From b54384e3ba6b5535751f317fcd3940a53eed0d3a Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Fri, 15 May 2009 23:47:02 +0200 Subject: 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 --- cpu/pxa/interrupts.c | 127 --------------------------------------------------- 1 file changed, 127 deletions(-) delete mode 100644 cpu/pxa/interrupts.c (limited to 'cpu/pxa/interrupts.c') diff --git a/cpu/pxa/interrupts.c b/cpu/pxa/interrupts.c deleted file mode 100644 index 2bc5c50..0000000 --- a/cpu/pxa/interrupts.c +++ /dev/null @@ -1,127 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Marius Groeger - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Alex Zuepke - * - * 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 -#include -#include - -#ifdef CONFIG_USE_IRQ -#error: interrupts not implemented yet -#endif - -#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS) -#define TIMER_FREQ_HZ 3250000 -#elif defined(CONFIG_PXA250) -#define TIMER_FREQ_HZ 3686400 -#else -#error "Timer frequency unknown - please config PXA CPU type" -#endif - -static inline unsigned long long tick_to_time(unsigned long long tick) -{ - tick *= CONFIG_SYS_HZ; - do_div(tick, TIMER_FREQ_HZ); - return tick; -} - -static inline unsigned long long us_to_tick(unsigned long long us) -{ - us = us * TIMER_FREQ_HZ + 999999; - do_div(us, 1000000); - return us; -} - -int interrupt_init (void) -{ - /* nothing happens here - we don't setup any IRQs */ - return (0); -} - -void reset_timer (void) -{ - reset_timer_masked (); -} - -ulong get_timer (ulong base) -{ - return get_timer_masked () - base; -} - -void set_timer (ulong t) -{ - /* nop */ -} - -void udelay (unsigned long usec) -{ - udelay_masked (usec); -} - - -void reset_timer_masked (void) -{ - OSCR = 0; -} - -ulong get_timer_masked (void) -{ - return tick_to_time(get_ticks()); -} - -void udelay_masked (unsigned long usec) -{ - unsigned long long tmp; - ulong tmo; - - tmo = us_to_tick(usec); - tmp = get_ticks() + tmo; /* get current timestamp */ - - while (get_ticks() < tmp) /* loop till event */ - /*NOP*/; - -} - -/* - * 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 OSCR; -} - -/* - * 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 = TIMER_FREQ_HZ; - return tbclk; -} -- cgit v1.1