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
<apritzel> naobsd: nice one!
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<willmore> please forgive my ignorance, but what's the importance of PF0-5?
<apritzel> willmore: that's where the MMC0 controller is connected
<apritzel> willmore: so you can boot and access an SD card via those pins
<naobsd> I got permission to use that photo on wiki, I'll update page later
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<willmore> Okay. Thanks, .... oh, they're gone.
<wens> naobsd: it says 'conductive adhesive', where can i get those? :p
<wens> or is that japanese for solder?
<willmore> wens, you can get a carbon powder laden glue.
<willmore> Works well for low current non-RF SMD rework.
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<wens> oh, nice, a23/h3 audio codec asoc driver bits merged
<wens> mfd and dts bits remaining
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<willmore> wens, half of a 'yeah!'
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<wens> looks like gmac in r40 is the new variant
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<miasma> wens: cool, so is the audio gonna be available in 4.10 or 4.11?
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<wens> 4.11, too late to get the dt bits in, and the mfd part for a23 isn't in either
<KotCzarny> cant convince them that dt bits arent unsafe?
<miasma> hm, 4.11 release will be around ~2017-04-23. opi pc is probably pretty obsolete already at that point. there's still some functionality left that needs patches, e.g. the usb otg ;-/
<mripard> KotCzarny: it's not really the point. The policy is to have all patches in next for two weeks at least so that they get proper testing, make sure it compiles in all scenarios, and so on
<mripard> 4.10 merge window opens in a bit more than a week
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<wens> sigh, r40 dram code does not match what is setup by boot0 from the bpi image
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<silviop> kernel 4.9-rc6 A13 tablet usb mouse not working , only mouse (usb keyboard ok) any ideas ?
<silviop> I use an HUB
<silviop> root@tablet0:~# lsusb -t
<silviop> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M
<silviop> |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
<silviop> |__ Port 1: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
<silviop> |__ Port 1: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
<silviop> |__ Port 2: Dev 6, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
<silviop> |__ Port 4: Dev 5, If 0, Class=(Defined at Interface level), Driver=asix, 480M
<silviop> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/1p, 480M
<silviop> |__ Port 1: Dev 2, If 0, Class=Vendor Specific Class, Driver=r8188eu, 480M
<silviop> .config semms ok
<silviop> device-enumerator: scan all dirs
<silviop> device-enumerator: scanning /sys/bus
<silviop> device-enumerator: scanning /sys/class
<silviop> unable to receive message
<silviop> Bus 001 Device 002: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter
<silviop> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
<silviop> Bus 002 Device 005: ID 2001:1a00 D-Link Corp. DUB-E100 Fast Ethernet Adapter(rev.A) [ASIX AX88172]
<silviop> Bus 002 Device 006: ID 046d:c050 Logitech, Inc. RX 250 Optical Mouse
<silviop> Bus 002 Device 003: ID 0461:0010 Primax Electronics, Ltd HP PR1101U / Primax PMX-KPR1101U Keyboard
<silviop> Bus 002 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
<silviop> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
<silviop> dmesg at mouse connection :
<silviop> [ 346.686338] usb 2-1.2: new low-speed USB device number 6 using musb-hdrc
<silviop> [ 346.840233] input: Logitech USB-PS/2 Optical Mouse as /devices/platform/soc@01c00000/1c13000.usb/musb-hdrc.1.auto/usb2/2-1/2-1.2/2-1.2:1.0/0003:046D:C050.0004/input/input7
<silviop> [ 346.853953] hid-generic 0003:046D:C050.0004: input: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb-musb-hdrc.1.auto-1.2/input0
<silviop> mouse appears in /dev/input but not work
<jelle> silviop: pastebins are really a great thing
<KotCzarny> silviop: always use pastebin for anything bigger than 1-2 lines
<silviop> ok ok
<silviop> there is a way to debug why not work ?
<KotCzarny> use another port
<NiteHawk> especially as it seems your device was connected to the OTG port ("MUSB") there
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<silviop> i swap port with keyboard
<silviop> keyboard work mouse not
<silviop> otg is set in host only mode in dts
<KotCzarny> maybe your mouse needs some additional kernel module
<MoeIcenowy> silviop: have you enabled evdev?
<KotCzarny> or that ^
<MoeIcenowy> CONFIG_INPUT_EVDEV=y or m
<KotCzarny> MoeIcenowy: kb wouldnt work without evdev too
<MoeIcenowy> KotCzarny: no
<MoeIcenowy> for virtual console, evdev is not used
<MoeIcenowy> but under X11 evdev is needed for keyboard
<MoeIcenowy> and for gpm, the "legacy mouse" is needed
<silviop> under X11 keyboard work
<silviop> i'm cheking .config
<MoeIcenowy> can you ls /dev/input/
<silviop> in input there is mouse0 and mouse1 (mouse 0 = touchscreen)
<silviop> mousedev enabled
<MoeIcenowy> how about event* ?
