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

Stefano Babic sbabic at denx.de
Mon Jun 17 12:49:49 CEST 2013


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 at denx.de>
> Cc: Fabio Estevam <fabio.estevam at freescale.com>
> Cc: Lauri Hintsala <lauri.hintsala at bluegiga.com>
> Cc: Otavio Salvador <otavio at ossystems.com.br>
> Cc: Stefano Babic <sbabic at 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.

Best regards,
Stefano

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