Turl changed the topic of #linux-sunxi to: Allwinner/sunxi development discussion - Don't ask to ask. Just ask and wait! - See http://linux-sunxi.org | https://github.com/linux-sunxi/ | Logs at http://irclog.whitequark.org/linux-sunxi | #blameOliver
<oliv3r> 4.5
<oliv3r> no docs etc
<arokux2> fuck
<oliv3r> driver completly different from emac
<oliv3r> not even a little alike
<oliv3r> sleep time
<deasy> hmm samsung soc are probably lot more expensives
<deasy> popolon, they do lot of work upstream?
<arokux2> oliv3r: good night
<popolon> probably, yes
<arokux2> cubietruck seems to be pretty unsupported board.....
<arokux2> Turl: were there cubietrucks with 1GiB?
<Turl> arokux2: you should ask benn
<Turl> oliv3r: I was told aw uboot had gmac driver
<Turl> maybe worth a look
<arokux2> Turl: is it in some branch here? https://github.com/amery/u-boot-sunxi
<Turl> arokux2: http://git.rhombus-tech.net/?p=u-boot.git;a=blob;f=drivers/net/sun6i_gmac.c;h=f52b11d84d85f6bb06f485d470dc72090273b185;hb=refs/heads/allwinner-sunxi-a31
<arokux2> Turl: o_OOOO
<arokux2> Turl: who told you it is there?
<Turl> I don't recall
<Turl> but now you know :)
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<Turl> arokux2: did you get your ct?
<arokux2> Turl: yep
<arokux2> u 2?
<Turl> arokux2: nope
<arokux2> Turl: is it on the way?
<Turl> if you get gmac working it'll be an out of the box set up for me :)
<Turl> arokux2: yep
<Turl> it's somewhere in the country
<arokux2> Turl: :p I'm trying right now
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<deasy> i think someone asked to get something with nothing
<deasy> yesterday, here
<deasy> i don't remember the pseudo but you can do something with it
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<arokux2> Turl: ok.. won't work out of the box
<arokux2> Turl: but compiles etc.
<deasy> iteaduino with a10 or a20 can be interesting
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<arokux2> why?
<deasy> you can plug raspb or arduino module on it
<deasy> (and maybe even another, i don't remember)
<deasy> they have not succeed their indiegogo campaign
<arokux2> good night!
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<Skaag> My load is always at least at 1.0, never below
<Skaag> is that normal for the platform?
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<arokux2> libv: is there 2D accel for sunxi? (with blobs or whatever)
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<deasy> Skaag, what do you use? board+distro
<deasy> it's not normal
<Skaag> A13 from Olimex, Debian Wheezy
<Skaag> Kernel 3.4.61
<Skaag> I wonder then what's causing this
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<apo> actually, I seem to have that too
<apo> hardly any disk I/O, no CPU load, but a load of 1.06...
<apo> I'm not really bothered, but it is curious
<Skaag> yes I'm not bothered either, everything seems to be working fine, but still it's weird that even when nothing is happening, the load is always 1.0
<Skaag> it's too "round"
<Skaag> iotop shows nothing serious going on
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<deasy> Skaag, no one processus use the cpu?
<deasy> can you try with htop ?
<Skaag> yep, trying
<Skaag> while running htop, it is the topmost process always
<Skaag> all the rest use less cpu than htop
<Skaag> while htop itself uses 4% cpu most of the time
<deasy> yes like me htop always on top or almost here on my x86
<Skaag> this is not a cpu thing. htop shows cpu never crosses 20%.
<Skaag> and it's mostly around 7% really
<deasy> hmm
<Skaag> this is something else, where the linux kernel thinks load is at 1.0
<Skaag> load is a combination of things, it's not really just cpu usage
<deasy> it's something about how much time a processus have to wait for be executed
<deasy> i think
<deasy> i have read something about it
<Skaag> I thought iotop would show me what's doing it, but even iotop is showing that most of the time, there is almost no i/o happening
<Skaag> yes exactly
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<apo> not how much time
<apo> just the number of processes waiting for something
<libv> arokux: no blobs, but yes, there is
<libv> arokux: there is 2d acceleration support in the kernel, it is not a perfect engine apparently, but i think that fbturbo makes use of it
<libv> hrm, infobox.
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<apo> 22 ? D 0:37 [usb-hardware-sc]
<apo> ah.
<apo> Skaag: still here?
<libv> mnemoc, oliver, Turl, arokux: any idea where infobox is defined?
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<Skaag> apo, here now
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<Skaag> apo, right, the usb-hardware-sc has a status of 'D' (and is the only one with that status)
<Skaag> why is that?
<Skaag> (D = Disk Sleep)
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<chkktri> morning, in kernel config what does "CONFIG_ANDROID" enables?
<JohnDoe_71Rus> think kernel for android
<chkktri> guess that' not required for other distros then
<mnemoc> libv: infobox is a template
<libv> mnemoc: where is it defined? so i can find out all possible entries
<libv> mnemoc: the best of luck with your upcoming interview, btw
<mnemoc> libv: thanks
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<libv> mnemoc: hrm... where are the specific infoboxes, like for instance board, defined?
<mnemoc> same scope
<mnemoc> {{Foo}} -> Template:Foo
<libv> http://linux-sunxi.org/Template:infobox<space>Board is not existent
<libv> err, does exist
<libv> ok, thanks
<mnemoc> yw :)
<libv> i will add LCD, touch and camera entries to that
<libv> and will document this template, in yet another wiki page, where i will try to explain decent board page creation
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<mnemoc> libv: usually template docu is done in the <noinclude></noinclude> part, while the template itself goes in <includeonly></includeonly>
<mnemoc> of the same Template:
<libv> ok
<mnemoc> in wikipedia they go a little farther and made a template to include {{Foo/Documentation}} into [[Template:Foo]]
<mnemoc> but inside [[Template:Foo]]'s <noinclude> block obviusly
<libv> mnemoc: i am hoping that the new board howto will clear some things up, and will make properly structured board pages more consistent and useful
<mnemoc> +1
<libv> but for something like that, templates will get in the way imho
<mnemoc> a mix of both :)
<libv> for the infobox, it seems just what the doctor ordered :)
<mnemoc> you don't really want to have fully template generated pages
<mnemoc> but the infobox can do cool things, even auto-categorization based on the fields
<libv> yeah, that will only limit things and make people less likely to create such a page
<libv> i will create a fully empty example page though, so people can just copy/paste
<mnemoc> :)
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<plaes> mkimage utility comes from u-boot?
<plaes> the one that's required to build uImage?
<chkktri> indeed, there's one but i guess you can find it in repositories too
<plaes> ah.. Gentoo has u-boot-tools package
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<plaes> hrm.. the link to ubuntu-alip is not working
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<oliv3r> Turl: it did? which one? got a link so I can check? though that's the sun6i driver from rhombus, we do have the 3.4 lichee dump for sun7i which does have a gmac driver
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<oliv3r> Skaag: old bug, was fixed ages ago if i'm not mistaken; or was it a config issue based on a script.bin settings? I don't recall; but it's on the ML/wiki
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<NotRelevant> Just for the record: On 20131110,1205 (see logs) I was trying to access my 3.5" HDD from Android (cb_a20_android42_v1.05-8188eu-en_US.img). The HDD had a GPT partition table and... it didn't work. I've tried later the same but with a MBR partiton and it worked. Also I've noticed that the "-t type" argument to the mount command is REQUIRED (the help suggests that is optional). The /etc/vold.fstab was not modified. Example: m
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<plaes> NotRelevant: your message was cut after "Example:"
<NotRelevant> ... The /etc/vold.fstab was not modified. Example: mount -t ext4 /dev/block/sda1 /mnt/sata
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<libv> plaes: yeah, linaro likes to move things about a lot
<plaes> \o/
* plaes has linaro-nano running :)
<libv> plaes: nice, but alip might have been more useful :)
<libv> really cool though
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<plaes> too bad I don't have microUSB plug so I could try out keyboard :S
<libv> ouch, without serial or a keyboard, you probably are unable to do anything
<libv> are you sure that no usb OTG cable was provided with your device?
<plaes> at home :)
<libv> ah :)
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<chkktri> lol, there is sun4i package in AUR, but it uses tmpfs for extracting kernel repo ...which is about 2GB huge
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<plaes> libv: linaro doesn't seem to be providing alip packages anymore :S
<libv> it was doing so 2 weeks ago
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<libv> they just fucked up again.
<libv> no surprise there tbh
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<libv> plaes: i started whining in #linaro
<libv> you can apt-get update/upgrade to get the latest bits
<libv> once you have a keyboard :)
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<mnemoc> :D
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<libv> wtf. i seem unable to upload an inkscape generated png, which is correctly previewed
<plaes> libv: the link you gave me is also empty
<libv> plaes: works for me
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<plaes> hmm wow, indeed
<plaes> mm.. on this page: linux-sunxi.org/Bootable_SD_card
<plaes> in the "Partitioning" section
<arokux> chkktri: we have fixed audio, if you need it now, you need to apply a patch. do you need it now?
<plaes> doesn't the first command kill the bootloader?
<plaes> `dd if=/dev/zero of=$card bs=1M count=1`
<arokux> plaes: right, linaro project deleted this image....
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<arokux> plaes: can you please look if there is a new image and fix our link?
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<arokux> WarheadsSE: take a look at this by libv ---> " there is 2d acceleration support in the kernel, it is not a perfect engine apparently, but i think that fbturbo makes use of it "
<libv> arokux: i am on it
<arokux> libv: talking with WarheadsSE ?
<libv> arokux: apparently, linaro decided to change their policy and their ALIP is now openembedded based
<arokux> libv: what???
<libv> so it no longer is a useful option for our first order approximation standard linux installation
<arokux> libv: it was deleted because there is retention policy of 30 days or so, focus find it out.
<libv> there is one left for each monthly release
<libv> but it is no longer present since september
<arokux> mnemoc: it would be so cool if the e-mails would include a link to gmane ...
<arokux> libv: I was going to ask mnemoc to build our own, it is not difficult. everything is based on debian live and we just can take scripts from linaro
<arokux> chkktri: for the audio to work on cb1 you need this patch: http://thread.gmane.org/gmane.comp.hardware.netbook.arm.sunxi/3937/focus=4421
<libv> arokux: more overhead.
<arokux> libv: true, but what are the options?
<libv> yeah, i'm just complaining
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<libv> now really, why doesn't it want to accept my pngs.
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<Turl> libv: huh, I used apt-get on alip the other day o.O
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<arokux> Turl: you were puling arm packages from ubuntu
<arokux> Turl: alip is really a customized ubuntu for arm afaik
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<libv> Turl: alip is just a special mix with basic useful things installed, like a working X and a not too heavy wm
<libv> arokux: i really rather doubt that this alexey eromenko is willing to actually donate any hardware
<arokux> libv: why? :)
<libv> arokux: he has made it quite clear and obvious that he is not interested to work with linux-sunxi
<arokux> libv: why this e-mail then?
