42 	struct nios2_timer timer;  member
47 	struct nios2_timer timer;  member
63 static u16 timer_readw(struct nios2_timer *timer, u32 offs)  in timer_readw()  argument
65 	return readw(timer->base + offs);  in timer_readw()
68 static void timer_writew(struct nios2_timer *timer, u16 val, u32 offs)  in timer_writew()  argument
70 	writew(val, timer->base + offs);  in timer_writew()
73 static inline unsigned long read_timersnapshot(struct nios2_timer *timer)  in read_timersnapshot()  argument
77 	timer_writew(timer, 0, ALTERA_TIMER_SNAPL_REG);  in read_timersnapshot()
78 	count = timer_readw(timer, ALTERA_TIMER_SNAPH_REG) << 16 |  in read_timersnapshot()
79 		timer_readw(timer, ALTERA_TIMER_SNAPL_REG);  in read_timersnapshot()
91 	count = read_timersnapshot(&nios2_cs->timer);  in nios2_timer_read()
114 static void nios2_timer_start(struct nios2_timer *timer)  in nios2_timer_start()  argument
118 	ctrl = timer_readw(timer, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_start()
120 	timer_writew(timer, ctrl, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_start()
123 static void nios2_timer_stop(struct nios2_timer *timer)  in nios2_timer_stop()  argument
127 	ctrl = timer_readw(timer, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_stop()
129 	timer_writew(timer, ctrl, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_stop()
132 static void nios2_timer_config(struct nios2_timer *timer, unsigned long period,  in nios2_timer_config()  argument
141 	ctrl = timer_readw(timer, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_config()
143 	timer_writew(timer, ctrl | ALTERA_TIMER_CONTROL_STOP_MSK,  in nios2_timer_config()
147 	timer_writew(timer, period, ALTERA_TIMER_PERIODL_REG);  in nios2_timer_config()
148 	timer_writew(timer, period >> 16, ALTERA_TIMER_PERIODH_REG);  in nios2_timer_config()
155 	timer_writew(timer, ctrl, ALTERA_TIMER_CONTROL_REG);  in nios2_timer_config()
163 	nios2_timer_config(&nios2_ced->timer, delta, false);  in nios2_timer_set_next_event()
171 	struct nios2_timer *timer = &nios2_ced->timer;  in nios2_timer_shutdown()  local
173 	nios2_timer_stop(timer);  in nios2_timer_shutdown()
181 	struct nios2_timer *timer = &nios2_ced->timer;  in nios2_timer_set_periodic()  local
183 	period = DIV_ROUND_UP(timer->freq, HZ);  in nios2_timer_set_periodic()
184 	nios2_timer_config(timer, period, true);  in nios2_timer_set_periodic()
191 	struct nios2_timer *timer = &nios2_ced->timer;  in nios2_timer_resume()  local
193 	nios2_timer_start(timer);  in nios2_timer_resume()
203 	timer_writew(&nios2_ced->timer, 0, ALTERA_TIMER_STATUS_REG);  in timer_interrupt()
234 static __init void nios2_clockevent_init(struct device_node *timer)  in nios2_clockevent_init()  argument
240 	nios2_timer_get_base_and_freq(timer, &iobase, &freq);  in nios2_clockevent_init()
242 	irq = irq_of_parse_and_map(timer, 0);  in nios2_clockevent_init()
246 	nios2_ce.timer.base = iobase;  in nios2_clockevent_init()
247 	nios2_ce.timer.freq = freq;  in nios2_clockevent_init()
252 	nios2_timer_stop(&nios2_ce.timer);  in nios2_clockevent_init()
254 	timer_writew(&nios2_ce.timer, 0, ALTERA_TIMER_STATUS_REG);  in nios2_clockevent_init()
256 	if (request_irq(irq, timer_interrupt, IRQF_TIMER, timer->name,  in nios2_clockevent_init()
263 static __init void nios2_clocksource_init(struct device_node *timer)  in nios2_clocksource_init()  argument
269 	nios2_timer_get_base_and_freq(timer, &iobase, &freq);  in nios2_clocksource_init()
271 	nios2_cs.timer.base = iobase;  in nios2_clocksource_init()
272 	nios2_cs.timer.freq = freq;  in nios2_clocksource_init()
276 	timer_writew(&nios2_cs.timer, USHRT_MAX, ALTERA_TIMER_PERIODL_REG);  in nios2_clocksource_init()
277 	timer_writew(&nios2_cs.timer, USHRT_MAX, ALTERA_TIMER_PERIODH_REG);  in nios2_clocksource_init()
281 	timer_writew(&nios2_cs.timer, ctrl, ALTERA_TIMER_CONTROL_REG);  in nios2_clocksource_init()
292 static void __init nios2_time_init(struct device_node *timer)  in nios2_time_init()  argument
298 		nios2_clockevent_init(timer);  in nios2_time_init()
301 		nios2_clocksource_init(timer);  in nios2_time_init()