1 files changed, 71 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/mpc8260ads/clock/p_clock.c b/c/src/lib/libbsp/powerpc/mpc8260ads/clock/p_clock.c
new file mode 100644
index 0000000000..5b514cab4b
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/mpc8260ads/clock/p_clock.c
@@ -0,0 +1,71 @@
+/*
+ *  Clock Tick interrupt conexion code.
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may in
+ *  the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  Modified to support the MPC750.
+ *  Modifications Copyright (c) 1999 Eric Valette valette@crf.canon.fr
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <bspIo.h>
+#include <bsp/irq.h>
+
+extern void clockOn(void*);
+extern void clockOff (void*);
+extern int clockIsOn(void*);
+extern void Clock_isr();
+
+static rtems_irq_connect_data clockIrqData = {BSP_PERIODIC_TIMER,
+					      (rtems_irq_hdl)Clock_isr,
+					      (rtems_irq_enable)clockOn,
+					      (rtems_irq_disable)clockOff,
+					      (rtems_irq_is_enabled)clockIsOn};
+					      
+int BSP_get_clock_irq_level()
+{
+  /*
+   * Caution : if you change this, you must change the
+   * definition of BSP_PERIODIC_TIMER accordingly
+   */
+  return BSP_PERIODIC_TIMER;
+}
+
+int BSP_disconnect_clock_handler (void)
+{
+  if (!BSP_get_current_rtems_irq_handler(&clockIrqData)) {
+     printk("Unable to stop system clock\n");
+    rtems_fatal_error_occurred(1);
+  }
+  return BSP_remove_rtems_irq_handler (&clockIrqData);
+}
+
+int BSP_connect_clock_handler (rtems_irq_hdl hdl)
+{
+  if (!BSP_get_current_rtems_irq_handler(&clockIrqData)) {
+     printk("Unable to get system clock handler\n");
+    rtems_fatal_error_occurred(1);
+  }
+  if (!BSP_remove_rtems_irq_handler (&clockIrqData)) {
+   printk("Unable to remove current system clock handler\n");
+    rtems_fatal_error_occurred(1);
+  }
+  /*
+   * Reinit structure
+   */
+  clockIrqData.name = BSP_PERIODIC_TIMER;
+  clockIrqData.hdl = (rtems_irq_hdl) hdl;
+  clockIrqData.on = (rtems_irq_enable)clockOn;
+  clockIrqData.off = (rtems_irq_enable)clockOff;
+  clockIrqData.isOn = (rtems_irq_is_enabled)clockIsOn;
+
+  return BSP_install_rtems_irq_handler (&clockIrqData);
+}