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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/arm/mach-w90x900/time.c | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-w90x900/time.c')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-w90x900/time.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-w90x900/time.c b/ANDROID_3.4.5/arch/arm/mach-w90x900/time.c deleted file mode 100644 index fa27c498..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-w90x900/time.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * linux/arch/arm/mach-w90x900/time.c - * - * Based on linux/arch/arm/plat-s3c24xx/time.c by Ben Dooks - * - * Copyright (c) 2009 Nuvoton technology corporation - * All rights reserved. - * - * Wan ZongShun <mcuos.com@gmail.com> - * - * 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. - * - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/err.h> -#include <linux/clk.h> -#include <linux/io.h> -#include <linux/leds.h> -#include <linux/clocksource.h> -#include <linux/clockchips.h> - -#include <asm/mach-types.h> -#include <asm/mach/irq.h> -#include <asm/mach/time.h> - -#include <mach/map.h> -#include <mach/regs-timer.h> - -#include "nuc9xx.h" - -#define RESETINT 0x1f -#define PERIOD (0x01 << 27) -#define ONESHOT (0x00 << 27) -#define COUNTEN (0x01 << 30) -#define INTEN (0x01 << 29) - -#define TICKS_PER_SEC 100 -#define PRESCALE 0x63 /* Divider = prescale + 1 */ - -#define TDR_SHIFT 24 - -static unsigned int timer0_load; - -static void nuc900_clockevent_setmode(enum clock_event_mode mode, - struct clock_event_device *clk) -{ - unsigned int val; - - val = __raw_readl(REG_TCSR0); - val &= ~(0x03 << 27); - - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - __raw_writel(timer0_load, REG_TICR0); - val |= (PERIOD | COUNTEN | INTEN | PRESCALE); - break; - - case CLOCK_EVT_MODE_ONESHOT: - val |= (ONESHOT | COUNTEN | INTEN | PRESCALE); - break; - - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_RESUME: - break; - } - - __raw_writel(val, REG_TCSR0); -} - -static int nuc900_clockevent_setnextevent(unsigned long evt, - struct clock_event_device *clk) -{ - unsigned int val; - - __raw_writel(evt, REG_TICR0); - - val = __raw_readl(REG_TCSR0); - val |= (COUNTEN | INTEN | PRESCALE); - __raw_writel(val, REG_TCSR0); - - return 0; -} - -static struct clock_event_device nuc900_clockevent_device = { - .name = "nuc900-timer0", - .shift = 32, - .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, - .set_mode = nuc900_clockevent_setmode, - .set_next_event = nuc900_clockevent_setnextevent, - .rating = 300, -}; - -/*IRQ handler for the timer*/ - -static irqreturn_t nuc900_timer0_interrupt(int irq, void *dev_id) -{ - struct clock_event_device *evt = &nuc900_clockevent_device; - - __raw_writel(0x01, REG_TISR); /* clear TIF0 */ - - evt->event_handler(evt); - return IRQ_HANDLED; -} - -static struct irqaction nuc900_timer0_irq = { - .name = "nuc900-timer0", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, - .handler = nuc900_timer0_interrupt, -}; - -static void __init nuc900_clockevents_init(void) -{ - unsigned int rate; - struct clk *clk = clk_get(NULL, "timer0"); - - BUG_ON(IS_ERR(clk)); - - __raw_writel(0x00, REG_TCSR0); - - clk_enable(clk); - rate = clk_get_rate(clk) / (PRESCALE + 1); - - timer0_load = (rate / TICKS_PER_SEC); - - __raw_writel(RESETINT, REG_TISR); - setup_irq(IRQ_TIMER0, &nuc900_timer0_irq); - - nuc900_clockevent_device.mult = div_sc(rate, NSEC_PER_SEC, - nuc900_clockevent_device.shift); - nuc900_clockevent_device.max_delta_ns = clockevent_delta2ns(0xffffffff, - &nuc900_clockevent_device); - nuc900_clockevent_device.min_delta_ns = clockevent_delta2ns(0xf, - &nuc900_clockevent_device); - nuc900_clockevent_device.cpumask = cpumask_of(0); - - clockevents_register_device(&nuc900_clockevent_device); -} - -static void __init nuc900_clocksource_init(void) -{ - unsigned int val; - unsigned int rate; - struct clk *clk = clk_get(NULL, "timer1"); - - BUG_ON(IS_ERR(clk)); - - __raw_writel(0x00, REG_TCSR1); - - clk_enable(clk); - rate = clk_get_rate(clk) / (PRESCALE + 1); - - __raw_writel(0xffffffff, REG_TICR1); - - val = __raw_readl(REG_TCSR1); - val |= (COUNTEN | PERIOD | PRESCALE); - __raw_writel(val, REG_TCSR1); - - clocksource_mmio_init(REG_TDR1, "nuc900-timer1", rate, 200, - TDR_SHIFT, clocksource_mmio_readl_down); -} - -static void __init nuc900_timer_init(void) -{ - nuc900_clocksource_init(); - nuc900_clockevents_init(); -} - -struct sys_timer nuc900_timer = { - .init = nuc900_timer_init, -}; |