From: Jan Kiszka jan.kiszka@siemens.com
Allows run-time control over watchdog auto-start and the timeout via setting the environment variable watchdog_timeout_ms. A value of zero means "do not start". Use CONFIG_WATCHDOG_TIMEOUT_MSECS as initial value and this to zero by default. Users can then enable the watchdog once the use and OS which picks it up during boot.
Signed-off-by: Jan Kiszka jan.kiszka@siemens.com --- board/siemens/iot2050/iot2050.env | 8 ++++++++ configs/iot2050_pg1_defconfig | 2 ++ configs/iot2050_pg2_defconfig | 2 ++ 3 files changed, 12 insertions(+)
diff --git a/board/siemens/iot2050/iot2050.env b/board/siemens/iot2050/iot2050.env index 4bd93f0b2f4..02958798b49 100644 --- a/board/siemens/iot2050/iot2050.env +++ b/board/siemens/iot2050/iot2050.env @@ -7,3 +7,11 @@ */
usb_pgood_delay=900 + +watchdog_timeout_ms=CONFIG_WATCHDOG_TIMEOUT_MSECS +start_watchdog= + if test ${watchdog_timeout_ms} -gt 0; then + wdt dev watchdog@40610000; + wdt start ${watchdog_timeout_ms}; + echo Watchdog started, timeout ${watchdog_timeout_ms} ms; + fi diff --git a/configs/iot2050_pg1_defconfig b/configs/iot2050_pg1_defconfig index 2f7a9d86794..258ad4c87e5 100644 --- a/configs/iot2050_pg1_defconfig +++ b/configs/iot2050_pg1_defconfig @@ -32,6 +32,7 @@ CONFIG_OF_BOARD_SETUP=y CONFIG_BOOTSTAGE=y CONFIG_SHOW_BOOT_PROGRESS=y CONFIG_SPL_SHOW_BOOT_PROGRESS=y +CONFIG_BOOTCOMMAND="run start_watchdog; run distro_bootcmd" CONFIG_CONSOLE_MUX=y # CONFIG_DISPLAY_CPUINFO is not set CONFIG_SPL_MAX_SIZE=0x58000 @@ -140,6 +141,7 @@ CONFIG_USB_DWC3_GENERIC=y CONFIG_USB_KEYBOARD=y # CONFIG_WATCHDOG is not set # CONFIG_WATCHDOG_AUTOSTART is not set +CONFIG_WATCHDOG_TIMEOUT_MSECS=0 CONFIG_WDT=y CONFIG_WDT_K3_RTI=y CONFIG_WDT_K3_RTI_LOAD_FW=y diff --git a/configs/iot2050_pg2_defconfig b/configs/iot2050_pg2_defconfig index e3f82ad3065..2ff360b0623 100644 --- a/configs/iot2050_pg2_defconfig +++ b/configs/iot2050_pg2_defconfig @@ -34,6 +34,7 @@ CONFIG_OF_BOARD_SETUP=y CONFIG_BOOTSTAGE=y CONFIG_SHOW_BOOT_PROGRESS=y CONFIG_SPL_SHOW_BOOT_PROGRESS=y +CONFIG_BOOTCOMMAND="run start_watchdog; run distro_bootcmd" CONFIG_CONSOLE_MUX=y # CONFIG_DISPLAY_CPUINFO is not set CONFIG_SPL_MAX_SIZE=0x58000 @@ -144,6 +145,7 @@ CONFIG_USB_DWC3_GENERIC=y CONFIG_USB_KEYBOARD=y # CONFIG_WATCHDOG is not set # CONFIG_WATCHDOG_AUTOSTART is not set +CONFIG_WATCHDOG_TIMEOUT_MSECS=0 CONFIG_WDT=y CONFIG_WDT_K3_RTI=y CONFIG_WDT_K3_RTI_LOAD_FW=y