#include <common.h>
-#include <asm/mcftimer.h>
#include <asm/timer.h>
#include <asm/immap.h>
-#ifdef CONFIG_M5271
-#include <asm/m5271.h>
-#include <asm/immap_5271.h>
-#endif
-
-#ifdef CONFIG_M5272
-#include <asm/m5272.h>
-#include <asm/immap_5272.h>
-#endif
-
-#ifdef CONFIG_M5282
-#include <asm/m5282.h>
-#endif
-
-#ifdef CONFIG_M5249
-#include <asm/m5249.h>
-#include <asm/immap_5249.h>
-#endif
-
DECLARE_GLOBAL_DATA_PTR;
static ulong timestamp;
-#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
-static unsigned short lastinc;
-#endif
-
-#if defined(CONFIG_M5272)
-/*
- * We use timer 3 which is running with a period of 1 us
- */
-void udelay(unsigned long usec)
-{
- volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE3);
- uint start, now, tmp;
-
- while (usec > 0) {
- if (usec > 65000)
- tmp = 65000;
- else
- tmp = usec;
- usec = usec - tmp;
-
- /* Set up TIMER 3 as timebase clock */
- timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
- timerp->timer_tcn = 0;
- /* set period to 1 us */
- timerp->timer_tmr =
- (((CFG_CLK / 1000000) -
- 1) << 8) | MCFTIMER_TMR_CLK1 | MCFTIMER_TMR_FREERUN |
- MCFTIMER_TMR_ENABLE;
-
- start = now = timerp->timer_tcn;
- while (now < start + tmp)
- now = timerp->timer_tcn;
- }
-}
-
-void mcf_timer_interrupt(void *not_used)
-{
- volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE4);
- volatile intctrl_t *intp = (intctrl_t *) (CFG_MBAR + MCFSIM_ICR1);
-
- /* check for timer 4 interrupts */
- if ((intp->int_isr & 0x01000000) != 0) {
- return;
- }
-
- /* reset timer */
- timerp->timer_ter = MCFTIMER_TER_CAP | MCFTIMER_TER_REF;
- timestamp++;
-}
-
-void timer_init(void)
-{
- volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE4);
- volatile intctrl_t *intp = (intctrl_t *) (CFG_MBAR + MCFSIM_ICR1);
-
- timestamp = 0;
-
- /* Set up TIMER 4 as clock */
- timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
-
- /* initialize and enable timer 4 interrupt */
- irq_install_handler(72, mcf_timer_interrupt, 0);
- intp->int_icr1 |= 0x0000000d;
-
- timerp->timer_tcn = 0;
- timerp->timer_trr = 1000; /* Interrupt every ms */
- /* set a period of 1us, set timer mode to restart and enable timer and interrupt */
- timerp->timer_tmr =
- (((CFG_CLK / 1000000) -
- 1) << 8) | MCFTIMER_TMR_CLK1 | MCFTIMER_TMR_RESTART |
- MCFTIMER_TMR_ENORI | MCFTIMER_TMR_ENABLE;
-}
-
-void reset_timer(void)
-{
- timestamp = 0;
-}
-
-ulong get_timer(ulong base)
-{
- return (timestamp - base);
-}
-
-void set_timer(ulong t)
-{
- timestamp = t;
-}
-#endif
-
-#if defined(CONFIG_M5282) || defined(CONFIG_M5271)
-
-void udelay(unsigned long usec)
-{
- volatile unsigned short *timerp;
- uint tmp;
-
- timerp = (volatile unsigned short *)(CFG_MBAR + MCFTIMER_BASE3);
-
- while (usec > 0) {
- if (usec > 65000)
- tmp = 65000;
- else
- tmp = usec;
- usec = usec - tmp;
-
- /* Set up TIMER 3 as timebase clock */
- timerp[MCFTIMER_PCSR] = MCFTIMER_PCSR_OVW;
- timerp[MCFTIMER_PMR] = 0;
- /* set period to 1 us */
- timerp[MCFTIMER_PCSR] =
-#ifdef CONFIG_M5271
- (6 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
-#else /* !CONFIG_M5271 */
- (5 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
-#endif /* CONFIG_M5271 */
-
- timerp[MCFTIMER_PMR] = tmp;
- while (timerp[MCFTIMER_PCNTR] > 0) ;
- }
-}
-
-void timer_init(void)
-{
- volatile unsigned short *timerp;
-
- timerp = (volatile unsigned short *)(CFG_MBAR + MCFTIMER_BASE4);
- timestamp = 0;
-
- /* Set up TIMER 4 as poll clock */
- timerp[MCFTIMER_PCSR] = MCFTIMER_PCSR_OVW;
