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
<shadeslayer> I don't even know how, but I managed to get back to that CPU reset
<shadeslayer> ah maybe because u-boot stopped before trying to boot from the card
<shadeslayer> apritzel: ^^ does that help narrow down the issue?
<shadeslayer> maybe it's the ext4 fs that's causing issues?
<apritzel> shadeslayer: so you use a proper bl31.bin now?
<apritzel> how big is it, actually?
<shadeslayer> 36K bl31.bin
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<apritzel> mmh, that's still quite big
<shadeslayer> apritzel: https://paste.kde.org/pb0oewzel < I built the atf again
<shadeslayer> still 36K
<shadeslayer> could be one of the other flags
<apritzel> shadeslayer: so you just added it to CFLAGS, right?
<apritzel> so the linking steps don't get it
<shadeslayer> indeed hm
<shadeslayer> what's the flag for that?
<apritzel> IIRC you need something like -no-pie for ld
<apritzel> without the "f"
<apritzel> but that was a bit confusing, since apparently Ubuntu/Debian deviated from upstream in this respect
<shadeslayer> it ... fails
<shadeslayer> don't think it's -no-pie then
* shadeslayer looks at man page
<apritzel> shadeslayer: also the AS command lines don't have it
<shadeslayer> yeah I noticed that line 5 for eg does not have it
<shadeslayer> -fno-PIE only occurs later on in the build
<shadeslayer> I'm starting to get pissed off at Debian's ASLR nonsense now :P
<shadeslayer> apritzel: and perhaps this should get added to ATF's makefiles
* shadeslayer downloads Linaro's toolchain
<shadeslayer> 32K build/sun50iw1p1/debug/bl31.bin
<shadeslayer> stupid debian
<apritzel> well, Linaro is broken in other ways ;-)
<apritzel> If I got the ATF team correctly, they take this seriously, but need some prove first that it's really PIE support that breaks it
<shadeslayer> *nod*
<apritzel> shadeslayer: where did you get the compiler from? apt-get from Stretch?
<shadeslayer> apritzel: apt-get from testing
<apritzel> which is Stretch atm, right?
<shadeslayer> history says : sudo apt install cpp-aarch64-linux-gnu gcc-aarch64-linux-gnu
<shadeslayer> apritzel: well yeah, but I have the testing target not stretch
<apritzel> I C, thanks
<shadeslayer> cheers
<apritzel> I wanted to try it the other way round: enable PIE on my compiler and see it breaking
<shadeslayer> makes sense
<shadeslayer> huh, u-boot built with linaro also gives me the same thing :S
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<apritzel> shadeslayer: so which branch is this, exactly?
<shadeslayer> u-boot master, ATF from your allwinner branch
<apritzel> shadeslayer: but that won't give out ATF load support
<shadeslayer> aa75c8da415158a94b82a430b2b40000778e851f on ATF and ee6fb217cbf3e81cd2c5f1a13f989cf59016781f on u-boot with that one patch you linked above
<shadeslayer> apritzel: oh, do I need to use your branch?
<shadeslayer> for u-boot?
<apritzel> yes
<shadeslayer> moment
<apritzel> sunxi64 should work, even without the patch
<apritzel> sunxi64-beta it is, actually
<shadeslayer> same thing :S
<shadeslayer> oh oh
<shadeslayer> moment
<shadeslayer> apritzel: what linaro toolchain is the ATF team using?
<apritzel> dunno, some recent, probably
<shadeslayer> and I exported the path incorrectly before, with the right path, ATF is back to 36K
* shadeslayer writes a new zsh function
<apritzel> shadeslayer: ??? So what settings made you get the 32K binary?
<apritzel> shadeslayer: and you are sure that it's not using the distro compiler still?
<shadeslayer> let me figure that out :P
<apritzel> make V=1 ... and look at the compiler it actually calls
<BenG83> is that the right compiler?
<apritzel> BenG83: looks sensible, but haven't tried it
<BenG83> I have those two toolchains that I used to build for the PB:
<BenG83> [benjamin@Deepblack opt]$ ls -l
<BenG83> drwxr-xr-x. 8 11827 9000 4096 Feb 16 03:14 gcc-linaro-6.3.1-2017.02-x86_64_aarch64-linux-gnu
<BenG83> drwxr-xr-x. 8 11827 9000 4096 Feb 16 02:15 gcc-linaro-6.3.1-2017.02-x86_64_aarch64-elf
<BenG83> total 12
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<shadeslayer> what's the difference between the two?
