microblaze: Not to clear r7 after copying DTB to kernel

I can't clear r7 because if I do it I lose information
where DTB come from.

Signed-off-by: Michal Simek <monstr@monstr.eu>

diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index 815bcaa..3c4d4a2 100644 (file)
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -73,7 +73,6 @@ _copy_fdt:
        bgtid   r3, _copy_fdt /* loop for all entries */
        addik   r3, r3, -4 /* descrement loop */
 no_fdt_arg:
-       add     r7, r0, r0                      /* Clear r7, just to be sure */
 
 #ifdef CONFIG_MMU