On 2020-08-27 11:19:10 [+0200], Daniel Wagner wrote: > the the dtb file via ftp and then does a booti. For all non PREEMPT_RT > kernels (PREEMPT, NONE, SMP=n, ...) everything works fine. For the > PREEMPT_RT kernel uboot complains with > > U-Boot> booti 0x00080000 - 0x02600000 > bootloader-commands: Wait for prompt Starting kernel (timeout 00:03:43) > booti 0x00080000 - 0x02600000 > ERROR: Did not find a cmdline Flattened Device Tree > Starting kernel ... > > It's the same dtb in all cases. Not totally sure what is upsetting uboot > here, maybe the load addresses don't work anymore? So v5.9-rc2-rt1 with PREEMPT_RT=y enabled leads to the problem and v5.9-rc2-rt1 with PREEMPT_PREEMPT=y boots fine? > In short, I can't really say if v5.9-rt for ARMv8 works for me. Sebastian
