[U-Boot] [PATCH V4 1/4] ARM: Define change_bit routine
Amit Virdi
amit.virdi at st.com
Fri May 18 08:00:10 CEST 2012
From: Vipin KUMAR <vipin.kumar at st.com>
change_bit routine is left implementation dependent until now.
This routine, which is basically a wrapper over __change_bit, is now defined for
arm platforms in asm-arm/bitops.h
The Flexible Static memory controller driver, placed in
mtd/nand/fsmc_nand.c needs this routine. FSMC is a memory controller
peripheral from ST. The new driver implements the NAND interface part
of the peripheral.
Signed-off-by: Vipin Kumar <vipin.kumar at st.com>
Signed-off-by: Amit Virdi <amit.virdi at st.com>
---
arch/arm/include/asm/bitops.h | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index 879e20e..7fe9c6d 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -29,8 +29,6 @@ extern void set_bit(int nr, volatile void * addr);
extern void clear_bit(int nr, volatile void * addr);
-extern void change_bit(int nr, volatile void * addr);
-
static inline void __change_bit(int nr, volatile void *addr)
{
unsigned long mask = BIT_MASK(nr);
@@ -39,6 +37,11 @@ static inline void __change_bit(int nr, volatile void *addr)
*p ^= mask;
}
+static inline void change_bit(int nr, volatile void *addr)
+{
+ __change_bit(nr, addr);
+}
+
static inline int __test_and_set_bit(int nr, volatile void *addr)
{
unsigned long mask = BIT_MASK(nr);
--
1.7.2.2
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