From 19ca7978a660fd325d9a6b25f3dd964f81fe8b19 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Mon, 4 Oct 1999 20:41:28 +0000
Subject: Motorola MVME2307 BSP submitted by Jay Kulpinski
 <jskulpin@eng01.gdds.com>. No modifications made.

---
 .../lib/libbsp/powerpc/mvme2307/startup/bspstart.c | 159 +++++++++++++++++++++
 1 file changed, 159 insertions(+)
 create mode 100644 c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c

(limited to 'c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c')

diff --git a/c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c b/c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c
new file mode 100644
index 0000000000..a592cd0bc3
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/mvme2307/startup/bspstart.c
@@ -0,0 +1,159 @@
+/*
+ *  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) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  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.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+
+#include <libcsupport.h>
+
+#include <string.h>
+#include <fcntl.h>
+
+/*
+ *  The original table from the application and our copy of it with
+ *  some changes.
+ */
+ 
+rtems_configuration_table         BSP_Configuration;
+
+rtems_cpu_table   Cpu_table;
+
+
+
+/*
+ *  Use the shared implementations of the following routines
+ */
+ 
+void bsp_postdriver_hook(void);
+void bsp_libc_init( void *, unsigned32, int );
+
+/*
+ *  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;
+    rtems_isr_entry old_handler;
+    rtems_status_code sc;
+
+    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);
+
+    sc = interrupt_controller_init();
+
+
+
+#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 )
+{
+    unsigned char *work_space_start;
+    unsigned32 RAM_end = 0;
+
+#if 1
+    /* 
+    * Set MSR to show vectors at 0 XXX
+    */
+    rtems_unsigned32 msr_value;
+
+    _CPU_MSR_Value( msr_value );
+    msr_value &= ~PPC_MSR_EP;
+    _CPU_MSR_SET( msr_value );
+#endif
+
+    /*
+    * 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;
+
+    Cpu_table.interrupt_stack_size = (12 * 1024);
+
+    /*
+    *  The monitor likes the exception table to be at 0x0.
+    */
+
+    Cpu_table.exceptions_in_RAM = TRUE;
+
+    /*
+    #if defined(RTEMS_POSIX_API)
+    BSP_Configuration.work_space_size *= 3;
+    #endif
+    */
+
+    /* from PSIM - why? */
+    BSP_Configuration.work_space_size += 1024;
+
+    /* determine memory size */
+    switch (Falcon_MEMCR.MemSize) {
+        case RAM_16_MB:
+            RAM_end = 16 * 1024 * 1024;
+            break;
+        case RAM_32_MB:
+            RAM_end = 32 * 1024 * 1024;
+            break;
+        case RAM_64_MB:
+            RAM_end = 64 * 1024 * 1024;
+            break;
+        case RAM_128_MB:
+            RAM_end = 128 * 1024 * 1024;
+            break;
+    }
+    RAM_end -= 1024 * 1024;  /* reserve memory for PPCBUG */
+    work_space_start = 
+            (unsigned char *)RAM_end - BSP_Configuration.work_space_size;
+
+    if ( work_space_start <= (unsigned char *)&end ) {
+        printk( "bspstart: Not enough RAM!!!\n" );
+        bsp_cleanup();
+    }
+
+    BSP_Configuration.work_space_start = work_space_start;
+
+    /*
+    *  Account for the console's resources
+    */
+
+    console_reserve_resources( &BSP_Configuration );
+
+}
-- 
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