tree 0232758ddb50f2f8c75d467de0a049e85283a8b4
parent a005f19eff946454985785788c344f10616d571e
author Joe Hershberger <joe.hershberger@ni.com> 1345235800 -0500
committer Stefan Roese <sr@denx.de> 1346664267 +0200

cfi: Check for blank before erase

Added an optional check in the CFI driver to evaluate if the sector is
already blank before issuing an erase command.  Improves erase time by
over a factor of 10 if already blank.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Stefan Roese <sr@denx.de>