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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-05-15 23:47:02 +0200
committerWolfgang Denk <wd@denx.de>2009-06-12 20:39:48 +0200
commitb54384e3ba6b5535751f317fcd3940a53eed0d3a (patch)
tree2a2027057af7b2bf1817d530b2ee33ca33e4d660 /cpu/arm920t/ks8695/interrupts.c
parent5b4bebe1d20c4f2b70d48b06aed1016785efcc25 (diff)
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arm: timer and interrupt init rework
actually the timer init use the interrupt_init as init callback which make the interrupt and timer implementation difficult to follow so now rename it as int timer_init(void) and use interrupt_init for interrupt btw also remane the corresponding file to the functionnality implemented as ixp arch implement two timer - one based on interrupt - so all the timer related code is moved to timer.c Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'cpu/arm920t/ks8695/interrupts.c')
-rw-r--r--cpu/arm920t/ks8695/interrupts.c112
1 files changed, 0 insertions, 112 deletions
diff --git a/cpu/arm920t/ks8695/interrupts.c b/cpu/arm920t/ks8695/interrupts.c
deleted file mode 100644
index 883d689..0000000
--- a/cpu/arm920t/ks8695/interrupts.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * (C) Copyright 2004-2005, Greg Ungerer <greg.ungerer@opengear.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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 <common.h>
-#include <asm/arch/platform.h>
-
-/*
- * Handy KS8695 register access functions.
- */
-#define ks8695_read(a) *((volatile ulong *) (KS8695_IO_BASE + (a)))
-#define ks8695_write(a,v) *((volatile ulong *) (KS8695_IO_BASE + (a))) = (v)
-
-int timer_inited;
-ulong timer_ticks;
-
-int interrupt_init (void)
-{
- /* nothing happens here - we don't setup any IRQs */
- return (0);
-}
-
-/*
- * Initial timer set constants. Nothing complicated, just set for a 1ms
- * tick.
- */
-#define TIMER_INTERVAL (TICKS_PER_uSEC * mSEC_1)
-#define TIMER_COUNT (TIMER_INTERVAL / 2)
-#define TIMER_PULSE TIMER_COUNT
-
-void reset_timer_masked(void)
-{
- /* Set the hadware timer for 1ms */
- ks8695_write(KS8695_TIMER1, TIMER_COUNT);
- ks8695_write(KS8695_TIMER1_PCOUNT, TIMER_PULSE);
- ks8695_write(KS8695_TIMER_CTRL, 0x2);
- timer_ticks = 0;
- timer_inited++;
-}
-
-void reset_timer(void)
-{
- reset_timer_masked();
-}
-
-ulong get_timer_masked(void)
-{
- /* Check for timer wrap */
- if (ks8695_read(KS8695_INT_STATUS) & KS8695_INTMASK_TIMERINT1) {
- /* Clear interrupt condition */
- ks8695_write(KS8695_INT_STATUS, KS8695_INTMASK_TIMERINT1);
- timer_ticks++;
- }
- return timer_ticks;
-}
-
-ulong get_timer(ulong base)
-{
- return (get_timer_masked() - base);
-}
-
-void set_timer(ulong t)
-{
- timer_ticks = t;
-}
-
-void udelay(ulong usec)
-{
- ulong start = get_timer_masked();
- ulong end;
-
- if (!timer_inited)
- reset_timer();
-
- /* Only 1ms resolution :-( */
- end = usec / 1000;
- while (get_timer(start) < end)
- ;
-}
-
-void reset_cpu (ulong ignored)
-{
- ulong tc;
-
- /* Set timer0 to watchdog, and let it timeout */
- tc = ks8695_read(KS8695_TIMER_CTRL) & 0x2;
- ks8695_write(KS8695_TIMER_CTRL, tc);
- ks8695_write(KS8695_TIMER0, ((10 << 8) | 0xff));
- ks8695_write(KS8695_TIMER_CTRL, (tc | 0x1));
-
- /* Should only wait here till watchdog resets */
- for (;;)
- ;
-}