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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<\x> my little server cant be this cuuute
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<\x> anyway people
<\x> i noticed that orange pi has an spi chip on it
<\x> i have an external flasher
<\x> what can i do with this
<\x> i did read the chip, its empty.
<\x> hmmmmmmm
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<\x> is this like a bios for these boards or what
<\x> im used to work with spi as i corebooted some thinkpads already
<\x> hmmm interesting
<\x> its only 2MB tho
<anarsoul> that's plenty for u-boot :)
<\x> i mean isnt this useful for like
<\x> putting a really teensy kernel on it then itll kexec another kernel found on a usb drive or something?
<pmpp> or netboot
<\x> now i get why the R1 has a 16MB chip on it
<\x> you can literally run openwrt or something from the chip
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<\x> this gets interesting
<anarsoul> \x: use u-boot.
<\x> there are dip8 sockets
<anarsoul> it can boot from usb
<\x> where do i see that
<anarsoul> and from nfs
<\x> can i like flash it directly on the chip?
<\x> welp, i guess i need to read more about this
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<KotCzarny> \x: you can boot armbian from sdcard then write to spi chip without any programmer
<\x> yeah, but does that help?
<\x> i mean sure if i can have faster boot times
<KotCzarny> its useful if you want netboot or boot from usb attached sata disk
<\x> i dont even know how uboot works lol
<KotCzarny> and to have sdcard slot free
<\x> but sure i want to boot from usb
<KotCzarny> think of uboot as a grub for arm
<\x> any flashables?
<KotCzarny> define flashables
<\x> i have a flasher here, an external flasher (ch341a) so it wont be a problem if i brick here or wat
<\x> KotCzarny: flashable spi image
<\x> brick it*
<KotCzarny> allwinner socs are unbrickable
<KotCzarny> sdcard slot has highest boot priority
<\x> yeah its not a problem
<\x> oh
<KotCzarny> and you can fel-boot the board using another computer and usb cable
<KotCzarny> (in case you dont have any sdcard)
<KotCzarny> ofc you can also just use clipon programmer on the spi chip, but sdcard/fel is just more convenient
<\x> i get that uboot is like a bootloader/bios for these boards
<KotCzarny> yes
<\x> the thing is, im still looking for resources on how to build one just so that i can make the spi image boot my usb drive
<KotCzarny> unless you want to run some baremetal binary
<\x> i want to run armbian on a large usb drive
<KotCzarny> have you seen the wiki?
<\x> not yet
<\x> lol
<\x> im currently reading mizy
<\x> the one linked here by someone earlier
<KotCzarny> this is your next reading then
<\x> >On supported Allwinner SoCs it is possible to boot over USB OTG. This requires only minimal changes compared to the build steps in the manual build howto, and these changes are explained on this wiki page.
<\x> oh
<\x> i cant boot on the /normal/ usb ports of it?
<\x> i have the orange pi zero
<KotCzarny> no, thats why you need uboot
<\x> ah nice
<\x> now we are on the same paragraph
<KotCzarny> to chainload kernel/initrd(optional)
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<\x> maaan
<\x> im like really new to this stuff
<KotCzarny> yes, have fun
<KotCzarny> :)
<KotCzarny> and thank linux-sunxi crowd for making it all possible with latest uboot/kernel
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<\x> ye KotCzarny
<\x> my boards just came yesterday
<\x> uwu
<KotCzarny> treat them with heatsinks at least
<\x> later
<\x> but yeah i will
<\x> im running the h2 as a tiny server for now
<\x> im replacing my x86 server with this
<\x> tho i think i should've use the h5 board cuz of that gigabit ethernet
<\x> oh well
<KotCzarny> and a53 cores with 10x faster aes crypto
<KotCzarny> :P
<KotCzarny> and 2.5x faster neon
<\x> h5 has hardware aes?
<KotCzarny> no, a53 cpu cores used in h5 have it
<\x> ill look laterer
<KotCzarny> i've heard rpi3 also has a53, but without aes accel
<\x> i only just booted it yesterday just to see if it works
<\x> KotCzarny: yep, it can run aarch64
<\x> its just that pi is an open source meme
<\x> like "hurr durr im opensource"
<KotCzarny> rpi or opi?
<\x> rpi
<KotCzarny> lies
<\x> its not really opensource
<\x> yep
<\x> you can run aarch64 on it tho
<KotCzarny> it runs closed source os and your linux runs as a guest of it
<\x> but only for headless use
<KotCzarny> :P
<\x> yep
<\x> atleast arch has no xorg to break in that
<\x> lol
<KotCzarny> you can compare them later in performance
<KotCzarny> just keep in mind h2/h3 is 32bit
<\x> yeah
<\x> armv7l
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<\x> KotCzarny: heres what i said about that spi flasher
<\x> featuring the shadiest 3.3V source ever
<KotCzarny> could be worse
<\x> b-b-b-but corebooted thinkpads hey
<\x> whats not to like
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<karlp> wens: using the same dtb for both, is the alias just "ethernet0" ?
<karlp> you can also use sunxi-fel to write to the spi flash directly.
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<BenG83> how much does THS calibration usually influence the sensor value? is it more like 1% or 10%?
<BenG83> I guess it varies with wafer batches
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<anarsoul> BenG83: my guess is ~5%, but I'm not sure :)
<anarsoul> 10% is too much
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