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realtime linux on am62x

Added by Nathan Wright 7 days ago

Hi guys,

With TI we can specify ARAGO_RT_ENABLE=1 and the layer will switch from preferring linux-ti-staging to linux-ti-staging-rt.

Is there something comparable for linux-cl-ti-staging?

If not, what would be the recommended path forward for getting PREEMPT_RT on am62x?

Thanks,
Nathan


Replies (2)

RE: realtime linux on am62x - Added by Jonathan Cormier 5 days ago

Hi Nathan, Sorry for the delayed response. I am working on created an -rt version of our kernel recipe. Just waiting on builds to finish and to confirm it actually built the rt kernel.

RE: realtime linux on am62x - Added by Jonathan Cormier 4 days ago

Pushed kernel branch: https://support.criticallink.com/gitweb/?p=linux-ti.git;a=shortlog;h=refs/heads/mitysom-rt-linux-6.6.y
Updated 62xx-build.sh script to include the ti_rt configs as well

root@mitysom-am62x:~# uname -a
Linux mitysom-am62x 6.6.58-rt45-01858-g52ba4fa38e62 #20 SMP PREEMPT_RT Thu Mar 27 17:39:32 EDT 2025 aarch64 GNU/Linux
root@mitysom-am62x:~# zcat /proc/config.gz | grep PREEMPT_RT
CONFIG_PREEMPT_RT=y

Still working on the yocto recipe part. It built but the kernel was missing the RT configs. Probably missing something simple.

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