<silviop> mouse1 disappear if i disconnect mouse
<MoeIcenowy> you should have at least 4 event devices
<MoeIcenowy> oh at least 5 for a q8 tablet
<MoeIcenowy> one for the power key, one for volume key, one for touchscreen, one for external kbd, one for external mouse
<silviop> 5
<MoeIcenowy> could you install evtest program and execute it?
<silviop> Available devices:
<silviop> /dev/input/event0:axp20x-pek
<silviop> /dev/input/event1:ektf2127
<silviop> /dev/input/event2:1c22800.lradc
<silviop> /dev/input/event3:USB Keyboard
<silviop> /dev/input/event4:USB Keyboard
<silviop> Select the device event number [0-4]:
<silviop> but there are 5 events
<silviop> strange
<MoeIcenowy> plz pastebin ;-)
<silviop> no mouse as you see
<silviop> two keyboards but no mouse
<silviop> cat /proc/bus/input/devices
<silviop> sorry 6 events
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<silviop> should i not compile kernel with legacy psaux support ?
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<wens> mripard: what do you mean by "the current approach doesn't work"?
<mripard> wens: the current approach used by jean francois
<wens> jemk: do you have any references for the h3/a64 dram controller?
<montjoie> starting to really modify stmmac, not easy, all dma_ops need to be rewritten, some core file also
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<jemk> wens: some regs are similar to the zynq documentation, everything else is mostly based on reproducing register dumps
<jemk> wens: some small parts are from the bsp sources too, but there are no exactly fitting ones
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<wens> i got the dram code mostly working on the r40
<wens> however i only get half the capacity
<wens> the autodetection code gives row=15, page=4096
<jemk> the rank and buswidth detection doesnt work on h5 anymore, maybe r40 is similar
<codekipper> hi all
<wens> :(
<wens> codekipper: hi
<codekipper> I'm struggling to netboot my pine64 with my own kernel
<wens> jemk: otherwise i've got most of the registers matching boot0, except for some that aren't touched by either the released source code or u-boot spl
<codekipper> however netboot works with the armbian kernel and dtb. On my setup it complains "sunxi-mmc 1c0f000.mmc: fatal err update clk timeout"
<jemk> wens: but i havent seen any dualrank sunxi yet, and bw default is 32
<codekipper> is there any patches/config setup that are doing the rounds.
<wens> jemk: well the ram chip is supposed to be 16 rows, not 15
<wens> also switching dx ddr_clk & hdr_clk to dynamic breaks it
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<jemk> wens: can you send me the register dumps? (boot0&spl) then i'll look at it later today
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<wens> jemk: working branch here: https://github.com/wens/u-boot-sunxi/tree/r40
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<jemk> wens: i'll look at it more closely when i'm on pc again, but it looks like its more similar to h5, esp. the pir_qsgate wont work, try removing it
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<KotCzarny> maybe name building blocks with letters and create table for soc comparison? ie. a20 dram A, h3 dram B, pine64/h5 dram C
<KotCzarny> :)
* MoeIcenowy bought a 1024x600 Q8 tablet
<KotCzarny> 1GB ram? ;)
<Wizzup> yay!
<MoeIcenowy> 512mb still
<Wizzup> the one I have shows 1GB (on mainline)
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<silviop> q8 and 1Gb ?
<silviop> does someone try to use rtl8723bs_bt for bluetooth ?
<MoeIcenowy> silviop: me
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<silviop> work out of the box ?
<MoeIcenowy> needs dt alter
<silviop> to add serial port ?
<MoeIcenowy> yes
<silviop> do you have a link to serial port node ?
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<MoeIcenowy> see sun8i-a33-inet-d978-rev2.dts
<silviop> ok i see i should copy four nodes
<silviop> choose leds r_uart &uart1
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<MoeIcenowy> silviop: leds is not needed
<MoeIcenowy> onlu uart1 is needed
<silviop> dw-apb-uart: probe of 1c28400.serial failed with error -22
<silviop> leds is a typo i intend aliases
<MoeIcenowy> please check your sun8i-a23-a33.dtsi's uart1_pins_a section
<MoeIcenowy> if it have only two properties
<MoeIcenowy> then you are using a not-new-enough version
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<silviop> 4.9-rc5
<silviop> it has two pins
<silviop> PG6 and PG7
<MoeIcenowy> is there allwinner,pull and allwinner,drive in it?
<silviop> No
<silviop> can i copy uart0 ?
<silviop> 4.9-rc6 is as you describe
<silviop> i try to backport
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<silviop> [ 3.017287] 1c28400.serial: ttyS0 at MMIO 0x1c28400 (irq = 33, base_baud = 1500000) is a U6_16550A
<MoeIcenowy> congrats ;-)
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<silviop> ./rtk_hciattach -n -s 115200 /dev/ttyS0 rtk_h5 give interesting output , but finish with Can't set line discipline: Invalid argument \n Can't initialize device: Invalid argument
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<silviop> may some kernel .config
<silviop> i check is all is in place
<MoeIcenowy> have you enable uart bluetooth and h5 (3-wire) protocol in .config?
