X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Farm%2Fmach-epxa10db%2Ftime.c;h=7d72a433dad79608a4febb9e29a9ced5ce9b8f5b;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=0c8b9cf7c7b79b36c4750a14214e9edd68245cfa;hpb=db216c3d5e4c040e557a50f8f5d35d5c415e8c1c;p=linux-2.6.git

diff --git a/arch/arm/mach-epxa10db/time.c b/arch/arm/mach-epxa10db/time.c
index 0c8b9cf7c..7d72a433d 100644
--- a/arch/arm/mach-epxa10db/time.c
+++ b/arch/arm/mach-epxa10db/time.c
@@ -10,11 +10,17 @@
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
 
 #include <asm/hardware.h>
+#include <asm/system.h>
+#include <asm/leds.h>
 
+#include <asm/mach/time.h>
 
-extern int (*set_rtc)(void);
+#define TIMER00_TYPE (volatile unsigned int*)
+#include <asm/arch/timer00.h>
 
 static int epxa10db_set_rtc(void)
 {
@@ -29,3 +35,39 @@ static int epxa10db_rtc_init(void)
 }
 
 __initcall(epxa10db_rtc_init);
+
+
+/*
+ * IRQ handler for the timer
+ */
+static irqreturn_t
+epxa10db_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+
+	// ...clear the interrupt
+	*TIMER0_CR(IO_ADDRESS(EXC_TIMER00_BASE))|=TIMER0_CR_CI_MSK;
+
+	timer_tick(regs);
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction epxa10db_timer_irq = {
+	.name		= "Excalibur Timer Tick",
+	.flags		= SA_INTERRUPT,
+	.handler	= epxa10db_timer_interrupt
+};
+
+/*
+ * Set up timer interrupt, and return the current time in seconds.
+ */
+void __init epxa10db_init_time(void)
+{
+	/* Start the timer */
+	*TIMER0_LIMIT(IO_ADDRESS(EXC_TIMER00_BASE))=(unsigned int)(EXC_AHB2_CLK_FREQUENCY/200);
+	*TIMER0_PRESCALE(IO_ADDRESS(EXC_TIMER00_BASE))=1;
+	*TIMER0_CR(IO_ADDRESS(EXC_TIMER00_BASE))=TIMER0_CR_IE_MSK | TIMER0_CR_S_MSK;
+
+	setup_irq(IRQ_TIMER0, &epxa10db_timer_irq);
+}
+