Turl changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi
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<MoeIcenowy> libv: http://linux-sunxi.org/Working_around_missing_SD is with linux-sunxi and u-boot-sunxi, not mainline?
<MoeIcenowy> and can I now use a gadget-only mode of MUSB to perform gadgets and transfer data with gadgets?
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<MoeIcenowy> in addition, how to use g_multi?
<MoeIcenowy> just select it, and it can be used?
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<wens> just fyi, i will be away from most of my boards for a month or so, so less testing on my end
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<JohnDoe_71Rus> Has anyone tried to connect the screen of iPhones? interested protocol, pinout, driver
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<KotCzarny> did i mention that battery controller in 3.4 is brain dead? right now battery is constantly topped-off (ie. constantly charging with ~9mA)
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<KotCzarny> otoh it appears that battery is almost always ~4.1V
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<libv> MoeIcenowy: probably
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<libv> Turl, plaes: thanks :)
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<bdthebc> Hi all. I have a potentially kind of silly question. I've got this tablet that is nearly identical to the one listed as the A-Star KV49L on the wiki. But they are in fact, subtly different pieces of hardware. I discovered this by mocking-up a wiki page for the tablet according to the new device page howto(here's my mock-up https://github.com/cmotc/android_product_antm_revo/blob/master/device_page.wiki
<bdthebc> ). So my question is what would make a variant of a device significant enough(besides someone hacking on it, I'm at least going to keep trying until I break it) to merit it's own wiki page?
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<buZz> 10:35:55 -!- bdthebc [~bdthebc@50.25.13.207] has quit [Quit: leaving]
<buZz> kak
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<hp197> Hello :)
<hp197> Question, because im bad at using Google
<hp197> How is the support of A80 nowadays in sunxi?
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<KotCzarny> mostly WIP
<hp197> thnkx
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<Tartarus> OK, stupid CHIP question, I need to use the actual UART for U-Boot, it's not using usb gadget uart, right?
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<plaes> Tartarus: please start here: http://linux-sunxi.org/New_Device_howto
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<libv> plaes: quite amazing how we still have no chip page.
<KotCzarny> maybe no one is using it
<ssvb> KotCzarny: CHIP is expected to become available in June 2016, I guess only early engineering samples exist today and the hardware is not yet finalized
<KotCzarny> so i was right?
<libv> but quite a few engineering samples are out there already
<libv> and there still is no page
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<vagrantc> CHIP has some mainline linux and mainline u-boot support... although neither can read the NAND, obviously... which kind of limits the usefulness, given there's no microSD or any other place for an OS other than USB
<ssvb> vagrantc: mripard and bbrezill1 are working on NAND support, it is not ready for general use yet
<ssvb> see http://linux-sunxi.org/MTD_Driver for more details
<vagrantc> ssvb: glad to hear it!
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<ssvb> I guess, NAND is the primary reason why CHIP is going to be available so late
<vagrantc> ssvb: still running orange pi plus2 based on a 4.3 kernel with some of your patches ... does mainline 4.5.x likely include all those patches?
<ssvb> vagrantc: these are not my patches :-)
<vagrantc> speaking from limited understanding, why do people still use nand?
<vagrantc> ssvb: the patches in the branch you posted?
<vagrantc> ssvb: your curated collection of patches...
<ssvb> mainline linux 4.6 is going to be more feature complete for h3
<ssvb> afaik 4.5 only includes some very basic h3 support
<ssvb> as for NAND, it is just supposed to be cheaper than eMMC
<vagrantc> don't need all the features, just mmc, usb, CPU and ram... :)
<vagrantc> though that may still be asking a bit much
<ssvb> you can check the 4.5-rcX releases at https://www.kernel.org/
<vagrantc> sure, it's got a bunch of relevent changes, may as well just try it at some point and find out
<vagrantc> biggest problem i had was that it require some things as built-ins, rather than working as modules, which makes it hard for a multiplatform kernel
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<ssvb> libv: the missing wiki page for CHIP is probably to some extent a marketing issue, they might try to advertise their hardware as something 'unique' and provide their own documentation/collaboration infrastructure to the users
<ssvb> libv: with the linux-sunxi wiki, CHIP is just one of the tens or hundreds of similar devices :-)
<ssvb> but of course, anyone who has already got his early board, can create a CHIP page in the linux-sunxi wiki
<ssvb> this is going to happen sooner or later
<KotCzarny> unique in a way it has no support?
