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drivers: hwinfo: modification into hwinfo_get_reset_cause()

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add retrieve flag SB into hwinfo_get_reset_cause()
add Clear flag SB into clear_reset_cause()

Signed-off-by: Marc Desvaux <marc.desvaux-ext@st.com>
This commit is contained in:
Marc Desvaux 2023-03-31 16:02:54 +02:00 committed by Carles Cufí
parent cbd9e2172f
commit 3392eb6af3
1 changed files with 35 additions and 0 deletions
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35
drivers/hwinfo/hwinfo_stm32.c
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@ -10,6 +10,7 @@
#if defined(CONFIG_SOC_SERIES_STM32H5X)
#include <stm32_ll_icache.h>
#endif /* CONFIG_SOC_SERIES_STM32H5X */
#include <stm32_ll_pwr.h>
#include <zephyr/drivers/hwinfo.h>
#include <string.h>
#include <zephyr/sys/byteorder.h>
@ -113,6 +114,28 @@ int z_impl_hwinfo_get_reset_cause(uint32_t *cause)
}
#endif
#if defined(CONFIG_SOC_SERIES_STM32H7X) && defined(CORE_CM4)
if (LL_PWR_CPU2_IsActiveFlag_SB()) {
flags |= RESET_LOW_POWER_WAKE;
}
#elif defined(CONFIG_SOC_SERIES_STM32H7X) && defined(CORE_CM7)
if (LL_PWR_CPU_IsActiveFlag_SB()) {
flags |= RESET_LOW_POWER_WAKE;
}
#elif defined(CONFIG_SOC_SERIES_STM32MP1X)
if (LL_PWR_MCU_IsActiveFlag_SB()) {
flags |= RESET_LOW_POWER_WAKE;
}
#elif defined(CONFIG_SOC_SERIES_STM32WLX) || defined(CONFIG_SOC_SERIES_STM32WBX)
if (LL_PWR_IsActiveFlag_C1SB()) {
flags |= RESET_LOW_POWER_WAKE;
}
#elif defined(PWR_FLAG_SB)
if (LL_PWR_IsActiveFlag_SB()) {
flags |= RESET_LOW_POWER_WAKE;
}
#endif /* PWR_FLAG_SB */
*cause = flags;
return 0;
@ -122,6 +145,18 @@ int z_impl_hwinfo_clear_reset_cause(void)
{
LL_RCC_ClearResetFlags();
#if defined(CONFIG_SOC_SERIES_STM32H7X) && defined(CORE_CM4)
LL_PWR_ClearFlag_CPU2();
#elif defined(CONFIG_SOC_SERIES_STM32H7X) && defined(CORE_CM7)
LL_PWR_ClearFlag_CPU();
#elif defined(CONFIG_SOC_SERIES_STM32MP1X)
LL_PWR_ClearFlag_MCU();
#elif defined(CONFIG_SOC_SERIES_STM32WLX) || defined(CONFIG_SOC_SERIES_STM32WBX)
LL_PWR_ClearFlag_C1STOP_C1STB();
#elif defined(PWR_FLAG_SB)
LL_PWR_ClearFlag_SB();
#endif /* PWR_FLAG_SB */
return 0;
}