[rtems commit] bsps/powerpc: Delete clock_4xx.c
Sebastian Huber
sebh at rtems.org
Mon Jun 24 08:48:40 UTC 2013
Module: rtems
Branch: master
Commit: 7d0e88f240f64c581a2b414a45f4ab9a8df76b45
Changeset: http://git.rtems.org/rtems/commit/?id=7d0e88f240f64c581a2b414a45f4ab9a8df76b45
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Fri Jun 21 16:19:46 2013 +0200
bsps/powerpc: Delete clock_4xx.c
---
c/src/lib/libcpu/powerpc/ppc403/clock/clock_4xx.c | 225 ---------------------
1 files changed, 0 insertions(+), 225 deletions(-)
diff --git a/c/src/lib/libcpu/powerpc/ppc403/clock/clock_4xx.c b/c/src/lib/libcpu/powerpc/ppc403/clock/clock_4xx.c
deleted file mode 100644
index 5ec6a5f..0000000
--- a/c/src/lib/libcpu/powerpc/ppc403/clock/clock_4xx.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/* clock.c
- *
- * This routine initializes the interval timer on the
- * PowerPC 405 CPU. The tick frequency is specified by the bsp.
- *
- * Author: Andrew Bray <andy at i-cubed.co.uk>
- *
- * COPYRIGHT (c) 1995 by i-cubed ltd.
- *
- * To anyone who acknowledges that this file is provided "AS IS"
- * without any express or implied warranty:
- * permission to use, copy, modify, and distribute this file
- * for any purpose is hereby granted without fee, provided that
- * the above copyright notice and this notice appears in all
- * copies, and that the name of i-cubed limited not be used in
- * advertising or publicity pertaining to distribution of the
- * software without specific, written prior permission.
- * i-cubed limited makes no representations about the suitability
- * of this software for any purpose.
- *
- * Derived from c/src/lib/libcpu/hppa1.1/clock/clock.c:
- *
- * Modifications for deriving timer clock from cpu system clock by
- * Thomas Doerfler <td at imd.m.isar.de>
- * for these modifications:
- * COPYRIGHT (c) 1997 by IMD, Puchheim, Germany.
- *
- * COPYRIGHT (c) 1989-2007.
- * 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.com/license/LICENSE.
- *
- * Modifications for PPC405GP by Dennis Ehlin
- *
- * Further modifications for PPC405GP/EX by Michael Hamel
- */
-
-#include <rtems.h>
-#include <rtems/clockdrv.h>
-#include <rtems/libio.h>
-#include <stdlib.h> /* for atexit() */
-#include <rtems/bspIo.h>
-#include <ppc405common.h>
-#include <libcpu/cpuIdent.h>
-#include <bsp/irq.h>
-
-
-
-/* PPC405GP */
-#define CPC0_CR1 0xB2
- #define CR1_CETE 0x00800000
-
-/* PPC405EX */
-#define SDR0_C405 0x180
- #define SDR_CETE 0x02000000
-
-volatile uint32_t Clock_driver_ticks;
-static uint32_t pit_value, tick_time;
-
-void Clock_exit( void );
-
-rtems_isr_entry set_vector( /* returns old vector */
- rtems_isr_entry handler, /* isr routine */
- rtems_vector_number vector, /* vector number */
- int type /* RTEMS or RAW intr */
-);
-
-/* Defined in bspstart.c */
-extern uint32_t bsp_clicks_per_usec;
-
-/*
- * These are set by clock driver during its init
- */
-
-rtems_device_major_number rtems_clock_major = ~0;
-rtems_device_minor_number rtems_clock_minor;
-
-/*
- * ISR Handler
- */
-
-void Clock_isr(void* handle)
-{
- Clock_driver_ticks++;
- rtems_clock_tick();
-}
-
-int ClockIsOn(const rtems_irq_connect_data* unused)
-{
- return ((mfspr(TCR) & PIE) != 0);
-}
-
-
-void ClockOff(const rtems_irq_connect_data* unused)
-{
- register uint32_t r;
-
