rellla 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 - *only registered users can talk*
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<raspo666> is there something/someoneone like a u-boot maintainer ?
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<jernej> MoeIcenowy: I can't linux-next on pineh64 with defconfig
<jernej> do you experience anything similar?
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<montjoie> jernej: symptom ?
<jernej> montjoie: Kernel prints "Starting Linux kernel" on uart and nothing more
<jernej> I'm currently bisecting kernel
<montjoie> I ran next 2 or 3 days ago
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<montjoie> but got random memory problem
<catphish> yay, got FEL working, so much easier!
<catphish> it seems that what FEL actually wants to be provided with is a little more complicated though
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<catphish> u-boot handles it all nicely though :)
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<catphish> thanks whoever pointed me in the right direction of the DE, i am now able to successfully write graphics to the hdmi output of my A20 :)
<JohnDoe_71Rus> On the 4.20 kernel, will it be possible to use multimedia hardware acceleration on all players? A20 hardware
<jernej> montjoie: bisect came up by commit a66d972465d15b1d89281258805eb8b47d66bd36, but if I revert it, it doesn't help
<jernej> wens: Does latest linux-next work for you for H6?
<buZz> JohnDoe_71Rus: there's no hardware acceleration that works in 'all players'
<buZz> no such thing
<buZz> there -is- vdpau support for some codecs though
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<catphish> what is the purpose of the display engine frontend?
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<catphish> ah found a description https://lwn.net/Articles/741730/
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<catphish> looks like DE2 doesn't have sprite support :'(
<catphish> oh well, software rendering will do
<banned-why> I was able to compile the mainline kernel and u-boot using modified hyundai_a7hd to lowered ram and swapped pinout for usb port
<banned-why> however it doesn't seem to be working
<banned-why> I must be missing something
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<banned-why> because the prototype is based on mainline and boots perfectly on my board
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<tautologico> catphish: if you don't mind asking, what are you doing?
<banned-why> just trying to get uboot to output some video through hdmi
<banned-why> the hard way without access to uart0
<catphish> u-boot does a perfectly fine job of it :)
<banned-why> yeah, it should since I make everything correctly
<catphish> tautologico: it's a reasonable question :) i'm trying to write my own bare metal 8-bit style games console (or parts of it) just for fun on a sunxi chip
<catphish> mostly just an exercise in learning a bit about arm soc programming
<catphish> so right now i'm using uboot to boot my own code, which does some basic IO and writes graphics to the HDMI port
<tautologico> catphish: that's interesting, I happen to have similar interests
<tautologico> I'm working more with emulators right now but I'd like to have emulator machines built with SBCs
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<tautologico> booting on a raspberry pi is so much simpler though
<catphish> tautologico: well i've not really had any trouble getting code to boot on my A20
<catphish> (via u-boot)
<catphish> though the pi is probably better documented
<catphish> also, part of the attraction to me was that china puts out some tablets with sunxi chips in, so i was hoping i could run my code on a portable device as well
<tautologico> better documentation all around, and for boot you don't need uboot
<tautologico> NES & SNES classic are also using allwinner hardware
<catphish> yeah, it's pretty complicated to boot a sunxi without uboot, but at least that part is documented, so definitely possible
<catphish> that's cool
<tautologico> I have an Orange Pi One that I'd like to use
<catphish> i'm usin a banana pro (a20)
<catphish> they're all capable anyway, even if you have to do a lot in software
<tautologico> orange pi one is H3
<tautologico> yeah, for most stuff I want to do they're more than enough
<catphish> the tablet i bought is an a64 with is basically h3 i believe
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<tautologico> cool, I might ask you some questions in the future :)
<tautologico> may
<catphish> sure :)
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<catphish> i'm less interested in emulation as building something that could be used to make original content easily, but this is largely just an educational exercise rather than something useful :)
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<kilobyte> even just replacing Nintendo's emulator with any of the about hundred NES emulators people have written over the years would be a large step forward in the "useful" department
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<catphish> well one always run linux and an emulator :)
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<kilobyte> you mean, grab one of Pine64 you have laying around, attach it to a TV (I don't have/use one but relevant parts of family do), buy a $2 joypad, an USB cord extender, and have the kids play games their uncle liked?
