diff options
| author | Mike Frysinger <vapier.adi@gmail.com> | 2008-10-28 00:29:26 -0400 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-10-28 00:29:26 -0400 |
| commit | 7f6b2e7b1ff70bc60cedc9a00b01c1fad5c21371 (patch) | |
| tree | 469443387222a98a2d3ffe94a494577bd83f3c9b /arch | |
| parent | 39e96c8835c36b6867b4e18698b06746972cdfcc (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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/blackfin/mach-common/cache.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S index d6780b49524..a028e945041 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. */ |
| 69 | ENTRY(_blackfin_icache_dcache_flush_range) | 69 | ENTRY(_blackfin_icache_dcache_flush_range) |
| 70 | do_flush IFLUSH, FLUSH | 70 | do_flush FLUSH, IFLUSH |
| 71 | ENDPROC(_blackfin_icache_dcache_flush_range) | 71 | ENDPROC(_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 |