bsps: Move clock drivers to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

3 files changed, 2 insertions, 359 deletions

diff --git a/c/src/lib/libbsp/sh/gensh1/Makefile.am b/c/src/lib/libbsp/sh/gensh1/Makefile.am
index dba3efa272..d258a65c6e 100644
--- a/c/src/lib/libbsp/sh/gensh1/Makefile.am
+++ b/c/src/lib/libbsp/sh/gensh1/Makefile.am
@@ -31,8 +31,8 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-defa
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/sbrk.c
 librtemsbsp_a_SOURCES += ../shared/bsphwinit.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/getentropy/getentropy-cpucounter.c
-librtemsbsp_a_SOURCES += clock/ckinit.c
-librtemsbsp_a_SOURCES += clock/delay.c
+librtemsbsp_a_SOURCES +=../../../../../../bsps/sh/gensh1/clock/ckinit.c
+librtemsbsp_a_SOURCES +=../../../../../../bsps/sh/gensh1/clock/delay.c
 librtemsbsp_a_SOURCES += startup/cpu_asm.c
 librtemsbsp_a_SOURCES += startup/ispsh7032.c
 librtemsbsp_a_SOURCES += timer/timer.c
diff --git a/c/src/lib/libbsp/sh/gensh1/clock/ckinit.c b/c/src/lib/libbsp/sh/gensh1/clock/ckinit.c
deleted file mode 100644
index 6faaf27f58..0000000000
--- a/c/src/lib/libbsp/sh/gensh1/clock/ckinit.c
+++ /dev/null
@@ -1,306 +0,0 @@
-/*
- *  This file contains the clock driver the Hitachi SH 703X
- */
-
-/*
- *  Authors: Ralf Corsepius (corsepiu@faw.uni-ulm.de) and
- *           Bernd Becker (becker@faw.uni-ulm.de)
- *
- *  COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- *  COPYRIGHT (c) 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 <rtems.h>
-
-#include <stdlib.h>
-
-#include <rtems/clockdrv.h>
-#include <rtems/score/sh_io.h>
-#include <rtems/score/sh.h>
-#include <rtems/score/ispsh7032.h>
-#include <rtems/score/iosh7032.h>
-
-extern uint32_t bsp_clicks_per_second;
-
-#ifndef CLOCKPRIO
-#define CLOCKPRIO 10
-#endif
-
-#define I_CLK_PHI_1	0
-#define I_CLK_PHI_2	1
-#define I_CLK_PHI_4	2
-#define I_CLK_PHI_8	3
-
-/*
- * Set I_CLK_PHI to one of the I_CLK_PHI_X values from above to choose
- * a PHI/X clock rate.
- */
-
-#define I_CLK_PHI 	I_CLK_PHI_4
-#define CLOCK_SCALE	(1<<I_CLK_PHI)
-
-#define ITU0_STARTMASK 	0xfe
-#define ITU0_SYNCMASK 	0xfe
-#define ITU0_MODEMASK 	0xfe
-#define ITU0_TCRMASK 	(0x20 | I_CLK_PHI)
-#define ITU_STAT_MASK 	0xf8
-#define ITU0_IRQMASK 	0xfe
-#define ITU0_TIERMASK 	0x01
-#define IPRC_ITU0_MASK 	0xff0f
-#define ITU0_TIORVAL 	0x08
-
-/*
- * clicks_per_tick := clicks_per_sec * usec_per_tick
- *
- * This is a very expensive function ;-)
- *
- * Below are two variants:
- * 1. A variant applying integer arithmetics, only.
- * 2. A variant applying floating point arithmetics
- *
- * The floating point variant pulls in the fmath routines when linking,
- * resulting in slightly larger executables for applications that do not
- * apply fmath otherwise. However, the imath variant is significantly slower
- * than the fmath variant and more complex.
- *
- * Assuming that most applications will not use fmath, but are critical
- * in memory size constraints, we apply the integer variant.
- *
- * To the sake of simplicity, we might abandon one of both variants in
- * future.
