<pgauret>
tried to change a few sunxi related entries to =y but no improvement
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<g40>
Hello. Would greatly appreciate some help enabling network support in u-boot on an AllWinner H5 board (NanoPi K1+). Modified device tree as here: https://pastebin.com/EaztkUKf. Any thoughts on how to fix?
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<mru>
pgauret: try adding clk_ignore_unused to your kernel command line
<pgauret>
mru thx will try
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<pgauret>
@mru works, thanks a lot!! any idea of why a different .config would now require this additional option?
<pgauret>
(so that I can help fixing this upstream for Alpine)
<mru>
now you should figure out which clock was being erroneously disabled
<mru>
the /sys/kernel/debug/clk/clk_summary list might help with that
<pgauret>
(need to rebuild my test kernel with mmc support so that I can finish booting first :)
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<catphish>
seems hdmi is more complicated than i thought, i seemed to have a perfect working setup, plugged it into a different hdmi sink, and nothing
<catphish>
guess i need to actually negotiate with the display
<mru>
well, you don't have to
<mru>
you just have to use a mode that it supports
<martinayotte>
wens: I didn't try to boot from eMMC, but from SDCard, it was hanging on H5 with ".needs_new_timings = true", just after detecting partitions on the eMMC without mounting them.
<catphish>
mru: well that's what i thought :( but my code that outputs standard 1080p and works on my real tv, is failing on a usb capture card, it detects the signal as 1080p, but doesn't display anything
<catphish>
maybe my mode is subtly wrong
<mru>
or maybe the device is weird
<mru>
plug it into a pc and check which modes it claims to support
<catphish>
well it definitely supports "1080p" but maybe it's not so simple as that
<catphish>
it could be demanding something unusual, works with u-boot so i'll find out what's different :)
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<catphish>
yep, looks like my "1080p" is not the same as theirs
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<catphish>
mru: turns out i'm just stupid and loads of my params for 1080p were out by one, my other monitors must have been more tolerant
<wens>
martinayotte: what board do you have?
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<catphish>
jernej: is there any existing work on writeback? or am i on my own now? :)
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<jernej>
catphish: Of course there is, in BSP linux kernel
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<jernej>
mainline linux just got suitable DRM writeback interface about one or two releases back
<jernej>
afaik nobody worked on writeback yet
<jernej>
that's why I asked if you would do the honor writing Linux driver, given that you plan to work with it anyway :)
<catphish>
well i can certainly try :) or if not that, document how it works
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<catphish>
trying to get my head around how it's routed
<jernej>
I'm reading writeback description in DE2 documentation and it seems pretty well explained
<jernej>
not exactly every detail, but good enough
<jernej>
and it even supports scaling (vertical and horizontal) and CSC
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<catphish>
it does indeed, which is cool, it's not clear what the input ports refer to (mixer0 and mixer1 maybe?)
<jernej>
ah, scratch that, vertical coefficients for filtering seems not to be supported
<catphish>
oh yeah, it doesn't do scaling in the way i want, but that's not important, because i'd rather do the scaling layer in the video output
<jernej>
yeah, that's my understanding from reading documentation
<jernej>
but I suggest you take a look in BSP driver
<catphish>
ah yeah, i did see that one, i wasn't sure what difference it would make, but i've tried setting it because "RT-WB fetch data before DEP port" sounded like what i wanted