meta-raspberrypi kernel comes from https://github.com/raspberrypi/linux and they stopped providing -rt options some time ago.
Your options are to apply the -rt patchset to regular rpi kernel and enable needed options via custom .bbappend, or take linux-yocto-rt and see how far you get. Alex On Mon, 23 Jan 2023 at 10:57, Carles Sole via lists.yoctoproject.org <[email protected]> wrote: > > Hello all, > > I would like to understand if it is still possible to build an image for > raspberrypi4-64 where the preempt-rt patch is applied to the kernel, e.g. by > adding "PREFERRED_PROVIDER_virtual/kernel" to local.conf. > > I could see that in older branches of [meta-raspberrypi] there was a specific > recipe for the preempt-rt patch, e.g. linux-raspberrypi-rt_4.19.bb. This > recipe was using the specific raspberrypi branch rpi-4.19.y-rt. > > I see that in newer branches this rt branch disappeared but I was not able to > understand the history and what is the current method to implement this > patch, assuming is still supported. > > Any hints on how to do this would be much appreciated. > > Best Regards, > Carles > > >
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