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SAMA5: Initial WDT timer (untested)
This commit is contained in:
Gregory Nutt
@@ -5825,4 +5825,6 @@
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* arch/arm/src/sama5/sam_rtc.h and other files: Hook the SAMA5 RTC
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driver into the build system; Verify the correct operation of the
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SAMA5 RTC driver (2013-10-19).
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* arch/arm/src/sama5/sam_wdt.c and .h: Add a SAMA5 watchdog timer
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drvier. Untested on initial check-in (2013-10-19).
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@@ -100,7 +100,7 @@ config SAMA5_PIT
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config SAMA5_WDT
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bool "Watchdog timer Interrupt (WDT)"
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default n
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select WDT
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select WATCHDOG
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config SAMA5_RTC
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bool "Real time clock calendar (RTC)"
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@@ -2019,6 +2019,41 @@ endif # SAMA5_TSD
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endmenu # Touchscreen Configuration
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endif # SAMA5_ADC
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if SAMA5_WDT
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menu "Watchdog Configuration"
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config SAMA5_WDT_INTERRUPT
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bool "Interrupt on timeout"
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default n
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---help---
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The normal behavior is to reset everything when a watchdog timeout
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occurs. An alternative behavior is to simply interrupt when the
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timeout occurs. This setting enables that alternative behavior.
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config SAMA5_WDT_DEBUGHALT
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bool "Halt on DEBUG"
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default y if DEBUG
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default n if !DEBUG
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---help---
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Halt the watchdog timer in the debug state
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config SAMA5_WDT_IDLEHALT
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bool "Halt in IDLE"
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default y
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---help---
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Halt the watchdog timer in the IDLE state
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config SAMA5_WDT_REGDEBUG
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bool "Register level debug"
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default n
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depends on DEBUG
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---help---
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Enable low-level register debug output
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endmenu # Watchdog configuration
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endif # SAMA5_WDT
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menu "External Memory Configuration"
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config SAMA5_DDRCS
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@@ -114,6 +114,10 @@ ifeq ($(CONFIG_SAMA5_RTC),y)
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CHIP_CSRCS += sam_rtc.c
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endif
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ifeq ($(CONFIG_SAMA5_WDT),y)
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CHIP_CSRCS += sam_wdt.c
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endif
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ifeq ($(CONFIG_SAMA5_SPI0),y)
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CHIP_CSRCS += sam_spi.c
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else
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@@ -182,7 +182,7 @@ int sam_emac_initialize(void);
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* Some boards require specialized initialization of the PHY before it can be used.
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* This may include such things as configuring GPIOs, resetting the PHY, etc. If
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* CONFIG_SAMA5_PHYINIT is defined in the configuration then the board specific
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* logic must provide sam_phyinitialize(); The STM32 Ethernet driver will call
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* logic must provide sam_phyinitialize(); The SAMA5 Ethernet driver will call
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* this function one time before it first uses the PHY.
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*
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* Parameters:
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@@ -1,5 +1,5 @@
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/************************************************************************************
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* arch/arm/src/sama5/stm_rtc.h
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* arch/arm/src/sama5/sam_rtc.h
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,96 @@
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/****************************************************************************
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* arch/arm/src/sama5/sam_wdt.h
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_SAMA5_SAM_WDT_H
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#define __ARCH_ARM_SRC_SAMA5_SAM_WDT_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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#include "chip/sam_wdt.h"
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#ifdef CONFIG_WATCHDOG
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C" {
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_wdtinitialize
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*
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* Description:
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* Initialize the WDT watchdog timer. The watchdog timer is intialized and
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* registered as 'devpath. The initial state of the watchdog time is
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* disabled.
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*
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* Input Parameters:
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* devpath - The full path to the watchdog. This should be of the form
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* /dev/watchdog0
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*
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* Returned Values:
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* None
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*
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****************************************************************************/
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#ifdef CONFIG_SAMA5_WDT
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void sam_wdtinitialize(FAR const char *devpath);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_WATCHDOG */
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#endif /* __ARCH_ARM_SRC_SAMA5_SAM_WDT_H */
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