#linux-sunxi on 2018-11-28 — irc logs at freenode.irclog.whitequark.org

2018-08-03 10:18 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*

00:01 <karlp> well, got it working at last :) thanks for the (terse, but correct) pointers. http://false.ekta.is/2018/11/booting-openwrt-on-nanopi-duo2-or-a-nanopi-neo-vi-fel/

00:05 <JuniorJPDJ> Can someone help me with making audio work on A31s tablet?

00:12 <[TheBug]> If I am seeing * First descriptor is NOT a primary desc on 0:1 ** what does this actually signify?

00:12 <[TheBug]> considering the line preious is Trying to boot from MMC1

00:12 <[TheBug]> this is happening in u-boot

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05:13 <banned-why> hello

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06:17 <MoeIcenowy> jernej: do you have arm64 linux fbdev driver for t720 and some test programs?

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06:21 <MoeIcenowy> found the driver

06:28 <MoeIcenowy> jernej: test.c in gh:linux-sunxi/sunxi-mali works

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06:43 <banned-why> found a local website that do contain the .bin and necessary files of my a10 firmware(I presume) but they charge you for it

06:44 <banned-why> lol

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07:06 <plaes> o_O

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07:50 <MoeIcenowy> jernej: btw will real r22p0 work with 02-restore-old-api.patch applied?

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08:15 <MoeIcenowy> mripard: have you checked my T720 binding for H6 yesterday?

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08:38 <jaganteki> anyone found this i2c issue on A64 - i2c i2c-0: mv64xxx: I2C bus locked, block: 1, time_left: 0

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09:15 <montjoie> jaganteki: hit it also

09:15 <montjoie> not sure if it is on a64 or another one

09:18 <wens> if it's locking up, either the device on the bus isn't powered and is accidentally pulling the lines down, you're missing pull-ups, or the pins aren't powered

09:20 <wens> get a scope and check the levels

09:21 <jaganteki> appened, bias-pull-up property on i2c pins

09:22 <jaganteki> I have not added any slave node.. just added i2c0 with pins and testing via i2cdetect

09:23 <wens> is there anything connected on the bus?

09:24 <wens> a camera sensor perhaps?

09:24 <wens> bias-pull-up is very weak. don't expect it to work when another device on the bus is misbehaving

09:25 <jaganteki> I just removed all nodes for testing, and added only only i2c0 (no slaves)

09:25 <wens> jaganteki: I'm not talking about nodes. I'm talking about actual hardware

09:25 <wens> jaganteki: it really doesn't matter what your device tree says, what matters is the hardware

09:32 <wens> anyway, make sure the pins are muxed, the pins are powered, any devices that are connected are powered and best out of reset

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09:37 <jaganteki> wens, I don't see any explict regulator attached to i2c0 or so, checking power here mean the attached devices regulator or so?

09:37 <wens> VCC-P?

09:39 <wens> hmm, I2C0 is on PH, so no dedicated supply

09:39 <wens> I'd say testing it with the pins muxed, with bias-pull-up, but without actual devices connected

09:39 <wens> it might still lock up though

09:41 <plaes> wens: your RTC patchset has two patches labelled 07/15

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09:41 <jaganteki> the setup connected with panel, and touchscreen is on i2c0

09:42 <plaes> [PATCH 07/15] rtc: sun6i: Add support for all known variants

09:42 <jaganteki> i think this can be a read devices connected

09:42 <plaes> [PATCH 07/15] rtc: sun6i: Add support for all known pre-H6 variants

09:46 <wens> jaganteki: ok. you probably need to power the panel and touchscreen, so it's not drawing power from the I/O pins

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09:46 <wens> it happens when the I/O pins aren't tri-state when powered off

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10:10 <noblock> I’ve added the H5 support to the Libreelec Allwinner branch by jernej. But I get a mali crash at the kernel level. ASSERT failed: 0xCAFEB000 == mali_hw_core_register_read(&mmu->hw_core, MALI_MMU_REGISTER_DTE_ADDR). An idea?

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11:26 <jaganteki> wens, does vcc-ctp effect? this power drwan on I/O lines. this is linked in TWI0-SDA, TWI0-SCK which inturn connected GPIO0LDO in axp803

11:27 <wens> huh?

11:29 <wens> jaganteki: yeah, that would be it. That's the external pull-up

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11:38 <jaganteki> wens, so we can supply in slave node right not global to respective bus. am i correct?

11:39 <wens> yes

11:39 <jaganteki> ok, thanks..will try that.