<libv> oh, he just wants to whine
<chkktri> arokux: great, i'll try it now
<n01> mripard: for RTC do I have also to submit again the DT bindings doc?
<libv> if he had any other intention, he would've come to linux-sunxi with his proposal
<focus> arokux, libv: you can ask nicely in #linaro if someone will remake the latest linaro - they may do it (they are more likely to do it if is one of their partners), there is also a way to make it from one of their web based tools - i forget details now
<chkktri> btw, i just ran old kernel which came with arch linux and everything works so much faster :\
<arokux> chkktri: define everything
<mripard> n01: yes, it's not been merged
<chkktri> e.g.: mocp used to eat ~90% of CPU when playing 128kbps MP3 stream from net while with old kernel it's about 5%
<chkktri> arokux: define where?
<arokux> chkktri: I mean: describe what is slow.
<arokux> chkktri: hm.. that needs investigation.....
<chkktri> ah
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<chkktri> well, mocp CPU usage, shell response time, maybe something else
<arokux> mripard: there are some pulls! :)
<focus> turl: i think (can't remember properly) i must thank you for suggestions a while back for changing uboot environment so that iteaduino board can be persuaded to boot from sata - got it working on Ubuntu 13.04 last night booting from sata :D
<arokux> focus: well done! you probably have the biggest farm of allwinner boards :)
<focus> printenv, setenv and saveenv works as described
<focus> arokux: :D
<focus> mk802 as well
<focus> and some exynos
<n01> mripard: ok. I'm also almost done with the lradc. But before submitting I was thinking to add also triggers and buffers
* plaes just pushed Gemei G9 support for u-boot
<arokux> focus: have you seen new arndale board?
<focus> arokux: more important - they are *working* boards with big desktop distros - thanks all to you guys :)
<focus> arokux: got a link?
<mnemoc> arokux: it's not possible to pre-generate gmane URLs because they keep their own numbering
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<mnemoc> I also mailed the gmane guy asking for renaming the group to gmane.linux.ports.arm.sunxi
<mnemoc> like omap's
<arokux> mnemoc: it'd be is just so cool to have a direct link to an e-mail
<mnemoc> once we run our own mailing list and archive we could
<n01> mnemoc: what do you use to read gmane nntp?
<focus> arokux: nice - but the exynos quad cores are no faster than allwinner A20 - anything more than dual core, they all have same problems = DDR page turn speed is still 10MHz
<arokux> focus: o_O
<focus> unless they build one of my digital versions of quantum computer, they all deluding themselves over speed improvements
<Turl> chkktri: maybe you weren't using cpufreq earlier and you're now?
<focus> may be one of us make enough money and we all get together and make this new class of CPU chips
<focus> too much work me thinks :(
<mripard> n01: I think you don't need the buffers and triggers, but if you really want to work on something, I guess you can work on making the buttons work
<focus> my fpga skills close to nil
<n01> mripard: ok, then I'll submit the patch with only raw readings. I changed a lot from the vinifr version.
<chkktri> Turl: well, i don't remember even using that, what's this?
<Turl> focus: I don't particularly recall doing that, but you're welcome :p
<Turl> chkktri: cpufreq scales the cpu frequency based on usage/demand
<focus> turl: you are welcome
<focus> i don't remember either
<focus> :)
<mripard> n01: but I really think the buttons support, even polled for now, is much more important than buffer/triggers
<Turl> chkktri: so if nobody is using much cpu, it'll run slowly
<n01> mripard: the only suggestion you gave him that I did't address is where to define which channel to use. If it is not in DT where I can put it? sysfs?
<n01> also because in at91 is defined in DT
<mripard> you don't have to define them.
<arokux> focus: have you actually did some objective testing quadcore exynos vs dual core A20?
<mripard> don't focus on AT91
<n01> so I enable both and the user read one or the other by sysfs?
<mripard> a) the maintainer was speaking nonsense
<mripard> b) the hardware is quite different
<n01> yeah I know
<mripard> especially since ADC channels need to be muxed, while we don't
<mripard> but yeah, just use whatever the guy is reading from sysfs
<mripard> it's enough to know which channel to use
<n01> ok. got it.
<libv> heh, it really doesn't want to accept my images today.
<libv> can anyone try to upload an image to the wiki?
<focus> arokux: not precise testing - but general boot times and sluggishness is about the same as A10/A20.
<Turl> libv: do you get that it's empty?
<libv> yeah
<Turl> libv: it's a server bug
<libv> ok?
<Turl> libv: /tmp misteriously just fills
<arokux> focus: i could compare RK3188 and Cubietruck in near future.
<Turl> even if it's empty
<dapsaille2> hi o/ .. does someone know the max pixel clock for a13 ?
<arokux> focus: i.e. Radxa
<focus> arokux: where i would expect to see improvement is in applications where the page turn rates are low such as deep computing loops
<dapsaille2> min pixel clock sorry :x
<arokux> focus: so not if used as a compilation box?
<Turl> libv: let me see if I can fix it
<oliv3r> arokux: did you try my u-boot? does it make 2GB work for you?
<arokux> oliv3r: not yet, but I've tried sun6i_gmac.c, ugly code drop haven't brought results, but it compiles.
<focus> arokux: where it won't work is with applications such as servers servicing lots of different request, definitely not compiling (unless its got a lot of cache ram it can access), and general desktop responsive computing
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<arokux> oliv3r: Turl just showed me this yesterday: http://git.hands.com/?p=u-boot.git;a=blob;f=drivers/net/sun6i_gmac.c;h=f52b11d84d85f6bb06f485d470dc72090273b185;hb=refs/heads/allwinner-sunxi-a31
<arokux> oliv3r: maybe you can make more sense out of it.
<focus> arokux: since desktop and servers are far more important, this whole arm thing is just not going to see improvement until the page turn speed is improved, cache size improved or some kind of architecture change
<libv> Turl: thanks
<arokux> focus: that is really discouraging. but for 2 x A20 the bottleneck could be intercommunitcation, couldn't it?
<focus> arokux: even if they communicate by ethernet, it won't be bottleneck compared to the page turn limit of 10MHz
<Turl> libv: try to upload now
<arokux> Turl: what have you done? :p
<libv> Turl: worked!
<arokux> focus: o_O hm... I'd like to see some real tests, have you seen any?
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<oliv3r> arokux: that's the a31 gmac driver, use the one from lichee-3.4 for a20 (sun7i)
<Turl> arokux: killed some zombieish shell scripts with deleted file handles on /tmp
<arokux> oliv3r: that was u-boot
<focus> arokux: what happens is that the CPUs need to do a lot of jumping and looping - and if that is into the same page, then page turn does not occur - also if big data transfers, then page turn happens only a limited number of times because DMA controller is in charge of the data transfer - so 2 x A20 a lot better communicating through ethernet than direct interprocessor communications
<oliv3r> arokux: yeah that sun6i stuff is really old
<Turl> libv: great
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<focus> arokux: so 2 x A20 servicing a web page by one sending the pages, and one sending the images is 2 x performance compared to one quad core A31
<arokux> focus: o_O
<focus> arokux: likewise with database - if you can split the query into two, then each cpu can go access the hard disk (ssd better) and grab half the answers more quickly than one quad core or 8 core.
<arokux> oliv3r: no GMAC in there.
<focus> arokuk: that division of data is however very difficult - need to implement transactions - a lot harder and time consuming
<oliv3r> arokux: hmm, i do remember seeing it somewhere, i may have forgotten where :D
<focus> arokux: out of sync database is next to useless
<arokux> libv: Coby_MID7042 is your new tablet?
<Turl> oliv3r: if you're bored and want to review something check my uboot branch named sunxi-mbus
<Turl> :)
<libv> no, but i helped mdfe bring it up like 6 months ago
<oliv3r> Turl: still not bored, still busy, but i try to review it :)
<oliv3r> Turl: gitorious?
<libv> i learned on saturday that the tablet is no longer with us though.
<arokux> focus: I see. it can be very interesting to setup dual-EOMA68 then...
<Turl> oliv3r: bitbucket
<oliv3r> Turl: rgr
<Turl> I never used gitorious
<Turl> :p
<arokux> oliv3r: please remember! hacking without network sucks
<oliv3r> i think libv uses it
<oliv3r> arokux: i never booted over the network :p
<Turl> arokux++
<Turl> oliv3r: pff, get with the times :D
* torbenh3 clones the u-boot repos
<arokux> hi torbenh3 :)
<oliv3r> Turl: haha, i'm a fan of github; while i don't approve of github :)
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<arokux> I new it won't be next week end :p
<Turl> oliv3r: github is ok if you're lazy
<Turl> it's a great excuse to avoid working when it's down :P
<Turl> (ie, most of the time haha)
<oliv3r> haha; i dissaprove de to it's propritary backend; yet I still use it, go figure
<libv> gitorious was used by nokia, back in the day when it still was a functioning company
<wens> arokux: I suppose sun6i gmac driver should work, though you have to replace the base addr in sun6i_gmac.h
<Turl> huh, gitorious got a facelift
<Turl> looks usable now
<torbenh3> arokux: no. i am at work now :)
<focus> arokux: can't get eoma - i am going to try something with 4 x cubies soon if i get time
<arokux> torbenh3: sunxi stuff is your work too?
<torbenh3> no
<oliv3r> libv: but nokia has sold like double of the smartphones it sold last year! it went up to 3%!
<oliv3r> focus: olimex!
<torbenh3> arokux: doing userspace stuffs right now.
<Turl> oliv3r: 100->103?
<libv> Turl: ah, it did, nice
<libv> it still seems relatively featureless though
<arokux> torbenh3: it is cool sunxi is (part of) your day work.
<focus> oliv3r: too expensive total cost compared to cubie - otherwise i buy it many times over
<Turl> libv: yeah, but previously even finding the git log was a pain
<oliv3r> Turl: well if you first sell 1 phone, and then 2 phones, that's like 200% increase :)
<oliv3r> focus: but olimex is OSHW vs closed cubie :(
<arokux> wens: will try it out.
<torbenh3> arokux: i just cloned it, so i wont forget.
<arokux> wens: what makes you think it should work?
<libv> true, but good news, gitorious isn't slowly dying
<focus> oliv3r: true - but eagle - several thousand dollars to play with files
<plaes> kicad allows you to import eagle's .brd files
<oliv3r> focus: yeah, but cubie uses some propriatery tool too ;)
<arokux> Turl: sorry, I'm going to try your patches only after I have network in u-boot :p
<focus> plaes: when be that true??????????
<arokux> :)
<focus> plaes: if that true I go play with them files!!!!!!
