Hi All,
Good news everyone, it works!
The problem was that I did not put: allow_all_aps_stop(bsp_apicid);
into my auto.c code. I did not knew about it :/
The core was never put to sleep and this error was never reached: print_initcpu8("while waiting for BSP signal to STOP, timeout in ap ", apicid);
There is too big timeout.
All in all it does boot Linux and SMP kernel works. It only complains that some MTTRs are not same on both cores, but kernel fixes that. I will take a look into this later.
Thank you for help,
Rudolf