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<agin_>
One strange thing with Composite on uBoot is that if I change the UI0 Enable settings, the output is still there, but it should blank
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<agin_>
ie. Address 0x01203000
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<agin_>
or 0x1103000
<agin_>
for the DE2.0, RT Mixer 0
<agin_>
oops, my bad it does!
<dan0_0>
I'm curious if I can use the GPIO on an OrangePi 2e to get a couple extra serial ports, so I can connect some serial devices to the GPIO instead of using USB to Serial adapters
<dan0_0>
iirc the Coin Dispenser only uses 3 or 4 pins in its serial connector, and I think the scale/scanner is similar
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<agin_>
how many serial ports do you need?
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<agin_>
yes changing 0x1103000 does not affect the output
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<agin_>
its like changes to the DE UI need some write bit or latching?
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<dan0_0>
agraf: 2 or 3 would be nice, the more the merrier though
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<willmore>
Interesting, the PC2 shows very *very* similar clock for clock performance in cpuminer compared to an ODROID C2. That's unexpected. That benchmark normally is highly effected by memory BW. I think I need to run ssvb's tinymembench.
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<mirceac>
The root of trust is usually a public key (ROTPK) that has been burnt in the platform and cannot be modified.
<mirceac>
Moe: is there a place from where an old man can start ;) ?
<mirceac>
that is not like from scratch !!!
<walk>
mirceac: thank you very much :)
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<mirceac>
you're welcome
<MoeIcenowy>
mirceac: you can try based on current a83 work
<mirceac>
mmmkay, where do I find souch work :) ?
<MoeIcenowy>
in current linux kernel tree
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<mirceac>
so from scratch it is :(, I was thinking that maybe someone put together a build system, but no armbian, no bananian :((
<mirceac>
and the vendor provided stuff is a joke
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<walk>
mirceac : another question, so if my understanding is correct, The CoT garanties that the image you are running is not tampered right? but it does not garanty that the image being run is yours and no one else's. So my question is how do you garanty that?
<montjoie>
mirceac: wens has an a83t tree
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<tkaiser>
mirceac: IgorPec added BPi M3 to Armbian build system (you have to enable 'show WiP boards'): https://github.com/igorpecovnik/lib/blob/master/config/boards/bananapim3.wip (uses wens' stuff but no idea what works, BPi M3 collects dust here since being a total design fail, just check linux-sunxi wiki)
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<tkaiser>
willmore: Let's keep this channel free from Armbian issues (use forum instead) but just to get the idea: The small IoT boards are somewhat special since they all use the wrong DC-IN connector (prone to all sorts of powering problems people are usually not aware of) and single bank DRAM config (prone to high board temperatures when clocked at the usual 624 MHz). Armbian considers NanoPi NEO, Air and OPi Zero as IoT devices
<tkaiser>
and the settings reflect that (low DRAM and cpufreq default values). All these boards could run happily at up to 1200 MHz cpufreq with appropriate heat dissipation except of NanoPi NEO PCB rev 1.0 (deadlocks when used *with* FriendlyARM's heatsink, without throttling kicks in and prevents that).
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<mirceac>
ooooooh, hello tkaiser, my hero :) !!!!
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<mirceac>
your threads on the forums are inspiring, even that for BPI M3 a bit depressing
<mirceac>
On the other side, for OPi Zero they were most useful
<mirceac>
capable little thingie, too bad about the crappy embedded Wi-Fi but the USB extention board and a 5EUR adapter solved this
<mirceac>
also thanks for the pointers about the BPI M3, I guess I'll give it a try
<mirceac>
walk: the intial part of this chain of trust is to make sure that the loaders are not tameperd
<mirceac>
walk: afterwards you can encrypt your image with the chip unique key and if nobody has it already than this is ti.
<mirceac>
ok, thanks a lot sunxi mods for letting me use this channel and noise it with some armbian stuff, I'll bee keeping watch on your wiki for good news and even maye contributing something.
<tkaiser>
mirceac: Please don't expect too much, it's called WIP for a reason and is just the try to integrate wens' work in the build system. So better check mainline status matrix first what to expect with A83T and this device now: http://linux-sunxi.org/Linux_mainlining_effort
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<mirceac>
tkaiser: VERY depressing reading :(
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<tkaiser>
mirceac: Why? Wens is awesome and still works on the A83T/H8 devices. So sometimes... You might also want to check Jared McNeill's work (FreeBSD) to do something useful with this board.
