[rtems commit] bsp/riscv: Use CPU counter btimer

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    6552ba8c37c4da910a0b9888c5eee1cd2a2d4dbf
Changeset: http://git.rtems.org/rtems/commit/?id=6552ba8c37c4da910a0b9888c5eee1cd2a2d4dbf

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Tue Jul 24 10:10:12 2018 +0200

bsp/riscv: Use CPU counter btimer

Update #3433.

---

 bsps/riscv/riscv/btimer/btimer.c         | 68 --------------------------------
 c/src/lib/libbsp/riscv/riscv/Makefile.am |  2 +-
 2 files changed, 1 insertion(+), 69 deletions(-)

diff --git a/bsps/riscv/riscv/btimer/btimer.c b/bsps/riscv/riscv/btimer/btimer.c
deleted file mode 100644
index 796979f..0000000
--- a/bsps/riscv/riscv/btimer/btimer.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (c) 2015 University of York.
- * Hesham Almatary <hesham at alumni.york.ac.uk>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <rtems.h>
-#include <bsp.h>
-#include <rtems/btimer.h>
-#include <rtems/score/riscv-utility.h>
-
-bool benchmark_timer_find_average_overhead;
-
-static void benchmark_timer1_interrupt_handler(void)
-{
-}
-
-/* Start eCore tiemr 1 usef for profiling and timing analysis */
-void benchmark_timer_initialize( void )
-{
-  /* Install interrupt handler for timer 1 */
-}
-
-/*
- *  The following controls the behavior of benchmark_timer_read().
- *
- *  AVG_OVEREHAD is the overhead for starting and stopping the timer.  It
- *  is usually deducted from the number returned.
- *
- *  LEAST_VALID is the lowest number this routine should trust.  Numbers
- *  below this are "noise" and zero is returned.
- */
-
-#define AVG_OVERHEAD      0  /* It typically takes X.X microseconds */
-/* (Y countdowns) to start/stop the timer. */
-/* This value is in microseconds. */
-#define LEAST_VALID       1  /* Don't trust a clicks value lower than this */
-
-benchmark_timer_t benchmark_timer_read( void )
-{
-}
-
-void benchmark_timer_disable_subtracting_average_overhead(
-  bool find_flag
-)
-{
-  benchmark_timer_find_average_overhead = find_flag;
-}
diff --git a/c/src/lib/libbsp/riscv/riscv/Makefile.am b/c/src/lib/libbsp/riscv/riscv/Makefile.am
index 23c574f..ad8410f 100644
--- a/c/src/lib/libbsp/riscv/riscv/Makefile.am
+++ b/c/src/lib/libbsp/riscv/riscv/Makefile.am
@@ -46,7 +46,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-defa
 librtemsbsp_a_SOURCES +=../../../../../../bsps/riscv/riscv/clock/clockdrv.c
 
 # Timer
-librtemsbsp_a_SOURCES += ../../../../../../bsps/riscv/riscv/btimer/btimer.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/btimer/btimer-stub.c
 
 # IRQ
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/irq/irq-default-handler.c