<camh>
is there anyone working on mainlining the orange pi plus / H3 / sun8iw7p1 ?
<camh>
I've got a few and I wasn't happy to find "open source" meant a 4 year old boot loader and kernel
<camh>
so I'm looking to forward port the published code to mainline
<premoboss>
camh, the qeustion is: do you really need features inside new kernel?
<camh>
since I'm up-to-date on my other boxes/boards, it would be greatly preferable to be somewhat more recent than 3.4
<RSpliet>
premoboss: the answer is always a resounding yes
<premoboss>
RSpliet, it is opinable.
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<RSpliet>
premoboss: no, there is no reason to stick with an old kernel. It's insecure, slow (yes, a lot of arch tweaks have been made) and bug-prone
<camh>
I'm building a mongrel cluster just for fun and would like the most recent containterization features
<premoboss>
if a soft+hard configuration feet my needs ( and there is not lack on the soft as exploit, backdoor, etc) i dont see why i whould uptrade: if it works, don't touch it :-)
<camh>
premoboss: this is a tinkering project for me, so it's more about touching it :)
<camh>
I just didn't expect to be this sort of the starting line. I didn't do enough research first.
<wigyori>
premoboss: this 'if it works dont touch it' is one of the reasons for the large-scale hacking that hits your 8pm news usually
<camh>
so now I do the work
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<wens>
camh: vishnu (not here atm) was working on h3
<camh>
wens: do you know if there is a git repo with dev branches for it?
<wens>
not that I'm aware of
<camh>
I found a 3 month old patch set on the mailing list, but no followup
<RSpliet>
premoboss: from the top of my head 3.14 landed a 10x performance improvement on reader-writer semaphores by using atomics properly instead of expensive locks to emulate them
<premoboss>
wigyori, i also wrote "if there si not lack on software". of couse paching od code is alwais a must. wht i mean i tat i dont feel te neet to "redo the whell" every 3 months..
<wens>
you'll probably have to rebase them yourself
<camh>
anyway, I'm starting with u-boot, comparing the diffs between A23/A33 vs H3 and trying to figure out how that will apply to mainline
<RSpliet>
more recently the spinlock implementation was tweaked to be 20% faster and better in guaranteeing progress
<RSpliet>
there's lots of hidden benefits in new kernels, hence the whole upstreaming movement that Linaro is trying to accomplish :-)
<RSpliet>
with a proper upstreaming effort from the SoC vendor (or a community like #linux-sunxi), there's no "redo the whell" every three months.
<jemk>
camh: but its only uart, and mmc can be reused from older socs
<camh>
just looking for a starting point right now, so that's fine
<RSpliet>
camh: great stuff, thanks for diving into this
<wens>
jemk: are you working on it?
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<jemk>
wens: haven't had time the last months, but hope to continue slowly next weeks
<pirea>
hi jemk
<pirea>
in what state is libvdpau-sunxi?
<pirea>
my cubieboard 1 is still slow when i play 1080p videos with osd
<pirea>
or without
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<wigyori>
wens: thanks for the musb answer
<jemk>
pirea: rellla has done some work on the display part of libvdpau-sunxi lately
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<rellla>
pirea: libvdpau should work almost fine now, but i still have some things to fix :p
<rellla>
much rebasing causes much fixing. at least, when i do it ;)
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<oliv3r>
RSpliet: we have noticed that sometimes u-boot fails to mount the ubi partition, and ubi cannot recover the partition (linux appearantly may be able to do so), this seems to happen on unclean shutdown (but can't confirm that yet). does this sound familiar at all?
<spuelrich>
Hi.
<oliv3r>
mnemoc: UPDATED! Let the horror find us! :)
<spuelrich>
Does the BananaPi work with an adapter HDMI->DisplayPort?
<RSpliet>
oliv3r: I haven't observed this behaviour, but from what I recall the UBI driver in U-boot is an old copy-paste from Linux
<RSpliet>
it could simply be that the recovery mechanism in Linux has advanced beyond what U-Boot can currently do... has anyone attempted a sync-up of UBI code recently?
<oliv3r>
RSpliet: i have locally, but we aren't using those u-boots yet
<oliv3r>
but that's a good thing to know
<RSpliet>
(or... is my memory serving me wrong and is the codebase in fact disjoint)
<RSpliet>
well, that's the first thing I'd try
<oliv3r>
okay, fair nuff
<oliv3r>
but u-boot does have recovery mechanisms?
<RSpliet>
I have no idea tbh. But if the Linux kernel can recover it, there's a good chance U-boot should be able to do so too
<RSpliet>
(then again, random bits have been ifdef'd away, I can't make any promises without looking at the code... for which I'm a little low on time right now)
<RSpliet>
furthermore, if it's just single bits falling over, I think bbrezillon's NAND driver should be able to fix that up based on the ECC settings
<RSpliet>
I don't think I removed any code related to ECC recovery with hacking that driver to fit into U-Boot
<RSpliet>
just removed per-partition settings with the intent to revise it when that has been properly resolved in the MTD framework in Linux
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<oliv3r>
RSpliet: okay, fair nuff
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<Dodger78>
@wens , when will usb be supported on cubieboard 4 ?
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<wens>
Dodger78: i posted patches, but there are a few issues
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<Dodger78>
@wens , can i get a usb ethernet adapter to work ? then the cubieboard 4 would get "usable" i dont need anything more, just network connectivity
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