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
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<Seppoz> can one see in schematics the correct settings for ram?
<Seppoz> is it possible that bus size is only 15 on ram?
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<Seppoz> can someone extract the ram information ftom this schematic please
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<Seppoz> is sit importaint to have correct ram settings in script.bin?
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<ccaione> Turl: :P
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<bonbons> On Cubietruck, with 3.4.79 kernel (as with 3.4.61) shutdown does not happen properly. The red power-led seems to remain powered by the rtc battery and pushing power button causes board to boot from nand instead of mmc
<hramrach> bonbons: disconnect the UART cable
<bonbons> the uart cable has only rx/tx and gnd connected
<bonbons> and shutdown from android that's present on nand works fine
<hramrach> as in if you boot android and shut it down the board powers down completely?
<bonbons> hramrach: exactly (and even trying with disconnected uart I get same results)
<bonbons> sometimes system even reboots instead of halting
<hramrach> I wonder if changing pullup/pulldown options on the UART pins or shutting down the mmc controller or the UART would fix the problem
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<hramrach> but shutting down the uart will also prevent you from reading last kernel messages
<hramrach> but nobody has fixed this so far
<hramrach> and it can be fixed in hardware, too
<hramrach> anybody around who understands the pin options?
<hramrach> the thing that bugs me is that TX is output pin and RX is input pin but they have same pullup/pulldown settings - or do they have defaults and they change by pin type? And are they set correctly for UARTs?
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<Seppoz> is there a way to pass memory size with kernel argument?
<hramrach> yes, there is
<hramrach> but it should be detected by u-boot
<hramrach> if it is not you are doomed, probably
<hramrach> because for it not to get detected you would need memory holes or something else totally wicked
<hramrach> and it's not possible to read ram parameters from a schematic
<hramrach> because alwinner did not release any document that would relate memory controller parameters to physical memory layout in any way
<hramrach> there are things like bus width that hopefully mean what they say but rest is magic sauce
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<hramrach> bonbons: with disconnected UART the board should power down completely
<Seppoz> hramrach: so who would i ask on that?
<Seppoz> i have 1 uboot that boots the kernel just fine
<hramrach> if not you have some other power source there that does not let it power down
<Seppoz> but with wrong ram size
<Seppoz> all i want to fix is ram size
<Seppoz> the uboot i have that works is binary
<hramrach> read the ram parameters when booted with the binary u-boot
<Seppoz> i did
<hramrach> try booting regular u-boot with same parameters
<Seppoz> wheni put that in most recent uboot
<Seppoz> my booting stucks at starting kernel
<hramrach> so you have some other problem
<hramrach> do you also use recent kernel with the recent u-boot?
<Seppoz> i use 3.4.61
<Seppoz> and i tried with about 50 different uboots now
<Seppoz> and about 100 ram settings
<Seppoz> [20:55:23] Seppoz : http://pastebin.com/hGiYqY4s
<Seppoz> [20:56:40] Seppoz : new http://pastebin.com/XMEhhdgE
<bonbons> hm, the android is not that much better at getting shutdown right, some tries it works, others it just reboots
<Seppoz> first link is the working one
<Seppoz> and new is the one that doesnt work
<Seppoz> what is your best guss what could cause this?
<hramrach> if you cannot get the kernel boot with the original settings there is something wrong
<hramrach> what device?
<Seppoz> a20
<Seppoz> *a10
<Seppoz> its witstech C10B board
<hramrach> a devboard?
<Seppoz> its a coreboard
<hramrach> maybe it's worth contacting their support
<Seppoz> i tried, its china...
<Seppoz> what is your best guess
<hramrach> I can't see the pastebin - it's censored
<Seppoz> what do you mean censored?
<hramrach> it blocks my IP
<Seppoz> lol what past you want me to use? pastebin.org?
