sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

arch/xtensa/src/esp32: Add a way to retrieve reset cause.

Browse Source 
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
This commit is contained in:
Abdelatif Guettouche 2020-09-29 15:50:12 +01:00 committed by Alan Carvalho de Assis
parent c20c8c6dd5
commit caa945cb24
4 changed files with 127 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/xtensa/src/esp32/Make.defs
View File

@ -53,7 +53,7 @@ CMN_CSRCS += xtensa_puts.c xtensa_releasepending.c xtensa_releasestack.c
CMN_CSRCS += xtensa_reprioritizertr.c xtensa_schedsigaction.c
CMN_CSRCS += xtensa_sigdeliver.c xtensa_stackframe.c xtensa_udelay.c
CMN_CSRCS += xtensa_unblocktask.c xtensa_usestack.c
CMN_CSRCS += esp32_systemreset.c
CMN_CSRCS += esp32_systemreset.c esp32_resetcause.c
# Configuration-dependent common XTENSA files

71
arch/xtensa/src/esp32/esp32_resetcause.c Normal file
View File

@ -0,0 +1,71 @@
/****************************************************************************
* arch/xtensa/src/esp32/esp32_resetcause.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 <stdint.h>
#include <nuttx/arch.h>
#include <nuttx/board.h>
#include "xtensa.h"
#include "hardware/esp32_rtccntl.h"
#include "esp32_resetcause.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp32_resetcause
*
* Description:
* Get the cause of the last reset of the given CPU
*
****************************************************************************/
enum esp32_resetcause_e esp32_resetcause(int cpu)
{
uint32_t regmask;
uint32_t regshift;
uint32_t regval;
regval = getreg32(RTC_CNTL_RESET_STATE_REG);
#ifdef CONFIG_SMP
if (cpu != 0)
{
regmask = RTC_CNTL_RESET_CAUSE_APPCPU_M;
regshift = RTC_CNTL_RESET_CAUSE_APPCPU_S;
}
else
#endif
{
regmask = RTC_CNTL_RESET_CAUSE_PROCPU_M;
regshift = RTC_CNTL_RESET_CAUSE_PROCPU_S;
}
return (regval & regmask) >> regshift;
}

54
arch/xtensa/src/esp32/esp32_resetcause.h Normal file
View File

@ -0,0 +1,54 @@
/****************************************************************************
* arch/xtensa/src/esp32/esp32_resetcause.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.
*
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
enum esp32_resetcause_e
{
ESP32_RESETCAUSE_SYS_CHIPPOR = 0x01,
ESP32_RESETCAUSE_SYS_RWDTSR = 0x10,
ESP32_RESETCAUSE_SYS_BOR = 0x0f,
ESP32_RESETCAUSE_CORE_SOFT = 0x03,
ESP32_RESETCAUSE_CORE_DPSP = 0x05,
ESP32_RESETCAUSE_CORE_MWDT0 = 0x07,
ESP32_RESETCAUSE_CORE_MWDT1 = 0x08,
ESP32_RESETCAUSE_CORE_RWDT = 0x09,
ESP32_RESETCAUSE_CPU_MWDT0 = 0x0b,
ESP32_RESETCAUSE_CPU_SOFT = 0x0c,
ESP32_RESETCAUSE_CPU_RWDT = 0x0d,
ESP32_RESETCAUSE_CPU_PROCPU = 0x0e
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: esp32_resetcause
*
* Description:
* Get the cause of the last reset of the given CPU
*
****************************************************************************/
enum esp32_resetcause_e esp32_resetcause(int cpu);

2
boards/xtensa/esp32/esp32-core/src/esp32_reset.c
View File

@ -30,7 +30,7 @@
#ifdef CONFIG_BOARDCTL_RESET
/****************************************************************************
* Public functions
* Public Functions
****************************************************************************/
/****************************************************************************