55 	struct dmtimer_systimer t;  member
61 	struct dmtimer_systimer t;  member
66 static bool dmtimer_systimer_revision1(struct dmtimer_systimer *t)  in dmtimer_systimer_revision1()  argument
68 	u32 tidr = readl_relaxed(t->base);  in dmtimer_systimer_revision1()
73 static void dmtimer_systimer_enable(struct dmtimer_systimer *t)  in dmtimer_systimer_enable()  argument
77 	if (dmtimer_systimer_revision1(t))  in dmtimer_systimer_enable()
82 	writel_relaxed(val, t->base + t->sysc);  in dmtimer_systimer_enable()
85 static void dmtimer_systimer_disable(struct dmtimer_systimer *t)  in dmtimer_systimer_disable()  argument
87 	if (!dmtimer_systimer_revision1(t))  in dmtimer_systimer_disable()
90 	writel_relaxed(DMTIMER_TYPE1_DISABLE, t->base + t->sysc);  in dmtimer_systimer_disable()
93 static int __init dmtimer_systimer_type1_reset(struct dmtimer_systimer *t)  in dmtimer_systimer_type1_reset()  argument
95 	void __iomem *syss = t->base + OMAP_TIMER_V1_SYS_STAT_OFFSET;  in dmtimer_systimer_type1_reset()
99 	dmtimer_systimer_enable(t);  in dmtimer_systimer_type1_reset()
100 	writel_relaxed(BIT(1) | BIT(2), t->base + t->ifctrl);  in dmtimer_systimer_type1_reset()
108 static int __init dmtimer_systimer_type2_reset(struct dmtimer_systimer *t)  in dmtimer_systimer_type2_reset()  argument
110 	void __iomem *sysc = t->base + t->sysc;  in dmtimer_systimer_type2_reset()
113 	dmtimer_systimer_enable(t);  in dmtimer_systimer_type2_reset()
122 static int __init dmtimer_systimer_reset(struct dmtimer_systimer *t)  in dmtimer_systimer_reset()  argument
126 	if (dmtimer_systimer_revision1(t))  in dmtimer_systimer_reset()
127 		ret = dmtimer_systimer_type1_reset(t);  in dmtimer_systimer_reset()
129 		ret = dmtimer_systimer_type2_reset(t);  in dmtimer_systimer_reset()
323 static int __init dmtimer_systimer_init_clock(struct dmtimer_systimer *t,  in dmtimer_systimer_init_clock()  argument
352 		t->ick = clock;  in dmtimer_systimer_init_clock()
354 		t->fck = clock;  in dmtimer_systimer_init_clock()
362 					 struct dmtimer_systimer *t)  in dmtimer_systimer_setup()  argument
371 	t->base = of_iomap(np, 0);  in dmtimer_systimer_setup()
372 	if (!t->base)  in dmtimer_systimer_setup()
385 	error = dmtimer_systimer_init_clock(t, np->parent, "fck", &rate);  in dmtimer_systimer_setup()
389 	t->rate = rate;  in dmtimer_systimer_setup()
391 	error = dmtimer_systimer_init_clock(t, np->parent, "ick", &rate);  in dmtimer_systimer_setup()
395 	if (dmtimer_systimer_revision1(t)) {  in dmtimer_systimer_setup()
396 		t->irq_stat = OMAP_TIMER_V1_STAT_OFFSET;  in dmtimer_systimer_setup()
397 		t->irq_ena = OMAP_TIMER_V1_INT_EN_OFFSET;  in dmtimer_systimer_setup()
398 		t->pend = _OMAP_TIMER_WRITE_PEND_OFFSET;  in dmtimer_systimer_setup()
401 		t->irq_stat = OMAP_TIMER_V2_IRQSTATUS;  in dmtimer_systimer_setup()
402 		t->irq_ena = OMAP_TIMER_V2_IRQENABLE_SET;  in dmtimer_systimer_setup()
404 		t->pend = regbase + _OMAP_TIMER_WRITE_PEND_OFFSET;  in dmtimer_systimer_setup()
407 	t->sysc = OMAP_TIMER_OCP_CFG_OFFSET;  in dmtimer_systimer_setup()
408 	t->load = regbase + _OMAP_TIMER_LOAD_OFFSET;  in dmtimer_systimer_setup()
409 	t->counter = regbase + _OMAP_TIMER_COUNTER_OFFSET;  in dmtimer_systimer_setup()
410 	t->ctrl = regbase + _OMAP_TIMER_CTRL_OFFSET;  in dmtimer_systimer_setup()
411 	t->wakeup = regbase + _OMAP_TIMER_WAKEUP_EN_OFFSET;  in dmtimer_systimer_setup()
412 	t->ifctrl = regbase + _OMAP_TIMER_IF_CTRL_OFFSET;  in dmtimer_systimer_setup()
414 	dmtimer_systimer_reset(t);  in dmtimer_systimer_setup()
415 	dmtimer_systimer_enable(t);  in dmtimer_systimer_setup()
416 	pr_debug("dmtimer rev %08x sysc %08x\n", readl_relaxed(t->base),  in dmtimer_systimer_setup()
417 		 readl_relaxed(t->base + t->sysc));  in dmtimer_systimer_setup()
422 	iounmap(t->base);  in dmtimer_systimer_setup()
437 	struct dmtimer_systimer *t = &clkevt->t;  in dmtimer_clockevent_interrupt()  local
439 	writel_relaxed(OMAP_TIMER_INT_OVERFLOW, t->base + t->irq_stat);  in dmtimer_clockevent_interrupt()
449 	struct dmtimer_systimer *t = &clkevt->t;  in dmtimer_set_next_event()  local
450 	void __iomem *pend = t->base + t->pend;  in dmtimer_set_next_event()