<hramrach> dunno
<hramrach> sprunge.us seems to work well
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<Seppoz_nowork> sorry i dcd
<bonbons> hramrach: with connected battery android fails to power-off and reboot, with disconnected battery it shuts down properly
<bonbons> (uart connected in both cases)
<Seppoz_nowork> what is your best guess what could cause this?
<Seppoz_nowork> maybe searching on ram is wrong place?
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<Seppoz_nowork> im wondering if it would be the kernel i would see atleast the eraly boot log isnt it
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<hramrach> bonbons: you are probably one of the two or so people using battery with an a20 devboard. The driver and settings needs more testing
<bonbons> :)
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<hramrach> Seppoz_nowork: is that your kernel or the original kernel?
<oliv3r> ijc: btw, while compiling the kernel; which does a -j4; the core does get to hot to touch; but i can hold my finger on it for 5+ seconds easy, so it's not HOT hot
<Seppoz_nowork> hramrach:its mine
<Seppoz_nowork> but its basically the origial
<Seppoz_nowork> i just compiled
<wingrime2> hramrach: you still have problems with vdpau?
<hramrach> did not try yet
<hramrach> I have problems booting my tablet
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<benn`> who know how to fix "platform reg-20-cs-ldo2: Driver reg-20-cs-ldo2 requests probe deferral" ?
<Seppoz_nowork> hramrach: so i finally managed to get it booting with my own uboot, but only 2012.10 works
<Seppoz_nowork> any idea why?
<Seppoz_nowork> what was changed with later release
<hramrach> if you think you can use the additional testing I can try to build it but seems enough people got it working by now
<hramrach> Seppoz_nowork: bisect is your friend
<hramrach> I have no idea
<hramrach> there were some SMP changes that made it possible to boot only with mainline kernel in the very latest u-boot but it never got into any release branch, hopefully
<hramrach> benn`: is deferral a problem? that should mean that it depends on another hardware that has not been probed yet or something like that
<hramrach> if the driver framework did not manage that automagically ordering the driver probes would be total hell
<bonbons> has anyone played with sunxi_ir (various types of remote control, to capture e.g. sony remotes, jvc remotes, ...)?
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<bonbons> out of the box I only get scancodes for twinhan remote control and a kenwood one, but none for the sony or jvc I have around
<Seppoz_nowork> ok lets leave uboot for a while and go back to the actual problem
<Seppoz_nowork> my system crashes with alot of messages like
<Seppoz_nowork> and i cnat figure out why
<Seppoz_nowork> i mean i know why but not why it crashes
<benn`> hramrach: I traced this problem for few hous without success. It seem the axp20 driver probe failed
<hramrach> Seppoz_nowork: there is no crash in the messages?
<Seppoz_nowork> no, what i just pasted you is the output i get before the system is stuck
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<hramrach> benn`: deferral should in itself not prevent probing the driver but if it defers probe until something that never happens it may never probe. Maybe post link to the branch you are using? I don't have much idea about DT but when somebody who works on mainline comes around having the code at hand will help
<hramrach> Seppoz_nowork: yes, it's stuck for no obvious reason. maybe try the latest kernel. it's 3.4.75 or what?
<hramrach> also try disabling cpufreq, JUMP_LABEL and sleep if you have them
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<hramrach> also how is the board powered? Sometimes replacing the power supply does wonders
<hramrach> benn`: or is that not on mainline?
<benn`> hramrach: I am using sunxi-3.4 kernel. I am quite sure it's a bug of the axp20 driver
<benn`> hramrach: but I don't know how to fix it now :(
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<benn`> deferral is caused by func really_probe(..) at drivers/base/dd.c
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<Seppoz_nowork> hramrach: it seems more likely that im doing something wrong, i just try to find out what is is
<Seppoz_nowork> maybe i use the serialport wrong
<Seppoz_nowork> this cpu is so killing me
<montjoie[home]> could someone confirme that my Security System DT is correct http://pastebin.com/sXnC6Ygd ?