<BenG83> one makes bare metal binaries
<BenG83> the other linux binaries
<apritzel> BenG83: well, the Linux compiler can make bare-metal as well ;-)
<BenG83> maybe, I am no expert on that
<BenG83> ;)
<BenG83> I think I used two because MoeIcenowy told me to
<apritzel> except for if PIE is enabled by default ;-)
<shadeslayer> so bare metal one does produce 32K
<shadeslayer> and still causes CPU resets ...
<shadeslayer> BenG83: which one of those toolchains comes first?
<BenG83> my bl31.bin is has a size of 20484 byte
<BenG83> iirc I used the elf toolchain for u-boot and atf
<shadeslayer> ok
<shadeslayer> let me try again
<BenG83> but I did not build the same source as you
<apritzel> BenG83: technically that is right, but both ATF and U-Boot's Makefiles make sure that a libc-enabled compiler works as well
<BenG83> ah ok
<apritzel> BenG83: with -ffree-standing, for instance
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<jernej> apritzel: Did you test my video driver again? Last time we talked there were some issues...
<apritzel> jernej: oh, sorry, I think that is my bloody cable to blame for those "noises"
<apritzel> I tried a better cable on another monitor and everything was fine
<jernej> ok, great to hear
<apritzel> I still have to test another video source with the same cable to be really sure, but it smells like an "analogue" problem, really ;-)
<jernej> do you by any chance know when will H5 support go from sunxi to main git repo?
<apritzel> jernej: I guess in the merge window
<jernej> I have troubles creating patches
<jernej> Some are sunxi related and some rockchip and they depends on each other
<apritzel> though Tom hasn't answered on this yet
<apritzel> jernej: yeah, sounds like fun
<shadeslayer> what the xD
<apritzel> jernej: I am afraid you have to merge those or cherry-pick one set on top of the other
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<shadeslayer> apritzel: building *without* -fno-PIE and distro compiler leads to atf being 32K
<jernej> apritzel: ok, I will try something
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<shadeslayer> so atleast the mystery of how to get a 32K ATF is solved
<shadeslayer> I also see
<shadeslayer> # needed for relocation
<shadeslayer> LDFLAGS_u-boot += -pie
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<shadeslayer> in arch/arm/config.mk
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<shadeslayer> apritzel: can you send me your ATF? I want to try your ATF + my uboot, I think that worked last time right?
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<apritzel> shadeslayer: yup, just a sec
<shadeslayer> thanks for bearing with me on this, I have no clue whats going wrong here :(
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<shadeslayer> apritzel: uh that bl31.bin is 36K too
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<apritzel> huh? 32776 Bytes
<shadeslayer> $ du -h /tmp/bl31.bin
<shadeslayer> 36K /tmp/bl31.bin
<shadeslayer> thats the same size I get when I compile it with -fno-pie
<shadeslayer> yeah nope, still fails
<apritzel> wget -q -O - http://filebin.ca/3EEd3GVcJNcb/bl31.bin | wc -c => 32776
<shadeslayer> $ du -b /tmp/bl31.bin
<shadeslayer> 32776 /tmp/bl31.bin
<shadeslayer> right I guess du is trying to round it off or something
<apritzel> oh, you are using du
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<shadeslayer> apritzel: if that's a known good atf then the issue is with u-boot
<apritzel> well, yes, it gives you the size it used on your disk
<shadeslayer> right :)
<apritzel> stat -c %s bl31.bin
<shadeslayer> apritzel: here's my u-boot.itb http://chunk.io/f/06bc57a91b4f4ef8bfb5e262af294310
<apritzel> shadeslayer: with which compiler did you compile U-Boot?
<shadeslayer> distro one
<shadeslayer> without -fno-pie since u-boot seems to enable that at link time?
