [07:43:33] <koen> with a capital at the end it must really be community
  • [07:45:02] <av500> koen: its like 149+VAT
  • [07:45:06] <av500> +shipping
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  • [08:11:07] <koen> av500: still, it's ???????????? for an sdk
  • [08:13:57] <av500> ???
  • [08:14:02] <av500> koen: the SDK is hardware
  • [08:14:42] <mru> hardware compiler?
  • [08:14:59] <av500> they call their snowball thing "SDK"
  • [08:15:11] <av500> and "PDK" if they solder the DB9 and the expansion connectors
  • [08:15:17] <mru> lol
  • [08:15:38] <av500> the SDK is subsidised afaik
  • [08:15:53] <av500> thee PDK is full price for people to incoporate into their designs
  • [08:16:25] <av500> but both come with the full community of precompiled ubtuntu and android images... :)
  • [08:28:15] <koen> av500: it mentions software in that presentation you sent me
  • [08:29:28] <koen> but that presentation is already provably wrong in other locations
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  • [08:32:45] <av500> koen, yes, SDK confused me at start too :)
  • [08:33:07] <mru> koen: what presentation isn't
  • [08:33:23] <av500> snowball, igloo and SDK/PDK....
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  • [08:42:44] <ZeZu> someone save my sanity @ 4:30AM ... please tell me i'm not crazy and this disassembled code is ^^&*(($ or hopefully the disassembler is screwed up : http://pastie.org/2100409
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  • [08:48:13] <ZeZu> That LDM is RFE style (PC bit in reglist hardwired to 1 and another zero bit in opc-ext) and its not in exception handler code unless i seriously wrote some nice bugs
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  • [09:03:50] <ZeZu> Sleep is the only answer... i'm off
  • [09:06:42] <juhka> A question for you more experienced guys, I've just started reading TRM for BB and OMAP3530. I will try to connect a external codec (http://focus.ti.com/lit/ds/symlink/tlv320aic31.pdf) to one of the McBSP ports of the BB. The pin routings will be: Din->McBSPi_DX, Dout->McBSPi_DR, Wclk->McBSPi_FSX, Bclk->McBSPi_CLKX. Will it work quite roughly said straight out of box with some pinmux settings, or will there be alot of programming incl
  • [09:06:52] <juhka> Just trying to measure some working effort
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  • [09:10:11] <koen> if you want to use it in linux, you'll need some ASoC glue
  • [09:13:33] <juhka> i.e driver?
  • [09:13:41] <av500> yes
  • [09:13:55] <av500> most likely there will be one already that needs to be hammerd in a bit
  • [09:13:58] <av500> in->on
  • [09:14:33] <juhka> Seen the omap-mcbsp.c and mcbsp.c, i guess you mean these?
  • [09:14:49] <av500> no
  • [09:14:53] <av500> these are the low level drivers
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  • [09:15:11] <koen> technically ASoC glue sits between the drivers of the SoC and the codec
  • [09:15:49] <juhka> okey, are there any default ones located somewhere in the linux OS?
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  • [09:16:41] <koen> have a look at the source for the kernel you are planning to use
  • [09:17:10] <juhka> It's propably going to be Angstrom in the end
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  • [09:18:34] <juhka> If there is any good reading about similiar code I need to write, please point me to it
  • [09:19:00] <juhka> or manuals etc
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  • [10:04:56] <Azad> Hi, which is the best transitor suitable for pre amplifion of audio input on Beagle board?
  • [10:05:58] * av500 prefers ECC83
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  • [10:06:37] <av500> 12AX7 stateside
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  • [10:23:28] <aggh> Hello
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  • [10:23:56] <aggh> Can anyone tell me why i keep getting superblock errors on SDHC cards when partitioning
  • [10:24:25] <av500> because you are maybe doing it worng?
  • [10:24:52] <aggh> well its via the script on the bealde wiki
  • [10:24:55] <aggh> the ubuntu one
  • [10:25:08] <av500> no idea then
  • [10:25:10] <av500> pastebin a log
  • [10:25:11] <aggh> having said that i had the peoblem when doing it manually also
  • [10:26:09] <aggh> http://pastebin.com/iSzr8ikZ
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  • [10:26:43] <aggh> only ever on the second partition
  • [10:26:55] <aggh> no issues when just one full drive
  • [10:27:26] <av500> well, there is no 2nd partition
  • [10:27:31] <av500> [331262.692652] sdd: sdd1
  • [10:27:48] <aggh> when i create it manuall using Gparted
  • [10:28:36] <aggh> The first partition (boot, FAT) is fine
  • [10:28:45] <aggh> andthing added after that has superblock issues
  • [10:29:12] <aggh> had it on 3 different SDHC cards now
  • [10:29:28] <aggh> different makes and suppliers so its something on my end
  • [10:30:04] <aggh> Could it be a size thing ? Its works fine on the 4Gig card i had not on 8 or 32
  • [10:30:13] * koen uses the angstrom script Xora wrote, which works
  • [10:32:11] <juhka> av500, i saw that you've been using a codec in the same series back in the days: http://www.beagleboard.org/irclogs/index.php?date=2009-03-06
  • [10:32:38] <av500> juhka: I deny everything!!
  • [10:33:35] <juhka> <AV500> well, the codec is OK, we used it in the past
  • [10:33:35] <juhka> ;)
  • [10:33:57] <av500> remind me which one?
  • [10:33:59] <av500> aic23?
  • [10:34:03] <juhka> yepp
  • [10:34:25] <juhka> worked fine?
  • [10:34:29] <av500> yes, that was in pre-linux times here, so I cant point you to a driver
  • [10:35:50] <juhka> why does this guy make it sound so easy: http://www.spinics.net/lists/linux-omap/msg52337.html
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  • [10:35:59] <juhka> maybe there is a whole lot of junk between?
  • [10:36:43] <juhka> at least for mcbsp1
  • [10:36:56] <av500> no idea
  • [10:37:18] <av500> I pass such stuff to our kernel guys :)
  • [10:39:24] <juhka> I don't like the kernel :(
  • [10:39:36] <juhka> So i understand you fully
  • [10:41:36] <juhka> But okay, can you explain a bit detailed what the ASoC glue is for? Is it for adapting the OMAP Communication between the specific codec or what?
  • [10:41:46] <juhka> Then it would make sence to me
  • [10:41:54] <av500> afaik, asoc glues high level alsa to the SOC
  • [10:43:04] <juhka> SoC (System on Chip yes), defined as the TLV320 in my case?
  • [10:43:10] <av500> no
  • [10:43:15] <av500> SOC as in omap3
  • [10:43:29] <av500> but in your case, omap3 with external codec
  • [10:44:12] <juhka> Okay, i guess this ASoC glue also makes my McBSPi ports talk to ALSA
  • [10:45:05] <juhka> or am I getting way out of the box?
  • [10:45:30] <av500> yes
  • [10:46:33] * juhka scratches his head and wonders if he couldn't use alot of the functionallity written for McBSP2
  • [10:47:30] <av500> juhka: but there is already AIC23 support in the kernel
  • [10:47:35] <av500> all you need is to glue it
  • [10:47:52] <av500> linux/sound/soc/codecs/tlv320aic23.c
  • [10:49:52] <juhka> i have the tlv320aic31
  • [10:50:00] <juhka> but i guess it should be very similiar
  • [10:50:01] <av500> ah
  • [10:50:17] <av500> juhka: the 31 is the totally broken one
  • [10:50:22] <av500> (unless they fixed it)
  • [10:50:39] <juhka> oh f....
  • [10:50:46] <juhka> then im a bit screwed
  • [10:50:54] <av500> well, my info is like 3ys old
  • [10:50:57] <av500> maybe its fixed
  • [10:51:05] <av500> but back then, it could not output 0
  • [10:51:23] <av500> if you have a low volume signal around 0, it would output a lot of noise
  • [10:51:38] <av500> our fix was to add like a fixed offset of 100 to every sample
  • [10:51:43] <juhka> at least it's "true" all the time :)
  • [10:52:07] <av500> something was very broken in the zero crossing of the codec
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  • [10:52:49] <juhka> so you've worked with the 31?
  • [10:52:59] <av500> yes
  • [10:54:08] <juhka> I need to consult another guy at work about this problem
  • [10:54:13] <av500> here: http://pastebin.com/mcPfNcN1
  • [10:54:20] <juhka> I think it can be quite critical in our case
  • [10:55:08] <juhka> This code makes the fixed offset?
  • [10:55:26] <av500> indeed
  • [10:55:42] <av500> it shifts the 0 line away from 0 :)
  • [10:55:50] <juhka> very kind of you, thanks!
  • [10:56:01] <av500> juhka: check with TI if that is fixed...
  • [10:56:29] <juhka> I really will
  • [10:56:34] <av500> of course they will deny everything...
