2000-11-13 Jiri Gaisler <jgais@ws.estec.esa.nl>

	* Makefile.am, configure.in, gnatsupp/Makefile.am,
	gnatsupp/gnatsupp.c, include/Makefile.am, include/bsp.h,
	start/Makefile.am, startup/Makefile.am, startup/setvec.c,
	wrapup/Makefile.am:
	* erc32sonic: New directory.
	* erc32sonic/Makefile.am, erc32sonic/erc32sonic.c,
	erc32sonic/.cvsignore: New files.
	* include/erc32.h: New file.
	* startup/boardinit.S: New file.
	Big update of SPARC support for ERC32 and LEON.
	Added support for ERC32 without floating point.
	Added SONIC support as configured on Tharsys ERC32 board.
	The bsp's share various code in the shared directory:
	   gnat-support, start-up code, etc.
	To decrease the foot-print, I removed the 16 kbyte start-up
	stack that was put in .bss and never reused once the system
	was up. The stack is now put between the heap and the
	workspace. To reclaim it, the user can do a rtems_region_extend
	to merge the stack to the heap region once the system is up.

1 files changed, 0 insertions, 283 deletions

diff --git a/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c b/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c
deleted file mode 100644
index 8e2f0f2047..0000000000
--- a/c/src/lib/libbsp/sparc/erc32/startup/bspstart.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- *  This set of routines starts the application.  It includes application,
- *  board, and monitor specific initialization and configuration.
- *  The generic CPU dependent initialization has been performed
- *  before any of these are invoked.
- *
- *  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.OARcorp.com/rtems/license.html.
- *
- *  Ported to ERC32 implementation of the SPARC by On-Line Applications
- *  Research Corporation (OAR) under contract to the European Space 
- *  Agency (ESA).
- *
- *  ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995. 
- *  European Space Agency.
- *
- *  $Id$
- */
-
-#include <string.h>
-
-#include <bsp.h>
-#include <rtems/libio.h>
-#include <rtems/libcsupport.h>
-
-/*
- *  The original table from the application and our copy of it with
- *  some changes.
- */
- 
-extern rtems_configuration_table  Configuration;
-rtems_configuration_table         BSP_Configuration;
-
-rtems_cpu_table   Cpu_table;
-
-/*
- *  Tells us where to put the workspace in case remote debugger is present.
- */
-
-extern rtems_unsigned32  rdb_start;
-
-/*
- *  Mirror of the Timer Control Register
- */
-
-unsigned32 _ERC32_MEC_Timer_Control_Mirror;
-
-/*
- * Amount to increment itimer by each pass
- * It is a variable instead of a #define to allow the 'looptest'
- * script to bump it without recompiling rtems
- *
- *  NOTE:  This is based on the PA-RISC simulator.  I don't know if we
- *         can actually pull this trick on the SPARC simulator.
- */
-
-rtems_unsigned32 CPU_SPARC_CLICKS_PER_TICK;
-
-#if SIMSPARC_FAST_IDLE
-
-/*
- * Many of the tests are very slow on the simulator because they have
- * have 5 second delays hardwired in.
- *
- * Try to speed those tests up by speeding up the clock when in the idle task.
- *
- *  NOTE:  At the current setting, 5 second delays in the tests take 
- *         approximately 5 seconds of wall time. 
- */
-
-rtems_extension fast_idle_switch_hook(
-  rtems_tcb *current_task,
-  rtems_tcb *heir_task
-)
-{
-    static rtems_unsigned32 normal_clock = ~0;
-    static rtems_unsigned32 fast_clock;
-
-    /* init our params on first call */
-    if (normal_clock == ~0)
-    {
-        normal_clock = CPU_SPARC_CLICKS_PER_TICK;
-        fast_clock = CPU_SPARC_CLICKS_PER_TICK / 0x08;
-        if (fast_clock == 0)    /* handle pathological case */
-            fast_clock++;
-    }
-
-    /*
-     * Run the clock faster when idle is in place.
-     */
-
-    if (heir_task == _Thread_Idle)
-        CPU_SPARC_CLICKS_PER_TICK = fast_clock;
-    else if (current_task == _Thread_Idle)
-        CPU_SPARC_CLICKS_PER_TICK = normal_clock;
-}
-
-#endif
-
-/*
- *  Use the shared implementations of the following routines
- */
- 
-void bsp_postdriver_hook(void);
-void bsp_libc_init( void *, unsigned32, int );
