On Fri, Sep 14, 2001 at 11:22:30PM -0400, John Dorsey wrote:
> On Friday, September 14, 2001, at 06:00 PM, Erik Mouw wrote:
> > What's the point of turning on the MMU in the bootloader? There is
> > really no need to do that, it makes the bootloader unnecessary
> > complicated.
>
> Maybe this isn't relevant for most loaders, but JFFS replay performance
> was pretty horrible on bootldr without the MMU/caches.
Switching on the icache is enough to make JFFS fast. JFFS replay is a
CPU bound problem, not data bound. You really don't need to turn on the
MMU in a bootloader.
Erik
--
J.A.K. (Erik) Mouw, Information and Communication Theory Group, Department
of Electrical Engineering, Faculty of Information Technology and Systems,
Delft University of Technology, PO BOX 5031, 2600 GA Delft, The Netherlands
Phone: +31-15-2783635 Fax: +31-15-2781843 Email: [EMAIL PROTECTED]
WWW: http://www-ict.its.tudelft.nl/~erik/
_______________________________________________
http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm
Please visit the above address for information on this list.
