ARM: sa11x0: neponset: provide function to manipulate NCR_0

Rather than having direct register accesses to NCR_0 scattered amongst
the code, provide a function instead.  This contains the necessary
race protection for this platform, ensuring that updates to this
register are safe.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-sa1100/include/mach/neponset.h b/arch/arm/mach-sa1100/include/mach/neponset.h
index ffe2bc45eed0..6032216e1830 100644
--- a/arch/arm/mach-sa1100/include/mach/neponset.h
+++ b/arch/arm/mach-sa1100/include/mach/neponset.h
@@ -71,4 +71,8 @@
 #define NCR_A0VPP               (1<<5)
 #define NCR_A1VPP               (1<<6)
 
+void neponset_ncr_frob(unsigned int, unsigned int);
+#define neponset_ncr_set(v)     neponset_ncr_frob(0, v)
+#define neponset_ncr_clear(v)   neponset_ncr_frob(v, 0)
+
 #endif