summaryrefslogtreecommitdiffstats
path: root/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c
diff options
context:
space:
mode:
Diffstat (limited to 'c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c')
-rw-r--r--c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c b/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c
deleted file mode 100644
index 80962a1d58..0000000000
--- a/c/src/lib/libcpu/m68k/mcf5206/clock/ckinit.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Clock Driver for MCF5206eLITE board
- *
- * This driver initailizes timer1 on the MCF5206E as the
- * main system clock
- */
-
-/*
- * Author: Victor V. Vengerov <vvv@oktet.ru>
- *
- * Based on work:
- * David Fiddes, D.J@fiddes.surfaid.org
- * http://www.calm.hw.ac.uk/davidf/coldfire/
- *
- * COPYRIGHT (c) 1989-1998.
- * On-Line Applications Research Corporation (OAR).
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <stdlib.h>
-#include <bsp.h>
-#include <rtems/libio.h>
-#include <rtems/clockdrv.h>
-#include "mcf5206/mcf5206e.h"
-
-/*
- * Clock_driver_ticks is a monotonically increasing counter of the
- * number of clock ticks since the driver was initialized.
- */
-volatile uint32_t Clock_driver_ticks;
-
-rtems_isr (*rtems_clock_hook)(rtems_vector_number) = NULL;
-
-static rtems_isr
-Clock_isr (rtems_vector_number vector)
-{
- /* Clear pending interrupt... */
- *MCF5206E_TER(MBAR,1) = MCF5206E_TER_REF | MCF5206E_TER_CAP;
-
- /* Announce the clock tick */
- Clock_driver_ticks++;
- rtems_clock_tick();
- if (rtems_clock_hook != NULL)
- rtems_clock_hook(vector);
-}
-
-void
-Clock_exit(void)
-{
- /* disable all timer1 interrupts */
- *MCF5206E_IMR(MBAR) |= MCF5206E_INTR_BIT(MCF5206E_INTR_TIMER_1);
-
- /* reset timer1 */
- *MCF5206E_TMR(MBAR,1) = MCF5206E_TMR_ICLK_STOP;
-
- /* clear pending */
- *MCF5206E_TER(MBAR,1) = MCF5206E_TER_REF | MCF5206E_TER_CAP;
-}
-
-
-static void
-Install_clock(rtems_isr_entry clock_isr)
-{
- Clock_driver_ticks = 0;
-
- /* Configure timer1 interrupts */
- *MCF5206E_ICR(MBAR,MCF5206E_INTR_TIMER_1) =
- MCF5206E_ICR_AVEC |
- ((BSP_INTLVL_TIMER1 << MCF5206E_ICR_IL_S) & MCF5206E_ICR_IL) |
- ((BSP_INTPRIO_TIMER1 << MCF5206E_ICR_IP_S) & MCF5206E_ICR_IP);
-
- /* Register the interrupt handler */
- set_vector(clock_isr, BSP_INTVEC_TIMER1, 1);
-
- /* Reset timer 1 */
- *MCF5206E_TMR(MBAR, 1) = MCF5206E_TMR_RST;
- *MCF5206E_TMR(MBAR, 1) = MCF5206E_TMR_ICLK_STOP;
- *MCF5206E_TMR(MBAR, 1) = MCF5206E_TMR_RST;
- *MCF5206E_TCN(MBAR, 1) = 0; /* Reset counter */
- *MCF5206E_TER(MBAR, 1) = MCF5206E_TER_REF | MCF5206E_TER_CAP;
-
- /* Set Timer 1 prescaler so that it counts in microseconds */
- *MCF5206E_TMR(MBAR, 1) =
- (((BSP_SYSTEM_FREQUENCY/1000000 - 1) << MCF5206E_TMR_PS_S) &
- MCF5206E_TMR_PS) |
- MCF5206E_TMR_CE_NONE | MCF5206E_TMR_ORI | MCF5206E_TMR_FRR |
- MCF5206E_TMR_RST;
-
- /* Set the timer timeout value from the BSP config */
- *MCF5206E_TRR(MBAR, 1) = rtems_configuration_get_microseconds_per_tick() - 1;
-
- /* Feed system frequency to the timer */
- *MCF5206E_TMR(MBAR, 1) |= MCF5206E_TMR_ICLK_MSCLK;
-
- /* Enable timer 1 interrupts */
- *MCF5206E_IMR(MBAR) &= ~MCF5206E_INTR_BIT(MCF5206E_INTR_TIMER_1);
-
- /* Register the driver exit procedure so we can shutdown */
- atexit(Clock_exit);
-}
-
-rtems_device_driver
-Clock_initialize(rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *pargp)
-{
- Install_clock (Clock_isr);
-
- return RTEMS_SUCCESSFUL;
-}