7  * SPDX-License-Identifier:	GPL-2.0+
44 		usec = usec - tmp;  in __udelay()
46 		/* Set up TIMER 3 as timebase clock */  in __udelay()
47 		timerp->tmr = DTIM_DTMR_RST_RST;  in __udelay()
48 		timerp->tcn = 0;  in __udelay()
50 		timerp->tmr =  in __udelay()
54 		start = now = timerp->tcn;  in __udelay()
56 			now = timerp->tcn;  in __udelay()
66 		timerp->ter = (DTIM_DTER_CAP | DTIM_DTER_REF);  in dtimer_interrupt()
84 	timerp->tcn = 0;  in timer_init()
85 	timerp->trr = 0;  in timer_init()
88 	timerp->tmr = DTIM_DTMR_RST_RST;  in timer_init()
93 	timerp->tcn = 0;  in timer_init()
94 	timerp->trr = 1000;	/* Interrupt every ms */  in timer_init()
99 	timerp->tmr = CONFIG_SYS_TIMER_PRESCALER | DTIM_DTMR_CLK_DIV1 |  in timer_init()
107 	return (timestamp - base);  in get_timer()
129 		usec = usec - tmp;  in __udelay()
131 		/* Set up TIMER 3 as timebase clock */  in __udelay()
132 		timerp->pcsr = PIT_PCSR_OVW;  in __udelay()
133 		timerp->pmr = 0;  in __udelay()
135 		timerp->pcsr |= PIT_PCSR_PRE(CONFIG_SYS_PIT_PRESCALE) | PIT_PCSR_EN;  in __udelay()
137 		timerp->pmr = tmp;  in __udelay()
138 		while (timerp->pcntr > 0) ;  in __udelay()
148 	timerp->pcsr = PIT_PCSR_OVW;  in timer_init()
149 	timerp->pmr = lastinc = 0;  in timer_init()
150 	timerp->pcsr |= PIT_PCSR_PRE(CONFIG_SYS_PIT_PRESCALE) | PIT_PCSR_EN;  in timer_init()
160 	now = timerp->pcntr;  in get_timer()
161 	diff = -(now - lastinc);  in get_timer()
165 	return timestamp - base;  in get_timer()
176  * This function is derived from PowerPC code (read timebase as long long).
190  * This function is derived from PowerPC code (timebase clock frequency).