  • [10:57:07] * mazzanet_ is now known as mazzanet
  • [10:57:11] <mdp> av500, any idea if other 3x parts have the same issue?
  • [10:57:21] <av500> no
  • [10:57:38] <av500> i think we stopped ti codecs after that one :)
  • [10:57:41] <juhka> Wouldn't surprise me, of course you say that your own product is perfect ;)
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  • [10:58:08] <av500> mdp: and the non-codec in the TWL is another story...
  • [10:58:14] <av500> but we did not use it...
  • [10:58:23] * ricky_ is now known as Guest2630
  • [10:58:27] <mdp> ok, was just thinking maybe the n810 folks ran into it on the 33
  • [10:58:32] <mdp> or not
  • [10:58:36] <mdp> heh
  • [10:58:47] <av500> mdp: 31 and 33 could be 2 totally different designs
  • [10:59:01] <juhka> but the linux/sound/soc/codecs/tlv320aic23.c should quite easily be adapted to the 31, i guess?
  • [10:59:17] <mdp> av500, sure
  • [10:59:29] <av500> juhka: why not use tlv320aic3x.c
  • [10:59:57] <juhka> Seriously, is every codec adapted into linux allready?
  • [10:59:59] <mdp> av500, I've never been near a TI codec in a design until now???totally out of my normal realm
  • [11:00:26] <av500> juhka: for a certain amount of "every"
  • [11:01:07] <juhka> hehe, but seems like many
  • [11:01:16] <mdp> juhka, it's up to you to decide if you have something that's production ready there :)
  • [11:01:54] <juhka> mdp, yeah of course ;)
  • [11:02:38] <mdp> everything I touched was wolfson codecs, and they were in decent shape for our use
  • [11:03:02] <av500> yep
  • [11:05:15] <juhka> I guess the glueing part is to "map" the McBSPi ports to ALSA in the linux/sound/soc/codecs/tlv320aic3x.c
  • [11:06:10] <juhka> or more like OMAP3
  • [11:07:45] * ormvegr (~adam@c-67-169-246-114.hsd1.ut.comcast.net) Quit (Quit: Ex-Chat)
  • [11:08:16] <mdp> linux/sound/soc/omap/*
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  • [11:09:18] <juhka> mdp, need some "glueing" there also?
  • [11:09:42] <mdp> for your board design, yes
  • [11:10:00] <mdp> see the examples
  • [11:10:10] <juhka> where are they located?
  • [11:10:17] <mdp> that's your glue
  • [11:11:00] <mdp> omap3beagle.c, for example
  • [11:11:20] <juhka> i've been there, that's where the wirings are etc? righty?
  • [11:11:24] <juhka> muxing and so on
  • [11:11:53] <mdp> yes
  • [11:12:01] <juhka> that part is clear :)
  • [11:12:26] <juhka> I'm just a bit confused what needs to be glued in the codec part
  • [11:12:39] <juhka> cause the data and clock signals are "glued" in the omap3beagle.c
  • [11:12:56] <mdp> in a good piece of silicon and a working codec driver...nothing
  • [11:13:25] * mudkip (82e9c20b@gateway/web/freenode/ip.130.233.194.11) Quit (Quit: Page closed)
  • [11:14:05] <mdp> as av500 pointed out, ymmv with the codec you have
  • [11:14:30] <juhka> ymmv?
  • [11:14:47] <mdp> your mileage may vary
  • [11:15:11] <juhka> ok :) I'm stuck with the TLV320AIC31
  • [11:15:14] <mdp> ykmv, maybe, for .eu
  • [11:15:17] <mdp> :)
  • [11:15:20] <koen> does anyone in the us actually care about mileage?
  • [11:15:43] <mdp> koen, some people???.those people leave more gas for me
  • [11:15:49] <koen> :)
  • [11:16:10] <koen> mdp: still liking your red devil?
  • [11:16:13] <mdp> I stole that from a friend that owns some exotic cars
  • [11:16:30] <mdp> koen, omg???I'm like a teenager again :)
  • [11:16:53] <koen> mdp: does it still have leafsprings in the back?
  • [11:17:05] <juhka> To make a long story short: If there is a linux/sound/soc/codecs/tlv320aic31.c it should work quite atraight out of the box if i glue the omap3beagle.c?
  • [11:17:48] <mdp> koen, LOL???no. that's one of the many things that have changed in this second era of muscle cars
  • [11:18:04] <mdp> koen, the other is getting 23.5MPG out of a 6.4L engine
  • [11:19:44] <juhka> Nothing's greater than a 60's Fastback Mustang ;)
  • [11:20:13] <juhka> great stuff
  • [11:20:42] <juhka> mdp, am i wrong regarding the glueing stuff?
  • [11:21:06] <mdp> koen, http://bit.ly/iECk6f
  • [11:21:43] <juhka> that's a beauty
  • [11:22:41] <mdp> juhka, in a perfect world, yes, that's how it works???the concept of asoc is to define a controller side driver and a codec side driver???in between is some board-specific glue to mate them
  • [11:23:59] <mdp> it's what people used to do within their soc drivers to a degree in the "bad old days"..and then duplicate code for the codecs..or just support one from the eval board
  • [11:24:36] <juhka> okey, now I think i'm getting the grasp of it :) these "linux/sound/soc/codecs/*" will be the board-specific glue?
  • [11:24:45] <juhka> or at least a part of it
  • [11:25:06] <mdp> linux/sound/soc/omap/yourboard.c is your board-specific glue.
  • [11:25:21] <mdp> most likely derived from something like omap3beagle.c like others in there
  • [11:25:53] <mdp> you see it specifies what mcbsp channel to use for the asoc dai, what codec driver to expect to find???various design specific controls...etc
  • [11:26:32] <juhka> okey :) i think i got it then
  • [11:26:48] <juhka> Huge thanks for taking your time explaining
  • [11:30:36] <mdp> juhka, np, take a look at the somewhat stale wiki page that has some more details: http://www.alsa-project.org/main/index.php/ASoC
  • [11:31:13] * balestrino (~balestrin@illegal-use-181-112.dimnp.unipi.it) Quit (Read error: Operation timed out)
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  • [11:34:32] <juhka> okay, will do :)
  • [11:37:59] <mdp> heh, I was just looking at the 3x.c driver and noting, as usual, the author isn't a TIer
  • [11:38:34] <mdp> koen, vbarinov wrote it while at EA :)
  • [11:39:12] <koen> :)
  • [11:39:36] * koen needs to get lunch/coffee before texas wakes up and calls start
  • [11:40:03] <mdp> apparently there were too many projects cause I can't think of a design that used a TI codec from then.
  • [11:40:42] * ericb2 (~X@unaffiliated/ericb2) Quit (Quit: Success !!)
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  • [11:47:13] <juhka> This is a whole new area of experience for me, currently doing my thesis work at university, which is to be finished in late september. I've been worried of to much work writing all code to get everything working, but if it's all glueing for my specific codec, a whole lot of weight has been carried of my shoulders
  • [11:50:17] * rcranetx (~rcranetx@nat/ti/x-cqvkcovnbwzsxxwf) has joined #beagle
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  • [12:02:00] <koen> mru: stupid question: if I build omapfbplay against a recent libav, will I get MT decoding on panda for h264?
  • [12:02:20] <mru> probably not, unfortunately
  • [12:02:40] <mru> I need to do something about that
  • [12:02:46] * koen moves "update libav" a bit down on the TODO list
  • [12:02:55] <mru> thanks for the reminder
  • [12:02:59] <koen> :)
  • [12:03:10] <mru> once I'm done with this moving ordeal I should have time to do such things
  • [12:03:16] * av500 throws some av_dict at mru
  • [12:03:30] * coppice (~coppice@m121-202-59-145.smartone-vodafone.com) has joined #beagleboard
  • [12:03:37] * katier2 (~katierh@nat/ti/x-nquvylocgkxgsgrq) has joined #beagle
  • [12:03:43] * mru av_ducks
  • [12:03:53] <av500> mru: ordeal? pics or it did not happen....
  • [12:04:00] <av500> mru: try av_move
  • [12:04:06] <mru> now I must go back to the old flat and pack up the remaining junk before tomorrow
  • [12:04:57] * coppice (~coppice@m121-202-59-145.smartone-vodafone.com) has joined #beagle
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  • [12:30:27] <Crofton|work> ok, time to travel again
  • [12:30:37] <Crofton|work> stupid 4 hour layover in Philly
  • [12:30:54] <Crofton|work> better than under 1 hour connteciont for international flight though
  • [12:31:01] <Crofton|work> see you in philly, if the wifi works
  • [12:31:08] <Crofton|work> and I need to work on my slides ...
