diff options
Diffstat (limited to 'cpu/mcf547x_8x/slicetimer.c')
-rw-r--r-- | cpu/mcf547x_8x/slicetimer.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/cpu/mcf547x_8x/slicetimer.c b/cpu/mcf547x_8x/slicetimer.c deleted file mode 100644 index 8dc010a..0000000 --- a/cpu/mcf547x_8x/slicetimer.c +++ /dev/null @@ -1,112 +0,0 @@ -/* - * (C) Copyright 2007 Freescale Semiconductor, Inc. - * TsiChung Liew (Tsi-Chung.Liew@freescale.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> - -#include <asm/timer.h> -#include <asm/immap.h> - -DECLARE_GLOBAL_DATA_PTR; - -static ulong timestamp; - -#if defined(CONFIG_SLTTMR) -#ifndef CONFIG_SYS_UDELAY_BASE -# error "uDelay base not defined!" -#endif - -#if !defined(CONFIG_SYS_TMR_BASE) || !defined(CONFIG_SYS_INTR_BASE) || !defined(CONFIG_SYS_TMRINTR_NO) || !defined(CONFIG_SYS_TMRINTR_MASK) -# error "TMR_BASE, INTR_BASE, TMRINTR_NO or TMRINTR_MASk not defined!" -#endif -extern void dtimer_intr_setup(void); - -void __udelay(unsigned long usec) -{ - volatile slt_t *timerp = (slt_t *) (CONFIG_SYS_UDELAY_BASE); - u32 now, freq; - - /* 1 us period */ - freq = CONFIG_SYS_TIMER_PRESCALER; - - timerp->cr = 0; /* Disable */ - timerp->tcnt = usec * freq; - timerp->cr = SLT_CR_TEN; - - now = timerp->cnt; - while (now != 0) - now = timerp->cnt; - - timerp->sr |= SLT_SR_ST; - timerp->cr = 0; -} - -void dtimer_interrupt(void *not_used) -{ - volatile slt_t *timerp = (slt_t *) (CONFIG_SYS_TMR_BASE); - - /* check for timer interrupt asserted */ - if ((CONFIG_SYS_TMRPND_REG & CONFIG_SYS_TMRINTR_MASK) == CONFIG_SYS_TMRINTR_PEND) { - timerp->sr |= SLT_SR_ST; - timestamp++; - return; - } -} - -void timer_init(void) -{ - volatile slt_t *timerp = (slt_t *) (CONFIG_SYS_TMR_BASE); - - timestamp = 0; - - timerp->cr = 0; /* disable timer */ - timerp->tcnt = 0; - timerp->sr = SLT_SR_BE | SLT_SR_ST; /* clear status */ - - /* initialize and enable timer interrupt */ - irq_install_handler(CONFIG_SYS_TMRINTR_NO, dtimer_interrupt, 0); - - /* Interrupt every ms */ - timerp->tcnt = 1000 * CONFIG_SYS_TIMER_PRESCALER; - - dtimer_intr_setup(); - - /* set a period of 1us, set timer mode to restart and - enable timer and interrupt */ - timerp->cr = SLT_CR_RUN | SLT_CR_IEN | SLT_CR_TEN; -} - -void reset_timer(void) -{ - timestamp = 0; -} - -ulong get_timer(ulong base) -{ - return (timestamp - base); -} - -void set_timer(ulong t) -{ - timestamp = t; -} -#endif /* CONFIG_SLTTMR */ |