<KotCzarny> or grab any h3 based device, install h3droid and have fun there
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<KotCzarny> obviously 1gb+ ram recommended
<kilobyte> yeah, also works out of the box, no tinkering needed. Our kind of fun was done before :)
<kilobyte> dosbox needs a patch for scaling to big enough resolutions (DosBox insists on GL scaling because "software scaling would be too slow")
<KotCzarny> android solves it at the cost of blobs
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<KotCzarny> old kernel, old libs, device connected to the internet in any way is susceptible to remote volnerabilities if cellular provider dont filter incoming packets. and to local vulnerabilities in browserd (any component that uses it)
<KotCzarny> erm, wrong chan, sorry!
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<kilobyte> wrt your mischan: Gemini is an ok replacement, but really suffers from Mediatek being worse than Allwinner was before you folks from this channel started your work
<KotCzarny> yup, i'm deeply in awe of linux-sunxi work
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<miasma> KotCzarny: heh, still I haven't been able to convince people to even try sunxi boards. just few days one guy complained the lack of hw crypto support and dvfs are showstoppers
<miasma> *few days ago
<miasma> they just keep searching for 'wip' columns in the mainline support table to come up with new reasons not to try
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<karlp> heh, I looked at the mainline support table and went, "well, this is certainly ready enough for me now!" and bought two.
<catphish> i'm pretty disapointed by the state of powerful ARM SoCs, mostly in terms of documentation
<ElBarto> catphish: which ones ?
<catphish> all of them
<ElBarto> name a few
<catphish> apart from the allwinner A series, i can't, and that is the first part of the problem
<KotCzarny> miasma: they are specific and have specific uses. i'm currently having some fun with espressobin (i miss a lot of features of bpi-r1 tho..)
<ElBarto> catphish: so you're only disapointed by allwinner docs then ?
<miasma> apparently dvfs is available already in armbian and the megous kernel
<catphish> ElBarto: definitely that, yes, and so far that's the only one i'm aware of that has a decent core and any documentation at all, maybe there are some i'm just not aware of, but whenever i ask peolpe about it, i'm generally told that the market just doesn't welcome hobbyists
<catphish> i'd love to be proven wrong about this
<karlp> pleny of docs for imx stuff, just costs a lot more :)
<ElBarto> catphish: what part of the docs ? because with just the docs I was able to do a lot of thing in FreeBSD
<catphish> i spend a lot of time working with STM32s, they have arm cores, and they're amazing, the documentation holds your hand through pretty much whatever you want to do
<catphish> but chips with faster CPUs and displays, they just don't target that market, the allwinner chips seem to have little more than a list of registers, and even that seems to be distributed without their permission
<catphish> karlp: hadn't seem i.MX, they look interesting, wonder if ST do anything
<catphish> i'll admit, i've done very little research, but it seem to me that if i buy a device (like a tablet pc) with an arm processor, i have pretty much zero chance of programming it, compared to an intel compatible device
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<beeble> catphish: stm32mp but that's only a a7 core. if you want better documentation go with another chip vendor. with public docs nxp and ti for western chips and rockchip for east
<beeble> *stm32mp1
<catphish> beeble: i'm just looking at those NXP chips (i.MX 8), they seem to fit the bill much better
<beeble> just expect to pay for the docs with higher device prices
<catphish> that's a shame, but makes sense i guess
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<catphish> perhaps ST will get involved, their arm stuff is magical, stm32mp sounds nice, but there's probably a way to go between an STM32 and something with large dram support and high resolution display options / gpu
<catphish> will keep an eye out though :)
<beeble> probably not as they quit their efforts in that market a few years ago
<beeble> (see st SPEAr for a history lesson)
<catphish> shame
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<catphish> hello world: https://i.imgur.com/3fUYVIr.png :)
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