Turl changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi
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<joeyh> I've read about installing u-boot on SD card boot sector for sunxi devices.. What typically starts that? Is there a 1st stage bootloader in flash?
<joeyh> I had a SD card where I forgot to do that, and a cubietruck still booted somehow, so I suppose perhaps it has u-boot in flash
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* vagrantc waves to joeyh
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<kilobyte> joeyh: the real boot sector is not sector 0 (unlike what we're used to from x86), it's in a fixed place before the first partition
<kilobyte> joeyh: ROM code searches for the first bootable device, usually SD card then MMC then SATA then FEL that has something which looks like a bootloader
<pmpp> yeag on sdcard in a zone which is also used for gpt partition tables ...
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<ullbeking> hey all, i'm sure many of you have seen this by now: http://cluster.bitscope.com/solutions
<ullbeking> i wonder what the chances are of building something similar with orange pi
<willmore> No reason you couldn't .
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<lvrp16> ullbeking: i think it's more cost effective to buy an amd threadripper and just run vms to test
<ullbeking> lvrp16: i think you're missing the point
<ullbeking> willmore: indeed
<lvrp16> 2 machines will perform faster than that cluster
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<ullbeking> willmore: this is what i want to build: http://climbers.net/sbc/orange-pi-plus-2e-cluster/
<ullbeking> isn't it cool?
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<willmore> But why? ;)
<willmore> listen to lvrp16 get a threadripper or a low end Epyc.
<ullbeking> lol
<lvrp16> $50000 is a lot of money to waste for being cool lol
<ullbeking> i have some mild interest in getting an r3 and a corresponding server-grade mini-itx board
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<ullbeking> willmore: i think we're being trolled
<ullbeking> (poorly)
<ullbeking> some time ago i saw a somebody post a picture of three sd cards, either in this channel, or somewhere, i can't remeber..
<ullbeking> which are the good ones?
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<DonkeyHotei> what does this mean? [ 7.682887] i2c i2c-0: mv64xxx_i2c_fsm: Ctlr Error -- state: 0x6, status: 0x0, addr: 0x40, flags: 0x0
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<smaeul> DonkeyHotei: status 0x00: Bus error
<smaeul> probably means an issue at the physical layer
<DonkeyHotei> hmm
<DonkeyHotei> i probably specified the touchscreen wrong in the dts somehow
<DonkeyHotei> do all a33 tablets use a marvell host bridge?
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<smaeul> afaik all sunxi SoCs use the same i2c controller
<ullbeking> does anybody know where i can find data sheet and docs on +2e?
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<ullbeking> smaeul: perfect
<ullbeking> ty
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<KotCzarny> ullbeking: samsung evo+/pro+ are quite nice
<KotCzarny> speedy and not bad random 4k r/w iops
<KotCzarny> you can also just get A1/A2 class cards
<ullbeking> KotCzarny: nice one, ty. i just picked up a couple of these: https://www.amazon.co.uk/dp/B06XFSZGCC/
<ullbeking> i think i'm going to stock up on a few +2e boards
<KotCzarny> :)
<KotCzarny> if you think about farm, opi0+2 is nice too
<ullbeking> they seem to be everybody's favorite, and i can't wait to try it
<ullbeking> oh really?!
<ullbeking> no overheating issues?
<KotCzarny> they are a bit hotter (small board) but didnt notice any oddities
<ullbeking> that 0rev1.4 made me lose trust in xunlong
<KotCzarny> 0+2, not 0
<ullbeking> sure
<ullbeking> i've had this discussion before several times, but has the general consensus come around to the opinion that powering any of these boards using usb or usb-otg is not very good
<ullbeking> ?
<KotCzarny> tbh i didnt apply big load to my board, but works nicely as a audio player near my hifi box
<ullbeking> if i have no td flash, how far will i get?
<KotCzarny> um, opi0+2 has 8gb emmc
<KotCzarny> get one for testing, you can even choose between h3 and h5
<ullbeking> ok, so the situation is this
<ullbeking> my order from ali *finally* arrived
<KotCzarny> h5 might be better for your use case
<ullbeking> i have the following now:
<KotCzarny> fill your linux-sunxi wiki user page
<KotCzarny> then just paste the link
<ullbeking> what's that?
<ullbeking> just a regular wiki page for linux-sunxi?
<KotCzarny> this one is mine
<ullbeking> hahahaa
<ullbeking> i <3 this community
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<ullbeking> i was trying to explain why i went for opi rather than rpi to a colleague today
<ullbeking> ok, filling out my zoo now,brb
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<ullbeking> KotCzarny: where do i create the page and where do i link to it from?
<KotCzarny> but someone has to add you to the 'people' group first
<KotCzarny> you can still edit 'discussion' page for now
<KotCzarny> and copy it to user page later
<ullbeking> this is my first time using mediawiki from such a raw state
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<ullbeking> 07:32 <KotCzarny> h5 might be better for your use case
<ullbeking> why do you think so?
<KotCzarny> it's 64 bit and also 2.5x faster neon unit
<KotCzarny> and i assume you think about using boards for some compilation/number crunching rather than media players, right?
<ullbeking> erm, actually, no...
<ullbeking> my initiail interest came because i wanted to use them to flash spi chips such as bioses
<ullbeking> i came here via libreboot and coreboot
<ullbeking> but now that i see what they can do, i'm more interested in experimenting with other uses
<KotCzarny> but for that you only need one tiny board which wont overheat doing such light work
<ullbeking> sure, except for two things...
