Linux support for HSUART

Hello,

I'm using an Atom™ Processor E3800 Series System-on-Chip module which has 2 HSUARTs directly from the CPU.

I want to run vanilla 4.1.13 on this CPU.

Currently I'm using the X86_64 defconfig and only one UART is configured. This is probably not the HSUART but a legacy one.

Can you tell what component should be added to the kernel configuration ?

Thank you,

Zvika