<shadeslayer> let me make a notepad somewhere to keep a track of things
<apritzel> shadeslayer: the configure options might be useful, so I could try to rebuild one
<shadeslayer> okie
<shadeslayer> I'm tired now, so I'll stop
<shadeslayer> apritzel: but can you give me your u-boot with spl so I have something to work with tomorrow
<shadeslayer> since clearly I can't build one
<apritzel> just need to fine a sane branch in my messy tree ;-)
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<shadeslayer> sure np :)
<apritzel> without those: "DANGEROUS: efuse write access" commits ;-)
<shadeslayer> haha
<apritzel> you could personalise your board with this
<apritzel> ;-)
<shadeslayer> heh :P
<shadeslayer> thanks, works :D
* shadeslayer backs it up
<apritzel> this one should have a .dtb suitable for the kernel as well
<apritzel> so you wouldn't need to load one, just use $fdtcontroladdr
<shadeslayer> oh cool :)
<shadeslayer> apritzel: but then I need to mess around with the dts to add the nodes for drm
<apritzel> which you could easily do with the "fdt" command on the U-Boot prompt
<apritzel> with a bit of hacking you should be able to replace DTs without rebuilding
<apritzel> I am working on a tool for that
<shadeslayer> ah cool
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<shadeslayer> something for tomorrow :)
<shadeslayer> night night :)
<pitillo> hello, good night. Do you know which CFLAGS are recommended for SOC optimization (march, mcpu and mtune) for the orangepiPC (AllWinner H3)? Are -mcpu=cortex-a7 -mfpu=vfpv4-neon safe?
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<willmore> pitillo, that looks okay.
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<pitillo> willmore: looks but I think they aren't right... -mtune= neon-vfpv4 better (my typo). I'm on the way rebuilding a set of ports. Thank you for taking a look and answering :)
<pitillo> giving a rebuild on the odroidxu4 too, changing the cpu to cortex-a15
<igraltist> pitillo: are you running an ondroidxu4?
<igraltist> i would like to know what would the write and read speed if using luks for encryption
<pitillo> igraltist: yes, too (efikamx/rpi/cb1/cb2/opipc/odroidxu4/pine64)
<igraltist> the usb3 slot make the very interesting for small fileserver
<pitillo> It'll be unavailable until sunday night/monday morning probably (currently is rebuilding a set of core ports and I'll let it "eating")
<igraltist> i will query u next week :D
<pitillo> that's fine :)
<pitillo> which kind of test do you need? Can you explain a bit? It'll have only a small amount of ports
<igraltist> the only important is what is the transfer speed on gbit when using encryption
<pitillo> I have gigabit ethernet and I can play with my laptop or the pine64... plain transfer were very good when I tested with iperf (~100MB/s)
<pitillo> if I remember right
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<igraltist> this is nice
<igraltist> i know benchmark are one parts and to see in daily work what is transfered is other
<pitillo> sure... I knew gigabit ethernet only at work... just bought a gb ethernet switch for home and now I miss gb support in some devices :)
<igraltist> my rpi as music station even need only 10Mbit/s
<igraltist> i have the same here but not all need gbit only main machine
<pitillo> interesting... march armv7-a vs armv7ve for cortex-a15. Forcing this last one better
<willmore> pitillo, IIRC when I last looked into this, the syntax for those commands completely changed between a few compiler versions. What are you using?
<willmore> igraltist, I have a C2 here is you want data from it.
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<igraltist> willmore: iam looking for the xu4 because the usb3
<pitillo> willmore: gcc 6.3.0 after a bump to 6.4.0
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<pitillo> s/after/before (sorry)
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<igraltist> pitillo: which kernel version are you using on opipc?
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<pitillo> igraltist: prebuilt one... I've not able to get a custom one running (not many time to deep on it neither) 3.4.39-01-lobo (I belive it's from archlinux)
<igraltist> ok
<igraltist> hmm somewho i did something missconfigure in the kernel on opipc, because now its does not compile e.g php7 anymore its just get hung
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<silviop> i'm trying to generate uboot timings for http://www.notebook-lcd.ru/pdf/QD17EL07_REV_11.pdf
<silviop> i try (x:640,y:1024,depth:24,pclk_khz:54000,le:10,ri:10,up:10,lo:10,hs:1,vs:1,sync:3,vmode:0) LCD panel timing details
<silviop> does anyone have experience in writing such timings ?