  • [12:31:32] * jpirko (~jirka@nat/redhat/x-iydaddyerajekdjm) has joined #beagle
  • [12:31:32] * aarti (~aarti@122.166.11.13) Quit (Read error: Connection reset by peer)
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  • [12:34:48] * koen usually ends up drinking beer instead of workin on slides at conferences
  • [12:35:04] * ogra_ (~ogra@p5098ed03.dip0.t-ipconnect.de) Quit (Ping timeout: 244 seconds)
  • [12:35:31] <koen> which backfired last time since my laptop crashed during the presentation
  • [12:35:41] <koen> on a related note, don't use windows on a laptop
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  • [12:41:47] <rOxx> Hi, i have downloaded the mainline u-boot files and configured there some pins for SPI3, SPI4, GPIO in the beagle.h file.... now i want to rebuild u-boot without open embedded. but i have no idea. anybody can help me ?
  • [12:42:51] <koen> make a recipe for in and use OE
  • [12:43:06] <koen> since you have no idea on how to crosscompile
  • [12:44:30] * Azad (~Azad@122.166.11.13) Quit (Read error: Connection reset by peer)
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  • [12:47:28] <rOxx> koen, i can crosscompile in my vm, can you tell me what is must do to get the *.bin file?
  • [12:48:26] <koen> bitbake my-u-boot-rename
  • [12:53:46] * woglinde (~henning@fb-n15-11.unbelievable-machine.net) has joined #beagle
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  • [13:06:34] <rOxx> koen, in my vm i have the gcc (Ubuntu/Linaro 4.4.4-14ubuntu5) 4.4.5 compiler installed. what is must do now to compile the sources to a bin file ?
  • [13:06:53] * Openfree^ (~Openfree`@58.37.74.22) has joined #beagle
  • [13:06:58] <rOxx> or have you got some links for me ?
  • [13:07:26] <av500> 4.4.4-14ubuntu5...
  • [13:07:39] <av500> ZZ9 Plural Z Alpha ftw!
  • [13:09:33] <rOxx> hehe, i just copied the gcc --info :-)
  • [13:09:35] * digitalconverge (~converged@c-76-125-16-248.hsd1.ga.comcast.net) Quit (Ping timeout: 250 seconds)
  • [13:10:10] <av500> given how 4 is an unlucky number, I would totally not trust that compile
  • [13:10:12] <av500> +r
  • [13:14:34] <woglinde> roxxx did you ever compile something?
  • [13:14:36] <juhka> where is the omap3beagle.c located on the board? searched for quite a while now, if it's even there?
  • [13:14:53] <woglinde> ?
  • [13:14:56] <woglinde> u-boot?
  • [13:16:05] <juhka> linux/sound/soc/omap/omap3beagle.c
  • [13:16:10] <juhka> so this is in u-boot?
  • [13:16:18] <juhka> not sound
  • [13:16:20] <rOxx> yes i have compiled, but u-boot the first time.
  • [13:16:30] <juhka> argh.. wrong link... but yes anyway, need to find the linux root
  • [13:17:10] <juhka> Linux/arch/arm/mach-omap2/board-omap3beagle.c
  • [13:17:25] <woglinde> ?
  • [13:17:32] <av500> juhka: yes
  • [13:18:09] * kevinsc (~a0214685@nat/ti/x-wssiwjabzzqehgkp) has joined #beagle
  • [13:19:51] <juhka> so i should find a c-file in the u-boot? Sounds very strange to me
  • [13:20:26] <av500> uboot?
  • [13:21:21] <juhka> or where is these files i need to glue located
  • [13:21:33] <av500> arch/arm/mach-omap2/board-omap3beagle.c no?
  • [13:21:45] <woglinde> o.O
  • [13:21:50] <juhka> cannot find the arch =/
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  • [13:23:42] <juhka> ok found it under lib
  • [13:23:55] <av500> lib?
  • [13:23:58] <woglinde> wtf?
  • [13:24:46] <juhka> or not... i found an /lib/kernel/modules/2.6../arch/arm
  • [13:24:51] <juhka> but it was nothing there
  • [13:25:30] <av500> juhka: kernel source code
  • [13:28:10] <mdp> juhka, you don't see sound/soc/omap/omap3beagle.c?
  • [13:28:29] <woglinde> hm I dont think he wants sound
  • [13:29:20] <mdp> drivers/glue/ :)
  • [13:29:20] <av500> woglinde: he does
  • [13:29:29] <juhka> woglinde i need them both :)
  • [13:29:34] <av500> there is also "man find"
  • [13:29:36] <juhka> mdp no cannot see it
  • [13:30:12] <mdp> hrm, must be an old kernel tree???I'm looking at it in linus git
  • [13:30:39] <mla> Linux/sound/soc... then, since your kernel source seemed to be located under "Linux".. ? (sorry if I confuse more than I help)
  • [13:31:51] <juhka> Where are these to be found, shouldn't they be located on my beagle somewhere (stupid question yes?), I've also searched in the ??ngstr??m source
  • [13:32:11] <juhka> Maybe i get slapped now :) but i'm tired
  • [13:32:20] <woglinde> you need to find out which kernel source you want to use
  • [13:33:12] <av500> juhka: why would you have source code on your beagle?
  • [13:33:31] <mdp> it's running ubuntu? :)
  • [13:33:46] * panto (~panto@vfppp062038104093.dsl.hol.gr) has joined #beagle
  • [13:34:15] <juhka> av500, no idea actually :)
  • [13:34:28] <juhka> mdp, nope angstrom :)
  • [13:34:41] <juhka> But yes, of course i need to build my own kernel i guess
  • [13:35:07] <juhka> when modified and glued
  • [13:35:12] <woglinde> juhka why should the kernel source be on your beagle?
  • [13:35:19] <woglinde> did you install a source ipk?
  • [13:36:21] <juhka> woglinde, no i didn't
  • [13:36:32] <woglinde> fine
  • [13:36:56] <mdp> juhka, the angstrom site has documentation that will help you to get the build environment setup and grab the source on your host system
  • [13:37:15] <mdp> juhka, you can then get the kernel source and set of patches used from there as the basis for your work
  • [13:37:33] <woglinde> so Captain Obvious tells you dont have omap3beagle.c on your board
  • [13:37:47] * kimitake_idle is now known as kimitake
  • [13:38:01] <juhka> mdp allright, thanks :)
  • [13:38:12] <juhka> woglinde, I ain't no sherlock ;)
  • [13:39:01] <juhka> Actually never digged into Linux before, just done work on the surface before
  • [13:39:09] * raster (~raster@enlightenment/developer/raster) Quit (Quit: Gettin' stinky!)
  • [13:39:36] <woglinde> aye than good lucj
  • [13:39:38] <woglinde> ups luck
  • [13:40:04] <av500> yes, ups needs luck
  • [13:40:56] <woglinde> ooops
  • [13:41:39] <juhka> well, thanks for all the help guys, really appreciated :)
  • [13:42:16] <mdp> your invoice is in snail mail
  • [13:43:47] <mdp> koen: link to discussion on tftp ehci timeout?
  • [13:44:09] * juhka is waiting for it eagerly
  • [13:44:22] <woglinde> wait for what?
  • [13:44:24] <woglinde> santa?
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  • [13:45:24] <juhka> no, the late easterbunny that never came
  • [13:45:41] <juhka> ;)
  • [13:46:00] <mdp> ask for shoespoons, they make a great gift
  • [13:48:34] <av500> joelagnel: dmai works now?
  • [13:49:01] * joelagnel (~joelagnel@cpe-76-184-244-226.tx.res.rr.com) Quit (Ping timeout: 240 seconds)
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  • [13:51:58] <juhka> mdp, found this http://www.kernel.org/pub//scm/linux/kernel/git/jejb/storage-tree/sound/soc/omap/omap3beagle.c
  • [13:52:05] <juhka> guess it's the correct one
  • [13:52:39] <mdp> not the right tree
  • [13:52:52] <mdp> that's bottomly's storage tree
  • [13:53:42] <juhka> allright
  • [13:53:56] <mdp> I really recommend you go read and understand how your angstrom binaries are built???set up the build environment, maybe do a build see where the kernel recipe pulls the kernel blob and patches that are applied
  • [13:54:23] <mdp> there's good docs there for getting started
  • [13:55:20] <juhka> I'll check it out :)
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  • [14:00:14] <koen> mdp: the lan9514 thread
  • [14:00:19] * koen opens browser to find it
  • [14:01:05] <koen> mdp: http://groups.google.com/group/beagleboard/browse_thread/thread/8978231ad77560b6#
  • [14:01:24] <koen> mdp: short summary: build https://github.com/koenkooi/u-boot and try it
  • [14:01:29] * AxMountain (~AxMountai@spaceman.csbnet.se) has joined #beagle
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  • [14:07:52] <speakman> where can I read about the MUX_VAL(CP(XXX_XXX), (IEN | PTD | DIS | M0)) stuff in u-boot/beagle.h?