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15:19 <catphish> i'm interested in hobby osdev on an arm device with integrated graphics, i was wondering whather an allwinner chip (either on a dev board or one of their tablets) would be a reasonable place to do this? i know i can program the cpu core, but i'm interested in how well documented the video interfaces are, am i likely to be able to get basic 2d graphics output working?

15:20 <catphish> i have some experience with an A20 dev board, but thought it might be more interesting to target an A64 tablet, these both have Mali400 MP2, which i've not looked at in any way

15:20 <catphish> do i have any chance of being able to achieve anything on such a device?

15:21 <BenG83> there is an open source driver project for mali400

15:21 <BenG83> https://gitlab.freedesktop.org/lima/linux

15:22 <BenG83> https://gitlab.freedesktop.org/lima/mesa

15:22 <BenG83> but you want to run on bare metal?

15:22 <BenG83> or at least with u-boot/ATF?

15:25 <catphish> BenG83: yes, i was hoping to write for bare metal initially just for fun

15:26 <catphish> if an open source driver exists, that's a promising start, documentation would be better, but maybe i can read the code

15:26 <wens> you can go display with bare metal

15:26 <wens> s/go/do

15:26 <catphish> wens: cool, thanks, i'll give it a try!

15:29 <catphish> do people run custom linux-sunxi on allwinner android tablets like these? https://www.ebay.co.uk/itm/32GB-10-Inch-Android-5-1-Lollipop-Quad-Core-64GB-Allwinner-Camera-HDMI-TABLET-PC/192466251835

15:30 <catphish> i'll almost certainly use a dev board to begin with, but if i have any success i'd quite like to play with something with a screen

15:33 <pmpp> catphish: meanwhile for giving touch input to your dev board with any tablet you can use TUIOdroid

15:34 <catphish> that's pretty cool :)

15:35 <catphish> getting udp working on the gmac is pretty simple so might try that as soon as i have 2d graphics working

15:37 <catphish> wens: is there any specific documentation for using the display, or will i just need to read the code?

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15:40 <wens> you can read the code

15:40 <catphish> ok, will do so :)

15:40 <catphish> thanks

15:40 <BenG83> http://linux-sunxi.org/images/7/7b/Allwinner_DE2.0_Spec_V1.0.pdf

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15:43 <catphish> that looks helpful :) how does that relate to the GPU?

15:43 <wens> catphish: in no way. the GPU is a completely separate hardware block

15:44 <catphish> can i just not bother with the GPU and write directly to the display with that interface?

15:44 <wens> yeah

15:44 <catphish> oh, i'll do that to start with then, thanks

15:44 <BenG83> the GPU is just a memory-to-memory accelerator you put in the pipeline or not

15:45 <catphish> much simpler, and documented, i don't need a GPU at all really

15:45 <catphish> at least not for hello world

15:45 <BenG83> u-boot can provide a simple framebuffer to the OS

15:45 <BenG83> you could look at that code

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15:48 <catphish> thanks for the pointers, i'll start writing code and see how i get on

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15:51 <jernej> MoeIcenowy: I really don't know if that patch allows for coexistence of old and new API

15:51 <jernej> at the time, I had only driver with old interface

15:51 <jernej> maybe r18 has new? I don't know

15:53 <jernej> noblock: I tested H5 port LibreELEC multiple times, but I always run into this issue: https://imgur.com/a/ESmCDLo

15:53 <jernej> I tried many things, but I couldn't find the issue

15:54 <jernej> maybe mali450 gbm driver needs special build, but allwinner never gave any mali450 gbm userspace driver

15:58 <karlp> don't you have enough projects yet catphish? :)

15:59 <catphish> karlp: never, i fill the gaps in some with brief others :)

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16:04 <catphish> several of my electronics projects are on hold until i finish my pick and place, which is itself on hold awaiting parts from china :)

16:05 <wens> jernej: use drivers from rockchip :)

16:06 <jernej> wens: I used driver from Rockchip, Amlogic and Hisense and all gave such result

16:06 <anarsoul> jernej: try lima? :)

16:07 <jernej> wens: but it might be that they all use PMU

16:08 <jernej> anarsoul: eventually, yes

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16:08 <jernej> but I'm in no hurry making support for H5

16:08 <fALSO> can I ask a dumb question ? not dumb for me, but maybe for you guys

16:09 <jernej> actually in dmesg there are some GP errors, not sure how they come up

16:09 <fALSO> What is the "use" of installng this module ? https://github.com/mripard/sunxi-mali

16:09 <fALSO> i got it working yesterday on my H3

16:09 <fALSO> but i dont know "how to use" it after loading the module

16:09 <fALSO> there isnt any info on that page too

16:10 <jernej> fALSO: that is kernel space driver for mali

16:10 <jernej> you need user space part too

16:10 <fALSO> I copied that .so etc... but theres is no place explaining what to do next

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16:10 <fALSO> does it make it possible to run opengl es2 stuff ? like that hacked quake 3 ?

