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Memory-mapped UART terminal

From: Andrew Wygle
Subject: Memory-mapped UART terminal
Date: Mon, 6 Oct 2014 20:27:36 +0000

Hello the list,

I am bringing up a newer board which does not have its COM ports in the usual 
I/O ports. As far as I can tell, they are solely memory mapped. I am trying to 
get GRUB2's serial terminal functionality working with these UARTs, but the 
--unit flag appears to only look in the 4 standard I/O ports, while the --port 
flag does not appear to accept a memory address.

Is what I want to do possible? If so, how can it be done?

Thank you,

~Andrew Wygle

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