454 	writel_relaxed(0xffffffff - cycles, t->base + t->counter);  in dmtimer_set_next_event()
458 	writel_relaxed(OMAP_TIMER_CTRL_ST, t->base + t->ctrl);  in dmtimer_set_next_event()
466 	struct dmtimer_systimer *t = &clkevt->t;  in dmtimer_clockevent_shutdown()  local
467 	void __iomem *ctrl = t->base + t->ctrl;  in dmtimer_clockevent_shutdown()
477 		udelay(3500000 / t->rate + 1);  in dmtimer_clockevent_shutdown()
479 	writel_relaxed(OMAP_TIMER_INT_OVERFLOW, t->base + t->irq_stat);  in dmtimer_clockevent_shutdown()
487 	struct dmtimer_systimer *t = &clkevt->t;  in dmtimer_set_periodic()  local
488 	void __iomem *pend = t->base + t->pend;  in dmtimer_set_periodic()
495 	writel_relaxed(clkevt->period, t->base + t->load);  in dmtimer_set_periodic()
499 	writel_relaxed(clkevt->period, t->base + t->counter);  in dmtimer_set_periodic()
504 		       t->base + t->ctrl);  in dmtimer_set_periodic()
512 	struct dmtimer_systimer *t = &clkevt->t;  in omap_clockevent_idle()  local
514 	dmtimer_systimer_disable(t);  in omap_clockevent_idle()
515 	clk_disable(t->fck);  in omap_clockevent_idle()
521 	struct dmtimer_systimer *t = &clkevt->t;  in omap_clockevent_unidle()  local
524 	error = clk_enable(t->fck);  in omap_clockevent_unidle()
528 	dmtimer_systimer_enable(t);  in omap_clockevent_unidle()
529 	writel_relaxed(OMAP_TIMER_INT_OVERFLOW, t->base + t->irq_ena);  in omap_clockevent_unidle()
530 	writel_relaxed(OMAP_TIMER_INT_OVERFLOW, t->base + t->wakeup);  in omap_clockevent_unidle()
541 	struct dmtimer_systimer *t;  in dmtimer_clkevt_init_common()  local
544 	t = &clkevt->t;  in dmtimer_clkevt_init_common()
565 	error = dmtimer_systimer_setup(np, &clkevt->t);  in dmtimer_clkevt_init_common()
569 	clkevt->period = 0xffffffff - DIV_ROUND_CLOSEST(t->rate, HZ);  in dmtimer_clkevt_init_common()
576 	writel_relaxed(OMAP_TIMER_CTRL_POSTED, t->base + t->ifctrl);  in dmtimer_clkevt_init_common()
583 	writel_relaxed(OMAP_TIMER_INT_OVERFLOW, t->base + t->irq_ena);  in dmtimer_clkevt_init_common()
584 	writel_relaxed(OMAP_TIMER_INT_OVERFLOW, t->base + t->wakeup);  in dmtimer_clkevt_init_common()
588 		"always-on " : "", t->rate, np->parent);  in dmtimer_clkevt_init_common()
593 	iounmap(t->base);  in dmtimer_clkevt_init_common()
615 	clockevents_config_and_register(&clkevt->dev, clkevt->t.rate,  in dmtimer_clockevent_init()
664 	struct dmtimer_systimer *t = &clkevt->t;  in omap_dmtimer_starting_cpu()  local
666 	clockevents_config_and_register(dev, t->rate, 3, ULONG_MAX);  in omap_dmtimer_starting_cpu()
675 	struct dmtimer_systimer *t = &clkevt->t;  in dmtimer_percpu_timer_startup()  local
677 	if (t->sysc) {  in dmtimer_percpu_timer_startup()
715 	struct dmtimer_systimer *t = &clksrc->t;  in dmtimer_clocksource_read_cycles()  local
717 	return (u64)readl_relaxed(t->base + t->counter);  in dmtimer_clocksource_read_cycles()
730 	struct dmtimer_systimer *t = &clksrc->t;  in dmtimer_clocksource_suspend()  local
732 	clksrc->loadval = readl_relaxed(t->base + t->counter);  in dmtimer_clocksource_suspend()
733 	dmtimer_systimer_disable(t);  in dmtimer_clocksource_suspend()
734 	clk_disable(t->fck);  in dmtimer_clocksource_suspend()
740 	struct dmtimer_systimer *t = &clksrc->t;  in dmtimer_clocksource_resume()  local
743 	error = clk_enable(t->fck);  in dmtimer_clocksource_resume()
747 	dmtimer_systimer_enable(t);  in dmtimer_clocksource_resume()
748 	writel_relaxed(clksrc->loadval, t->base + t->counter);  in dmtimer_clocksource_resume()
750 		       t->base + t->ctrl);  in dmtimer_clocksource_resume()
756 	struct dmtimer_systimer *t;  in dmtimer_clocksource_init()  local
765 	t = &clksrc->t;  in dmtimer_clocksource_init()
767 	error = dmtimer_systimer_setup(np, t);  in dmtimer_clocksource_init()
783 	writel_relaxed(0, t->base + t->counter);  in dmtimer_clocksource_init()
785 		       t->base + t->ctrl);  in dmtimer_clocksource_init()
792 		dmtimer_sched_clock_counter = t->base + t->counter;  in dmtimer_clocksource_init()
793 		sched_clock_register(dmtimer_read_sched_clock, 32, t->rate);  in dmtimer_clocksource_init()
796 	if (clocksource_register_hz(dev, t->rate))  in dmtimer_clocksource_init()