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authorMike Frysinger <vapier@gentoo.org>2011-01-11 16:33:15 +0000
committerMike Frysinger <vapier@gentoo.org>2011-03-18 03:49:24 -0400
commitb5fc12df9039a9e6a2c5ae1fc0cee244b6aca8e2 (patch)
tree037e73020be971370ce2103c4500f6deef4fc297 /arch/blackfin
parent4c131c8c23eeb90d0fe93bd490ffd63ff0f97d10 (diff)
downloadblackbird-op-linux-b5fc12df9039a9e6a2c5ae1fc0cee244b6aca8e2.tar.gz
blackbird-op-linux-b5fc12df9039a9e6a2c5ae1fc0cee244b6aca8e2.zip
Blackfin: add bfin_write_{or,and} helpers
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/include/asm/def_LPBlackfin.h16
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/blackfin/include/asm/def_LPBlackfin.h b/arch/blackfin/include/asm/def_LPBlackfin.h
index e3f0f4c49819..7600fe0696af 100644
--- a/arch/blackfin/include/asm/def_LPBlackfin.h
+++ b/arch/blackfin/include/asm/def_LPBlackfin.h
@@ -58,14 +58,26 @@
({ BUG(); 0; }); \
})
#define bfin_write(addr, val) \
-({ \
+do { \
switch (sizeof(*(addr))) { \
case 1: bfin_write8(addr, val); break; \
case 2: bfin_write16(addr, val); break; \
case 4: bfin_write32(addr, val); break; \
default: BUG(); \
} \
-})
+} while (0)
+
+#define bfin_write_or(addr, bits) \
+do { \
+ void *__addr = (void *)(addr); \
+ bfin_write(__addr, bfin_read(__addr) | (bits)); \
+} while (0)
+
+#define bfin_write_and(addr, bits) \
+do { \
+ void *__addr = (void *)(addr); \
+ bfin_write(__addr, bfin_read(__addr) & (bits)); \
+} while (0)
#endif /* __ASSEMBLY__ */
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