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authorMike Frysinger <vapier.adi@gmail.com>2008-10-28 00:29:26 -0400
committerBryan Wu <cooloney@kernel.org>2008-10-28 00:29:26 -0400
commit7f6b2e7b1ff70bc60cedc9a00b01c1fad5c21371 (patch)
tree469443387222a98a2d3ffe94a494577bd83f3c9b
parent39e96c8835c36b6867b4e18698b06746972cdfcc (diff)
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>
-rw-r--r--arch/blackfin/mach-common/cache.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
index d6780b495241..a028e9450419 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -67,7 +67,7 @@ ENDPROC(_blackfin_icache_flush_range)
67 67
68/* Flush all cache lines assocoiated with this area of memory. */ 68/* Flush all cache lines assocoiated with this area of memory. */
69ENTRY(_blackfin_icache_dcache_flush_range) 69ENTRY(_blackfin_icache_dcache_flush_range)
70 do_flush IFLUSH, FLUSH 70 do_flush FLUSH, IFLUSH
71ENDPROC(_blackfin_icache_dcache_flush_range) 71ENDPROC(_blackfin_icache_dcache_flush_range)
72 72
73/* Throw away all D-cached data in specified region without any obligation to 73/* Throw away all D-cached data in specified region without any obligation to