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<NetForHack> hello
<NetForHack> how i can flash mk802+(a10s) ?
<buZz> lift up your shirt
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<ijc> oliv3r: My cubietruck is inside the acrylic "simple case" thing so I can't get my finger to the processor.
<montjoie[home]> could someone confirme that my Security System DT is correct http://pastebin.com/sXnC6Ygd ?
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<Wizzup> Correct me if I am wrong, but the wiki says there is currently no driver for it
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<montjoie[home]> Wizzup I am writing the driver for it:)
<Wizzup> cool :)
* Wizzup will see if he can patch tor to use it then
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<Turl> montjoie[home]: your dt looks sane :)
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<Turl> montjoie[home]: don't forget to write a binding document as well :)
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<montjoie[home]> Turl does I need to modify something for the clocks ?
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<Turl> montjoie[home]: looks good that way
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<Turl> montjoie[home]: you can add clock-names to get clock by devm_clk_get if you want
<montjoie[home]> Turl the name i need to clk_get is ahb right ?
<Turl> montjoie[home]: no, right now with that dt you need to use of_clk_get
<montjoie[home]> thanks I will try
<Turl> if you add clock-names = "ahb", "mod" you can also use devm_clk_get(..., "ahb") and devm_clk_get(..., "mod")
<montjoie[home]> It works for the first clock, but for the ss clock if fail
<montjoie[home]> so something is wrong with the ss clock
<Turl> montjoie[home]: what fails?
<montjoie[home]> devm_clk_get(..., "mod")
<montjoie[home]> ss_ctx->ssclk = devm_clk_get(&pdev->dev, "mod");
<montjoie[home]> for be precise
<Turl> montjoie[home]: and what does your dt look like?
<Turl> montjoie[home]: what return code do you get from devm_clk_get?
<montjoie[home]> -2
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<Turl> -ENOENT? o.O
<Turl> montjoie[home]: can you check if clock tree looks ok and ss is there? it should be on clk/clk_summary in debugfs
<montjoie[home]> (compiling debugfs...)
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<Turl> see the list :p
<Turl> libv: inet-86DZ, that's a new one
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<montjoie[home]> Turl http://pastebin.com/utU3LtqG I see the ss clock
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<Turl> montjoie[home]: strange hm
<Turl> montjoie[home]: maybe it's the interrupt specifier breaking things
<Turl> montjoie[home]: on a20 they look like <N N N>, not, <N>
<Turl> montjoie[home]: look at other devices for example
<oliv3r> just an FYI/FYM, is it known that the current kernel built for sun4i fails (using the BSP)?
<oliv3r> it barfs on DRM/Mali stuff
<oliv3r> i haven't looked into it, no time and not important enough for now, busy working on the book, just wanted to drop that one by
<oliv3r> ijc: ah so yours could potentially run hotter :)
<oliv3r> ijc: well i've compiled the kernel without any problem whatsoever
<oliv3r> i'll let unpackking loop a few times tonight
<oliv3r> something like untar, rm -rf, untar, rm -rf; do that 100 times or something
<oliv3r> but this is all with the old-old u-boot
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<jelly-home> hah, amazon.co.uk sells those A23 tablets made by a company naming themselves "Generic". Thus, appropriate title:
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<jelly-home> Generic Allwinner A23 7 Inch Android Tablet PC Q88 Dual Core Android 4.2 WIFI 512MB 4GB Dual Camera (Blue)
<oliv3r> and! i just realized, i might be using a really old git revision; let me check that first :p
<oliv3r> jelly-home: lol
<oliv3r> mnemoc: we have to add u-boot-sunxi-with-spl.bin into the hwpack :)
<oliv3r> ssvb: let me check the last commit in the repo
<oliv3r> commit 4b7b3cb9212327d9308f0d5cdadbaf4d556c58e6
<oliv3r> oh shti
<oliv3r> looks like the BSP still builds a 3.0 kernel
<ssvb> oliv3r: this problem used to also cause build failures on parallel build because of competing gcc/binutils instances tasks overwriting the same object files
<oliv3r> ok that needs to be updated
<oliv3r> yeah i'm pretty sure i do not have those fixes
<oliv3r> the bsp needs to reference the latest 3.4 kernel
<oliv3r> mnemoc: ^^^
<ssvb> but these build failures used to be not very frequently reproducible
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<oliv3r> ssvb: i imagine, well i'd have them in a VM, so i could zip it up and send it your way if I encounter stuff on something a little more up to date then 3.0
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<montjoie[home]> Turl nothing changes with or without interupts
<oliv3r> but i'm not gonna bump sunxi-3.4/HEAD as the main go to place for the BSP
<oliv3r> mnemoc should do that :p
<oliv3r> mnemoc: ^^
<Turl> montjoie[home]: can you paste code and dmesg?
