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

2013-06-17 Thread Stefano Babic
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 ma...@denx.de
 Cc: Fabio Estevam fabio.este...@freescale.com
 Cc: Lauri Hintsala lauri.hints...@bluegiga.com
 Cc: Otavio Salvador ota...@ossystems.com.br
 Cc: Stefano Babic sba...@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_CBSIZE1024/* Console I/O buffer size */
 +#define CONFIG_SYS_CBSIZE256 /* 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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Re: [U-Boot] [PATCH] ARM: mxs: Make the console buffer smaller

2013-06-17 Thread Marek Vasut
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 ma...@denx.de
  Cc: Fabio Estevam fabio.este...@freescale.com
  Cc: Lauri Hintsala lauri.hints...@bluegiga.com
  Cc: Otavio Salvador ota...@ossystems.com.br
  Cc: Stefano Babic sba...@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
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Re: [U-Boot] [PATCH] ARM: mxs: Make the console buffer smaller

2013-06-17 Thread Stefano Babic
Hallo Marek,

On 17/06/2013 14:51, Marek Vasut wrote:

 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.

I think that a point to consider is if all scripts are already provided
or we let the user/owner of the board to add his own scripts, as I
presume. It is pity if he cannot do what u-boot really supports only to
save some bytes.

Best regards,
Stefano

-- 
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DENX Software Engineering GmbH, MD: Wolfgang Denk  Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de
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Re: [U-Boot] [PATCH] ARM: mxs: Make the console buffer smaller

2013-06-17 Thread Otavio Salvador
On Mon, Jun 17, 2013 at 10:07 AM, Stefano Babic sba...@denx.de wrote:
 Hallo Marek,

 On 17/06/2013 14:51, Marek Vasut wrote:

 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.

 I think that a point to consider is if all scripts are already provided
 or we let the user/owner of the board to add his own scripts, as I
 presume. It is pity if he cannot do what u-boot really supports only to
 save some bytes.

I think this is more than enough to justify a bigger buffer.


--
Otavio Salvador O.S. Systems
http://www.ossystems.com.brhttp://projetos.ossystems.com.br
Mobile: +55 (53) 9981-7854Mobile: +1 (347) 903-9750
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