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-rw-r--r--arch/mips/jazz/irq.c48
-rw-r--r--arch/mips/jazz/setup.c7
2 files changed, 48 insertions, 7 deletions
diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c
index 56235412cbb7..835b056cea36 100644
--- a/arch/mips/jazz/irq.c
+++ b/arch/mips/jazz/irq.c
@@ -6,6 +6,7 @@
6 * Copyright (C) 1992 Linus Torvalds 6 * Copyright (C) 1992 Linus Torvalds
7 * Copyright (C) 1994 - 2001, 2003 Ralf Baechle 7 * Copyright (C) 1994 - 2001, 2003 Ralf Baechle
8 */ 8 */
9#include <linux/clockchips.h>
9#include <linux/init.h> 10#include <linux/init.h>
10#include <linux/interrupt.h> 11#include <linux/interrupt.h>
11#include <linux/kernel.h> 12#include <linux/kernel.h>
@@ -105,3 +106,50 @@ asmlinkage void plat_irq_dispatch(void)
105 panic("Unimplemented loc_no_irq handler"); 106 panic("Unimplemented loc_no_irq handler");
106 } 107 }
107} 108}
109
110static void r4030_set_mode(enum clock_event_mode mode,
111 struct clock_event_device *evt)
112{
113 /* Nothing to do ... */
114}
115
116struct clock_event_device r4030_clockevent = {
117 .name = "r4030",
118 .features = CLOCK_EVT_FEAT_PERIODIC,
119 .rating = 100,
120 .irq = JAZZ_TIMER_IRQ,
121 .cpumask = CPU_MASK_CPU0,
122 .set_mode = r4030_set_mode,
123};
124
125static irqreturn_t r4030_timer_interrupt(int irq, void *dev_id)
126{
127 r4030_clockevent.event_handler(&r4030_clockevent);
128
129 return IRQ_HANDLED;
130}
131
132static struct irqaction r4030_timer_irqaction = {
133 .handler = r4030_timer_interrupt,
134 .flags = IRQF_DISABLED,
135 .mask = CPU_MASK_CPU0,
136 .name = "timer",
137};
138
139void __init plat_timer_setup(struct irqaction *ignored)
140{
141 struct irqaction *irq = &r4030_timer_irqaction;
142
143 BUG_ON(HZ != 100);
144
145 /*
146 * Set clock to 100Hz.
147 *
148 * The R4030 timer receives an input clock of 1kHz which is divieded by
149 * a programmable 4-bit divider. This makes it fairly inflexible.
150 */
151 r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);
152 setup_irq(JAZZ_TIMER_IRQ, irq);
153
154 clockevents_register_device(&r4030_clockevent);
155}
diff --git a/arch/mips/jazz/setup.c b/arch/mips/jazz/setup.c
index 5c6271ab927f..fa890df36589 100644
--- a/arch/mips/jazz/setup.c
+++ b/arch/mips/jazz/setup.c
@@ -39,13 +39,6 @@ extern asmlinkage void jazz_handle_int(void);
39 39
40extern void jazz_machine_restart(char *command); 40extern void jazz_machine_restart(char *command);
41 41
42void __init plat_timer_setup(struct irqaction *irq)
43{
44 /* set the clock to 100 Hz */
45 r4030_write_reg32(JAZZ_TIMER_INTERVAL, 9);
46 setup_irq(JAZZ_TIMER_IRQ, irq);
47}
48
49static struct resource jazz_io_resources[] = { 42static struct resource jazz_io_resources[] = {
50 { 43 {
51 .start = 0x00, 44 .start = 0x00,