<ssvb> oliv3r: mnemoc is already thinking about promoting stage/sunxi-3.4 to sunxi.3.4 - https://www.mail-archive.com/linux-sunxi%40googlegroups.com/msg03385.html :)
<oliv3r> ssvb: i just replied as I just saw :)
<oliv3r> ssvb: and made him work it too :p
<ssvb> ok
<oliv3r> *high five*
<oliv3r> :p
<ssvb> :)
<Turl> montjoie[home]: looks good, dunno
<Turl> montjoie[home]: it's exactly the same as on spi driver, and it works there :)
<Turl> montjoie[home]: did you fix interrupts = <...>?
<montjoie[home]> yes
<montjoie[home]> and i try without it since it is useless
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<Turl> montjoie[home]: what happens if you put clocks in reverse order?
<montjoie[home]> Turl nothing change:(
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<Turl> mripard: ^ any idea on what might be wrong?
<Turl> montjoie[home]: ahb clock is good and ss one fails?
<montjoie[home]> yes
<mripard> can we have the full DT ?
<mripard> and what kernel do you use?
<mripard> (like, which revision)
<montjoie[home]> latest sunxi-devel
<oliv3r> /silo/build/sunxi-bsp/linux-sunxi/drivers/gsensor/bma250.c:31:25: fatal error: mach/system.h: No such file or directory
<oliv3r> when did that break?
<oliv3r> let me trash all
<montjoie[home]> mripard the dt is modified with http://pastebin.com/swdUjXuB
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<loganaden> hoi
<loganaden> i bought an android tablet
<mripard> montjoie[home]: are you sure you're booting that kernel?
<oliv3r> loganaden: me too!
<Turl> loganaden: congratulations on your purchase
<loganaden> thx
<mripard> if so, you'll need to add some tracing to the clk_get function.
<loganaden> the build is A20_K70_K701c
<mripard> but it should work fine
<oliv3r> http://linux-sunxi.org/images/b/be/A727_back.jpg bah; that tablet could have had 1 gb ram!
<loganaden> kernel version is
<loganaden> 3.4.39+ inet_paco
<oliv3r> loganaden: yeah, INET makes a lot of OEM tablets
<oliv3r> loganaden: did you follow the http://linux-sunxi.org/New_Device_Howto ?
<loganaden> is there a chance of rebuilding the firmware from source code ?
<montjoie[home]> mripard I am sure
<montjoie[home]> I will try sunxi-next also in cas of...
<oliv3r> loganaden: well start by following the new device howto; the rest should follow from that quite easily
<Turl> oliv3r: it's cheaper if you only put one chip :p
<oliv3r> Turl: of course :)
<oliv3r> it even has a socet for the A6100 or whatever the bluetooth/wifi is called on ct
<Turl> oliv3r: if the SoC had 64M of RAM PoP style I'm sure they'd find a way to make android boot on that without external ram
<oliv3r> lol
<oliv3r> yeah :(
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<mru> pop is still an external chip
<loganaden> oliv3r: is it possible to boot the latest android on that box ?
