#linux-exynos on 2014-10-15 — irc logs at freenode.irclog.whitequark.org

2014-05-14 17:51 Wizzup changed the topic of #linux-exynos to: This channel is logged: http://irclog.whitequark.org/linux-exynos | http://linux-exynos.org | http://lists.linux-exynos.org/listinfo/linux-exynos | https://github.com/linux-exynos

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11:54 <Wizzup> javier__: (only just found time now) do I still need those patches?

11:54 <Wizzup> (mainline display)

11:54 <javier__> Wizzup: if you have an exynos5420 peach pit you need the in-flight patches

11:55 <javier__> exynos5800 peach pi is ok because it does not have an eDP/LVDS bridge

11:55 <Wizzup> I have the Pi

11:55 <Wizzup> So just linux-next right?

11:56 <javier__> yep

11:57 <Wizzup> alright.

11:58 <javier__> Wizzup: you still need to enable some config options though or apply this patch https://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg35828.html

11:59 <Wizzup> thx

11:59 <javier__> yw

11:59 <Wizzup> will clone & build it now, and see

12:01 * Wizzup also has a snow at home

12:06 <Wizzup> exynos_defconfig right?

12:13 <javier__> yes

12:13 <javier__> with ^^ patch applied

12:13 <javier__> Wizzup: are you using simplefb u-boot? in that case you will have to disable CONFIG_FB_SIMPLE as well

12:15 <Wizzup> I don't think I am

12:15 <Wizzup> At least, I normally use the chrome os linux

12:15 <Wizzup> Which I think does not use simplefb

12:16 <Wizzup> And if not, disable CONFIG_FB_SIMPLE?

12:18 <javier__> Wizzup: are you booting FIT images using the verified u-boot? in that case you are safe

12:19 <javier__> the problem is if you are doing chained booting with the nv-uboot that adds a simplefb node in the FDT

12:19 <Wizzup> I use nv-uboot

12:20 <Wizzup> does this already allow for heterogenous big.little?

12:22 * Wizzup removed CONFIG_FB_SIMPLE

12:24 <javier__> Wizzup: the b.L switcher is enabled by default in exynos_defconfig

12:24 <javier__> so you have to disable to have HMP

12:25 <Wizzup> (but I want HMP and not the switcher)

12:25 <Wizzup> ok

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12:45 <Wizzup> hm, no luck yet

12:48 <Wizzup> Used these steps (for bulding, not the git repo)

12:49 <Wizzup> (and the config steps)

12:50 <Wizzup> (just got a black screen)

13:06 <javier__> Wizzup: I only have a peach pit here so I can't try but it should work afaict

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18:49 <Wizzup> javier__: well, I find it very hard to debug

18:50 <Wizzup> Do you have a serial soldered on one of those devices or something?

20:04 <javier__> Wizzup: yes I do have a serial console for debugging

20:05 <Wizzup> that must be nice ;-)

20:05 <Wizzup> What's the status of snow?

20:05 <Wizzup> similar or better?

20:05 * Wizzup should try that tomorrow

20:06 <javier__> Wizzup: it needs the drm bridge patches that have not been merged yet

20:06 <Wizzup> ah

20:06 <javier__> but I'm pretty sure is working since I've a snow with me and tested it the other day

20:06 <Wizzup> with the patches

20:07 <javier__> Wizzup: fyi kevin hilman shared how to get serial console on the peach pit/pi https://plus.google.com/114361737637935606044/posts/BoSG5WyQ511

20:07 <javier__> Wizzup: you need to do some soldering though :)

20:08 * Wizzup soldered the entire day and is quite depressed at the result

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20:08 <javier__> Wizzup: yes using this branch http://cgit.collabora.com/git/user/javier/linux.git/log/?h=wip/exynos/dp-integ

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20:08 <Wizzup> but soldering when lying on the floor with little light is not my favourite

20:08 <Wizzup> javier__: I wish I could copy your mind to our wiki ;-)

20:08 <javier__> :)

20:09 <Wizzup> however

20:09 <Wizzup> the serial on this chromebook looks quite easy!

20:09 <Wizzup> ah, 1.8V

20:09 <Wizzup> great... ;-)

20:10 <Wizzup> I.... can't say this looks good: https://lh6.googleusercontent.com/-dmCEj2WKbUI/U5HQzDGVpFI/AAAAAAAACcI/lMPvuYIegEY/w671-h895-no/IMG_20140605_213908.jpg

20:15 <javier__> Wizzup: I wish you never see my soldering skills then ;)

20:16 <Wizzup> where is the GND?

20:16 <Wizzup> I can't get to picture 4, it tells me I've finished the album at 3/4

20:16 <Wizzup> :hng:

20:16 <Wizzup> https://lh5.googleusercontent.com/-22Ipg9QiLq4/U5HR0CmfsNI/AAAAAAAACbo/MT3sMIPChv8/w684-h924-no/Chromebook2_13_DebugPads.jpg there we go

20:24 <Wizzup> just to be sure, I don't *need* the reset and firmware things, right?

20:27 <Wizzup> Swabbles: http://linux-exynos.org/wiki/User:Wizzup/Wiki_Wishlist

20:27 <Wizzup> feel free to add

20:38 <Wizzup> ah @ ground

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20:52 <Swabbles> Pointers for required u-boot is still a pain, because it doesn't compile for snow/spring yet.

20:52 <Swabbles> Wizzup: ^

20:53 <Swabbles> At least not with dtc-1.4.0.

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