From: Robin Getz <robin.g...@analog.com>
Need to reload the loop counters to keep from corrupting hardware loops.
Signed-off-by: Robin Getz <robin.g...@analog.com>
Signed-off-by: Mike Frysinger <vap...@gentoo.org>
---
cpu/blackfin/interrupt.S | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/cpu/blackfin/interrupt.S b/cpu/blackfin/interrupt.S
index 71e0fc6..8c7a262 100644
--- a/cpu/blackfin/interrupt.S
+++ b/cpu/blackfin/interrupt.S
@@ -1,7 +1,7 @@
/*
* interrupt.S - trampoline default exceptions/interrupts to C handlers
*
- * Copyright (c) 2005-2007 Analog Devices Inc.
+ * Copyright (c) 2005-2009 Analog Devices Inc.
* Licensed under the GPL-2 or later.
*/
@@ -17,10 +17,19 @@ ENTRY(_trap)
sp.l = LO(L1_SRAM_SCRATCH_END - 20);
sp.h = HI(L1_SRAM_SCRATCH_END - 20);
SAVE_ALL_SYS
+
r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
sp += -12;
call _trap_c;
sp += 12;
+
+#if ANOMALY_05000257
+ R7 = LC0;
+ LC0 = R7;
+ R7 = LC1;
+ LC1 = R7;
+#endif
+
RESTORE_ALL_SYS
sp = CONFIG_BFIN_SCRATCH_REG;
rtx;
--
1.6.5.4
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