#linux-sunxi on 2018-08-25 — 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*

00:02 <vicpt> Finally working, also with usb ethernet adapter

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06:24 <parco> hi all, is there something else I need to do to get my MIPI DSI working, beyond setting up device tree and panel driver

06:24 <parco> I haven't done anything to tell linux to actually fill any buffers with pixels...

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08:33 <jernej> wens: this fixes PSCI U-Boot issue: http://sprunge.us/h0hK1k

08:33 <jernej> why exactly, I don't know

08:34 <jernej> I just noticed that ld from binutils-2.30 aligned secure section to 0x1000

08:34 <jernej> but ld from binutils-2.31.1 does not (which seems to be correct behaviour)

08:34 <jernej> so imo, it's U-Boot issue

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08:35 <jernej> wens: can you confirm that above patch solves the issue?

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09:45 <jernej> apritzel: you wrote U-Boot PSCI code, right?

09:46 <jernej> I think code in some cases uses absolute addresses

09:46 <jernej> which shouldn't right?

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11:14 <jernej> wens: it looks like if "CONSTANT(COMMONPAGESIZE)" in arch/arm/cpu/armv7/u-boot.lds is replaced with "0x1000"

11:14 <jernej> everything works

11:15 <jernej> so, maybe binutils bug nevertheless?

11:30 <jernej> wens: offending commit: https://github.com/bminor/binutils-gdb/commit/702d167134149f420ea3bcbc194d63a2653a0c27#diff-b1d17b73566e43abd1a12620ae7b0052

11:31 <jernej> https://github.com/bminor/binutils-gdb/commit/702d167134149f420ea3bcbc194d63a2653a0c27

11:31 <jernej> if it is reverted, U-Boot works

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12:13 <KotCzarny> that jfether should read linux-sunxi new device howto

12:13 <KotCzarny> and since he used 'our board', as an employee of olimex should definitely fix it

12:14 <KotCzarny> oh, i'm mistaken

12:14 <KotCzarny> just someone with weird writing style

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12:36 <wens> jernej: that is weird

12:53 <jernej> wens: weird in what way?

12:54 <jernej> they changed a place where config.commonpagesize is set

12:54 <jernej> I think that is the issue

12:54 <jernej> I already filled a bug to binutils bugzilla

12:54 <jernej> let's see what they think

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13:23 <wens> the result is __secure_start is completely not aligned (except for 4 byte alignment of course)

13:25 <wens> neither are the interrupt vectors for secure mode

13:25 <wens> and there's also a gap between __secure_start and the interrupt vectors

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14:44 <jernej> MoeIcenowy: I have some time to check A64 HDMI driver

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14:44 <jernej> can you point me to your latest code?

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15:31 <MoeIcenowy> jernej: my a64-de2-v4

15:32 <MoeIcenowy> although my DRM fixes are not there

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15:39 <MoeIcenowy> https://github.com/Icenowy/linux/tree/a64-de2-v4

15:39 <MoeIcenowy> if you want a url

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18:49 <parco> do I need to have xorg installed in order to test my MIPI DSI panel driver?

18:50 <parco> I don't see any framebuffers in /dev, like "/dev/fb0", which leads me to think Linux isn't properly setup to push any pixels

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18:58 <parco> I'm now thinking maybe I shouldn't have enabled the display engine in the devicetree

18:58 <parco> Does anyone have an example device tree for the A33/R16 that uses a mipi dsi panel? or better yet an example for Banana Pi M2 Magic

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19:04 <parco> I also enabled the simple_fb node, probably shouldn't have done that :?

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20:01 <parco> mripard: i noticed you're on a lot of these commits for allwinner mipi support, thank you. Is there any documentation anywhere on how to setup a BananaPi M2 Magic's device tree for a MIPI DSI LCD panel?

20:03 <parco> Which nodes do I override?

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21:07 <parco> I'm making progress, but now seeing some issues with sun4i-drm and sun6-mipi-dsi. Here is the log: https://pastebin.com/raw/xD5jpMM2

21:07 <parco> Notably, the "sun6i-mipi-dsi 1ca0000.dsi: Couldn't register our component".

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23:46 <parco> I'm also seeing "sun4i-drm display-engine: failed to bind 1ca0000.dsi (ops 0xc074988c): -517"

23:47 <parco> Could that be due to a faulty device driver?

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