16:12 <jernej> you have explanation here: https://github.com/bootlin/mali-blobs/tree/master/r6p2/arm

16:12 <jernej> and yes, you can run all kinds of apps, compiled for OpenGL ES 2.0

16:13 <BenG83> the userspace libs replace the software gl libs basically

16:13 <fALSO> but only in FB ? or inside X.org ?

16:13 <BenG83> depends on which version of mali blob you use

16:13 <fALSO> yesterday i compiled a gl2 glxgear thingy, but it is only using software rendering LOL

16:14 <jernej> uninstall mesa and use above blobs instead

16:14 <BenG83> check with ldd the libraries it uses

16:14 <fALSO> https://github.com/glmark2/glmark2

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17:12 <noblock> jernej: I tried the hikey blob; I will try with the others.

17:15 <noblock> With the r5p0 blob, glmark failed before the end; The H5 hardware configuration is not heavely tested. I'm not sure this is so reliable. And I have never tried using Android...

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17:28 <jernej> noblock: did you enable mali450 support in kernel driver?

17:29 <jernej> btw, with mali4xx drivers, you have to match kernel and userspace driver versions below r6p2

17:29 <jernej> above that, they use same api

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17:34 <noblock> I have tried with CONFIG_MALI450=y r9p0 kernel driver and the r7p0 hikey blob.

17:35 <noblock> But I'm not familiar with wayland, and I have not tried glmark.

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20:06 <mickenx> IS the smhc thing (sd card) different on small Pinebook compared to 15" model?

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20:07 <mickenx> We have problems on the smaller one that didn't exist on the 15"

20:08 <mickenx> We use the DMA way to access card

20:10 <BenG83> not really mickenx

20:10 <mickenx> ok

20:11 <mickenx> I am thinking in the lines of u-boot gives somehing new..

20:11 <mickenx> if there is a difference in power settings or something

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20:12 <mickenx> we get write errors hight up in the sw stack

20:12 <mickenx> higher

20:12 <mickenx> works perfect on 15"

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20:15 <mickenx> I don't have the small one here ( our guy in uk has)

20:15 <BenG83> the boards in the production Pinebooks are all the same

20:16 <mickenx> k

20:16 <mickenx> Then I don't know :/

20:16 <mickenx> ARe they very sesitive when it comes to different cards?

20:16 <BenG83> I guess sdcard and cabling are ruled out?

20:17 <mickenx> cabling?

20:17 <BenG83> the things on the right side are on a daughterboard

20:17 <mickenx> right

20:17 <BenG83> audio/usb/sdcard/hall-sensor

20:17 <BenG83> connected with a FFC to the main board

20:17 <mickenx> I don't think he checked that

20:18 <mickenx> but I assume it is a production unit

20:18 <BenG83> tried a different image?

20:18 <BenG83> any hardware issues should show up there as well

20:18 <mickenx> well , u-boot works

20:18 <mickenx> I will ask him to try a linux image

20:19 <BenG83> maybe try anarsoul's mainline images

20:19 <BenG83> https://github.com/anarsoul/linux-build/releases

20:19 <mickenx> ok , but from what I can read on twitter most distros including NetBSD works on the smaller ones

20:20 <mickenx> anyway I will ask him to try it

20:20 <BenG83> https://github.com/u-boot/u-boot/commit/0e21a2ffb3404152c90cdcd9fc9ba34b404beab8

20:21 <BenG83> the last fix to u-boot regarding mmc was this

20:21 <BenG83> sunxi-mmc: use new mode on both controllers on A64

20:21 <BenG83> https://github.com/u-boot/u-boot/commit/629d267a9738f0214853493968f114962de54642

20:21 <anarsoul|2> there're actually 3 commits

20:21 <BenG83> https://github.com/u-boot/u-boot/commit/2a8882ecefdeb9eb7ea2ea21427460e773a00e5a

20:22 <mickenx> We configure sdcard from scratch

20:22 <mickenx> but newmode might not be in use

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20:23 <BenG83> for RiscOS ?

