microblaze: Clear print messages for DTB passing via r7

It is necessary to zeroed r7 when r7 points to bad
dtb - this caused that we have correct messages
about compiled-in dtb or passing via r7

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2009-06-22 12:31:55 +02:00
commit ea3fd1466f