1 files changed, 0 insertions, 247 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/clock/clock.c b/c/src/lib/libbsp/powerpc/shared/clock/clock.c
deleted file mode 100644
index 431488a901..0000000000
--- a/c/src/lib/libbsp/powerpc/shared/clock/clock.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/**
- * @file
- *
- * @ingroup powerpc_shared
- *
- * @brief Source file for a clock driver.
- */
-
-/*
- * Copyright (c) 2008-2015 embedded brains GmbH.  All rights reserved.
- *
- *  embedded brains GmbH
- *  Obere Lagerstr. 30
- *  82178 Puchheim
- *  Germany
- *  <rtems@embedded-brains.de>
- *
- * 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/timecounter.h>
-
-#include <libcpu/powerpc-utility.h>
-#include <bsp/vectors.h>
-
-#define RTEMS_STATUS_CHECKS_USE_PRINTK
-
-#include <rtems/status-checks.h>
-
-/*
- * This variable must be defined in the BSP and valid before clock driver
- * initialization.
- */
-extern uint32_t bsp_time_base_frequency;
-
-#define PPC405_PIT 0x3db
-
-#define PPC_CLOCK_DECREMENTER_MAX UINT32_MAX
-
-volatile uint32_t Clock_driver_ticks = 0;
-
-static uint32_t ppc_clock_decrementer_value = PPC_CLOCK_DECREMENTER_MAX;
-
-static uint32_t ppc_clock_next_time_base;
-
-static struct timecounter ppc_tc;
-
-static uint32_t ppc_get_timecount(struct timecounter *tc)
-{
-  return ppc_time_base();
-}
-
-static void ppc_clock_no_tick(void)
-{
-  /* Do nothing */
-}
-
-static void (*ppc_clock_tick)(void) = ppc_clock_no_tick;
-
-static int ppc_clock_exception_handler(
-  BSP_Exception_frame *frame,
-  unsigned number
-)
-{
-  uint32_t delta = ppc_clock_decrementer_value;
-  uint32_t next = ppc_clock_next_time_base;
-  uint32_t dec = 0;
-  uint32_t now = 0;
-  uint32_t msr = 0;
-
-  do {
-    /* Increment clock ticks */
-    Clock_driver_ticks += 1;
-
-    /* Enable external exceptions */
-    msr = ppc_external_exceptions_enable();
-
-    /* Call clock ticker  */
-    ppc_clock_tick();
-
-    /* Restore machine state */
-    ppc_external_exceptions_disable( msr);
-
-    /* Next time base */
-    next += delta;
-
-    /* Current time */
-    now = ppc_time_base();
-
-    /* New decrementer value */
-    dec = next - now;
-  } while (dec > delta);
-
-  /* Set decrementer */
-  ppc_set_decrementer_register( dec);
-
-  /* Expected next time base */
-  ppc_clock_next_time_base = next;
-
-  return 0;
-}
-
-static int ppc_clock_exception_handler_first(
-  BSP_Exception_frame *frame,
-  unsigned number
-)
-{
-  /* We have to clear the first pending decrementer exception this way */
-
-  if (ppc_decrementer_register() >= 0x80000000) {
-    ppc_clock_exception_handler( frame, number);
-  }
-
-  ppc_exc_set_handler( ASM_DEC_VECTOR, ppc_clock_exception_handler);
-
-  return 0;
-}
-
-static int ppc_clock_exception_handler_booke(
-  BSP_Exception_frame *frame,
-  unsigned number
-)
-{
-  uint32_t msr;
-
-  /* Acknowledge decrementer request */
-  PPC_SET_SPECIAL_PURPOSE_REGISTER( BOOKE_TSR, BOOKE_TSR_DIS);
-
-  /* Increment clock ticks */
-  Clock_driver_ticks += 1;
-
-  /* Enable external exceptions */
-  msr = ppc_external_exceptions_enable();
-
-  /* Call clock ticker  */
-  ppc_clock_tick();
-
-  /* Restore machine state */
