[U-Boot-Users] bad flash write times with u-boot

Woodruff, Richard r-woodruff2 at ti.com
Tue Mar 8 20:49:01 CET 2005

Seems like I get about 100KB/s or 6000/minute using the CFI driver.  If
I don't using the buffering feature of the flash I get around 1M/m.

Are you using the buffer for programming?  Has your bus speed or timings
changed by the time the kernel gets at it.

I'll guess your just not enabling buffering and the kernel is, as that
is in line with what I see.  1M/m vs 6M/m for burn.

Richard W.

> -----Original Message-----
> From: u-boot-users-admin at lists.sourceforge.net [mailto:u-boot-users-
> admin at lists.sourceforge.net] On Behalf Of syoder at austin.rr.com
> Sent: Tuesday, March 08, 2005 1:37 PM
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] bad flash write times with u-boot
> We have a board with Intel Strata flash and are seeing flash write
> on the order of 1MB / _minute_ from U-boot.
> However, from Linux the same flash part can be written in the order of
> serveral MB / second.
> Does anyone out there know if the MB/min write times we are seeing are
> the ball park of expected/normal??
> Thanks,
> Stuart Yoder
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