1 files changed, 141 insertions, 0 deletions
diff --git a/bsps/i386/pc386/start/bspstart.c b/bsps/i386/pc386/start/bspstart.c
new file mode 100644
index 0000000000..db1ca90cf4
--- /dev/null
+++ b/bsps/i386/pc386/start/bspstart.c
@@ -0,0 +1,141 @@
+/**
+ * @file
+ *
+ * This file contains the PC386 BSP startup package. It includes application,
+ * board, and monitor specific initialization and configuration.
+ */
+
+/*
+ * This file was initially written by Joel Sherrill as part of the go32 BSP.
+ * It was subsequently adapted as part of the pc386 BSP by developers from
+ * the NavIST Group in 1997.
+ *
+ * Copyright (c) 2016.
+ * Chris Johns <chrisj@rtems.org>
+ *
+ * COPYRIGHT (c) 1989-2008, 2016.
+ * 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.org/license/LICENSE.
+ *
+ * (C) Copyright 1997 -
+ * - NavIST Group - Real-Time Distributed Systems and Industrial Automation
+ * Instituto Superior Tecnico * Lisboa * PORTUGAL (http://pandora.ist.utl.pt)
+ *
+ * NavISY Disclaimer:
+ * This file is provided "AS IS" without warranty of any kind, either
+ * expressed or implied.
+ */
+
+#include <bsp.h>
+#include <bsp/bspimpl.h>
+#include <bsp/irq.h>
+#include <rtems/pci.h>
+#include <libcpu/cpuModel.h>
+
+/*
+ * PCI Bus Configuration
+ */
+rtems_pci_config_t BSP_pci_configuration = {
+  (volatile unsigned char*)0,
+  (volatile unsigned char*)0,
+  NULL
+};
+
+/*
+ * Helper to initialize the PCI Bus
+ */
+static void bsp_pci_initialize_helper(void)
+{
+  const pci_config_access_functions *pci_accessors;
+
+  pci_accessors = pci_bios_initialize();
+  if (pci_accessors != NULL) {
+    printk("PCI bus: using PCI BIOS interface\n");
+    BSP_pci_configuration.pci_functions = pci_accessors;
+    return;
+  }
+
+  pci_accessors = pci_io_initialize();
+  if (pci_accessors != NULL) {
+    printk("PCI bus: using PCI I/O interface\n");
+    BSP_pci_configuration.pci_functions = pci_accessors;
+    return;
+  }
+
+  printk("PCI bus: could not initialize PCI BIOS interface\n");
+}
+
+/*-------------------------------------------------------------------------+
+|         Function: bsp_start
+|      Description: Called before main is invoked.
+| Global Variables: None.
+|        Arguments: None.
+|          Returns: Nothing.
++--------------------------------------------------------------------------*/
+static void bsp_start_default( void )
+{
+  /*
+   * Turn off watchdog
+   */
+  /*
+   * Calibrate variable for 1ms-loop (see timer.c)
+   */
+  Calibrate_loop_1ms();
+
+  /*
+   * Init rtems interrupt management
+   */
+  rtems_irq_mngt_init();
+
+  /*
+   * Init rtems exceptions management
+   */
+  rtems_exception_init_mngt();
+
+  /*
+   * init PCI Bios interface...
+   */
+  bsp_pci_initialize_helper();
+
+  /*
+   * Probe for legacy UARTs.
+   */
+  legacy_uart_probe();
+
+  /*
+   * Probe for UARTs on PCI.
+   */
+  pci_uart_probe();
+
+  /*
+   * Parse the GDB arguments and flag a serial port as not valid. This stops
+   * the console from claming the port.
+   */
+#if BSP_GDB_STUB
+  pc386_parse_gdb_arguments();
+#endif
+
+  /*
+   * Figure out where printk() and console IO is to be directed.  Do this after
+   * the legacy and PCI bus probes so we have a chance for those devices to be
+   * added to the set in the console driver.  In general, do it as early as
+   * possible so printk() has a chance to work early on devices found via PCI
+   * probe.
+   */
+  pc386_parse_console_arguments();
+
+  Clock_driver_install_handler();
+
+#if BSP_ENABLE_IDE
+  bsp_ide_cmdline_init();
+#endif
+} /* bsp_start_default */
+
+/*
+ *  By making this a weak alias for bsp_start_default, a brave soul
+ *  can override the actual bsp_start routine used.
+ */
+void bsp_start (void) __attribute__ ((weak, alias("bsp_start_default")));