mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/*
|
|
* (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);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------- */
|