aboutsummaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/kernel/Makefile2
-rw-r--r--arch/i386/kernel/i8253.c32
-rw-r--r--arch/i386/kernel/time.c5
-rw-r--r--arch/i386/kernel/timers/timer_pit.c13
4 files changed, 33 insertions, 19 deletions
diff --git a/arch/i386/kernel/Makefile b/arch/i386/kernel/Makefile
index 96fb8a020af2..4142d69a5336 100644
--- a/arch/i386/kernel/Makefile
+++ b/arch/i386/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.lds
7obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \ 7obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \
8 ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \ 8 ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \
9 pci-dma.o i386_ksyms.o i387.o bootflag.o \ 9 pci-dma.o i386_ksyms.o i387.o bootflag.o \
10 quirks.o i8237.o topology.o alternative.o 10 quirks.o i8237.o topology.o alternative.o i8253.o
11 11
12obj-y += cpu/ 12obj-y += cpu/
13obj-y += timers/ 13obj-y += timers/
diff --git a/arch/i386/kernel/i8253.c b/arch/i386/kernel/i8253.c
new file mode 100644
index 000000000000..29cb2eb34363
--- /dev/null
+++ b/arch/i386/kernel/i8253.c
@@ -0,0 +1,32 @@
1/*
2 * i8253.c 8253/PIT functions
3 *
4 */
5#include <linux/spinlock.h>
6#include <linux/jiffies.h>
7#include <linux/sysdev.h>
8#include <linux/module.h>
9#include <linux/init.h>
10
11#include <asm/smp.h>
12#include <asm/delay.h>
13#include <asm/i8253.h>
14#include <asm/io.h>
15
16#include "io_ports.h"
17
18DEFINE_SPINLOCK(i8253_lock);
19EXPORT_SYMBOL(i8253_lock);
20
21void setup_pit_timer(void)
22{
23 unsigned long flags;
24
25 spin_lock_irqsave(&i8253_lock, flags);
26 outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */
27 udelay(10);
28 outb_p(LATCH & 0xff , PIT_CH0); /* LSB */
29 udelay(10);
30 outb(LATCH >> 8 , PIT_CH0); /* MSB */
31 spin_unlock_irqrestore(&i8253_lock, flags);
32}
diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c
index 9d3074759856..796e5faa6ca7 100644
--- a/arch/i386/kernel/time.c
+++ b/arch/i386/kernel/time.c
@@ -82,11 +82,6 @@ extern unsigned long wall_jiffies;
82DEFINE_SPINLOCK(rtc_lock); 82DEFINE_SPINLOCK(rtc_lock);
83EXPORT_SYMBOL(rtc_lock); 83EXPORT_SYMBOL(rtc_lock);
84 84
85#include <asm/i8253.h>
86
87DEFINE_SPINLOCK(i8253_lock);
88EXPORT_SYMBOL(i8253_lock);
89
90struct timer_opts *cur_timer __read_mostly = &timer_none; 85struct timer_opts *cur_timer __read_mostly = &timer_none;
91 86
92/* 87/*
diff --git a/arch/i386/kernel/timers/timer_pit.c b/arch/i386/kernel/timers/timer_pit.c
index b9b6bd56b9ba..44cbdf9bda9d 100644
--- a/arch/i386/kernel/timers/timer_pit.c
+++ b/arch/i386/kernel/timers/timer_pit.c
@@ -162,16 +162,3 @@ struct init_timer_opts __initdata timer_pit_init = {
162 .init = init_pit, 162 .init = init_pit,
163 .opts = &timer_pit, 163 .opts = &timer_pit,
164}; 164};
165
166void setup_pit_timer(void)
167{
168 unsigned long flags;
169
170 spin_lock_irqsave(&i8253_lock, flags);
171 outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */
172 udelay(10);
173 outb_p(LATCH & 0xff , PIT_CH0); /* LSB */
174 udelay(10);
175 outb(LATCH >> 8 , PIT_CH0); /* MSB */
176 spin_unlock_irqrestore(&i8253_lock, flags);
177}