Dear prakash bedge, In message <aanlktil9beksr6mocucbgkxhjn-vkkdoaemnhiyjq...@mail.gmail.com> you wrote: > > Flash chip I am using is S29GL512P and as per datasheet flash erase time is > 1024 Seconds and flash program time is 492 Seconds.
Be careful. 1024 s is chip erase time, but we use sector erase only, so it's only 3.5 seconds. Same for the 492 s - this is Chip Program Time which does not matter here. > But, in Uboot, I am seeing that most boards have configured > CONFIG_SYS_FLASH_ERASE_TOUT > to 240000 ms and CONFIG_SYS_FLASH_WRITE_TOUT to 200-400 ms range for > flash of size 1GB or moroe. > > Can anyone please tell what value I should use for my chip. The CFI driver accesses the flash in sectors only, so sector times apply, not chip times. 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: w...@denx.de Even if you aren't in doubt, consider the mental welfare of the per- son who has to maintain the code after you, and who will probably put parens in the wrong place. - Larry Wall in the perl man page _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot