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Blackfin arch: fix bug - kernel build with write back policy fails to be booted up 

Make sure IFLUSH is not the last instruction in the hardware loop to avoid
infinite core stall.

The dcache/icache function that only gets used in writeback mode was putting
IFLUSH as the last instruction in the hardware loop ... we know from design
that this may often lead to inifite core stalling, so switch the FLUSH/IFLUSH
order.

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger 2008-10-28 12:29:26 +08:00 committed by Bryan Wu
parent 39e96c8835
commit 7f6b2e7b1f
1 changed files with 1 additions and 1 deletions
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arch/blackfin/mach-common/cache.S
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@ -67,7 +67,7 @@ ENDPROC(_blackfin_icache_flush_range)
/* Flush all cache lines assocoiated with this area of memory. */ /* Flush all cache lines assocoiated with this area of memory. */
ENTRY(_blackfin_icache_dcache_flush_range) ENTRY(_blackfin_icache_dcache_flush_range)
do_flush IFLUSH, FLUSH do_flush FLUSH, IFLUSH
ENDPROC(_blackfin_icache_dcache_flush_range) ENDPROC(_blackfin_icache_dcache_flush_range)
/* Throw away all D-cached data in specified region without any obligation to /* Throw away all D-cached data in specified region without any obligation to