  • [14:08:11] <juhka> Time to go home, thanks once again for all help! see you!
  • [14:08:25] * juhka (88a32c66@gateway/web/freenode/ip.136.163.44.102) Quit (Quit: Page closed)
  • [14:14:16] * smplman (~speery@64.132.167.18) Quit (Quit: smplman)
  • [14:14:26] <mdp> koen, hrm???I know there have been patches floating around to fix omap ehci issues..I wonder if you are missing those
  • [14:15:25] <mdp> but this is second hand from some mentor guys that had to get boot from MSC device working on ehci a little while back
  • [14:15:27] * Crofton (~balister@66-207-65-47.bark.dmt.ntelos.net) has joined #beagle
  • [14:16:21] <speakman> What's "M0" (Mode 0) when MUXing?
  • [14:16:35] <koen> mdp: there is a possibility that toolchain matters, the kernel (and uboot) had the attribute_packed problem AIUI
  • [14:16:49] <mdp> I see
  • [14:16:49] <koen> it breaks the build with gcc 4.6
  • [14:17:07] <koen> and according to the omap4 folks fixes the perfomance problems on omap4
  • [14:17:16] <koen> but I'll take that with a grain of salt
  • [14:17:44] <jkridner> beagleboard.org visits are up over 20% in June over May.
  • [14:17:56] <av500> jkridner: indian college season
  • [14:17:57] * BThompson (~a0193480@nat/ti/x-ashejkubuyjtcsmd) has joined #beagle
  • [14:18:17] * NishanthMenon (~nmenon@nat/ti/x-dlraxnupviqmlxhl) has joined #beagle
  • [14:18:27] <koen> NishanthMenon has entered the building
  • [14:18:32] <mdp> koen, apparently we now care about this feature for real customers
  • [14:18:43] <NishanthMenon> koen, hi
  • [14:18:47] <koen> I still prefer unreal customers
  • [14:19:13] <speakman> b
  • [14:19:22] <mdp> koen, as opposed to me thinking I might look at it because I want it
  • [14:20:13] <mdp> koen, too many broken things that need looked at :)
  • [14:20:23] <koen> leis
  • [14:20:25] <koen> gah
  • [14:20:27] <koen> lies!
  • [14:20:28] <koen> all lies!
  • [14:20:36] <mdp> I know, I know
  • [14:20:38] <mdp> "impossible"
  • [14:20:39] <buZz> allies!
  • [14:20:48] <koen> mdp: unpossible!
  • [14:22:18] <Crofton> I need to go watch tsa and see what percent of people are getting extra screening
  • [14:22:20] * koen started working 2 hours earlier today and has reached the "I should stop working before people mistake irony for good advice"
  • [14:22:36] <jkridner> http://www.pcworld.com/businesscenter/article/226435/android_chrome_os_and_ubuntu_united_in_one_platform.html is the #1 referrer over the last 2 months.
  • [14:24:37] <av500> yes, what happened to that jumbo? it's so silent...
  • [14:25:28] * brolin (~brolin@nat221.udea.edu.co) has joined #beagle
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  • [14:26:45] <jkridner> dunno. not sure if anyone patched it for xM rev C.
  • [14:26:56] <speakman> please, do anyone know what "M0" to "M7" means while MUXing?
  • [14:27:06] * jkridner wants to see the "rowboat" or "android" checkbox in Narcissus. :-)
  • [14:27:07] * hitlin37 (7838cb3e@gateway/web/freenode/ip.120.56.203.62) has joined #beagle
  • [14:27:38] <av500> jkridner: out of koen's cold, dead hands?
  • [14:27:57] <jkridner> not my preference. :)
  • [14:28:15] <jkridner> It is just a JVM and some kernel patches. :)
  • [14:29:18] <mdp> "it's just software"
  • [14:29:38] * Guest2630 (88a32c66@gateway/web/freenode/ip.136.163.44.102) Quit (Ping timeout: 252 seconds)
  • [14:29:42] <Crofton> https://github.com/vesperix-arm/FFTW-for-ARMv7
  • [14:29:43] <jkridner> koen: did you notice that I ordered a makerbot?
  • [14:29:58] <Crofton> the changes are not in a seperate commit, but it is a start
  • [14:29:59] <koen> jkridner: haven't noticed yet
  • [14:30:07] <Crofton> the work was done in the simd directory
  • [14:30:08] <jkridner> tweeted it.
  • [14:30:10] <av500> Crofton: you are late
  • [14:30:14] <koen> jkridner: no angry emails from your spouse yet :)
  • [14:30:43] <jkridner> actually got permission. just wait until it starts eating all my time.
  • [14:30:53] <Crofton> https://github.com/vesperix-arm/FFTW-for-ARMv7/blob/master/simd/simd-neon.h
  • [14:31:18] * ogra_ (~ogra@p5098ed03.dip0.t-ipconnect.de) Quit (Excess Flood)
  • [14:31:22] <Crofton> speakman, that selects the signal, see the docs
  • [14:31:37] <speakman> Crofton: CPU datasheet?
  • [14:31:48] * ogra_ (~ogra@p5098ed03.dip0.t-ipconnect.de) has joined #beagle
  • [14:31:54] <speakman> can't find any docs, hence my questions :)
  • [14:31:59] <Crofton> there is a doc on the ti site
  • [14:32:03] <Crofton> I forget that exact name
  • [14:32:10] <av500> Crofton: intrinsics?
  • [14:32:13] <Crofton> omap3530.pdf maybe
  • [14:32:15] <Crofton> no
  • [14:32:19] <Crofton> #defines
  • [14:32:30] <Crofton> https://github.com/vesperix-arm/FFTW-for-ARMv7/blob/master/simd/simd-neon.h
  • [14:32:45] <speakman> c
  • [14:32:46] <av500> vmla_f32(vneg_f32(c), b, a)
  • [14:32:49] <speakman> Crofton: which ti site then?
  • [14:32:51] <av500> what do you call that?
  • [14:33:29] <Crofton> hmm, that is
  • [14:33:44] <Crofton> this is the first time I have had tim e to llok at it
  • [14:33:53] <speakman> I'm on 3517 actually, but can't even find it listed anywhere
  • [14:34:40] <av500> speakman: use the 3530 trm
  • [14:35:26] * kevinsc (~a0214685@nat/ti/x-wssiwjabzzqehgkp) Quit (Ping timeout: 240 seconds)
  • [14:35:28] <Crofton> I do not thinnk the trm has pinmux info
  • [14:35:33] <speakman> av500: thnks
  • [14:35:53] <hitlin37> hand written assembly is easier to write than to use complex set of intrinsics
  • [14:36:18] * kevinsc (~a0214685@nat/ti/x-skmabyoaykwhqbon) has joined #beagle
  • [14:39:14] <koen> Crofton: https://github.com/koenkooi/meta-oe/commit/c8de483735fc1e4687dcda2ec7ced514754d2146
  • [14:39:23] <Crofton> later
  • [14:39:24] <Crofton> boarindg
  • [14:39:30] * Crofton (~balister@66-207-65-47.bark.dmt.ntelos.net) Quit (Quit: Leaving)
  • [14:39:56] * mlip|aw is now known as mlip
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  • [14:42:41] <koen> NishanthMenon: the ABB code in 2.6.32-psp was a ??30 line function and a few more lines to call it, would .39 (or 3.0-rc) be a similar effort?
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  • [14:46:23] <speakman> What is "muxing" really?
  • [14:47:12] <av500> telling the little pins what to be
  • [14:47:21] <speakman> ok thanks
  • [14:47:37] <speakman> mux = multiplexing = one pin, many purposes?
  • [14:47:44] <av500> yes
  • [14:47:45] <speakman> oki
  • [14:48:01] * ozk (~ozk@nat/ti/x-ytoenqwblidasfea) has joined #beagle
  • [14:48:10] <koen> or many pins one purpose
  • [14:48:15] <koen> on omap3 it goes both ways
  • [14:49:01] <av500> yes, its half and fpga
  • [14:49:01] <NishanthMenon> koen, hopefully i will have abb in a couple of days for 3.0 kernel
  • [14:49:04] <av500> -d
  • [14:49:12] <NishanthMenon> need it for O4 anyways
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  • [14:49:26] <av500> NishanthMenon: 2.6.3.0?
  • [14:49:35] <NishanthMenon> av500, 3.0-rc3
  • [14:49:36] <NishanthMenon> :D
  • [14:49:37] <koen> NishanthMenon: how come you don't have selective amnesia about ABB?
  • [14:49:45] <av500> abb-a?
  • [14:49:52] <NishanthMenon> koen, i try not to forget :D
  • [14:50:01] <speakman> in u-boot, does all omap board share some initializing?
  • [14:50:07] <koen> NishanthMenon: pretty everyone else in TI claims to not know about it :(
  • [14:50:17] <woglinde> whats abb?
