Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

12/21/2017

VJ 08:55 AM Software Development: RE: FPGA GPIO interrupt

Hi Dan
I have attached the kernel module we are trying to load, fpga_uinput.ko and the Makefile.
One thing we have not figured out is how the fpga gpio interrupts are mapped into the linux interrupts.
To make this work (on our previou... V J

12/20/2017

DV 01:14 PM Software Development: RE: FPGA GPIO interrupt

Hi Vidar,
Can you please post your updated dts and the source for the gpio driver?
Dan Daniel Vincelette

VJ 12:32 PM Software Development: FPGA GPIO interrupt

Hello
In our design we need to generate a gpio interrupt in the fpga, catch it on the Linux side and execute various SW- actions.
We have a working ‘fpga gpio interrupt kernel module’ developed for another board, and we want to port i... V J

VJ 12:56 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board

Hi
Checking out the altera 4.1.22-ltsi-rt branch from git://github.com/altera-opensource/linux-socfpga, and compiling the kernel with gcc version 4.8.3 solved the problems.
Thanks!
BR
Vidar
V J

12/18/2017

DV 03:22 PM Software Development: RE: How to generate the device tree files

Hi Vidar,
The recommended procedure is to copy our development kit dts and alter it for your needs:https://support.criticallink.com/gitweb/?p=linux-socfpga.git;a=blob;f=arch/arm/boot/dts/socfpga_mitysom5csx_devkit.dts;h=6fa36cbad203e2... Daniel Vincelette

VJ 02:58 PM Software Development: How to generate the device tree files

Hi
In our design we have added a msgdma, some pios and irqs, and we need an updated dts file.
I am not able to find any board related xml files for the MitySOM 5CSX eval board, so using the sopc2dts tool to auto generate the dts file... V J

DV 01:51 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board

Hi Vidar,
You might need to checkout the altera 4.1.22-rt instead of trying to use the source that yocto downloads as your kernel source directory. If you would like yocto to build your out of tree module then this link should help: h... Daniel Vincelette

VJ 12:54 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board

Hello Dan,
Thanks for the update. I have built the krogoth branch, and have now a running system!
The next step is to compile my gpio interrupt kernel module, and I have some problems.
From my previous Terasic project I have a work... V J

12/15/2017

DV 01:35 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board

Adding poky_checkout.sh, I missed it in my past post.
My apologizes,
Dan Daniel Vincelette

12/14/2017

DV 11:31 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board

Hello,
I would recommend using our newer krogoth branch in order to build the the 4.1.22-ltsi-rt kernel. I've been able to use it in conjunction with altera's meta layer to build the the rt kernel.
I have attached a few files that ... Daniel Vincelette

12/11/2017

VJ 01:32 PM Software Development: RE: Using PREEMPT_RT on MitySOM 5CSX Dev Board

Hi
The company I work for has just started working on the MitySOM 5CSX Development board, and in our system we need to use the preempt-RT version of the kernel.
Currently we have a working project using the Terasic DE0-Nano-SoC eval ... V J