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Subject[PATCH 46/62] Blackfin: fix command line corruption with DEBUG_DOUBLEFAULT
Date
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>
---
arch/blackfin/mach-common/head.S | 16 ++++++++--------
1 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S
index 01d62ff..f826f6b 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 */
--
1.6.3.1


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