<wens> arokux: I just assume they are the same IP, hooked at different addresses/pins/clocks
<plaes> focus: it's possible with current bzr ( and you can do: `git clone bzr::lp:kicad` :)
<arokux> oliv3r: after a quick look no of the branches at https://github.com/linux-sunxi/u-boot-sunxi/ have GMAC.
<oliv3r> Turl: https://bitbucket.org/emiliolopez/u-boot-sunxi/compare#Larch/arm/include/asm/arch-sunxi/clock.hT215 i like that; you differentiate between sun4i and sun7i nicely (well sun5i)
<oliv3r> arokux: it may be in a diff repo; i don't remember, check amery's stuff
<oliv3r> arokux: i know i've seen it; bt doesn't matter, the a31 stuff is 'good enough' since we can pry the driver out and use it
<focus> plaes: thanks for the pointer - i go play with it soon - that is really really good news :)
<oliv3r> Turl: i like your patch, if hno approves we can merge
<Turl> oliv3r: cubietech is currently testing the patch to ensure stability
<Turl> they got a bigger hw sample of their hw than I do :)
<arokux> oliv3r: nothing at amery's github too (https://github.com/amery/u-boot-sunxi) so where is it?
<oliv3r> arokux: idk; but not important, it's 'somewhere' and that's good enough :)
<arokux> oliv3r: no, that is not good :(
<oliv3r> Turl: ok first I liked the CCM_MBUS_CTRL_N_X define change, but now i'm doubting it, it's confusing :p
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<Turl> oliv3r: I'd use log2 but I dunno if it's defined on uboot :p
<oliv3r> probably not :)
<oliv3r> as long as it's the same on sun5i and sun7i it's good
<arokux> focus: if quadcore are already bottlenecked, what can be said about octa core ones? :-O
<oliv3r> well most octa aren't really octa's, they are big.LITTLE :)
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<oliv3r> but doesn't qualcomm I think it was say the same, there's no point in keep adding cores to improve performance
<oliv3r> once you go beyond dualcore, the benefit becomes minimal
<plaes> yeah, but it's a marketing push
<oliv3r> 2.2 is good enough, and 4.4 is really the maximum you should do with the number of cores
<arokux> oliv3r: and you do not remember the reference? :p
<oliv3r> though 2 little, 4 big is probably the sweetspot
<focus> arokux: samsung knew this bottlneck and made it into 2 x 4 CPU sets - one set low power and other set high power - 8 core sounds impressive for marketing - but the moment they make claims it speeds up desktop by x8, the lawsuits will start flying :)
<focus> arokux: if it really is that good, then everyone will be claiming dual cores 2x powerful and 8x cores 8x powerful - but reality is that 4x cpus are probably slower than 2x cores for general desktop computing
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<arokux> focus: "DDR page turn speed is 10MHz", so DDR should be improved?
<libv> what is "page turn speed" anyway?
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* arokux has no idea
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<libv> the only reference i find to that has to do with epaper
<focus> arokux: it can't be improved because of physics - it needs a fundamental redesign of computers (hence my suggestion digital version of quantum computer - about 5% extra silicon for 100x REAL performance improvement)
<arokux> focus: can you plz define "page turn speed"
<focus> arokux: DDR is organized into pages - a bit like sectors - each address location within a page is accessible in about 10ns. but once you cross to a different page then all kinds of changes need to be made to the chip to access the next page - by the time its done - its cost it 100nS or more
<focus> arokux: so if two applications constantly bitch over which page they want - the max speed of the cpu gets limited to about 10MHz
<arokux> focus: I see. the same technology is used on x86 platforms, right?
<focus> arokux: all DDR is like that
<focus> arokux: its a physics problem
<libv> focus: i cannot find any mention of "page" on http://en.wikipedia.org/wiki/DDR_SDRAM
<libv> focus: i really rather doubt that ddr[1-4] memory chips have any knowledge of paging
<libv> focus: that's a higher level function implemented by the memory controller
<torbenh3> libv: the page is a row in ram terms.
<torbenh3> anyways, caches are there to mitigate this :>
<focus> arokux: static ram doesn't have this problem - but they consume vast amounts of power and chip space - so the physics problem is that you can have high speed at high power or high density with low power and page turning speed rate limited
<Turl> focus: wouldn't cpu caches solve the problem though?
<libv> focus: bearing in mind that multi core systems tend to have cache subsystems to match?
<focus> turl: yes and no - if 4 applications can run on quad core with 4 caches, then fine, but as soon as it turns into a database or something larger than the cache, the bitching over which page to access happens and suddenly the cpu is rate limited to 10MHz again as the total throughput rate from the cores to the DDR
<libv> where does this 10MHz "hard" number come from?
<focus> it it sh row access time - not a hard number and its worse than that - about 7MHz?
<libv> focus: wouldn't one have the same issue with a single core system as well?
<focus> libv: 100%!!
<libv> focus: sure, you do not get 8x the performance out of an 8 core system, that's a given
<libv> but stating that it is completely irrelevant is not true
<focus> libv: if you could boast 6x performance out of an 8x core you still get sued - its about 5% better than dual core I would imagine :(
<focus> and that if the applications let you
<libv> focus: again, a hard number
<focus> libv: approximate number
<mripard> focus: that number also assumes that you have all the caches, prefetching, etc. disabled, and that you only do load and stores, which seems to be a pretty useless system and workload
<libv> focus: how come it is 7MHz for every DDR module, for every layout of DDR modules, every bus, and every memory clock?
<focus> mripard: i'm limiting myself to typical desktop applications and server application - not specialist applications that can be designed to make full use of cache and the way ddr works
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<torbenh3> in my mind, a typical desktop application is idle 99%.
<focus> mripard: i am assuming caches are working as expected for typical set up of desktop + server applications
<mripard> then a typical application won't access memory at each instruction
<mripard> and a typical application will let the CPU do its out of order execution and its prefetching to optimise all these things.
<focus> torbenh3: i'm limiting myself to occasions when running something like database or opening a files
<torbenh3> opeing a file ? thats waiting for the harddisk most of the time :S
<focus> tobenh3: during file transfer the problems don't appear because DMA is in charge and random page turns are not as frequent
<focus> torbenh3 - i meant opening something like a 10Mb html file - lots of stuff that needs to get done - or a word file etc.
<focus> libv: the problem are down to physics
<torbenh3> well... this is why one tries to use cache local algos.
<torbenh3> iE dont use lists, they suck.
<libv> focus: which value, or combination of values are you talking about
<libv> 800MHz DDR2 seems to have a tRAS of 40ns
<focus> torbenh3: yes - but orgin of discussion is what will happen if 2 or more CPUs are present
<libv> which means that it can switch rows at 25MHz
<focus> libv: tRC
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<focus> the fastest there is 84ns = 12MHz
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<arokux> might be interesting
<torbenh3> so the conclusion is, that throwing cpus at membound problems, is not useful... oh well
<focus> torbenh3: yep
<torbenh3> i throw cpus at cache bound problems and, it works very well.
<arokux> The paper contains some interesting references as: The Benefits of Quad-Core CPUs in Mobile Devices by nVidia
<torbenh3> its very sweet to see 32core machines compiling kernels.
<focus> arokux: they be wanting my digital version of quantum entangle memory :D - at least x100 performace for 5% silicon - i be dreaming
<focus> torbenh3: they are better off fitting more cache - but that increases heat and energy consumption - it sudden stop being ARM and become intel :(
<Turl> the main issue with scaling on cores is that most apps use 1 or at most 2 cores
<oliv3r> even using 2 cores is very rare
<Turl> so unless you're doing a highly parallel workload, scaling on freq is better
<oliv3r> but i love my six core phenom II
<oliv3r> to compile shit with ;0
<focus> Turl: freqency scaling works up to a point where the stuff inside cache goes faster - but soon as it involves accessing external DDR, the page turn limit limits the overal computing throughput
<arokux> Turl: mm.. independent benchmarks would be much better.
<Turl> focus: and if you have less cores, you can put more caches and avoid it :)
<Turl> arokux: yeah, dunno how accurate the 170% figure is, but the concept holds
<focus> Turl: i do all kinds of tests for years - and settle on SSD and dual core as best - anything else is wishful thinking for practical problems
<focus> turl: cores costs practically no space - its all taken by the cache
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<Turl> focus: I found 4x performance increase on most of my workloads when switching from dual core to quad core/octa-thread
<Turl> it really depends on what you're doing I suppose
<focus> Turl: i not understand that - i have quad cores - but no faster than dual cores for most things - and yes it does depend on what is being done
<Turl> on mobile on the other hand, not so much from going dual->quad
<Turl> GPU, IO and memory bandwidth are the main constraints there
<focus> some dbase things i do take half hour - not much faster with ssd on dual or quad core
<focus> burning dvds, compressing files, moving files around, etc. etc common desktop things - hardly any difference on quad core compared to dual core
<Turl> burning dvds is completely burner-bound
<Turl> compressing files on parallel highly benefits from cores
<focus> Turl: yes - burn dvd, compress files, and move files all at same time..:D
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<slapin> hi, all!
<focus> i believe i notice improvements in compile speeds - but not sure - but that is just what I mean can't tell in real terms what benefit quad is over dual otherwise i buy quad and 8 cores tomorrow
<Turl> focus: you risk io-starving your disk and making that dvd worthless :p or at least once upon a time that could happen
<slapin> where is rz2k's mtd experiments?
<focus> slapin: hi
<Turl> hey slapin
<Turl> slapin: did that patch I linked you the other day help with the uboot->linux mac?
<focus> Turl: it hasn't happen yet :)
<Turl> slapin: I did a quick test on cb2 and it seemed to be ok
<slapin> Turl: I postponed that for a bit as I'm digging in mtd kernel stuff, but will integrate all stuff this weekend, so will look
<Turl> focus: you can compile android in 15-20m on quad core box, vs several hours on dual core
<focus> Turl: that is interesting to know
<Turl> probably if I throw more ram on dual core box it'll be less drastic difference, but still perf increases
<arokux> focus: box -- x86 or ARM?
<Turl> slapin: ok, let me know then
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<focus> Turl: i believe latest android compile may well need 32GB RAM for this performance - true or false?
<Turl> focus: I haven't tried yet
<Turl> but 4.3 is usually fine with ~16G
<focus> Turl: thanks - boss wants this looking into at some stage
<Turl> I'll let you know when I build 4.4
<focus> uart_rx repair suggest - if anyone interested - http://www.gplsquared.com/eoma_boot/eoma_boot.html#uart_repair
<Turl> focus: worth looking into olimex designs too, I think they fixed that on their later boards
<dapsaille2> i encounter a problem on a13 hardware, if i use a specific modeline who works on a x86 debian, i get no picture on crt with olinuxino
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<Turl> bbl
<Turl> dapsaille2: what a13 hw?
