MN10300: Add CPU register bits for AM34

Add CPU register declarations for the AM34 subarch.

Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 275963eeae13..eab0c2aa95cd 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -17,6 +17,7 @@ config AM33_3
 
 config AM34_2
         def_bool n
+        select MN10300_HAS_ATOMIC_OPS_UNIT
 
 config MMU
         def_bool y
@@ -124,6 +125,12 @@ config MN10300_CPU_AM33V2
 
 endchoice
 
+config MN10300_HAS_ATOMIC_OPS_UNIT
+        def_bool n
+        help
+          This should be enabled if the processor has an atomic ops unit
+          capable of doing LL/SC equivalent operations.
+
 config FPU
         bool "FPU present"
         default y