mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 07:57:21 +00:00
f97cae9575
This should be uint64_t to match its definition in common.h. Fix it. Signed-off-by: Simon Glass <sjg@chromium.org>
64 lines
1.2 KiB
C
64 lines
1.2 KiB
C
/*
|
|
* (C) Copyright 2013
|
|
* David Feng <fenghua@phytium.com.cn>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <asm/system.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/*
|
|
* Generic timer implementation of get_tbclk()
|
|
*/
|
|
unsigned long get_tbclk(void)
|
|
{
|
|
unsigned long cntfrq;
|
|
asm volatile("mrs %0, cntfrq_el0" : "=r" (cntfrq));
|
|
return cntfrq;
|
|
}
|
|
|
|
/*
|
|
* Generic timer implementation of timer_read_counter()
|
|
*/
|
|
unsigned long timer_read_counter(void)
|
|
{
|
|
unsigned long cntpct;
|
|
#ifdef CONFIG_SYS_FSL_ERRATUM_A008585
|
|
/* This erratum number needs to be confirmed to match ARM document */
|
|
unsigned long temp;
|
|
#endif
|
|
isb();
|
|
asm volatile("mrs %0, cntpct_el0" : "=r" (cntpct));
|
|
#ifdef CONFIG_SYS_FSL_ERRATUM_A008585
|
|
asm volatile("mrs %0, cntpct_el0" : "=r" (temp));
|
|
while (temp != cntpct) {
|
|
asm volatile("mrs %0, cntpct_el0" : "=r" (cntpct));
|
|
asm volatile("mrs %0, cntpct_el0" : "=r" (temp));
|
|
}
|
|
#endif
|
|
return cntpct;
|
|
}
|
|
|
|
uint64_t get_ticks(void)
|
|
{
|
|
unsigned long ticks = timer_read_counter();
|
|
|
|
gd->arch.tbl = ticks;
|
|
|
|
return ticks;
|
|
}
|
|
|
|
unsigned long usec2ticks(unsigned long usec)
|
|
{
|
|
ulong ticks;
|
|
if (usec < 1000)
|
|
ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000;
|
|
else
|
|
ticks = ((usec / 10) * (get_tbclk() / 100000));
|
|
|
|
return ticks;
|
|
}
|