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Diffstat (limited to 'arch/arm/mach-pnx4008/time.c')
-rw-r--r--arch/arm/mach-pnx4008/time.c134
1 files changed, 0 insertions, 134 deletions
diff --git a/arch/arm/mach-pnx4008/time.c b/arch/arm/mach-pnx4008/time.c
deleted file mode 100644
index 0cfe8af3d3be..000000000000
--- a/arch/arm/mach-pnx4008/time.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * arch/arm/mach-pnx4008/time.c
- *
- * PNX4008 Timers
- *
- * Authors: Vitaly Wool, Dmitry Chigirev, Grigory Tolstolytkin <source@mvista.com>
- *
- * 2005 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/kallsyms.h>
-#include <linux/time.h>
-#include <linux/timex.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <asm/leds.h>
-#include <asm/mach/time.h>
-#include <asm/errno.h>
-
-#include "time.h"
-
-/*! Note: all timers are UPCOUNTING */
-
-/*!
- * Returns number of us since last clock interrupt. Note that interrupts
- * will have been disabled by do_gettimeoffset()
- */
-static unsigned long pnx4008_gettimeoffset(void)
-{
- u32 ticks_to_match =
- __raw_readl(HSTIM_MATCH0) - __raw_readl(HSTIM_COUNTER);
- u32 elapsed = LATCH - ticks_to_match;
- return (elapsed * (tick_nsec / 1000)) / LATCH;
-}
-
-/*!
- * IRQ handler for the timer
- */
-static irqreturn_t pnx4008_timer_interrupt(int irq, void *dev_id)
-{
- if (__raw_readl(HSTIM_INT) & MATCH0_INT) {
-
- do {
- timer_tick();
-
- /*
- * this algorithm takes care of possible delay
- * for this interrupt handling longer than a normal
- * timer period
- */
- __raw_writel(__raw_readl(HSTIM_MATCH0) + LATCH,
- HSTIM_MATCH0);
- __raw_writel(MATCH0_INT, HSTIM_INT); /* clear interrupt */
-
- /*
- * The goal is to keep incrementing HSTIM_MATCH0
- * register until HSTIM_MATCH0 indicates time after
- * what HSTIM_COUNTER indicates.
- */
- } while ((signed)
- (__raw_readl(HSTIM_MATCH0) -
- __raw_readl(HSTIM_COUNTER)) < 0);
- }
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction pnx4008_timer_irq = {
- .name = "PNX4008 Tick Timer",
- .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
- .handler = pnx4008_timer_interrupt
-};
-
-/*!
- * Set up timer and timer interrupt.
- */
-static __init void pnx4008_setup_timer(void)
-{
- __raw_writel(RESET_COUNT, MSTIM_CTRL);
- while (__raw_readl(MSTIM_COUNTER)) ; /* wait for reset to complete. 100% guarantee event */
- __raw_writel(0, MSTIM_CTRL); /* stop the timer */
- __raw_writel(0, MSTIM_MCTRL);
-
- __raw_writel(RESET_COUNT, HSTIM_CTRL);
- while (__raw_readl(HSTIM_COUNTER)) ; /* wait for reset to complete. 100% guarantee event */
- __raw_writel(0, HSTIM_CTRL);
- __raw_writel(0, HSTIM_MCTRL);
- __raw_writel(0, HSTIM_CCR);
- __raw_writel(12, HSTIM_PMATCH); /* scale down to 1 MHZ */
- __raw_writel(LATCH, HSTIM_MATCH0);
- __raw_writel(MR0_INT, HSTIM_MCTRL);
-
- setup_irq(HSTIMER_INT, &pnx4008_timer_irq);
-
- __raw_writel(COUNT_ENAB | DEBUG_EN, HSTIM_CTRL); /*start timer, stop when JTAG active */
-}
-
-/* Timer Clock Control in PM register */
-#define TIMCLK_CTRL_REG IO_ADDRESS((PNX4008_PWRMAN_BASE + 0xBC))
-#define WATCHDOG_CLK_EN 1
-#define TIMER_CLK_EN 2 /* HS and MS timers? */
-
-static u32 timclk_ctrl_reg_save;
-
-void pnx4008_timer_suspend(void)
-{
- timclk_ctrl_reg_save = __raw_readl(TIMCLK_CTRL_REG);
- __raw_writel(0, TIMCLK_CTRL_REG); /* disable timers */
-}
-
-void pnx4008_timer_resume(void)
-{
- __raw_writel(timclk_ctrl_reg_save, TIMCLK_CTRL_REG); /* enable timers */
-}
-
-struct sys_timer pnx4008_timer = {
- .init = pnx4008_setup_timer,
- .offset = pnx4008_gettimeoffset,
- .suspend = pnx4008_timer_suspend,
- .resume = pnx4008_timer_resume,
-};
-