<silviop> no i not enbale bluetooth in kernel!!! Stupid
<silviop> too much things to check :-(
<MoeIcenowy> hahahahahaha ;-)
<silviop> if you enable a lot of things there are conflicts, if you not enable there is something not working is not so simple
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<silviop> ok seems all working, i will dedicate to gmeter
<silviop> gsensor
<miasma> i'd love to run linux on my cherry trail tablet, but the digitizer (among other things) isn't supported by mainline :-/ maybe there are some alternatives (with free drivers) that can be installed on top via usb/i2c
<miasma> it's pretty lame how even the audio isn't supported. there are some patches in github
<silviop> ok not by mainline but from patch ?
<scelestic> miasma: after a few tries i gave up on my cherry trial tablet, for whatever reason the device just hung
<scelestic> (randomly though)
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<silviop> For my experience from launch to decent mainline support can pass 1-2 years on new tablet
<silviop> but i'm based on arm
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<miasma> maybe allwinner tablets are better supported, but the specs looked promising for the x86 tablet. 4gb ram, 64gb storage, fullhd, 802.11n, bt 4.0, even usb3 iirc. around $200
<miasma> like 8-9 months ago
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<MoeIcenowy> miasma: digitizers usually do not matter
<MoeIcenowy> but the touchscreen chip do matter
<silviop> x86 as acpi , is simpler to support , arm not
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<miasma> MoeIcenowy: yea i was thinking about replacing it totally with something usb connected :)
<MoeIcenowy> USB mouse ;-)
<miasma> sure
<miasma> it's just not as handy
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<silviop> does someone know mir3da i2c gsensor ?
<silviop> It is'not in mainline , and i did'n found a patch
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<jelle> no info on the wiki
<jelle> iio drivers are quite easy ro write
<silviop> i will try to put in main line but i feel it's not DT ready
<jelle> the sensor or what are you talking about?
<silviop> i try to put you link in mainline
<jelle> oh good luck :)
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<MoeIcenowy> we have now still no a desktop can deal with gsensor rightly and can run well on 512MB ram Q8 tablets ;-)
<silviop> i know , only a try
<jelle> MoeIcenowy: doesn't gnome have some iio proxy?
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<MoeIcenowy> jelle: GNOME do not match the latter
<jelle> MoeIcenowy: that's probably true
<jelle> :(
<jelle> do want to test it some day..
<jelle> I'd expect it to use ~ 300 MB
<MoeIcenowy> to be honest, a GNOME can run on my Q8
<MoeIcenowy> with a single-page epiphany
<MoeIcenowy> but usually system with GNOME have two GNOME sessions running :-(
<MoeIcenowy> (user one, gdm one
<MoeIcenowy> when I'm doing the experiment, I used lightdm to login into GNOME, otherwise the second GNOME Shell will OOM
<KotCzarny> o.O
<KotCzarny> guys, remember windows95? running smoothly on 16MB of ram?
<MoeIcenowy> windows 95 do not use as much Javascript as GNOME Shell ;-)
<KotCzarny> and now we see the problem. bloat.
<MoeIcenowy> We may expect freemangordon's hildon port
<KotCzarny> yup, but they plan on porting to gtk3, eh
<mripard> KotCzarny: the OS that didn't have IP nor USB support ?
<KotCzarny> mripard, IP ? and usb landed there in last revision ;)
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<mripard> wasn't USB added in 98 ?
<KotCzarny> nop. there was an update for 95 too
<KotCzarny> win95 osr2.1
<MoeIcenowy> low budget and touch friendly systems are really difficult to find
<mripard> KotCzarny: my bad, but the argument is still valid though. It's a pretty weak argument to compare a system that was running on a hardware that was much simpler back then
<mripard> there's probably some bloat in our current systems
<mripard> but I'm pretty sure we'll say the same thing in 20 years :)
<KotCzarny> yeah, im just amazed what we had then, what we considered top-tier hw
<KotCzarny> and what our internet/os experience was
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<ErwinH> Did some tests with the OPi PC2 and the tx-delay and rx-delay aren't read properly from the DTB file. When I change the value's in the source code I can see changes in the throughput. (rx-delay at 31 and there isn't gigabit connection anymore)
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<jemk> wens: closer look says: same as h5, the dqs gate training isn't used anymore. it wasn't even necessary in h3, because the gate is always open, but there it didn't hurt and is used for rank/buswidth detection. now something changed, maybe they removed the hardware feature, and it messes up the whole process
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<jemk> this will make the following if useless, we have to find out how to do this detection in h5/... but since most boards have 32bit and only 1 rank defaults work
<willmore> ErwinH, I think tkaiser had looked at that. At least he had for the A64.
<MoeIcenowy> maybe furthermore banana pis will have more ram ;-)
<MoeIcenowy> someone from bpi said that it's laughed to be "8 banana pis 2 gb ram" ;-)
<willmore> So, 256MB each?
