pc386 BSP documentation tweaks.

[Joel Sherrill]

On Mon, Sep 21, 2020 at 12:40 PM Karel Gardas <karel.gardas at centrum.cz>
wrote:

> On 9/21/20 7:34 PM, Gedare Bloom wrote:
> > On Sat, Sep 19, 2020 at 2:31 PM Karel Gardas <karel.gardas at centrum.cz>
> wrote:
> >>
> >>
> >> Hello,
> >>
> >> attached are three patches:
> >>
> >>     pc386 BSP: add runtime options for debugging and move few lines
> >> around for better context.
> >>     pc386 BSP: add a note about default baud rate for console over
> UART/COM.
> >>     pc386 BSP: remove USE_COM1_AS_CONSOLE reference, the option is long
> >> time gone.
> >
> > We still have this option, but I don't think it does anything. Maybe
> > it should be noted as "Obsolete"?
>
> By "long gone" I mean this option is handled by configure/make and now
> also waf, but is not preserved in the C code at all. So basically the
> option does nothing as implementation C code was probably removed.
>
> Or am I looking wrong?
>

No. It is dead as in "He's dead, Jim". :)

It is still in the README:

pc386/README:+ BSP_ENABLE_COM1_COM4 - value of 1 to enable, 0 to disable
pc386/README:+ BSP_USE_COM1_AS_CONSOLE - value of 1 forces console to COM1
pc386/README:  USE_COM1_AS_CONSOLE=1 --enable-rtemsbsp=pc386 \

And I think providing guidance in the user's manual that if you used to
use this option when building, that there is a new way to achieve the same
result would be desirable.

--joel

>
> Thanks,
> Karel
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