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[SPARC]: Defer clock_probe to fs_initcall()

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From: Bob Breuer <breuerr@mc.net>

That way all the of_driver bits will be ready.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Bob Breuer 2006-07-27 22:08:01 -07:00 • committed by David S. Miller
parent b8cfac4c2f
commit 96ba989d22
1 changed files with 42 additions and 32 deletions
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74
arch/sparc/kernel/time.c
View file

@ -225,6 +225,32 @@ static __inline__ int has_low_battery(void)
return (data1 == data2); /* Was the write blocked? */ return (data1 == data2); /* Was the write blocked? */
} }
static void __init mostek_set_system_time(void)
{
unsigned int year, mon, day, hour, min, sec;
struct mostek48t02 *mregs;
mregs = (struct mostek48t02 *)mstk48t02_regs;
if(!mregs) {
prom_printf("Something wrong, clock regs not mapped yet.\n");
prom_halt();
}
spin_lock_irq(&mostek_lock);
mregs->creg |= MSTK_CREG_READ;
sec = MSTK_REG_SEC(mregs);
min = MSTK_REG_MIN(mregs);
hour = MSTK_REG_HOUR(mregs);
day = MSTK_REG_DOM(mregs);
mon = MSTK_REG_MONTH(mregs);
year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
set_normalized_timespec(&wall_to_monotonic,
-xtime.tv_sec, -xtime.tv_nsec);
mregs->creg &= ~MSTK_CREG_READ;
spin_unlock_irq(&mostek_lock);
}
/* Probe for the real time clock chip on Sun4 */ /* Probe for the real time clock chip on Sun4 */
static __inline__ void sun4_clock_probe(void) static __inline__ void sun4_clock_probe(void)
{ {
@ -273,6 +299,7 @@ static __inline__ void sun4_clock_probe(void)
#endif #endif
} }
#ifndef CONFIG_SUN4
static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match) static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
{ {
struct device_node *dp = op->node; struct device_node *dp = op->node;
@ -307,6 +334,8 @@ static int __devinit clock_probe(struct of_device *op, const struct of_device_id
if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP) if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
kick_start_clock(); kick_start_clock();
mostek_set_system_time();
return 0; return 0;
} }
@ -325,56 +354,37 @@ static struct of_platform_driver clock_driver = {
/* Probe for the mostek real time clock chip. */ /* Probe for the mostek real time clock chip. */
static void clock_init(void) static int __init clock_init(void)
{ {
of_register_driver(&clock_driver, &of_bus_type); return of_register_driver(&clock_driver, &of_bus_type);
} }
/* Must be after subsys_initcall() so that busses are probed. Must
* be before device_initcall() because things like the RTC driver
* need to see the clock registers.
*/
fs_initcall(clock_init);
#endif /* !CONFIG_SUN4 */
void __init sbus_time_init(void) void __init sbus_time_init(void)
{ {
unsigned int year, mon, day, hour, min, sec;
struct mostek48t02 *mregs;
#ifdef CONFIG_SUN4
int temp;
struct intersil *iregs;
#endif
BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM); BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM);
btfixup(); btfixup();
if (ARCH_SUN4) if (ARCH_SUN4)
sun4_clock_probe(); sun4_clock_probe();
else
clock_init();
sparc_init_timers(timer_interrupt); sparc_init_timers(timer_interrupt);
#ifdef CONFIG_SUN4 #ifdef CONFIG_SUN4
if(idprom->id_machtype == (SM_SUN4 | SM_4_330)) { if(idprom->id_machtype == (SM_SUN4 | SM_4_330)) {
#endif mostek_set_system_time();
mregs = (struct mostek48t02 *)mstk48t02_regs;
if(!mregs) {
prom_printf("Something wrong, clock regs not mapped yet.\n");
prom_halt();
}
spin_lock_irq(&mostek_lock);
mregs->creg |= MSTK_CREG_READ;
sec = MSTK_REG_SEC(mregs);
min = MSTK_REG_MIN(mregs);
hour = MSTK_REG_HOUR(mregs);
day = MSTK_REG_DOM(mregs);
mon = MSTK_REG_MONTH(mregs);
year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
set_normalized_timespec(&wall_to_monotonic,
-xtime.tv_sec, -xtime.tv_nsec);
mregs->creg &= ~MSTK_CREG_READ;
spin_unlock_irq(&mostek_lock);
#ifdef CONFIG_SUN4
} else if(idprom->id_machtype == (SM_SUN4 | SM_4_260) ) { } else if(idprom->id_machtype == (SM_SUN4 | SM_4_260) ) {
/* initialise the intersil on sun4 */ /* initialise the intersil on sun4 */
unsigned int year, mon, day, hour, min, sec;
int temp;
struct intersil *iregs;
iregs=intersil_clock; iregs=intersil_clock;
if(!iregs) { if(!iregs) {