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/*
* (C) Copyright 2000, 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2007
* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
/* Implemented by SPARC CPUs */
extern void cpu_wait_ticks(unsigned long ticks);
extern unsigned long cpu_usec2ticks(unsigned long usec);
extern unsigned long cpu_ticks2usec(unsigned long ticks);
/* ------------------------------------------------------------------------- */
void wait_ticks(unsigned long ticks)
{
cpu_wait_ticks(ticks);
}
/*
* This function is intended for SHORT delays only.
*/
unsigned long usec2ticks(unsigned long usec)
{
return cpu_usec2ticks(usec);
}
/* ------------------------------------------------------------------------- */
/*
* We implement the delay by converting the delay (the number of
* microseconds to wait) into a number of time base ticks; then we
* watch the time base until it has incremented by that amount.
*/
void __udelay(unsigned long usec)
{
ulong ticks = usec2ticks(usec);
wait_ticks(ticks);
}
/* ------------------------------------------------------------------------- */
unsigned long ticks2usec(unsigned long ticks)
{
return cpu_ticks2usec(ticks);
}
/* ------------------------------------------------------------------------- */
int init_timebase(void)
{
return (0);
}
/* ------------------------------------------------------------------------- */
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