nuttx/boards/risc-v/bl602/bl602evb/src/bl602_reset.c
2021-03-09 23:18:28 +08:00

87 lines
2.7 KiB
C

/****************************************************************************
* boards/risc-v/bl602/bl602evb/src/bl602_reset.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <errno.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <bl602_systemreset.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_reset
*
* Description:
* Reset board. Support for this function is required by board-level
* logic if CONFIG_BOARDCTL_RESET is selected.
*
* 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().
* Valid inputs:
* 0 -- sys reset (default nsh reboot cmd)
* 1 -- cpu reset
* 2 -- por 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.
*
****************************************************************************/
int board_reset(int status)
{
switch (status)
{
case 0:
up_systemreset();
break;
case 1:
bl602_cpu_reset();
break;
case 2:
bl602_por_reset();
break;
default:
return -EINVAL;
}
/* If we get here something went very wrong in the reset */
return -EIO;
}