<silviop> the panel is dual channel but i create an Y cable to feed two channels from only one supported by uboot
<silviop> my scope is to validate my setup for try to add dual lvds channel support on u-boot A20
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<plaes> silviop: did you see the LCD wiki page?
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<silviop> it's not a tablet i don't have fex file (cubieboard1)
<plaes> I have written timing line for Gemei G9 tablet
<silviop> but you have a tablet
<plaes> yeah, I had existing FEX
<silviop> there are a lot of cheap lcd screen from old monitor or notebook
<silviop> that can be recovered
<plaes> timing info seems to be on page 11 of the datasheet
<MoeIcenowy> there's really no manual for writting a timing from datasheet
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<silviop> in lcd panel timings there are 10 variable number in datasheet only five (1024,640,1066,844,54Mhz) i try to understand meaning of that but
<silviop> semme i lack of information
<plaes> yeah, that's the problem with cheap lcd screens
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<silviop> in all datasheet there are range in all values , so timings are not so mandatory
<silviop> you can try to guess right values but i lack of experience
<plaes> just look at similar-sized lcds and try to adapt
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<silviop> http://www.udmgroup.com/ftp/M170ETN01.1.pdf semm similar 7 of 10 parameters
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<silviop> 8 with depth that should be 24
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<BenG83> MoeIcenowy, <tllim> BTW, manage to change the UART connection to earphone jack on last minutes. Now no need to share with USB/ORG port
<montjoie> wens: bpim3 with dwmac-sun8i on top of your branch booted
<MoeIcenowy> BenG83: I know it
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<MoeIcenowy> montjoie: did it connect to network?
<montjoie> MoeIcenowy: yes
<montjoie> surprised that it works on the first try:)
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<montjoie> and without PCSI, iperf is still the same 400MB/s both way
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<Putti> I was grepping linux's source code but I cannot figure out how the device tree property "usb0_vbus-supply" of sun4i-usb-phy gets in use. Does anyone know ?
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<BenG83> maybe for u-boot?
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<Putti> BenG83, but does u-boot code run after the kernel is up? Or do you suggest that u-boot also parses the *.dtb file provided?
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<Putti> is linux bootloader agnostic? If it is, why there would be any u-boot related things?
<BenG83> afaik U-boot also uses the dtb
<BenG83> or can at least
<BenG83> to configure things like power management early
<BenG83> or setup display hardware for simplefb
<Putti> BenG83, u-boot has it's own dtb, separate from the kernel's
<plaes> err, wrong link
<Putti> plaes, that is just for the property *power-supply, and not *-supply?
<MoeIcenowy> Putti: a function can automatically parse *-supply
<MoeIcenowy> and you should only psas "usb0_vbus" to it
<MoeIcenowy> and I think in phy-sun4i-usb.c it's "usb%d_vbus"
<Putti> MoeIcenowy, okay
<Putti> Thanks
<Putti> MoeIcenowy, I'm trying still to solve the usb port not giving any power problem. Could "sun4i-usb-phy 1c19400.phy: could not find pctldev for node /soc@01c00000/pinctrl@01c20800/usb0_id_detect_pin@0, deffering probe" be related to it?
<MoeIcenowy> usually not
<Putti> ok
<MoeIcenowy> as it occur only due to sun4i-usb-phy get probed before pinctrl device
<MoeIcenowy> "deffering probe" is a usual thing
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<Putti> and later it will be probed again?
<BenG83> has anyone done DRAM parameter tuning on A64 boards?
<BenG83> I read up on the wiki about the work done on A10/....
<Putti> MoeIcenowy, does your Q8 tablet use axp22_dcdc1 for the usb power regulator?
<MoeIcenowy> of course not ;-)
<MoeIcenowy> dcdc1 is a 3.3v used for 3.3v io
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<Putti> MoeIcenowy, hmm, I have this entry in my fex: usb_regulator_id_vbus = "axp22_dcdc1"
<MoeIcenowy> I think it's not usb0's vbus...
<MoeIcenowy> as dcdc1 is always-on
<MoeIcenowy> if dcdc1 is off the system will be dumb ;-)
<BenG83> maybe there is a booster converter after DCDC1?
