s5j: add to support board_reset()

board_reset() is an interface which is called by boardctl() when the
BOARDIOC_RESET is requested. This commit adds an implementation of it.

Change-Id: I45c569a034ab189f7c2e76ef264b28a8136dee5e
Signed-off-by: Junhwan Park <junhwan.park@samsung.com>

diff --git a/os/arch/arm/src/s5j/Kconfig b/os/arch/arm/src/s5j/Kconfig
index b5b561d..0396661 100644 (file)
--- a/os/arch/arm/src/s5j/Kconfig
+++ b/os/arch/arm/src/s5j/Kconfig
@@ -17,6 +17,7 @@ config ARCH_CHIP_S5JT200
        select ARMV7R_ICACHE
        select ARMV7R_DCACHE
        select S5J_S5JT200
+       select ARCH_HAVE_RESET
 
 endchoice
 

diff --git a/os/arch/arm/src/s5j/Make.defs b/os/arch/arm/src/s5j/Make.defs
index 6396be9..eae5757 100644 (file)
--- a/os/arch/arm/src/s5j/Make.defs
+++ b/os/arch/arm/src/s5j/Make.defs
@@ -114,6 +114,7 @@ CHIP_CSRCS += s5j_boot.c s5j_irq.c
 CHIP_CSRCS += s5j_serial.c
 CHIP_CSRCS += s5j_mac.c
 CHIP_CSRCS += s5j_watchdog.c
+CHIP_CSRCS += s5j_systemreset.c
 
 CHIP_CSRCS += s5j_gpio.c
 ifeq ($(CONFIG_GPIO),y)

diff --git a/os/arch/arm/src/s5j/s5j_systemreset.c b/os/arch/arm/src/s5j/s5j_systemreset.c
new file mode 100644 (file)
index 0000000..341737c
--- /dev/null
+++ b/os/arch/arm/src/s5j/s5j_systemreset.c
@@ -0,0 +1,111 @@
+/****************************************************************************
+ *
+ * Copyright 2017 Samsung Electronics All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ *
+ ****************************************************************************/
+/****************************************************************************
+ * arch/arm/src/s5j/s5j_systemreset.c
+ *
+ *   Copyright (C) 2015 Gregory Nutt. All rights reserved.
+ *
+ * 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.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+#include <tinyara/config.h>
+
+#include <stdint.h>
+
+#include <tinyara/board.h>
+
+#include "up_arch.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_systemreset
+ *
+ * Description:
+ *   Internal, reset logic.
+ *
+ ****************************************************************************/
+static void up_systemreset(void)
+{
+       putreg32(0x1, 0x80090400);
+
+       /* Wait for the reset */
+       for (; ; );
+}
+
+/****************************************************************************
+ * Name: board_reset
+ *
+ * Description:
+ *   Reset board.  This function may or may not be supported by a
+ *   particular board architecture.
+ *
+ * Input Parameters:
+ *   status - Status information provided with the reset event.  This
+ *     meaning of this status information is board-specific.  If not used by
+ *     a board, the value zero may be provided in calls to board_reset.
+ *
+ * Returned Value:
+ *   If this function returns, then it was not possible to power-off the
+ *   board due to some constraints.  The return value int this case is a
+ *   board-specific reason for the failure to shutdown.
+ *
+ ****************************************************************************/
+#ifdef CONFIG_BOARDCTL_RESET
+int board_reset(int status)
+{
+       up_systemreset();
+
+       return 0;
+}
+#endif