-extern void bsp_spurious_initialize();
-
-/*
- *  bsp_pretasking_hook
- *
- *  BSP pretasking hook.  Called just before drivers are initialized.
- *  Used to setup libc and install any BSP extensions.
- */
-
-void bsp_pretasking_hook(void)
-{
-  extern int end;
-  rtems_unsigned32 heap_start;
-  rtems_unsigned32 heap_size;
-
-  heap_start = (rtems_unsigned32) &end;
-  if (heap_start & (CPU_ALIGNMENT-1))
-    heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
-
-  heap_size = BSP_Configuration.work_space_start - (void *)&end;
-  heap_size &= 0xfffffff0;  /* keep it as a multiple of 16 bytes */
-
-  bsp_libc_init((void *) heap_start, heap_size, 0);
-
-
-#if SIMSPARC_FAST_IDLE
-  /*
-   *  Install the fast idle task switch extension
-   *
-   *  On MP systems, might not want to do this; it confuses at least
-   *  one test (mp06) on the PA-RISC simulator
-   */
-
-#if 0
-  if (BSP_Configuration.User_multiprocessing_table == 0)
-#endif
-  {
-    rtems_extensions_table  fast_idle_extension;
-    rtems_id                extension_id;
-    rtems_status_code       rc;
-
-    memset(&fast_idle_extension, 0, sizeof(fast_idle_extension));
-
-    fast_idle_extension.thread_switch  = fast_idle_switch_hook;
-
-    rc = rtems_extension_create(
-      rtems_build_name('F', 'D', 'L', 'E'),
-      &fast_idle_extension, 
-      &extension_id
-    );
-    if (rc != RTEMS_SUCCESSFUL)
-      rtems_fatal_error_occurred(rc);
-  }
-#endif
-
-#ifdef RTEMS_DEBUG
-  rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
-#endif
-
-  bsp_spurious_initialize();
-}
-
-/*
- *  ERC32_Idle_thread_body
- *
- *  ERC32 specific idle task that enters low power mode.
- */
-
-void ERC32_Idle_thread_body( void ) 
-{
-  while (1) {
-    ERC32_MEC.Power_Down = 0;   /* value is irrelevant */
-  }
-}
-
-
-
-/*
- *  bsp_start
- *
- *  This routine does the bulk of the system initialization.
- */
-
-void bsp_start( void )
-{
-  unsigned char *work_space_start;
-
-  /* Check if MEC is initialised */
-
-  if (!(ERC32_MEC.Control & 0xfe080000)) {
-
-  /*
-   *  DISABLE THE HARDWARE WATCHDOG!!!
-   */
-
-    ERC32_MEC.Watchdog_Trap_Door_Set = 0;          /* value is irrelevant */
-
-  /*
-   *  Reduce the number of wait states to 0 for all memory areas.
-   */
-
-    ERC32_MEC.Wait_State_Configuration = 0; 
-
-  }
-
-  /*
-   *  Initialize the mirror of the Timer Control register.
-   */
-
-  _ERC32_MEC_Timer_Control_Mirror = 0;
-  ERC32_MEC.Timer_Control = 0;
-
-  ERC32_MEC.Control |= ERC32_CONFIGURATION_POWER_DOWN_ALLOWED;
-  
-  /*
-   * Set up our hooks
-   * Make sure libc_init is done before drivers initialized so that
-   * they can use atexit()
-   */
-
-  Cpu_table.pretasking_hook = bsp_pretasking_hook;    /* init libc, etc. */
-  Cpu_table.postdriver_hook = bsp_postdriver_hook;
-
-  /*
-   *  SIS does zero out memory BUT only when IT begins execution.  Thus
-   *  if we want to have a clean slate in the workspace each time we
-   *  begin execution of OUR application, then we must zero the workspace.
-   */
-  Cpu_table.do_zero_of_workspace = TRUE;
-
-  /*
-   *  ERC32 specific idle task.
-   */
-
-  Cpu_table.idle_task = ERC32_Idle_thread_body;
-
-  /*
-   *  This should be enough interrupt stack.
-   */
-
-  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
-
-  work_space_start = 
-    (unsigned char *)rdb_start - BSP_Configuration.work_space_size;
-
-  if ( work_space_start <= (unsigned char *)&end ) {
-    DEBUG_puts( "bspstart: Not enough RAM!!!\n" );
-    BSP_fatal_return();
-  }
-
-  BSP_Configuration.work_space_start = work_space_start;
-
-#if SIMSPARC_FAST_IDLE
-  /*
-   * Add 1 extension for fast idle
-   */
-
-  BSP_Configuration.maximum_extensions++;
-#endif
-
-  /*
-   * Add 1 extension for MPCI_fatal
-   */
-
-  if (BSP_Configuration.User_multiprocessing_table)
-    BSP_Configuration.maximum_extensions++;
-
-  /*
-   * Set the "clicks per tick" for the simulator
-   *  used by XXX/clock/clock.c to schedule interrupts
-   */
-
-  CPU_SPARC_CLICKS_PER_TICK = BSP_Configuration.microseconds_per_tick;
-}