narmstrong changed the topic of #linux-amlogic to: Amlogic mainline kernel development discussion - our wiki http://linux-meson.com/ - ml linux-amlogic@lists.infradead.org - official channel moved from Freenode - publicly logged on https://libera.irclog.whitequark.org/linux-amlogic
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<wens> wonder who's throwing in money for the RK3588 upstreaming... Rockchip themselves?
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<hexdump0815> wens: maybe wrong channel? :)
<chewitt> if you compared who's in here vs. #linux-rockchip you'll prob. find 2/3 overlap :)
<chewitt> we should fork #linux-theusualsuspects ..
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<wens> hexdump0815: it was a comment stemming from S928X upstream :p
<wens> chewitt: that only says who's doing the work, not who's funding it :p
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<chewitt> that's always a more complex conversation
<chewitt> although in the Amlogic space the general lack of funded work prob. makes it a short conversation
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* chewitt points fingers at @lvrp16
<lvrp16> only certain people care about upstream
<lvrp16> I try my best but there are limits
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<chewitt> to be clear .. ^ I'm pointing fingers at one of the few who does care ^
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<f_> I'm investigating on that weird thing with lepotato bl2.bin
<f_> and I see something
<f_> In the aarch64 objdump output I see many writes to *_el3
<f_> Well
<f_> MOVs
<f_> While in the P212 bl2.bin I see no mention of *_el3
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<f_> git branch: master, thelinuxmacbook:fip-unmod » file lepotato/bl2.bin
<f_> lepotato/bl2.bin: Atari DEGAS Elite bitmap 640 x 400 x 2, color palette 0014 64a6 00d9 0000 0014 ...
<f_> I sure love using Atari bitmap files to initialise my SBC
<f_> Jokes aside :P tried to run `file` on both and:
<f_> git branch: master, thelinuxmacbook:fip-unmod » file p212/bl2.bin
<f_> p212/bl2.bin: data
<f_> So `file` won't be of much use.
<f_> Aha!
<f_> khadas-vim/bl2.bin is as weird as lepotato/bl2.bin
<f_> khadas-vim2/bl2.bin doesn't
<f_> jethub-j80/bl2.bin: same weirdness
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<f_> tartiflette-s905d/bl2.bin: same weirdness
<chewitt> the difference being that vim2 is a different soc type (gxm) whereas all the others you're listing are gxl
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<f_> chewitt: Except these binaries the rest look just like p212/bl2.bin
<f_> beelink-gt1/bl2.bin for example looks fine
<f_> You got the expected `b 0x8` and the rest of bl2_entrypoint
<f_> at the start
<f_> p212 is gxl right?
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<f_> git branch: master, thelinuxmacbook:fip-unmod » strings lafrite/bl2.bin | grep Built
<f_> Built : 17:22:36, Apr 13 2019. gxl g5b4ffbb - jenkins@walle02-sh
<f_> Built : 11:58:42, May 27 2017.
<f_> git branch: master, thelinuxmacbook:fip-unmod » strings p212/bl2.bin | grep Built
<f_> Hmm
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<chewitt> p212 sources came from the prebuilts here: https://github.com/BayLibre/u-boot/branches
<chewitt> along with p200/p201/q200 etc. .. all the eval boards
<chewitt> most of the other content in the LE repo came from vendor u-boot sources that have been privately shared with me
<chewitt> plus a couple of drive-by submissions in recent times
<chewitt> but the bl2.bin files are all precompiled blobs so if there's random differences they probably originate with Amlogic themselves
<f_> lepotato's bl2.bin is in Libre Computer's fork of Amlogic's fork of U-Boot though, which is publicly available
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<f_> so weird
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<f_> so that is part of bl2_entrypoint
<f_> p212/bl2.bin
<f_> https://bin.vitali64.duckdns.org/64d252cb and this is what I get from lafrite/bl2.bin
<f_> You don't even need to know assembly to see that they're completly different
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<f_> I'll try the p212 bl2.bin sometime.
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<f_> (on lafrite or lepotato)
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<f_> But really did something change in BL2 between 2017 and 2019?
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<f_> Weirdly enough it seems like the code Ghidra found when using the lafrite/lepotato binary and when setting the language to ARMv7-default....
<f_> .....looks like it's uhhhhh
<f_> Let's say...valid somehow?
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<f_> Very wild guess :P I just found serial_puts and serial_putc
<f_> but uhhh yeah?
<f_> weird guesses welcome I guess :P
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<f_> Will have to go for a few days.
* f_ waves.
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