  • [14:50:23] <speakman> seems like my serial port gets initialized but can't find where
  • [14:50:23] <NishanthMenon> koen, not everyone has been bitten as bad as I have been :(
  • [14:50:25] <koen> advanced body bias
  • [14:50:35] <woglinde> clothing?
  • [14:50:39] <NishanthMenon> koen i think it is adaptive
  • [14:50:47] <koen> NishanthMenon: right
  • [14:51:07] <koen> woglinde: it controls the CPU voltage on higher frequencies and can account for temperature and stuff
  • [14:51:20] <NishanthMenon> woglinde, in simple terms additional voltage for mpu in addition to the normal voltage rail allowing the mpu to go higher speeds
  • [14:51:24] <mdp> woglinde, it's when you're biased toward or against a certain human body type
  • [14:51:54] <aggh> Any one know why you would have Superblock errors when partitioning an SDHC card
  • [14:52:02] * l4 (~l4@78-62-153-222.static.zebra.lt) Quit (Ping timeout: 240 seconds)
  • [14:52:20] <woglinde> so old x86 overclocking
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  • [14:52:44] <woglinde> aggh hw defect?
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  • [14:53:01] <aggh> tried with 4 different cards
  • [14:53:05] <aggh> two makes
  • [14:53:05] <NishanthMenon> kinda.. all these crap is all about overclocking at the end of the day.. just that lots of characterisation is done before certifying the max it can go to
  • [14:53:08] <koen> woglinde: technically it's undervolting, but yeah
  • [14:53:25] <NishanthMenon> koen, there are two modes reverse body bias is undervolting
  • [14:53:37] <NishanthMenon> forward body bias is kinda like over-volting ;)
  • [14:53:38] <koen> and forward is boosting
  • [14:53:54] <NishanthMenon> reverse is more or less unused
  • [14:54:00] <koen> NishanthMenon: on weak silicon you undervolt it and then SR with use FBB to fix it
  • [14:54:05] <koen> that's how I make sense of it
  • [14:54:14] <koen> s/with/will/ somewhere
  • [14:54:18] <NishanthMenon> yeah, that is the theory
  • [14:54:36] <NishanthMenon> in practise, from linux kernel level, we have no friggin clue which silicon is weak or strong process
  • [14:54:46] <koen> right
  • [14:55:20] <koen> so we have the PMIC handle a lot of SR stuff
  • [14:55:32] * NishanthMenon shudders at the thought of another few weeks of staring at voltage levels on scope
  • [14:55:34] <koen> (again, a simplification)
  • [14:55:43] <NishanthMenon> PMIC is stupid really
  • [14:55:57] <NishanthMenon> it just gets told what voltage to go to, and it goes to it
  • [14:56:14] <woglinde> NishanthMenon its like tv
  • [14:56:24] <NishanthMenon> the twl6030 is a little smarter that 5030 - in the sense that it senses the voltage at omap ball level and adjusts voltage
  • [14:56:24] <woglinde> looking at the scope
  • [14:56:38] <aggh> Could it be a Capacity things ? where it worked with 4 Gig not 8 or 32
  • [14:56:54] <woglinde> aggh your card reader suckz?
  • [14:56:55] <NishanthMenon> tps series also has a bit of smarts as well - decides on which technique to use to scale voltage..
  • [14:57:09] <NishanthMenon> but the real SR magic is inside OMAP's SR IP block
  • [14:57:36] <NishanthMenon> woglinde, yeah :D
  • [14:57:43] <aggh> im just asking lol cuse im out of ideas
  • [14:58:16] <woglinde> aagh all your cards are sdhc?
  • [14:58:34] <woglinde> hm ah yes
  • [14:58:36] <koen> NishanthMenon: don't hesitate to throw some half finished patches my way
  • [14:58:48] <woglinde> otherwise the card reader wouldnt regconize them
  • [14:58:54] <NishanthMenon> koen, they all go to my private tree :D
  • [14:59:02] <NishanthMenon> feel free to put a watch on it
  • [14:59:18] <aggh> yeah all SDHC
  • [14:59:25] <NishanthMenon> s/private/github :D
  • [14:59:27] <aggh> the only one that worked are the 4 gig
  • [14:59:44] <aggh> that came with the beagleboard
  • [14:59:47] <NishanthMenon> koen, there are some neat stuff coming that way as well - runtime PM for mmc/serial etc..
  • [14:59:49] <woglinde> private-github?
  • [15:00:24] <NishanthMenon> woglinde, github :D just my personal tree, so will add all disclaimers associated - not upstream, blah blah blah
  • [15:01:46] <jkridner> do you mean without the dropped bytes on serial?
  • [15:02:02] <NishanthMenon> jkridner, nothin one can do about that..
  • [15:02:47] * NishanthMenon thinks jkridner is talking about data corruption on serial when one wakes up from serial
  • [15:03:05] <NishanthMenon> jkridner, the best way to deal with it is to use RTS/CTS
  • [15:03:30] <jkridner> RTS/CTS is good, but can we at least discard the first byte input if not using RTS/CTS?
  • [15:03:33] * ozk (~ozk@nat/ti/x-ytoenqwblidasfea) Quit (Ping timeout: 250 seconds)
  • [15:03:38] <NishanthMenon> we cant
  • [15:03:43] <jkridner> :-p
  • [15:03:52] <NishanthMenon> jkridner, that means we hack up a lot of code in serial - which is not really worth it
  • [15:04:03] * tegila (~tegila@189-015-89-045.xd-dynamic.ctbcnetsuper.com.br) Quit (Quit: Leaving.)
  • [15:05:39] <av500> NishanthMenon: for some reason I dont have that on omap4?
  • [15:05:48] <av500> corrupted 1st byte
  • [15:05:49] <jkridner> I think it is worth it.
  • [15:06:03] <jkridner> it destroys serial consoles on BeagleBoard.
  • [15:06:04] <NishanthMenon> av500 - depends on what you use and which level you go to..
  • [15:06:23] <koen> NishanthMenon: I pulled apart one of your pm branches for .39
  • [15:06:27] <NishanthMenon> av500, for e.g. if you hit OSWR/off, you should have it
  • [15:06:40] <NishanthMenon> koen, my .39 is not being looked at anymore
  • [15:06:43] <koen> NishanthMenon: your email showing how it was merged together helped
  • [15:06:53] <koen> NishanthMenon: I know, just saying what I did a few weeks ago :)
  • [15:07:34] <NishanthMenon> koen - I moved to 3.0 - had to change my branching strategy :) - now trying to push people to post direct to l-o instead of maintaining those patches in my tree
  • [15:08:41] * jpirko (~jirka@nat/redhat/x-iydaddyerajekdjm) Quit (Ping timeout: 240 seconds)
  • [15:08:53] <NishanthMenon> jkridner, why not use hardware flow control instead
  • [15:08:57] <NishanthMenon> it was meant to be used that way
  • [15:08:59] <woglinde> so pm destoryed my serial?
  • [15:09:16] <jkridner> not connected on the board. I think we might try to add it on future versions.
  • [15:09:33] <NishanthMenon> jkridner, i think we should if we need to have coherent data
  • [15:09:55] <NishanthMenon> here is the problem with dumping data: how many bytes have been corrupted - we cant predict
  • [15:10:25] <av500> woglinde: yes, if CPU_IDLE is enabled
  • [15:10:39] <NishanthMenon> we cant even predict if the device that is plugged to serial port - may or maynot be a serial console (think BT device) might have an IRQ based wakeup
  • [15:10:40] <woglinde> I think it was
  • [15:10:50] <NishanthMenon> case 2: what if uart was being used with DMA?
  • [15:11:18] <NishanthMenon> just too many combinations possible there.. if anything there'd be an ugly hack
  • [15:11:59] <woglinde> jkridner how much serials you know of?
  • [15:12:12] * Openfree^ (~Openfree`@58.37.74.22) Quit (Ping timeout: 255 seconds)
  • [15:12:22] <jkridner> I didn't understand your grammar.
  • [15:12:43] <woglinde> I meant how many breaking serial consoles
  • [15:12:46] <woglinde> args
  • [15:12:57] * av500 sends woglinde a BREAK
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  • [15:16:12] <jkridner> it occasionally breaks serial consoles when cpuidle is enabled. i don't know how to count consoles.
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  • [15:16:33] <koen> jkridner: s/breaks/garbles/g
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  • [15:17:02] <NishanthMenon> jkridner, to be reasonable :D, OMAP generates corrupted data which confuses _certain_ PC console applications
  • [15:17:17] <jkridner> yeah, garbles possibly to the point of being unrecoverable.
  • [15:17:19] <NishanthMenon> some apps hang, some recover :D
  • [15:17:29] <jkridner> fair enough, it is PC app dependent.
