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SK-AM62B: AM62 Linux : CPU on/off-line error issue

Part Number: SK-AM62B

Champs:

How to dynamically make 4 cores AX53 CPU0/1/2/3 online / offline by these cmds?

The target CPU can be offline, but, I cannot make it online.

Any fix?

BR RIo

root@am62xx-evm:~# ls
root@am62xx-evm:~# echo 0 > /sys/devices/system/cpu/cpu2/online
[ 820.586011] IRQ 134: no longer affine to CPU2
[ 820.590792] CPU2: shutdown
[ 820.593533] psci: CPU2 killed (polled 0 ms)
root@am62xx-evm:~# echo 1 > /sys/devices/system/cpu/cpu2/online
[ 833.085537] CPU2: failed to come online
[ 833.089387] CPU2: failed in unknown state : 0x0
-sh: echo: write error: Input/output error

BR Rio