Merge branch 'denx-coldfire' into coldfire-aug2007

1 files changed, 218 insertions, 45 deletions

diff --git a/lib_m68k/time.c b/lib_m68k/time.c
index 12e38f0..3dbce07 100644
--- a/lib_m68k/time.c
+++ b/lib_m68k/time.c
@@ -26,6 +26,8 @@
 #include <common.h>
 
 #include <asm/mcftimer.h>
+#include <asm/timer.h>
+#include <asm/immap.h>
 
 #ifdef	CONFIG_M5271
 #include <asm/m5271.h>
@@ -46,13 +48,13 @@
 #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
@@ -73,8 +75,10 @@ void udelay(unsigned long usec)
 		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;
+		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)
@@ -82,7 +86,8 @@ void udelay(unsigned long usec)
 	}
 }
 
-void mcf_timer_interrupt (void * not_used){
+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);
 
@@ -93,10 +98,11 @@ void mcf_timer_interrupt (void * not_used){
 
 	/* reset timer */
 	timerp->timer_ter = MCFTIMER_TER_CAP | MCFTIMER_TER_REF;
-	timestamp ++;
+	timestamp++;
 }
 
-void timer_init (void) {
+void timer_init(void)
+{
 	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE4);
 	volatile intctrl_t *intp = (intctrl_t *) (CFG_MBAR + MCFSIM_ICR1);
 
@@ -106,27 +112,29 @@ void timer_init (void) {
 	timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
 
 	/* initialize and enable timer 4 interrupt */
-	irq_install_handler (72, mcf_timer_interrupt, 0);
+	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;
+	timerp->timer_tmr =
+	    (((CFG_CLK / 1000000) -
+	      1) << 8) | MCFTIMER_TMR_CLK1 | MCFTIMER_TMR_RESTART |
+	    MCFTIMER_TMR_ENORI | MCFTIMER_TMR_ENABLE;
 }
 
-void reset_timer (void)
+void reset_timer(void)
 {
 	timestamp = 0;
 }
 
-ulong get_timer (ulong base)
+ulong get_timer(ulong base)
 {
 	return (timestamp - base);
 }
 
-void set_timer (ulong t)
+void set_timer(ulong t)
 {
 	timestamp = t;
 }
@@ -139,7 +147,7 @@ void udelay(unsigned long usec)
 	volatile unsigned short *timerp;
 	uint tmp;
 
-	timerp = (volatile unsigned short *) (CFG_MBAR + MCFTIMER_BASE3);
+	timerp = (volatile unsigned short *)(CFG_MBAR + MCFTIMER_BASE3);
 
 	while (usec > 0) {
 		if (usec > 65000)
@@ -154,21 +162,21 @@ void udelay(unsigned long usec)
 		/* 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 */
+		    (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);
+		while (timerp[MCFTIMER_PCNTR] > 0) ;
 	}
 }
 
-void timer_init (void)
+void timer_init(void)
 {
 	volatile unsigned short *timerp;
 
-	timerp = (volatile unsigned short *) (CFG_MBAR + MCFTIMER_BASE4);
+	timerp = (volatile unsigned short *)(CFG_MBAR + MCFTIMER_BASE4);
 	timestamp = 0;
 
 	/* Set up TIMER 4 as poll clock */
@@ -176,27 +184,27 @@ void timer_init (void)
 	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 */
+	    (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)
+void set_timer(ulong t)
 {
 	volatile unsigned short *timerp;
 
-	timerp = (volatile unsigned short *) (CFG_MBAR + MCFTIMER_BASE4);
+	timerp = (volatile unsigned short *)(CFG_MBAR + MCFTIMER_BASE4);
 	timestamp = 0;
 	timerp[MCFTIMER_PMR] = lastinc = 0;
 }
 
-ulong get_timer (ulong base)
+ulong get_timer(ulong base)
 {
 	unsigned short now, diff;
 	volatile unsigned short *timerp;
 
-	timerp = (volatile unsigned short *) (CFG_MBAR + MCFTIMER_BASE4);
+	timerp = (volatile unsigned short *)(CFG_MBAR + MCFTIMER_BASE4);
 	now = timerp[MCFTIMER_PCNTR];
 	diff = -(now - lastinc);
 
@@ -205,14 +213,13 @@ ulong get_timer (ulong base)
 	return timestamp - base;
 }
 
-void wait_ticks (unsigned long ticks)
+void wait_ticks(unsigned long ticks)
 {
-	set_timer (0);
-	while (get_timer (0) < 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
@@ -234,8 +241,10 @@ void udelay(unsigned long usec)
 		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;
+		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)
@@ -243,7 +252,8 @@ void udelay(unsigned long usec)
 	}
 }
 
-void mcf_timer_interrupt (void * not_used){
+void mcf_timer_interrupt(void *not_used)
+{
 	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE2);
 
 	/* check for timer 2 interrupts */
@@ -253,10 +263,11 @@ void mcf_timer_interrupt (void * not_used){
 
 	/* reset timer */
 	timerp->timer_ter = MCFTIMER_TER_CAP | MCFTIMER_TER_REF;
-	timestamp ++;
+	timestamp++;
 }
 
-void timer_init (void) {
+void timer_init(void)
+{
 	volatile timer_t *timerp = (timer_t *) (CFG_MBAR + MCFTIMER_BASE2);
 
 	timestamp = 0;
@@ -265,34 +276,196 @@ void timer_init (void) {
 	timerp->timer_tmr = MCFTIMER_TMR_DISABLE;
 