<oliv3r> loganaden: if you put some effort into it; ab solutly
<oliv3r> loganaden: but there is no 'standard' image you can flash and be done with it, well not that i know of, probably someone has done a generic a20 android iamge
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<Turl> mru: so they're two things you buy and solder one over the other?
<Turl> I thought they came as one unit already
<Turl> must be because I'm not an EE but a software guy :p
<mru> yeah, the usual ram vendors like micron sell pop packages suitable for various socs
<oliv3r> i think they are solderd in the factory
<oliv3r> but look at the rpi; that's poped mem
<mru> pop has two main advantages over a traditional chip
<mru> it saves pcb space
<mru> and it simplifies pcb layout
<mru> routing all those traces between the soc and the ram can get tricky
<oliv3r> double stacked ram!
<oliv3r> does that exist at all?
<mru> and you free up pins for other uses
<oliv3r> or reduce the pincount on the bottom :p
<mru> you can get pop chips with ram + nand flash
<oliv3r> e.g. reduce the chipsize usually
<mru> but those are a single package
<mru> I haven't ever seen a stack of 3 or more packages
<Turl> heat may be an issue if you stack all the things
<oliv3r> soc + ram + nand :)
<oliv3r> or soc + ram + ram + nand
<oliv3r> gotta have dual channel ram :)
<loganaden> oliv3r: a20 all winner tech when it boots
<mru> you can get dual channel ram + nand in a single pop package
<oliv3r> mru: problem solved! see, that's what AW needs :)
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<mru> so far they've mainly been targeting the tablet market
<mru> tablets have enough space that pop isn't needed
<ssvb> I guess that's also not a cheap solution because somebody must be doing money extortion - http://en.wikipedia.org/wiki/Package_on_package#Patents
<loganaden> oliv3r: is it possible to rebuild the whole android image ?
<loganaden> oliv3r: or should i request inet-tek.com for the whole android build tools ?
<oliv3r> loganaden: the SDK has been released by allwinner ages ago, you can hunt that one down and use it :)
<libv> Turl: oliv3r apparently beat me to it :p
<oliv3r> libv: huh?
<libv> NDHing someone :)
<oliv3r> oh! :)
<oliv3r> twice today
<libv> oh?
<oliv3r> in here and on ML
<libv> ah
<libv> loganaden just now :)
<libv> no ndh needed there
<oliv3r> ah :(
<oliv3r> :p
<libv> the string is right there under the identification section
<loganaden> libv: ?
<libv> loganaden: look at that page.
<libv> that's your tablet
<loganaden> libv: yep, it is :-)
<loganaden> libv: i'm looking for the SDK, to rebuild the android image from scratch
<libv> loganaden: i just do device enabling and graphics drivers.
<loganaden> libv: all i see are announcements and no links :-D
<oliv3r> loganaden: dl.linux-sunxi.org maybe has a copy :)
<libv> so i am 0 help with getting android running
<loganaden> oliv3r: awesome !
<libv> heh, googling for a20_k70_k701hc returns us as 4th
<libv> k701hc has us third
<libv> these android identification strings really are quite significant
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<loganaden> libv: to be precise, mine is the A20_k70_701cxxxx
<oliv3r> very much yeah!
<loganaden> there's no H before C
<oliv3r> typo :p
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<libv> loganaden: really?
* libv fires up his tablet
<loganaden> libv: yep :-D
<loganaden> libv: btw, any do you have a ready-to-use img ?
<libv> loganaden: again, no
<loganaden> libv: sorry, wasn't paying attention :-)
<libv> loganaden: we are mostly about setting this hardware free and providing proper support for it
<libv> we are not an android forum where people "develop" images
<loganaden> libv: understood
<oliv3r> xda is a better source
<libv> loganaden: it reads model-number reads k701hc, build number reads A20_K70_k701HC_136108.20130813
<libv> err, A20_K70_k701HC_1306108.20130813
<libv> loganaden: which brand tablet is this?