<focus> Turl: thanks - i look at that and document
<dapsaille2> Olinuxino (no nand no wifi)
<Turl> dapsaille2: they do vga via lcd interface I think
<dapsaille2> yes i know, ican get 800x600 to work but not a specific modeline
<dapsaille2> i modified the .fex script
<Turl> you may want to ask in #olimex
<oliv3r> Turl: i don't think so, the sync comes from LCD1; but the RGB lines come from the 'tv-out' modulator
<dapsaille2> ok i'll try
<Turl> oliv3r: I haven't really looked into it
<Turl> oliv3r: but i know they had to do sth weird because a13 doesn't have those outputs
<dapsaille2> i can see that in xorg.log the modeline is OK, but .. no picture .. this modeline has been tested on an x86 debian and works
<oliv3r> Turl: hmm, *grabs the manual*
<dapsaille2> they used lcd output for create a vga out
<oliv3r> i can't imagine they bit-banged vga on LCD
<Turl> oliv3r: there's lcd 2 vga chips I think :p
<oliv3r> ahh external component, ok
<oliv3r> that i can imagine
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<slapin> Turl: I compile android 4.3 for 45 min on i7/8G and for 40 min on i7/16G so YMMV
<oliv3r> they use 6 chips to do LCD _> VGA
<Turl> slapin: turn on ccache :p
* slapin wants some xeon but damn they are pricy :(
<slapin> Turl: always on, I mean scratch build, incremental are within minutes
<arokux> slapin: do you approx. know how those numbers will change with Xeon?
<slapin> arokux: I am 100% sure that will give me x2 speed increase, as I've already tested that
<Turl> slapin: yeah, scratch (rm out/target -rf kind)
<arokux> slapin: that is one Xeon or a dual CPU set up?
<slapin> arokux: dual Xeon on 4-way motherboard, minimal configuration I could get (for commercial project)
<slapin> arokux: some supermicro platform
<slapin> arokux: can't remember the details, but something low-end
<arokux> slapin: doesn't matter, thanks for the info!
<slapin> arokux: the xeon is good for speedy memory speedy disc controllers, and well-done parallelism, which is the best trio for build servers
<slapin> arokux: and faster raw performance
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<oliv3r> Turl: they use 2 'octal buffer/line driver' per color channel to convert the digital RGB to analog RGB signals, very cool how they did that, so you shoudl treat it as a LCD interface i'd expect
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<slapin> Turl: octal buffer/line driver is just resistor-based DAC, as I see
<slapin> Turl: should be cheap and work well
<slapin> Turl: but prone to be variadic on temperature changes
* slapin tries to be funny
* arokux never heard of SuperMicro before
* wens thinks about getting a cubietruck
* dapsaille2 banghead against crt tv
<oliv3r> SuperMicro makes awesome server boards
<oliv3r> wens: olimex is sweeter :)
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<dapsaille2> supermicro offer really great motherboards
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<oliv3r> and i think there's a few even supporting coreboot
<wens> oliv3r: i already have a cb2. want something with gbe
* wens thinks gmac on cb2 won't work
<oliv3r> if you get a pin-compatible module .. it probabyl won't :p
<oliv3r> wens: butt yeah ct is only GBE module for now
<wens> oliv3r: i think A20 gmac pinout only supports rgmii
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<oliv3r> wens: dno't think so, but the PHY used on the CB3 is the limitted rgmii only one
<wens> but i'll keep testing
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<wens> would be nice to have a working sample
<arokux> wens: what will you test?
<wens> arokux: since gmac and stmmac are almost identical, trying to get stmmac to work with gmac on sunxi-next
<arokux> torbenh3: did some work on it too, last weekend. you both may want not to duplicate yourselves.
<wens> arokux: were you talking to me?
<arokux> yes (remove ":")
<arokux> wens: nobody has started to add gmac to u-boot though. as I said, I've just dropped the code and it did not work. I'll try your suggestion and fix base address
<oliv3r> arokux: i assume you only put in the gmac driver, not the entire u-boot from a31 right? :)
<arokux> oliv3r: right.
<oliv3r> good good :)
<torbenh3> wens: yeah. using stmmac is probably the way to go.
<wens> arokux: you'll also have to change the pinmux values, from 0x2 to 0x5, and probably add a few missing ones
<arokux> wens: oh...
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<tomee^> hi
<torbenh3> if (of_device_is_compatible(np, "st,spear600-gmac") ||
<torbenh3> of_device_is_compatible(np, "snps,dwmac-3.70a") ||
<torbenh3> plat->has_gmac = 1;
<torbenh3> plat->pmt = 1;
<torbenh3> of_device_is_compatible(np, "snps,dwmac")) {
<torbenh3> }
<wens> there's this wierd piece of code in gmac: "#ifdef SUN7i_GMAC_FPGA"
<wens> wonder what it does.. the pin function mentioned in that section doesn't exist in sun7i manual
<tomee^> does anyone here have had experience with cubietruck/cubieboard v3? it seems to be very similar, but somehow I run into various trouble when following cb2/a20 tutorials
<wens> torbenh3: i have stmmac compiled, and dts updated. i don't know if the driver has actually initialized the gmac.
<tomee^> very similar to cb2 that is
<wens> mdio probing yields no phy
<torbenh3> wens: sure, you got the pinctrl right ?
<wens> torbenh3: looks right, PA01 ~ PA16 to gmac
<oliv3r> wens: that's for FPGA development, when the chip was just an FPGA and not a real chip yet
<wens> oliv3r: I see
<oliv3r> wens: you can concider it #if 0
<chkktri> ah, great, everything works
<wens> torbenh3: come to think of it, maybe gmac isn't defined in pinctrl yet...
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<wens> ok, just checked, it is
<arokux> chkktri: you mean sound? what about perf?
<chkktri> both
<arokux> tomee^: you need to be more clear. what fails exactly, what error messages you get etc. etc. etc.
<arokux> chkktri: how did you improve perf?
<chkktri> CPU was indeed running at 60MHz most of time
<chkktri> changed cPU governot to perfomance
<chkktri> CPU* governor*
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<arokux> chkktri: did you do this? http://linux-sunxi.org/Cpufreq
<chkktri> yep
<tomee^> arokux: for one thing, I have doubts about the bootloader. the pre-built sdcard distros don't seem to boot (script.bin differences I guess). the "lubuntu" example distro (from cubieboard.org) does boot but is completely bare - will take ages to figure out right branches of libhybris etc.
<chkktri> now i have a question: anybody has docs on A10's CODEC? I wonder what playback rates are supported without resampling
<arokux> chkktri: scan the wiki man page, Hardware
<tomee^> arokux: moreover, in your wiki, there is a lengthy tutorial involving boot.scr, recompiling the u-boot each time you modify a parameter, whereas the bootloader that comes with the "example" distro only has... 3 files. uEnv.txt, script.bin (I know about bin2fex/fex2bin) and uImage. and it works.
<arokux> tomee^: can you show that page please?
<tomee^> arokux: I also spent a couple hours compiling the 3.4.61+ kernel (sunxi-mali tree->cubieboard fork). it does work, but when I try to send any packet through sunxi_gmac or bcmdhd, the kernel oopses. sata and usb work fine, though... and they are also gpio-dependent I guess.
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<arokux> tomee^: cubietruck just went on sale. I do not know what comes preloaded with it, but you probably cannot expect all the other stuff to work out of the box. no network for sure. your description is also way to general for us to start improving things. I assume you are just a user, so I'm not blaming you. however if you want to get help you'd need to be specific.
<arokux> tomee^: where have you got this kernel from?
<tomee^> arokux: I am just a user since I just got the cubietruck, probably first batch at all (which I didn't realize when I ordered the gizmo)
<tomee^> arokux: but I have experience with programming atmega chips so I am not a computer idiot
<arokux> tomee^: yes, congrats, you'd need to hack a bit to get it working 100% :)
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<arokux> tomee^: we here work on the community kernel aka sunxi-3.4 and mainlining. that one you show is not supported by us, although we take the code from there to make our sunxi-3.4 even better.
<arokux> tomee^: take a look at our branches here: http://sunxi.org/Linux
<arokux> tomee^: also, Benn from Cubietech (manufacturer of ct) told me in an e-mail he's working in this branch:
<tomee^> arokux: I understand, cubie forks your stuff, messes around, some things work, some don't, you don't support their branch, that's obvious.
<arokux> tomee^: maybe you'll have more luck with this.
<tomee^> arokux: but does your "vanilla" branch support cb3/ct1 or "not yet determined" ?
<arokux> tomee^: right. but we are very interested in taking their changes and putting them into sunx-3.4.
<arokux> tomee^: I do not know if somebody tried sunx-3.4 with ct, oliv3r ?
<tomee^> arokux: and about that wiki page: http://linux-sunxi.org/Optimizing_system_performance#Increasing_the_memory_clock_speed, "ecause the memory clock has to be configured at the beginning of the boot process, it is not straightforward to change the memory clock speed. It involves recompiling u-boot-sunxi and re-flashing the bootloader on your SD-card."
<tomee^> arokux: from what I learnt, it involves changing 1 parameter in script.fex which sits on an ext2 partition...
<plaes> hmm.. wpa_supplicant cannot set essid/keys for rtl8192cu card :S
<arokux> plaes: which board? which error?
<arokux> tomee^: hm.. wiki might be true. which parameter can you change?
<plaes> Gemei G9 and latest linaro-alip build
<plaes> ioctl[SIOCSIWAP]: Operation not permitted
<plaes> ioctl[SIOCSIWESSID]: Operation not permitted
<plaes> etc..
<plaes> arokux: ^^
<tomee^> arokux: [dram_para]/dram_clk in script.fex. or is it just an INDICATOR not a SETTABLE? (I thought the purpose of script.fex was SETTING parameters...)
<arokux> tomee^: yes, the purpose is to set params, you are correct.
<arokux> plaes: maybe you want to become root?
<plaes> I am
<Turl> tomee^: you cannot normally change the dram freq using script.fex
<Turl> it's there in case you use livesuit or so, which do read it and hardcode the bootloader to use that one
<tomee^> Turl: then what is that line doing in my script.fex (vendor-provided) ?
<Turl> that ^
<tomee^> aww, jeez.
<moofree> http://www.aliexpress.com/item//1283416435.html hmm this looks interesting, but I can only find it in pink lol
<arokux> plaes: no idea then, sorry.
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<tomee^> Turl: so most of things are settable via script.fex, but some need to be hard-coded into the bootloader and those parameters are then just indicators for a compiler to copy their value when burning ?
<arokux> moofree: Processor Model: BOXCHIP All Volunteers A20 :D
<Turl> tomee^: yes
<Turl> tomee^: changing the ram frequency wipes the ram contents
<Turl> tomee^: so it can only be normally set really early on boot
<Turl> and there's not much space to work there for a script.bin or such parser, mmc driver, fat/ext driver, etc
<tomee^> arokux: ok, summing up: 1) I involuntarily got myself a real "hot of the press" board instead of a typical documented barebone 2) you recommend I start with your kernel tree, cubie/sunxi-3.4 branch. 3) which distribution (or prebuilt image, help me God) do you suggest? aim=working 720p video
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<tomee^> Turl: hmm, bad news. and will it work with bootloader on sd, or only on nand (I guess it always goes through the nand one first, right?)