- */
-static unsigned int sh_clicks_per_tick(
-  unsigned int clicks_per_sec,
-  unsigned int usec_per_tick
-)
-{
-#if 1
-  unsigned int clicks_per_tick = 0 ;
-
-  unsigned int b = clicks_per_sec ;
-  unsigned int c = 1000000 ;
-  unsigned int d = 1 ;
-  unsigned int a = ( ( b / c ) * usec_per_tick ) / d;
-
-  clicks_per_tick += a ;
-
-  while ( ( b %= c ) > 0 )
-  {
-    c /= 10 ;
-    d *= 10 ;
-    a = ( ( b / c ) * usec_per_tick ) / d ;
-    clicks_per_tick += a ;
-  }
-  return clicks_per_tick ;
-#else
-  double fclicks_per_tick =
-    ((double) clicks_per_sec * (double) usec_per_tick) / 1000000.0 ;
-  return (uint32_t) fclicks_per_tick ;
-#endif
-}
-
-/*
- *  The interrupt vector number associated with the clock tick device
- *  driver.
- */
-
-#define CLOCK_VECTOR IMIA0_ISP_V
-
-/*
- *  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;
-
-void Clock_exit( void );
-static rtems_isr Clock_isr( rtems_vector_number vector );
-
-/*
- *  Clock_isrs is the number of clock ISRs until the next invocation of
- *  the RTEMS clock tick routine.  The clock tick device driver
- *  gets an interrupt once a millisecond and counts down until the
- *  length of time between the user configured microseconds per tick
- *  has passed.
- */
-
-uint32_t   Clock_isrs;              /* ISRs until next tick */
-static uint32_t   Clock_isrs_const;        /* only calculated once */
-
-/*
- *  The previous ISR on this clock tick interrupt vector.
- */
-rtems_isr_entry  Old_ticker;
-
-/*
- *  Isr Handler
- */
-static rtems_isr Clock_isr(
-  rtems_vector_number vector
-)
-{
-  /*
-   * bump the number of clock driver ticks since initialization
-   *
-   * determine if it is time to announce the passing of tick as configured
-   * to RTEMS through the rtems_clock_tick directive
-   *
-   * perform any timer dependent tasks
-   */
-  uint8_t   temp;
-
-  /* reset the flags of the status register */
-  temp = read8( ITU_TSR0) & ITU_STAT_MASK;
-  write8( temp, ITU_TSR0);
-
-  Clock_driver_ticks++ ;
-
-  if( Clock_isrs == 1)
-    {
-      rtems_clock_tick();
-      Clock_isrs = Clock_isrs_const;
-    }
-  else
-    {
-      Clock_isrs-- ;
-    }
-}
-
-/*
- *  Install_clock
- *
- *  Install a clock tick handler and reprograms the chip.  This
- *  is used to initially establish the clock tick.
- */
-static void Install_clock(
-  rtems_isr_entry clock_isr
-)
-{
-  uint8_t   temp8 = 0;
-  uint32_t   microseconds_per_tick;
-  uint32_t   cclicks_per_tick;
-  uint16_t   Clock_limit;
-
-  /*
-   *  Initialize the clock tick device driver variables
-   */
-
-  Clock_driver_ticks = 0;
-
-  if ( rtems_configuration_get_microseconds_per_tick() != 0 )
-    microseconds_per_tick = rtems_configuration_get_microseconds_per_tick() ;
-  else
-    microseconds_per_tick = 10000 ; /* 10000 us */
-
-  /* clock clicks per tick */
-  cclicks_per_tick = sh_clicks_per_tick(
-     bsp_clicks_per_second / CLOCK_SCALE, microseconds_per_tick );
-
-  Clock_isrs_const = cclicks_per_tick >> 16 ;
-  if ( ( cclicks_per_tick | 0xffff ) > 0 )
-    Clock_isrs_const++ ;
-  Clock_limit = cclicks_per_tick / Clock_isrs_const ;
-  Clock_isrs = Clock_isrs_const;
-
-  rtems_interrupt_catch( Clock_isr, CLOCK_VECTOR, &Old_ticker );
-  /*
-   *  Hardware specific initialize goes here
-   */
-
-  /* stop Timer 0 */
-  temp8 = read8( ITU_TSTR) & ITU0_STARTMASK;
