patch-2.4.14 linux/include/asm-arm/arch-epxa10db/time.h

• Lines: 62
• Date: Thu Oct 25 13:53:53 2001
• Orig file: v2.4.13/linux/include/asm-arm/arch-epxa10db/time.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.13/linux/include/asm-arm/arch-epxa10db/time.h linux/include/asm-arm/arch-epxa10db/time.h
@@ -0,0 +1,61 @@
+/*
+ *  linux/include/asm-arm/arch-epxa10db/time.h
+ *
+ *  Copyright (C) 2001 Altera Corporation
+ * 
+ * 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 <linux/config.h>
+#include <asm/system.h>
+#include <asm/leds.h>
+#include <asm/arch/hardware.h>
+#define TIMER00_TYPE (volatile unsigned int*)
+#include <asm/arch/timer00.h>
+
+
+/*
+ * IRQ handler for the timer
+ */
+static void excalibur_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;
+
+	do_leds();
+	do_timer(regs);
+	do_profile(regs);
+}
+
+/*
+ * Set up timer interrupt, and return the current time in seconds.
+ */
+extern __inline__ void setup_timer(void)
+{
+
+
+	timer_irq.handler = excalibur_timer_interrupt;
+
+
+	/* 
+	 * Make irqs happen for the system timer
+	 */
+	setup_arm_irq(IRQ_TIMER0, &timer_irq);
+
+	/* Start the timer */
+	*TIMER0_LIMIT(IO_ADDRESS(EXC_TIMER00_BASE))=(unsigned int)(EXC_AHB2_CLK_FREQUENCY/50);
+	*TIMER0_PRESCALE(IO_ADDRESS(EXC_TIMER00_BASE))=1;
+	*TIMER0_CR(IO_ADDRESS(EXC_TIMER00_BASE))=TIMER0_CR_IE_MSK | TIMER0_CR_S_MSK;
+}