1 files changed, 143 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/nios2/nios2_iss/startup/bspstart.c b/c/src/lib/libbsp/nios2/nios2_iss/startup/bspstart.c
new file mode 100644
index 0000000000..8317b59516
--- /dev/null
+++ b/c/src/lib/libbsp/nios2/nios2_iss/startup/bspstart.c
@@ -0,0 +1,143 @@
+/*
+ *  This routine 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) 2005-2006 Kolja Waschk rtemsdev/ixo.de
+ *  Derived from no_cpu/no_bsp/startup/bspstart.c 1.23.
+ *  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.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#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;
+
+/*
+ *  Use the shared implementations of the following routines
+ */
+
+extern void bsp_postdriver_hook(void);
+extern void bsp_libc_init( void *, uint32_t, int );
+extern rtems_configuration_table  BSP_Configuration;
+
+#if 0
+extern char         _RAMBase[];
+extern char         _RAMSize[];
+extern char         _WorkspaceBase[];
+extern char         _HeapSize[];
+#else
+extern char __alt_heap_start[];
+#endif
+
+/*
+ *  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)
+{
+    unsigned long heapStart;
+#if 0
+    unsigned long heapSize = (unsigned long)_HeapSize;
+#endif
+    unsigned long ramSpace;
+
+    heapStart = (unsigned long)BSP_Configuration.work_space_start
+              + BSP_Configuration.work_space_size;
+
+    if (heapStart & (CPU_ALIGNMENT-1))
+        heapStart = (heapStart + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1);
+
+#if 0
+    ramSpace = (unsigned long)_RAMBase + (unsigned long)_RAMSize - heapStart;
+#else
+#if 0
+    ramSpace = SRAM_0_BASE 
+             + (SRAM_0_SRAM_MEMORY_SIZE * SRAM_0_SRAM_MEMORY_UNITS)
+             - heapStart;
+#else
+    ramSpace = RAM_BASE + RAM_BYTES - heapStart;
+#endif
+#endif
+
+    /* TODO */
+    ramSpace -= 16384; /* Space for initial stack, not to be zeroed */
+
+#if 0
+    if (heapSize < 10)
+        heapSize = ramSpace;
+    else if (heapSize > ramSpace)
+        rtems_fatal_error_occurred (('H'<<24) | ('E'<<16) | ('A'<<8) | 'P');
+
+    bsp_libc_init((void *)heapStart, heapSize, 0);
+#else
+    bsp_libc_init((void *)heapStart, ramSpace, 0);
+#endif
+
+#ifdef RTEMS_DEBUG
+    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+}
+
+/*
+ *  bsp_start
+ *
+ *  This routine does the bulk of the system initialization.
+ */
+
+void bsp_start( void )
+{
+  /* Fixed */
+
+  BSP_Configuration.microseconds_per_tick = 1000;
+
+  /*
+   *  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".
+   */
+
+#if 0
+  BSP_Configuration.work_space_start = (void *)_WorkspaceBase;
+#else
+  BSP_Configuration.work_space_start = (void *)__alt_heap_start;
+#endif
+
+  /*
+   *  initialize the CPU table for this BSP
+   */
+
+  Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
+  Cpu_table.postdriver_hook = bsp_postdriver_hook;
+  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
+}