drivers/clocksource/bcm_kona_timer.c

47  * We use the peripheral timers for system tick, the cpu global timer for
75 	 * Read 64-bit free running counter  in kona_timer_get_counter()
76 	 * 1. Read hi-word  in kona_timer_get_counter()
77 	 * 2. Read low-word  in kona_timer_get_counter()
78 	 * 3. Read hi-word again  in kona_timer_get_counter()
80 	 *      if new hi-word is not equal to previously read hi-word, then  in kona_timer_get_counter()
83 	 *      if new hi-word is equal to previously read hi-word then stop.  in kona_timer_get_counter()
91 	} while (--loop_limit);  in kona_timer_get_counter()
94 		pr_err(" Timer will be impacted\n");  in kona_timer_get_counter()
95 		return -ETIMEDOUT;  in kona_timer_get_counter()
105 	 * timer (0) is disabled by the timer interrupt already  in kona_timer_set_next_event()
106 	 * so, here we reload the next event value and re-enable  in kona_timer_set_next_event()
107 	 * the timer.  in kona_timer_set_next_event()
110 	 * timer-interrupt->set_next_event. CPU local timers, when  in kona_timer_set_next_event()
140 	.name = "timer 1",
159 	evt->event_handler(evt);  in kona_timer_interrupt()
173 	} else if (!of_property_read_u32(node, "clock-frequency", &freq)) {  in kona_timer_init()
176 		pr_err("Kona Timer v1 unable to determine clock-frequency\n");  in kona_timer_init()
177 		return -EINVAL;  in kona_timer_init()
190 			"Kona Timer Tick", NULL))  in kona_timer_init()
191 		pr_err("%s: request_irq() failed\n", "Kona Timer Tick");  in kona_timer_init()
197 TIMER_OF_DECLARE(brcm_kona, "brcm,kona-timer", kona_timer_init);
199  * bcm,kona-timer is deprecated by brcm,kona-timer
202 TIMER_OF_DECLARE(bcm_kona, "bcm,kona-timer", kona_timer_init);