mnemoc 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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<chrs_> nice url
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<wens> looks okay, if not slightly expensive
<wens> chinese sales site says emmc, not nand
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<Kevin125> How can the a10 device which is running ubuntu linux plays 2160p videos? 1080p is still not work
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<wens> mripard_: heh, i think the new sdk has boot0
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<mripard_> wens: for a a23?
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<wens> mripard_: a31
<wens> but i think they aren't so different
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<Black_Horseman> kalimera
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<wens> mripard_: i can't seem to find code that controls/enables losc for sun4/5/7i
<wens> funny, i remember looking at it a few months ago :(
<mripard_> I don't know if there was any code
<mripard_> at least in linux
<wens> even with uboot sunxi and mainline, on A20 the registers are properly set (which is not the default value)
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<mripard_> wens: we don't have anything in mainline to deal with this
<mripard_> so it must be somewhere in u-boot
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<oliv3r> does the A10 really have a CSI interface? or is it really a CPI interface and AW doesn't know the diff
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<jemk> ssvb: do I have to run all those hardening tests? they will last days.
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<ssvb> jemk: they are optional, and exist just for convenience
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<ssvb> jemk: you can let it run hardening tests just for one or two tpr3 values
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<ssvb> jemk: btw, I have noticed that I got some regression in the newest lima-memtester and in some rare cases there is no rotating cube
<jemk> ssvb: it runs for 0x031111 at the moment
<jemk> ssvb: oh, i have no screen connected...
<ssvb> jemk: I'll try to run some more tests and will probably revert it
<ssvb> jemk: right now I'm about 90% sure that it is the root cause
<ssvb> jemk: I have also tried some experiments with SDR_ZQCR1
<ssvb> jemk: it is indeed responsible for the periodic re-calibration at runtime, because I see that the value in SDR_ZQSR keeps changing
<ssvb> jemk: however the reliability gets much worse
<ssvb> jemk: now I can only suspect that it is doing some "short" periodic calibration, which has poor accuracy compared to the proper "long" calibration at the initialization time
<ssvb> jemk: maybe enabling burst refresh can improve something (give the zq calibration a bit more time to do its job?)
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<jemk> ssvb: I have 0x10d1800 after coldstart and still have it now after hours of lima-memtester with reboots
<ssvb> jemk: you can try to set zq to 0x10d3900 and check if something changes
<ssvb> jemk: this will bypass the calibration and just use this value directly
<jemk> ssvb: and then scan tpr3 again?
<ssvb> jemk: yes, if you have time for this experiment
<jemk> ssvb: should be possible, will need less time than hardening tests ;)
<ssvb> jemk: one more interesting thing in your html report is that the read errors seem to be concentrated in one lane, and write errors are concentrated in another one
<jemk> ssvb: yep, i noticed that too, and read errs are top right, write bottom left
<ssvb> trying per-lane delay adjustments may probably provide a good improvement now
<ssvb> earlier I was testing per-lane delay adjustments, but that was before I realized that the impedance mismatch is much more important
<ssvb> this can be revisited again
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<ssvb> jemk: hopefully it should work better for you, me and the other people
<ssvb> jemk: and oliv3r definitely has the most interesting Cubietruck board (which even has troubles with u-boot-sunxi)
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<Digitlman> got my banana pi....lovin it so far...more powerful than the raspberry pi for sure! Thanks Allwinner!
<Digitlman> I look forward to an updated XBMC port
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<WarheadsSE> I am not sure that Allwinner is the one to be thanking.
<Digitlman> probably not
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<CaptHindsight> Digitlman: how well is it made? I was wondering when someone would get one
<Digitlman> so far about as well as the raspberry pi
<Digitlman> in fact, maybe a little better
<Digitlman> when I plug things into the usb on my rasp, it tends to reset the power....I don't see that on the banana
<CaptHindsight> Digitlman: where did you get yours from and how long did it take?
<Digitlman> I cannot find any US retailers that don't want outrageous prices, so I bought off alibaba
<Digitlman> took about 2 weeks to get here
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<Digitlman> it was $52 shipped
<Digitlman> the US resellers I found wanted $75-100
<CaptHindsight> thats the same link I found
<Digitlman> yep
<Digitlman> Alibaba is the way to go
<CaptHindsight> Banana Pi - A Highend Single-Board Computer only for Target US$29.99 if you mean $52 or $75-100 :)
<Digitlman> yeah
<Digitlman> to be fair, it was $30
<Digitlman> plus another $20 for shipping
<Digitlman> damn you China!
<CaptHindsight> the banana pi with the A20 might be a good option for the next few years
<Digitlman> yep
<Digitlman> good power/weight ratio (perf/price)
<CaptHindsight> I'm not holding mt breath on the A80 docs
<Digitlman> paper launch only so far?
