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<mrnuke>
oh GODS of sunxi, I call upon thee again. I'm trying a mainline kernel on a cubieboard, but the kernel gets stuck at "[ 0.000000] Calibrating delay loop... "
<mrnuke>
is there a driver that I should select/have build-in?
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<wens>
cubieboard? cubieboard2?
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<mrnuke>
cubieboard 1
<wens>
hmm
<wens>
stuck at calibrating delay loop might mean something wrong with the clocksource
<mrnuke>
which describes exit code 4 as "no shell"
<mrnuke>
damn this nonsense
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<mrnuke>
must have been some funky config option. started from scratch with sunxi_defconfig. now it works
<wens>
:)
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<mrnuke>
mripard: around?
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<zerodamage>
Hello, I'm trying to get an capactive I2C touchscreen to work on a cubieboard with an Allwinner A10 and linux-sunxi. Should use the atmel_mtx module, but it does not seem to load. Have set up the fex file as described for other touchscreens, confirmed I2C response on correct adress.
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<mripard>
mrnuke: yes?
<mrnuke>
mripard: hi
<mrnuke>
I got that SPI stuff tested. I have a few patches, but there was one change I recall you not being very excited about
<naobsd>
tokuda-san and I am very busy... no or very few progess :(
<naobsd>
btw there is #linux-rockchip for rockchip ;)
<jmcneill>
awin keeping me plenty busy :)
<jmcneill>
making good progress with a80, not sure what to do about hdmi though
<naobsd>
a lot of commits in source-changes :)
<naobsd>
how about smp on a80?
<jmcneill>
on the todo list
<jmcneill>
bringing up the other a7 cores should be easy
<jmcneill>
a15 is a trickier problem that i am going to leave for someone else :)
<naobsd>
ah
<naobsd>
I saw matt does something
<jmcneill>
he is doing lpae
<naobsd>
sorry, it might be a17
<zerodamage>
Thanks Seppoz, that was what I meant, I have compiled the atmel_mtx_ts module succesfully, but how do make it register the touchscreen device without fex support?
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<Seppoz>
add it to the i2c devices
<Seppoz>
and from what i saw there is a ton of gpio setups
<Seppoz>
in the driver
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<zerodamage>
Seppoz, I'm not familar with adding i2c devices is general, so what do you mean specifically?
<zerodamage>
I think i'm looking for a userspace approch initally, if possible?
<jemk>
rellla: but the real work is reading the traces and understanding/guessing what it means
<jmcneill>
jemk, you are working on cedarx?
<jmcneill>
what kernel interfaces are required for that?
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<jemk>
jmcneill: allwinner mmaps the whole register space and physical memory to userspace, nothing you really want to use
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<jmcneill>
ick
<jmcneill>
would love to get cedarx supported on netbsd at some point, but not that way :)
<jemk>
currently we use that, but for mainline something like v4l2 should be used
<jmcneill>
We do have a v4l2 layer, but it hasn't been used for anything other than capture devices.
<mripard>
jmcneill: can you even use GPL'd code?
<jmcneill>
Not in the kernel, no.
<mripard>
(or even look at some GPL code to write your code)
<jmcneill>
Well, "no". Could load a module.
<jmcneill>
That's why I was asking about the kernel interface. If the heavy lifting is done in userspace, and there is a defined API, implementing it wouldn't be a big deal.
<wens>
mripard: i'll probably base my mmc series on your latest patches
<oliv3r>
lo
<mripard>
wens: yeah, that's why I sent them asap
<mripard>
wens: either way, you should not really do it like that
<mripard>
either do it with the three different clocks like what's already done, and my patches will rework it as needed
<mripard>
or base your patches on top of mine
<mripard>
but don't do it using the old and dirty way
<wens>
mripard: i agree, so i'll rework mine to be like your patches
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<rellla>
jemk: yeah, what i meant was how to get the traces. i've seen the recedro repo already.
<rellla>
jemk: steps in short: 1) build valgrind with ammt 2) run a player with allwinner blobs 3) do a trace analysis ?
<jemk>
rellla: 2) run a player with blobs through valgrind to get the trace
<rellla>
jemk sure. what minimal player setup is recommended?
<jemk>
noves minimal players are fastest (valgrind makes eveything slow), but they only decode, no disp
<jero>
anyone by chance would have the fex file for aw-som tech's a10 system-on-modules ?
<rz2k>
new cedar, previous quadcore design (a33?) and no powervr?
<nove>
and a hardware audio codec engine?
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<rz2k>
needs sata and linux support and A20 is dead.
<Wizzup>
What do you mean, A20 is dead?
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<jmcneill>
sata would be nice on a newer chip yeah
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<nove>
rellla: to tell you the truth, it would be better to give priority to actually start doing the v4l driver, if not this willnever begin
<nove>
rellla: and if you want to help, one way would be to start learning how to use a v4l2 mem2mem device from userland, because it will be nice to have help in writing simple programs to test if the driver is working ok or not
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<nove>
rellla: and for that you don't have to wait for the driver, the mem2mem_testdev.c is more than enough to start
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<rz2k>
Wizzup: I mean that there would be no reason for TV boxes manufacturers to buy A20 anymore.