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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.de>
- */
- #include <common.h>
- #include <SA-1100.h>
- #include <time.h>
- static ulong get_timer_masked (void)
- {
- return OSCR;
- }
- ulong get_timer (ulong base)
- {
- return get_timer_masked ();
- }
- void __udelay (unsigned long usec)
- {
- ulong tmo;
- ulong endtime;
- signed long diff;
- if (usec >= 1000) {
- tmo = usec / 1000;
- tmo *= CONFIG_SYS_HZ;
- tmo /= 1000;
- } else {
- tmo = usec * CONFIG_SYS_HZ;
- tmo /= (1000*1000);
- }
- endtime = get_timer_masked () + tmo;
- do {
- ulong now = get_timer_masked ();
- diff = endtime - now;
- } while (diff >= 0);
- }
- /*
- * This function is derived from PowerPC code (read timebase as long long).
- * On ARM it just returns the timer value.
- */
- unsigned long long get_ticks(void)
- {
- return get_timer(0);
- }
- /*
- * This function is derived from PowerPC code (timebase clock frequency).
- * On ARM it returns the number of timer ticks per second.
- */
- ulong get_tbclk (void)
- {
- return CONFIG_SYS_HZ;
- }
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