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Diffstat (limited to 'cpu/arm1136/omap24xx/timer.c')
-rw-r--r--cpu/arm1136/omap24xx/timer.c158
1 files changed, 0 insertions, 158 deletions
diff --git a/cpu/arm1136/omap24xx/timer.c b/cpu/arm1136/omap24xx/timer.c
deleted file mode 100644
index 6754749..0000000
--- a/cpu/arm1136/omap24xx/timer.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * (C) Copyright 2004
- * Texas Instruments
- * Richard Woodruff <r-woodruff2@ti.com>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- * Alex Zuepke <azu@sysgo.de>
- *
- * (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
- */
-
-#include <common.h>
-#include <asm/arch/bits.h>
-#include <asm/arch/omap2420.h>
-
-#define TIMER_LOAD_VAL 0
-
-/* macro to read the 32 bit timer */
-#define READ_TIMER (*((volatile ulong *)(CONFIG_SYS_TIMERBASE+TCRR)))
-
-static ulong timestamp;
-static ulong lastinc;
-
-int timer_init (void)
-{
- int32_t val;
-
- /* Start the counter ticking up */
- *((int32_t *) (CONFIG_SYS_TIMERBASE + TLDR)) = TIMER_LOAD_VAL; /* reload value on overflow*/
- val = (CONFIG_SYS_PTV << 2) | BIT5 | BIT1 | BIT0; /* mask to enable timer*/
- *((int32_t *) (CONFIG_SYS_TIMERBASE + TCLR)) = val; /* start timer */
-
- reset_timer_masked(); /* init the timestamp and lastinc value */
-
- return(0);
-}
-/*
- * timer without interrupts
- */
-void reset_timer (void)
-{
- reset_timer_masked ();
-}
-
-ulong get_timer (ulong base)
-{
- return get_timer_masked () - base;
-}
-
-void set_timer (ulong t)
-{
- timestamp = t;
-}
-
-/* delay x useconds AND perserve advance timstamp value */
-void __udelay (unsigned long usec)
-{
- ulong tmo, tmp;
-
- if (usec >= 1000) { /* if "big" number, spread normalization to seconds */
- tmo = usec / 1000; /* start to normalize for usec to ticks per sec */
- tmo *= CONFIG_SYS_HZ; /* find number of "ticks" to wait to achieve target */
- tmo /= 1000; /* finish normalize. */
- } else { /* else small number, don't kill it prior to HZ multiply */
- tmo = usec * CONFIG_SYS_HZ;
- tmo /= (1000*1000);
- }
-
- tmp = get_timer (0); /* get current timestamp */
- if ( (tmo + tmp + 1) < tmp )/* if setting this forward will roll time stamp */
- reset_timer_masked (); /* reset "advancing" timestamp to 0, set lastinc value */
- else
- tmo += tmp; /* else, set advancing stamp wake up time */
- while (get_timer_masked () < tmo)/* loop till event */
- /*NOP*/;
-}
-
-void reset_timer_masked (void)
-{
- /* reset time */
- lastinc = READ_TIMER; /* capture current incrementer value time */
- timestamp = 0; /* start "advancing" time stamp from 0 */
-}
-
-ulong get_timer_masked (void)
-{
- ulong now = READ_TIMER; /* current tick value */
-
- if (now >= lastinc) /* normal mode (non roll) */
- timestamp += (now - lastinc); /* move stamp fordward with absoulte diff ticks */
- else /* we have rollover of incrementer */
- timestamp += (0xFFFFFFFF - lastinc) + now;
- lastinc = now;
- return timestamp;
-}
-
-/* waits specified delay value and resets timestamp */
-void udelay_masked (unsigned long usec)
-{
- ulong tmo;
- ulong endtime;
- signed long diff;
-
- if (usec >= 1000) { /* if "big" number, spread normalization to seconds */
- tmo = usec / 1000; /* start to normalize for usec to ticks per sec */
- tmo *= CONFIG_SYS_HZ; /* find number of "ticks" to wait to achieve target */
- tmo /= 1000; /* finish normalize. */
- } else { /* else small number, don't kill it prior to HZ multiply */
- 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)
-{
- ulong tbclk;
- tbclk = CONFIG_SYS_HZ;
- return tbclk;
-}