20:28 <BenG83> mickenx in which mode are you trying to run the sdcard?

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20:32 <mickenx> BenG83: yes riscos ... dunno about the mode , I need to check with the other guy

20:33 <mickenx> Rading the docs , I can't find much info on the differences of the modes

20:33 <BenG83> I mean in which speed mode

20:33 <mickenx> ah

20:34 <mickenx> The clock is running at 200Mhz for normal use , if I understand you right

20:35 <mickenx> and if I remeber my code :D

20:35 <BenG83> sdcard is restricted to 3.3V modes

20:35 <mickenx> ok

20:35 <BenG83> only the eMMC can run at 1.8V modes / HS200

20:35 <BenG83> sdcard usually runs in SDR25 mode max

20:36 <mickenx> ok we dealt with that part

20:36 <mickenx> u-boot makes the ccu clock setting go pretty high for sdcard

20:37 <anarsoul|2> BenG83: SDR50

20:37 <BenG83> is SDR50 still a 3.3V mode?

20:38 <BenG83> SDR50 has 100Mhz

20:38 <mickenx> the power settings is left untouched ( I think )

20:38 <BenG83> https://www.sdcard.org/press/past_evens/pdf/SD_Standards_and_Technology_GWTaipei_Oct2014.pdf

20:38 <mickenx> ok then I might be wrong in what I remember

20:39 <anarsoul|2> BenG83: it's 50MHz I believe

20:39 <mickenx> I will check out the most recent code ,

20:39 <BenG83> yeah 50Mhz is SDR25

20:39 <anarsoul|2> oh, OK

20:39 <BenG83> or HighSpeed rather

20:41 <BenG83> [ 92317.712014] ld0: 4-bit width, High-Speed/SDR25, 50.000 MHz

20:49 <mickenx> ok

20:49 <mickenx> I need to check this,,, but I want to make sure we are talking clock.. There is one register in ccu and one in smhc..

20:50 <BenG83> 50Mhz is the mmc bus clock to the card

20:51 <mickenx> and does the bus clock relate to the ccu/smhc clock registers?

20:52 <BenG83> there is a divider to derive the bu sclock from the internal clock for the mmc module

20:53 <BenG83> SMHC

20:53 <BenG83> Clock

20:53 <BenG83> Control Register

20:53 <mickenx> aha

20:53 <mickenx> so That is th purpose of that register

20:53 <BenG83> CCLK_DIV

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20:54 <mickenx> Thanks

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21:17 <fALSO> sirs: check my orange pi pc: https://i.imgur.com/VP2bFbY.png =)

21:18 <BenG83> ;)

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21:31 <fALSO> going to try again to see if i get any output from the mali stuff

21:32 <fALSO> any software you guys use to test the opengl es2 stuff ?

21:32 <fALSO> or any game that supports it or whatever ?

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21:36 <zzeroo> fALSO: https://webkitgtk.org/ ^^

21:37 <fALSO> thanks

21:38 <fALSO> this runs inside xorg or just on the console fb ?

21:40 <zzeroo> It should run under X and the fb. But I thougth such as the wayland/weston stack would fine

21:40 <fALSO> thank you again zzeroo for the hints

21:40 <fALSO> going to DIG IN

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21:44 <zzeroo> gl I climbed down this rabbit hole a few months ago. On a A20 with mainline kernel. But, without success

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21:46 <fALSO> im with an orange pi pc "H3", with the latest 4.20-rc

21:47 <fALSO> weston seems to start, first time i used it

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21:47 <fALSO> the drawing of the borders of the terminal is very slow

21:47 <fALSO> when moving it

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22:10 <fALSO> everything is now complaining about undefined symbols

22:10 <fALSO> gbm_create_device

22:10 <fALSO> on a libglamourgl

22:12 <tilpner> Yep, here too

22:12 * tilpner started sway with mali blobs, but it lacks gbm_bo_unmap

22:15 <zzeroo> Has the orange pi "H3" an LVDS interface? Like this one on the A20 Bananas?

22:17 <zzeroo> No I've found the data sheets :( why is this so rare? don't get it

22:20 <fALSO> i dont even know what that is

22:20 <zzeroo> http://wiki.lemaker.org/7/10.1_inch_LCD_Module_Instruction

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23:52 <catphish> i'm trying and failing to find any sunxi framebuffer driver code in the kernel, where should i be looking?

23:58 <gnarface> i think there are only the generic framebuffer drivers, or else out-of-tree patches

23:59 <gnarface> i could be wrong about that