<BenG83> *boost
<Putti> it is for [usbc0]
<MoeIcenowy> BenG83: if in this way vbus will be always on ;-)
<MoeIcenowy> Putti: are you still checking your A33 Q8?
<Putti> checking?
<MoeIcenowy> trying to make it work ;-)
<Putti> yes
<Putti> the fex from the tablet is http://paste2.org/6I9bKeYL
<BenG83> Pine has the 5V converter on the PS rail of AXP803
<BenG83> that is also always on if the AXP is on
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<MoeIcenowy> Putti: it's a generic config of Q8 tablet.
<MoeIcenowy> nothing special.
<Putti> I think I will then try to play around with the kernel config a bit
<Putti> and maybe look how u-boot does it as there the usb port gives power
<MoeIcenowy> u-boot will only enable host mode.
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<MoeIcenowy> have you loaded gadget as what I said?
<Putti> but I want just host mode, as I just plug the keyboard there?
<Putti> I think I loaded gadget but something might have went wrong
<MoeIcenowy> if you do not load gadget, the MUSB won't finish its initialization
<Putti> how to know whether it has finished initialization?
<MoeIcenowy> I don't know
<MoeIcenowy> it's something a little strange
<Putti> ok
<MoeIcenowy> or you can try to alter device tree, change dr_mode in &usb_otg to "host"
<MoeIcenowy> but thus you will lost gadget function at all
<Putti> gadget function is not important for me at the moment :)
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<BenG83> I am building a new Gentoo test image for my Pine64 based on mainline kernel, is it worth having extra compiler/linker switches for A53 vs. generic arm64, does anyone have experience with that?
<willmore> BenG83, you mean like -march -mtune ?
<BenG83> yeah
<willmore> I do not. I just wanted to make sure I understood.
<BenG83> I played a lot with those back when Gentoo was relatively new on x86
<BenG83> but have long since just used the defaults for my normal PCs
<willmore> BenG83, google makes it look like those should be safe for kernel compilation.
<willmore> -mtune=native should always be good.
<willmore> Assuming you're self hosting. :)
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<MoeIcenowy> Gentoo... you are brave
<BenG83> I have been using Gentoo for a long time ;)
<BenG83> never cold in the winter
<MoeIcenowy> ;-)
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<Putti> I got USB power working! Yay, but not sure what I did in order to make it work :D
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<Nemo_bis> :D
<BenG83> but hey, Gentoo is getting stable profiles now for arm64
<willmore> Putti, if you don't know what you did to fix it, you didn't actually fix it. ;)
<Putti> I changed bunch of kernel configs and it magically started working
<Putti> I think I now will start to disable one by one them and see which one made it work
<willmore> That seems wise.
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<Putti> has anyone tried to reverse engineer the RTL wifi chip firmware, like the binaries that are in https://github.com/jwrdegoede/rtl8723bs ?
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<MoeIcenowy> Putti: it's veeeeeeeeeeeery difficult.
<BenG83> is it know what the efuse map for those RTL chips does?
<BenG83> or is that just regulatory settings for RF emissions control?
<BenG83> *known
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<apritzel> BenG83: In my experience those GCC optimization parameters are mostly snake oil in practise
<apritzel> BenG83: optimisation opportunities lie somewhere else
<BenG83> yeah I am trying to find out what mcpu=cortex-a53 actually does in gcc
<apritzel> also I wouldn't expect the A53 to be a worthwhile optimisation target
<apritzel> BenG83: usually it fine tunes the instruction ordering to meet the microarchitecture
<KotCzarny> well, compile some benchmarking suite for a quickie?
<apritzel> but I'd guess there is not much to gain here on an A53
<apritzel> KotCzarny: to get what? benchmark numbers?
<KotCzarny> apritzel, yah, for a quick checkup if anything changed
<KotCzarny> not for real gains, just to see if it changed anything
<apritzel> seriously: on those chips the everyday performance is severely limited by the abysmal memory and I/O performance
<apritzel> whether you gain one to two cycles here or there doesn't really matter
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<apritzel> there may be exceptions for some very specific programs, but tuning a whole distro compilation for it sounds pointless to me
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<KotCzarny> apritzel, unless particular distro was compiled in some very conservative flags in the first place
<apritzel> KotCzarny: there are no "conservative" flags for AArch64
<KotCzarny> -O2 vs -O3 ?