-  ppc_external_exceptions_disable( msr);
-
-  return 0;
-}
-
-static int ppc_clock_exception_handler_ppc405(BSP_Exception_frame *frame, unsigned number)
-{
-  uint32_t msr;
-
-  /* Acknowledge PIT request */
-  PPC_SET_SPECIAL_PURPOSE_REGISTER(PPC405_TSR, BOOKE_TSR_DIS);
-
-  /* Increment clock ticks */
-  Clock_driver_ticks += 1;
-
-  /* Enable external exceptions */
-  msr = ppc_external_exceptions_enable();
-
-  /* Call clock ticker  */
-  ppc_clock_tick();
-
-  /* Restore machine state */
-  ppc_external_exceptions_disable(msr);
-
-  return 0;
-}
-
-void Clock_exit(void)
-{
-  /* Set the decrementer to the maximum value */
-  ppc_set_decrementer_register( PPC_CLOCK_DECREMENTER_MAX);
-
-  /* Use default clock handler */
-  ppc_clock_tick = ppc_clock_no_tick;
-}
-
-rtems_device_driver Clock_initialize(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void *arg
-)
-{
-  uint64_t frequency = bsp_time_base_frequency;
-  uint64_t us_per_tick = rtems_configuration_get_microseconds_per_tick();
-  uint32_t interval = (uint32_t) ((frequency * us_per_tick) / 1000000);
-
-  /*
-   * Set default ticker.
-   */
-  ppc_clock_tick = rtems_timecounter_tick;
-
-  if (ppc_cpu_is_bookE() != PPC_BOOKE_405) {
-    /* Decrementer value */
-    ppc_clock_decrementer_value = interval - 1;
-
-    /* Check decrementer value */
-    if (ppc_clock_decrementer_value == 0) {
-      ppc_clock_decrementer_value = PPC_CLOCK_DECREMENTER_MAX;
-      RTEMS_SYSLOG_ERROR( "decrementer value would be zero, will be set to maximum value instead\n");
-    }
-    if (ppc_cpu_is_bookE()) {
-      /* Set decrementer auto-reload value */
-      PPC_SET_SPECIAL_PURPOSE_REGISTER( BOOKE_DECAR, ppc_clock_decrementer_value);
-
-      /* Install exception handler */
-      ppc_exc_set_handler( ASM_BOOKE_DEC_VECTOR, ppc_clock_exception_handler_booke);
-
-      /* Enable decrementer and auto-reload */
-      PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS( BOOKE_TCR, BOOKE_TCR_DIE | BOOKE_TCR_ARE);
-    } else {
-      /* Here the decrementer value is actually the interval */
-      ++ppc_clock_decrementer_value;
-
-      /* Initialize next time base */
-      ppc_clock_next_time_base = ppc_time_base() + ppc_clock_decrementer_value;
-
-      /* Install exception handler */
-      ppc_exc_set_handler( ASM_DEC_VECTOR, ppc_clock_exception_handler_first);
-    }
-
-    /* Set the decrementer value */
-    ppc_set_decrementer_register( ppc_clock_decrementer_value);
-  } else {
-    /* PIT interval value */
-    ppc_clock_decrementer_value = interval;
-
-    /* Install exception handler */
-    ppc_exc_set_handler(ASM_BOOKE_DEC_VECTOR, ppc_clock_exception_handler_ppc405);
-
-    /* Enable PIT and auto-reload */
-    PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS(PPC405_TCR, BOOKE_TCR_DIE | BOOKE_TCR_ARE);
-
-    /* Set PIT auto-reload and initial value */
-    PPC_SET_SPECIAL_PURPOSE_REGISTER(PPC405_PIT, interval);
-  }
-
-  /* Install timecounter */
-  ppc_tc.tc_get_timecount = ppc_get_timecount;
-  ppc_tc.tc_counter_mask = 0xffffffff;
-  ppc_tc.tc_frequency = frequency;
-  ppc_tc.tc_quality = RTEMS_TIMECOUNTER_QUALITY_CLOCK_DRIVER;
-  rtems_timecounter_install(&ppc_tc);
-
-  return RTEMS_SUCCESSFUL;
-}