<Turl> tomee^: 1) dunno what you mean 2) yeah 3) any I suppose, linaro ubuntu or debian may be the easiest as libv has packages for those
<Turl> there's some cubie distributions and stuff you can find and just burn to a card
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<Turl> tomee^: if you have a suitable sd, nand is never touched
<tomee^> Turl: I have tried one of those "cubie" distros but they're for cb2... so it still involves hacking around the bootloader with unknown outcome...
<tomee^> Turl: ad. 1) I meant I didn't realize that I am ordering a completely new board when I clicked "buy" ;)
<Turl> tomee^: what hw do you have? I somehow thought you said cb2
<tomee^> I thought ct1/cb3 was around for like half a year.
<Turl> ah, ct
<Turl> more like a month or two if anything
<tomee^> but it seems that production really started on ~20-th oct or something
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<Turl> cb2 has been out for longer
<wens> tomee^: it was announced half a year ago
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<torbenh3> fedora19 booted fine on ct
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<tomee^> Turl: http://cubieboard.org/2013/10/30/cubieboard3-cubietruck-is-all-ready/. 30th oct. mine got shipped the day after.
<tomee^> torbenh3: thx, I somehow skipped fedora-related stuff so far (debian/ubuntu user mostly).
<tomee^> torbenh3: do you know what's the status of cedarx/cedarv/libve/hybris in this distro?
<tomee^> torbenh3: preinstalled, available prebuilt, or need to recompile everything?
<torbenh3> tomee^: nope. i dont know the root password of it, and i didnt bother yet. after looking at the kernel source, i found it offensive, and i need to get mainline ready :>
<tomee^> so I'm still in the dark ;)
<tomee^> I tried the "let's build it from the grounds up" approach since I have access to lots of CPU
<tomee^> but since the custom-crafted kernel crashes on network all plans collapsed...
<tomee^> "The Wifi driver haven't been merged to linux-sunxi kernel, so the module doesn't work currently on r3 version. But a working wifi driver can be found at github.com/cubieboard2/linux-sunxi branch sunxi-3.4-ct-v101. "
<tomee^> another great news ;)
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<tomee^> ok, one last question for now. your libhybris wiki page is not very idiot-proof. should I copy all of android's NAND system/lib to /system/lib, to the hybris build dir or where? I tried mkdir -p /system/lib && cp -aR /nandd/lib /system/lib && make install, but the test binaries crash ;(
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<deasy> https://groups.google.com/d/msg/linux-sunxi/D-2cICv9zbI/9X3086X6bmMJ It sounds bullshit to me but maybe i'm wrong
<deasy> i don't think it needs simd like this work is not reencoding of the video
<dapsaille2> is there is any fex option that permit to specify that hsync and vsync are negatives ?
<dapsaille2> for video signals of course :)
<oliv3r> dapsaille2: you can hack that into the fex quite easily, you'd have to modify the driver to behave accordingly :)
<oliv3r> patches welcome :)
<dapsaille2> well ... humm .. patches ... heuu ... patch -n p0 ? :)
<dapsaille2> i will look at source code .. if i'm not back in one hour please tell yo my wife that i loved her :)
<deasy> French guy detected
<dapsaille2> damn .... spotted ..
<deasy> salut :D
<dapsaille2> salut :)
<deasy> you should be registered on the wiki and complete it as it seems hard ton configure uboot
<deasy> to*
<dapsaille2> ok but .. it may not be a -sync -vsync problem as i can read in xorg.log that the modeline is -hsync +vsync
<dapsaille2> -vsync sorry ..
<deasy> you use vga out?
<dapsaille2> yes, on an a13
<dapsaille2> dumb question . which uboot fb olinuxino a13 use ?
<dapsaille2> forget it please .. i'm looking in board dir
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<slapin> hi, all!
<dapsaille2> o/
<slapin> do we have support for graphics in u-boot?
<oliv3r> slapin: no
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<oliv3r> slapin: wingrime was playing with it, but couldn't get it to work (yet)
<dapsaille2> well .. i cannot find which fb is used for a13 in u-boot for tweak hsync vsync
<oliv3r> but it's def. a 'nice to have' feature
<oliv3r> dapsaille2: there is no graphics/fb support in u-boot
<oliv3r> until the framebuffer driver kicks in, your blind
<dapsaille2> ok .. so i need to tweak linux-sunxi sources for modify hsync vsync polarity ?
<oliv3r> dapsaille2: if it can't be done with ffex, then yes
<dapsaille2> thanks
<dapsaille2> looks like fex don't provide such option .
<dapsaille2> humm .. i cannot find anuything related to hsync and vsync in lcd drivers .. but in hdmi drivers it exist .. sounds bad for me
<Skaag> oliv3r, that's good news that it's been fixed. do you know how to search for it in the ML? I would love to find it.
<Skaag> I mean some keyword to find it by
<oliv3r> i think on the wiki i'll be easier to find
<oliv3r> gotta restart screen; brb
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<mnemoc> gmane has search
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<oliv3r> there, 8 bit color goodness, must beter then 3 bit colors!
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<arokux> tomee^: still there? our kernel is sunxi-3.4, you'd like to grab stage/sunxi-3.4 and tell us what is missing there if comparing to the manufactures kernel.
<tomee^> ok
<tomee^> will do
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<arokux> tomee^: thank you in advance :)
<tomee^> the bcmdhd driver I guess
<tomee^> without looking ;)
<arokux> tomee^: ok :)
<arokux> tomee^: I've updated http://linux-sunxi.org/A20-Cubietruck#Status_of_the_community_kernel_.28sunxi-3.4.29_.2F_U-Boot
<arokux> tomee^: you can continue :) thanks!
<tomee^> ;)
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<dapsaille2> where to find informations regarding lcd driver option = lcd_if = 0; /* 0:hv(sync+de); 1:cpu/8080; 2:ttl; 3:lvds * ?
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<arokux> http://linux-sunxi.org/Fex_Guide#lcd.5B0.2F1.5D_configuration
<arokux> dapsaille2: or somewhere around it.... (I have no idea)
<dapsaille2> :) thanks
<dapsaille2> so if i use vga output i'd better use ttl no ?
<tomee^> so far, I can tell, the prebuilt images are a mess... ;(
* arokux has no idea
<tomee^> the "custom" ones
<tomee^> the packages are either very clumsy or have little idea of what they're doing
<arokux> tomee^: always be specific plz. "this and that didn't work, because ...."
<tomee^> arokux: it's just a general statement about some images that I have tried (linaro-raring-xbmc, cubian, cubieez)
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<arokux> tomee^: just add your finding to: http://linux-sunxi.org/Bootable_OS_images under a specific item
<arokux> tomee^: be bold, it is a wiki
<tomee^> would take more time than to fix those images sometimes ;)
<tomee^> but I will definitely have A LOT of comments when I achieve what I wanted
<tomee^> now I am stuck under a pile of microsd cards and 30 consoles with dd etc.
<arokux> tomee^: :)
<tomee^> i wanted to try the vdpau thing, but building vlc is such a pain in the ass...
<tomee^> cross-compiling is not perfect, too
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<arokux> tomee^: what is the problem with the latter (I have cr. compiled only kernel and u-boot)
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<tomee^> arokux: build scripts/autotools are often broken
<tomee^> arokux: and will select optimization flags of the host, not target cpu for example
<arokux> tomee^: I've been told one should build on the ARM board because of that.
<tomee^> yeah
<tomee^> but compiling on a couple hundred xeon cores with ssd storage seems a little bit faster
<tomee^> like, 2-3 minutes for the kernel instead of half a day
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<arokux> tomee^: :) kernel and u-boot is no problem on the host, we do it 100 times per day, no problems so far (you should pick gcc 4.7, not 4.8)
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<arokux> tomee^: other software... ask libv
<tomee^> vlc...
<tomee^> AGES
<arokux> tomee^: there is also: http://linux-sunxi.org/Packages
<tomee^> I am aware of that, but haven't tried out yet
<wolfy> would the use of fbturbo be of any help if I need to display on a cubieboard2 several mjpeg video feeds ( security cameras ) in the same time ?
<arokux> libv: ^
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<libv> tomee^: kernel and u-boot are cross
<libv> tomee^: other bits you usually do not need to bother with
<libv> fbturbo has ubuntu packages, then there is the mali binary drivers for which there is a howto, then there is the cedarx stuff...
<libv> but for an armhf enabled distribution, the amount of work needed is usually limited
<libv> i personally compile libump/fbturbo/mesa on the target (as i have a quad core exynos to do it for me)
<tomee^> i see
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<torbenh3> i use an arm chroot with qemu-user-static if i need to build big things.
<mnemoc> <3 qemu-user-static
<libv> how fast would qemu be?
<libv> i have a quad A9 running at 2GHz with 2GB ram, and, sadly, a hd connected over usb2.0
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<mnemoc> libv: much faster than doing the same directly on target hardware :p
<libv> my quad core 2nd gen intel core at 2.5GHz, emulated, probably is not worth the hassle
<libv> mesa packaged in 21 minutes?
<torbenh3> libv: exynos is going to be faster, i guess. but io with qemu-user is native...
<libv> yeah, io is where exynos is really let down, only getting like 23-25MBps
<libv> but that usually only matters when running make install or creating the actual packages
<torbenh3> how big is mesa, compared to qt ?
<libv> on an A10, qemu definitely wins, on A20 one can start to wonder whether having 2 different installations (one qemu, one on target) really makes sense for the few bits that you need to compile, on exynos44, i really do not think it is worth the hassle
<libv> torbenh3: with debian packages built and 2-3 copies of the binaries in the tree, 2.3G
<torbenh3> well... the buildsystem is falling out of our image generation process ;) so i have them lying around for free.
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<deasy> arokux, which distro you use for build kernel?
<arokux> deasy: Arch
<arokux> deasy: any distro will do
<arokux> deasy: I grab gcc-linaro...
<deasy> the crosscompiling suite use own c lib ?
<arokux> deasy: yep\
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<arokux> deasy: you'll start kernel hacking?
<deasy> nop :p
<deasy> just build myself stuff
<tomee^> libv: plus, 16 SSDs in RAID10 are a bit faster than one SATA drive, or even SSD drive, if I was crazy enough to spend 200$ for hdd to plug into a $100 board
<tomee^> libv: and this makes A LOT of difference in stuff like git clone, ./configure etc.
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<arokux> tomee^: git clone is network bound, though?
<tomee^> arokux: git clone, right, ok, but syncs, merging, all other file operations are not
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<WarheadsSE> tomee^: distcc
<tomee^> distcc on what?
