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boards/sama5d3-xplained: Add reboot support.

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The peripheral reset flag was added to speed up the reboot.
Rebooting takes too long (15 seconds) if this flag is not set.
This commit is contained in:
Lwazi Dube 2023-03-19 19:33:23 -04:00 committed by Petro Karashchenko
parent cc2b0e2594
commit f5575b1b85
4 changed files with 73 additions and 0 deletions
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3
arch/arm/src/sama5/hardware/sam_rstc.h
View File

@ -51,6 +51,9 @@
/* Reset Controller Control Register */
#define RSTC_CR_PROCRST (1 << 0) /* Bit 0: Processor Reset */
#if defined(CONFIG_ARCH_CHIP_SAMA5D3)
# define RSTC_CR_PERRST (1 << 2) /* Bit 2: Peripheral Reset */
#endif
#define RSTC_CR_EXTRST (1 << 3) /* Bit 3: External Reset */
#define RSTC_CR_KEY_SHIFT (24) /* Bits 24-31: Password */
#define RSTC_CR_KEY_MASK (0xff << RSTC_CR_KEY_SHIFT)

4
arch/arm/src/sama5/sam_systemreset.c
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@ -57,6 +57,10 @@ void up_systemreset(void)
rstcr = (RSTC_CR_PROCRST | RSTC_CR_KEY);
#if defined(CONFIG_ARCH_CHIP_SAMA5D3)
rstcr |= RSTC_CR_PERRST;
#endif
#if defined(CONFIG_SAMA5_EXTRESET_ERST) && CONFIG_SAMA5_EXTRESET_ERST != 0
rstcr |= RSTC_CR_EXTRST;

4
boards/arm/sama5/sama5d3-xplained/src/Makefile
View File

@ -112,4 +112,8 @@ ifeq ($(CONFIG_ARCH_BUTTONS),y)
CSRCS += sam_buttons.c
endif
ifeq ($(CONFIG_BOARDCTL_RESET),y)
CSRCS += sam_reset.c
endif
include $(TOPDIR)/boards/Board.mk

62
boards/arm/sama5/sama5d3-xplained/src/sam_reset.c Normal file
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@ -0,0 +1,62 @@
/****************************************************************************
* boards/arm/sama5/sama5d3-xplained/src/sam_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 <nuttx/arch.h>
#include <nuttx/board.h>
#ifdef CONFIG_BOARDCTL_RESET
/****************************************************************************
* 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().
*
* 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)
{
up_systemreset();
return 0;
}
#endif /* CONFIG_BOARDCTL_RESET */