<CaptHindsight> devs boards are floating around
<Digitlman> ahh
<CaptHindsight> somebody posted PCB files for one board a few days ago
<Digitlman> does it have a release date yet?
<CaptHindsight> the SOC is shipping
<Digitlman> whats the msrp?
<CaptHindsight> the SOC's end up ~$6, but they get >$20 early on
<Digitlman> but that has powervr gpu?
<Digitlman> not mali?
<CaptHindsight> looks like this board ended up without any SATA
<Digitlman> boo
<CaptHindsight> yes, they switched GPUs for the A80
<Digitlman> that'll trash linux support I bet
<Digitlman> and no sata = no sale
<CaptHindsight> they main goal is profit, not open
<Digitlman> lol yeah
<CaptHindsight> http://cubieboard.org/2014/05/04/cubietech-will-promote-a80-high-performance-mini-pc/ I heard this version in the pic was just a photoshop vapor
<Turl> yeah it is
<Digitlman> bah
<Turl> but there's real pics on flickr
<Digitlman> engineering samples cool
<Digitlman> hey a cmos battery!
<wens> oliv3r: it's CPI (CSI stands for camera sensor interface :p )
<Turl> Digitlman: rtc :p
<Turl> wens: what's cpi?
<libv> so now i am wondering, is this a new era for allwinner and cubietech cooperation, and does this mean that linux-sunxi now gets ignored by both?
<libv> it seems olimex is also going a80
<wens> Turl: P for parallel, as opposed to serial (like in MIPI CSI)
* Turl still confused, but anyway :)
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<dack> how can I tell if the NAND on my device is supported by sunxi-nand? I see that it's looking up id codes, but how can I get that off my device?
<libv> dack: you seem to be asking many questions in one
<libv> dack: so libnand does not want to see your nand?
<libv> dack: what hardware are you using?
<dack> libv: I'm working on the MK808C
<dack> libv: the default kernel config is to have the sunxi-nand as a module.. on my device nothing is detected and its not loaded
<libv> dack: and the nand driver does not initialize properly?
<libv> ok
<libv> first, check the chip itself, find out what device this is
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<dack> libv: if I build it into the kernel then it seems to detect something but I only get a /dev/nand and a nandd process going at 100% CPU
<libv> hrm, weird
<dack> libv: check what exactly? I have the unit opened. I'm not sure which chip is NAND. :)
<libv> the separate pcb is the wifi
<dack> libv: that's it.. the 2 chips to the right of the A20 seems to be memory.. but not sure if its NAND or RAM
<libv> the a20 is clearly visible, and there are 2 ram chips to the right of it
<libv> those are ram
<libv> the small square one is the axp, the power management unit
<libv> which leaves the oblong one
<libv> most flash chips come in that format
<dack> libv: the code on the RAM ones say 512M... which is strange because there are 4 chips in total and the unit has 1G of ram
<libv> read the markings on the flash chip
<libv> that is strange indeed, as that usuall is in megabit
<dack> libv: k.. that chip says "SKhynix" H27UCG8T2BTA
<dack> libv: "BC 413A" then at the bottom "M12KE840AM"
<dack> libv: "M12KE840AH" actually
<dack> libv: Hynix site has a PDF saying "CG" means it has 64gb capacity... I think it's more like 8gb..
<libv> there's a H27UCG8T2B in the table
<libv> dack: yes, but you do not want to know how many hours i burned on that
<dack> libv: ^_^
<dack> libv: okay, but is the only way to figure out why it's not working is with a UART connection?
<libv> i am currently writing a small patch to make the scan fail more gracefully
<dack> libv: gracefully? You mean with logging? Or are you talking about the nandd process going to 100% CPU?
<libv> so that it actually complains about not finding the nand and prints out a chip id
<dack> libv: with the module in-built module I get messages saying "Dev Sunxi softw411 nand magic does not match for MBR 1: <FF><FF><FF><FF><FF><FF><FF><FF>"
<libv> ah, ok
<libv> so that could be another issue altogether
<dack> libv: this is the latest sunxi-3.4, BTW
<libv> and this loops endlessly?
<dack> no.. just those lines
<libv> ah, just burns cpu
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<libv> dack: get the first mb of nand
<dack> would a more complete syslog be helpful?
<dack> libv: then send it to you?
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<libv> hexdump -C it and pastebin that
<dack> libv: k.. give me a few minutes. I switched back to the module to save CPU
<dack> libv: if I "modprobe nand" it seems to load, but nothing happens
<libv> nand needs an endless amount of work
<libv> someone should actually go play with the cubietruck and the new partition scheme of the more recent cubie images
<libv> but the amazing thing is, i either go do that myself, or people will just keep on complaining/crying
<libv> and if i do that, people will complain that i don't work on kms
<libv> dack: perhaps you can solve this for us.
