michaelh/zephyr
1
0
Fork 0
Code Releases Activity

soc: sam: Add poweroff implementation

Browse source 
This commit adds an implementation of poweroff, which first
uses SUPC to enable all defined wakeup sources (except for
sam4l), followed by entering backup mode.

Signed-off-by: Bjarki Arge Andreasen <bjarkix123@gmail.com>
This commit is contained in:
Bjarki Arge Andreasen 2023-10-20 00:26:08 +02:00 • committed by Carles Cufí
commit 9b21d4d366
9 changed files with 74 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
soc/arm/atmel_sam/common/CMakeLists.txt
View file

@ -4,6 +4,8 @@ zephyr_include_directories(.)
zephyr_library_sources_ifndef(CONFIG_SOC_SERIES_SAM4L soc_pmc.c)
zephyr_library_sources_ifndef(CONFIG_SOC_SERIES_SAM4L soc_gpio.c)
zephyr_library_sources_ifndef(CONFIG_SOC_SERIES_SAM4L soc_supc.c)
zephyr_library_sources_ifndef(CONFIG_SOC_SERIES_SAM4L soc_poweroff.c)
zephyr_library_sources_ifdef(CONFIG_SOC_SERIES_SAM4L soc_sam4l_pm.c)
zephyr_library_sources_ifdef(CONFIG_SOC_SERIES_SAM4L soc_sam4l_gpio.c)
zephyr_library_sources_ifdef(CONFIG_SOC_SERIES_SAM4L soc_sam4l_poweroff.c)

33
soc/arm/atmel_sam/common/soc_poweroff.c Normal file
View file

@ -0,0 +1,33 @@
/*
* Copyright (c) 2023 Bjarki Arge Andreasen
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/sys/poweroff.h>
#include <soc.h>
/*
* Poweroff will make the chip enter the backup low-power mode, which
* achieves the lowest possible power consumption. Wakeup from this mode
* requires enabling a wakeup source or input, or power cycling the device.
*/
static void soc_core_sleepdeep_enable(void)
{
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
}
static void soc_core_sleepdeep_wait(void)
{
__WFE();
__WFI();
}
void z_sys_poweroff(void)
{
soc_core_sleepdeep_enable();
soc_supc_core_voltage_regulator_off();
soc_core_sleepdeep_wait();
CODE_UNREACHABLE;
}

33
soc/arm/atmel_sam/common/soc_sam4l_poweroff.c Normal file
View file

@ -0,0 +1,33 @@
/*
* Copyright (c) 2023 Bjarki Arge Andreasen
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/sys/poweroff.h>
#include <soc.h>
/*
* Poweroff will make the chip enter the backup low-power mode, which
* achieves the lowest possible power consumption. Wakeup from this mode
* requires enabling a wakeup source or input, or power cycling the device.
*/
static void soc_core_sleepdeep_enable(void)
{
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
}
static void soc_core_sleepdeep_wait(void)
{
__WFE();
__WFI();
}
void z_sys_poweroff(void)
{
soc_core_sleepdeep_enable();
BPM->PMCON |= BPM_PMCON_BKUP;
soc_core_sleepdeep_wait();
CODE_UNREACHABLE;
}

1
soc/arm/atmel_sam/sam3x/Kconfig.series
View file

@ -15,6 +15,7 @@ config SOC_SERIES_SAM3X
select SOC_FAMILY_SAM
select PLATFORM_SPECIFIC_INIT
select ASF
select HAS_POWEROFF
help
Enable support for Atmel SAM3X Cortex-M3 microcontrollers.
Part No.: SAM3X8E

1
soc/arm/atmel_sam/sam4e/Kconfig.series
View file

@ -15,6 +15,7 @@ config SOC_SERIES_SAM4E
select SOC_FAMILY_SAM
select PLATFORM_SPECIFIC_INIT
select ASF
select HAS_POWEROFF
help
Enable support for Atmel SAM4E Cortex-M4 microcontrollers.
Part No.: SAM4E16E, SAM4E16C, SAM4E8E, SAM4E8C

1
soc/arm/atmel_sam/sam4l/Kconfig.series
View file

@ -10,6 +10,7 @@ config SOC_SERIES_SAM4L
select SOC_FAMILY_SAM
select PLATFORM_SPECIFIC_INIT
select ASF
select HAS_POWEROFF
help
Enable support for Atmel SAM4L Cortex-M4 microcontrollers.
Part No.: SAM4LS8C, SAM4LS8B, SAM4LS8A, SAM4LS4C, SAM4LS4B,

1
soc/arm/atmel_sam/sam4s/Kconfig.series
View file

@ -14,6 +14,7 @@ config SOC_SERIES_SAM4S
select SOC_FAMILY_SAM
select PLATFORM_SPECIFIC_INIT
select ASF
select HAS_POWEROFF
help
Enable support for Atmel SAM4S Cortex-M4 microcontrollers.
Part No.: SAM4S16C, SAM4S16B, SAM4S8C, SAM4S8B,

1
soc/arm/atmel_sam/same70/Kconfig.series
View file

@ -16,6 +16,7 @@ config SOC_SERIES_SAME70
select ASF
select HAS_SWO
select XIP
select HAS_POWEROFF
help
Enable support for Atmel SAM E70 ARM Cortex-M7 Microcontrollers.
Part No.: SAME70J19, SAME70J20, SAME70J21, SAME70N19, SAME70N20,

1
soc/arm/atmel_sam/samv71/Kconfig.series
View file

@ -16,6 +16,7 @@ config SOC_SERIES_SAMV71
select ASF
select HAS_SWO
select XIP
select HAS_POWEROFF
help
Enable support for Atmel SAM V71 ARM Cortex-M7 Microcontrollers.
Part No.: SAMV71J19, SAMV71J20, SAMV71J21, SAMV71N19, SAMV71N20,