[U-Boot] [PATCH] arm: add 64-64 bit divider

Mike Frysinger vapier at gentoo.org
Wed Aug 31 18:05:29 CEST 2011


On Wednesday, August 31, 2011 11:33:59 Marek Vasut wrote:
> On Wednesday, August 31, 2011 05:27:46 PM Mike Frysinger wrote:
> > On Wednesday, August 31, 2011 11:11:00 Marek Vasut wrote:
> > > On Wednesday, August 31, 2011 04:32:52 PM Mike Frysinger wrote:
> > > > On Wednesday, August 31, 2011 06:38:50 Che-Liang Chiou wrote:
> > > > > This patch adds a 64-64 bit divider that supports ARMv4 and above.
> > > > 
> > > > why ?  if you're doing 64 bit divides, chances are you're doing
> > > > something fundamentally wrong.  perhaps you should fix that instead.
> > > 
> > > Oh come on Mike, what about too big NAND memories ?
> > 
> > Linux hasnt had a problem supporting large NAND without a 64bit divide
> > routine.  why are we special ?
> 
> Because someone (?) has to fix the code that uses do_div() ;-)

sure ... the guy with the problem gets to post the fix :)
-mike
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