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<MoeIcenowy> willmore: 2gb each
<willmore> Oh, 2Gb each?
* willmore ducks
<willmore> Sorry, MoeIcenowy, couldn't resist.
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<pitillo> hello, does some know about a good power bus usb to power around 7 devices?
<pitillo> I've seen anker and key trademarks and I'm thinking in the anker, any opinion and/or sugestion?
<wens> anker is good
<wens> i have one that has 10 usb power ports
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<pitillo> I've been reading good reviews and check that there is a 8 port option
<pitillo> s/check/checked
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<willmore> Are these devices SBCs or something else, pitillo?
<MoeIcenowy> usb hubs ;-)
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<willmore> I'll just say that powering an SBC with a USB connection is just asking for problems.
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<willmore> That probably should be 'a SBC'.
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<miasma> pitillo: so do they also need to transfer data or just power the boards?
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<ErwinH> tkaiser: Your findings were right, the value isn't read correctly from the DTB. If you alter the source the delay is applied, but does not give much improvement. Max TX-speed I've seen so far is 58 MB/s, but have to recompile every time I change a value.
<tkaiser> ErwinH: Well, lets wait for apritzel's findings. Based on tests with A64 I would leave RX-delay at 0 and just test through TX-delay from 0 to 7 and see what's going on. BTW: Maybe the problem is related to loading initrd.img.
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<tkaiser> ErwinH: And please don't forget that the Xunlong OS images are currently limited to 1008 MHz cpufreq. Since iperf/iperf3 are CPU bound that limits numbers you get. Which OS image do you use for your tests?
<NiteHawk> is it just me, or is http://linux-sunxi.org/Linux_mainlining_effort#Status_Matrix becoming increasingly hard to view? i'm thinking it might be worth to consider transposing/swapping rows and columns...
<KotCzarny> nitehawk: i was talking about transposing long time ago ;)
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<KotCzarny> but consensus was 'too hard'
<KotCzarny> also, editing such table will be a pain
<NiteHawk> 'too hard' / error-prone to do manually?
<NiteHawk> and editing this one is fine? :D
<KotCzarny> try adding new soc on transposed table ;)
<NiteHawk> ah, okay - that's a valid point
<KotCzarny> otoh, if you find wiki plugin that can transpose table on the fly, go for it ;)
<tkaiser> NiteHawk: get a sunxi capable display ;) http://www.lg.com/de/ips/images/um95_content_01_01.jpg
<NiteHawk> soon i'll need two of those in multi-monitor configuration :D
<ErwinH> tkaiser: Xenial build with the orangepi SDK. Couldn't get another image running so far.
<ErwinH> Most fun is: Run 1: 50 MB/s, Run 2: 40 MB/s, Run 3: 36 MB/s. And the CPU is hardly warming up.
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<NiteHawk> KotCzarny: Semantic MediaWiki features a "transpose" parameter that can actually do that - unfortunately doesn't help us (i think)
<KotCzarny> javascript?
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<NiteHawk> might work, but also seems awkward. in that case i'd rather live with the table as it currently is
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<KotCzarny> seems easy enough
<tkaiser> ErwinH: I don't think throttling is an issue here but iperf3 process and IRQ processing running on the same core. Did you had a look in the github issue in the script's CheckPrerequisits function? This should prevent running both iperf task and IRQ processing on the same core.
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<tkaiser> ErwinH: Also without running htop in another shell you never get the idea when everything is just bottlenecked by one CPU core being busy 100%.
<pitillo> willmore: sorry for late answer. I want to connect some devices (cb/cb2/opipc/odroidxu4)
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<pitillo> some SBC... just to rack them and avoid a big amoubt of cables
<ErwinH> Different core helps a lot!
<ErwinH> 74MB/s atm.
<tkaiser> ErwinH: Well at least to check for the best TX/RX combination this seems mandatory, since otherwise result variations is way too high to draw any conclusions.
<tkaiser> ErwinH: And please keep in mind to always check both directions. And please use iperf3 since this also shows retransmit errors. Maybe just using the script I used? ;)
<MoeIcenowy> freemangordon: what panel do you used for your 1024x600 Q8?
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<ErwinH> Big parts of the script you used :)
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<willmore> pitillo, then please don't use usb for power. Most of those have proper barrel power connectors. Get a good quality 5V supply, some wire, and some of the right kind of jacks for the boards.
<willmore> You might also want to put some fusing in those power runs, pitillo. You don't want a large power supply to put all its power through one little board because a screw dropped onto a GPIO header and hit the wrong pins.
<TheLinuxBug> they muist have only had a small supply
<TheLinuxBug> cause they are gone
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<freemangordon> MoeIcenowy: compatible = "auo,b101aw03";
<freemangordon> because it was the first in the list with res 1024x600 :)
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<MoeIcenowy> freemangordon: mine also works with it ;-(
<MoeIcenowy> s/;-(/;-)
<MoeIcenowy> oh I forgot to say that I bought a 1024x600 Q8 ;-)
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<freemangordon> MoeIcenowy: good :)
<MoeIcenowy> but also only 512MB ram...
