* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
*
- * 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <asm/io.h>
#include <asm/arch/bits.h>
#include <asm/arch/omap2420.h>
+#define TIMER_CLOCK (CONFIG_SYS_CLK_FREQ / (2 << CONFIG_SYS_PTV))
#define TIMER_LOAD_VAL 0
/* macro to read the 32 bit timer */
-#define READ_TIMER (*((volatile ulong *)(CONFIG_SYS_TIMERBASE+TCRR)))
+#define READ_TIMER readl(CONFIG_SYS_TIMERBASE+TCRR) \
+ / (TIMER_CLOCK / CONFIG_SYS_HZ)
DECLARE_GLOBAL_DATA_PTR;
*((int32_t *) (CONFIG_SYS_TIMERBASE + TCLR)) = val; /* start timer */
/* reset time */
- gd->lastinc = READ_TIMER; /* capture current incrementer value */
- gd->tbl = 0; /* start "advancing" time stamp */
+ gd->arch.lastinc = READ_TIMER; /* capture current incrementer value */
+ gd->arch.tbl = 0; /* start "advancing" time stamp */
return(0);
}
tmp = get_timer (0); /* get current timestamp */
if ((tmo + tmp + 1) < tmp) { /* if setting this forward will roll */
/* time stamp, then reset time */
- gd->lastinc = READ_TIMER; /* capture incrementer value */
- gd->tbl = 0; /* start time stamp */
+ gd->arch.lastinc = READ_TIMER; /* capture incrementer value */
+ gd->arch.tbl = 0; /* start time stamp */
} else {
tmo += tmp; /* else, set advancing stamp wake up time */
}
{
ulong now = READ_TIMER; /* current tick value */
- if (now >= gd->lastinc) /* normal mode (non roll) */
- gd->tbl += (now - gd->lastinc); /* move stamp fordward with absoulte diff ticks */
- else /* we have rollover of incrementer */
- gd->tbl += (0xFFFFFFFF - gd->lastinc) + now;
- gd->lastinc = now;
- return gd->tbl;
+ if (now >= gd->arch.lastinc) { /* normal mode (non roll) */
+ /* move stamp fordward with absoulte diff ticks */
+ gd->arch.tbl += (now - gd->arch.lastinc);
+ } else {
+ /* we have rollover of incrementer */
+ gd->arch.tbl += ((0xFFFFFFFF / (TIMER_CLOCK / CONFIG_SYS_HZ))
+ - gd->arch.lastinc) + now;
+ }
+ gd->arch.lastinc = now;
+ return gd->arch.tbl;
}
/* waits specified delay value and resets timestamp */