[U-Boot-Users] U-boot ColdFire development

[Wolfgang Denk]

Dear Liew Tsi Chung,

in message <4791E710007FEB4BBF83775D787F462F047A3F6C at az33exm22.fsl.freescale.net> you wrote:
> 
> There is no speed performance in erasing and reading between common CFI
> flash driver and board specific flash driver, except programming. CFI
> flash driver needs ~80s to program 1MB data compare to board specific
> flash driver needs only ~14s. User has a choice to select them either by

Are you absolutely sure about this? Did you enable
CFG_FLASH_USE_BUFFER_WRITE in your board config file?

If yes, then can you please try to explain  *why*  there  is  such  a
speed  difference?  In  general,  the CFI driver should be able to do
exactly the same what a custom flash driver can  do  -  if  there  is
anything missing, it should be added. Patches welcome.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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