<ssvb> no support?
<KotCzarny> did they provide own sources?
<vagrantc> it actually had mainline linux/u-boot support long before the early ship dates...
<KotCzarny> oh, nice at that
<vagrantc> not that it supported much, but that's more than many boards have that have been out for years
<ssvb> KotCzarny: you can check http://getchip.com/ and find their blog, forum, documentation webpage, etc.
<ssvb> vagrantc: it's not too difficult to have the mainline u-boot/kernel support with the old A13 SoC
<KotCzarny> well, they do have 4.x with nand
<ssvb> yes, they are just hostages of their choice to rely on NAND too much
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<ssvb> and that's why ~10$ Orange Pi variants and Pine64 are probably going to eat their lunch
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<KotCzarny> they hotlink to linux-sunxi.org in faq
<KotCzarny> at least for a13 specs
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<ssvb> vagrantc: there is also h3 display driver in development (though there is some controversy about hdmi code), but I have not tried these patches yet
* vagrantc doesn't need hdmi on a build farm
<KotCzarny> Like most tiny computers, the USB port on CHIP provides a limited amount of power. When you plug in a keyboard and an optical mouse, for example, they will draw too much current from CHIP, not leaving enough for the processor
<KotCzarny> o.O
<KotCzarny> seriously? kb+mouse too much?
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<ssvb> KotCzarny: the Cortex-A8 CPU clocked at 1GHz alone can draw almost 1A from a 5V PSU if stressed by cpuburn-a8
<KotCzarny> o.o
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<ssvb> well, this just means that you need to be very careful when powering it via USB cable
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<ssvb> the official 500mA limit is a joke, fortunately many USB ports can unofficially supply a lot more
<ssvb> but this is of course not guaranteed
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<Tartarus> ssvd, vagrantc, ah yes, re CHIP NAND, that's right :(
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<Galeots> help enable sata h3 orange pi plus 2
<KotCzarny> sata on h3 is just usb adapter
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<Galeots> how do I enable it by kernel?
<Galeots> I'm compiling not work OpenELEC with sata
<Galeots> òI'm compiling not work OpenELEC with sata
<KotCzarny> i dont have anything with gl830 adapter, so you will have to wait for someone more knowledgeable
<Galeots> I do not know how to enable the pin that makes me see gl830
<KotCzarny> it might be driven by generic usb-mass-storage
<KotCzarny> (just a guess)
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<Galeots> help enable sata h3 orange pi plus 2
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<longsleep> apritzel: hey, just compiled your a64-v2 tree - what is the state of it? Do you want to get crash reports? Sorry :)
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<longsleep> apritzel: if you want to see it: http://paste.ubuntu.com/15096077/
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<Galeots> help enable sata h3 orange pi plus 2
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<apritzel> longsleep: saw that yesterday too
<apritzel> which compiler do you have?
<longsleep> apritzel: the one as usual gcc version 5.2.1 20151010 (Ubuntu 5.2.1-22ubuntu1)
<apritzel> so with my setup (my ATF branch, upstream U-Boot, compiled with gcc 5.1.0) it ran happily this afternoon
<apritzel> reading dozens of Gigabytes from the SD card, for more than 3 hours
<longsleep> ok cool, i can try with upstream u-boot then
<longsleep> or its the ATF
<apritzel> maybe this
<apritzel> I pushed the necessary patches yesterday
<apritzel> it maybe this stupid A57 and Juno fix Allwinner left in
<longsleep> right - what i do not get is why the BSP kernel works fine
<apritzel> and also I got I2C working
<longsleep> oh great
<apritzel> was just a matter of the right DT nodes
<longsleep> so from your point of view only other important things missing would be ethernet and usb?
<apritzel> yes
<apritzel> I will rebase this branch and make the final adjustments and it will go out still today
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<apritzel> MMC needs to be fixed properly, but for a starter it seems to work for me
<longsleep> ok yes - i probably have some time to try your ATF and U-Boot on Thursday
<longsleep> and see which one fixes my crashes
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<apritzel> I saw the very same KASAN reports yesterday about the loop module
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<apritzel> but when I compile the kernel with my toolchain at work, it was all fine
<longsleep> mhm strange
<apritzel> it have the 512MB version at work, though
<apritzel> I will just put in that very same SD card in the 1G version here
<longsleep> ok lets hope it will just work as well :)
<apritzel> at work I upgraded to 2.26 binutils and GCC 5.3.0 today
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<apritzel> booted without any warnings, just running the findloop now
<apritzel> one iteration reads about 700 MB from the SD, takes 4 minutes ;-)
<apritzel> longsleep: did you take my DT as well?