<freemangordon> MoeIcenowy: does android report 512 as well?
<MoeIcenowy> I didn't care how much Android reports
<freemangordon> why?
<freemangordon> does it lie?
<MoeIcenowy> it may lie
<tkaiser> TheLinuxBug: They were already gone when Jean-Luc posted about. I had a look on monday and everything was sold out (both LeMaker devices, the useless one too)
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<MoeIcenowy> but yesterday we found out how to get the real value under Android
<MoeIcenowy> use "busybox free"
<freemangordon> hmm, now I remember there was a .ko colled something like "memorysizehack.ko" or somesuch
<KotCzarny> o.O
<freemangordon> MoeIcenowy: waht about /proc/meminfo?
<MoeIcenowy> /proc/meminfo is easy to cheat
<MoeIcenowy> freemangordon: if you can get the .ko, could you send it somewhere?
<KotCzarny> open it and inspect drams?
<KotCzarny> if they are nonames, most likely fake
<freemangordon> MoeIcenowy: ok, gimme some time to boot the tablet
<MoeIcenowy> thanks ;-)
<MoeIcenowy> my tablet is getting its Linux rolling up
<freemangordon> BTW, is sound supposet to work with your kernel?
<freemangordon> *xuppsed
<freemangordon> aaah
<freemangordon> you got it :)
<MoeIcenowy> headphone is
<MoeIcenowy> if you want speaker
<MoeIcenowy> manually enable its GPIO
<freemangordon> ok
<MoeIcenowy> I forgot the value
<MoeIcenowy> (gpio id)
<MoeIcenowy> oh it's PH9 (233)
<MoeIcenowy> so please manually poke gpio233 to out mode and value 1
<MoeIcenowy> and I found some headphones will lead to the audio mixer to behave incorrectly (it's a mysterious thing :-(
<freemangordon> I am far from audio still, but anyway it is good to know
<pitillo> willmore: yeah, I understand what you told but lot of home made cluster reviews I've seen are using power bus to power them. I have power supplies for all devices but they are eating lot of space at my desktop. I was looking for an easy way to sort them (trying to avoid soldering/electrical boards
<MoeIcenowy> the audio driver is by Mylene.
<dgp> pitillo: A higher voltage (48v or something) DC bus and then local lower voltage supplies seems like a good idea to me. The local supplies can do over current protection etc without killing all of the nodes
<pitillo> the real question is if power bus provides a stable V/A for all busses, If they do, I can't see any problem if I attach an extra UPS to the power bus (keeping in mind the main question, if it provides stable V/A in all sockets)
<pitillo> dgp: I think these anker power buses are ~50V which shouñd be enought for 8 usb ports (theorically)
<KotCzarny> MoeIcenowy: headphones with additional ring?
<freemangordon> MoeIcenowy: ok, it seems I saw this in dmesg "[82.298658] meminfo_proc_show: fake_dram script_get_item err." not a .ko
<KotCzarny> or maybe just different resistance
<MoeIcenowy> KotCzarny: ah-oh
<MoeIcenowy> my old lichee do not have fake_dram things
<MoeIcenowy> KotCzarny: I know nothing for electronics.
<MoeIcenowy> I'm a CS student
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<KotCzarny> MoeIcenowy: im just guessing. but you should know a bit how electricity/magnetism work
<KotCzarny> apart from being useful, its fun
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<KotCzarny> fmg: maybe that fake started living as a testing module, then got snagged by some greedo
<KotCzarny> offtopic, ld.gold eating ~5GB of ram, madness
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<NiteHawk> what the heck are you linking? :D
<KotCzarny> droid. libwebchromium or something. told you, offtopic. ;)
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<KotCzarny> sad part is that could be 10x smaller, just cant pinpoint source of '-g' in cmdlines. and grepping 20gigs isnt that much fun
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<willmore> pitillo, a single power supply with several leads off of it will be smaller than a bunch of random power bricks and a power strip. You'll need something more than a USB cable for that XU4 anyway.
<willmore> dgp, I like that idea. Get a bunch of those little 2A variable buck mode DC/DC boards for $.40 from aliexpress and put one on each SBC then use a 12V or higher buss to feed them all.
* willmore doesn't buy anker stuff anymore. One bad power brick and lots of bad reviews by people who actually do testing have changed my mind on their 'quality'.
