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m68knommu: cleanup m68knommu timer code

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Reduce the function pointer mess of the m68knommu timer code by calling
directly to the local hardware's timer setup, and expose the local
common timer interrupt handler to the lower level hardware timer.

Ultimately this will save definitions of all these functions across all
the platform code to setup the function pointers (which for any given
m68knommu CPU family member can be only one set of hardware timer
functions).

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Greg Ungerer 2007-10-23 14:37:54 +10:00 committed by Linus Torvalds
parent 49aa49bfd4
commit 2f2c267989
15 changed files with 30 additions and 138 deletions
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9
arch/m68knommu/kernel/setup.c
View File

@ -273,12 +273,3 @@ struct seq_operations cpuinfo_op = {
.show = show_cpuinfo,
};
void arch_gettod(int *year, int *mon, int *day, int *hour,
int *min, int *sec)
{
if (mach_gettod)
mach_gettod(year, mon, day, hour, min, sec);
else
*year = *mon = *day = *hour = *min = *sec = 0;
}

22
arch/m68knommu/kernel/time.c
View File

@ -27,7 +27,6 @@
#define TICK_SIZE (tick_nsec / 1000)
static inline int set_rtc_mmss(unsigned long nowtime)
{
if (mach_set_clock_mmss)
@ -39,15 +38,11 @@ static inline int set_rtc_mmss(unsigned long nowtime)
* timer_interrupt() needs to keep up the real-time clock,
* as well as call the "do_timer()" routine every clocktick
*/
static irqreturn_t timer_interrupt(int irq, void *dummy)
irqreturn_t arch_timer_interrupt(int irq, void *dummy)
{
/* last time the cmos clock got updated */
static long last_rtc_update=0;
/* may need to kick the hardware timer */
if (mach_tick)
mach_tick();
write_seqlock(&xtime_lock);
do_timer(1);
@ -103,10 +98,10 @@ void time_init(void)
{
unsigned int year, mon, day, hour, min, sec;
extern void arch_gettod(int *year, int *mon, int *day, int *hour,
int *min, int *sec);
arch_gettod(&year, &mon, &day, &hour, &min, &sec);
if (mach_gettod)
mach_gettod(&year, &mon, &day, &hour, &min, &sec);
else
year = mon = day = hour = min = sec = 0;
if ((year += 1900) < 1970)
year += 100;
@ -114,7 +109,7 @@ void time_init(void)
xtime.tv_nsec = 0;
wall_to_monotonic.tv_sec = -xtime.tv_sec;
mach_sched_init(timer_interrupt);
hw_timer_init();
}
/*
@ -128,7 +123,7 @@ void do_gettimeofday(struct timeval *tv)
do {
seq = read_seqbegin_irqsave(&xtime_lock, flags);
usec = mach_gettimeoffset ? mach_gettimeoffset() : 0;
usec = hw_timer_offset();
sec = xtime.tv_sec;
usec += (xtime.tv_nsec / 1000);
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
@ -160,8 +155,7 @@ int do_settimeofday(struct timespec *tv)
* Discover what correction gettimeofday
* would have done, and then undo it!
*/
if (mach_gettimeoffset)
nsec -= (mach_gettimeoffset() * 1000);
nsec -= (hw_timer_offset() * 1000);
wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);

9
arch/m68knommu/platform/5206/config.c
View File

@ -10,13 +10,10 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
@ -25,9 +22,6 @@
/***************************************************************************/
void coldfire_tick(void);
void coldfire_timer_init(irq_handler_t handler);
unsigned long coldfire_timer_offset(void);
void coldfire_reset(void);
/***************************************************************************/
@ -97,9 +91,6 @@ int mcf_timerirqpending(int timer)
void config_BSP(char *commandp, int size)
{
mcf_setimr(MCFSIM_IMR_MASKALL);
mach_sched_init = coldfire_timer_init;
mach_tick = coldfire_tick;
mach_gettimeoffset = coldfire_timer_offset;
mach_reset = coldfire_reset;
}

10
arch/m68knommu/platform/5206e/config.c
View File

@ -9,23 +9,16 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
/***************************************************************************/
void coldfire_tick(void);
void coldfire_timer_init(irq_handler_t handler);
unsigned long coldfire_timer_offset(void);
void coldfire_reset(void);
/***************************************************************************/
@ -102,9 +95,6 @@ void config_BSP(char *commandp, int size)
commandp[size-1] = 0;
#endif /* CONFIG_NETtel */
mach_sched_init = coldfire_timer_init;
mach_tick = coldfire_tick;
mach_gettimeoffset = coldfire_timer_offset;
mach_reset = coldfire_reset;
}

