+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000-2009
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <clock_legacy.h>
+#include <bootstage.h>
+#include <dm.h>
+#include <errno.h>
+#include <init.h>
+#include <spl.h>
+#include <time.h>
+#include <timer.h>
#include <watchdog.h>
#include <div64.h>
+#include <asm/global_data.h>
#include <asm/io.h>
-
-#if CONFIG_SYS_HZ != 1000
-#warning "CONFIG_SYS_HZ must be 1000 and should not be defined by platforms"
-#endif
+#include <linux/delay.h>
#ifndef CONFIG_WD_PERIOD
# define CONFIG_WD_PERIOD (10 * 1000 * 1000) /* 10 seconds default */
return readl(CONFIG_SYS_TIMER_COUNTER);
#endif
}
+
+ulong timer_get_boot_us(void)
+{
+ ulong count = timer_read_counter();
+
+#if CONFIG_SYS_TIMER_RATE == 1000000
+ return count;
+#elif CONFIG_SYS_TIMER_RATE > 1000000
+ return lldiv(count, CONFIG_SYS_TIMER_RATE / 1000000);
+#elif defined(CONFIG_SYS_TIMER_RATE)
+ return (unsigned long long)count * 1000000 / CONFIG_SYS_TIMER_RATE;
+#else
+ /* Assume the counter is in microseconds */
+ return count;
+#endif
+}
+
#else
extern unsigned long __weak timer_read_counter(void);
#endif
-unsigned long long __weak notrace get_ticks(void)
+#if CONFIG_IS_ENABLED(TIMER)
+ulong notrace get_tbclk(void)
+{
+ if (!gd->timer) {
+#ifdef CONFIG_TIMER_EARLY
+ return timer_early_get_rate();
+#else
+ int ret;
+
+ ret = dm_timer_init();
+ if (ret)
+ return ret;
+#endif
+ }
+
+ return timer_get_rate(gd->timer);
+}
+
+uint64_t notrace get_ticks(void)
+{
+ u64 count;
+ int ret;
+
+ if (!gd->timer) {
+#ifdef CONFIG_TIMER_EARLY
+ return timer_early_get_count();
+#else
+ int ret;
+
+ ret = dm_timer_init();
+ if (ret)
+ panic("Could not initialize timer (err %d)\n", ret);
+#endif
+ }
+
+ ret = timer_get_count(gd->timer, &count);
+ if (ret) {
+ if (spl_phase() > PHASE_TPL)
+ panic("Could not read count from timer (err %d)\n",
+ ret);
+ else
+ panic("no timer (err %d)\n", ret);
+ }
+
+ return count;
+}
+
+#else /* !CONFIG_TIMER */
+
+uint64_t __weak notrace get_ticks(void)
{
unsigned long now = timer_read_counter();
if (now < gd->timebase_l)
gd->timebase_h++;
gd->timebase_l = now;
- return ((unsigned long long)gd->timebase_h << 32) | gd->timebase_l;
+ return ((uint64_t)gd->timebase_h << 32) | gd->timebase_l;
}
+#endif /* CONFIG_TIMER */
+
/* Returns time in milliseconds */
-static unsigned long long notrace tick_to_time(unsigned long long tick)
+static uint64_t notrace tick_to_time(uint64_t tick)
{
ulong div = get_tbclk();
return tick_to_time(get_ticks()) - base;
}
+static uint64_t notrace tick_to_time_us(uint64_t tick)
+{
+ ulong div = get_tbclk() / 1000;
+
+ tick *= CONFIG_SYS_HZ;
+ do_div(tick, div);
+ return tick;
+}
+
+uint64_t __weak get_timer_us(uint64_t base)
+{
+ return tick_to_time_us(get_ticks()) - base;
+}
+
+unsigned long __weak get_timer_us_long(unsigned long base)
+{
+ return timer_get_us() - base;
+}
+
unsigned long __weak notrace timer_get_us(void)
{
return tick_to_time(get_ticks() * 1000);
}
-static unsigned long long usec_to_tick(unsigned long usec)
+uint64_t usec_to_tick(unsigned long usec)
{
- unsigned long long tick = usec;
+ uint64_t tick = usec;
tick *= get_tbclk();
do_div(tick, 1000000);
return tick;
void __weak __udelay(unsigned long usec)
{
- unsigned long long tmp;
+ uint64_t tmp;
tmp = get_ticks() + usec_to_tick(usec); /* get current timestamp */
do {
WATCHDOG_RESET();
kv = usec > CONFIG_WD_PERIOD ? CONFIG_WD_PERIOD : usec;
- __udelay (kv);
+ __udelay(kv);
usec -= kv;
} while(usec);
}
-
-void mdelay(unsigned long msec)
-{
- while (msec--)
- udelay(1000);
-}