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soc: arm: stm32h5: support SWO

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In case of stm32h5 both LL_DBGMCU_EnableTraceClock() and
LL_DBGMCU_SetTracePinAssignment() need to be called in order to properly
configure SWO output.

Select HAS_SWO, so that logging over SWO can be enabled.

Tested with ST's fork of openocd [1].

[1] https://github.com/STMicroelectronics/OpenOCD

Signed-off-by: Marcin Niestroj <m.niestroj@emb.dev>
This commit is contained in:
Marcin Niestroj 2023-08-03 20:50:07 +02:00 • committed by Maureen Helm
commit 19d7b26238
2 changed files with 4 additions and 2 deletions
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5
soc/arm/st_stm32/common/soc_config.c
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@ -27,9 +27,10 @@ static int st_stm32_common_config(void)
{ {
#ifdef CONFIG_LOG_BACKEND_SWO #ifdef CONFIG_LOG_BACKEND_SWO
/* Enable SWO trace asynchronous mode */ /* Enable SWO trace asynchronous mode */
#if defined(CONFIG_SOC_SERIES_STM32WBX) #if defined(CONFIG_SOC_SERIES_STM32WBX) || defined(CONFIG_SOC_SERIES_STM32H5X)
LL_DBGMCU_EnableTraceClock(); LL_DBGMCU_EnableTraceClock();
#else #endif
#if !defined(CONFIG_SOC_SERIES_STM32WBX)
LL_DBGMCU_SetTracePinAssignment(LL_DBGMCU_TRACE_ASYNCH); LL_DBGMCU_SetTracePinAssignment(LL_DBGMCU_TRACE_ASYNCH);
#endif #endif
#endif /* CONFIG_LOG_BACKEND_SWO */ #endif /* CONFIG_LOG_BACKEND_SWO */

1
soc/arm/st_stm32/stm32h5/Kconfig.series
View file

@ -15,5 +15,6 @@ config SOC_SERIES_STM32H5X
select ARMV8_M_DSP select ARMV8_M_DSP
select CPU_CORTEX_M_HAS_DWT select CPU_CORTEX_M_HAS_DWT
select HAS_STM32CUBE select HAS_STM32CUBE
select HAS_SWO
help help
Enable support for STM32H5 MCU series Enable support for STM32H5 MCU series