<BenG83> Gentoo default cflags are usually pretty ok, but there are not many aarch64 users out there atm
<apritzel> KotCzarny: those are GCC generic optimisations, like loop-unrolling and stuff
<apritzel> optimising on x86 for the newest CPU may make a difference compared to the original, generic Athlon64 target
<Putti> MoeIcenowy, probably, it would be at least educational
<apritzel> since there are more than 10 years of development between those two
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<KotCzarny> what are default cflags in his case?
* Putti looks into reverse engineering techniques...
<BenG83> so I guess finding good DRAM parameters for a board is more wortwhile?
<apritzel> BenG83: indeed
<BenG83> has anyone done that for A64 boards?
<BenG83> I was comparing dram_para from original AW images with what I use atm yesterday
<apritzel> BenG83: Theobroma did
<apritzel> they run their board with proper DDR3-1600 parameters, apparently
<MoeIcenowy> P.S. I'm considering finally kick ATF out on A64
<apritzel> BenG83: beeble should know more
<BenG83> ok
<MoeIcenowy> If we can gain AXP support in SPL, what we must have of ATF is only PSCI
<apritzel> MoeIcenowy: yeah, back to 2011!
<MoeIcenowy> I think U-Boot have PSCI framework
<apritzel> MoeIcenowy: don't forget OPTee
<apritzel> don't forget errata workarounds
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<apritzel> MoeIcenowy: don't forget PSCI 1.0 support
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<MoeIcenowy> ah...
<BenG83> I don´t know how much time ChipHD spent with that on the pine/sopine/pb boards, but the original images come at least with different parameters, but those boards also have different DRAM layouts...
<MoeIcenowy> P.S. Pine64's DRAM settings totally failed on BenG83's Pinebook 1st batch sample ;-)
<BenG83> from an electrical standpoint, sopine should be the easiest to tune
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<MoeIcenowy> P.S. I may get a SoPine tomorrow
<BenG83> I saw the approach using lima-memtester for A10/... is that still a valid option for A64 type dram controllers?
<ssvb> BenG83: yes, it should be valid too, but will not work out of the box
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<BenG83> I could start and ask Tl if they can extract differential length data from their ECAD for pine PCBs, we usually do that for boards at work
<BenG83> to check if DRAM busses are within the window for autocalibration to work
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<BenG83> impedance matching is more or less trial and error if one doesnt have simulation data or access for measurements
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<Putti> do you know any irc channels for reverse engineering firmware of wifi chips (or some related chips)?
<Putti> or some people who to ping for help
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<BenG83> I would start by finding out what MCU is in the RTL chips Putti
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<BenG83> the fw images are usually at least scrambled a bit to make that harder
<Putti> BenG83, that was my idea too
<Putti> I was worried about scrambled fw
<Putti> :/
<Putti> there is uart in the wifi chip I have, so maybe I will find some bug and get into debug mode so I can see how it works step by step
<BenG83> yeah that is also a good idea
<BenG83> the hard part will be finding out the controls for the analog sections
<BenG83> you can find the high level controls probably from looking at what the driver does
<Putti> I have no idea what "control" or "analog section" means. This is gonna be a long journey :o
<BenG83> wel´ll its a RF modem with quite a bit of analog hardware parts that want to be configured
<Putti> ok, now I understand a bit what you meant
<BenG83> with digital chips you can usually input stuff on one end and observe the output on the other hand
<Putti> BenG83, thanks for this information, I will store it somewhere
<Putti> cool
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<BenG83> with an RF chip that is not so straight forward
<Putti> I might need a SDR for analyzing what it sends?
<BenG83> if you have an SDR for 2.4Ghz and 80Mhz bandwith
<BenG83> or a small spectrum analye
<BenG83> *analyzer
<Putti> ok
<BenG83> I mean we have an open source driver
<BenG83> and if you can decode the firmware image
<BenG83> you can work out the registers maybe that control things
<BenG83> but you still need to verify that somehow
<Putti> yeah
<BenG83> also a good idea is to monitor power consumption probably
<BenG83> since changing analog settings like the bias for the different gain stages etc.
