#linux-sunxi on 2018-05-08 — irc logs at freenode.irclog.whitequark.org

2015-02-18 19:37 Turl 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

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09:18 <paulk-gagarine> mripard_ and others: when porting an a13 tablet to mainline, the AXP seems to shut down when enabling the USB controller that has the Wi-Fi chip

09:19 <paulk-gagarine> it looks like an overcurrent and disabling the controller makes it go through

09:20 <paulk-gagarine> mhh maybe I'm missing the wifi regulator here

09:22 <paulk-gagarine> WIFI-3V3 is LDO3 on the reference design schematics

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09:23 <paulk-gagarine> and I already have usb1_vbus-supply = <&reg_ldo3>;

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09:42 <jaganteki> did you attach vmcc-supply and vqmmc-supply?

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10:31 <paulk-gagarine> jaganteki, it's an usb wifi chip

10:31 <paulk-gagarine> so no

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10:32 <jaganteki> can't you use id pin?

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10:39 <paulk-gagarine> jaganteki, it's hooked to ehci so no id pin

10:39 <paulk-gagarine> nice to see there is upstream ATF work going on: https://github.com/Andre-ARM/arm-trusted-firmware/commits/allwinner-core-v1

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13:52 <shadeslayer> jernej: hey hey

13:53 <shadeslayer> jernej: BSP kernel question, though I think this generally applies tbh, I enabled the DRM debug log with drm.debug=31 but I don't see the KMS debug messages

13:53 <shadeslayer> the one's that are logged with DRM_DEBUG_KMS

13:54 <shadeslayer> any tips?

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14:08 <buZz> mg

14:08 <buZz> oops

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15:07 <jernej> shadeslayer: I never used DRM driver on BSP

15:08 <jernej> but what you wrote should work in general

15:08 <shadeslayer> ok

15:08 <jernej> try with unconditional printk()

15:08 <shadeslayer> interesting then, I don't really see any of the log messages from the BSP drm driver then

15:08 <Pe3ucTop_> Hi to all, Question about u-Boot SPL PMIC (AXP2xx) configuring , is there any code to modify ? Probably need to switch from 1.5V to 1.8V to get DDR2 working..

15:08 <shadeslayer> jernej: yeah will do

15:09 <shadeslayer> jernej: I don't really know where the driver fails, but I do know it powers up the LCD

15:09 <shadeslayer> so drm_lcd.c works afaik

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15:19 <jernej> Pe3ucTop_: Are you talking about mainline U-Boot?

15:22 <Pe3ucTop> jernej: yes, mainline u-boot looking for ability to initialize corect voltage at startup.

15:24 <jernej> Pe3ucTop: In code, it's done here: http://git.denx.de/?p=u-boot/u-boot-sunxi.git;a=blob;f=board/sunxi/board.c;h=322dd9e23ac379f66b123ddb049d576c52731fc3;hb=HEAD#l517

15:24 <jernej> which mean you can just define correct value in board config file

15:28 <Pe3ucTop> jernej: Big thanks! I'm happy :)

15:28 <jernej> np

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18:29 <revolut4> hey

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19:12 <alifiratari> hi i have problem on orange pi win plus mainline kernel

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19:14 <alifiratari_> but usb does now working

19:14 <alifiratari_> mainline effort shows usb working

19:15 <alifiratari_> anyone have image for opiwin

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19:20 <alifiratari_> a

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20:15 <fangis> nobody knows how to access the bad block table on nand?

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20:53 <plaes> fangis: there's something in wiki

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20:56 <fangis> really

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20:56 <fangis> I read the faqs there too

20:57 <buZz> fangis: http://linux-sunxi.org/MTD_Driver#Bad_Blocks

20:57 <fangis> thanks, but isnt mtd only for mainline?

20:57 <fangis> I am using a legacy kernel

20:58 <fangis> I thought maybe it would be possible to replace the table using a regular dd command or something

21:01 <buZz> i guess the nand controller might keep such a list itself .. but i'm not aware of anyone reversing that

21:02 <fangis> Ok, so maybe the only solution is upgrading that A13 kernel to mainline and then use mtd

21:03 <fangis> honestly I don't even know if mainline supports a13, i need to take a look

21:04 <fangis> anyway: thanks

21:06 <buZz> i think it does

21:07 <buZz> isnt A13 same as the R8?

21:07 <fangis> hmm

21:07 <buZz> Allwinner A13 is SoC with build-in ARM Cortex A8 CPU ARM Mali 400 GPU and Allwinner Cedar Engine VPU, which is also named R8 now

21:07 <buZz> yeah, NextThing / CHIP uses that same processor

21:07 <fangis> I dont know, r8is maybe that chip

21:07 <fangis> one

21:07 <buZz> i think its all working in mainline, just maybe not video output

21:07 <fangis> its an old processor with one single core

21:08 <buZz> yeah

21:08 <fangis> hmm , no video output, too bad

21:08 <buZz> capable of doing PSX emu quite well at 480x272 :P

21:08 <fangis> its a tablet

21:08 <buZz> i have two of these; https://getchip.com/pages/pocketchip

21:08 <buZz> they're also sorta a tablet

21:09 <fangis> can it really emulate psx? i used retroarch and thought the emu was a bit slow

21:09 <buZz> https://github.com/notaz/pcsx_rearmed

21:09 <buZz> use that

21:10 <fangis> i will try, although it seems i have done something like this before

21:10 <fangis> on a10 and a13 the maximum i could emulate was arcade MK2

21:10 <buZz> on 480x272 it does 60fps, without gpu acceleration

21:10 <buZz> your tablet might be a bit higher res ;)

21:10 <fangis> possible

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