From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH 1/3] serial: 8250_early: Add earlycon support for AMD
 Carrizo / Stoneyridge
Date: Mon, 26 Mar 2018 19:24:28 +0100
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> Sadly, this situation
> is not unique to this hardware. There is hardware all over that does
> not meet the current assumptions being made in the early uart drivers
> within the kernel.

Is there any fundamental reason you can't just embed dt entries in the
ACPI table to describe the other features you need. I appreciate it
doesn't solve the generic PC case but it ought to help for anything where
the firmware cares about Linux ?

Alan