bsps: Move benchmark timer to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

1 files changed, 83 insertions, 0 deletions

diff --git a/bsps/m68k/gen68360/btimer/btimer.c b/bsps/m68k/gen68360/btimer/btimer.c
new file mode 100644
index 0000000000..40a3e0a4c1
--- /dev/null
+++ b/bsps/m68k/gen68360/btimer/btimer.c
@@ -0,0 +1,83 @@
+/*
+ * Use TIMER 1 and TIMER 2 for Timing Test Suite
+ * The hardware on the MC68360 makes these routines very simple.
+ *
+ * Based on the `gen68302' board support package, and covered by the
+ * original distribution terms.
+ *
+ * W. Eric Norum
+ * Saskatchewan Accelerator Laboratory
+ * University of Saskatchewan
+ * Saskatoon, Saskatchewan, CANADA
+ * eric@skatter.usask.ca
+ */
+
+/*
+ *
+ *  Input parameters:  NONE
+ *
+ *  Output parameters:  NONE
+ *
+ *  NOTE: It is important that the timer start/stop overhead be
+ *        determined when porting or modifying this code.
+ *
+ *  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.org/license/LICENSE.
+ */
+
+#include <rtems.h>
+#include <rtems/btimer.h>
+#include <bsp.h>
+#include <rtems/m68k/m68360.h>
+
+void
+benchmark_timer_initialize (void)
+{
+	/*
+	 * Reset timers 1 and 2
+	 */
+	m360.tgcr &= ~0x00FF;
+	m360.tcn1 = 0;
+	m360.tcn2 = 0;
+	m360.ter1 = 0xFFFF;
+	m360.ter2 = 0xFFFF;
+
+	/*
+	 * Cascade timers 1 and 2
+	 */
+	m360.tgcr |= 0x0080;
+
+	/*
+	 * Configure timers 1 and 2 to a single 32-bit, 1 MHz timer.
+	 * HARDWARE:
+	 *	Change the `25' to match your processor clock
+	 */
+	m360.tmr2 = ((25-1) << 8) | 0x2;
+	m360.tmr1 = 0;
+
+	/*
+	 * Start the timers
+	 */
+	m360.tgcr |=  0x0011;
+}
+
+/*
+ * Return timer value in microsecond units
+ */
+uint32_t
+benchmark_timer_read (void)
+{
+	unsigned short val;
+
+	val = m360.tcn1;
+	return val;
+}
+
+void
+benchmark_timer_disable_subtracting_average_overhead(bool find_flag)
+{
+}