From 8af10b79877ff5dfd5c7b1928d57cf38483e819d Mon Sep 17 00:00:00 2001
From: Michael Hennerich <michael.hennerich@analog.com>
Date: Mon, 21 May 2007 18:09:09 +0800
Subject: Blackfin arch: Add Workaround for ANOMALY 05000257

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/blackfin/mach-common/entry.S | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'arch/blackfin/mach-common')

diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 8eb0a902348..e463733f5c7 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -181,6 +181,12 @@ ENTRY(_ex_single_step)
 
 _return_from_exception:
 	DEBUG_START_HWTRACE
+#ifdef ANOMALY_05000257
+	R7=LC0;
+	LC0=R7;
+	R7=LC1;
+	LC1=R7;
+#endif
 	(R7:6,P5:4) = [sp++];
 	ASTAT = [sp++];
 	sp = retn;
-- 
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