  • [15:17:44] * NishanthMenon likes being an &^&%^^#$%$
  • [15:18:03] <jkridner> still, I think it is hassle enough to drop the byte if you don't have a hardware handshake to know that it is good.
  • [15:18:31] <NishanthMenon> jkridner, the trouble from driver perspective is knowing how much is garbled and how much is not
  • [15:18:37] <NishanthMenon> there is no checksum in serial
  • [15:18:51] * drakkan1000 (~drakkan@62.123.237.207) Quit (Quit: Ex-Chat)
  • [15:19:00] <jkridner> it is deterministic based on baud rate and port wake-up time.
  • [15:19:26] <jkridner> can we not be sure to wake up in 1 byte time?
  • [15:19:37] <NishanthMenon> jkridner, not necessarily
  • [15:19:41] <NishanthMenon> not in all devices
  • [15:19:56] <NishanthMenon> wakeup latency differs b/w EMU and GP devices for e.g.
  • [15:20:12] <NishanthMenon> you cannot process data untill the driver's irq handler is called
  • [15:20:30] <NishanthMenon> also - add this: what about twl scripts adding latencies on wakeup?
  • [15:21:12] <NishanthMenon> system level - if you try to predict the time required before the uart driver's irq handler is called after the rx line is toggled
  • [15:21:17] <jkridner> k. sucky, but got it.
  • [15:21:18] <NishanthMenon> that is the duration when we loose data
  • [15:21:38] <NishanthMenon> s/loose/garble :(
  • [15:22:24] <NishanthMenon> jkridner, yeah been trying to argue about finding more innovative ideas to get proper data - so far failed
  • [15:22:39] <NishanthMenon> if anyone has a soln, more than welcome on l-o to discuss.
  • [15:24:07] * NishanthMenon steps out for cofee and back to work :)
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  • [15:56:39] <beagleboarduser> hello, i just got a beagleboard xM rev C. I plugged the power supply in, but it isnt doing anything? the D5 led is on, but it's not booting off the sd
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  • [15:58:25] <woglinde> use serial console
  • [15:58:26] <koen> is the sd card inserted?
  • [15:58:53] <beagleboarduser> yep, it is. i don't have a serial cable with me...
  • [15:59:55] <av500> use some wires
  • [16:00:01] <av500> and paper clips
  • [16:01:22] <xxiao> what does MLO exactly do?
  • [16:01:30] <av500> load
  • [16:01:32] <xxiao> does it initialize DDR at all?
  • [16:01:38] <av500> setup sdram and load next stage
  • [16:01:46] <av500> xxiao: yes, thats the whole point of it
  • [16:02:33] <xxiao> i have a MLO+u-boot.bin runs well with DDr 796Mhz
  • [16:02:35] * alanszlosek (~alanszlos@184-76-70-24.war.clearwire-wmx.net) has joined #beagle
  • [16:03:10] <rOxx> i have got a problem with my new compiled u-boot version. i have copied the u-boot.bin to the sd card and booting the beagleboard xm. but it shows me the message "ERROR: can\'t get kernel image!". anybody can help me ?
  • [16:03:15] <xxiao> i then have a pcie-endpoint, which does not have SDCARD, it uses its OCMC(on-chip-mem-controlloer) to store the u-boot.bin
  • [16:03:44] <xxiao> without the MLO it still runs, so it looks like the same u-boot.bin is doing ddr-init instead of MLO
  • [16:06:35] <xxiao> av500: ok, with MLO, i saw u-boot.bin still have ddr-init code, it could not be init-ed twice, what's the trick?
  • [16:06:41] <xxiao> s/have/has
  • [16:06:49] <av500> prolly that its is not called
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  • [16:10:05] <joelagnel> morning
  • [16:11:17] * ant_work (~andrea@host6-80-static.42-85-b.business.telecomitalia.it) Quit (Quit: ChatZilla 0.9.87 [Firefox 4.0.1/20110413222027])
  • [16:13:28] <joelagnel> koen, jkridner: How about echoing into sysfs on boot
  • [16:13:46] <joelagnel> sorry, in context of the serial garble issue
  • [16:14:08] * beagleboarduser (99682f4a@gateway/web/freenode/ip.153.104.47.74) Quit (Ping timeout: 252 seconds)
  • [16:14:19] <joelagnel> like disabling the wakeup capability in an init script
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  • [16:14:38] <joelagnel> could we do it this way?
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  • [16:19:19] <bbuser> hello, i would like to grab audio samples off the line in of my beagleBoard and put them in an array (c program). does anyone know of a way to do this? (I have googled to no avail, so was hoping the experts here could help)
  • [16:22:21] * brianr (cfd80fd2@gateway/web/freenode/ip.207.216.15.210) has joined #beagle
  • [16:23:37] <bbuser> could anyone help? I saw information regarding ALSA...are there any good books regarding audio that you can point me to?
  • [16:24:17] <emeb> books on ALSA. heh - that's funny.
  • [16:25:33] <emeb> bbuser: you should look into the portaudio library.
  • [16:25:55] <emeb> it's available in the Angstrom distribution and takes most of the work out of interfacing to audio.
  • [16:26:41] * ddompe (~ddompe@2001:470:8:76d:223:32ff:febc:52ec) has joined #beagle
  • [16:26:43] <bbuser> emeb: thank you for your help...i am new to beagleboards/linux so i hope portAudio will work.
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  • [16:35:20] <rOxx> i have a problem with my new u-boot version, it shows me the message , Wrong Image Format for bootm command and ERROR: can\'t get kernel image! i think there are problems with the setenv-settings? had someone the same problems or can help me ?
  • [16:44:22] <koen> joelagnel: I'd rather fix it in the kernel, propagating userspace fixes doesn't really work
  • [16:44:42] <koen> joelagnel: finding and applying the angstrom patches is already too much from some "developers"
  • [16:46:00] <koen> sakoman_: do you remember what you needed dconf for?
  • [16:46:55] <sakoman_> koen: no!
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  • [16:47:19] <joelagnel> rOxx, can you paste your boot log on pastebin.com
  • [16:47:40] <rOxx> yes, one moment
  • [16:47:56] <joelagnel> koen, so can I just change the defconfig for BeagleBoard in OE 2011.03-maintenance and then drop in the new kernel? Anything else?
  • [16:48:37] * joelagnel adores his new TI Dell E6510 laptop :)
  • [16:48:39] <koen> well, you change it in .dev and then backport it, but that's basically it
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  • [16:48:57] <koen> joelagnel: but I though we'd go with the extended timeout approach?
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  • [16:51:23] <joelagnel> koen, ok sure. we'll do it that way. Just not sure about the right way to rebuild the kernel . .dev uses .39 for the BeagleBoard right? So how why I should we change it in .dev?
  • [16:51:30] <rOxx> joelagnel, here is the paste - http://pastebin.com/dKCyMAhT
  • [16:51:50] <joelagnel> s/why I/why/
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  • [16:53:27] * joelagnel hopes that made sense even if not gramatically :)
  • [16:54:01] <joelagnel> rOxx, so are you trying to boot from MMC or NAND?
  • [16:54:05] <koen> joelagnel: you can't do changes directly in .maintenance, only backports allowed
  • [16:54:14] <koen> joelagnel: so you do the fix to .32 in .dev and then backport it
  • [16:54:15] <rcn-ee_at_work> rOxx, drop "mmc init" from your boot script...
  • [16:54:43] <rcn-ee_at_work> 2011.06-rc+'s don't like it anymore..
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  • [16:55:38] <joelagnel> koen, gotcha. Also when I switch my git branch from dev to maint for the build, can I still use the same temp directory? Just don't want to rebuild everything
  • [16:55:42] * kevinsc (~a0214685@nat/ti/x-dhocmlwaxcsoqhjk) Quit (Ping timeout: 276 seconds)
  • [16:56:04] <rOxx> joelagnel, my files on sd card with 2 partitions, i think i will boot from mmc ? what is the difference ?
  • [16:56:31] <koen> joelagnel: no, seperate tmpdirs
  • [16:56:40] <koen> joelagnel: you've got that fast laptop now, don't you?
  • [16:56:53] <rOxx> rcn-ee_at_work, do you mean the settings in the boot.scr ?
  • [16:57:22] <rOxx> or which boot script do you mean?
  • [16:58:20] <rcn-ee_at_work> rOxx, yeah double check your boot.scr, there was a change in u-boot 2011.06-rc's, "mmc init" isn't exactly valid as is anymore, but it's safe to remove since by reading 'boot.scr" it's already init'd the mmc card..
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  • [16:59:31] <joelagnel> koen, hehe. I think it will still take 4-5 hours :) Plus I was stealing CPU from chase's machine before I got the laptop (:P) so that's where everything is setup
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  • [17:00:24] * joel is now known as joel|brb
  • [17:00:48] <koen> joel|brb: so do a new setup, it's not hard, git clone, oebb config, build
  • [17:01:42] <joel|brb> koen, okie, will do. thanks
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  • [17:06:02] <rOxx> rcn-ee_at_work, there is no entry with "mmc init" there only some settings with fatload mmc....
