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Blackfin: fix anomaly 283 handling with exact hardware error

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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>
This commit is contained in:
Robin Getz 2010-02-25 18:16:52 +00:00 committed by Mike Frysinger
parent 6ba255f4a8
commit 2943bff69e
1 changed files with 2 additions and 2 deletions
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4
arch/blackfin/mach-common/entry.S
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@ -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