<WarheadsSE> that should solve your host vs dest problem
<tomee^> on 1 cubieboard? :-)
<WarheadsSE> do the preparse/configure ont he device, offload the CC to an x86 machine
<WarheadsSE> Even on that, yes
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<rodrigo___> Hello.
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<rodrigo___> Could someone help me? I would like to install linux on my a1000g allwinner a31 but i don't know where to start even with this tutorial. -> http://xen_on_arm.farbox.com/post/mele_m9_upstream_kernel
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<deasy> rodrigo___, you want to build your linux especially? else you can probably use a distro for it
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<rodrigo___> deasy, i wanna use a distro
<rodrigo___> sorry for late answering
<rodrigo___> But i don't understand what i really need to do, could you help me?
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<arokux> rodrigo___: your biggest problem is that A31 is not really supported by us.
<arokux> rodrigo___: so I do not know you what kernel I can suggest even.
<rodrigo___> Hmm i see, so what is this? Isn't it a tutorial for getting linux on my arm device?
<rodrigo___> ok let me look
<arokux> rodrigo___: it is, that is the tutorial how to build mainline kernel for A31
<arokux> rodrigo___: but mainline has almost no features AT ALL
<rodrigo___> hmm i see, what are the features of mainline? I mean, all i wanted was getting a good distro like ubuntu or arch working on my device.
<rodrigo___> I'm very newbie to linux, but i can get it working with a proper tutorial
<arokux> rodrigo___: no support for SD card, no USB support...
<arokux> rodrigo___: for A31 maybe not even network
<rodrigo___> hmm i see, so i should keep with my android
<arokux> rodrigo___: short: you do not want to use it unless you want to help with kernel development
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<rodrigo___> hmm ok thank you arokux
<rodrigo___> but do you know if it will be compatible one day?
<arokux> rodrigo___: that said, PengPod was doing something
<rodrigo___> usb, sd, optical audio outpit
<rodrigo___> I don't know how i can help...
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<rodrigo___> What was PenPod doing? I'm curious hehe
<arokux> rodrigo___: take a look at: Here is a list of the currently booting OS/Distribution options
<rodrigo___> Hmm thanks
<deasy> re sorry i was busy
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<arokux> rodrigo___: so try to find something by PengPod, if you find, please report it here, ok?
<deasy> rodrigo___, no official website for your product with a specific distro build ?
<rodrigo___> Official website online have .img file for android
<rodrigo___> is that it?
<deasy> argh
<rodrigo___> What do you need, i could ask ..
<deasy> it don't smell good :p
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<arokux> rodrigo___: that *.img is the one that is preloaded on your hardware
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<rodrigo___> i use that .img file to burn android to my device
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<rodrigo___> so i think yes ?
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<rodrigo___> arokux, no official website for your product with a specific distro build ?
<rodrigo___> arokux, what you mean?
<arokux> rodrigo___: me? that was deasy
<arokux> mripard: how up to date is this? https://github.com/mripard/linux/commits/sunxi-next-a31
<deasy> rodrigo___, a website for your product where distro are provided
<rodrigo___> ok
<arokux> deasy: he has Mele
<arokux> they do not provide anything except android
<deasy> okay ^^'
<arokux> but apart from this they are nice guys!
* deasy note don't buy mele
<rodrigo___> haha
<rodrigo___> don't buy! unless you wanna wait 5 months for a propper upgrade!
<arokux> deasy: you could buy, but not A31-based device - we lack proper support for that
<deasy> yes true
<deasy> a10 a20 are better :p
<arokux> because of the evil powervr......\
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<deasy> yes EVIL powervr!
<arokux> rodrigo___: why have you bought it? :P
<deasy> without check support :/
<rodrigo___> Thought i was good
<arokux> rodrigo___: well, it is good for what it was promised :)
<rodrigo___> right now it is
<arokux> rodrigo___: nobody told you it won't run Linux distro of the box... :)
<arokux> rodrigo___: now? why only now?
<rodrigo___> Because i preffer linux desktop to android, there are alot of incompatabilities.
<rodrigo___> But by what you said, seems to be worst right now on linux distro
<arokux> rodrigo___: ok.. so you thought you're buying a hacker friendly device, right?
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<rodrigo___> yes hehe
<arokux> rodrigo___: so the point is -- it is not. :(
<arokux> rodrigo___: A20/A10 based Meles are fine.
<rodrigo___> so the problem here is that the brand doesn't provide official linux distro?
<rodrigo___> hmm i see, thanks for the info
<arokux> rodrigo___: brands never provide linux distros
<arokux> rodrigo___: such folks like you provide them :)
<arokux> and like us
<rodrigo___> i see
<rodrigo___> community
<arokux> rodrigo___: nobody is interested in Linux distro what so ever.
<deasy> several hackers here write code for support these SoC
<arokux> they ship Android and that is their only goal
<boycottg00gle> android sucks
<deasy> Allwinner is a bit different , they provide sata controler
<rodrigo___> android sucks
<deasy> but most SoC don't have it
<arokux> rodrigo___: if you buy something like Cubietruck/Cubieboard/Olimex Board -- those guys use our distros and help with developing.
<deasy> lot of them are not minicomputer oriented
<deasy> that's why they doesn't provide linux distro
<rodrigo___> Well thanks alot for the information
<rodrigo___> i really appreciate
<rodrigo___> need to leave!
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<deasy> it was m9 or a1000g?
<arokux> a1000g
<arokux> deasy: when will you start kernel hacking?
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<deasy> :o
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<deasy> says a1000g support here
<deasy> but it seems wrong
<deasy> or two version...
<deasy> ?
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<deasy> for?
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<arokux> deasy: for giving links to the messages on mailing list
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<deasy> arokux, this user had not leave message on ML
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<arokux> https://groups.google.com/forum/#!topic/linux-sunxi/PLgUj-KefKQ -- this is link to the message on ML
<deasy> ...which message on ML ?
<deasy> He have just ask here
<arokux> <deasy> says a1000g support here
<arokux> <deasy> but it seems wrong
<deasy> i have already answer on this ML
<arokux> ok
<arokux> c u later
<deasy> you have confuse me with talk about the other ML
<deasy> yep sleep :p
<arokux> this is the *same* ML
<arokux> linux-sunxi
<deasy> hmm okay...
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<deasy> it's a fusion of two ML
<deasy> so i have receive a message from the fedora ML than i'm not authorized to post.
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<mripard> arokux: very old. it's been merged in 3.21
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<dapsaille2> any vga modelines guru logged ? :)
<dapsaille2> i offer .... an e-sandwich to who can help me to make this old tv crt works with olinuxino a13 :)
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<deasy> dapsaille2, try with a beer over ip !
<dapsaille2> hehe
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<deasy> or a glass of wine ?
<dapsaille2> a bottle ^^
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<Upgreydd> Hi all, i have a question about Mele A2000, i've done this tutorial http://archlinuxarm.org/platforms/armv7/allwinner/mele-a100 but mele isn't booting to linux, any idea how i suppose to do?
<deasy> Upgreydd, it's a a31?
<mnemoc> weee... finally managed to try my CT
<Upgreydd> deasy: A31? what do you mean? It's A10 Allwinner
<deasy> ok
<mnemoc> the mele-a100 is an old mele-a2000 without sata connector
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<Upgreydd> deasy: when i use this image: http://guillaumeplayground.net/mele-a2000-ubuntu-12-10-armhf-nand-xbmc/ everything's fine, it's booting but i wanna Arch Linux distro ;) Should i replace some of mine files from SD Card to this from image?
<deasy> Upgreydd, archlinuxarm don't provide image uptodate, only the root is updated. I think it's community build and it's not well followed
<Upgreydd> deasy: sooo what distro can you sugest me?
<deasy> you can use the kernel of this ubuntu
<deasy> but maybe it's probably other thing who is different
<Upgreydd> deasy: I see :/
<Upgreydd> deasy: can you suggest me some uptodate distro? ;]
<deasy> i don't know distro for mele
<deasy> (i don't say it doesn't exist)
<mnemoc> device specific is only the u-boot spl and the script.bin or myboard.dtb
<deasy> yes the kernel of arch should boot
<Upgreydd> mnemoc: in mele case is script.bin ;]
<mnemoc> depends on which mele
<arokux2> Upgreydd: hey, so is it sun4i?
<Upgreydd> arokux2: yes it is.
<mnemoc> Upgreydd: look at the sunxi-boards repo
<deasy> a1000g is in the a10 list :)
<deasy> so two version maybe...
<arokux2> deasy: you've got reply on the ML
<Upgreydd> mnemoc: deasy A1000 is the same as A2000
<deasy> Upgreydd, it's not for you, it's about someone with an A31
<arokux2> Upgreydd: you grab arch distro and build kernel yourself, and it rocks ;)
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<mnemoc> Upgreydd: get the .fex from sunxi-boards
<Upgreydd> arokux2: have you some tutorials how to build kernel for ARM? I know how to build kernel for PC, but not for this ARM things... ;]
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<arokux2> Upgreydd: we have, and they are very good, but you still can improve them!
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<Upgreydd> arokux2: OK, so i'm trying ;) Thanks a lot for you and deasy :]
<deasy> it seems than some a1000g had a a31
<dapsaille2> do you think that hotswitching resolution will be possible on a1x cpus one day or there is serious hardware limitations ?
<arokux2> ssvb: ^
<Upgreydd> deasy: i have A2000G
<arokux2> Upgreydd: hint - grab our u-boot too.
<dapsaille2> i'm waiting for it's return ^^
<deasy> Upgreydd, i always talk about an other person :p
<mnemoc> there are a1000g with A10 and A31 :\
<mnemoc> then they changed the name to m5 and m9 iirc
<Upgreydd> i have a10 version ;]
<mnemoc> keeping a1000g and a2000g as A10
<deasy> Upgreydd, yup we know we know, the good version hehe
<mnemoc> be sure to use the right SPL due to memory initialization
<arokux2> mnemoc: fix dpl please
<mnemoc> arokux2: where is the patch? :p
<Upgreydd> mnemoc: SPL, uBoot... i don't understand at all ;] I'll look into tutorial :P
<mnemoc> arokux2: I simply cloned their repo
<arokux2> mnemoc: you are the wiki bos
<mnemoc> Upgreydd: SPL is a very small u-boot which initializes the ram and then loads the fat u-boot
<arokux2> boss
<deasy> Upgreydd, uboot is the piece for boot your kernel
<mnemoc> arokux2: no, Turl is.
<deasy> it's a bootloader
<arokux2> Turl forwarded you to me! :)
<arokux2> me to you!
<arokux2> :D
<Upgreydd> ok, i've got it ;)
* mnemoc has not been forwarded yet
<mnemoc> i've been many things, but never packaged and forwarded
<arokux2> mnemoc: there you have it: http://sprunge.us/GIDb
<arokux2> mnemoc: can you throw that query at DB and see what happens?
