Hi Charles,
No experience with how patches should be introduced, but below is a patch
for config-pin on linux 3.14.51
Hope this helps someone.
md5sum of the original config pin: 74a71c0a84c46d2df4e14113dea4834a
The problem was related to changes in how the /sys/ files are named.
Tried 4.1.x a
Building the kernel because I have some custom modules.
BTW, This works for me:
echo pruin > /sys/devices/ocp/ocp:P9_25_pinmux/state
But "config-pin P9.25 pruin" gives me the previous error.
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Hi Charles - this will be sweet when I get past the error.
My kernel it is from RCN.
Using Kernel 3.14.51-r1 which I built from:
https://github.com/RobertCNelson/ti-linux-kernel/tree/linux-3.14.y
When I run "config-pin P9.25 pruin" I get this error:
P9_25 pinmux file not found!
Please verify
I am working with the PRU on the 3.14 series kernel.
There is no cape manager, and I want to employ the proper technique for
muxing a PRU pin.
For example, the file "am335x-bone-common-pinmux.dtsi" contains this
definition which
is the pin that I want to activate:
P9_25_pruin_pin:
Hi William,
The notes from https://github.com/beagleboard/bb.org-overlays; show
Version: DTC 1.4.1-g2341721b
I used this as the basis for a build today and it gave me Version: DTC
1.4.1-ga2b02dea
Is this wrong or are the notes just out of sync?
Also, is it reasonable for me to expect my
I current have PRU code working on Linux 3.8.13-bone73, and now
want to move to Linux 4.1.x
Having troubles - here is what I have done so far:
1. apt-get install linux-image-4.1.4-ti-r9
(good, or should I use linux-image-4.1.4-bone15 ?)
2. Add dtb=am335x-boneblack-overlay.dtb to uEnv.txt
Thanks Robert.
I grabbed the am335x_pru_package here:
git clone https://github.com/beagleboard/am335x_pru_package.git
Rebuilt it, and installed the various parts, then rebuilt my PRU code.
Still have the SAME basic problem: prussdrv_open() fails.
if (prussdrv_open(PRU_EVTOUT_0) != 0)
{
Just switched to this:
github.com/RobertCNelson/bb.org-overlays (instead
of github.com/beagleboard/bb.org-overlays)
It gave me Version: DTC 1.4.1-g4b066e20 and updated the kernel to
4.1.5-bone15
Unfortunately this did not solve my PRU app problem.
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Nice! Cheers to you and the others who are fixing this!
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Robert thanks for the reply.
Aren't you currently battling with spontaneous reboots in the 4.1 series?
Thought I read
this here recently, but can't find the post just now.
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I have some PRU code working under 3.8 and need to move to 3.14.
Trying to build the latest Linux 3.14 for BBB with UIO_PRUSS support.
i.e:
git clone https://github.com/RobertCNelson/ti-linux-kernel-dev.git
cd ti-linux-kernel-dev
checkout origin/ti-linux-3.14.y -b tmp
./build_kernel.sh
When
Yes, I do need to compile modules.
When you say any latest 3.8 does that mean that I should grab it from
kernel.org, or somewhere else?
BTW: One thing that I am not clear on is how to know if an official
release from kernel.org has evolved
enough or when a specialized version is needed.
I
Unfortunately I do not YET have enough experience with the Sitara, PRUs,
Linux devie tree, etc. to jump into
making such a contribution. Have only been playing with the BBB for a week.
Can anyone point me to a kernel source that would be the best for a
new-commer to play with the PRU?
Working through Robert's guide I noticed this...
For Mainline v3.8.x: (full cape support)
For Mainline v4.1.x: (capemgr support)
Has something changed with regard to cape support?
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Eventually I need to incorporate a TI PTP Ethernet Phy which is know to
have had some problems that were
fixed in Linux 3.12.x Will also need stable USB support.
I noticed in Robert's repository there are versions ranging from 3.1.x to
4.2.x
Would the 3.12.x version be as good as 3.8.x with
William, thanks for all the info. Good to know Robert is The Man. I
will try working though the link to his stuff.
Re my comment about kernel.org - I am unfamiliar with the behind-the-scenes
operation, but from what I observe
the source from kernel.org supports many arm processors and
Then it sounds like I should aim for 4.1.x since that is where Robert and
the community is going. I had no problem
getting 4.1.1 built and running, but the PRU is a black box for me.
So, regarding 4.1.1 - Is the PRU support known to be broken?
I would be happy to go through the process of
I have a new Beaglebone Black booting the Debian 4GB SD image from
2015-03-01.
My Linux kernel is 4.1.1 built from
git://github.com/beagleboard/linux.git.
I see that the kernel has a driver uio_pruss which from what I have read
allows loading PRU code.
There is a LOT of web info on the PRU,
Thanks all for the detailed replies. Also, the dpkg build is very nice - a
guy could get used to it ;-)
-J
On Tuesday, July 7, 2015 at 10:43:34 AM UTC-7, jalod...@gmail.com wrote:
I have a new BeagleBone Black (rev C) and got it booting from SD with the
Debian 4GB SD image from 2015-03-01
Thanks Robert.
Does this DTS set the I/O for use with the TI PRU Cape?
(www.ti.com.tool/prucape)
Also, is there a Getting Started guide that assumes use with Linux?
(The TI guide seems to ditch Linux and use StarterWare)
Regards,
Jalodi
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I have a new BeagleBone Black (rev C) and got it booting from SD with the
Debian 4GB SD image from 2015-03-01.
My goal is to cross compile a kernel on my Linux PC and move the necessary
files to the Debian SD card.
So I got the 4.1.1 Linux kernel from here:
git clone
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