d8e0364364
Add bindings to support DT discovery of the ARM Timer Watchdog (aka TWD). Only the timer side is converted by this patch. Acked-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
#ifndef __ASMARM_SMP_TWD_H
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#define __ASMARM_SMP_TWD_H
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#define TWD_TIMER_LOAD 0x00
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#define TWD_TIMER_COUNTER 0x04
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#define TWD_TIMER_CONTROL 0x08
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#define TWD_TIMER_INTSTAT 0x0C
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#define TWD_WDOG_LOAD 0x20
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#define TWD_WDOG_COUNTER 0x24
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#define TWD_WDOG_CONTROL 0x28
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#define TWD_WDOG_INTSTAT 0x2C
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#define TWD_WDOG_RESETSTAT 0x30
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#define TWD_WDOG_DISABLE 0x34
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#define TWD_TIMER_CONTROL_ENABLE (1 << 0)
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#define TWD_TIMER_CONTROL_ONESHOT (0 << 1)
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#define TWD_TIMER_CONTROL_PERIODIC (1 << 1)
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#define TWD_TIMER_CONTROL_IT_ENABLE (1 << 2)
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#include <linux/ioport.h>
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struct clock_event_device;
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extern void __iomem *twd_base;
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int twd_timer_setup(struct clock_event_device *);
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struct twd_local_timer {
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struct resource res[2];
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};
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#define DEFINE_TWD_LOCAL_TIMER(name,base,irq) \
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struct twd_local_timer name __initdata = { \
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.res = { \
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DEFINE_RES_MEM(base, 0x10), \
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DEFINE_RES_IRQ(irq), \
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}, \
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};
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int twd_local_timer_register(struct twd_local_timer *);
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#ifdef CONFIG_HAVE_ARM_TWD
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void twd_local_timer_of_register(void);
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#else
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static inline void twd_local_timer_of_register(void)
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{
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}
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#endif
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#endif
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