Looking at this code at line 78 (in 3.17 kernel) it has:
mfs r1, rmsr
msrclr r8, 0
cmpu r8, r8, r1
But as far as I can see the result of that comparison is never used -
the comments state it is to test if the msrclr instruction is
enabled.
Haven't posted a patch because I am using the code to understand how
to write my own boot code for a very specific Microblaze application -
but perhaps someone with real expertise could look and/or tell me I'm
wrong?
Cheers
Adrian
(apologies to Michal Simek for getting this twice)