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

[Wolfgang Denk]

Dear Stephen Warren,

In message <50CA1BB8.4000704 at wwwdotorg.org> you wrote:
>
> > Arghh... Do we really, really have to invent yet another way to pass
> > hardware configuration information?  Especially one totally
> > incompatible to any other system?
> 
> This is a special case for the console UART. The idea is to get that up
> and running well before device tree is parsed in any way. For example,
> Tegra's SPL doesn't touch the device tree in any way (or even know one
> exists) but does want to print (possibly error) messages in a generic
> fashion. Similarly, many problems could occur before the device tree is
> parsed (e.g. the user forgets to provide one...), and having
> specifically the console UART set up before that allows those errors to
> be reported, rather than requiring a JTAG or similar debugger.
> 
> My intent is that ODMDATA will definitely only be used for the console
> UART, and will NOT be used for anything else like LCD, RTC, ... Those
> other devices will certainly be configured via device tree.

We've been there before, you know.

OK - what is the scope of visibility of such code?  Will it be
strictly board specific only?  Or SoC specific? Arch? Global?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
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