<n01> mripard: since we are using iio just for raw reading does it make sense to put the sampling rate in sysfs?
<n01> I'd leave it in dts
<oliv3r> wouldn't it be nice to change the rate on the fly?
<oliv3r> in standby, sample very rarly
<arokux2> oliv3r: will you u-boot 2GiB-patch be accepted upstream?
<n01> oliv3r: it's pretty useless IMO since you are doing raw readings
<Upgreydd> mnemoc: so i should made bootable sd card and extract arch into rootfs... and it should working? Should i build uboot, script.bin and kernel or just use this from arch linux?
<arokux2> your*
<n01> cat /sys/blabla/adc
<oliv3r> arokux2: i don't see why not; and it's not even all 100% needed; but there's a bug, and I asked 3 times about it, they kept arguing about random stuff
<arokux2> oliv3r: :)
<oliv3r> so hno needs weigh in his heavier voice
<arokux2> oliv3r: you do the same some time ;)
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<arokux2> hno: has abandoned us
<Upgreydd> arokux2: so i should made bootable sd card and extract arch into rootfs... and it should working? Should i build uboot, script.bin and kernel or just use this from arch linux?
<n01> oliv3r: I mean that the adc is started only when you read from sysfs
<oliv3r> if you read the mailinglist, they haven't even looked at the patch, just some bla bla
<oliv3r> n01: for lradc? but how will it trigger an interrupt while asleep to wake the device ;)
<arokux2> oliv3r: you are right, you at least look at the patch
<n01> oliv3r: atm I'm not intersted in triggers
<Upgreydd> deasy: so i should made bootable sd card and extract arch into rootfs... and it should working? Should i build uboot, script.bin and kernel or just use this from arch linux?
<oliv3r> arokux2: i try to :)
<ssvb> dapsaille2: hotswitching the screen resolution is possible even now
<dapsaille2> hot switching ?
<dapsaille2> in fb or xorg ?
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<dapsaille2> didn't find anything related to this, i'm trying to use a 15.6khz monitor trough vga connector and i only get a black screen .. so if i could use Xorg modelines instead of editing script.fex everytime it would be perfect for me :)
<ssvb> dapsaille2: if you are looking for a perfect solution, then there is none yet :)
<dapsaille2> hehe :)
<arokux2> Upgreydd: you build by your self: script.bin, u-boot, kernel. then you combine it with rootfs from Arch world.
<dapsaille2> anyway, if i can change resolution without rebooting, it's ok
<dapsaille2> do you have any link/docs ?
<arokux2> Turl: can you take a look at this? http://sprunge.us/GIDb many thanks!
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<dapsaille2> and .. did you tried to use an old crt tv trough vga ? i cannot find anyone who have tried this so ... i'm not sure it possible and i lack knowledge of arm/sunxi world ...
<dapsaille2> of course, i can do it with x86 debian ^^
<Upgreydd> arokux2: but i should use script.fex from sunxi board or somehow take it from my device? :P
<mnemoc> check if it's in sunxi-boards first
<Upgreydd> arokux2: https://aur.archlinux.org/packages/linux-sun4i/ do i need this?
<arokux2> mnemoc: have you touched the wiki engine?
<mnemoc> nope
<Upgreydd> arokux2: mele_a1000g.fex is mine
<arokux2> Upgreydd: no if you build you kernel by yourself
<Upgreydd> arokux2: ok, thank you :]
<ssvb> dapsaille2: for vga I only used fex so far
<arokux2> Upgreydd: nice, so somebody has done that bit for you
<mnemoc> arokux2: it's stock REL1_20 + extensions, all running from git/svn and updating automatically
<dapsaille2> damn .. no hdmi output on my a13 olinuxino ... did you used a 15khz monitor trough vga with fex parameters ?
<arokux2> mnemoc: now even categorytree renders incorrectly i.e. different
<arokux2> mnemoc: not + and trees
<arokux2> no*
<mnemoc> upstream updates I suppose
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<dapsaille2> anyway hdmi to rgb scart/jama is not possible i think ^^
<arokux2> mnemoc: disregard, it was browser cache!
<mnemoc> :D
<arokux2> jemk: have you tried GMAC with sunxi-3.4?
<ssvb> dapsaille2: what is the complete modeline for that 15khz mode? I used the standard resolutions which are configurable via fex (800x600, 1280x720 and 1920x1080), and they work
<dapsaille2> there is many .. final goal is to emulate old video systems ... exemple SNK Neo Geo = Modeline "384x224" 7.552440 384 400 435 486 224 240 243 259 -hsync -vsync
<hramrach> arokux2: gmac wfm with sunxi 3.4
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<dapsaille2> i've successfully transmlated to .fex parameters (confirmer by xorg.logs) but i only get a black screen ... i don't know where i fail :x
<arokux2> hramrach: post patches please, so it can be added
<hramrach> I did not make them
<hramrach> they are in cubieboard repo
<arokux2> hramrach: maybe you have github branch for that?
<arokux2> hramrach: so you just grabbed that kernel?
<hramrach> github.com/cubieboard/linux-sunxi
<hramrach> Branch cubie/sunxi-3.4
<hramrach> no, just the gmac patch
<hramrach> tried the wifi patch as well but that one did not work
<mnemoc> wth..... preempt_count() = 0; <--- is this thing legal C????
<hramrach> probably not
<mnemoc> [linux-sunxi] [PATCH 3.4] sun7i:axp209: Fix "BUG: scheduling while atomic" messages
<mnemoc> by patrick wood
<hramrach> you are missing a * or a = for it to be legal
<mnemoc> would you mind commenting the mail? :p
<mnemoc> it's from today
<hramrach> I have no idea what the code is supposed to be doing
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<mnemoc> hramrach: he is "fixing" http://sprunge.us/iJbM
<mnemoc> but that line makes me o_O
<hramrach> does it compile?
<hramrach> actually it may be a macro which is then technically legal
<hramrach> possibly
* arokux2 thinks the same
<mnemoc> if the function is returning a pointer, it's "legal".... but still wtf-ish
<hramrach> no, you would need an asterisk then
<mnemoc> true
<hramrach> if it compiles it's legal ;-)
<arokux2> mnemoc: will it compile?
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<kz1> I'm trying to use /proc/sys/kernel/random/uuid for the value in /sys/class/android_usb/android0/iSerial "on init". I have added a script but the call to service doesn't seem to kick in or it's overwritten. is it possible to set a dynamic variable in init.rc files?
<hramrach> mnemoc: but while you are looking at patches try cherrypicking the gmac patch from cubieboard repo
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<arokux2> hramrach: how was ct so far for you?
<mnemoc> hramrach: I prefer to merge it from a pre-cherrypicked branch for-amery on your repo ;-)
<arokux2> mnemoc: what are you doing yourself? :p
<mnemoc> CC drivers/power/axp_power/axp-mfd.o
<mnemoc> LD drivers/power/axp_power/built-in.o
<mnemoc> LD drivers/power/built-in.o
<mnemoc> not even a warning.... uh
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<mnemoc> arokux2: script.bin to platform_device generation
<arokux2> #define preempt_count() (current_thread_info()->preempt_count)
<mnemoc> doh
<mnemoc> that explains it
<arokux2> I'll ask my students: what "preempt_count() should be so that preempt_count() = 0; compiles", nice question right? ;)
<mnemoc> :D
<mnemoc> but feels weak as hell
<mnemoc> if the macro is made function looking is because eventually it's expected to become a real function
<arokux2> git grep "preempt_count() ="
<arokux2> mnemoc: doesn't look like that is going to happen
<mnemoc> ok
<mnemoc> :)
* arokux2 will have another try with GMAC at U-Boot
<mnemoc> please, uSD exchanging is annoying :|
<arokux2> tell it oliv3r
<hramrach> arokux2: it's been troublesome. Finally I have working gmac but WiFi, BT, VGA is broken with sunxi
<hramrach> supposedly working with the cubieboard kernel but meh
<arokux2> hramrach: you may want to extend this TODO...: http://linux-sunxi.org/Cubietruck#Status_of_the_community_kernel_.28sunxi-3.4.29_.2F_U-Boot
<hramrach> if they patch it in already can't they send the patches too?
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<arokux2> hramrach: I am asking myself the same
<arokux2> hramrach: but they donated boards to us.. so not that bad.
<mnemoc> even olimex fails to do that
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<arokux2> even??
<arokux2> why even?
<mnemoc> cubietech is chinese
<mnemoc> olimex is an oshw european company
<mnemoc> and they just keep their own tree, patch and fix things and post on their blog
<arokux2> so what? :)
<arokux2> yeah I do not like their blogging culture too.. they probably want to attract users to their web site
<mnemoc> if a european vendor doesn't understand the value of submiting the f* patches, don't expect the chinese ones to do so
<mnemoc> fixes that solve problems on olinuxino boards are already for people owning olinuxinos.... no need to "attract" them to their web site... they are already customers!
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<arokux2> mnemoc: hm.. cannot disagree with you
<oliv3r> heh, i always small uSD
<mripard> n01: no, it's not hardware description, and every user might want a different one, or change it on the fly (just for example to make shannon happy)
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<oliv3r> i thought olimex sends those very limitted of number of patches they generate to devs
<mnemoc> we are giving olimex boards a prime location in our wiki's Main Page, but they still prefered to create their own *closed* wiki
<mnemoc> and document there
<oliv3r> but they aren't software people, they dn't write patches really
<mnemoc> they do... and publish the fixes on their github and blog
* arokux2 never saw mnemoc so angry
<mnemoc> ugly as hell fixes, but fixes anyway
<mnemoc> arokux2: not angry. frustrated
<arokux2> <wens> arokux: you'll also have to change the pinmux values, from 0x2 to 0x5, and probably add a few missing ones
<arokux2> what could that mean?
<mnemoc> i'm not a business person and that's probably why I fail to see their PoV
<mnemoc> arokux2: pinmux value is the "feature" selected for each pin
<arokux2> where are those pinmux here: http://git.rhombus-tech.net/?p=u-boot.git;a=blob;f=drivers/net/sun6i_gmac.h;h=d9280df31c24d9adf2e4a2e0e008e8ef6ca88be3;hb=refs/heads/allwinner-sunxi-a31
<arokux2> ?
<oliv3r> they don't think their patches are worthy of submission, it's only minor things that rren't intersting
<oliv3r> now the allwinner kernels on the rhombus wiki; now that's a whole nother matter ;)
<arokux2> oliv3r: where are they coming from?
<n01> mripard: I enable lradc and interrupt at each reading so in theory the irq returns after the first sample.
<n01> mripard: actually I don't know how useful all the raw reading since the lradc is used only for the button AFAIK
<mripard> you don't know that :)
<oliv3r> arokux2 allwinner :)
<arokux2> oliv3r: how recent are they?