8
arch/m68knommu/platform/520x/config.c
View File

@ -27,9 +27,6 @@ unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
/***************************************************************************/
void coldfire_pit_tick(void);
void coldfire_pit_init(irq_handler_t handler);
unsigned long coldfire_pit_offset(void);
void coldfire_reset(void);
/***************************************************************************/
@ -47,10 +44,7 @@ void mcf_autovector(unsigned int vec)
void config_BSP(char *commandp, int size)
{
mach_sched_init = coldfire_pit_init;
mach_tick = coldfire_pit_tick;
mach_gettimeoffset = coldfire_pit_offset;
mach_reset = coldfire_reset;
mach_reset = coldfire_reset;
}
/***************************************************************************/

8
arch/m68knommu/platform/523x/config.c
View File

@ -13,12 +13,10 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
@ -26,9 +24,6 @@
/***************************************************************************/
void coldfire_pit_tick(void);
void coldfire_pit_init(irq_handler_t handler);
unsigned long coldfire_pit_offset(void);
void coldfire_reset(void);
/***************************************************************************/
@ -62,9 +57,6 @@ void mcf_autovector(unsigned int vec)
void config_BSP(char *commandp, int size)
{
mcf_disableall();
mach_sched_init = coldfire_pit_init;
mach_tick = coldfire_pit_tick;
mach_gettimeoffset = coldfire_pit_offset;
mach_reset = coldfire_reset;
}

10
arch/m68knommu/platform/5249/config.c
View File

@ -9,24 +9,17 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
/***************************************************************************/
void coldfire_tick(void);
void coldfire_timer_init(irq_handler_t handler);
unsigned long coldfire_timer_offset(void);
void coldfire_reset(void);
/***************************************************************************/
@ -95,9 +88,6 @@ int mcf_timerirqpending(int timer)
void config_BSP(char *commandp, int size)
{
mcf_setimr(MCFSIM_IMR_MASKALL);
mach_sched_init = coldfire_timer_init;
mach_tick = coldfire_tick;
mach_gettimeoffset = coldfire_timer_offset;
mach_reset = coldfire_reset;
}

10
arch/m68knommu/platform/5272/config.c
View File

@ -10,24 +10,17 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
/***************************************************************************/
void coldfire_tick(void);
void coldfire_timer_init(irq_handler_t handler);
unsigned long coldfire_timer_offset(void);
void coldfire_reset(void);
extern unsigned int mcf_timervector;
@ -128,9 +121,6 @@ void config_BSP(char *commandp, int size)
mcf_timervector = 69;
mcf_profilevector = 70;
mach_sched_init = coldfire_timer_init;
mach_tick = coldfire_tick;
mach_gettimeoffset = coldfire_timer_offset;
mach_reset = coldfire_reset;
}

8
arch/m68knommu/platform/527x/config.c
View File

@ -13,12 +13,10 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
@ -26,9 +24,6 @@
/***************************************************************************/
void coldfire_pit_tick(void);
void coldfire_pit_init(irq_handler_t handler);
unsigned long coldfire_pit_offset(void);
void coldfire_reset(void);
/***************************************************************************/
@ -62,9 +57,6 @@ void mcf_autovector(unsigned int vec)
void config_BSP(char *commandp, int size)
{
mcf_disableall();
mach_sched_init = coldfire_pit_init;
mach_tick = coldfire_pit_tick;
mach_gettimeoffset = coldfire_pit_offset;
mach_reset = coldfire_reset;
}

8
arch/m68knommu/platform/528x/config.c
View File

@ -13,12 +13,10 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
@ -26,9 +24,6 @@
/***************************************************************************/
void coldfire_pit_tick(void);
void coldfire_pit_init(irq_handler_t handler);
unsigned long coldfire_pit_offset(void);
void coldfire_reset(void);
/***************************************************************************/
@ -62,9 +57,6 @@ void mcf_autovector(unsigned int vec)
void config_BSP(char *commandp, int size)
{
mcf_disableall();
mach_sched_init = coldfire_pit_init;
mach_tick = coldfire_pit_tick;
mach_gettimeoffset = coldfire_pit_offset;
mach_reset = coldfire_reset;
}

10
arch/m68knommu/platform/5307/config.c
View File

@ -10,25 +10,18 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
#include <asm/mcfwdebug.h>
/***************************************************************************/
void coldfire_tick(void);
void coldfire_timer_init(irq_handler_t handler);
unsigned long coldfire_timer_offset(void);
void coldfire_reset(void);
extern unsigned int mcf_timervector;
@ -122,9 +115,6 @@ void config_BSP(char *commandp, int size)
mcf_timerlevel = 6;
#endif
mach_sched_init = coldfire_timer_init;
mach_tick = coldfire_tick;
mach_gettimeoffset = coldfire_timer_offset;
mach_reset = coldfire_reset;
#ifdef MCF_BDM_DISABLE

