add missing file

c/src/lib/libbsp/powerpc/qemuppc/ChangeLog

@@ -1,3 +1,7 @@
+2009-10-03	Thomas Doerfler <Thomas.Doerfler@embedded-brains.de>
+	* startup/bspstart.c:
+	add missing file
+
 2009-10-02	Thomas Doerfler <Thomas.Doerfler@embedded-brains.de>
 	* Makefile.am, irq/irq_config.h, irq/irq_init.c, irq/irq.h:
 	add basic IRQ support (for decrementer)

c/src/lib/libbsp/powerpc/qemuppc/startup/bspstart.c

@@ -0,0 +1,134 @@
+/*
+ *  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) 1989-2008.
+ *  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 <fcntl.h>
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <bsp/bootcard.h>
+#include <rtems/bspIo.h>
+#include <rtems/powerpc/powerpc.h>
+#include <libcpu/powerpc-utility.h>
+#include <libcpu/raw_exception.h>
+#include <bsp/irq-generic.h>
+#include <bsp/ppc_exc_bspsupp.h>
+
+#include <libcpu/cpuIdent.h>
+#include <libcpu/bat.h>
+#include <libcpu/spr.h>
+
+/*
+ * CPU Bus Frequency
+ */
+unsigned int BSP_bus_frequency;
+
+/*
+ *  Driver configuration parameters
+ */
+uint32_t   bsp_clicks_per_usec;
+
+/*
+ * Memory on this board.
+ */
+extern char RamSize[];
+extern char bsp_interrupt_stack_start[];
+extern char bsp_interrupt_stack_end[];
+extern char bsp_interrupt_stack_size[];
+uint32_t BSP_mem_size = (uint32_t)RamSize;
+
+/*
+ * Time base divisior (how many tick for 1 second).
+ */
+unsigned int BSP_time_base_divisor;
+
+/* Default decrementer exception handler */
+static int default_decrementer_exception_handler( BSP_Exception_frame *frame, unsigned number)
+{
+  ppc_set_decrementer_register(UINT32_MAX);
+
+  return 0;
+}
+
+/*
+ *  bsp_start
+ *
+ *  This routine does the bulk of the system initialization.
+ */
+
+void bsp_start( void )
+{
+  uint32_t intrStackStart;
+  uint32_t intrStackSize;
+  int rv = 0;
+  rtems_status_code sc;
+
+  /*
+   * Note we can not get CPU identification dynamically, so
+   * force current_ppc_cpu.
+   */
+  current_ppc_cpu = PPC_PSIM;
+
+  /*
+   *  initialize the device driver parameters
+   */
+  /* BSP_bus_frequency        = (unsigned int)&PSIM_INSTRUCTIONS_PER_MICROSECOND; */
+  /* bsp_clicks_per_usec      = BSP_bus_frequency; */
+  /* BSP_time_base_divisor    = 1; */
+
+  /*
+   * Initialize the interrupt related settings.
+   */
+  intrStackStart = (uint32_t) bsp_interrupt_stack_start;
+  intrStackSize =  (uint32_t) bsp_interrupt_stack_size;
+
+  BSP_mem_size = (uint32_t )RamSize;
+
+  /*
+   * Initialize default raw exception handlers.
+   */
+  ppc_exc_initialize(
+    PPC_INTERRUPT_DISABLE_MASK_DEFAULT,
+    intrStackStart,
+    intrStackSize
+  );
+
+  /* Install default handler for the decrementer exception */
+  rv = ppc_exc_set_handler( ASM_DEC_VECTOR, default_decrementer_exception_handler);
+  if (rv < 0) {
+    BSP_panic( "Cannot install decrementer exception handler!\n");
+  }
+
+  /* Initalize interrupt support */
+  sc = bsp_interrupt_initialize();
+  if (sc != RTEMS_SUCCESSFUL) {
+    BSP_panic( "Cannot intitialize interrupt support\n");
+  }
+
+#if 0
+  /*
+   * Setup BATs and enable MMU
+   */
+  /* Memory */
+  setdbat(0, 0x0<<24, 0x0<<24, 2<<24, _PAGE_RW);
+  setibat(0, 0x0<<24, 0x0<<24, 2<<24,        0);
+  /* PCI    */
+  setdbat(1, 0x8<<24, 0x8<<24, 1<<24,  IO_PAGE);
+  setdbat(2, 0xc<<24, 0xc<<24, 1<<24,  IO_PAGE);
+
+  _write_MSR(_read_MSR() | MSR_DR | MSR_IR);
+  asm volatile("sync; isync");
+#endif
+}