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Diffstat (limited to 'arch/arm/mach-picoxcell/time.c')
| -rw-r--r-- | arch/arm/mach-picoxcell/time.c | 121 | 
1 files changed, 0 insertions, 121 deletions
diff --git a/arch/arm/mach-picoxcell/time.c b/arch/arm/mach-picoxcell/time.c deleted file mode 100644 index 2ecba6743b8..00000000000 --- a/arch/arm/mach-picoxcell/time.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright (c) 2011 Picochip Ltd., Jamie Iles - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * All enquiries to support@picochip.com - */ -#include <linux/dw_apb_timer.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/of_irq.h> - -#include <asm/mach/time.h> -#include <asm/sched_clock.h> - -#include "common.h" - -static void timer_get_base_and_rate(struct device_node *np, -				    void __iomem **base, u32 *rate) -{ -	*base = of_iomap(np, 0); - -	if (!*base) -		panic("Unable to map regs for %s", np->name); - -	if (of_property_read_u32(np, "clock-freq", rate)) -		panic("No clock-freq property for %s", np->name); -} - -static void picoxcell_add_clockevent(struct device_node *event_timer) -{ -	void __iomem *iobase; -	struct dw_apb_clock_event_device *ced; -	u32 irq, rate; - -	irq = irq_of_parse_and_map(event_timer, 0); -	if (irq == NO_IRQ) -		panic("No IRQ for clock event timer"); - -	timer_get_base_and_rate(event_timer, &iobase, &rate); - -	ced = dw_apb_clockevent_init(0, event_timer->name, 300, iobase, irq, -				     rate); -	if (!ced) -		panic("Unable to initialise clockevent device"); - -	dw_apb_clockevent_register(ced); -} - -static void picoxcell_add_clocksource(struct device_node *source_timer) -{ -	void __iomem *iobase; -	struct dw_apb_clocksource *cs; -	u32 rate; - -	timer_get_base_and_rate(source_timer, &iobase, &rate); - -	cs = dw_apb_clocksource_init(300, source_timer->name, iobase, rate); -	if (!cs) -		panic("Unable to initialise clocksource device"); - -	dw_apb_clocksource_start(cs); -	dw_apb_clocksource_register(cs); -} - -static void __iomem *sched_io_base; - -static u32 picoxcell_read_sched_clock(void) -{ -	return __raw_readl(sched_io_base); -} - -static const struct of_device_id picoxcell_rtc_ids[] __initconst = { -	{ .compatible = "picochip,pc3x2-rtc" }, -	{ /* Sentinel */ }, -}; - -static void picoxcell_init_sched_clock(void) -{ -	struct device_node *sched_timer; -	u32 rate; - -	sched_timer = of_find_matching_node(NULL, picoxcell_rtc_ids); -	if (!sched_timer) -		panic("No RTC for sched clock to use"); - -	timer_get_base_and_rate(sched_timer, &sched_io_base, &rate); -	of_node_put(sched_timer); - -	setup_sched_clock(picoxcell_read_sched_clock, 32, rate); -} - -static const struct of_device_id picoxcell_timer_ids[] __initconst = { -	{ .compatible = "picochip,pc3x2-timer" }, -	{}, -}; - -static void __init picoxcell_timer_init(void) -{ -	struct device_node *event_timer, *source_timer; - -	event_timer = of_find_matching_node(NULL, picoxcell_timer_ids); -	if (!event_timer) -		panic("No timer for clockevent"); -	picoxcell_add_clockevent(event_timer); - -	source_timer = of_find_matching_node(event_timer, picoxcell_timer_ids); -	if (!source_timer) -		panic("No timer for clocksource"); -	picoxcell_add_clocksource(source_timer); - -	of_node_put(source_timer); - -	picoxcell_init_sched_clock(); -} - -struct sys_timer picoxcell_timer = { -	.init = picoxcell_timer_init, -};  |