bsps/powerpc: Move ppc403 clock driver to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

2 files changed, 0 insertions, 308 deletions

diff --git a/c/src/lib/libcpu/powerpc/Makefile.am b/c/src/lib/libcpu/powerpc/Makefile.am
index 9d19f0e13d..469a518de5 100644
--- a/c/src/lib/libcpu/powerpc/Makefile.am
+++ b/c/src/lib/libcpu/powerpc/Makefile.am
@@ -6,37 +6,4 @@ EXTRA_DIST =
 
 noinst_PROGRAMS =
 
-EXTRA_DIST += ppc403/README ppc403/vectors/README
-if ppc4xx
-# ppc403/clock
-noinst_PROGRAMS += ppc403/clock.rel
-ppc403_clock_rel_SOURCES = ppc403/clock/clock.c
-ppc403_clock_rel_CPPFLAGS = $(AM_CPPFLAGS)
-ppc403_clock_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
-
-# ppc403/console
-noinst_PROGRAMS += ppc403/console.rel
-if ppc405
-ppc403_console_rel_SOURCES = ppc403/console/console405.c
-else
-ppc403_console_rel_SOURCES = ppc403/console/console.c
-endif
-ppc403_console_rel_CPPFLAGS = $(AM_CPPFLAGS)
-ppc403_console_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
-
-# ppc403/tty_drv
-if ppc405
-noinst_PROGRAMS += ppc403/tty_drv.rel
-ppc403_tty_drv_rel_SOURCES = ppc403/tty_drv/tty_drv.c ppc403/tty_drv/tty_drv.h
-ppc403_tty_drv_rel_CPPFLAGS = $(AM_CPPFLAGS)
-ppc403_tty_drv_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
-endif
-
-endif # ppc4xx
-
-if ppc405
-
-## ppc4xx/include
-endif # ppc405
-
 include $(top_srcdir)/../../../automake/local.am
diff --git a/c/src/lib/libcpu/powerpc/ppc403/clock/clock.c b/c/src/lib/libcpu/powerpc/ppc403/clock/clock.c
deleted file mode 100644
index 64e6f29d39..0000000000
--- a/c/src/lib/libcpu/powerpc/ppc403/clock/clock.c
+++ /dev/null
@@ -1,275 +0,0 @@
-/**
- *  @file
- *
- *  This routine initializes the interval timer on the
- *  PowerPC 403 CPU.  The tick frequency is specified by the BSP.
- */
-
-/*
- *  Original PPC403 Code from:
- *  Author: Andrew Bray <andy@i-cubed.co.uk>
- *  COPYRIGHT (c) 1995 by i-cubed ltd.
- *
- *  Modifications for PPC405GP by Dennis Ehlin
- *
- *  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.
- *
- *  Modifications for deriving timer clock from cpu system clock by
- *              Thomas Doerfler <td@imd.m.isar.de>
- *  for these modifications:
- *  COPYRIGHT (c) 1997 by IMD, Puchheim, Germany.
- *
- *  COPYRIGHT (c) 1989-2012.
- *  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 <rtems.h>
-#include <rtems/clockdrv.h>
-#include <rtems/libio.h>
-#include <stdlib.h>                     /* for atexit() */
-#include <rtems/bspIo.h>
-#include <rtems/powerpc/powerpc.h>
-
-/*
- * check, which exception handling code is present
- */
-
-#include <bsp.h>
-
-#include <bsp/vectors.h>
-#include <bsp/irq.h>
-
-extern uint32_t   bsp_clicks_per_usec;
-
-volatile uint32_t Clock_driver_ticks;
-static uint32_t   pit_value, tick_time;
-static bool       auto_restart;
-
-void Clock_exit( void );
-
-static inline uint32_t get_itimer(void)
-{
-  register uint32_t rc;
-
-#ifndef ppc405 /* this is a ppc403 */
-  __asm__ volatile ("mfspr %0, 0x3dd" : "=r" ((rc))); /* TBLO */
-#else /* ppc405 */
-  __asm__ volatile ("mfspr %0, 0x10c" : "=r" ((rc))); /* 405GP TBL */
-#endif /* ppc405 */
-
-  return rc;
-}
-
-/*
- *  ISR Handler
- */
-static void Clock_isr(void* handle)
-{
-  uint32_t clicks_til_next_interrupt;
-#if defined(BSP_PPC403_CLOCK_ISR_IRQ_LEVEL)
-  uint32_t l_orig = _ISR_Get_level();
-#endif
-
-  if (!auto_restart) {
-    uint32_t itimer_value;
-    /*
-     * setup for next interrupt; making sure the new value is reasonably
-     * in the future.... in case we lost out on an interrupt somehow
-     */
-    itimer_value = get_itimer();
-    tick_time += pit_value;
-
-    /*
-     * how far away is next interrupt *really*
-     * It may be a long time; this subtraction works even if
-     * Clock_clicks_interrupt < Clock_clicks_low_order via
-     * the miracle of unsigned math.
-     */
-    clicks_til_next_interrupt = tick_time - itimer_value;
-
-    /*
-     * If it is too soon then bump it up.
-     * This should only happen if CPU_HPPA_CLICKS_PER_TICK is too small.
