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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<kadamski> when resubmitting next version of patchset, should I add "Acked-by" to commit messages of patches I didn't change in this version and they were acked in previous one?
<kadamski> what is the usual practice?
<apritzel> kadamski: yes
<kadamski> ok, will do, thanks
<apritzel> that helps people to keep track of what has been agreed upon already
<apritzel> and this is the common practise: "to collect Acked-bys"
<kadamski> that's what I thought but I couldn't find this mentioned in any of guides
<apritzel> feel free to send a patch for the Documentation directory :-P
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<kadamski> that's probably a good idea, not sure where to put it but I'll think about it :)
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<wens> apritzel: too bad ATF is only for armv8
<apritzel> wens: do you want to use it for v7 sunxi?
<apritzel> replacing the U-Boot PSCI implementation?
<wens> apritzel: yeah, means i don't have to write multi-cluster management and CCI400 stuff from scratch :)
<apritzel> wens: yeah, it's quite useful for anything beyond a single cluster
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<wens> iirc l2 cache control is secure only
<wens> i did a linux-based smp series for a80 some time ago
<apritzel> wens: you can copy the interesting parts, though
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<apritzel> wens: it seems to be a custom license, but should be good to copy: https://github.com/ARM-software/arm-trusted-firmware/blob/master/license.md
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<apritzel> and yes: multi-cluster setup can be tricky in the details (especially the cache management)
<apritzel> and it's one of the reasons ATF was made
<apritzel> oh, I just see: it explicitly refers to BSD 3-clause license
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<wens> kind of expect it to not be GPL-like :p
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<ssvb> apritzel: I's quite funny that Allwinner is using the GPL license for their ATF code (while the ATF is BSD licensed) and the "all rights reserved" license for some parts of U-Boot/Kernel (while the U-Boot/Kernel is GPL licensed)
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<KotCzarny> do you think they really care?
<apritzel> ssvb: ATF GPL: do they, really?
<ssvb> have you looked at the sources?
<KotCzarny> some linux people at their workspace smacked gpl on the sources, but the rest doesnt care
<apritzel> ssvb: I fixed the source, even, but haven't looked at the license
<apritzel> ssvb: while I have you here: upstream U-Boot loaded by boot0 hangs for me while relocating, do you have any idea?
<ssvb> apritzel: about the license of Allwinner's ATF bits, here is one part - https://github.com/apritzel/arm-trusted-firmware/blob/allwinner/plat/sun50iw1p1/scp/arisc.c#L7-L19
<ssvb> similar license headers are in the other source files
<ssvb> I have no ideas offhand about the upstream U-Boot hanging when loaded by the boot0
<apritzel> ssvb: nice one, so they added a GPL header in every file that they didn't copy
<apritzel> ssvb: here is a log, btw: https://gist.github.com/apritzel/b537dcc6289d9434cdcd
<apritzel> interestingly it hangs at the very same place on the Remix Mini PC for me
<apritzel> I guess I have to insert UART writes into the relocation assembly code ...
<apritzel> (on the Remix Mini PC it's loaded via U-Boot's SPL via FEL, of course)
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<ssvb> oh, so you get the main U-Boot starting and printing something on the Remix Mini?
<apritzel> yes
<apritzel> so thinking again I doubt the failure is DRAM related
<ssvb> it means that at least the DRAM setup is not completely broken
<ssvb> yep
<apritzel> I was suspecting this before because relocation involves quite some read/writes
<ssvb> btw, is it not Pine64+?
<ssvb> "DRAM size = 512 MB"
<ssvb> still it might be interesting to try reducing the DRAM clock speed
<ssvb> the boot0 blob can be patched and the checksum recalculated
<Deskwizard> if one of you knows and have a sec, id like to know the shorthand of "boot v1.0" vs "boot v2.0
<Deskwizard> I think its to match libnand version, but yeah, id like confirmation if you guys know
<Deskwizard> (which you likely do :P)
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<apritzel> ssvb: this is the 512MB version here on my desk, but I think I saw the same one Pine64+ at home
<ssvb> ok, I just thought that the optimal DRAM settings might be a bit different for Pine and Pine64+
<apritzel> ssvb: > boot0 patched: Oh, interesting, the checksum calculation is the same as for U-Boot SPL, I guess?
<apritzel> ssvb: mmh, but the very same image (including boot0, u-boot, ATF and kernel) worked fine on both boards
<ssvb> I have not tried this but assume that the checksum calculation method should be the same
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<wens> they should work if they have the same timings and other parameters?
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<ssvb> apritzel: "worked fine" is a rather subjective thing
<ssvb> with the Orange Pi PC we had the initial mainline U-Boot code seemingly working fine, but still failing a more tough reliability test - http://permalink.gmane.org/gmane.comp.hardware.netbook.arm.sunxi/20418
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<apritzel> "worked fine" means it booted through the whole stack and gave me a shell prompt, whereas now I see it hang reliably at the very same early location
<ssvb> and it's hard to predict which particular workload is more sensitive to DRAM misconfiguration
<apritzel> yeah, I see, DRAM failures can be very subtle ...
<apritzel> ssvb: interesting read
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<rellla> libv: for doing offscreen rendering with mali/gles i can use a EGL dummy window and initialize the context similar to https://github.com/linux-sunxi/sunxi-mali/blob/master/test/test.c?
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