39 	struct nios2_timer timer;  member
44 	struct nios2_timer timer;  member
60 static u16 timer_readw(struct nios2_timer *timer, u32 offs)  in timer_readw()  argument
62 	return readw(timer->base + offs);  in timer_readw()
65 static void timer_writew(struct nios2_timer *timer, u16 val, u32 offs)  in timer_writew()  argument
67 	writew(val, timer->base + offs);  in timer_writew()
70 static inline unsigned long read_timersnapshot(struct nios2_timer *timer)  in read_timersnapshot()  argument
74 	timer_writew(timer, 0, ALTERA_TIMER_SNAPL_REG);  in read_timersnapshot()
75 	count = timer_readw(timer, ALTERA_TIMER_SNAPH_REG) << 16 |  in read_timersnapshot()
76 		timer_readw(timer, ALTERA_TIMER_SNAPL_REG);  in read_timersnapshot()
88 	count = read_timersnapshot(&nios2_cs->timer);  in nios2_timer_read()
110 static void nios2_timer_start(struct nios2_timer *timer)  in nios2_timer_start()  argument
114 	ctrl = timer_readw(timer, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_start()
116 	timer_writew(timer, ctrl, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_start()
119 static void nios2_timer_stop(struct nios2_timer *timer)  in nios2_timer_stop()  argument
123 	ctrl = timer_readw(timer, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_stop()
125 	timer_writew(timer, ctrl, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_stop()
128 static void nios2_timer_config(struct nios2_timer *timer, unsigned long period,  in nios2_timer_config()  argument
137 	ctrl = timer_readw(timer, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_config()
139 	timer_writew(timer, ctrl | ALTERA_TIMER_CONTROL_STOP_MSK,  in nios2_timer_config()
143 	timer_writew(timer, period, ALTERA_TIMER_PERIODL_REG);  in nios2_timer_config()
144 	timer_writew(timer, period >> 16, ALTERA_TIMER_PERIODH_REG);  in nios2_timer_config()
151 	timer_writew(timer, ctrl, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_config()
159 	nios2_timer_config(&nios2_ced->timer, delta, evt->mode);  in nios2_timer_set_next_event()
169 	struct nios2_timer *timer = &nios2_ced->timer;  in nios2_timer_set_mode()  local
173 		period = DIV_ROUND_UP(timer->freq, HZ);  in nios2_timer_set_mode()
174 		nios2_timer_config(timer, period, CLOCK_EVT_MODE_PERIODIC);  in nios2_timer_set_mode()
179 		nios2_timer_stop(timer);  in nios2_timer_set_mode()
182 		nios2_timer_start(timer);  in nios2_timer_set_mode()
193 	timer_writew(&nios2_ced->timer, 0, ALTERA_TIMER_STATUS_REG);  in timer_interrupt()
221 static __init void nios2_clockevent_init(struct device_node *timer)  in nios2_clockevent_init()  argument
227 	nios2_timer_get_base_and_freq(timer, &iobase, &freq);  in nios2_clockevent_init()
229 	irq = irq_of_parse_and_map(timer, 0);  in nios2_clockevent_init()
233 	nios2_ce.timer.base = iobase;  in nios2_clockevent_init()
234 	nios2_ce.timer.freq = freq;  in nios2_clockevent_init()
239 	nios2_timer_stop(&nios2_ce.timer);  in nios2_clockevent_init()
241 	timer_writew(&nios2_ce.timer, 0, ALTERA_TIMER_STATUS_REG);  in nios2_clockevent_init()
243 	if (request_irq(irq, timer_interrupt, IRQF_TIMER, timer->name,  in nios2_clockevent_init()
250 static __init void nios2_clocksource_init(struct device_node *timer)  in nios2_clocksource_init()  argument
256 	nios2_timer_get_base_and_freq(timer, &iobase, &freq);  in nios2_clocksource_init()
258 	nios2_cs.timer.base = iobase;  in nios2_clocksource_init()
259 	nios2_cs.timer.freq = freq;  in nios2_clocksource_init()
263 	timer_writew(&nios2_cs.timer, USHRT_MAX, ALTERA_TIMER_PERIODL_REG);  in nios2_clocksource_init()
264 	timer_writew(&nios2_cs.timer, USHRT_MAX, ALTERA_TIMER_PERIODH_REG);  in nios2_clocksource_init()
268 	timer_writew(&nios2_cs.timer, ctrl, ALTERA_TIMER_CONTROL_REG);  in nios2_clocksource_init()
279 static void __init nios2_time_init(struct device_node *timer)  in nios2_time_init()  argument
285 		nios2_clockevent_init(timer);  in nios2_time_init()
288 		nios2_clocksource_init(timer);  in nios2_time_init()