Back out changes from 2008-05-16 -- they don't seem to work.

1 files changed, 24 insertions, 4 deletions

diff --git a/c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c b/c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c
index cc4ed30f67..ebbda06d6e 100644
--- a/c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c
+++ b/c/src/lib/libbsp/m68k/uC5282/startup/bspstart.c
@@ -227,14 +227,34 @@ static void handler(int pc)
 void bsp_start( void )
 {
   int i;
+  extern char _WorkspaceBase[];
   extern char _RamBase[], _RamSize[];
+  extern unsigned long  _M68k_Ramsize;
+
+  _M68k_Ramsize = (unsigned long)_RamSize;      /* RAM size set in linker script */
+
+  /*
+   *  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.
+   */
+
+    /*
+     * Set up default exception handler
+     */
+    for (i = 2 ; i < 256 ; i++)
+        if (i != (32+2)) /* Catch all but bootrom system calls */
+            *((void (**)(int))(i * 4)) = handler;
 
   /*
-   * Set up default exception handler
+   *  Need to "allocate" the memory for the RTEMS Workspace and
+   *  tell the RTEMS configuration where it is.  This memory is
+   *  not malloc'ed.  It is just "pulled from the air".
    */
-  for (i = 2 ; i < 256 ; i++)
-    if (i != (32+2)) /* Catch all but bootrom system calls */
-      *((void (**)(int))(i * 4)) = handler;
+
+  Configuration.work_space_start = (void *)_WorkspaceBase;
 
   /*
    * Invalidate the cache and disable it