<Putti> I think I need to get them some more tools for this project
<BenG83> thre is at least a block diagram in the public datasheets
<BenG83> but not much more information
<Putti> ok
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<KotCzarny> funnily, when i tried to play two things at once second instance was quiet, but apparently progressing. when i quit the first one second one wasnt quiet anymore, but it was playing quite noticeably slower than normal. restarting play made thing go back to normal
<KotCzarny> (a20)
<plaes> audio?
<KotCzarny> yup
<plaes> fun..
<KotCzarny> kernel 4.9
<plaes> btw, I'll post v2 of A20 ccu soon...
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<plaes> need to figure out 4 more clocks :S
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<BenG83> ssvb, in http://linux-sunxi.org/A10_DRAM_Controller_Calibration you wrote the A10/... DRAM controller does not have support autotuning for most parameters, is the controller used in A64 different in that regard?
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<dfranzini> hello
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<dfranzini> has anyone seem or tried the Pandora's Box 3 board?
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<BenG83> dfranzini, if you have one, maybe start filling in info for the wiki
<dfranzini> exactly
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<dfranzini> that's the point
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<dfranzini> can I send a picture here?
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<BenG83> you can link a picture in irc
<dfranzini> I have some pictures and I figured out some of the chips on the board
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<BenG83> try to fill in as much info as possible and upload some pictures to the wiki page
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<BenG83> your own pictures at that ;)
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<dfranzini> I'd rather have better pictures but, well.....
<dfranzini> how can I start a new page on the wiki?
<BenG83> well for the wiki you need to have the rights for the pictures
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<BenG83> what SoC does it use?
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<Putti> dfranzini, search for the page you want and I think it will suggest you to create it if it doesn't exist
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<Putti> Maybe the new device tut has also instructions for that
<BenG83> http://linux-sunxi.org/New_Device_howto has all the instructions
<BenG83> you need to makea wiki account first
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<dfranzini> yeah, I will do that
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<BenG83> brb
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<dfranzini> gosh, so much time since I was on an IRC channel...I can't remember the commands
<dfranzini> ok
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<dfranzini> lets create a wiki page
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<dfranzini> but first, downloading the photos from the crappy smartphone camera
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<dfranzini> also, I'd like to know why I'm not receiving any e-mails from the discussion list
<BenG83> brb
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<dfranzini> help
<dfranzini> ops, sorry people
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<danielt3> much better!
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<Putti> Can anyone share datasheet for RTL8723BS or RTL8703AS ?
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<danielt3> IC or module?
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<BenG83> Putti, we only have a module sheet
<Putti> danielt3, If I got the terms right I think the one I have is just the IC
<BenG83> that would be awesome
<Putti> module sheet could help, the uart pins look like they are connected
<danielt3> weird
<danielt3> yeah, I found that link too
<BenG83> I have been looking for a real datasheet but didnt find one
<Putti> I saw that
<danielt3> you are looking for the IC datasheet
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<Putti> ah, I got the terminology wrong. I was just looking for module level data sheet, but that one BenG83 just linked is not very good datasheet
<Putti> I wonder if anything better is available
<BenG83> it is rare to find any documentation for Realtek things
<Putti> I see
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<danielt3> there is the module, which is a small PCB with minimum circuitry to make the IC and some convenient electrical interface
<danielt3> to make the IC work
<danielt3> but the heart is the IC only
<danielt3> this datasheet is hard to find
<danielt3> well, for my board I really don't know the manufacturer
<danielt3> I only know that the name is Pandora's Box 3
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<danielt3> wierd that someone actually made a driver for the chip, https://github.com/lwfinger but the datasheet seems to be nowhere
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<danielt3> can I just put manufacturer=UNKOWN in the page?
<plaes> you keep it like it is
<plaes> s/you/just
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<Putti> danielt3, hasn't realtek been doing some of the driver code? So I don't think it is weird.
<danielt3> is this actually Realtek's code?
<Putti> it says "Copyright(c) 2007 - 2012 Realtek Corporation"
<BenG83> yeah there are code drops from Realtek usually
<BenG83> but no documentation
<MoeIcenowy> these codes are usually heavily modified by community people ;-)
<MoeIcenowy> the source from Allwinner BSP or NextThingCo is usually more "raw"
<MoeIcenowy> but the modified code by lwfinger and hadess is better ;-)
<BenG83> there is also a newer 8723bs code drop a Ubuntu dev received
<BenG83> but I think it is already merged into hadess tree
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<Putti> link?
