1 files changed, 85 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/startup/pretaskinghook.c b/c/src/lib/libbsp/powerpc/shared/startup/pretaskinghook.c
new file mode 100644
index 0000000000..0879503199
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/shared/startup/pretaskinghook.c
@@ -0,0 +1,85 @@
+/*
+ *  bsp_pretasking_hook().
+ *  Initializes the heap, libc and VME.
+ *
+ *  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.
+ *
+ *  Modified to support the MCP750.
+ *  Modifications Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
+ *
+ *  $Id$
+ */
+
+#include <string.h>
+
+#include <bsp.h>
+#include <bsp/consoleIo.h>
+#ifndef BSP_HAS_NO_VME
+#include <bsp/VME.h>
+#endif
+
+void bsp_libc_init( void *, uint32_t, int );
+
+/*
+ *  Function:   bsp_pretasking_hook
+ *  Created:    95/03/10
+ *
+ *  Description:
+ *      BSP pretasking hook.  Called just before drivers are initialized.
+ *      Used to setup libc and install any BSP extensions.
+ *
+ *  NOTES:
+ *      Must not use libc (to do io) from here, since drivers are
+ *      not yet initialized.
+ *
+ */
+
+void bsp_pretasking_hook(void)
+{
+  uint32_t        heap_size;
+  uint32_t        heap_sbrk_spared;
+  extern uint32_t _bsp_sbrk_init(uint32_t, uint32_t*);
+  extern void     BSP_vme_config();
+
+  /* make sure it's properly aligned */
+  BSP_heap_start = (BSP_heap_start + CPU_ALIGNMENT - 1) & ~(CPU_ALIGNMENT-1);
+
+  heap_size = (BSP_mem_size - BSP_heap_start) - BSP_Configuration.work_space_size;
+  heap_sbrk_spared=_bsp_sbrk_init(BSP_heap_start, &heap_size);
+
+#ifdef SHOW_MORE_INIT_SETTINGS
+  printk( "HEAP start %x  size %x (%x bytes spared for sbrk)\n",
+             BSP_heap_start, heap_size, heap_sbrk_spared);
+#endif    
+
+  bsp_libc_init((void *) 0, heap_size, heap_sbrk_spared);
+
+  /* Note that VME support may be omitted also by
+   * providing a NULL BSP_vme_config routine
+   * (e.g., linker script)
+   */
+#ifndef BSP_HAS_NO_VME
+  /*
+   * Initialize VME bridge - needs working PCI
+   * and IRQ subsystems...
+   *
+   * NOTE: vmeUniverse driver now uses shared interrupts.
+   *       this requires workspace which is not available
+   *       from bspstart()...
+   */
+#ifdef SHOW_MORE_INIT_SETTINGS
+  printk("Going to initialize VME bridge\n");
+#endif
+  if ( BSP_vme_config )
+    BSP_vme_config();
+#endif
+
+#ifdef RTEMS_DEBUG
+  rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+}