Package: src:linux Version: 5.6 Recently, the Loongson64, aka loongson-3 switch to device-tree, and the console cannot accept input anymore due to SERIAL_OF_PLATFORM is not enabled. While SERIAL_OF_PLATFORM depends on OF, we need to enable it at the same time. Don't backport this modification to 4.19, since the switch is after 4.19. -- YunQiang Su