Project Ideas - Basic RTEMS BSP for Cortex-R5 on Qemu

[Pavel Pisa]

Dear Kamlesh,

On Friday 15 of April 2022 06:50:44 Kamlesh Bharodiya wrote:
> I am looking for mentors for my project. How can I connect to interested
> mentors? I have uploaded the draft proposal on GSoC tracking page.

I have long time interrest in RTEMS running on TMS570LC4357
which is Arm Cortex-R5F based. I have TMDX570LC43HDK at home
and some smaller boards are at Elktroline.cz.

As I know, the Cortex-R5 core is already supported
by RTEMS and our TMS570LS3137 BSP has been used
with TMS570LC4357 chips by Frankfurt University

  https://www.rz.uni-frankfurt.de/65100666/dcs

Relevant repository

  https://github.com/jalmito/rtems

It would worth to get mainline TMS570 BSP compatible with
both chips.

But back to your project, possibility to run RTEMS on Cortex-R5
architecture in QEMU would be usesfull for testing. My search through
actual QEMU sources confirms Cortex-R support and only in  Cortex-R5
and Cortex-R52 variants and only integration on ZCU102.
But support of Cortex-R5 comprocessor on "big" Xilinx platforms
can be usesfull. I have helped with bought of these boards
years ago but for the team which moved away. But I probably
can find even somebody with HW who could test the code.

The minimal set of the peripherals supported to make port
usable and living needs to include GIC (generic interrupt controller),
TTC (system timer) and UART (serial port).
Other option is some mailbox based exchange with main Cortex-A CPU.

Have you some experience with ZCU102?
I have no much idea how difficult the project is...

I can help as co-mentor, I cannot offer main mentor role
because I have too many running projects. 

I CC to Sebastian Huber, because if I remember well they
have provided support for some Cortex-R5 platform already.

Best wishes,

                Pavel Pisa
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