<dack> libv: my skills are limited...
<dack> libv: is the "SUNXI Nandflash Test Driver" useful for this? I'm not sure what it does
<libv> i have no idea what that is
<libv> hdmi on a20 needs a tiny bit more init before hpd works...
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<dack> libv: I'm guessing the 1Mb dd should only take a second, right? It seems to be frozen...
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<ijc> ssvb: I see your DRAM series, good work. I've only glanced through it so far and although I'm not going to pretend I understand it all it looks pretty good.
<ijc> I think a change of that magnitude needs to sit on the list for a bit before being applied so people have a chance to comment etc, so it's not part of the next PR I sent just now.
<dack> libv: sending USR1 to dd won't even give me a status on the copy...
<jemk> ssvb: tpr3-scan is still running, but I already have a much bigger green area with the zq fixed at 0x10d3900 (autodetect was 0x10d1800)
<libv> dack: then it's time to start instrumenting the nand driver
<Turl> dack: dd likes to print them when it finishes a block or so, if you used a big bs= it may wake a while
<libv> Turl: for 1MB?\
<Turl> 1MB should be done in a couple seconds tops
<Turl> with count=1
<libv> dack: drivers/block/sunxi_nand/src/scan/nand_scan.c:223
<libv> that has SCAN_DBG("[SCAN_DBG] Nand flash chip id is:0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
<libv> turn that into a pr_info and recompile, and see the id printed out
<dack> libv: sorry.. I'm not sure how to do that. pr_info?
<libv> well, i am not going to do that for you.
<dack> libv: no, no.. I'm not sure how to get that debug statement to print out or what you mean by "pr_info"
<libv> google it
<Turl> dack: replace SCAN_DBG( with pr_info( and recompile
<Turl> that's all there is to it
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<dack> Turl: k.. then it should come out in syslog?
<Turl> dmesg, yeah
<dack> Turl: thanks..
<libv> *sigh* spoonfeeding.
<Turl> yw
<Turl> libv: there's barely anything to feed
<libv> and still you let him have that
<Turl> it's not like I'm going over the compilation
<dack> libv: I'm not that familiar with kernel coding...
<libv> dack: and?
<dack> libv: I've never heard of pr_info()
<libv> then why didn't you just look it up?
<dack> libv: I did.. but Turl saved me 30 minutes of reading just to figure out it works like printf
<libv> 3 minutes, tops.
<dack> libv: any way.. how would you get SCAN_DBG() printing out?
<libv> by finding the define that turns it into something useful, but that then enables all scan debug printing or even worse
<libv> forest, trees and such
<libv> again, this is very basic stuff
<Turl> libv: talking about kms..
<Turl> libv: do you recall how is hdmi audio handled?
<libv> Turl: sent out in the blanking
<Turl> libv: I mean in sunxi, is it via iis?
<libv> how it gets to the hdmi block?
<libv> no idea, never tried it
<libv> i am also not intending to implement it, there are tons of people peeing their pants to do it
<dack> libv: see that's another thing I'm not familiar with... developing by peeing one's pants
<dack> I'm learning so much. ^_^
<libv> dack: hdmi cec and hdmi audio are things some people seem overly interested in
<libv> dack: people are not so interested in the more boring bits
<libv> peeing in pants is being overexcited, like a puppy
<dack> libv: it was a joke.. I understood what you were saying
<dack> libv: nand flash chip id is: 0xad 0xde 0x94 0xeb 0x74 0x44
<libv> hrm, that should match
<libv> according to nand_id.c
<libv> so that cannot be the issue
<dack> libv: really? the nand_id.c shows 0xff instead of 0x44, no?
<dack> libv: or is that a mask?
<libv> that most likely tells the code to ignore this value in id-ing the chip
<libv> so that's not it, size matches as well
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<dack> libv: I seem to be able to access it with a terminal in Android... but files like script.bin seem to be missing.. maybe some sort of corruption with the data? (though everything seems to run fine in Android)
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<libv> ok, those pastebinned things are just warnings from the partition checking code
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<libv> heh. why?
<libv> why is everything and the kitchen sink included in sun7i_defconfig
<libv> except nand.
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<libv> dack: first off, if built as a module, it seems to be called sunxi_nand
<dack> libv: isn't it included, but as a module?
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<libv> nope, not in defconfig
<libv> CONFIG_SUNXI_NAND
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<Turl> libv: it's =m
<dack> libv: yeah.. I see it as a module after I do "make ARCH=arm sun7i_defconfig"
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<dack> libv: then I switch SUNXI_NAND to built-in
<libv> ah, since march 2nd
<libv> dack: when you modprobe "nand", nothing will happen
<libv> you have to modprobe sunxi_nand
<libv> after which time you should see the exact same happen as with built in, only at a different time
<dack> libv: I think I tried that first... it can't find it. If I do "nand" than it shows something in lsmod as being loaded
<libv> because nand is a completely different thing
<dack> libv: ah.. :) of course.
