1 // SPDX-License-Identifier: GPL-2.0+
4  * Po-Yu Chuang <ratbert@faraday-tech.com>
26 	writel(0, &tmr->cr);  in timer_init()
34 	writel(TIMER_LOAD_VAL, &tmr->timer3_load);  in timer_init()
35 	writel(TIMER_LOAD_VAL, &tmr->timer3_counter);  in timer_init()
36 	writel(0, &tmr->timer3_match1);  in timer_init()
37 	writel(0, &tmr->timer3_match2);  in timer_init()
39 	/* we don't want timer to issue interrupts */  in timer_init()
43 	       &tmr->interrupt_mask);  in timer_init()
45 	cr = readl(&tmr->cr);  in timer_init()
50 	writel(cr, &tmr->cr);  in timer_init()
71 	lastdec = readl(&tmr->timer3_counter) / (TIMER_CLOCK / CONFIG_SYS_HZ);  in reset_timer_masked()
73 	lastdec = readl(&tmr->timer3_counter) /  in reset_timer_masked()
96 	ulong now = readl(&tmr->timer3_counter) / (TIMER_CLOCK / CONFIG_SYS_HZ);  in get_timer_masked()
98 	ulong now = readl(&tmr->timer3_counter) /  in get_timer_masked()
109 		timestamp += lastdec - now;  in get_timer_masked()
114 		 * nts = ts + ld + (TLV - now)  in get_timer_masked()
115 		 * ts=old stamp, ld=time that passed before passing through -1  in get_timer_masked()
116 		 * (TLV-now) amount of time after passing though -1  in get_timer_masked()
120 		timestamp += lastdec + TIMER_LOAD_VAL - now;  in get_timer_masked()
131  * return difference between timer ticks and base
133 ulong get_timer(ulong base)  in get_timer()  argument
135 	debug("%s(%lx)\n", __func__, base);  in get_timer()
136 	return get_timer_masked() - base;  in get_timer()
139 void set_timer(ulong t)  in set_timer()  argument
141 	debug("%s(%lx)\n", __func__, t);  in set_timer()
142 	timestamp = t;  in set_timer()
151 	long tmo = usec * (TIMER_CLOCK / 1000) / 1000;  in __udelay()
153 	long tmo = usec * ((CONFIG_SYS_CLK_FREQ / 2) / 1000) / 1000;  in __udelay()
155 	unsigned long now, last = readl(&tmr->timer3_counter);  in __udelay()
159 		now = readl(&tmr->timer3_counter);  in __udelay()
161 			tmo -= TIMER_LOAD_VAL + last - now;  in __udelay()
163 			tmo -= last - now;  in __udelay()