<KotCzarny> willmore: im using meanwell rd-50-5 for my opipc+opi+2e, and rd-65b for bpi-r1 + 2hdd
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<KotCzarny> so far it works beautifully. and nice thing is regulated voltage, bumping to 5.2V helps with crappy micro-usb cable
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<KotCzarny> s/cable/power jack/
<willmore> Meanwell? That sounds like a very questionable brand name choice. "Was it a good device?" "No, but they meant well." :)
<KotCzarny> :)
<pitillo> willmore: there are lot of examples of odroidxu4 and odroidc2 using these usb power supplies... I'll keep reading more about possible issues you told and I'll look for mlre alternatives to build something clean (I can't share any review from phone to show you an example). Thank you very much dor your comments and time
<KotCzarny> they arent stellar, but good quality for the price
<willmore> pitillo, no worries. I wish you the best of luck. I just don't want you to come up with some big solution that dissapoints you. I have been over at #odroid for quite a while and the #1 recommendation for any kind of system problem is "you're not powering it via USB, are you?"
<willmore> #2 is uSD cards that suck, right tkaiser?
<willmore> My SBC power supply is a little 50W open frame that I put in an old PC power supply case for protection. I have another that was actually an old PC power supply--I just put some bannana jacks on it and a small load resistor on the 12V(?) rail. Having 20A at 12V can cause problems from time to time, though. :)
<KotCzarny> wouldnt it be better to just use dual voltage brick?
<willmore> KotCzarny, I already had the power supply board from surplus, so...
<KotCzarny> all those little voltage regulators lose efficiency
<KotCzarny> nothing beats free stuff ;)
<willmore> KotCzarny, yes they do. One multi-output device is likely to be more efficient than a half dozen little things.
<willmore> Old PC power supplies are effectively free, too. They make great power supplies. Especially the older ones with high current on the 5V rail. Nowdays all the power is on the 12V rail.
<willmore> Great if you want to arc weld...
<KotCzarny> but pc bricks tend to be bad on efficiency too. especially if you just use one voltage
<willmore> True.
<willmore> But: Free
<KotCzarny> running inefficiently 24/7 eats free part sooner or later
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<willmore> I use the PC power supply as a bench supply, so it's not on unless I'm working on something.
<KotCzarny> i had a bunch of unused atx bricks, but playing with power meter quickly resulted in 'i need good, specialized power brick'
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<KotCzarny> those monsters can eat 20W just connected to 230V.
<MoeIcenowy> does anyone who uses a Silead GSLX68X-controlled touch screen met the situation that the touch is very inaccurate in some area near the edge?
<MoeIcenowy> I met this situation on my two tablets
<tkaiser> willmore: The 'USB problem' is mostly related to crappy cables (resistance), the crappy Micro-USB connector (adding contact to cable resistance and being rather limited regarding maximum current) and that a few boards that have a real power barrel and can be powered through (Micro) USB behave different.
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<KotCzarny> tkaiser: you can simulate crappy power by using microusb adapters on a barrel equipped board
<scelestic> KotCzarny: yeah atx psu's are well known for their energy inefficiencies, at least 10 years ago, made me switch to better ones early
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<tkaiser> KotCzarny: And you can do the other way around. I've a couple of adapters from 5.0/2.1 barrel to Micro USB and use them with el cheapo PSUs from Beelink (5.2V). No problems with undervoltage any more, only issue is that the board shouldn't exceed 10W consumption since tiny contacts (Micro USB still being crap for this purpose).
<tkaiser> A Micro USB jack simply encourages users to do it wrong, that's the most important part of the problem. If someone knows what he's doing then he can deal with it. If not then 'smart chargers' are used that provide not more than 500 mA or cables that lead to 1V voltage drop and so on.
<KotCzarny> hmm
<KotCzarny> maybe add a little script that runs @boot that waits for idle, measures voltage, does some work, measures again, if it detects too noticeable drop, print warning?
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<tkaiser> KotCzarny: No PMIC, no ADC, no voltage measurement. This is only something that's possible with tablet SoCs (A series) + AXP PMIC.
<tkaiser> Including cpuburn in u-boot would be enough. Simply deadlock the board in early boot stage. No 'strange' symptoms later, no corrupted filesystem, just a clear indication of 'something's wrong here'.
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<KotCzarny> true. :/
<KotCzarny> still, for pine64 it would help, as that community is clueless as heck
<KotCzarny> but your solution is good either, hehe
<tkaiser> With A64 it might work if the board design allows it. But I didn't find any sysfs node with BSP kernel so maybe even if there's an ADC no readout is implemented. And true, Pine64 is 'worst case' by definition here.
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<willmore> It may seem like a strange question, but, from looking at the power diagrams of a few boards, what do these SBCs even use 5V for? Mostly, they just use it to feed other regulators.
<KotCzarny> usb, sata
<willmore> tkaiser, some kind of stability testing would be a nice feature for armbian.
<willmore> KotCzarny, okay, A20 boards and those crazy ones with USB->SATA.
<willmore> But, those will have a need for more current to the drives than micro-USB is wise for.
<KotCzarny> and now you see the problem
<KotCzarny> ;)
<willmore> Oh, I've always been against micro-USB for power. I've not always been happy with the alternatives--the little connectors the c1 and C2 use annoy me. The larger 2.1 and 2.5 inner diameter ones are much better.
