m68knommu: move ColdFire pit.c to its own coldfire directory

[mirror_ubuntu-artful-kernel.git] / arch / m68knommu / platform / 5307 / pit.c

diff --git a/arch/m68knommu/platform/5307/pit.c b/arch/m68knommu/platform/5307/pit.c
deleted file mode 100644 (file)
index 173b754..0000000
--- a/arch/m68knommu/platform/5307/pit.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/***************************************************************************/
-
-/*
- *     pit.c -- Freescale ColdFire PIT timer. Currently this type of
- *              hardware timer only exists in the Freescale ColdFire
- *              5270/5271, 5282 and other CPUs.
- *
- *     Copyright (C) 1999-2007, Greg Ungerer (gerg@snapgear.com)
- *     Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com)
- */
-
-/***************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/param.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <asm/machdep.h>
-#include <asm/io.h>
-#include <asm/coldfire.h>
-#include <asm/mcfpit.h>
-#include <asm/mcfsim.h>
-
-/***************************************************************************/
-
-/*
- *     By default use timer1 as the system clock timer.
- */
-#define        TA(a)   (MCF_IPSBAR + MCFPIT_BASE1 + (a))
-
-/***************************************************************************/
-
-static irqreturn_t hw_tick(int irq, void *dummy)
-{
-       unsigned short pcsr;
-
-       /* Reset the ColdFire timer */
-       pcsr = __raw_readw(TA(MCFPIT_PCSR));
-       __raw_writew(pcsr | MCFPIT_PCSR_PIF, TA(MCFPIT_PCSR));
-
-       return arch_timer_interrupt(irq, dummy);
-}
-
-/***************************************************************************/
-
-static struct irqaction coldfire_pit_irq = {
-       .name    = "timer",
-       .flags   = IRQF_DISABLED | IRQF_TIMER,
-       .handler = hw_tick,
-};
-
-void hw_timer_init(void)
-{
-       volatile unsigned char *icrp;
-       volatile unsigned long *imrp;
-
-       setup_irq(MCFINT_VECBASE + MCFINT_PIT1, &coldfire_pit_irq);
-
-       icrp = (volatile unsigned char *) (MCF_IPSBAR + MCFICM_INTC0 +
-               MCFINTC_ICR0 + MCFINT_PIT1);
-       *icrp = ICR_INTRCONF;
-
-       imrp = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFPIT_IMR);
-       *imrp &= ~MCFPIT_IMR_IBIT;
-
-       /* Set up PIT timer 1 as poll clock */
-       __raw_writew(MCFPIT_PCSR_DISABLE, TA(MCFPIT_PCSR));
-       __raw_writew(((MCF_CLK / 2) / 64) / HZ, TA(MCFPIT_PMR));
-       __raw_writew(MCFPIT_PCSR_EN | MCFPIT_PCSR_PIE | MCFPIT_PCSR_OVW |
-               MCFPIT_PCSR_RLD | MCFPIT_PCSR_CLK64, TA(MCFPIT_PCSR));
-}
-
-/***************************************************************************/
-
-unsigned long hw_timer_offset(void)
-{
-       volatile unsigned long *ipr;
-       unsigned long pmr, pcntr, offset;
-
-       ipr = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFPIT_IMR);
-
-       pmr = __raw_readw(TA(MCFPIT_PMR));
-       pcntr = __raw_readw(TA(MCFPIT_PCNTR));
-
-       /*
-        * If we are still in the first half of the upcount and a
-        * timer interrupt is pending, then add on a ticks worth of time.
-        */
-       offset = ((pmr - pcntr) * (1000000 / HZ)) / pmr;
-       if ((offset < (1000000 / HZ / 2)) && (*ipr & MCFPIT_IMR_IBIT))
-               offset += 1000000 / HZ;
-       return offset;  
-}
-
-/***************************************************************************/