[U-Boot] [PATCH] POST: Added ECC memory test for mpc83xx.

[Joakim Tjernlund]

>
> On Wed, Apr 7, 2010 at 6:10 PM, Timur Tabi <timur.tabi at gmail.com> wrote:
> > On Wed, Apr 7, 2010 at 9:47 AM, Michael Zaidman
> > <michael.zaidman at gmail.com> wrote:
> >
> >> The version #2 of the patch is located here
> >> http://lists.denx.de/pipermail/u-boot/2010-April/069579.html
> >
> > What is ppcDWstore(), and why do you use it sometimes instead of
> > __raw_writel()?  I see the code for ppcDWstore:
> >
> >        .globl  ppcDWstore
> > ppcDWstore:
> >        lfd     1, 0(r4)
> >        stfd    1, 0(r3)
> >        blr
> >
> > I just don't understand why it exists.
> >
>
> This is the fastest way to copy 64 bit words.

hmm, not all boards have a FPU(8xx and 832x). How are lfd and stfd handled
there?

  Jocke