<ullbeking> my soldering skills are bad and i was sure to burn out something on the board
<ullbeking> i knew i'd catch the bug anyway
<ullbeking> i'm building a homelab now
<ullbeking> it started out just wanting a corebooted laptop, it then went to trying to design a nas, now it's a full blown home lab
<ullbeking> it makes sense for me
<ullbeking> ah questions
<ullbeking> do any of the allwinner chips do virtualization/
<ullbeking> ?
<KotCzarny> i think yes
<ullbeking> cool
<KotCzarny> as in they have virtualization extensions in cores
<KotCzarny> havent used it personally though
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<montjoie> virtualization without RAM is useless
<KotCzarny> opi+2e has 2gb
<montjoie> wow one VM with 1G RAM, useless
<KotCzarny> or 3 with 512M
<KotCzarny> all depends what will be inside
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<ullbeking> yes
<ullbeking> Or use docker
<ullbeking> anyway, ta da!
<ullbeking> can you link me in, KotCzarny ?
<ullbeking> unfortunately i only have one usb-to-otg cable
<KotCzarny> link-in ?
<KotCzarny> ahm, that would require someone with more permissions in the wiki. rellla ? nitehawk?
<KotCzarny> will make internal link
<KotCzarny> and note about syntax: [[Xunlong_Orange_Pi_Plus_2E | Orange Pi Plus 2E]]
<KotCzarny> text after | is used as a link text
<ullbeking> ofc
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<NiteHawk> KotCzarny, ullbeking: done :)
<KotCzarny> :)
<ullbeking> thank you NiteHawk :-)
<ullbeking> wow, i feel part of something now
<KotCzarny> you are people now
<ullbeking> now what, jsut do a big copy-paste from the discussion to the actual page?
<KotCzarny> copy paste into user page and ask to delete talk page?
<ullbeking> why do i need to ask to delete talk page?
<KotCzarny> why keep it?
<ullbeking> can't i delete it?
<ullbeking> can't i delete it?
<KotCzarny> if you can, do it then
<ullbeking> NiteHawk: anything special i need to do to delete this: https://linux-sunxi.org/User_talk:Ullbeking now that i've got a real people page :-)
<NiteHawk> ullbeking: IIRC you can only blank it, not delete - if you wish, I can remove it for you
<ullbeking> yes please!
<KotCzarny> yeah, then i remembered right
<NiteHawk> There you go.
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<ullbeking> ty
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<ullbeking> ok, so first steps are to get my pc2 working
<ullbeking> i'm trusting this cheezy usb-to-4mm-jack cable will provide enough power
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<igraltist> hi
<igraltist> on latest 4.14 i get: https://paste.debian.net/996402/
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<KotCzarny> little tool to access serial port from cygwin (screen seems to be having troubles on windoze)
<kilobyte> perhaps tio would compile on cygwin? It's helluva more convenient than screen.
<KotCzarny> kilobyte: just check that little beast
<kilobyte> yeah, it looks _too_ simple though
<KotCzarny> might. but works 100% as advertised
<KotCzarny> hint: ~h will print help, ~. will quit
<KotCzarny> it also has macros (which will be useful)
<kilobyte> ok, either tool would work
<KotCzarny> screen on cygwin doesn't work though
<KotCzarny> it tries to connect to serial port but blocks
<aalm> wens, here?
<wens> aalm: yeah?
<aalm> have you compared ie. lpc23_emac to sun4i_emac? :)
<aalm> would like to hear what you think about their similarities.
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<wens> what's that?
<wens> I'm familiar with neither of them
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<aalm> sorry, got busy. something here tho: https://pastebin.com/XCrsGPw3 not the most obvious stuff, but links/paths for those files too :)
<aalm> bbl
<KotCzarny> aalm: montjoie is local emac master
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<obbardc> hey guys, finally kinda got a kernel to boot on H5, had to lower dram and cpu speed from u-boot
<obbardc> there are patches, but they're not in mainline.
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<obbardc> although now u-boot is taking an ice age to read kernel to memory from sd card
<obbardc> also,
<obbardc> [ 1.976239] VFS: Cannot open root device "mmcblk0p1" or unknown-block(0,0): error -6
<obbardc> [ 2.007512] Hardware name: Xunlong Orange Pi PC 2 (DT)
<obbardc> [ 1.992370] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
<obbardc> [ 1.983998] Please append a correct "root=" boot option; here are the available partitions:
<obbardc> [ 2.000639] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.14.0-g0192f1752 #1
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<igraltist> obbardc: which kernel are you using?
<obbardc> mainline, i am trying again with a rootdelay
<obbardc> something like: console=ttyS0,115200 noinitrd root=/dev/mmcblk0p1 rootfstype=ext4 rw rootdelay=5
<igraltist> so 4.14.0?
<obbardc> correct
<igraltist> i use this from git and something is not working with mmc
<igraltist> kernelpanic or waiting for mmc
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<obbardc> damn, at least it's not just me getting kernel panic when booting from sd..!
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<obbardc> going to revert to sunxi-next as that is a bit older and try again.
<igraltist> also i try update the u-boot
<willmore> obbardc, what speeds did you end up with?
<obbardc> willmore, 816 MHz
<obbardc> kernel was not bootable at full speed
<obbardc> think the idea is to let it boot kernel at low speed, set PMIC to a higher core voltage then set cpu freq to full.
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<obbardc> yeah, sunxi-next (4.14.0-rc7-g2642cc08) finds the sd partition igraltist
<obbardc> but also moans cuz i have no initrd
<obbardc> i am closer, but that is as far as i am going tonight
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