+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* (C) Copyright 2004
* ARM Ltd.
* Philippe Robin, <philippe.robin@arm.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
*/
#include <common.h>
/* init the timestamp */
total_count = 0ULL;
- reset_timer_masked();
+ /* capure current decrementer value */
+ lastdec = READ_TIMER;
+ /* start "advancing" time stamp from 0 */
+ timestamp = 0L;
div_timer = CONFIG_SYS_HZ_CLOCK;
do_div(div_timer, CONFIG_SYS_HZ);
/*
* timer without interrupts
*/
-void reset_timer (void)
-{
- reset_timer_masked ();
-}
-
-ulong get_timer (ulong base_ticks)
-{
- return get_timer_masked () - base_ticks;
-}
-
-void set_timer (ulong ticks)
-{
- timestamp = ticks;
- total_count = ticks * div_timer;
-}
-
-/* delay usec useconds */
-void udelay (unsigned long usec)
-{
- ulong tmo, tmp;
-
- /* Convert to U-Boot ticks */
- tmo = usec * CONFIG_SYS_HZ;
- tmo /= (1000000L);
-
- tmp = get_timer_masked(); /* get current timestamp */
- tmo += tmp; /* form target timestamp */
-
- while (get_timer_masked () < tmo) {/* loop till event */
- /*NOP*/;
- }
-}
-
-void reset_timer_masked (void)
-{
- /* capure current decrementer value */
- lastdec = READ_TIMER;
- /* start "advancing" time stamp from 0 */
- timestamp = 0L;
-}
/* converts the timer reading to U-Boot ticks */
/* the timestamp is the number of ticks since reset */
-ulong get_timer_masked (void)
+static ulong get_timer_masked (void)
{
/* get current count */
unsigned long long now = READ_TIMER;
return timestamp;
}
-/* waits specified delay value and resets timestamp */
-void udelay_masked (unsigned long usec)
+ulong get_timer (ulong base_ticks)
{
- udelay(usec);
+ return get_timer_masked () - base_ticks;
+}
+
+/* delay usec useconds */
+void __udelay (unsigned long usec)
+{
+ ulong tmo, tmp;
+
+ /* Convert to U-Boot ticks */
+ tmo = usec * CONFIG_SYS_HZ;
+ tmo /= (1000000L);
+
+ tmp = get_timer_masked(); /* get current timestamp */
+ tmo += tmp; /* form target timestamp */
+
+ while (get_timer_masked () < tmo) {/* loop till event */
+ /*NOP*/;
+ }
}
/*