#linux-sunxi on 2023-08-29 — irc logs at oftc.irclog.whitequark.org

2022-12-21 00:44 ChanServ changed the topic of #linux-sunxi to: Allwinner/sunxi development - Did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait for an answer! - This channel is logged at https://oftc.irclog.whitequark.org/linux-sunxi

00:08 <youmukonpaku1337> apritzel: that fixed it

00:09 <youmukonpaku1337> i now have mmc0

00:13 <youmukonpaku1337> now im thinking, what if the wifi isnt being powered purely because it isnt enabled in dt... i gotta try that xD

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00:24 <youmukonpaku1337> HA

00:24 <youmukonpaku1337> IT FUCKING SURE AS HELL IS ROUTED TO LDO3

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00:25 <youmukonpaku1337> guess i can get wifi without wasting a precious usb slot heh

00:31 <youmukonpaku1337> huh doesnt seem to work atm but i suppose it probs doesnt work in uboot

00:32 <youmukonpaku1337> but ya vcc on wifi is routed to ldo3

00:33 <youmukonpaku1337> so i should be able to get wifi on this thing

00:34 <youmukonpaku1337> ill keep ldo3 and usbphy in the dts for now

00:38 <youmukonpaku1337> oh wow now that im looking at dts

00:39 <youmukonpaku1337> there is practicallt nothing except display and gpio keys that shouldnt be identical

00:39 <youmukonpaku1337> and even then i doubt display is too different

00:44 <Jookia> youmukonpaku1337: yes most of the core stuff is re-used between boards

00:44 <youmukonpaku1337> so im quite lucky

00:45 <youmukonpaku1337> as megi mentioned before only difference is mmc0 power and gpio keys

00:45 <youmukonpaku1337> so display should also probs work too? idk im a bit lazy to test but i will eventually

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07:11 <megi> display will not work, unless it's exact same model I have

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10:44 <apritzel> youmukonpaku133: U-Boot doesn't support WiFi at all, in case you wonder

10:45 <apritzel> and how is this WiFi module connected? Via MMC1? And what's the name of the chip?

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11:43 <youmukonpaku1337> apritzel: the interface for a wifi module is usb (but with 3.3v powered by ldo3

11:43 <youmukonpaku1337> megi: the panel should be identical except for touchscreen but ill check pin count in a sec (touchscreen uses a separate connector, no?)

11:46 <youmukonpaku1337> megi: the display connector is the same 34pin one as touchlux3 im pretty sur

11:48 <youmukonpaku1337> apritzel: since uboot is compiled without wifi or usb support i assume it wont power the wifi pins by ldo3 then?

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11:50 <Jookia> probably not unless you set the regulator to be always on

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11:54 <youmukonpaku1337> so yeah i think this board is practically identical except for touch, keys and mmc0 power supply

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12:03 <youmukonpaku1337> Jookia: i see will test if its getting powered now

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12:08 <youmukonpaku1337> ok it isnt but ehhh its probs lack of uboot usb support xD

12:09 <Jookia> there may be another regulator you have to enable somewhere

12:11 <youmukonpaku1337> Jookia: maybe but i somehow doubt that unless "avcc" is related

12:12 <youmukonpaku1337> megi: what's avcc?

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12:32 <apritzel> youmukonpaku1337: some analogue voltage, often for audio (maybe the "A" even stands for audio)

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12:42 <apritzel> youmukonpaku1337: enabling U-Boot USB support should be quite straightforward

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12:43 <apritzel> there is a "default n" for CONFIG_PHY_SUN4I_USB, but just because USB is mostly untested on the V3s

12:47 <apritzel> regulators for USB devices are a bit tricky, since normally USB devices don't appear in the DT, because they are plug&play

12:48 <apritzel> so regulator-always-on; is probably an acceptable (and common) workaround, at least for now

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14:51 <youmukonpaku1337> apritzel: i enabled always on regulator for ldo3 but doesnt seem like wifi pins are powered still... ive checked conductivity between ldo3 and vcc on the interface so it should work..

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14:51 <youmukonpaku1337> apritzel: i doubt avcc is for audio because theres no audio on this device

14:52 <youmukonpaku1337> nor on the pb626 if im not wrong

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15:00 <Jookia> youmukonpaku1337: look on the board for a separate regulator and trace the wifi power pins

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15:04 <youmukonpaku1337> Jookia: i see lemme check then

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15:20 <youmukonpaku1337> back with a nicer client :D

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15:31 <apritzel> the datasheet says AVCC is the "Power Supply for Analog part"

15:32 <apritzel> so there might be other parts in the SoC feeding on this (LRADC?)

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15:49 <youmukonpaku1337> apritzel: hmm and what's lradc?

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15:52 <apritzel> Low Resolution Analogue Digital Converter, that's for instance used for some buttons (here: Menu and Home key)

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15:56 <youmukonpaku1337> back to revolution irc it is

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16:06 <youmukonpaku1337> apritzel: oh i see, cool so ill have to enable that later, also i will test for other regulators routed to wifi

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20:13 <youmukonpaku1337> okay so on the wifi interface, v33 usb pin 97 on the soc is routed to d+, ldo3 is routed to vcc, d- is routed to pin 96 (soc) which is udp1 and ground is well

20:13 <youmukonpaku1337> ground

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20:56 <youmukonpaku1337> alright so ive written a more or less complete dt except for keys

21:02 <youmukonpaku1337> gonna test now

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21:23 <apritzel> youmukonpaku1337: you can just hand this DT over to the kernel as well, just use that line to boot the kernel: bootz $kernel_addr_r - $fdtcontroladdr

21:23 <apritzel> and you can upload the kernel with FEL, just add "write 0x41000000 zImage" to your sunxi-fel line

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22:22 <linkmauve> Hi, is there any known issue with decoding VP8 of width ≥2048 on A64?

22:23 <linkmauve> https://linkmauve.fr/files/mpv-shot0089.jpeg

22:23 <linkmauve> I’m getting those weird artifacts atm.

22:23 <linkmauve> I can reproduce in both Gstreamer’s v4l2slvp8dec and in my own userspace.

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