<miasma> willmore: well, usb assumes 5v dc. hdmi, ethernet,. ..
<willmore> miasma, do they? I thought the ethernet chips used 2.5V.
<willmore> HDMI I know very little about. Is that for the DCC functionality?
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<KotCzarny> hmm, either my 2303 just fried after running logcat, or win7 went crazy
<miasma> willmore: doesn't ethernet have +/- 2.5 ?
<miasma> which might be easier to achieve with 5V
<willmore> miasma, I think that happens via the transformer.
<miasma> ok
<willmore> Don't quote me, though. I should go review a schematic.
<miasma> i'm not sure if they always use transformers
<miasma> e.g. if the phy is builtin
<miasma> it's easy to do a voltage divider
<miasma> willmore: anyway, since the boards have usb host ports, they need 5V at least. also the gpio pins have 5V out
<KotCzarny> 5v on gpios are usually direct from dc-in
<KotCzarny> on most boards. but not on all probably
<KotCzarny> hmm. might be that usb host on my laptop hung. or died.
<KotCzarny> mouse stopped working too
<KotCzarny> whoop dee frigging doo.
<miasma> btw there's this problem with uart in sunxi boards that current is accidently fed back via the uart pins. have you tried if adding a resistor there helps? would the communication still work?
<miasma> KotCzarny: if you didn't break it, resetting the host might help
<miasma> polyfuses might also take some time to recover
<willmore> Maybe it was a bad choice, but looking at the schematic for the Opi Z, there is no direct use for 5V. But it does have HDMI and SPDIF as consumers of the 5V rail.
<miasma> people also expect the boards to work with any phone charger these days :)
<miasma> smaller MCUs are often also 3.3V, but people buy bigger versions of boards with micro usb and onboard regulators
<willmore> The ethernet only uses 3.3V and that's just for the LEDs.
<willmore> A differential signal feeds the ethernet transformer, that's where the 5V P-P comes from.
<KotCzarny> umkay. rebooted windoze fixed. (dont know how to reset usb host on win7)
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<miasma> willmore: ok, good to know. i've just assumed that the transformer only isolates without changing the voltages
<willmore> miasma, if it's a 1:1 then it won't change the voltages. But, a 2.5V differential signal is 5V P-P.
<miasma> right
<tkaiser> willmore: The 5V 'requirement' originates from USB and HDMI.
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<KotCzarny> what voltage camera runs?
<tkaiser> 3.3V and 1.8V
<willmore> tkaiser, yeah, that's what I'm seeing. 5V goes to the HDMI and obviously to the USB. KotCzarny camera gets 5V, but regulates it lower, I would bet.
<tkaiser> Camera on OPi One and PC with the 'extension board' in between works flawlessly with DC-IN at 4.5V
<willmore> Ethernet runs from a 2.5V supply--now looking at the Opi PC2.
<willmore> tkaiser, doesn't that board house a regulator?
<willmore> So, the board should be sane down to 3.3V+regulator drop. HDMI, USB, and camera may not work, but the *board* should be okay.
<KotCzarny> i would toss 5V on gpio as an early requirement, rpi compatibility was a must then
<willmore> So, I am confused why boards get flakey at 4.8V.
<KotCzarny> willmore: voltage drops
<willmore> Oh, good point, KotCzarny. For completeness sake.
<willmore> KotCzarny, which ones?
<KotCzarny> willmore: cpu+usb + crappy psu ?
<willmore> KotCzarny, I'm thinking of 4.8V *at the board*. So, after all the crap.
<KotCzarny> nah, crappy psus drop voltage even further when load rises
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<tkaiser> willmore: 4.8V there are fine for everything except USB and HDMI. There's 4.75 and 4.8 IIRC (or 4.6V)
<willmore> I think I need to hook the bench power supply up to some boards via GPIO, load them up and do some testing. What was the recommended stability testing method? Some version of some matrix math.
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<tkaiser> willmore: The problem is really that voltage drops under load and short load peaks then do the mess.
<willmore> tkaiser, so I need to put a scope on the power, too and set it to trigger on those drops.
<KotCzarny> if you want to test load just run cpuburn-a7
<tkaiser> willmore: Light load is 'sysbench' (useless for everything else, especially benchmarking), heavy load is cpuburn
<willmore> tkaiser, there was a program that did matrix math--and which I'm blanking on--which did some checking and could tell if operations had failed.
<tkaiser> Linpack, the NEON optimized variant. Uses OpenBLAS.
<willmore> That's it.
<tkaiser> willmore: But that's different things: 2 sorts of undervoltage ;)
<tkaiser> DC-IN vs. VDD_CPU.
<willmore> Good point. Another scope probe on the CPU VDD line, then, too.
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<Ntemis> tkaiser: i want to ask you something that doesnt belong here, can i?
<KotCzarny> [box standby] CPU0 go to WFI
<jelle> tkaiser: not cute, it's awesome!
<KotCzarny> in this mode board is on or not?