<n01> mripard: hahah ok ... so for the sampling rate?
<oliv3r> arokux2: not very usually
<n01> considering that I'm using IRQ and single shot
<jemk> arokux2: no, sorry, had no time to try gmac. did you try?
<mripard> n01: it hastn't changed, it shouldn't be in the DT
<arokux2> jemk: I try it with u-boot
<mripard> you also have to consider two things
<mripard> n01: 1) once the property gets in the DT, you can't remove it
<mripard> n01: 2) do you really want to edit your DT every time you want to change the sampling rate?
<mripard> n01: 3) especially in the case where the DT would be stored in ROM
<mripard> (ok, it's three things)
<mripard> plus, the hardware is not involved at all here
<mripard> it's purely a user choice
<n01> ok, so hardcoded or sysfs
<arokux2> it was my effort to bring some EOMA ppl to our channel
<arokux2> I'm not sure you saw how I spammed their ML
<arokux2> now we have focus and we are helping each other :)
<n01> mripard: the preblem is that I don't think sampling rate is important in this case
<n01> since I do a one shot sampling
<n01> raw reading->irq->sample
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<n01> ups ... disconnected ... what did I miss?
<mnemoc> nothing
<n01> :( ok
<mripard> n01: if it's not important, then why are we having this discussion in the first place ? :)
<mripard> if you just want to hardcode it for now, I'm fine with that
<mripard> what I'm not fine with is to make it configurable through the DT. That's all
<n01> mripard: ok :) (thumb up)
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<arokux2> mii - MII utility commands
<arokux2> how can I use that to see if stuff works
<hramrach> which stuff/
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<arokux2> hramrach: GMAC refuses to work with u-boot, i want to troubleshoot
<hramrach> that's different mii then
<hramrach> the one on linux tells you what media settings you have and probably lets you change
<arokux2> sun7i# mii info 0x10
<arokux2> PHY 0x10: OUI = 0x0000, Model = 0x00, Rev = 0x00, 10baseT, HDX
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<arokux2> too many zeros
<hramrach> and 10baseT
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<hramrach> but why 0x10?
<hramrach> where does that number come from?
<arokux2> hramrach: what should be passed as that address? GMAC_GMMI_DATA or GMAC_GMMI_DATA?
<arokux2> or* GMAC_GMII_ADDR
<arokux2> 0x10 is GMAC_GMII_ADDR
<hramrach> I have no idea
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<jemk> arokux2: try mmi info 0x0 or maybe 0x1, that's the phy address, not the register address
<jemk> s/mmi/mii/
<arokux2> jemk: same shit
<jemk> arokux2: then it doesn't work i guess :(
<arokux2> jemk: thanks
<hramrach> arokux2: on emac mii info 0x0 gives nothing and 0x1 gives the emac info
<arokux2> hramrach: thanks, this is valuable info.
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<hramrach> so if it gives something for random numbers that's broken too. like 0x2 and 0x3 give nothing either
<mripard> arokux2: do you have your muxing right ?
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<arokux2> mripard: now I'm taking a look at all clocks address & bits
<mripard> arokux2: it seems right then
<nove> jemk, did you saw my message about VALGRIND_PRINTF ?
<hramrach> U-Boot 2013.10-rc2-08396-g6068143-dirty
<jemk> nove: yes, but no time for hacking these days
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<nove> jemk, ok, if you have ideas for viewer, please send them
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<oliv3r> feeding the troll! :p
<arokux2> oliv3r: what?
<mnemoc> i'm still unsure if he really is making that to advertise his shop, or he is doing it honestly
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<arokux2> MAYBE you should read doc/README.arm-unaligned-accesses
<arokux2> is it 8 byte wise?
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<arokux2> 4..
<mnemoc> aka 32bits :p
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<arokux2> sun7i# mii info 1
<arokux2> PHY 0x01: OUI = 0x0732, Model = 0x11, Rev = 0x05, 100baseT, FDX
<arokux2> ha!
<wigyori> woo
<wigyori> looks nice
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<arokux2> why only 100? :(
<arokux2> hramrach: take a look
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* dapsaille test
<wigyori> pong
<arokux2> hey wigyori
<arokux2> any cool stuff with mainline?
<oliv3r> arokux2: if your cable/switch is 100base, then that'sw hy :)
<oliv3r> arokux2: you could also be accidentally using the emac driver, which won't go above 100baseT
<arokux2> oliv3r: oh
<oliv3r> make sure to disable emac!
<arokux2> oliv3r: emac is disabled
<oliv3r> and pinmuxing changed?
<arokux2> oliv3r: yep
<oliv3r> good
<arokux2> oliv3r: but router is 100
<oliv3r> and you have gmac switch
<arokux2> oliv3r: can you take a look at something........?
<oliv3r> oh yeah
<arokux2> oliv3r: http://git.rhombus-tech.net/?p=u-boot.git;a=blob;f=drivers/net/sun6i_gmac.h;h=d9280df31c24d9adf2e4a2e0e008e8ef6ca88be3;hb=refs/heads/allwinner-sunxi-a31#l91
<arokux2> #define SOFT_RESET 0x00000001 /* Software reset gdma */
<oliv3r> i don't think we have dma in u-boot do we
<arokux2> GMAC_DMA_BUS_MODE_SOFT_RESET 0 Read/Write Software reset gdma
<arokux2> this is by jemk
<arokux2> oliv3r: the point is now it loops here:
<arokux2> ./arch/arm/cpu/armv7/sunxi/pinmux.c
<arokux2> oh sorry
<arokux2> /* Reset gmac and gdma */
<arokux2> printf("waiting on soft reset!\n");
<arokux2> while(readl(GDMA_BASE + GDMA_BUS_MODE) & SOFT_RESET)
<arokux2> writel(SOFT_RESET, GDMA_BASE + GDMA_BUS_MODE);
<oliv3r> arokux2: hmm, come to think of it
<oliv3r> there's one huge thing that can cause problems
<oliv3r> memory controller etc are completly diff
<arokux2> oliv3r: http://git.rhombus-tech.net/?p=u-boot.git;a=blob;f=drivers/net/sun6i_gmac.c;h=f52b11d84d85f6bb06f485d470dc72090273b185;hb=refs/heads/allwinner-sunxi-a31#l37
<arokux2> these things are not used...
<arokux2> maybe I should make sure clocks are properly set.
<arokux2> oliv3r: please elaborate
<n01> wigyori: I took over lradc, hope you don't mind
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<wigyori> n01: sure - got my hands full with my daily job
<oliv3r> arokux2: well sun6i is the ugly stepchild, stuff is a little different everywhere, especially how things interact
<oliv3r> and int he case of allwinner code, they integrated random stuff, like the Clock registers, into their drivers
<arokux2> oliv3r: what does it mean in practice?
<arokux2> oliv3r: and?
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<oliv3r> you can't assume that sun6i code for initing clocks, gates etc will be even remotly the same :)
<oliv3r> you can of course look at the sun7i lichee gmac driver fort hat info
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<arokux2> oliv3r: yes, i've changed lots
<arokux2> oliv3r: and that is why: PHY 0x01: OUI = 0x0732, Model = 0x11, Rev = 0x05, 100baseT, FDX
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<oliv3r> yeah just be weary that a lot of stuff might not be the same as sun6i on sun7i :)
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<arokux2> oliv3r: what about mem controller?
<oliv3r> complelty diff
<arokux2> oliv3r: what influence on gmac?
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<arokux2> mnemoc: what is size of w in u-boot?
<oliv3r> w?
<arokux2> md.w
<oliv3r> word, 32bits
<arokux2> oliv3r: GET_SYSCLK_SELF
<arokux2> oliv3r: any idea what for?
<oliv3r> context?
<arokux2> http://git.rhombus-tech.net/?p=u-boot.git;a=blob;f=drivers/net/sun6i_gmac.c;h=f52b11d84d85f6bb06f485d470dc72090273b185;hb=refs/heads/allwinner-sunxi-a31#l37
<arokux2> hm... all these func do not write, they only read
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<oliv3r> not sure, sounds like 'if we have to set our own clock; set clock'
<oliv3r> i meant, 'if we need to read our clocks ourselves, read them here'
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<oliv3r> maybe it's only used for debug, e.g. print clocks on serial port
<arokux2> oliv3r: could be
<oliv3r> but that u-boot driver looks MUCH easier to integrate then the sun7i linux one we have
<oliv3r> git grep get_pll1_clk
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<arokux2> while(readl(GDMA_BASE + GDMA_BUS_MODE) & SOFT_RESET);
<arokux2> it loops here, i try to set it manually that bit won't get cleared
<arokux2> oliv3r: maybe I should try if my gmac works at all...?
<oliv3r> lol boot nand flash kernel
<arokux2> Benn sent 16 CTs and nobody cherry picked gmac to sunxi-3.4 :(
<oliv3r> been way to busy :( but yeah
<oliv3r> bummer raelly
<arokux2> oliv3r: booted, what now?
<arokux2> no shell
<arokux2> oh it works
<arokux2> hah the board just goes off!
<arokux2> oliv3r: or maybe leds go off, but nothing is output to UART
<arokux2> and nothing can be input
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<ccube> which part in fex is responsible for the eeprom on a10s board?
<arokux2> FexGuide -- maybe helps
<ccube> not rly
<ccube> Error: Could not open file `/dev/i2c-1' or `/dev/i2c/1': No such file or directory
<ccube> ah^^
<ccube> got it...
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<arokux2> hramrach: there?
<hno> oliv3r, arokux I am still lurking...
<oliv3r> hno: yay :)
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<oliv3r> arokux2: if it goes off, you have Power problem, mine 'works'
<arokux2> hno: why? :(
<arokux2> hno: there is real stuff to do... :p
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<arokux2> sun7i_defconfig is HUGE
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<hno> arokux2, I know. Need some magic wand to extend days to 36 hours. Would suit me better I think.
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<arokux2> hno: maybe you at least can help oliv3r to push his 2GiB to upstream u-boot?
<oliv3r> why not 48!
<arokux2> hno: 2GiB-patch
<oliv3r> i would love 48 hours in a day
<arokux2> oliv3r: you'd need to wait till the earth slows down that much
<oliv3r> :)
<oliv3r> nn all
<arokux2> bye oliv3r
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<hno> oliv3r, I am not a robot. Do need some sleep.
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<arokux2> hno: will you ever return to sunxi?
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<hno> arokux2, yes, as soon as I get a life again.
<arokux2> hno: do you know when that will happen? :)
<arokux2> mnemoc: ping
<hno> arokux2, i thought now, but it's delayed a bit..
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<arokux2> last update on cubietruck: http://linux-sunxi.org/A20-Cubietruck#Status_of_the_community_kernel_.28sunxi-3.4.29_.2F_U-Boot
<arokux2> hramrach: ^^^^^
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