X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Farm%2Fmach-h720x%2Fcpu-h7201.c;fp=arch%2Farm%2Fmach-h720x%2Fcpu-h7201.c;h=30f4d61184b9a8b926430d777c5a9d4a143126a3;hb=a2c21200f1c81b08cb55e417b68150bba439b646;hp=0000000000000000000000000000000000000000;hpb=9bf4aaab3e101692164d49b7ca357651eb691cb6;p=linux-2.6.git

diff --git a/arch/arm/mach-h720x/cpu-h7201.c b/arch/arm/mach-h720x/cpu-h7201.c
new file mode 100644
index 000000000..30f4d6118
--- /dev/null
+++ b/arch/arm/mach-h720x/cpu-h7201.c
@@ -0,0 +1,59 @@
+/*
+ * linux/arch/arm/mach-h720x/cpu-h7201.c
+ *
+ * Copyright (C) 2003 Thomas Gleixner <tglx@linutronix.de>
+ *               2003 Robert Schwebel <r.schwebel@pengutronix.de>
+ *               2004 Sascha Hauer    <s.hauer@pengutronix.de>
+ *
+ * processor specific stuff for the Hynix h7201
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <asm/types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/arch/irqs.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/time.h>
+
+extern unsigned long h720x_gettimeoffset(void);
+extern void __init h720x_init_irq (void);
+
+/*
+ * Timer interrupt handler
+ */
+static irqreturn_t
+h7201_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	CPU_REG (TIMER_VIRT, TIMER_TOPSTAT);
+	timer_tick(regs);
+	return IRQ_HANDLED;
+}
+
+static struct irqaction h7201_timer_irq = {
+	.name		= "h7201 Timer Tick",
+	.flags		= SA_INTERRUPT,
+	.handler	= h7201_timer_interrupt
+};
+
+/*
+ * Setup TIMER0 as system timer
+ */
+void __init h7201_init_time(void)
+{
+	gettimeoffset = h720x_gettimeoffset;
+
+	CPU_REG (TIMER_VIRT, TM0_PERIOD) = LATCH;
+	CPU_REG (TIMER_VIRT, TM0_CTRL) = TM_RESET;
+	CPU_REG (TIMER_VIRT, TM0_CTRL) = TM_REPEAT | TM_START;
+	CPU_REG (TIMER_VIRT, TIMER_TOPCTRL) = ENABLE_TM0_INTR | TIMER_ENABLE_BIT;
+
+	setup_irq(IRQ_TIMER0, &h7201_timer_irq);
+}