summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRobin Getz <robin.getz@analog.com>2010-02-25 18:16:52 (GMT)
committerMike Frysinger <vapier@gentoo.org>2010-03-09 05:30:53 (GMT)
commit2943bff69e3728cfd69841537120125f9373bb28 (patch)
tree4c46452a7533c999c93f567a0f1163ea0adadc68
parent6ba255f4a8a0785ea8a2b052837a7b91eeac1bb4 (diff)
downloadlinux-2943bff69e3728cfd69841537120125f9373bb28.tar.xz
Blackfin: fix anomaly 283 handling with exact hardware error
The exact hardware error handling code was added before the workaround for anomaly 283 which caused the anomaly to be triggered in some cases (an infinite core stall). So re-order the code to avoid this. Reported-by: Andrew Rook <andrew.rook@speakerbus.co.uk> Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
-rw-r--r--arch/blackfin/mach-common/entry.S4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 6c20044..a5847f5 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -482,6 +482,8 @@ ENTRY(_trap) /* Exception: 4th entry into system event table(supervisor mode)*/
[--sp] = ASTAT;
[--sp] = (R7:6,P5:4);
+ ANOMALY_283_315_WORKAROUND(p5, r7)
+
#ifdef CONFIG_EXACT_HWERR
/* Make sure all pending read/writes complete. This will ensure any
* accesses which could cause hardware errors completes, and signal
@@ -492,8 +494,6 @@ ENTRY(_trap) /* Exception: 4th entry into system event table(supervisor mode)*/
ssync;
#endif
- ANOMALY_283_315_WORKAROUND(p5, r7)
-
#ifdef CONFIG_DEBUG_DOUBLEFAULT
/*
* Save these registers, as they are only valid in exception context