[PATCH RFC 3/4] powerpc/microwatt: Add early debug UART support for Microwatt

[Michael Ellerman]

Paul Mackerras <paulus at ozlabs.org> writes:
> Currently microwatt-based SoCs come with a "potato" UART.  This
> adds udbg support for the potato UART, giving us both an early
> debug console, and a runtime console using the hvc-udbg support.

Can y'all get a real UART?

There's more code here than in the platform itself.

cheers