- timerp[MCFTIMER_PMR] = lastinc = 0;
- timerp[MCFTIMER_PCSR] =
-#ifdef CONFIG_M5271
- (6 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
-#else /* !CONFIG_M5271 */
- (5 << 8) | MCFTIMER_PCSR_EN | MCFTIMER_PCSR_OVW;
-#endif /* CONFIG_M5271 */
-}
-
-void set_timer(ulong t)
-{
- volatile unsigned short *timerp;
-
- timerp = (volatile unsigned short *)(CFG_MBAR + MCFTIMER_BASE4);
- timestamp = 0;
- timerp[MCFTIMER_PMR] = lastinc = 0;
-}
-
-ulong get_timer(ulong base)
-{
- unsigned short now, diff;
- volatile unsigned short *timerp;
-
- timerp = (volatile unsigned short *)(CFG_MBAR + MCFTIMER_BASE4);
- now = timerp[MCFTIMER_PCNTR];
- diff = -(now - lastinc);
-
- timestamp += diff;
- lastinc = now;
- return timestamp - base;
-}
-
-void wait_ticks(unsigned long ticks)
-{
- set_timer(0);
- while (get_timer(0) < ticks) ;
-}
-#endif
-
-#if defined(CONFIG_M5249)
-/*
- * We use timer 1 which is running with a period of 1 us
- */
-void udelay(unsigned long usec)
-{
- volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE1);
- uint start, now, tmp;
-
- while (usec > 0) {
- if (usec > 65000)
- tmp = 65000;
- else
- tmp = usec;
- usec = usec - tmp;
-
- /* Set up TIMER 1 as timebase clock */
- timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
- timerp->timer_tcn = 0;
- /* set period to 1 us */
- /* on m5249 the system clock is (cpu_clk / 2) -> divide by 2000000 */
- timerp->timer_tmr =
- (((CFG_CLK / 2000000) -
- 1) << 8) | MCFTIMER_TMR_CLK1 | MCFTIMER_TMR_FREERUN |
- MCFTIMER_TMR_ENABLE;
-
- start = now = timerp->timer_tcn;
- while (now < start + tmp)
- now = timerp->timer_tcn;
- }
-}
-
-void mcf_timer_interrupt(void *not_used)
-{
- volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE2);
-
- /* check for timer 2 interrupts */
- if ((mbar_readLong(MCFSIM_IPR) & 0x00000400) == 0) {
- return;
- }
-
- /* reset timer */
- timerp->timer_ter = MCFTIMER_TER_CAP | MCFTIMER_TER_REF;
- timestamp++;
-}
-
-void timer_init(void)
-{
- volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE2);
-
- timestamp = 0;
-
- /* Set up TIMER 2 as clock */
- timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
-
- /* initialize and enable timer 2 interrupt */
- irq_install_handler(31, mcf_timer_interrupt, 0);
- mbar_writeLong(MCFSIM_IMR, mbar_readLong(MCFSIM_IMR) & ~0x00000400);
- mbar_writeByte(MCFSIM_TIMER2ICR,
- MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 |
- MCFSIM_ICR_PRI3);
-
- timerp->timer_tcn = 0;
- timerp->timer_trr = 1000; /* Interrupt every ms */
- /* set a period of 1us, set timer mode to restart and enable timer and interrupt */
- /* on m5249 the system clock is (cpu_clk / 2) -> divide by 2000000 */
- timerp->timer_tmr =
- (((CFG_CLK / 2000000) -
- 1) << 8) | MCFTIMER_TMR_CLK1 | MCFTIMER_TMR_RESTART |
- MCFTIMER_TMR_ENORI | MCFTIMER_TMR_ENABLE;
-}
-
-void reset_timer(void)
-{
- timestamp = 0;
-}
-
-ulong get_timer(ulong base)
-{
- return (timestamp - base);
-}
-
-void set_timer(ulong t)
-{
- timestamp = t;
-}
-#endif
#if defined(CONFIG_MCFTMR)
#ifndef CFG_UDELAY_BASE
void dtimer_interrupt(void *not_used)
{
volatile dtmr_t *timerp = (dtmr_t *) (CFG_TMR_BASE);
- volatile int0_t *intp = (int0_t *) (CFG_INTR_BASE);
/* check for timer interrupt asserted */
- if ((intp->iprh0 & CFG_TMRINTR_MASK) == CFG_TMRINTR_MASK) {
+ if ((CFG_TMRPND_REG & CFG_TMRINTR_MASK) == CFG_TMRINTR_PEND) {
timerp->ter = (DTIM_DTER_CAP | DTIM_DTER_REF);
timestamp++;
return;
projects / karo-tx-uboot.git / blobdiff