On Mon, 30 Mar 2020 at 09:35, Leif Lindholm <l...@nuviainc.com> wrote:
>
> Hi Jiang,
>
> It is not a question of effort of copying a driver, it is a question
> that copying drivers is something that should be avoided wherever
> practically possible. I did not think this topic was still under
> debate.
>
> If the existing 16550 SerialPortLib is overspecialised to the point
> where it only works on a subset of 16550 implementations, then it
> should change. There are going to be more non-PC systems turning up
> with 16550 UARTs - should they each copy/modify their drivers?
>
> If there are better ways of solving that problem, please suggest.
> But more duplicated drivers is not the answer.
>

Could we use a GUIDed HOB? If it exists, we use its contents, and if
it doesn't, we use the default set by the FixedPCD.

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