<apritzel> some fixes are actually in there
<longsleep> apritzel: yes
<longsleep> apritzel: unmodfied everything from your tree
<apritzel> ah, there is one thing I always do:
<apritzel> fdt rsvmem add 40000000 01000000
<apritzel> in U-boot
<longsleep> ok let me try that
<apritzel> is probably superstition, but ATF sits in the first few KB at beginning of DRAM
<longsleep> i was looking into hdmi with the android kernel without any success
<apritzel> the original U-Boot protects some more ranges, but this should cover everything
<apritzel> eventually ATF should move into (secure) SRAM
<apritzel> it doesn't need DRAM, and SRAM can be properly configured to be secure
<apritzel> HDMI needs some U-Boot work, AFAIK
<apritzel> but in general it's not that far off
<apritzel> we have some beta Display Engine driver already
<longsleep> ok - i keep that in mind for later - who needs display when there is a serial console :)
<longsleep> trying out the mem reserve now
<apritzel> just finished the 5th iteration, interestingly twice as fast as on the other board at work
<longsleep> same sdcard?
<apritzel> yes
<apritzel> so also the same firmware
<longsleep> mhm strange
<longsleep> so - it still crashed with the rsvmem
<apritzel> let me send you my exact kernel build, just to make sure ...
<longsleep> ok
<apritzel> just started a dd of 1GB to get some performance data from linear reads
<Galeots> help enable sata h3 orange pi plus 2
<longsleep> maybe i overwrite something in memory from u-boot
<apritzel> where do you load the kernel to? 41080000?
<longsleep> i load to 41000000, 4107f800 and 45000000
<longsleep> first is uEnv.txt, second kernel, third fdt
<apritzel> you load that Android image still, right
<apritzel> ?
<longsleep> yes
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<apritzel> I am in wonderland already: booti 41080000 - 42000000 :-P
<longsleep> so when i say kernel, this is the address of the android image containing header kernel and initrd
<longsleep> yeah :D
<apritzel> wow, this SD interface is really slow, still chewing on the 1 GB read ...
<longsleep> ok, so can you send me your kernel Image file somehow?
<apritzel> looks like there is quite some optimisation potential
<apritzel> yo, just need to wait for that read to fetch the file ...
<apritzel> yeah, 3.2 MB/s
<apritzel> but also a: [ 1083.333534] INFO: task kworker/0:1:419 blocked for more than 120 seconds.
<longsleep> that is bad
<longsleep> but at least it did not crash :)
<apritzel> mmh, interesting stack trace afterwards ...
<apritzel> [ 1083.390130] [<ffffff80045711a8>] mmc_get_card+0x28/0x38
<apritzel> [ 1083.395368] [<ffffff8004578f28>] mmc_sd_detect+0x20/0x90
<apritzel> [ 1083.400684] [<ffffff8004573c0c>] mmc_rescan+0x1d4/0x350
<apritzel> [ 1083.405923] [<ffffff80040ccabc>] process_one_work+0x134/0x378
<apritzel> [ 1083.412218] [<ffffff80040ccd50>] worker_thread+0x50/0x4a0
<apritzel> so it apparently loses the connection to the card and restarts
<apritzel> which would explain the speed
<longsleep> hum yeah
<apritzel> also I quickly booted a KVM guest today ...
<longsleep> oh nice - so VM works too
<longsleep> thats certainly something
<longsleep> if that SOC had more ram it would be awesome
<apritzel> which reminds me of testing the 2GB version I got last week ;-)
<apritzel> your kernel is uploading ...
<longsleep> btw, does your Kernel reboot fine?
<longsleep> bsp Kernel does not :)
<apritzel> no, but PSCI is broken with upstream U-Boot anyway
<apritzel> I get only UP so far
<longsleep> fair enough
<apritzel> I guess because the BSP U-Boot triggers the arisc, which the upstream does not
<apritzel> I am tempted to kill the arisc and do everything via RSB, both in U-Boot and the kernel
<longsleep> well, that would help getting rid of the firmware without source
<apritzel> their implementation is pretty pointless anyway
<longsleep> ok cross your fingers
<longsleep> that looks much better
<longsleep> booted just fine
<longsleep> so its either gcc or binutils
<apritzel> interesting, this is with 5.3.0, but I had a version compiled with 5.1.0 this morning, which worked equally well
<apritzel> and you were at 5.2.1, right?