<KotCzarny> because it turns on after power button press
<KotCzarny> and power draw was <0.00A
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<willmore> tkaiser, I will print that right now! I'll do it in orange and white, too.
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<KotCzarny> we definitely should make power button work.
<KotCzarny> it's very nice functionality.
<KotCzarny> darn those android users and their spoiling with additional functionality *grumble*
<jelle> does the power button for an arm board work like the power button on my laptop?
<jelle> if supported?
<KotCzarny> jelle: its just a gpio button
<KotCzarny> but bootloader can detect it was pressed and loads just to wait for another press
<jelle> hmm
<KotCzarny> but as i've said, power meter was showing 0.00A
<KotCzarny> which means for the mobile applications it's something to consider
<KotCzarny> (when powered via external battery)
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<KotCzarny> jelle: most likely its done via interacting with openrisc core. and i will see into it after i finish with the droid
<KotCzarny> ok, update, powermeter shows 0.01-0.02A
<KotCzarny> still nice
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<willmore> KotCzarny, what board?
<KotCzarny> opipc
<KotCzarny> but most likely any H3 board
<KotCzarny> (and related ones with risc core)
<willmore> Ahh, okay. I was looking at power consumption of my Zero when I did a power off. It was 0, but the meter only goes down to 0.00A.
<willmore> Legacy kernel running armbian.
<willmore> I could put it on the bench supply and see how it does.
<KotCzarny> yeah, 3.4.113, but running android
<willmore> I can doe the same for the One if you'd like.
<willmore> Ahh, Android. Never messed with that.
<willmore> I keep pondering doing it on an ODROID C2. That would be pretty beefy for Android. :)
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<hark> hi, anyone knows when leds are supposed to go on on the H5 orange pi
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<hark> or, how to figure out if it is not dead
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<jernej> NiteHawk: You can also update A10 user manual from Allwinner's github. This is the first datasheet where I saw TV out registers description. Old pdf on wiki doesn't include it.
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<NiteHawk> jernej: it's a wiki, feel free to upload those file and edit the page yourself?
<jernej> well, you need special permissions for it?
<jernej> let me make an account first :)
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<NiteHawk> jernej: afaik - no, editing rights should suffice
<NiteHawk> ah, okay - i see you're already at it. nice
<jernej> NiteHawk: I noticed. I already added, although A10 documentation section seems to have URLs instead of wiki links
<NiteHawk> yes, some are pointing to the older (FTP, i think?) server where it's harder to upload files
<jernej> they point to http://dl.linux-sunxi.org so this is not used anymore?
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<NiteHawk> afaict, you'd need special permissions / a separate account there - so it's a lot less convenient
<NiteHawk> it makes sense for bigger files like tarballs of e.g. kernel or SDKs, but not for reasonably small PDF documentation
<jernej> I see
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<jernej> MoeIcenowy: Can you test this branch: https://github.com/jernejsk/u-boot/tree/h3_hdmi_unscrambled ?
<jernej> MoeIcenowy: This one is using magic value to change register offsets to defaults for DWC HDMI core.
<jernej> MoeIcenowy: I also found TV out register description in A10 manual and it fortunatelly seems that H3 has same IP core.
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<philectro__> hello
<philectro__> is allwinner participating upstream on the kernel now?
<jernej> where did you get that idea?
<jernej> no
<philectro__> jernej, that's called hope :p
<NiteHawk> after "root_my_device" maybe we should be thankful they don't... x)
<jernej> philectro__: At least one have it :)
<philectro__> so
<philectro__> which companies are doing that?
<philectro__> someone asked me about an arm board for an open source project
<philectro__> i don't think i could recommand allwiner socs
<philectro__> recommend *
<jernej> Older ones are very well supported in mainline
<jernej> depends what you want
<philectro__> he asked for a board that is going to be used as server
<jernej> in the past there were already interesting discussions if Allwinner boards are suitable for servers
<philectro__> i have buy a cubie1 for myself
<philectro__> using it as server
<jernej> imo, you should buy server grade HW for that
<philectro__> i had trouble but it's mainly for the faulty usb cable sell with
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<apritzel> philectro__: Marvell SoCs seem to be a good candidate for that, though they are more expensive and not as readily available
<apritzel> philectro__: or Rockchip, who are now actively participating in Linux development
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<philectro__> thanks
<apritzel> though a typical Rockchip is not very server-y, but should be better than Allwinner
<Ntemis> how about amlogic?
<philectro__> amlogic like the one in odroid c2 :)
<philectro__> i like that this board has heatsink
<philectro__> have*
<Pepe> Amlogic hired 3rd company, which they handle it for them. So you will have very soon mainline kernel for it ;-)
<apritzel> Pepe: there seems to be some Odroid C2 support in mainline kernel already
<philectro__> good to know
<philectro__> the odroid c2, with it's heatsink is the "more serious" cheap board i have see
<philectro__> my A10 get 70degree in just some seconds of work (okay maybe a minute but well you get the idea)
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