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Diffstat (limited to 'arch/arm/plat-stmp3xxx/timer.c')
-rw-r--r--arch/arm/plat-stmp3xxx/timer.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/arch/arm/plat-stmp3xxx/timer.c b/arch/arm/plat-stmp3xxx/timer.c
deleted file mode 100644
index c395630a6edc..000000000000
--- a/arch/arm/plat-stmp3xxx/timer.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * System timer for Freescale STMP37XX/STMP378X
- *
- * Embedded Alley Solutions, Inc <source@embeddedalley.com>
- *
- * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
- */
-
-/*
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-
-#include <asm/mach/time.h>
-#include <mach/stmp3xxx.h>
-#include <mach/platform.h>
-#include <mach/regs-timrot.h>
-
-static irqreturn_t
-stmp3xxx_timer_interrupt(int irq, void *dev_id)
-{
- struct clock_event_device *c = dev_id;
-
- /* timer 0 */
- if (__raw_readl(REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0) &
- BM_TIMROT_TIMCTRLn_IRQ) {
- stmp3xxx_clearl(BM_TIMROT_TIMCTRLn_IRQ,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0);
- c->event_handler(c);
- }
-
- /* timer 1 */
- else if (__raw_readl(REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1)
- & BM_TIMROT_TIMCTRLn_IRQ) {
- stmp3xxx_clearl(BM_TIMROT_TIMCTRLn_IRQ,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1);
- stmp3xxx_clearl(BM_TIMROT_TIMCTRLn_IRQ_EN,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1);
- __raw_writel(0xFFFF, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1);
- }
-
- return IRQ_HANDLED;
-}
-
-static cycle_t stmp3xxx_clock_read(struct clocksource *cs)
-{
- return ~((__raw_readl(REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1)
- & 0xFFFF0000) >> 16);
-}
-
-static int
-stmp3xxx_timrot_set_next_event(unsigned long delta,
- struct clock_event_device *dev)
-{
- /* reload the timer */
- __raw_writel(delta, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT0);
- return 0;
-}
-
-static void
-stmp3xxx_timrot_set_mode(enum clock_event_mode mode,
- struct clock_event_device *dev)
-{
-}
-
-static struct clock_event_device ckevt_timrot = {
- .name = "timrot",
- .features = CLOCK_EVT_FEAT_ONESHOT,
- .shift = 32,
- .set_next_event = stmp3xxx_timrot_set_next_event,
- .set_mode = stmp3xxx_timrot_set_mode,
-};
-
-static struct clocksource cksrc_stmp3xxx = {
- .name = "cksrc_stmp3xxx",
- .rating = 250,
- .read = stmp3xxx_clock_read,
- .mask = CLOCKSOURCE_MASK(16),
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static struct irqaction stmp3xxx_timer_irq = {
- .name = "stmp3xxx_timer",
- .flags = IRQF_DISABLED | IRQF_TIMER,
- .handler = stmp3xxx_timer_interrupt,
- .dev_id = &ckevt_timrot,
-};
-
-
-/*
- * Set up timer interrupt, and return the current time in seconds.
- */
-static void __init stmp3xxx_init_timer(void)
-{
- ckevt_timrot.mult = div_sc(CLOCK_TICK_RATE, NSEC_PER_SEC,
- ckevt_timrot.shift);
- ckevt_timrot.min_delta_ns = clockevent_delta2ns(2, &ckevt_timrot);
- ckevt_timrot.max_delta_ns = clockevent_delta2ns(0xFFF, &ckevt_timrot);
- ckevt_timrot.cpumask = cpumask_of(0);
-
- stmp3xxx_reset_block(REGS_TIMROT_BASE, false);
-
- /* clear two timers */
- __raw_writel(0, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT0);
- __raw_writel(0, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1);
-
- /* configure them */
- __raw_writel(
- (8 << BP_TIMROT_TIMCTRLn_SELECT) | /* 32 kHz */
- BM_TIMROT_TIMCTRLn_RELOAD |
- BM_TIMROT_TIMCTRLn_UPDATE |
- BM_TIMROT_TIMCTRLn_IRQ_EN,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0);
- __raw_writel(
- (8 << BP_TIMROT_TIMCTRLn_SELECT) | /* 32 kHz */
- BM_TIMROT_TIMCTRLn_RELOAD |
- BM_TIMROT_TIMCTRLn_UPDATE |
- BM_TIMROT_TIMCTRLn_IRQ_EN,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1);
-
- __raw_writel(CLOCK_TICK_RATE / HZ - 1,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT0);
- __raw_writel(0xFFFF, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1);
-
- setup_irq(IRQ_TIMER0, &stmp3xxx_timer_irq);
-
- clocksource_register_hz(&cksrc_stmp3xxx, CLOCK_TICK_RATE);
- clockevents_register_device(&ckevt_timrot);
-}
-
-#ifdef CONFIG_PM
-
-void stmp3xxx_suspend_timer(void)
-{
- stmp3xxx_clearl(BM_TIMROT_TIMCTRLn_IRQ_EN | BM_TIMROT_TIMCTRLn_IRQ,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0);
- stmp3xxx_setl(BM_TIMROT_ROTCTRL_CLKGATE,
- REGS_TIMROT_BASE + HW_TIMROT_ROTCTRL);
-}
-
-void stmp3xxx_resume_timer(void)
-{
- stmp3xxx_clearl(BM_TIMROT_ROTCTRL_SFTRST | BM_TIMROT_ROTCTRL_CLKGATE,
- REGS_TIMROT_BASE + HW_TIMROT_ROTCTRL);
- __raw_writel(
- 8 << BP_TIMROT_TIMCTRLn_SELECT | /* 32 kHz */
- BM_TIMROT_TIMCTRLn_RELOAD |
- BM_TIMROT_TIMCTRLn_UPDATE |
- BM_TIMROT_TIMCTRLn_IRQ_EN,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL0);
- __raw_writel(
- 8 << BP_TIMROT_TIMCTRLn_SELECT | /* 32 kHz */
- BM_TIMROT_TIMCTRLn_RELOAD |
- BM_TIMROT_TIMCTRLn_UPDATE |
- BM_TIMROT_TIMCTRLn_IRQ_EN,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCTRL1);
- __raw_writel(CLOCK_TICK_RATE / HZ - 1,
- REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT0);
- __raw_writel(0xFFFF, REGS_TIMROT_BASE + HW_TIMROT_TIMCOUNT1);
-}
-
-#else
-
-#define stmp3xxx_suspend_timer NULL
-#define stmp3xxx_resume_timer NULL
-
-#endif /* CONFIG_PM */
-
-struct sys_timer stmp3xxx_timer = {
- .init = stmp3xxx_init_timer,
- .suspend = stmp3xxx_suspend_timer,
- .resume = stmp3xxx_resume_timer,
-};