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soc: arm: adi: max32: Add power management feature

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This commit add power.c file that provides device goes to low power modes

Signed-off-by: Sadik Ozer <sadik.ozer@analog.com>
This commit is contained in:
Sadik Ozer 2024-03-18 20:54:47 +03:00 • committed by Benjamin Cabé
commit 9b7927f2a3
3 changed files with 78 additions and 0 deletions
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1
soc/adi/max32/CMakeLists.txt
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@ -5,6 +5,7 @@ zephyr_include_directories(${ZEPHYR_BASE}/drivers)
zephyr_include_directories(common)
zephyr_sources(soc.c)
zephyr_library_sources_ifdef(CONFIG_PM power.c)
zephyr_linker_sources_ifdef(CONFIG_SOC_FLASH_MAX32 SECTIONS flash.ld)
if(CONFIG_SOC_MAX78000 OR CONFIG_SOC_MAX78002)
zephyr_linker_sources(SECTIONS max7800x.ld)

1
soc/adi/max32/Kconfig
View file

@ -26,6 +26,7 @@ config SOC_FAMILY_MAX32_M4
select CPU_CORTEX_M_HAS_SYSTICK
select CPU_HAS_ARM_MPU
select CPU_HAS_FPU
select HAS_PM
config SOC_MAX32655_M4
select MAX32_HAS_SECONDARY_RV32

76
soc/adi/max32/power.c Normal file
View file

@ -0,0 +1,76 @@
/*
* Copyright (c) 2024 Analog Devices, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <zephyr/device.h>
#include <zephyr/pm/pm.h>
#include <mxc_device.h>
#include <wrap_max32_lp.h>
#include <zephyr/logging/log.h>
#define LOG_LEVEL CONFIG_SOC_LOG_LEVEL
LOG_MODULE_REGISTER(soc);
void pm_state_set(enum pm_state state, uint8_t substate_id)
{
ARG_UNUSED(substate_id);
/* Set PRIMASK */
__disable_irq();
/* Set BASEPRI to 0 */
irq_unlock(0);
switch (state) {
case PM_STATE_RUNTIME_IDLE:
LOG_DBG("entering PM state runtime idle");
Wrap_MXC_LP_EnterLowPowerMode();
break;
case PM_STATE_SUSPEND_TO_IDLE:
LOG_DBG("entering PM state suspend to idle");
Wrap_MXC_LP_EnterMicroPowerMode();
break;
case PM_STATE_STANDBY:
LOG_DBG("entering PM state standby");
Wrap_MXC_LP_EnterStandbyMode();
break;
case PM_STATE_SOFT_OFF:
LOG_DBG("entering PM state powerdown");
Wrap_MXC_LP_EnterPowerDownMode();
/*Code not reach here */
default:
LOG_DBG("Unsupported power state %u", state);
return;
}
LOG_DBG("wakeup from sleep mode");
}
/* Handle SOC specific activity after Low Power Mode Exit */
void pm_state_exit_post_ops(enum pm_state state, uint8_t substate_id)
{
ARG_UNUSED(substate_id);
/* Set run mode config after wakeup */
switch (state) {
case PM_STATE_RUNTIME_IDLE:
LOG_DBG("exited PM state runtime idle");
break;
case PM_STATE_SUSPEND_TO_IDLE:
LOG_DBG("exited PM state suspend to idle");
break;
case PM_STATE_STANDBY:
/* For this state wait a little until RTC register being ready
* otherwise seems previous RTC value being read
*/
k_busy_wait(100);
LOG_DBG("exited PM state standby");
break;
default:
break;
}
/* Clear PRIMASK after wakeup */
__enable_irq();
}