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<mirceac>
no, no, the work done is really appreciated, the issue is that this SoC will prolly never be supported properly, I've hear that has been obsoleted alredy :(
<tkaiser>
mirceac: Hmm... A31/A31s have been discontinued at the time SinoVoip released BPi M2. And wens reported the opposite regarding A83T some time ago after talking with Foxconn's BPi PM. But we'll see. I fail to understand Allwinner's business strategy (but don't care that much too and prefer to not speculate about stuff like that ;) )
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<walk>
mirceac : yea i was thinking of this. thank you
<wens>
a83t is mostly stuck on no proper clock driver, which is the basis for pretty much anything
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<tkaiser>
wens: Is anyone working on this at all (heard nothing from vishnup for long time)?
<wens>
tkaiser: not that i know of, but since the a83 clocks are very similar to a80, i will take care of it after the sun9i stuff is merged
<wens>
i also have some usb patches, which have been sitting there for a long time
<MoeIcenowy>
tkaiser: I've heared people from Sinovoip told me that BPi M2 is a transitional product
<MoeIcenowy>
only being made to fill the quad-core market ;-)
<wens>
transition to what?
<MoeIcenowy>
from current view, to M2+ and M2U ;-)
<plaes>
phew.. cleaned most of the stale patchsets on mainlining effort page
<mirceac>
what news ?
<MoeIcenowy>
P.S. they told me that one new BPi features R16 will be produced after Chinese New Year
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<wens>
hmm
<wens>
R16 is ARM64, no?
<MoeIcenowy>
R16 is A33.
<wens>
i must have read a bad intro
<mirceac>
didn't they produce a home router something with an Rx chip ?
<MoeIcenowy>
you can just read sun8i-r16-parrot.dts ;-)
<plaes>
well, good thing with those newer "SoC"'s is that linux-sunxi can actually keep pace with mainline support :)
<montjoie>
plaes: and thanks for using good wiki commit log, I hate people that change something with message "status matrix":)
<plaes>
montjoie: btw, you have two entries there - sunxi-ss and hwrng
<plaes>
anything I could update there?
<montjoie>
I will update hwrng
<plaes>
oh wait.. ac200, sun8i emac, hw spinlock
<montjoie>
probably hwrng will never come to mainline
<montjoie>
plaes: I will clean
<plaes>
thanks :)
<tkaiser>
wens: BPi R16: https://forum.armbian.com/index.php/topic/3251-bpi-r16/ -- their ARM64 product is BPi M64 which receives zero linux support by them (they use Pine64 stuff here and certain things do not work, only the Android they got from Allwinner works here)
<wens>
tkaiser: thanks
<wens>
oh i remember, it was some product description on taobao i was looking at yesterday :/
<wens>
sunxi-next branch re-done
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<vinimac>
hi. How can I put a dts entry for cs-gpio(SPI1) for sunxi? cs-gpios = <&pio 16 16>,<0>; /* PI16 */
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<plaes>
vinimac: fsl,spi-num-chipselects is freescale-specific
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<vinimac>
plaes: how about cs-gpios?
<beeble>
cs-gpios = <&gpio 8 16>; is not working?
<beeble>
and you may have to setup an additional pinctrl to configure it as gpio output
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<cptG>
Question about simplefb: scanning through the sources of linux and u-boot, it looks like the virtual-y resolution always matches the physical resolution, making "idiomatic" page-flipping not work as expected in linux framebuffer. Is there a way around that?
<cptG>
it looks like u-boot can not be fooled to accept twice the y-resolution, since it directly uses that number to initialize the hardware, so a factor of 2 would need to be added in both u-boot HW init and in kernel's simplefb init, which is A) not really what I'd like to spend by saturday evening doing and B) there are probably other good reasons why this is not done I guess...
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<cptG>
...and C): probably a not-even-working-as-expected, ugly hack :)
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<jernej>
cptG: You can make such correction, but it won't help you. You need to know something about HW to switch buffers, but the point of simplefb is that you don't know anything about it
<cptG>
jernej: yeah, I just realized that. simplefb is a plain memory buffer, only info about HW is the screen size... bummer...