Re: xenomai-4 on raspberry-pi-4

[Philippe Gerum <rpm@xenomai.org>]

Hans Petersen via Xenomai <xenomai@xenomai.org> writes:

> Hi, everyone,
>
> I'm trying to get XENOMAI-4 to run on the Raspberry-PI-4.
>
> For this I downloaded the source files '*v5.10.y-evl-rebase*' and compiled
> them with 'bcm2711_defconfig'.
>
> Unfortunately, the image does not work because many specific files, such as
> the device tree and the broadcom drivers and serveral config-flags, are
> missing in the source tree.
> However, these are also missing in the mainline kernel.
>

Xenomai targets mainline kernels exclusively.

> I can load a kernel version *'5.10.52*' from the *Raspbian repository*.
>
> *Now my question*:
>
> Is there a possibility to patch XENOMAI4 into the Raspbian sources, or any
> other way to install a Xenomai-4 on the Raspberry-PI-4?
>

Unlike its predecessors, Xenomai 4 does not use the patch model, it is
directly developed into the target kernel.

FWIW, I have been running EVL based on the mainline kernel on the rpi4
for more than a year now (headless system though), and this is actually
one of my workhorses for testing it. If you really need to run a vendor
kernel, then you are pretty much on your own unfortunately; you might
try to apply the 5.10.y..5.10.y-evl-rebase diff set to a Raspbian kernel
based on the same mainline version.

-- 
Philippe.