-  write8( temp8, ITU_TSTR);
-
-  /* set initial counter value to 0 */
-  write16( 0, ITU_TCNT0);
-
-  /* Timer 0 runs independent */
-  temp8 = read8( ITU_TSNC) & ITU0_SYNCMASK;
-  write8( temp8, ITU_TSNC);
-
-  /* Timer 0 normal mode */
-  temp8 = read8( ITU_TMDR) & ITU0_MODEMASK;
-  write8( temp8, ITU_TMDR);
-
-  /* TCNT is cleared by GRA ; internal clock /4 */
-  write8( ITU0_TCRMASK , ITU_TCR0);
-
-  /* use GRA without I/O - pins  */
-  write8( ITU0_TIORVAL, ITU_TIOR0);
-
-  /* reset flags of the status register */
-  temp8 = read8( ITU_TSR0) & ITU_STAT_MASK;
-  write8( temp8, ITU_TSR0);
-
-  /* Irq if is equal GRA */
-  temp8 = read8( ITU_TIER0) | ITU0_TIERMASK;
-  write8( temp8, ITU_TIER0);
-
-  /* set interrupt priority */
-  if( sh_set_irq_priority( CLOCK_VECTOR, CLOCKPRIO ) != RTEMS_SUCCESSFUL)
-    rtems_fatal_error_occurred( RTEMS_NOT_CONFIGURED);
-
-  /* set counter limits */
-  write16( Clock_limit, ITU_GRA0);
-
-  /* start counter */
-  temp8 = read8( ITU_TSTR) |~ITU0_STARTMASK;
-  write8( temp8, ITU_TSTR);
-
-  /*
-   *  Schedule the clock cleanup routine to execute if the application exits.
-   */
-
-  atexit( Clock_exit );
-}
-
-/*
- *  Clean up before the application exits
- */
-void Clock_exit( void )
-{
-  uint8_t   temp8 = 0;
-
-  /* turn off the timer interrupts */
-  /* set interrupt priority to 0 */
-  if( sh_set_irq_priority( CLOCK_VECTOR, 0 ) != RTEMS_SUCCESSFUL)
-    rtems_fatal_error_occurred( RTEMS_UNSATISFIED);
-
-/*
- *   temp16 = read16( ITU_TIER0) & IPRC_ITU0_IRQMASK;
- *   write16( temp16, ITU_TIER0);
- */
-
-  /* stop counter */
-  temp8 = read8( ITU_TSTR) & ITU0_STARTMASK;
-  write8( temp8, ITU_TSTR);
-
-  /* old vector shall not be installed */
-}
-
-/*
- *  Clock_initialize
- *
- *  Device driver entry point for clock tick driver initialization.
- */
-
-rtems_device_driver Clock_initialize(
-  rtems_device_major_number major,
-  rtems_device_minor_number minor,
-  void *pargp
-)
-{
-  Install_clock( Clock_isr );
-
-  return RTEMS_SUCCESSFUL;
-}
diff --git a/c/src/lib/libbsp/sh/gensh1/clock/delay.c b/c/src/lib/libbsp/sh/gensh1/clock/delay.c
deleted file mode 100644
index 085771f777..0000000000
--- a/c/src/lib/libbsp/sh/gensh1/clock/delay.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- *  This routine is a simple spin delay
- *
- *  Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
- *
- *  COPYRIGHT (c) 1999, Ralf Corsepius, Ulm, Germany
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- *
- *  COPYRIGHT (c) 1989-1999.
- *  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>
-
-extern uint32_t bsp_clicks_per_second;
-
-/*
- *  Simple spin delay in microsecond units for device drivers.
- *  This is very dependent on the clock speed of the target.
- *
- *  Since we don't have a real time clock, this is a very rough
- *  approximation, assuming that each cycle of the delay loop takes
- *  approx. 4 machine cycles.
- *
- *  e.g.: clicks_per_second = 20MHz
- *        => 5e-8 secs per instruction
- *        => 4 * 5e-8 secs per delay loop
- */
-
-void CPU_delay( uint32_t   microseconds )
-{
-  register uint32_t   clicks_per_usec = bsp_clicks_per_second / 1000000;
-  register uint32_t   _delay = (microseconds) * (clicks_per_usec);
-
-  __asm__ volatile (
-"0:	add  #-4,%0\n\
-	nop\n\
-	cmp/pl %0\n\
-	bt 0b\n\
-	nop"
-     :: "r" (_delay) );
-}