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authorColin Cross <ccross@android.com>2010-04-25 00:29:07 -0700
committerDan Willemsen <dwillemsen@nvidia.com>2011-11-30 21:34:36 -0800
commitad117211ea3b94a22a8f0e8571403dabd93cfaa6 (patch)
treefc71242ee58e5aa1efc528109f292f30a91f13be /arch
parentcf742bbbdb55404cec10e8e8ed6949c897160f40 (diff)
[ARM] Add ARCH_PROVIDES_UDELAY config option
Change-Id: Ife690c9d055fc0f17a52d2b29048af5062a664a6 Signed-off-by: Colin Cross <ccross@android.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/Kconfig3
-rw-r--r--arch/arm/include/asm/delay.h4
-rw-r--r--arch/arm/lib/Makefile6
3 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3146ed3f6eca..82c6521d04a7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -186,6 +186,9 @@ config FIQ
config ARCH_MTD_XIP
bool
+config ARCH_PROVIDES_UDELAY
+ bool
+
config VECTORS_BASE
hex
default 0xffff0000 if MMU || CPU_HIGH_VECTOR
diff --git a/arch/arm/include/asm/delay.h b/arch/arm/include/asm/delay.h
index b2deda181549..57f1fa0e983b 100644
--- a/arch/arm/include/asm/delay.h
+++ b/arch/arm/include/asm/delay.h
@@ -8,6 +8,9 @@
#include <asm/param.h> /* HZ */
+#ifdef CONFIG_ARCH_PROVIDES_UDELAY
+#include <mach/delay.h>
+#else
extern void __delay(int loops);
/*
@@ -40,5 +43,6 @@ extern void __const_udelay(unsigned long);
__const_udelay((n) * ((2199023U*HZ)>>11))) : \
__udelay(n))
+#endif /* defined(ARCH_PROVIDES_UDELAY) */
#endif /* defined(_ARM_DELAY_H) */
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index cf73a7f742dd..775132a100f0 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -6,7 +6,7 @@
lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
csumpartialcopy.o csumpartialcopyuser.o clearbit.o \
- delay.o findbit.o memchr.o memcpy.o \
+ findbit.o memchr.o memcpy.o \
memmove.o memset.o memzero.o setbit.o \
strncpy_from_user.o strnlen_user.o \
strchr.o strrchr.o \
@@ -17,6 +17,10 @@ lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
mmu-y := clear_user.o copy_page.o getuser.o putuser.o
+ifneq ($(CONFIG_ARCH_PROVIDES_UDELAY),y)
+ lib-y += delay.o
+endif
+
# the code in uaccess.S is not preemption safe and
# probably faster on ARMv3 only
ifeq ($(CONFIG_PREEMPT),y)