Hello Lukasz, Aleksandr, I have not managed to build it for Rpi4-64. I followed the same approach as Aleksandr but it does not work for 64bit system.
Doing exactly the same changes as Aleksandr if I build for MACHINE = "raspberrypi4-64" in local.conf, the .config file has following configs: CONFIG_HAVE_PREEMPT_LAZY=y CONFIG_PREEMPT_NONE=y # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set If in the local.conf I replace the machine to MACHINE = "raspberrypi4" and I bitbake again, the .config file looks as follow: CONFIG_HAVE_PREEMPT_LAZY=y CONFIG_PREEMPT_LAZY=y # CONFIG_PREEMPT_NONE is not set # CONFIG_PREEMPT_VOLUNTARY is not set # CONFIG_PREEMPT is not set CONFIG_PREEMPT_RT=y CONFIG_PREEMPT_COUNT=y CONFIG_PREEMPTION=y So for raspberrypi4 the RT kernel is built whereas for raspberrypi4-64 a non preemptive kernel is built (without adding rt.cfg or the patch a PREEMPTIVE kernel will be built, i.e. CONFIG_PREEMPT=y is set in the .config file). Once I figure out why this happens I will post it here. Any further hints are appreciated. Best Regards, Carles
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#59124): https://lists.yoctoproject.org/g/yocto/message/59124 Mute This Topic: https://lists.yoctoproject.org/mt/96470693/21656 Mute #raspberrypi:https://lists.yoctoproject.org/g/yocto/mutehashtag/raspberrypi Group Owner: [email protected] Unsubscribe: https://lists.yoctoproject.org/g/yocto/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
