From 8a9618f5dfca35edb0d7ab6374ff586e2e9e989b Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 6 Oct 2010 16:18:08 +0100 Subject: ARM: 6432/1: move timer-sp.c from versatile to common From: Rob Herring The timer-sp h/w used on versatile platforms can also be used for other platforms, so move it to a common location. Signed-off-by: Rob Herring Signed-off-by: Russell King --- arch/arm/plat-versatile/Makefile | 1 - arch/arm/plat-versatile/include/plat/timer-sp.h | 2 - arch/arm/plat-versatile/timer-sp.c | 156 ------------------------ 3 files changed, 159 deletions(-) delete mode 100644 arch/arm/plat-versatile/include/plat/timer-sp.h delete mode 100644 arch/arm/plat-versatile/timer-sp.c (limited to 'arch/arm/plat-versatile') diff --git a/arch/arm/plat-versatile/Makefile b/arch/arm/plat-versatile/Makefile index 5cf88e8427b1..aaa571d17924 100644 --- a/arch/arm/plat-versatile/Makefile +++ b/arch/arm/plat-versatile/Makefile @@ -1,5 +1,4 @@ obj-y := clock.o -obj-$(CONFIG_ARM_TIMER_SP804) += timer-sp.o obj-$(CONFIG_ARCH_REALVIEW) += sched-clock.o obj-$(CONFIG_ARCH_VERSATILE) += sched-clock.o ifeq ($(CONFIG_LEDS_CLASS),y) diff --git a/arch/arm/plat-versatile/include/plat/timer-sp.h b/arch/arm/plat-versatile/include/plat/timer-sp.h deleted file mode 100644 index 21e75e30d497..000000000000 --- a/arch/arm/plat-versatile/include/plat/timer-sp.h +++ /dev/null @@ -1,2 +0,0 @@ -void sp804_clocksource_init(void __iomem *); -void sp804_clockevents_init(void __iomem *, unsigned int); diff --git a/arch/arm/plat-versatile/timer-sp.c b/arch/arm/plat-versatile/timer-sp.c deleted file mode 100644 index fb0d1c299718..000000000000 --- a/arch/arm/plat-versatile/timer-sp.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * linux/arch/arm/plat-versatile/timer-sp.c - * - * Copyright (C) 1999 - 2003 ARM Limited - * Copyright (C) 2000 Deep Blue Solutions Ltd - * - * 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 -#include -#include - -#include - -#include - -/* - * These timers are currently always setup to be clocked at 1MHz. - */ -#define TIMER_FREQ_KHZ (1000) -#define TIMER_RELOAD (TIMER_FREQ_KHZ * 1000 / HZ) - -static void __iomem *clksrc_base; - -static cycle_t sp804_read(struct clocksource *cs) -{ - return ~readl(clksrc_base + TIMER_VALUE); -} - -static struct clocksource clocksource_sp804 = { - .name = "timer3", - .rating = 200, - .read = sp804_read, - .mask = CLOCKSOURCE_MASK(32), - .shift = 20, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -void __init sp804_clocksource_init(void __iomem *base) -{ - struct clocksource *cs = &clocksource_sp804; - - clksrc_base = base; - - /* setup timer 0 as free-running clocksource */ - writel(0, clksrc_base + TIMER_CTRL); - writel(0xffffffff, clksrc_base + TIMER_LOAD); - writel(0xffffffff, clksrc_base + TIMER_VALUE); - writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC, - clksrc_base + TIMER_CTRL); - - cs->mult = clocksource_khz2mult(TIMER_FREQ_KHZ, cs->shift); - clocksource_register(cs); -} - - -static void __iomem *clkevt_base; - -/* - * IRQ handler for the timer - */ -static irqreturn_t sp804_timer_interrupt(int irq, void *dev_id) -{ - struct clock_event_device *evt = dev_id; - - /* clear the interrupt */ - writel(1, clkevt_base + TIMER_INTCLR); - - evt->event_handler(evt); - - return IRQ_HANDLED; -} - -static void sp804_set_mode(enum clock_event_mode mode, - struct clock_event_device *evt) -{ - unsigned long ctrl = TIMER_CTRL_32BIT | TIMER_CTRL_IE; - - writel(ctrl, clkevt_base + TIMER_CTRL); - - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - writel(TIMER_RELOAD, clkevt_base + TIMER_LOAD); - ctrl |= TIMER_CTRL_PERIODIC | TIMER_CTRL_ENABLE; - break; - - case CLOCK_EVT_MODE_ONESHOT: - /* period set, and timer enabled in 'next_event' hook */ - ctrl |= TIMER_CTRL_ONESHOT; - break; - - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - default: - break; - } - - writel(ctrl, clkevt_base + TIMER_CTRL); -} - -static int sp804_set_next_event(unsigned long next, - struct clock_event_device *evt) -{ - unsigned long ctrl = readl(clkevt_base + TIMER_CTRL); - - writel(next, clkevt_base + TIMER_LOAD); - writel(ctrl | TIMER_CTRL_ENABLE, clkevt_base + TIMER_CTRL); - - return 0; -} - -static struct clock_event_device sp804_clockevent = { - .name = "timer0", - .shift = 32, - .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .set_mode = sp804_set_mode, - .set_next_event = sp804_set_next_event, - .rating = 300, - .cpumask = cpu_all_mask, -}; - -static struct irqaction sp804_timer_irq = { - .name = "timer", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, - .handler = sp804_timer_interrupt, - .dev_id = &sp804_clockevent, -}; - -void __init sp804_clockevents_init(void __iomem *base, unsigned int timer_irq) -{ - struct clock_event_device *evt = &sp804_clockevent; - - clkevt_base = base; - - evt->irq = timer_irq; - evt->mult = div_sc(TIMER_FREQ_KHZ, NSEC_PER_MSEC, evt->shift); - evt->max_delta_ns = clockevent_delta2ns(0xffffffff, evt); - evt->min_delta_ns = clockevent_delta2ns(0xf, evt); - - setup_irq(timer_irq, &sp804_timer_irq); - clockevents_register_device(evt); -} -- cgit v1.2.3-59-g8ed1b