rellla 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 - *only registered users can talk*
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<wens> jernej: I will
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<wens> phipli: check out #armbian?
<wens> KotCzarny: do we know if the watchdog also resets the arisc core? or like, how much of the SoC does the watchdog cover?
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<smaeul> wens: both the normal watchdog and trusted watchdog can reset the whole SoC*
<smaeul> *except apparently part of the DE2 registers, and sometimes it hangs on H5
<smaeul> crust enables the trusted watchdog with a five second timeout, and it definitely resets the ARISC in addition to the ARM world
<wens> IIRC there are 3 watchdogs: the normal one in the timer block, R_WATCHDOG, R_TRUSTED_WATCHDOG
<smaeul> yes, r_watchdog appears to be the same IP block as the normal watchdog. I've never used it
<smaeul> arisc blob doesn't either AFAIK
<smaeul> (arisc blob does use two timer channels though -- one for interrupts and the other for udelay)
<smaeul> R_TWD has the advantage that it can reset the system immediately (you can set the delay to zero clock cycles)
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<wens> timer watchdog on h6 only freezes the system :/
<wens> wow, and u-boot prompt is sluggish as hell
<lurchi_> slow scrolling/refresh?
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<wens> u-boot has no scrolling / refresh
<wens> it's a serial console
<smaeul> have you tried twd on h6?
<wens> not yet, was going to try r_wd first, but it doesn't seem to be the standard IP
<smaeul> I think just the offsets are different
<lurchi_> wens: when both fb and serial console are active, they are kept in sync
<wens> when I enter a key, the previous key I typed comes out, and the key I just entered only comes out the next time I type a key
<smaeul> sounds like the empty tx buffer interrupt isn't firing or something
<smaeul> normal watchdog is at TIMER + 0xa0, R_WATCHDOG doesn't have an offset from the MMIO base
<smaeul> r_twd reset sequence, once you turn on the clock: mw.l 0x07020830 0x0; mw.l 0x07020810 0x80000200; mw.l 0x07020814 0x0d140001
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<wens> R_WATCHDOG successfully resets the system
<smaeul> this is where it'd be really nice to have arisc firmware on h6, but ENOTIME and ENOHARDWARE
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<wens> looks like PSCI takes precedence over watchdog :(
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<smaeul> yes, so you would need to modify ATF to use r_watchdog on h6
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<jernej> smaeul: wens: Rebooting on H6 works for me most of the time and I'm using official ATF source, master from few days back.
<jernej> not sure what is different to your systems
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<wens> my ATF is old. I'll try updatin
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<wens> nope, latest ATF doesn't work for me on my orangepi lite 2
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<lvrp16> this has been asked 1000 times. anybody see this issue: ARMSOC PrepareAccess: Failed to map buffer
<lvrp16> Driver failed PrepareAccess on a pinned pixmap
<lvrp16> 4k screen
<lvrp16> i don't have a 1080P screen to test sadly
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<wens> hanetzer: I realized I was writing the unsigned FIT image to the drive (facepalm
<wens> hanetzer: I still haven't been able to get Debian's kernel working though, it just boots up to a white screen
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<hanetzer> wens: heh. happens
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<rah> mru: were you addressing me? if so I'm not sure what you're saying
<rah> I have a Mele A1000G with an A31 chip; I just installed Debian Buster which has Linux 4.19; there are a number of DRM modules loaded but nothing under /dev/dri and there doesn't seem to be anything about DRM reported in the kernel log even though there are modules loaded; X is using the fbdev driver; is it possible to use a DRM driver with X?
<rah> drm 356352 4 sun4i_backend,sun4i_tcon,sun4i_frontend,drm_kms_helper
<rah> or perhaps I should rephrase: in the "Status Matrix" on the mainlining page in the wiki, there is "Display (SimpleFB)" and "Display
<rah> (DRM)"; how do I make use of DRM?
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<wens> it is not enabled in the device tree for the Mele A1000G
<wens> you need to enable it in the device tree
<wens> each board needs to be enabled and tested by those that have them
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<wens> mfd stuff merged in for v5.0-rc3
<fALSO> i bought a H6
<fALSO> waiting to start to build kernelzzz
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<rah> wens: ah I see, do you know which nodes need to be enabled? or can you point to a patch for another board being enabled?
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<wens> look at the a31-hummingbird or primo81
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<gamelaster> Hi everyone, where can I found when some patches will be merged to mainline (for example cedrus) ? I was searching in mailing lists, but I didn't found much
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<plaes> cedrus is already partially mainlined
<gamelaster> plaes: Yeah, but I'm interested about when H264 and H265 support will be merged :/
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<jernej> catphish: Now that you know inner working of writeback, you can implement Linux driver :)
<jernej> Last time I checked, interface wasn't complicated
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<catphish> jernej: i can certainly give it a try!
<catphish> just got to address some frame rate / vsync issues in my own code then i'll take a look at the apis, i'm very unfamiliar with linux internals
<mru> I'm having a bit of an issue with the kernel rng taking a long time to initialise
<mru> sometimes over a minute
<mru> am I missing something stupid?
<mru> the boot scripts are supposed to save/restore the entropy pool, but that doesn't seem to be helping
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<wens> gamelaster: the v4l2 interface for h264/h265 is still being ironed out
<mru> it'll probably be done a bit after v4l2 is entirely obsolete
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<gamelaster> wens: okay, well, I will try to apply things to 4.20 and get libva v4l2 request working for VLC
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<mru> has anyone ever seen the AP6210 bluetooth module work?
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<mru> if so, what is the required incantation?
* karlp watches intently. gttting bt on the ap6212 is my next job
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