15
arch/m68knommu/platform/5307/pit.c
View File

@ -17,6 +17,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/coldfire.h>
#include <asm/mcfpit.h>
@ -31,28 +32,30 @@
/***************************************************************************/
void coldfire_pit_tick(void)
static irqreturn_t hw_tick(int irq, void *dummy)
{
unsigned short pcsr;
/* Reset the ColdFire timer */
pcsr = __raw_readw(TA(MCFPIT_PCSR));
__raw_writew(pcsr | MCFPIT_PCSR_PIF, TA(MCFPIT_PCSR));
return arch_timer_interrupt(irq, dummy);
}
/***************************************************************************/
static struct irqaction coldfire_pit_irq = {
.name = "timer",
.flags = IRQF_DISABLED | IRQF_TIMER,
.name = "timer",
.flags = IRQF_DISABLED | IRQF_TIMER,
.handler = hw_tick,
};
void coldfire_pit_init(irq_handler_t handler)
void hw_timer_init(void)
{
volatile unsigned char *icrp;
volatile unsigned long *imrp;
coldfire_pit_irq.handler = handler;
setup_irq(MCFINT_VECBASE + MCFINT_PIT1, &coldfire_pit_irq);
icrp = (volatile unsigned char *) (MCF_IPSBAR + MCFICM_INTC0 +
@ -71,7 +74,7 @@ void coldfire_pit_init(irq_handler_t handler)
/***************************************************************************/
unsigned long coldfire_pit_offset(void)
unsigned long hw_timer_offset(void)
{
volatile unsigned long *ipr;
unsigned long pmr, pcntr, offset;

21
arch/m68knommu/platform/5307/timers.c
View File

@ -9,10 +9,9 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/io.h>
#include <asm/traps.h>
@ -54,24 +53,28 @@ extern int mcf_timerirqpending(int timer);
/***************************************************************************/
void coldfire_tick(void)
static irqreturn_t hw_tick(int irq, void *dummy)
{
/* Reset the ColdFire timer */
__raw_writeb(MCFTIMER_TER_CAP | MCFTIMER_TER_REF, TA(MCFTIMER_TER));
return arch_timer_interrupt(irq, dummy);
}
/***************************************************************************/
static struct irqaction coldfire_timer_irq = {
.name = "timer",
.flags = IRQF_DISABLED | IRQF_TIMER,
.name = "timer",
.flags = IRQF_DISABLED | IRQF_TIMER,
.handler = hw_tick,
};
/***************************************************************************/
static int ticks_per_intr;
void coldfire_timer_init(irq_handler_t handler)
void hw_timer_init(void)
{
coldfire_timer_irq.handler = handler;
setup_irq(mcf_timervector, &coldfire_timer_irq);
__raw_writew(MCFTIMER_TMR_DISABLE, TA(MCFTIMER_TMR));
@ -89,7 +92,7 @@ void coldfire_timer_init(irq_handler_t handler)
/***************************************************************************/
unsigned long coldfire_timer_offset(void)
unsigned long hw_timer_offset(void)
{
unsigned long tcn, offset;

10
arch/m68knommu/platform/532x/config.c
View File

@ -18,25 +18,18 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
#include <asm/mcfwdebug.h>
/***************************************************************************/
void coldfire_tick(void);
void coldfire_timer_init(irq_handler_t handler);
unsigned long coldfire_timer_offset(void);
void coldfire_reset(void);
extern unsigned int mcf_timervector;
@ -104,9 +97,6 @@ void config_BSP(char *commandp, int size)
mcf_timervector = 64+32;
mcf_profilevector = 64+33;
mach_sched_init = coldfire_timer_init;
mach_tick = coldfire_tick;
mach_gettimeoffset = coldfire_timer_offset;
mach_reset = coldfire_reset;
#ifdef MCF_BDM_DISABLE

10
arch/m68knommu/platform/5407/config.c
View File

@ -10,24 +10,17 @@
/***************************************************************************/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <asm/dma.h>
#include <asm/traps.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
/***************************************************************************/
void coldfire_tick(void);
void coldfire_timer_init(irq_handler_t handler);
unsigned long coldfire_timer_offset(void);
void coldfire_reset(void);
extern unsigned int mcf_timervector;
@ -108,9 +101,6 @@ void config_BSP(char *commandp, int size)
mcf_timerlevel = 6;
#endif
mach_sched_init = coldfire_timer_init;
mach_tick = coldfire_tick;
mach_gettimeoffset = coldfire_timer_offset;
mach_reset = coldfire_reset;
}