[U-Boot] [PATCH] ns16550: allow UART address to be set dynamically

[Wolfgang Denk]

Dear Tom Rini,

In message <50C9D41B.7010800 at ti.com> you wrote:
>
> > Where would the device addresses come from - out of the device
> > tree?
> 
> Board specific knowledge.  I'd be tempted to add UART3 (iirc) into the
> am335x_evm default build so that we can support the Industrial DevKit
> variant out of the box, rather than needing one of the other _uartN
> builds.  We can tell which board we're on at run-time already.

I'm afraid this doesn't scale.  You are opening a can of worms here.
The UART port may seem simple enough, but you set a precedent.  Next
comes some netowrk interface configuration, then if we have a RTC,
followed by LCD properties, and so on.

We have two ways to configure hardware properties:
- static configuration in the board config file
- dynamic configuration through the device tree

Please do not start adding other methods.

Best regards,

Wolfgang Denk

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