Blackfin arch: SMP supporting patchset: Blackfin header files and machine common code

Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like

In this patch, we provide SMP extend to Blackfin header files
and machine common code

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/rwlock.h b/arch/blackfin/include/asm/rwlock.h
new file mode 100644
index 000000000000..4a724b378971
--- /dev/null
+++ b/arch/blackfin/include/asm/rwlock.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_BLACKFIN_RWLOCK_H
+#define _ASM_BLACKFIN_RWLOCK_H
+
+#define RW_LOCK_BIAS    0x01000000
+
+#endif