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>

1 files changed, 0 insertions, 160 deletions

diff --git a/cpu/arm920t/at91rm9200/interrupts.c b/cpu/arm920t/at91rm9200/interrupts.c
deleted file mode 100644
index 4c38a9a..0000000
--- a/cpu/arm920t/at91rm9200/interrupts.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * (C) Copyright 2002
- * Lineo, Inc. <www.lineo.com>
- * Bernhard Kuhn <bkuhn@lineo.com>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Alex Zuepke <azu@sysgo.de>
- *
- * 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/io.h>*/
-#include <asm/arch/hardware.h>
-/*#include <asm/proc/ptrace.h>*/
-
-/* the number of clocks per CONFIG_SYS_HZ */
-#define TIMER_LOAD_VAL (CONFIG_SYS_HZ_CLOCK/CONFIG_SYS_HZ)
-
-/* macro to read the 16 bit timer */
-#define READ_TIMER (tmr->TC_CV & 0x0000ffff)
-AT91PS_TC tmr;
-
-static ulong timestamp;
-static ulong lastinc;
-
-int interrupt_init (void)
-{
-	tmr = AT91C_BASE_TC0;
-
-	/* enables TC1.0 clock */
-	*AT91C_PMC_PCER = 1 << AT91C_ID_TC0;  /* enable clock */
-
-	*AT91C_TCB0_BCR = 0;
-	*AT91C_TCB0_BMR = AT91C_TCB_TC0XC0S_NONE | AT91C_TCB_TC1XC1S_NONE | AT91C_TCB_TC2XC2S_NONE;
-	tmr->TC_CCR = AT91C_TC_CLKDIS;
-#define AT91C_TC_CMR_CPCTRG (1 << 14)
-	/* set to MCLK/2 and restart the timer when the vlaue in TC_RC is reached */
-	tmr->TC_CMR = AT91C_TC_TIMER_DIV1_CLOCK | AT91C_TC_CMR_CPCTRG;
-
-	tmr->TC_IDR = ~0ul;
-	tmr->TC_RC = TIMER_LOAD_VAL;
-	lastinc = 0;
-	tmr->TC_CCR = AT91C_TC_SWTRG | AT91C_TC_CLKEN;
-	timestamp = 0;
-
-	return (0);
-}
-
-/*
- * timer without interrupts
- */
-
-void reset_timer (void)
-{
-	reset_timer_masked ();
-}
-
-ulong get_timer (ulong base)
-{
-	return get_timer_masked () - base;
-}
-
-void set_timer (ulong t)
-{
-	timestamp = t;
-}
-
-void udelay (unsigned long usec)
-{
-	udelay_masked(usec);
-}
-
-void reset_timer_masked (void)
-{
-	/* reset time */
-	lastinc = READ_TIMER;
-	timestamp = 0;
-}
-
-ulong get_timer_raw (void)
-{
-	ulong now = READ_TIMER;
-
-	if (now >= lastinc) {
-		/* normal mode */
-		timestamp += now - lastinc;
-	} else {
-		/* we have an overflow ... */
-		timestamp += now + TIMER_LOAD_VAL - lastinc;
-	}
-	lastinc = now;
-
-	return timestamp;
-}
-
-ulong get_timer_masked (void)
-{
-	return get_timer_raw()/TIMER_LOAD_VAL;
-}
-
-void udelay_masked (unsigned long usec)
-{
-	ulong tmo;
-	ulong endtime;
-	signed long diff;
-
-	tmo = CONFIG_SYS_HZ_CLOCK / 1000;
-	tmo *= usec;
-	tmo /= 1000;
-
-	endtime = get_timer_raw () + tmo;
-
-	do {
-		ulong now = get_timer_raw ();
-		diff = endtime - now;
-	} while (diff >= 0);
-}
-
-/*
- * This function is derived from PowerPC code (read timebase as long long).
- * On ARM it just returns the timer value.
- */
-unsigned long long get_ticks(void)
-{
-	return get_timer(0);
-}
-
-/*
- * This function is derived from PowerPC code (timebase clock frequency).
- * On ARM it returns the number of timer ticks per second.
- */
-ulong get_tbclk (void)
-{
-	ulong tbclk;
-
-	tbclk = CONFIG_SYS_HZ;
-	return tbclk;
-}