Subject: BUG: Patch "Convert some mftb/mftbu into mfspr" breaks MPC885

From: leroy christophe <[email-masked]>
Date: Wed, 20 Nov 2013 11:21:49 +0100

Scott,

The patch "Convert some mftb/mftbu into mfspr" 
(beb2dc0a7a84be003ce54e98b95d65cc66e6e536) breaks startup on MPC885.

The CPU traps (SoftwareEmulation trap) at sched_clock() when trying to 
read TBU with mfspr.

Reverting the patch solves the issue.

What's the prefered way to fix this ?

Christophe