Blackfin: fix command line corruption with DEBUG_DOUBLEFAULT

Commit 6b3087c6 (which introduced Blackfin SMP) broke command line passing
when the DEBUG_DOUBLEFAULT config option was enabled.  Switch the code to
using a scratch register and not R7 which holds the command line.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 8 insertions, 8 deletions

diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index 01d62ff3cd28..f826f6b9f917 100644
--- a/arch/blackfin/mach-common/head.S
+++ b/arch/blackfin/mach-common/head.S
@@ -124,25 +124,25 @@ ENTRY(__start)
          * below
          */
         GET_PDA(p0, r0);
-        r7 = [p0 + PDA_RETX];
+        r6 = [p0 + PDA_RETX];
         p1.l = _init_saved_retx;
         p1.h = _init_saved_retx;
-        [p1] = r7;
+        [p1] = r6;
 
-        r7 = [p0 + PDA_DCPLB];
+        r6 = [p0 + PDA_DCPLB];
         p1.l = _init_saved_dcplb_fault_addr;
         p1.h = _init_saved_dcplb_fault_addr;
-        [p1] = r7;
+        [p1] = r6;
 
-        r7 = [p0 + PDA_ICPLB];
+        r6 = [p0 + PDA_ICPLB];
         p1.l = _init_saved_icplb_fault_addr;
         p1.h = _init_saved_icplb_fault_addr;
-        [p1] = r7;
+        [p1] = r6;
 
-        r7 = [p0 + PDA_SEQSTAT];
+        r6 = [p0 + PDA_SEQSTAT];
         p1.l = _init_saved_seqstat;
         p1.h = _init_saved_seqstat;
-        [p1] = r7;
+        [p1] = r6;
 #endif
 
         /* Initialize stack pointer */