2004-04-12 David Querbach <querbach@realtime.bc.ca>

	* .cvsignore, ChangeLog, Makefile.am, README, bsp_specs, configure.ac,
	times, clock/p_clock.c, console/console.c, include/.cvsignore,
	include/bsp.h, include/coverhd.h, irq/irq.h, startup/bspstart.c,
	startup/iss555.c, startup/linkcmds, startup/start.S,
	wrapup/.cvsignore, wrapup/Makefile.am: New files.

1 files changed, 203 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/powerpc/ss555/startup/bspstart.c b/c/src/lib/libbsp/powerpc/ss555/startup/bspstart.c
new file mode 100644
index 0000000000..b1465298a6
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/ss555/startup/bspstart.c
@@ -0,0 +1,203 @@
+/*  bspstart.c
+ *
+ *  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 this routine is invoked.
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  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.com/license/LICENSE.
+ *
+ *  SS555 port sponsored by Defence Research and Development Canada - Suffield
+ *  Copyright (C) 2004, Real-Time Systems Inc. (querbach@realtime.bc.ca)
+ *
+ *  Derived from c/src/lib/libbsp/powerpc/mbx8xx/startup/bspstart.c:
+ *
+ *  Modifications for MBX860:
+ *  Copyright (c) 1999, National Research Council of Canada
+ *
+ *  $Id$
+ */
+
+#include <string.h>
+
+#include <rtems/libio.h>
+#include <rtems/libcsupport.h>
+#include <rtems/bspIo.h>
+
+#include <libcpu/cpuIdent.h>
+#include <libcpu/spr.h>
+
+#include <bsp/irq.h>
+#include <bsp.h>
+
+
+SPR_RW(SPRG0)
+SPR_RW(SPRG1)
+
+/*
+ *  The original table from the application (in ROM) and our copy of it with
+ *  some changes. Configuration is defined in <confdefs.h>. Make sure that
+ *  our configuration tables are uninitialized so that they get allocated in
+ *  the .bss section (RAM).
+ */
+extern rtems_configuration_table Configuration;
+extern unsigned long intrStackPtr;
+rtems_configuration_table  BSP_Configuration;
+
+rtems_cpu_table Cpu_table;
+
+char *rtems_progname;
+
+/*
+ *  Use the shared implementations of the following routines.
+ *  Look in rtems/c/src/lib/libbsp/shared/bsppost.c and
+ *  rtems/c/src/lib/libbsp/shared/bsplibc.c.
+ */
+void bsp_postdriver_hook(void);
+void bsp_libc_init( void *, unsigned32, int );
+
+void BSP_panic(char *s)
+{
+  printk("%s PANIC %s\n",_RTEMS_version, s);
+  __asm__ __volatile ("sc"); 
+}
+
+void _BSP_Fatal_error(unsigned int v)
+{
+  printk("%s PANIC ERROR %x\n",_RTEMS_version, v);
+  __asm__ __volatile ("sc"); 
+}
+
+/*
+ *  bsp_pretasking_hook
+ *
+ *  Called when RTEMS initialization is complete but before interrupts and
+ *  tasking are enabled. Used to setup libc and install any BSP extensions.
+ *
+ *  Must not use libc (to do io) from here, since drivers are not yet
+ *  initialized.
+ *
+ *  Installed in the rtems_cpu_table defined in
+ *  rtems/c/src/exec/score/cpu/powerpc/rtems/new-exceptions/cpu.h by main()
+ *  below.  Called from rtems_initialize_executive() defined in
+ *  rtems/c/src/exec/sapi/src/init.c
+ *
+ *  Input parameters: NONE
+ *
+ *  Output parameters: NONE
+ *
+ *  Return values: NONE
+ */
+void bsp_pretasking_hook(void)
+{
+  /* 
+   *  These are assigned addresses in the linkcmds file for the BSP. This
+   *  approach is better than having these defined as manifest constants and
+   *  compiled into the kernel, but it is still not ideal when dealing with
+   *  multiprocessor configuration in which each board as a different memory
+   *  map. A better place for defining these symbols might be the makefiles.