 	/* initialize and enable timer 2 interrupt */
-	irq_install_handler (31, mcf_timer_interrupt, 0);
+	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);
+	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;
+	timerp->timer_tmr =
+	    (((CFG_CLK / 2000000) -
+	      1) << 8) | MCFTIMER_TMR_CLK1 | MCFTIMER_TMR_RESTART |
+	    MCFTIMER_TMR_ENORI | MCFTIMER_TMR_ENABLE;
 }
 
-void reset_timer (void)
+void reset_timer(void)
 {
 	timestamp = 0;
 }
 
-ulong get_timer (ulong base)
+ulong get_timer(ulong base)
 {
 	return (timestamp - base);
 }
 
-void set_timer (ulong t)
+void set_timer(ulong t)
 {
 	timestamp = t;
 }
 #endif
 
+#if defined(CONFIG_MCFTMR)
+#ifndef CFG_UDELAY_BASE
+#	error	"uDelay base not defined!"
+#endif
+
+#if !defined(CFG_TMR_BASE) || !defined(CFG_INTR_BASE) || !defined(CFG_TMRINTR_NO) || !defined(CFG_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 dtmr_t *timerp = (dtmr_t *) (CFG_UDELAY_BASE);
+	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->tmr = DTIM_DTMR_RST_RST;
+		timerp->tcn = 0;
+		/* set period to 1 us */
+		timerp->tmr =
+		    CFG_TIMER_PRESCALER | DTIM_DTMR_CLK_DIV1 | DTIM_DTMR_FRR |
+		    DTIM_DTMR_RST_EN;
+
+		start = now = timerp->tcn;
+		while (now < start + tmp)
+			now = timerp->tcn;
+	}
+}
+
+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) {
+		timerp->ter = (DTIM_DTER_CAP | DTIM_DTER_REF);
+		timestamp++;
+		return;
+	}
+}
+
+void timer_init(void)
+{
+	volatile dtmr_t *timerp = (dtmr_t *) (CFG_TMR_BASE);
+
+	timestamp = 0;
+
+	timerp->tcn = 0;
+	timerp->trr = 0;
+
+	/* Set up TIMER 4 as clock */
+	timerp->tmr = DTIM_DTMR_RST_RST;
+
+	/* initialize and enable timer interrupt */
+	irq_install_handler(CFG_TMRINTR_NO, dtimer_interrupt, 0);
+
+	timerp->tcn = 0;
+	timerp->trr = 1000;	/* Interrupt every ms */
+
+	dtimer_intr_setup();
+
+	/* set a period of 1us, set timer mode to restart and enable timer and interrupt */
+	timerp->tmr = CFG_TIMER_PRESCALER | DTIM_DTMR_CLK_DIV1 |
+	    DTIM_DTMR_FRR | DTIM_DTMR_ORRI | DTIM_DTMR_RST_EN;
+}
+
+void reset_timer(void)
+{
+	timestamp = 0;
+}
+
+ulong get_timer(ulong base)
+{
+	return (timestamp - base);
+}
+
+void set_timer(ulong t)
+{
+	timestamp = t;
+}
+#endif				/* CONFIG_MCFTMR */
+
+#if defined(CONFIG_MCFPIT)
+#if !defined(CFG_PIT_BASE)
+#	error	"CFG_PIT_BASE not defined!"
+#endif
+
+static unsigned short lastinc;
+
+void udelay(unsigned long usec)
+{
+	volatile pit_t *timerp = (pit_t *) (CFG_UDELAY_BASE);
+	uint tmp;
+
+	while (usec > 0) {
+		if (usec > 65000)
+			tmp = 65000;
+		else
+			tmp = usec;
+		usec = usec - tmp;
+
+		/* Set up TIMER 3 as timebase clock */
+		timerp->pcsr = PIT_PCSR_OVW;
+		timerp->pmr = 0;
+		/* set period to 1 us */
+		timerp->pcsr |= PIT_PCSR_PRE(CFG_PIT_PRESCALE) | PIT_PCSR_EN;
+
+		timerp->pmr = tmp;
+		while (timerp->pcntr > 0) ;
+	}
+}
+
+void timer_init(void)
+{
+	volatile pit_t *timerp = (pit_t *) (CFG_PIT_BASE);
+	timestamp = 0;
+
+	/* Set up TIMER 4 as poll clock */
+	timerp->pcsr = PIT_PCSR_OVW;
+	timerp->pmr = lastinc = 0;
+	timerp->pcsr |= PIT_PCSR_PRE(CFG_PIT_PRESCALE) | PIT_PCSR_EN;
+}
+
+void set_timer(ulong t)
+{
+	volatile pit_t *timerp = (pit_t *) (CFG_PIT_BASE);
+
+	timestamp = 0;
+	timerp->pmr = lastinc = 0;
+}
+
+ulong get_timer(ulong base)
+{
+	unsigned short now, diff;
+	volatile pit_t *timerp = (pit_t *) (CFG_PIT_BASE);
+
+	now = timerp->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				/* CONFIG_MCFPIT */
 
 /*
  * This function is derived from PowerPC code (read timebase as long long).
@@ -307,7 +480,7 @@ unsigned long long get_ticks(void)
  * This function is derived from PowerPC code (timebase clock frequency).
  * On M68K it returns the number of timer ticks per second.
  */
-ulong get_tbclk (void)
+ulong get_tbclk(void)
 {
 	ulong tbclk;
 	tbclk = CFG_HZ;