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, 137 deletions

diff --git a/cpu/arm925t/interrupts.c b/cpu/arm925t/interrupts.c
deleted file mode 100644
index 179992debe..0000000000
--- a/cpu/arm925t/interrupts.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * (C) Copyright 2009
- * 2N Telekomunikace, <www.2n.cz>
- *
- * (C) Copyright 2003
- * Texas Instruments, <www.ti.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>
- *
- * (C) Copyright 2002
- * Gary Jennejohn, DENX Software Engineering, <garyj@denx.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 <arm925t.h>
-#include <configs/omap1510.h>
-#include <asm/io.h>
-
-#define TIMER_LOAD_VAL	0xffffffff
-#define TIMER_CLOCK	(CONFIG_SYS_CLK_FREQ / (2 << CONFIG_SYS_PTV))
-
-static uint32_t timestamp;
-static uint32_t lastdec;
-
-/* nothing really to do with interrupts, just starts up a counter. */
-int interrupt_init (void)
-{
-	/* Start the decrementer ticking down from 0xffffffff */
-	__raw_writel(TIMER_LOAD_VAL, CONFIG_SYS_TIMERBASE + LOAD_TIM);
-	__raw_writel(MPUTIM_ST | MPUTIM_AR | MPUTIM_CLOCK_ENABLE |
-		(CONFIG_SYS_PTV << MPUTIM_PTV_BIT),
-		CONFIG_SYS_TIMERBASE + CNTL_TIMER);
-
-	/* init the timestamp and lastdec value */
-	reset_timer_masked();
-
-	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;
-}
-
-/* delay x useconds AND preserve advance timestamp value */
-void udelay (unsigned long usec)
-{
-	int32_t tmo = usec * (TIMER_CLOCK / 1000) / 1000;
-	uint32_t now, last = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);
-
-	while (tmo > 0) {
-		now = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM);
-		if (last < now) /* count down timer underflow */
-			tmo -= TIMER_LOAD_VAL - now + last;
-		else
-			tmo -= last - now;
-		last = now;
-	}
-}
-
-void reset_timer_masked (void)
-{
-	/* reset time */
-	lastdec = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM) /
-			(TIMER_CLOCK / CONFIG_SYS_HZ);
-	timestamp = 0;	       /* start "advancing" time stamp from 0 */
-}
-
-ulong get_timer_masked (void)
-{
-	uint32_t now = __raw_readl(CONFIG_SYS_TIMERBASE + READ_TIM) /
-			(TIMER_CLOCK / CONFIG_SYS_HZ);
-	if (lastdec < now)	/* count down timer underflow */
-		timestamp += TIMER_LOAD_VAL / (TIMER_CLOCK / CONFIG_SYS_HZ) -
-				now + lastdec;
-	else
-		timestamp += lastdec - now;
-	lastdec = now;
-
-	return timestamp;
-}
-
-/*
- * 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)
-{
-	return CONFIG_SYS_HZ;
-}