-     * But setting it low is useful for debug, so...
-     */
-    if (clicks_til_next_interrupt < 400) {
-      tick_time = itimer_value + 1000;
-      clicks_til_next_interrupt = 1000;
-      /* XXX: count these! this should be rare */
-    }
-
-    /*
-     * If it is too late, that means we missed the interrupt somehow.
-     * Rather than wait 35-50s for a wrap, we just fudge it here.
-     */
-    if (clicks_til_next_interrupt > pit_value) {
-      tick_time = itimer_value + 1000;
-      clicks_til_next_interrupt = 1000;
-      /* XXX: count these! this should never happen :-) */
-    }
-
-    __asm__ volatile ("mtspr 0x3db, %0" :: "r"
-                      (clicks_til_next_interrupt));                  /* PIT */
-  }
-
-  __asm__ volatile ("mtspr 0x3d8, %0" :: "r" (0x08000000));          /* TSR */
-
-  Clock_driver_ticks++;
-
-  /* Give BSP a chance to say if they want to re-enable interrupts */
-#if defined(BSP_PPC403_CLOCK_ISR_IRQ_LEVEL)
-  _ISR_Set_level(BSP_PPC403_CLOCK_ISR_IRQ_LEVEL);
-#endif
-  rtems_clock_tick();
-
-#if defined(BSP_PPC403_CLOCK_ISR_IRQ_LEVEL)
-  _ISR_Set_level(l_orig)
-#endif
-}
-
-static int ClockIsOn(const rtems_irq_connect_data* unused)
-{
-  register uint32_t tcr;
-
-  __asm__ volatile ("mfspr %0, 0x3da" : "=r" ((tcr)));               /* TCR */
-
-  return (tcr & 0x04000000) != 0;
-}
-
-static void ClockOff(const rtems_irq_connect_data* unused)
-{
-  register uint32_t tcr;
-
-  __asm__ volatile ("mfspr %0, 0x3da" : "=r" ((tcr)));               /* TCR */
-  tcr &= ~ 0x04400000;
-  __asm__ volatile ("mtspr 0x3da, %0" : "=r" ((tcr)) : "0" ((tcr))); /* TCR */
-}
-
-static void ClockOn(const rtems_irq_connect_data* unused)
-{
-  uint32_t          iocr;
-  register uint32_t tcr;
-#ifndef ppc405
-  uint32_t          pvr;
-#endif /* ppc403 */
-
-  Clock_driver_ticks = 0;
-
-#ifndef ppc405 /* this is a ppc403 */
-  __asm__ volatile ("mfdcr %0, 0xa0" : "=r" (iocr));              /* IOCR */
-  iocr &= ~4;                         /* timer clocked from system clock */
-  __asm__ volatile ("mtdcr 0xa0, %0" : "=r" (iocr) : "0" (iocr)); /* IOCR */
-
-  __asm__ volatile ("mfspr %0, 0x11f" : "=r" ((pvr))); /* PVR */
-  if (((pvr & 0xffff0000) >> 16) != 0x0020)
-    return;                             /* Not a ppc403 */
-
-  if ((pvr & 0xff00) == 0x0000)         /* 403GA */
-#if 0 /* FIXME: in which processor versions will "autoload" work properly? */
-    auto_restart = (pvr & 0x00f0) > 0x0000 ? true : false;
-#else
-    /* no known chip version supports auto restart of timer... */
-    auto_restart = false;
-#endif
-  else if ((pvr & 0xff00) == 0x0100)    /* 403GB */
-    auto_restart = true;
-
-#else /* ppc405 */
-  __asm__ volatile ("mfdcr %0, 0x0b2" : "=r" (iocr));              /*405GP CPC0_CR1 */
-  iocr &=~0x800000;               /* timer clocked from system clock CETE*/
-  __asm__ volatile ("mtdcr 0x0b2, %0" : "=r" (iocr) : "0" (iocr)); /* 405GP CPC0_CR1 */
-
-  /*
-   * Enable auto restart
-   */
-  auto_restart = true;
-#endif /* ppc405 */
-
-  pit_value = rtems_configuration_get_microseconds_per_tick() *
-                bsp_clicks_per_usec;
-
-  /*
-   * Set PIT value
-   */
-  __asm__ volatile ("mtspr 0x3db, %0" : : "r" (pit_value)); /* PIT */
-
-  /*
-   * Set timer to autoreload, bit TCR->ARE = 1  0x0400000
-   * Enable PIT interrupt,    bit TCR->PIE = 1  0x4000000
-   */
-  tick_time = get_itimer() + pit_value;
-
-  __asm__ volatile ("mfspr %0, 0x3da" : "=r" ((tcr)));               /* TCR */
-  tcr = (tcr & ~0x04400000) | (auto_restart ? 0x04400000 : 0x04000000);
-#if 1
-  __asm__ volatile ("mtspr 0x3da, %0" : "=r" ((tcr)) : "0" ((tcr))); /* TCR */
-#endif
-}
-
-static void Install_clock(void (*clock_isr)(void *))
-{
-  rtems_irq_connect_data clockIrqConnData;
-
-  Clock_driver_ticks = 0;
-
-  /*
-   * 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
-   */
-  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);
-}
-
-/*
- * 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 );
-
-  return RTEMS_SUCCESSFUL;
-}