[PATCH] ARM: fixup irqflags breakage after ARM genirq merge
[linux-3.10.git] / arch / arm / mach-lh7a40x / time.c
1 /*
2  *  arch/arm/mach-lh7a40x/time.c
3  *
4  *  Copyright (C) 2004 Logic Product Development
5  *
6  *  This program is free software; you can redistribute it and/or
7  *  modify it under the terms of the GNU General Public License
8  *  version 2 as published by the Free Software Foundation.
9  *
10  */
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/interrupt.h>
14 #include <linux/irq.h>
15 #include <linux/time.h>
16
17 #include <asm/hardware.h>
18 #include <asm/io.h>
19 #include <asm/irq.h>
20 #include <asm/leds.h>
21
22 #include <asm/mach/time.h>
23 #include "common.h"
24
25 #if HZ < 100
26 # define TIMER_CONTROL  TIMER_CONTROL2
27 # define TIMER_LOAD     TIMER_LOAD2
28 # define TIMER_CONSTANT (508469/HZ)
29 # define TIMER_MODE     (TIMER_C_ENABLE | TIMER_C_PERIODIC | TIMER_C_508KHZ)
30 # define TIMER_EOI      TIMER_EOI2
31 # define TIMER_IRQ      IRQ_T2UI
32 #else
33 # define TIMER_CONTROL  TIMER_CONTROL3
34 # define TIMER_LOAD     TIMER_LOAD3
35 # define TIMER_CONSTANT (3686400/HZ)
36 # define TIMER_MODE     (TIMER_C_ENABLE | TIMER_C_PERIODIC)
37 # define TIMER_EOI      TIMER_EOI3
38 # define TIMER_IRQ      IRQ_T3UI
39 #endif
40
41 static irqreturn_t
42 lh7a40x_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
43 {
44         write_seqlock(&xtime_lock);
45
46         TIMER_EOI = 0;
47         timer_tick(regs);
48
49         write_sequnlock(&xtime_lock);
50
51         return IRQ_HANDLED;
52 }
53
54 static struct irqaction lh7a40x_timer_irq = {
55         .name           = "LHA740x Timer Tick",
56         .flags          = IRQF_DISABLED | IRQF_TIMER,
57         .handler        = lh7a40x_timer_interrupt,
58 };
59
60 static void __init lh7a40x_timer_init (void)
61 {
62                                 /* Stop/disable all timers */
63         TIMER_CONTROL1 = 0;
64         TIMER_CONTROL2 = 0;
65         TIMER_CONTROL3 = 0;
66
67         setup_irq (TIMER_IRQ, &lh7a40x_timer_irq);
68
69         TIMER_LOAD = TIMER_CONSTANT;
70         TIMER_CONTROL = TIMER_MODE;
71 }
72
73 struct sys_timer lh7a40x_timer = {
74         .init           = &lh7a40x_timer_init,
75 };