imx8qm: turn off A53 cluster for cpu hotplug

The issue of A53 cluster runtime power ON/OFF has been
identified as fifo reset issue, and there is software
workaround to avoid such issue and A53 cluster now can
be turned OFF.

Signed-off-by: Nitin Garg <>
Signed-off-by: Anson Huang <>
(cherry picked from commit 77de1ee8108781ee373613606b94e6ad55ae8ccc)
2 files changed