  • [17:06:18] <rOxx> in the boot.scr file
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  • [17:10:02] <rcn-ee_at_work> rOxx, line 45 of: http://pastebin.com/dKCyMAhT ... it's rescan now.. http://git.denx.de/?p=u-boot.git;a=blob;f=include/configs/omap3_beagle.h;h=9fd80ed50b7135d1365799f76333f988f0bce554;hb=HEAD#l242
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  • [17:13:34] <koen> sakoman_: it seems that the oe-core gnome is hitting some session related timeouts, I need to debug why
  • [17:16:43] <sakoman_> koen: I haven't started using oe-core day-to-day yet
  • [17:16:56] <sakoman_> maybe in July@
  • [17:18:27] <koen> sakoman_: i did manage to upgrade nearly everything to 2.32
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  • [17:29:07] <rOxx> rcn-ee_at_work, where i must remove the mmc init entry ? here is my boot.scr http://pastebin.com/7mT4xBAD
  • [17:30:12] <rcn-ee_at_work> rOxx, it's on line 45 of your pastebin: "bootcmd=if mmc init ${mmcdev};"...
  • [17:30:41] <rcn-ee_at_work> so you'd have to rebuild u-boot..
  • [17:31:27] * drakkan1000 (~drakkan@62.123.237.207) Quit (Ping timeout: 276 seconds)
  • [17:32:18] <rOxx> yes thats right, but in the boot.scr i don??t find the bootcmd settings... there are only bootargs.... and no mmc init entry ?
  • [17:34:28] <rcn-ee_at_work> yeah, but on startup "bootcmd" is run, falls on the mmc init and never gets to your boot.scr..
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  • [17:35:28] <rOxx> ok i understand, but where i can change the bootcmd ?
  • [17:37:11] * joel|brb (~joelagnel@nat/ti/x-uewzlzyshjugznus) Quit (Ping timeout: 240 seconds)
  • [17:37:44] <rcn-ee_at_work> rOxx, in uboot it's, include/configs/omap3_beagle.h : line 242... direct link: http://git.denx.de/?p=u-boot.git;a=blob;f=include/configs/omap3_beagle.h;h=9fd80ed50b7135d1365799f76333f988f0bce554;hb=HEAD
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  • [17:40:42] <rOxx> ok i found the file and the lin 242, but what is must change there ?
  • [17:44:43] <rcn-ee_at_work> in your u-boot scr, either update to 2011.06-rc's for real or just change "mmc init" to "mmc rescan" which should do the trick.
  • [17:45:03] * DesertZarzamora (~quassel@140.148.78.146) has joined #beagleboard
  • [17:48:20] <rOxx> in my omap3_beagle.h file there is no entry with "mmc init" but line 242 hast this entry "if mmc rescan ${mmcdev}; then " \ .... is this correct ?
  • [17:49:25] <rOxx> do you mean that i work with an old u-boot.scr file and this was wrong ?
  • [17:51:54] * lyakh (~lyakh@dslb-084-061-105-141.pools.arcor-ip.net) Quit (Ping timeout: 258 seconds)
  • [17:55:09] <koen> those meego dweeps are annoying
  • [17:55:26] <Crofton> 4 hours to go
  • [17:55:31] <koen> "we changed willingly to a format noone supports and now we're surprised noone supports it"
  • [17:56:20] <koen> "we can easily build a working version, but then the magic fairy doesn't give us teh awesome label"
  • [18:04:22] * Oltsu_ (suominen@mustaharakka.cs.tut.fi) Quit (Ping timeout: 240 seconds)
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  • [18:12:03] * koen needs to hire someone to tell him that arguing with idiots is a waste of time
  • [18:12:20] <koen> joelagnel: I have a new task for you :)
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  • [18:13:31] <_av500_> hehe
  • [18:15:06] <ogra_> god, #pandaboard is really confusing today
  • [18:15:15] <edufelipe> koen: Hi there! I would like to know if "beagleboard" is the correct target name for a Beagleboard xM on Narcissus. I was on #angstrom and they told me you had the answer :)
  • [18:15:22] <ogra_> lll talking to lill
  • [18:15:38] <koen> so not only do meego people invent armv8, they don't even know the basics about vfp support
  • [18:15:46] <koen> edufelipe: http://26-26-54.hardwarebug.org/30
  • [18:15:57] <ogra_> there are 8 cylinder arms ?
  • [18:15:59] <joelagnel> koen, still have to build the new kernel and look at dmai, if its going to take a lot of time, can it wait?
  • [18:16:07] <koen> ogra_: 3x capital i, not 3x lowercase L
  • [18:16:22] <ogra_> well
  • [18:16:23] <koen> joelagnel: just remind me not to argue with idiots
  • [18:16:28] <koen> joelagnel: e.g. meego "developers"
  • [18:16:36] <koen> ogra_: but still confusing :)
  • [18:16:39] <ogra_> see, as i said, confusing :)
  • [18:16:45] <ogra_> *snap*
  • [18:17:18] <joelagnel> koen, hehe. sure
  • [18:17:49] <edufelipe> koen: Thanks for the passive aggressive answer. Helps building the community.
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  • [18:19:13] <koen> see, even when people waste my time with stupid questions I'm the bad guy
  • [18:19:28] <_av500_> koen bad
  • [18:19:47] <djlewis> mean, awnry, bad to the bone :)
  • [18:20:01] <ogra_> just make sure your salary reflects that
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  • [18:21:43] <djlewis> I find the higher the pay the meaner one can be..
  • [18:23:08] <koen> heh
  • [18:23:18] <koen> module-init-tools' changelog is funny
  • [18:23:26] <_av500_> ogra_: yeah, that backlog looks hilarious
  • [18:23:29] <koen> 3.12 -> 3.13 has real code changes
  • [18:23:51] <koen> 3.13 -> .3.16 is "holy crap, all our docs have been wrong for years"
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  • [19:16:50] <koen> mru: did you see ohad's mail on l-o about the syslink3 stuff?
  • [19:20:23] <koen> mru: https://lkml.org/lkml/2011/6/21/47
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  • [19:27:29] <mru> koen: I missed that, will have to read it later
  • [19:32:00] * dockside_ (~dock@h-62-141.A163.priv.bahnhof.se) has joined #beagle
  • [19:32:23] <dockside_> wow, did not expect so much ppl here
  • [19:33:06] * parts (~parts@mon75-17-88-175-209-140.fbx.proxad.net) Quit (Ping timeout: 258 seconds)
  • [19:35:26] <joelagnel> lol. Yeah, today we have a lot of folks onboard. :)
  • [19:36:30] <dockside_> very nice to see that :)
  • [19:38:07] * prpplague^2 (~prpplague@192.91.66.189) Quit (Quit: Leaving)
  • [19:40:09] <joelagnel> hopefully no bots
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  • [19:43:47] <dockside_> you always have some bots
  • [19:44:00] <dockside_> dataminers
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  • [19:59:59] * joelagnel gets dmai working for display app :)
  • [20:00:33] <joelagnel> jkridner, koen ^^^^
  • [20:01:15] <jkridner> great!
  • [20:01:27] <jkridner> sending patches to oe-dev?
  • [20:01:33] <joelagnel> :)
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  • [20:02:02] <djlewis> botz botz... no, braaains... braaains... :)
  • [20:02:22] <joelagnel> jkridner, sure, will do
  • [20:02:51] <joelagnel> jkridner, also need to check if other apps other than the display works though
  • [20:05:01] * koen suspects jkridner is a bot
  • [20:05:38] <koen> jkridner: did you notice that tirokartchief made the brackets for the tilt/pan/roll head with a makerbot?
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  • [20:25:02] <Crofton> ok, I need to find a plane
  • [20:25:06] <Crofton> and some earphones
  • [20:26:20] * Crofton (~balister@12.177.253.250) Quit (Quit: Leaving)
  • [20:29:06] * koen seems that qmake stopped twitching and switches to stabbing u-boot
  • [20:29:59] <mranostay> koen: stabby mood today?
  • [20:30:09] <djlewis> plane will rent phones
  • [20:30:46] <djlewis> best to have your own
  • [20:32:28] <koen> mranostay: always when sw doesn't want to work
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  • [20:39:35] <mranostay> koen: just blame the hardware :)
  • [20:40:12] <mdp> mranostay, that can be a delicate game to play
  • [20:40:59] <mIKEjONES> could anyone recommend a PCB house that does 6 or more layer boards with 4mil traces?
  • [20:41:13] <mIKEjONES> for low quantity runs
  • [20:41:52] <Ceriand|work> mIKEjONES: http://4pcb.com
  • [20:42:48] <mIKEjONES> anything cheaper than that? don't they charge about $500/board for something with features like that?
