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debian stretch + kernel 4.4 firmware release (hw accelerated), kodi installable

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Posted at 7/6/2017 23:15:55      1#
Last edited by firefly_dev_740 In 7/6/2017 23:20 Editor

Hello, guys! Thank you for your work.
I have an issue with thermal module in kernel. I used to successfully build opencv 2.4.9 on Firefly-RK3288 with Ubuntu 14.04 server firmware (slightly altered, I've installed X server and OpenBox there) with no issues on all 4 cores (make -j4).
However, with this firmware installed I got my Firefly automatically switched off with following message:
  1. Message from syslogd@localhost at Jul  6 14:56:19 ...
  2. kernel:[ 3690.721460] thermal thermal_zone0: critical temperature reached(90 C),shutting down
  3. Connection to 192.168.0.109 closed by remote host.
  4. Connection to 192.168.0.109 closed.
Copy the code


How can I disable this feature or make temperature limit higher? As I mentioned earlier, I've successfully built this version of opencv on all cores, but now kernel is more aware of current CPU temperature. Thanks.
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Posted at 7/7/2017 00:19:17      2#
Last edited by firefly_dev_740 In 7/7/2017 00:20 Editor

Also I have an issue with taking backup of device partitions. Android Tool on Windows 8 show me, that my device is in Maskrom mode.

This strange behavior started to happen after I've downloaded rk3288_ubootloader_v1.01.06.bin bootloader. Could you please help with backing up procedure?
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Posted at 8/13/2017 18:28:25      3#
+1 for git link.
I've tried this: https://github.com/rockchip-linux/kernel/tree/release-4.4 (it's 4.4.71 when mac-l1's distro is based on 4.4.55) with extracted configuration from /proc/config.gz, now I have eDP-1 presented in xrandr. If I switch eDP-1 off (e.g. xrandr --output eDP-1 --off or by passing kernel parameter video=eDP-1:d), then image shows normally.
I'm also interested in building fast booting system for embedded development, so it would be nice to have building instructions.
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Posted at 8/16/2017 18:51:28      4#
sghazagh Posted at 8/16/2017 15:23
hi all,
I am also using https://github.com/rockchip-linux/kernel/tree/release-4.4 for my kernel whi ...

Hello sghazagh. How do you build a kernel?
I use instructions from here http://rockchip.wikidot.com/linux-user-guide to build linux kernel and uboot. There is also device tree generated at build time. Make sure you are using latest source code from rockchip-linux.
Also, what is the problem with HDMI output? Despite having extra output eDP-1, image is pretty stable. You can switch eDP-1 off either with

xrand --display :0 --output eDP-1 --off

or by appending parameter

video=eDP-1:d

to kernel boot arguments.
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Posted at 9/11/2017 22:33:36      5#
Guys, please respond. We need instructions on building HW accelerated OS distribution. There are lots of demos on the Internet, but nobody wants to tell, how they achieved the result
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