- r = mfspr(TCR);
- mtspr(TCR, r & ~(PIE | ARE) );
-}
-
-void ClockOn(const rtems_irq_connect_data* unused)
-{
- uint32_t iocr, r;
- ppc_cpu_id_t cpu;
- Clock_driver_ticks = 0;
-
- cpu = get_ppc_cpu_type();
- if (cpu==PPC_405GP) {
- iocr = mfdcr(CPC0_CR1);
- if (bsp_timer_internal_clock) iocr &= ~CR1_CETE ;/* timer clocked from system clock */
- else iocr |= CR1_CETE; /* select external timer clock */
- mtdcr(CPC0_CR1,iocr);
- } else if (cpu==PPC_405EX) {
- mfsdr(SDR0_C405,iocr);
- if (bsp_timer_internal_clock) iocr &= ~SDR_CETE ;/* timer clocked from system clock */
- else iocr |= SDR_CETE; /* select external timer clock */
- mtsdr(SDR0_C405,iocr);
- } else {
- printk("clock.c:unrecognised CPU");
- rtems_fatal_error_occurred(1);
- }
-
- pit_value = rtems_configuration_get_microseconds_per_tick() * bsp_clicks_per_usec;
- mtspr(PIT,pit_value);
-
- tick_time = mfspr(TBL) + pit_value;
- r = mfspr(TCR);
- mtspr(TCR, r | PIE | ARE);
-}
-
-
-
-void Install_clock(void (*clock_isr)(void *))
-{
-
- /*
- * initialize the interval here
- * First tick is set to right amount of time in the future
- * Future ticks will be incremented over last value set
- * in order to provide consistent clicks in the face of
- * interrupt overhead
- */
-
- rtems_irq_connect_data clockIrqConnData;
-
- Clock_driver_ticks = 0;
- clockIrqConnData.on = ClockOn;
- clockIrqConnData.off = ClockOff;
- clockIrqConnData.isOn = ClockIsOn;
- clockIrqConnData.name = BSP_PIT;
- clockIrqConnData.hdl = clock_isr;
- if ( ! BSP_install_rtems_irq_handler (&clockIrqConnData)) {
- printk("Unable to connect Clock Irq handler\n");
- rtems_fatal_error_occurred(1);
- }
- atexit(Clock_exit);
-}
-
-void
-ReInstall_clock(void (*new_clock_isr)(void *))
-{
- uint32_t isrlevel = 0;
- rtems_irq_connect_data clockIrqConnData;
-
- rtems_interrupt_disable(isrlevel);
- clockIrqConnData.name = BSP_PIT;
- if ( ! BSP_get_current_rtems_irq_handler(&clockIrqConnData)) {
- printk("Unable to stop system clock\n");
- rtems_fatal_error_occurred(1);
- }
-
- BSP_remove_rtems_irq_handler (&clockIrqConnData);
- clockIrqConnData.on = ClockOn;
- clockIrqConnData.off = ClockOff;
- clockIrqConnData.isOn = ClockIsOn;
- clockIrqConnData.name = BSP_PIT;
- clockIrqConnData.hdl = new_clock_isr;
- if (!BSP_install_rtems_irq_handler (&clockIrqConnData)) {
- printk("Unable to connect Clock Irq handler\n");
- rtems_fatal_error_occurred(1);
- }
- rtems_interrupt_enable(isrlevel);
-}
-
-
-/*
- * Called via atexit()
- * Remove the clock interrupt handler by setting handler to NULL
- *
- * This will not work on the 405GP because
- * when bit's are set in TCR they can only be unset by a reset
- */
-
-void Clock_exit(void)
-{
- rtems_irq_connect_data clockIrqConnData;
-
- clockIrqConnData.name = BSP_PIT;
- if (!BSP_get_current_rtems_irq_handler(&clockIrqConnData)) {
- printk("Unable to stop system clock\n");
- rtems_fatal_error_occurred(1);
- }
- BSP_remove_rtems_irq_handler (&clockIrqConnData);
-}
-
-
-rtems_device_driver Clock_initialize(
- rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *pargp
-)
-{
- Install_clock( Clock_isr );
-
- /*
- * make major/minor avail to others such as shared memory driver
- */
- rtems_clock_major = major;
- rtems_clock_minor = minor;
-
- return RTEMS_SUCCESSFUL;
-}
More information about the vc
mailing list