Building leon3 prom image for testing on renode

[Alan Cudmore]

Hi Mazaya,
I wonder if it is possible to initialize the processor to the state where
it can run the RTEMS image in RAM without using the prom image? The
processor initialization would have to go in the resc script before the
image is loaded and started.
Also, as you mentioned, the renode Zephyr example runs directly from RAM
without a prom image. Is it that the RTEMS LEON3 BSP relies on
initialization done by the boot prom (GRMON or MKPROM2 based boot code)?
https://github.com/renode/renode/blob/master/scripts/single-node/leon3_zephyr.resc

I guess it ends up being a trade off of tooling vs. trying to program the
necessary initialization in the resc script.

Regards,
Alan

On Tue, Jul 18, 2023 at 2:46 AM Muhammad Sulthan Mazaya <
msulthanmazaya at gmail.com> wrote:

> Hi,
>
> I was trying to implement renode for testing leon3 using rtems-test. I
> noticed that from the example they provide
> https://github.com/antmicro/renode-rtems-leon3/blob/main/leon3_rtems.resc,
> it seems like the renode simulator needs the prom image of leon3 to do so.
> I don't think an additional build step before testing a particular bsp is
> something supported by the build config of rtems-tools + my mentors also
> said it shouldn't be on the rtems-tools. Is it okay to have RSB build that
> for us as part of the BSP?
>
> Thank you,
> Mazaya
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