  • [20:43:11] <Ceriand|work> 6 layer boards are expensive
  • [20:43:47] * brolin (~brolin@nat221.udea.edu.co) Quit (Quit: leaving)
  • [20:45:21] <mIKEjONES> that's kind of ridiculous though
  • [20:45:51] <Ceriand|work> you could try gold phoenix, but they take awhile
  • [20:45:53] <mIKEjONES> going from $66 for 4 layers something that costs and order of magnitude more just for an extra 50%
  • [20:46:05] <mranostay> mdp: heh that your EE side coming out? :P
  • [20:46:50] * mlip is now known as mlip|aw
  • [20:47:48] <Ceriand|work> mIKEjONES: some people use http://hitech-pcb.com as well
  • [20:49:18] <Ceriand|work> mIKEjONES: the EEVBlog guy uses http://pcbcart.com
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  • [20:50:55] <mIKEjONES> ooo the last one looks interesting, I'll check it out!
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  • [21:02:03] <speakman> can one call omap_request_gpio() and family already from board_init() on u-boot?
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  • [21:16:58] <djlewis> i use pcbExpress but have not priced 6 layer
  • [21:17:36] <_av500_> order 3x 2layer and solder some vias by hand...
  • [21:18:10] <djlewis> _av500_: i like the suggestion. a little glue between layers...
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  • [21:33:29] <speakman> anyone experienced with SYS_BOOT[5] on X-loader? :)
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  • [21:35:32] <_av500_> ??
  • [21:35:52] <koen> is that the userbutton?
  • [21:35:58] <koen> if so, it's bootrom territory
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  • [21:40:58] <joelagnel> speakman, what is your question? :)
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  • [21:56:05] <speakman> joelagnel: I'm thinking of switchin printf on and off depending on how it's set. But I suddently changed my mind. :D
  • [22:00:09] <joelagnel> speakman, I remember you doing that the other day as well :)
  • [22:00:42] <joelagnel> So you want the user button to shut it up?
  • [22:02:48] * frankh (~chatzilla@82.210.249.81) has joined #beagle
  • [22:03:18] <speakman> lol
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  • [22:04:05] <speakman> I'm not exactly on beagle, but my board uses "user button" for rescuing bricked boards
  • [22:04:19] <speakman> And when user button is not pressed, it should be totally silent
  • [22:04:25] * raster (~raster@enlightenment/developer/raster) has joined #beagle
  • [22:04:34] <speakman> right now the only output is "Uncompressing Linux.........."
  • [22:04:38] <speakman> No idea where it comes from
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  • [22:13:22] * kaio (~kaio@fedora/kaio) Quit (Ping timeout: 240 seconds)
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  • [22:25:14] <joelagnel> koen, looks like the uart timeout is disabled for .39 but not for the linux-omap .32 psp kernel that maintenance uses
  • [22:25:35] <joelagnel> should I disable it or increase it? It is currently at 5.
  • [22:29:59] * mIKEjONES (~mIKEjONES@orbital.rh.rit.edu) Quit (Read error: Connection reset by peer)
  • [22:30:47] * jayabharath (~jayabhara@nat/ti/x-vlubzqxfqujbixlj) Quit (Ping timeout: 240 seconds)
  • [22:36:58] * joelagnel disables timeout
  • [22:39:43] * mIKEjONES (~mIKEjONES@orbital.rh.rit.edu) has joined #beagle
  • [22:39:51] <joelagnel> wb mIKEjONES
  • [22:41:16] <ds2> Hmmmm
  • [22:41:40] <mru> hi ds2, what's humming today?
  • [22:41:49] <Ceriand|work> speakman: it's in the compressed boot code
  • [22:41:52] <ds2> nothing is humming
  • [22:42:06] <ds2> it is nice to have another fab capable person on the channel though
  • [22:42:48] <ds2> but why cupcake
  • [22:43:16] <_av500_> why not donut?
  • [22:43:36] <ds2> no one is making donuts? ;)
  • [22:43:56] <mru> _av500_: go fab some donuts
  • [22:44:02] * _av500_ wants jelly beans
  • [22:44:56] <ds2> extrude some thing
  • [22:45:17] <Ceriand|work> speakman: arch/arm/boot/compressed/
  • [22:45:26] * lyakh (~lyakh@dslb-084-061-105-141.pools.arcor-ip.net) Quit (Quit: thanks, bye)
  • [22:45:35] * _av500_ tries to fab some sleep
  • [22:56:40] * almost_anna (~aad@89.23.194.117) Quit (Quit: almost_anna)
  • [22:57:17] <speakman> Ceriand|work: How come it's putting stuff on the serial line? I'm passing "console=null" for cmdline
  • [22:58:20] <speakman> Identical to this; http://docwiki.gumstix.org/Tips_and_tricks#Free_ttyS0
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  • [23:15:32] <speakman> What's telling it to use ttyS2? How to silence it?
  • [23:17:11] <rcn-ee> speakman, double check /etc/init.d/*
  • [23:18:21] <speakman> rcn-ee: "Uncompressing Linux" is written far earlier than any scripts are run. It hasn't even uncompressed the kernel yet.
  • [23:20:51] <rcn-ee> then it's u-boot, as long as you disabled all ttyS's in your boot args, the only thing left would be to disable uart printing in u-boot, you'd have to rebuild it..
  • [23:22:01] <speakman> That's already done. It's the kernel pre-boot stage writing it; http://lxr.linux.no/linux+v2.6.39/arch/arm/boot/compressed/misc.c#L193
  • [23:22:30] <speakman> the weird thing is; how does it know how to write to the serial port? and why ttyS2 and not ttyS0?
  • [23:23:57] <rcn-ee> it gets passed by u-boot?
  • [23:24:05] <speakman> how?
  • [23:24:07] <ds2> chuck u-boot
  • [23:24:32] <Ceriand|work> speakman: see arch/arm/plat-omap/include/plat/uncompress.h:putc()
  • [23:24:36] <rcn-ee> like about right there -> http://git.denx.de/?p=u-boot.git;a=blob;f=include/configs/omap3_beagle.h;h=9fd80ed50b7135d1365799f76333f988f0bce554;hb=HEAD#l91
  • [23:29:39] <speakman> Ceriand|work: interresting!
  • [23:33:09] * rcn-ee (~voodoo@thief-pool2-123-49.mncable.net) Quit (Ping timeout: 264 seconds)
  • [23:33:36] <speakman> Ceriand|work: found where in menuconfig to change from ttyS2 to "none" too :) Thanks!
  • [23:33:48] <Ceriand|work> speakman: np
  • [23:34:19] * phantoxe (~destroy@a95-92-86-197.cpe.netcabo.pt) has joined #beagle
  • [23:43:06] <speakman> by the way; can X-loader be configured to _try_ MMC and then fallback to NAND? Currently, I have to comment out #define CONFIG_MMC to make an X-loader to be stored in NAND (and load u-boot from NAND)
  • [23:43:40] <Ceriand|work> speakman: you'll probably have to edit lib/board.c
  • [23:44:08] <speakman> ok
  • [23:44:52] <speakman> ...which takes me back to my original thought of "disabling" printf() when b
  • [23:45:08] <speakman> when "user button" is not pushed
  • [23:46:46] * rcn-ee (~voodoo@thief-pool2-123-49.mncable.net) has joined #beagle
  • [23:47:17] <speakman> (my board has a jumper shunt for "user button")
  • [23:50:55] <speakman> looks like such thing would require major interventions in x-loader... :/
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  • [23:52:06] <Ceriand|work> speakman: if you don't want anything on the serial port, you could just turn off the fclk to the serial module in your board file
  • [23:53:03] <speakman> Ceriand|work: oh? hm.. that's interresting..
  • [23:55:13] <ds2> Ceriand|work: isn't that like pumping out all the air in a room to keep people out?
  • [23:56:31] <speakman> hm - whatever keeping x-loader quiet and does not affect any further use of the UART :)
  • [23:56:50] <speakman> I guess U-boot isn't pending on X-loader setting the fclk?
  • [23:56:54] <speakman> Ceriand|work: http://gitorious.org/x-loader/x-loader/blobs/master/board/omap3530beagle/omap3530beagle.c#line772
  • [23:57:08] <speakman> Ceriand|work: One of those? ^
  • [23:57:58] * ronk (411bb2d1@gateway/web/freenode/ip.65.27.178.209) Quit (Ping timeout: 252 seconds)
  • [23:59:12] <Ceriand|work> speakman: yea, or just undefine CFG_NS16550
  • [23:59:33] * Ceriand|work keeps forgetting people still use u-boot
  • [23:59:42] <Ceriand|work> on the OMAP
  • [23:59:57] <speakman> Ceriand|work: But I have to enable/disable it depending on user button - remember?