<longsleep> yes
<longsleep> Ubuntu repository version
<longsleep> ah now something crashed
<longsleep> single stack trace
<longsleep> INFO: rcu_preempt detected stalls on CPUs/tasks:
<longsleep> [ 91.754739] INFO: rcu_sched detected stalls on CPUs/tasks:
<longsleep> [ 91.754748] 2-...: (1 GPs behind) idle=7a9/1/0 softirq=1416/1418 fqs=5250
<longsleep> NMI watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [systemd:1]
<longsleep> there seems to be some other problem
<longsleep> happens every couple of seconds
<longsleep> apritzel: what is your Kernel configuration? Maybe its due to some stuff i have set or not set
<apritzel> but yours is SMP right?
<longsleep> apritzel: http://paste.ubuntu.com/15096752/ link to the soft lockup dump
<longsleep> yes
<longsleep> [ 0.116890] Brought up 4 CPUs
<longsleep> [ 0.147497] SMP: Total of 4 processors activated.
<longsleep> [ 0.152198] CPU: All CPU(s) started at EL1
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<apritzel> did you actually receive the survey from pine64.com already?
* apritzel is curious about that shop ...
<longsleep> uhm no
<longsleep> i do not think so
<longsleep> apritzel: nope did not receive anything
<apritzel> the 2GB board works fine as well, with the same speed as the 1GB version
<longsleep> ok cool
* apritzel just wonders if the BT module would just work, because it uses the UART
<longsleep> did they send you one?
<apritzel> yeah, I asked for it, for enablement
<longsleep> cool
<longsleep> i hope it does not need firmware
<apritzel> the WiFi uses SDIO, I guess this is where our MMC driver hack stops working
<apritzel> but there is a chance that it's just a matter of a proper .config and a DT
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<longsleep> and if not, then USB for the rescue
<apritzel> which again may be just DT stuff
<apritzel> anyway, let me prepare that patch series
<longsleep> sure, i upload a ready to use Arch Linux + BSP Kernel image for testing in a moment then you could easily compare if required
<longsleep> but i decided to not announce this anywhere as anyone who wants can build it themselves following my scripts and docs
<apritzel> have you seen the "official Linux" image from pine64.com?
<longsleep> no
<longsleep> have they released one?
<longsleep> ah cool
<apritzel> it's an Android image file, with an 3.10.65 BSP kernel compiled yesterday
<apritzel> plus an Android based initrd
<apritzel> :-(
<longsleep> well - no Linux then
<longsleep> just initrd
<apritzel> haven't tried yet, just unpacked it
<apritzel> yeah
<longsleep> and they claim to support gigabit - ok would be interesting to know what they changed
<apritzel> it looked all Android to me, I guess they just drop to some busybox shell or the like
<apritzel> I got an updated driver source from TLLim yesterday
<apritzel> but for the BSP kernel
<longsleep> ah cool
<longsleep> he should send a merge request to my BSP kernel tree :D
<apritzel> and it's a dump of the directory, so one would have to diff it against whatever they used before
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<longsleep> as always
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<longsleep> apritzel: their boot.img does not work for me
<longsleep> no output on the console at all
<longsleep> i unrared it and fused it on the card, dont see what could go wrong there
<apritzel> maybe they don't have a serial console?
<apritzel> have you tried HDMI?
<longsleep> no, let me check
<longsleep> but the NIC is not coming up as well, so i guess its just dead
<longsleep> apritzel: nothing on the HDMI either
<longsleep> apritzel: well binwalk shows that there is something in it http://paste.ubuntu.com/15097024/
<longsleep> but does not boot for me - maybe i need to use the Allwinner tool instead of dd?
<apritzel> looked like the normal Android image to me, so loading and then boota
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<longsleep> mhm - you tried it and U-Boot came up?
<longsleep> or is this just the Kernel + Ramdisk?
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<apritzel> the latter
<apritzel> and I haven't tried it
<apritzel> so you should dd it to a partition
<longsleep> apritzel: ah, ok then its clear why it does not boot when i fuse it to the first byte
<longsleep> ah true, i completely ignored all that partition stuff
<longsleep> i leave that for another day then and getting some sleep :)
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<apritzel> good plan ;-)
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