<Putti> thanks :)
<MoeIcenowy> Putti: the jwrdegoede tree is only a temporary fork of hadess tree
<Putti> ok
<MoeIcenowy> and now its changes (8703as support) are fully merged back into hadess tree
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<Putti> oh, the RTL8723BS' driver code is ~100k. This might be a bit longer project.
<Putti> 100k lines, I mean
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<BenG83> MoeIcenowy, do you know if the efuses for RTL8723 are documented somewhere?
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<MoeIcenowy> nope...
<MoeIcenowy> how can I know? I'm not Realtek ;-)
<BenG83> I guess it doesnt matter anyways since they are written during production testing I guess
<BenG83> the Android images come with some efuse_map.txt file
<MoeIcenowy> but as I know many RTL8723BS come with pre-burned MAC
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<BenG83> usually the efuses are used to enforce a regulatory domain
<BenG83> channels, tx power etc for a market
<BenG83> so that the device can get FCC certification in US etc...
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<MoeIcenowy> Lichee Pi Zero slightly changed its design...
<BenG83> I really like the idea of being able to hand solder a Linux SoC with DRAM on some board
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<jelle> was this the v3 board?
<jelle> oh yeah
<MoeIcenowy> I have some early samples of it ;-)
<jelle> MoeIcenowy: that's a nice lightweigt board
<MoeIcenowy> but it's only a better MCU ;-)
<jelle> oh they didn't measure consumption with breakout wifi?
<MoeIcenowy> good problem
<MoeIcenowy> P.S. the breakout wifi is ESP8089, because "it's cheap"
<jelle> haha
<MoeIcenowy> I wonder whether my esp8089 mainline driver can still build
<jelle> MoeIcenowy: so serial :) ?
<MoeIcenowy> serial? you mean uart?
<jelle> yes
<plaes> wow.. nice
<MoeIcenowy> the board have a UART tagged as UART0 on the board
<MoeIcenowy> oh not UART0
<MoeIcenowy> but U0 T R
<jelle> I do like all the examples and info, sadly I do not speak mandarin
<jelle> or is it simplified chiense :p
<MoeIcenowy> so... you speak other variants of Chinese? ;-)
<jelle> nope!
<MoeIcenowy> thus you shouldn't mention the variant ;-)
<jelle> ok
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<MoeIcenowy> P.S. in fact usually simplified/traditional Chinese user can understand another variant
<jelle> MoeIcenowy: it even has battery management?!
<MoeIcenowy> jelle: it uses some power bank chip
<jelle> oh that's the 'docker board'
<MoeIcenowy> the V3s originally come with AXP20x
<MoeIcenowy> but if the core board adds the axp, it will be much larger
<plaes> what's the chip used for LVDS?
<jelle> yup
<MoeIcenowy> plaes: I will check
<jelle> oh you can play pokemon with it :)
<MoeIcenowy> I have the RGB2LVDS connector now
<MoeIcenowy> but only the generation of emerald/ruby ;-)
<jelle> who needs more
<jelle> that's where I stopped anyway
<MoeIcenowy> plaes: on the chip "GM8283C 1309_9"
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<MoeIcenowy> and the RGB2VGA DAC is "GM7123C 1620_1", but unforunately it do not have EDID I2C
<plaes> wtf.. it's another SoC
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<MoeIcenowy> but I think on the RGB2LVDS board it's just dumb
<plaes> oh wait.. my bad
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<plaes> nevermind, it is GM8283c...
<MoeIcenowy> the datasheet is in Chinese
<MoeIcenowy> easily accessible on network
<plaes> yeah
<plaes> anyone feeling bored? :)
<plaes> trying to figure out the TVD clock on A20
<MoeIcenowy> P.S. R40 user manual have some info about TVD
<MoeIcenowy> maybe it can also apply on A20
<MoeIcenowy> To be honest at first when I saw the description of GM8283C it's "28 programmable data strobe transmitter", then I cannot ensure whether it is ;-)
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<MoeIcenowy> but then the datasheet says it can translate 28-bit LVTTL signal to 4-lane LVDS signal
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