aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sparc/kernel/time.c
diff options
context:
space:
mode:
authorJeff Garzik <jeff@garzik.org>2006-07-29 00:28:36 -0400
committerJeff Garzik <jeff@garzik.org>2006-07-29 00:28:36 -0400
commit572e432e01c1f7c64ad8375a6e0d935b0e40ebf5 (patch)
tree57ae4168e9bf4c88a1267f4ec6c96df3789cc9cc /arch/sparc/kernel/time.c
parentd11ea48aab3b57cc931cc7120603e1c2ffb04302 (diff)
parente3f2ddeac718c768fdac4b7fe69d465172f788a8 (diff)
Merge branch 'master' into upstream
Diffstat (limited to 'arch/sparc/kernel/time.c')
-rw-r--r--arch/sparc/kernel/time.c74
1 files changed, 42 insertions, 32 deletions
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 04eb1eab6e3e..845081b01267 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -225,6 +225,32 @@ static __inline__ int has_low_battery(void)
225 return (data1 == data2); /* Was the write blocked? */ 225 return (data1 == data2); /* Was the write blocked? */
226} 226}
227 227
228static void __init mostek_set_system_time(void)
229{
230 unsigned int year, mon, day, hour, min, sec;
231 struct mostek48t02 *mregs;
232
233 mregs = (struct mostek48t02 *)mstk48t02_regs;
234 if(!mregs) {
235 prom_printf("Something wrong, clock regs not mapped yet.\n");
236 prom_halt();
237 }
238 spin_lock_irq(&mostek_lock);
239 mregs->creg |= MSTK_CREG_READ;
240 sec = MSTK_REG_SEC(mregs);
241 min = MSTK_REG_MIN(mregs);
242 hour = MSTK_REG_HOUR(mregs);
243 day = MSTK_REG_DOM(mregs);
244 mon = MSTK_REG_MONTH(mregs);
245 year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
246 xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
247 xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
248 set_normalized_timespec(&wall_to_monotonic,
249 -xtime.tv_sec, -xtime.tv_nsec);
250 mregs->creg &= ~MSTK_CREG_READ;
251 spin_unlock_irq(&mostek_lock);
252}
253
228/* Probe for the real time clock chip on Sun4 */ 254/* Probe for the real time clock chip on Sun4 */
229static __inline__ void sun4_clock_probe(void) 255static __inline__ void sun4_clock_probe(void)
230{ 256{
@@ -273,6 +299,7 @@ static __inline__ void sun4_clock_probe(void)
273#endif 299#endif
274} 300}
275 301
302#ifndef CONFIG_SUN4
276static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match) 303static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
277{ 304{
278 struct device_node *dp = op->node; 305 struct device_node *dp = op->node;
@@ -307,6 +334,8 @@ static int __devinit clock_probe(struct of_device *op, const struct of_device_id
307 if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP) 334 if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
308 kick_start_clock(); 335 kick_start_clock();
309 336
337 mostek_set_system_time();
338
310 return 0; 339 return 0;
311} 340}
312 341
@@ -325,56 +354,37 @@ static struct of_platform_driver clock_driver = {
325 354
326 355
327/* Probe for the mostek real time clock chip. */ 356/* Probe for the mostek real time clock chip. */
328static void clock_init(void) 357static int __init clock_init(void)
329{ 358{
330 of_register_driver(&clock_driver, &of_bus_type); 359 return of_register_driver(&clock_driver, &of_bus_type);
331} 360}
332 361
362/* Must be after subsys_initcall() so that busses are probed. Must
363 * be before device_initcall() because things like the RTC driver
364 * need to see the clock registers.
365 */
366fs_initcall(clock_init);
367#endif /* !CONFIG_SUN4 */
368
333void __init sbus_time_init(void) 369void __init sbus_time_init(void)
334{ 370{
335 unsigned int year, mon, day, hour, min, sec;
336 struct mostek48t02 *mregs;
337
338#ifdef CONFIG_SUN4
339 int temp;
340 struct intersil *iregs;
341#endif
342 371
343 BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM); 372 BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM);
344 btfixup(); 373 btfixup();
345 374
346 if (ARCH_SUN4) 375 if (ARCH_SUN4)
347 sun4_clock_probe(); 376 sun4_clock_probe();
348 else
349 clock_init();
350 377
351 sparc_init_timers(timer_interrupt); 378 sparc_init_timers(timer_interrupt);
352 379
353#ifdef CONFIG_SUN4 380#ifdef CONFIG_SUN4
354 if(idprom->id_machtype == (SM_SUN4 | SM_4_330)) { 381 if(idprom->id_machtype == (SM_SUN4 | SM_4_330)) {
355#endif 382 mostek_set_system_time();
356 mregs = (struct mostek48t02 *)mstk48t02_regs;
357 if(!mregs) {
358 prom_printf("Something wrong, clock regs not mapped yet.\n");
359 prom_halt();
360 }
361 spin_lock_irq(&mostek_lock);
362 mregs->creg |= MSTK_CREG_READ;
363 sec = MSTK_REG_SEC(mregs);
364 min = MSTK_REG_MIN(mregs);
365 hour = MSTK_REG_HOUR(mregs);
366 day = MSTK_REG_DOM(mregs);
367 mon = MSTK_REG_MONTH(mregs);
368 year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
369 xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
370 xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
371 set_normalized_timespec(&wall_to_monotonic,
372 -xtime.tv_sec, -xtime.tv_nsec);
373 mregs->creg &= ~MSTK_CREG_READ;
374 spin_unlock_irq(&mostek_lock);
375#ifdef CONFIG_SUN4
376 } else if(idprom->id_machtype == (SM_SUN4 | SM_4_260) ) { 383 } else if(idprom->id_machtype == (SM_SUN4 | SM_4_260) ) {
377 /* initialise the intersil on sun4 */ 384 /* initialise the intersil on sun4 */
385 unsigned int year, mon, day, hour, min, sec;
386 int temp;
387 struct intersil *iregs;
378 388
379 iregs=intersil_clock; 389 iregs=intersil_clock;
380 if(!iregs) { 390 if(!iregs) {