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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<Ashleee> thanks, I tried looking the part number to get datasheet but no luck ^^
<Ashleee> literally the part number didn't show anything
<Ashleee> i'll retry today when it is more light to see if I hadn't mistyped :)
<Ashleee> it's one of the evil Tanixes...
<Ashleee> surprisingly running Debootstrap was fine, but running a system off eMMC after a while freezes it
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<asdf28> mru: hello, i remember that you have an openembedded image running on your allwinner A20 device. i also installed an openembedded image (core-image-base) that uses the meta-sunxi layer, but there is no sun4i_drm driver present. how did you load this driver in your image?
<asdf28> are the entries in /sys/module the kernel drivers that are currently installed?
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<asdf28> there is only a sun4i_emac (ethernet driver) present, but none of the graphics related drivers as far as i can tell
<asdf28> what's also interesting is that in this barebones image, my /dev/fb0 device is suddenly working
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<asdf28> in the larger images that have more sunxi drivers loaded, it did not appear at all
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<asdf28> in these images, i remember a dmesg entry "replacing simplefb with drm" or something like that. when this message appeared, the framebuffer device stopped working.
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<asdf28> mru: would you mind sharing your device tree and output of 'dmesg' for your allwinner a20 board?
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<splitice> So I have a uart2 with "pinctrl-0 = <&uart2_pins>"
<splitice> i.e no cts/rts
<splitice> but I am still seeing the cts and rts pins behave like cts & rts
<splitice> do I perhaps need to remove uart2_rts_cts_pins: uart2-rts-cts-pin from pinctrl ?
<wens> you probably need to check if anything else is muxing the pins for you
<splitice> @wens what should I be looking for?
<splitice> I checked it's not uart2-rts-cts-pin doing it.
<splitice> the damn pin is tied to hardware reset on my hardware so it's very anoying lol
<splitice> no mention of PA1 or PA2 in my dts
<wens> what about the bootloader?
<wens> you can also check debugfs to see what device claimed the pins (if any)
<wens> if none, then it's probably not linux
<splitice> I'm making it to linux so that should rule out u-boot.
<splitice> unless its muxed and it's the initialization of uart2 thats triggering it
<splitice> Do I need to explicitly defined a function in pinctrl for gpio or is it default?
<wens> what chip are you using?
<wens> for the later chips, it defaults to disconnected
<wens> the older ones, gpio input
<wens> either way they would be high impedance
<splitice> allwinner h3
<wens> you can check /sys/kernel/debug/pinctrl/1c20800.pinctrl/pinmux-pins to see if the pins are used in Linux
<wens> if not, then it's either a bug in the pinctrl driver, or your bootloader
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<splitice> @wens it's really strange actually. I've stopped the rebooting by removing the script that exports pins 363,6,203 & 17.
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<splitice> @wens no /sys/kernel/debug for me might not be compiled in
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<splitice> CONFIG_DEBUG_FS is not set :(
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<splitice> find /sys/firmware/devicetree -iname pins -exec echo -e "echo "{}"\ncat "{} \; | bash | grep PA3\|PA2
<splitice> That seems to indicate linux shouldnt be muxing it. I wonder if I can get linux to explicitly mux it as function gpio
<splitice> I'm not sure how to tell if u-boot muxes the pins hmm
<splitice> there are dts files in repository but I doubt it uses them
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<wens> or maybe just read out the pio registers?
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<montjoie> hello on my sun50i-h6-pine-h64-model-b, the emmc is detected only 1 boot on 2
<montjoie> what can I do ?
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<KotCzarny> random or pattern?
<montjoie> not enough boot to say, but the pattend seems work notwork work notwork etc
<KotCzarny> well, i meant if it's predictable (ie. every cold boot it works, and every warm boot it doesnt)
<KotCzarny> or if there is no pattern
<montjoie> okay just break the pattern with current boot..
<montjoie> anyway it is cold boot always
<KotCzarny> then i would bet on uboot's bug
<montjoie> I mean it is the kernel which dont detect it
<KotCzarny> common cause in the past was flaky power (ac adapter or cabling)
<montjoie> mmmh I check all other jobs which ran on it, emmc always here
<montjoie> probably it is the EMCE which do that....
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<[TheBug]> ohh, okay, only if it's fopr your self..
<[TheBug]> :)
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<jernej> montjoie: As I suggested to Ashleee already yesterday, try adding "mmc-hs200-1_8v;" or "mmc-hs400-1_8v;" property to emmc node.
<jernej> I didn't try it yet but one user reported that it fixed emmc issue on pineh64 board
<jo0nas> I need advice regarding patch proposed to u-boot: Seems I messed up and forgot to bump version, so there is now two sets of v4 of my patch proposal at https://patchwork.ozlabs.org/project/uboot/list/?submitter=76426 - should I issue yet another? Should I then bump to v5 or v6?!?
<montjoie> jernej: my problem seems different, enabling EMCE prevent emmc(mmc2) to work
<jernej> ah, ok, I have no experience with EMCE
<montjoie> me too
<montjoie> I try to made it oworking
<MoeIcenowy> sun-how-many-i is it? ;-)
<MoeIcenowy> BTW it seems that XuanTie 906 is a smaller Application Processor core, and 902 is a MCU core
<MoeIcenowy> maybe Allwinner will try to use XuanTie 902 to replace OR1200
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<KotCzarny> will be a lockdown probably?
<KotCzarny> at least or1k specs/info is open
<MoeIcenowy> who knows
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<megi> risc-v allwinner?
<megi> somehow if 902 is a mcu, 906 probably won't be a high-perf CPU, right? :)
<megi> just going by the numbers
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<MoeIcenowy> megi: seems so
<MoeIcenowy> I heard of a single core RV, 64M DDR2, Linux-capable SoC
<MoeIcenowy> in QFN88 package
<megi> at least it's Linux capable
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