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-rw-r--r--arch/sh/kernel/timers/timer-cmt.c63
-rw-r--r--arch/sh/kernel/timers/timer-mtu2.c62
2 files changed, 10 insertions, 115 deletions
diff --git a/arch/sh/kernel/timers/timer-cmt.c b/arch/sh/kernel/timers/timer-cmt.c
index 9eab395cd341..30687383d4b0 100644
--- a/arch/sh/kernel/timers/timer-cmt.c
+++ b/arch/sh/kernel/timers/timer-cmt.c
@@ -96,8 +96,7 @@ static unsigned long cmt_timer_get_offset(void)
return count;
}
-static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id,
- struct pt_regs *regs)
+static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id)
{
unsigned long timer_status;
@@ -114,7 +113,7 @@ static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id,
* locally disabled. -arca
*/
write_seqlock(&xtime_lock);
- handle_timer_tick(regs);
+ handle_timer_tick();
write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
@@ -123,62 +122,10 @@ static irqreturn_t cmt_timer_interrupt(int irq, void *dev_id,
static struct irqaction cmt_irq = {
.name = "timer",
.handler = cmt_timer_interrupt,
- .flags = SA_INTERRUPT,
+ .flags = IRQF_DISABLED,
.mask = CPU_MASK_NONE,
};
-/*
- * Hah! We'll see if this works (switching from usecs to nsecs).
- */
-static unsigned long cmt_timer_get_frequency(void)
-{
- u32 freq;
- struct timespec ts1, ts2;
- unsigned long diff_nsec;
- unsigned long factor;
-
- /* Setup the timer: We don't want to generate interrupts, just
- * have it count down at its natural rate.
- */
-
- ctrl_outw(ctrl_inw(CMT_CMSTR) & ~0x01, CMT_CMSTR);
- ctrl_outw(CMT_CMCSR_CALIB, CMT_CMCSR_0);
- ctrl_outw(0xffff, CMT_CMCOR_0);
- ctrl_outw(0xffff, CMT_CMCNT_0);
-
- rtc_sh_get_time(&ts2);
-
- do {
- rtc_sh_get_time(&ts1);
- } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
-
- /* actually start the timer */
- ctrl_outw(ctrl_inw(CMT_CMSTR) | 0x01, CMT_CMSTR);
-
- do {
- rtc_sh_get_time(&ts2);
- } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
-
- freq = 0xffff - ctrl_inw(CMT_CMCNT_0);
- if (ts2.tv_nsec < ts1.tv_nsec) {
- ts2.tv_nsec += 1000000000;
- ts2.tv_sec--;
- }
-
- diff_nsec = (ts2.tv_sec - ts1.tv_sec) * 1000000000 + (ts2.tv_nsec - ts1.tv_nsec);
-
- /* this should work well if the RTC has a precision of n Hz, where
- * n is an integer. I don't think we have to worry about the other
- * cases. */
- factor = (1000000000 + diff_nsec/2) / diff_nsec;
-
- if (factor * diff_nsec > 1100000000 ||
- factor * diff_nsec < 900000000)
- panic("weird RTC (diff_nsec %ld)", diff_nsec);
-
- return freq * factor;
-}
-
static void cmt_clk_init(struct clk *clk)
{
u8 divisor = CMT_CMCSR_INIT & 0x3;
@@ -245,12 +192,12 @@ struct sys_timer_ops cmt_timer_ops = {
.init = cmt_timer_init,
.start = cmt_timer_start,
.stop = cmt_timer_stop,
- .get_frequency = cmt_timer_get_frequency,
+#ifndef CONFIG_GENERIC_TIME
.get_offset = cmt_timer_get_offset,
+#endif
};
struct sys_timer cmt_timer = {
.name = "cmt",
.ops = &cmt_timer_ops,
};
-
diff --git a/arch/sh/kernel/timers/timer-mtu2.c b/arch/sh/kernel/timers/timer-mtu2.c
index 73a5ef3c457d..045b2aba13fa 100644
--- a/arch/sh/kernel/timers/timer-mtu2.c
+++ b/arch/sh/kernel/timers/timer-mtu2.c
@@ -98,8 +98,7 @@ static unsigned long mtu2_timer_get_offset(void)
return count;
}
-static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id,
- struct pt_regs *regs)
+static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id)
{
unsigned long timer_status;
@@ -110,7 +109,7 @@ static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id,
/* Do timer tick */
write_seqlock(&xtime_lock);
- handle_timer_tick(regs);
+ handle_timer_tick();
write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
@@ -119,62 +118,10 @@ static irqreturn_t mtu2_timer_interrupt(int irq, void *dev_id,
static struct irqaction mtu2_irq = {
.name = "timer",
.handler = mtu2_timer_interrupt,
- .flags = SA_INTERRUPT,
+ .flags = IRQF_DISABLED,
.mask = CPU_MASK_NONE,
};
-/*
- * Hah! We'll see if this works (switching from usecs to nsecs).
- */
-static unsigned long mtu2_timer_get_frequency(void)
-{
- u32 freq;
- struct timespec ts1, ts2;
- unsigned long diff_nsec;
- unsigned long factor;
-
- /* Setup the timer: We don't want to generate interrupts, just
- * have it count down at its natural rate.
- */
-
- ctrl_outb(ctrl_inb(MTU2_TSTR) & ~MTU2_TSTR_CST1, MTU2_TSTR);
- ctrl_outb(MTU2_TCR_CALIB, MTU2_TCR_1);
- ctrl_outb(ctrl_inb(MTU2_TIER_1) & ~MTU2_TIER_TGIEA, MTU2_TIER_1);
- ctrl_outw(0, MTU2_TCNT_1);
-
- rtc_get_time(&ts2);
-
- do {
- rtc_get_time(&ts1);
- } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
-
- /* actually start the timer */
- ctrl_outw(ctrl_inw(CMT_CMSTR) | 0x01, CMT_CMSTR);
-
- do {
- rtc_get_time(&ts2);
- } while (ts1.tv_nsec == ts2.tv_nsec && ts1.tv_sec == ts2.tv_sec);
-
- freq = ctrl_inw(MTU2_TCNT_0);
- if (ts2.tv_nsec < ts1.tv_nsec) {
- ts2.tv_nsec += 1000000000;
- ts2.tv_sec--;
- }
-
- diff_nsec = (ts2.tv_sec - ts1.tv_sec) * 1000000000 + (ts2.tv_nsec - ts1.tv_nsec);
-
- /* this should work well if the RTC has a precision of n Hz, where
- * n is an integer. I don't think we have to worry about the other
- * cases. */
- factor = (1000000000 + diff_nsec/2) / diff_nsec;
-
- if (factor * diff_nsec > 1100000000 ||
- factor * diff_nsec < 900000000)
- panic("weird RTC (diff_nsec %ld)", diff_nsec);
-
- return freq * factor;
-}
-
static unsigned int divisors[] = { 1, 4, 16, 64, 1, 1, 256 };
static void mtu2_clk_init(struct clk *clk)
@@ -250,8 +197,9 @@ struct sys_timer_ops mtu2_timer_ops = {
.init = mtu2_timer_init,
.start = mtu2_timer_start,
.stop = mtu2_timer_stop,
- .get_frequency = mtu2_timer_get_frequency,
+#ifndef CONFIG_GENERIC_TIME
.get_offset = mtu2_timer_get_offset,
+#endif
};
struct sys_timer mtu2_timer = {
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-20 00:56:48 +0000