[U-Boot] [PATCH] ARM: mxs: Make the console buffer smaller

[Marek Vasut <marex@denx.de>]

Hello Stefano,

I'm CCing Wolfgang,

> Hi Marek,
> 
> On 15/06/2013 23:41, Marek Vasut wrote:
> > Using 1024 bytes for console buffer is unnecessarily too much,
> > lower the amount for all MXS boards to 256.
> > 
> > Signed-off-by: Marek Vasut <marex@denx.de>
> > Cc: Fabio Estevam <fabio.estevam@freescale.com>
> > Cc: Lauri Hintsala <lauri.hintsala@bluegiga.com>
> > Cc: Otavio Salvador <otavio@ossystems.com.br>
> > Cc: Stefano Babic <sbabic@denx.de>
> > ---
> > 
> >  include/configs/mxs.h |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > Note: This depends on http://patchwork.ozlabs.org/patch/251631/
> > 
> > diff --git a/include/configs/mxs.h b/include/configs/mxs.h
> > index a684166..161d89d 100644
> > --- a/include/configs/mxs.h
> > +++ b/include/configs/mxs.h
> > @@ -92,7 +92,7 @@
> > 
> >  #ifndef CONFIG_SYS_PROMPT
> >  #define CONFIG_SYS_PROMPT	"=> "
> >  #endif
> > 
> > -#define CONFIG_SYS_CBSIZE	1024		/* Console I/O buffer size */
> > +#define CONFIG_SYS_CBSIZE	256		/* Console I/O buffer size */
> > 
> >  #define CONFIG_SYS_PBSIZE	\
> >  
> >  	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
> >  	
> >  						/* Print buffer size */
> 
> I am missing something: which is the real advantage to reduce the
> console buffer ? I do not think that the saved memory is worth, and on
> the other side more elaborated scripts (usings nested if-then-else) are
> quite long nowadays.

True, but so far they didn't overflow this limit I believe. Some of them are 
hanging on the verge of blowing it though, good point.

Best regards,
Marek Vasut