+   *  Consideration should also be given to developing an approach in which
+   *  the kernel and the application can be linked and burned into ROM
+   *  independently of each other.
+   */
+    unsigned char *_HeapStart = 
+      (char*)BSP_Configuration.work_space_start 
+           + BSP_Configuration.work_space_size;
+    extern unsigned char _HeapEnd[];
+
+    bsp_libc_init( _HeapStart, _HeapEnd - _HeapStart, 0 );
+  
+#ifdef RTEMS_DEBUG
+  rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+}
+
+
+/*
+ *  bsp_start()
+ *
+ *  Board-specific initialization code. Called from the generic boot_card()
+ *  function defined in rtems/c/src/lib/libbsp/shared/main.c. That function
+ *  does some of the board independent initialization. It is called from the
+ *  SS555 entry point _start() defined in
+ *  rtems/c/src/lib/libbsp/powerpc/ss555/startup/start.S
+ *
+ *  _start() has set up a stack, has zeroed the .bss section, has set up the
+ *  .data section from contents stored in ROM, has turned off interrupts,
+ *  and placed the processor in the supervisor mode.  boot_card() has left
+ *  the processor in that state when bsp_start() was called.
+ *
+ *  Input parameters: NONE
+ *
+ *  Output parameters: NONE
+ *
+ *  Return values: NONE
+ */
+void bsp_start(void)
+{
+  extern char _WorkspaceBase[];
+  
+  ppc_cpu_id_t myCpu;
+  ppc_cpu_revision_t myCpuRevision;
+  register unsigned char* intrStack;
+  
+  /*
+   * Get CPU identification dynamically.  Note that the get_ppc_cpu_type()
+   * function stores the result in global variables so that it can be used
+   * later.
+   */
+  myCpu 	= get_ppc_cpu_type();
+  myCpuRevision = get_ppc_cpu_revision();
+
+  /*
+   * Initialize some SPRG registers related to irq handling
+   */
+  intrStack = (((unsigned char*)&intrStackPtr) - CPU_MINIMUM_STACK_FRAME_SIZE);
+  _write_SPRG1((unsigned int)intrStack);
+  /* signal them that we have fixed PR288 - eventually, this should go away */
+  _write_SPRG0(PPC_BSP_HAS_FIXED_PR288);
+
+  /*
+   * Install our own set of exception vectors
+   */
+  initialize_exceptions();
+
+  /*
+   *  Allocate the memory for the RTEMS Work Space.  This can come from
+   *  a variety of places: hard coded address, malloc'ed from outside
+   *  RTEMS world (e.g. simulator or primitive memory manager), or (as
+   *  typically done by stock BSPs) by subtracting the required amount
+   *  of work space from the last physical address on the CPU board.
+   *
+   *  In this case, the memory is not malloc'ed.  It is just
+   *  "pulled from the air".
+   */
+  BSP_Configuration.work_space_start = _WorkspaceBase;
+
+  /*
+   *  initialize the CPU table for this BSP
+   */
+  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
+  Cpu_table.postdriver_hook = bsp_postdriver_hook;
+  if( Cpu_table.interrupt_stack_size < 4 * 1024 )
+      Cpu_table.interrupt_stack_size = 4 * 1024;
+
+  Cpu_table.clicks_per_usec = BSP_CRYSTAL_HZ / 4 / 1000000;
+  Cpu_table.clock_speed = BSP_CLOCK_HZ;	/* for SCI baud rate generator */
+
+  /* 
+   * Call this in case we use TERMIOS for console I/O
+   */
+  m5xx_uart_reserve_resources( &BSP_Configuration );
+
+  /*
+   * Initalize RTEMS IRQ system
+   */
+  BSP_rtems_irq_mng_init(0);
+}
+