<libv> pfff
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<dack> libv: which .ko is supposed to be sunxi-nand?
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<libv> -?
<libv> really?
<dack> libv: I'll recompile and see if I can find it... I don't see anything there.
<libv> anyway, my tree is too old for this, i'd have to recompile too much for this, i don't have enough patience for this anyway, i'm out
<libv> oh, and it is seriously in the way of me implementing ddc for hdmi for kms
<dack> there's nothing remotely "sunxi-nand" in kernel/drivers/block/
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<libv> oh, it is called nand, as well
<libv> that means that there are two nand modules?
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<Black_Horseman> Hell -o
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<dack> libv: at the risk of being chastised.. where is the final module name defined?
<libv> Makefile
<dack> libv: which one? :)
<libv> drivers/block/sunxi_nand/nfd/Makefile
<libv> which is spoonfeeding again
<dack> libv: I thought the name you passed to modprobe usually matched the .ko file name... why is there no nand.ko?
<dack> kernel/drivers/mtd/nand/nand.ko
<dack> found it..
<dack> or is that the "other one"
<dack> I have a kernel/drivers/block/nbd.ko ...
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<dack> nope.. that's a network block device..
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<dack> libv: When I do "make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j4 INSTALL_MOD_PATH=output modules_install" I don't think the proper sunxi_nand modules are copied over... there's something wrong in a Makefile somewhere
<oliv3r> wens: mipi alliance says CSI stands for Camera Serial Interface, and CPI for Camera Parallel Interface :)
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<dack> libv: okay, after disabling the "other nand" module then I now have a kernel/drivers/block/sunxi_nand/nfd/nand.ko
<dack> libv: with the current defconf there's no way anyone could be using sunxi_nand
<libv> dack: time to make a patch and send it in to the ml
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<dack> libv: is it just changing "obj-$(CONFIG_SUNXI_NAND) += nand.o" to be something like sunxi_nand.o instead?
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<libv> dack: or fixing defconfig, whichever you wish to do
<dack> libv: hmm.. I have no idea what that other nand.ko even does
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<phase1_> hello, i have a cubietruck a20, and was wondering if it was possible to change the speed of the i2c bus. i want to enable fast mode. if so, would it be through code or a system variable?
<lioka> phase1_: arch/arm/plat-sunxi/include/plat/i2c.h
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<oliv3r> Turl: ping
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<astr> uart howto?
<astr> got olimex usb serial connected to lime board, tried running as root "screen /dev/ttyUSB0 115200" but no output
<astr> asked on #olimex btw
<Turl> oliv3r: pong
<oliv3r> Turl: hey
<Turl> oliv3r: 'sup
<oliv3r> Turl: i'm just working on the sun4i -> sunxi bit, and you mention that sun4i is a machine (machine type right?)
<Turl> oliv3r: hm?
<oliv3r> i named it architecture
<Turl> ah
<oliv3r> so what is it
<Turl> ARM is the architecture
<oliv3r> yeah
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<oliv3r> but 'machine' sounds so generic
<oliv3r> and what is the difference between platform and machine type?
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<Turl> oliv3r: maybe you can ask for a good definition on #armlinux :)
<oliv3r> lol
<oliv3r> well you named it machine, why did you name it machine
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<Turl> oliv3r: because mach-sun4i? I dunno, I reviewed that like 6mo ago
<Turl> :p
<oliv3r> hahah
<oliv3r> 21st of may :p
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<oliv3r> but yeah
<oliv3r> some others took quite a lot longer :)
<Turl> oliv3r: what chapter is it?
<oliv3r> chapter 6
<Turl> I returned chap6 on the 15th of may
<Turl> sorry
<Turl> april
<Turl> 15/4 :)
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<oliv3r> oh wow
<oliv3r> the comments in the chapter are marked 05/21/2014 :)
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<Turl> oliv3r: maybe some software rewrote them. My copy also has comments from someone else on march
<oliv3r> ah really
<oliv3r> well i know the stuff gets mangled a lot
<oliv3r> a lot of doc/dot back and forth
<Turl> oliv3r: lately they've been sending me docx
<oliv3r> yeah same
<oliv3r> very annoying
<oliv3r> Turl: wasn't qware who released 2.6?
<oliv3r> mnemoc: knows these things better :)
<oliv3r> mnemoc: 2.6 was leaked by qware, 3.0 was dumped by AW?
<Turl> oliv3r: triple check with mnemoc, but http://linux-sunxi.org/Linux_Kernel#History
<oliv3r> ainol, qware
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<oliv3r> mnemoc: ^^^
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