Author Topic: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support  (Read 10117 times)


Offline sanyigz

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #1 on: July 20, 2013, 09:50:24 am »
Can someone upload an image which is ready for cubie2 (so the only thing to do is to write on an SD card)?
Is is possible to make the GPU work, or that means that "except A20" that you can't make it work?

Offline patwood

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #2 on: July 20, 2013, 10:26:54 am »
Can someone upload an image which is ready for cubie2 (so the only thing to do is to write on an SD card)?
Is is possible to make the GPU work, or that means that "except A20" that you can't make it work?
The Mali GPU is still not working on the cb2.  I think someone at cubietech is looking into why.

jayjohnson600

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #3 on: July 21, 2013, 03:49:52 am »
Dead in the "quick start".

I suppose that I'm way behind the median cubie user.
I second the vote for image that is ready for SD( for A20), if anyone has the time.

« Last Edit: July 21, 2013, 03:51:36 am by jayjohnson600 »

Offline Rossini

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #4 on: July 23, 2013, 07:57:46 am »
I've got trouble with it. Install and everything went fine. But after that i updated the distro and now it won't boot. I think it installed a kernel-upgrade. How can i prevent the package-manager to install a kernel update? Using a Cubieboard2 A20

thx
Cubieboard2 A20: Pure Debian Jessie

chakr

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #5 on: July 25, 2013, 03:58:11 pm »
There is no gpio-sunxi.ko in sun7i.
Can not control GPIO directly in userspace.

Offline patwood

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #6 on: July 25, 2013, 06:07:18 pm »
There is no gpio-sunxi.ko in sun7i.
Can not control GPIO directly in userspace.
That's because GPIO is built directly into the kernel, not as a loadable module.  See this: http://www.cubieforums.com/index.php/topic,522.0.html.

chakr

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #7 on: July 29, 2013, 02:00:15 pm »
There is no gpio-sunxi.ko in sun7i.
Can not control GPIO directly in userspace.
That's because GPIO is built directly into the kernel, not as a loadable module.  See this: http://www.cubieforums.com/index.php/topic,522.0.html.

cat /sys/kernel/debug/gpio is no result in Fedora 19 sun7i kernel. (I was already try to modify script.bin) And no leds appears.
But Fedora 19 sun4i is still need to load the gpio-sunxi.ko, so that make me confuse.
Any advice?

Offline patwood

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #8 on: July 29, 2013, 02:49:19 pm »
There is no gpio-sunxi.ko in sun7i.
Can not control GPIO directly in userspace.
That's because GPIO is built directly into the kernel, not as a loadable module.  See this: http://www.cubieforums.com/index.php/topic,522.0.html.

cat /sys/kernel/debug/gpio is no result in Fedora 19 sun7i kernel. (I was already try to modify script.bin) And no leds appears.
But Fedora 19 sun4i is still need to load the gpio-sunxi.ko, so that make me confuse.
Any advice?
Ah I see the problem.  This distribution is based on the very, very new 3.4.x kernel for the A20.  It doesn't have gpio support yet (not mentioned in the announcement http://www.mail-archive.com/devel@lists.fedoraproject.org/msg63532.html.  For gpio support, you'll need to use one of the distros built on the 3.3.0 kernel for A20.  There are a couple of distros here based on that, including CUBIUNTU linaro and Cubieez Debian: http://www.cubieforums.com/index.php/board,19.0.html.

forinti

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #9 on: August 14, 2013, 05:18:53 pm »
Hello, thank you for this image, it's working great.

I just have one issue - i can't see or manipulate cpu frequency. I installed xfce4-cpufreq-plugin.armv7hl but it's not showing any information. This worked on Lubuntu and Cubiezz. I suspect my CPU is running too slow, because my c++ benchmark gives poor result and A20 chip is not as warm/hot as when running Lubuntu.

Is there a way to manage cpu speed in this distribution?

forinti

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Re: Fedora 19 ARM remix for Allwinner SOCs release 1, with A20 support
« Reply #10 on: August 17, 2013, 05:24:23 am »
Never mind, found it...

CPU runs on default in ondemand mode and that is mostly about 380 MHz.
Setting can be found in sys/devices/system/cpu/cpu0/cpufreq.

Now it works like a charm :) I think this is the best CB2 distribution available.

-HDMI display worked in 1920x1080 on first boot
-line in and audio out is working
-lots of tools
-beautiful graphic desktop