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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-05-16 12:14:21 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-05-17 19:16:41 +0100
commitf32f4ce25745209f16a5a6cef7442144b596c68a (patch)
tree76083f10ee56c82177669bb100358ea2818f8f5a /arch/arm/include
parenta8cbcd92bd4bf893085eddf7f58e63ea98503d94 (diff)
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[ARM] smp: allow re-use of realview localtimer TWD support
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/hardware/arm_twd.h21
-rw-r--r--arch/arm/include/asm/localtimer.h12
-rw-r--r--arch/arm/include/asm/smp_twd.h12
3 files changed, 24 insertions, 21 deletions
diff --git a/arch/arm/include/asm/hardware/arm_twd.h b/arch/arm/include/asm/hardware/arm_twd.h
deleted file mode 100644
index e521b70713c8..000000000000
--- a/arch/arm/include/asm/hardware/arm_twd.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef __ASM_HARDWARE_TWD_H
-#define __ASM_HARDWARE_TWD_H
-
-#define TWD_TIMER_LOAD 0x00
-#define TWD_TIMER_COUNTER 0x04
-#define TWD_TIMER_CONTROL 0x08
-#define TWD_TIMER_INTSTAT 0x0C
-
-#define TWD_WDOG_LOAD 0x20
-#define TWD_WDOG_COUNTER 0x24
-#define TWD_WDOG_CONTROL 0x28
-#define TWD_WDOG_INTSTAT 0x2C
-#define TWD_WDOG_RESETSTAT 0x30
-#define TWD_WDOG_DISABLE 0x34
-
-#define TWD_TIMER_CONTROL_ENABLE (1 << 0)
-#define TWD_TIMER_CONTROL_ONESHOT (0 << 1)
-#define TWD_TIMER_CONTROL_PERIODIC (1 << 1)
-#define TWD_TIMER_CONTROL_IT_ENABLE (1 << 2)
-
-#endif
diff --git a/arch/arm/include/asm/localtimer.h b/arch/arm/include/asm/localtimer.h
index 3f8c9ebb646c..50c7e7cfd670 100644
--- a/arch/arm/include/asm/localtimer.h
+++ b/arch/arm/include/asm/localtimer.h
@@ -24,6 +24,16 @@ asmlinkage void do_local_timer(struct pt_regs *);
#ifdef CONFIG_LOCAL_TIMERS
+
+#ifdef CONFIG_HAVE_ARM_TWD
+
+#include "smp_twd.h"
+
+#define local_timer_ack() twd_timer_ack()
+#define local_timer_stop() twd_timer_stop()
+
+#else
+
/*
* Platform provides this to acknowledge a local timer IRQ.
* Returns true if the local timer IRQ is to be processed.
@@ -35,6 +45,8 @@ int local_timer_ack(void);
*/
void local_timer_stop(void);
+#endif
+
/*
* Setup a local timer interrupt for a CPU.
*/
diff --git a/arch/arm/include/asm/smp_twd.h b/arch/arm/include/asm/smp_twd.h
new file mode 100644
index 000000000000..7be0978b2625
--- /dev/null
+++ b/arch/arm/include/asm/smp_twd.h
@@ -0,0 +1,12 @@
+#ifndef __ASMARM_SMP_TWD_H
+#define __ASMARM_SMP_TWD_H
+
+struct clock_event_device;
+
+extern void __iomem *twd_base;
+
+void twd_timer_stop(void);
+int twd_timer_ack(void);
+void twd_timer_setup(struct clock_event_device *);
+
+#endif
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