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watchdog: don't autostart watchdog on STM32MP architecture

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On STM32MP reference boards, the watchdog is started by a previous
boot stage (e.g. bootrom or secure OS), so the config flag
WATCHDOG_AUTOSTART is not required.
It's preferable to rely on the DT properties "u-boot,autostart" or
"u-boot,noautostart", if needed.

For backward compatibility on defconfigs that are based on SPL,
thus cannot rely on a previous boot stage for starting the
watchdog, enable WATCHDOG_AUTOSTART in their respective defconfig.
The change in stm32mp15_dhsom.config is propagated to:
- configs/stm32mp15_dhcom_basic.config
- configs/stm32mp15_dhcor_basic.config
and then to:
- stm32mp15_dhcom_basic_defconfig
- stm32mp15_dhcom_drc02_basic_defconfig
- stm32mp15_dhcom_pdk2_basic_defconfig
- stm32mp15_dhcom_picoitx_basic_defconfig
- stm32mp15_dhcor_avenger96_basic_defconfig
- stm32mp15_dhcor_basic_defconfig
- stm32mp15_dhcor_drc_compact_basic_defconfig
- stm32mp15_dhcor_testbench_basic_defconfig

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
This commit is contained in:
Patrice Chotard 2025-05-23 11:46:58 +02:00 committed by Stefan Roese
parent 4bef031d69
commit 7e1e22c70d
7 changed files with 7 additions and 0 deletions
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1
configs/stm32mp15-icore-stm32mp1-ctouch2_defconfig
View File

@ -89,6 +89,7 @@ CONFIG_DM_RTC=y
CONFIG_RTC_STM32=y
CONFIG_SERIAL_RX_BUFFER=y
CONFIG_SYSRESET_SYSCON=y
CONFIG_WATCHDOG_AUTOSTART=y
CONFIG_WDT=y
CONFIG_WDT_STM32MP=y
# CONFIG_BINMAN_FDT is not set

1
configs/stm32mp15-icore-stm32mp1-edimm2.2_defconfig
View File

@ -89,6 +89,7 @@ CONFIG_DM_RTC=y
CONFIG_RTC_STM32=y
CONFIG_SERIAL_RX_BUFFER=y
CONFIG_SYSRESET_SYSCON=y
CONFIG_WATCHDOG_AUTOSTART=y
CONFIG_WDT=y
CONFIG_WDT_STM32MP=y
# CONFIG_BINMAN_FDT is not set

1
configs/stm32mp15-microgea-stm32mp1-microdev2-of7_defconfig
View File

@ -89,6 +89,7 @@ CONFIG_DM_RTC=y
CONFIG_RTC_STM32=y
CONFIG_SERIAL_RX_BUFFER=y
CONFIG_SYSRESET_SYSCON=y
CONFIG_WATCHDOG_AUTOSTART=y
CONFIG_WDT=y
CONFIG_WDT_STM32MP=y
# CONFIG_BINMAN_FDT is not set

1
configs/stm32mp15-microgea-stm32mp1-microdev2_defconfig
View File

@ -89,6 +89,7 @@ CONFIG_DM_RTC=y
CONFIG_RTC_STM32=y
CONFIG_SERIAL_RX_BUFFER=y
CONFIG_SYSRESET_SYSCON=y
CONFIG_WATCHDOG_AUTOSTART=y
CONFIG_WDT=y
CONFIG_WDT_STM32MP=y
# CONFIG_BINMAN_FDT is not set

1
configs/stm32mp15_basic_defconfig
View File

@ -191,6 +191,7 @@ CONFIG_SPLASH_SCREEN_ALIGN=y
CONFIG_BMP_16BPP=y
CONFIG_BMP_24BPP=y
CONFIG_BMP_32BPP=y
CONFIG_WATCHDOG_AUTOSTART=y
CONFIG_WDT=y
CONFIG_WDT_STM32MP=y
# CONFIG_BINMAN_FDT is not set

1
configs/stm32mp15_dhsom.config
View File

@ -76,3 +76,4 @@ CONFIG_PREBOOT="run dh_preboot"
CONFIG_SYS_SPI_U_BOOT_OFFS=0x80000
CONFIG_TARGET_DH_STM32MP1_PDK2=y
CONFIG_USE_SERVERIP=y
CONFIG_WATCHDOG_AUTOSTART=y

1
drivers/watchdog/Kconfig
View File

@ -15,6 +15,7 @@ config WATCHDOG_AUTOSTART
bool "Automatically start watchdog timer"
depends on WDT
default n if ARCH_SUNXI
default n if ARCH_STM32MP
default y
help
Automatically start watchdog timer and start servicing it during