linux/arch/arm/include/asm/smp_twd.h
Marc Zyngier 81e46f7b6d ARM: smp_twd: add runtime registration support
Add support for the new registration interface to smp_twd.
Platforms can populate a struct twd_local_timer with MMIO
and IRQ resources, and then call twd_local_timer_register()
to have the timer registered with the core.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2012-03-13 13:27:50 +00:00

44 lines
980 B
C

#ifndef __ASMARM_SMP_TWD_H
#define __ASMARM_SMP_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)
#include <linux/ioport.h>
struct clock_event_device;
extern void __iomem *twd_base;
int twd_timer_setup(struct clock_event_device *);
struct twd_local_timer {
struct resource res[2];
};
#define DEFINE_TWD_LOCAL_TIMER(name,base,irq) \
struct twd_local_timer name __initdata = { \
.res = { \
DEFINE_RES_MEM(base, 0x10), \
DEFINE_RES_IRQ(irq), \
}, \
};
int twd_local_timer_register(struct twd_local_timer *);
#endif