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Commit 2943bff6 authored by Robin Getz's avatar Robin Getz Committed by Mike Frysinger
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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: default avatarAndrew Rook <andrew.rook@speakerbus.co.uk>
Signed-off-by: default avatarRobin Getz <robin.getz@analog.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent 6ba255f4

arch/blackfin/mach-common/entry.S

+2 −2
Original line number Diff line number Diff line
@@ -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