<libv> what brand name did you buy it under?
<loganaden> libv: welltech
<libv> loganaden: what welltech device is this supposed to be?
<libv> loganaden: can we get a picture of the backside of the device to help with identification?
<loganaden> BW-0708 <- Model Number
<loganaden> firmware version: 2.1_20140107
<libv> the android model number?
<libv> ok
<loganaden> nuild number
<loganaden> A20_K70_K701C.20140107
<loganaden> W-Tech
<loganaden> S/N 70820140258
<libv> please verify
<loganaden> libv: yep !
<loganaden> libv: correct
<libv> loganaden: does this look familiar: http://linux-sunxi.org/File:Inet_k70hc_back.jpg
<loganaden> yeah !!!
<loganaden> that's it
<loganaden> libv: have you used the SDK before ?
<libv> loganaden: again, never
<libv> loganaden: i am, once again, simply about graphics and device enablement
<loganaden> libv: ok, so no kernel recompile either ?
<loganaden> libv: kernel recompile to get graphics and device enablement to work
<libv> loganaden: you can find that under "sunxi support" on that page
<libv> loganaden: do you have any idea how this welltech device is marketed?
<libv> i am having a bastard of a time finding anything.
<libv> loganaden: is there welltech written on the back of the device?
<loganaden> on the backside
<loganaden> it's written as
<loganaden> W-TECH
<libv> where did you get it?
<loganaden> libv: in Mauritius
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<loganaden> libv: there's a shop known as Cash & Carry
<libv> loganaden: in the madrid area?
<libv> this so i can try to search their website
<loganaden> libv: C&C is found in Mauritius
<loganaden> libv: an island east of madagascar
<libv> loganaden: it's a pretty global chain apparently
<libv> known also as metro in germany and macro in belgium
<libv> perhaps it's not the same chain :)
<libv> loganaden: can you upload a picture of the back of your device to help future identification?
<loganaden> libv: give me a sec
<libv> well, for lack of further info, i am going to call it W-Tech <android model number>
<libv> w-tech is another one of those brilliant chinese names
<libv> "w/ tech support" is what i see alot
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<libv> aliexpress has w(holesale)-tech
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<loganaden> lol
<loganaden> what's the difference between a20 sdk and a23 sdk ?
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<Turl> loganaden: what's the difference between an ATI driver and an NVIDIA driver? :p
<jelly-home> Turl: one of those works
<Turl> lol
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<physis> hi guys
<Seppoz> hi
<Seppoz> i will open a channel now #linux -suckaxi
<Seppoz> #linux-suckxi
<Seppoz> one day i will jump from the roof with this cpus
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<physis> guys is rellla XBMC repositories listed on Wiki the best choice for A20 device? Seems a bit outdated for now...
<specing> Seppoz: Don't worry, be happy^W^Wbuy Intel
<Seppoz> xD
<Seppoz> its the first device i had so much issues with, and without you guys here id be lost :(
<Seppoz> any other cpu has a more open documentation than this
<Seppoz> ok maybe railink is more close
<Seppoz> xD
<Seppoz> speaking of intel, you seen that nee chip?
<Seppoz> cant find the link now
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<labrador> hello guys
<physis> hi
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<labrador> my olinuxino looses time all the time
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<Seppoz> maybe you have built jernel without rtc?
<Seppoz> or mabye battery is damaged?
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<Seppoz> try to sync your hwclock and see what you get as reply
<labrador> i have build the kernel with rtc support.
<labrador> the hwclock returns
<labrador> hwclock: select() to /dev/rtc0 to wait for clock tick timed out: No such file or directory
<labrador> pcf8563 1-0051: retrieved date/time is not valid.
<Seppoz> sounds like there is no rtc
<Seppoz> dmegs | grep rtc
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