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iot2050: Add watchdog start to bootcmd

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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>
This commit is contained in:
Jan Kiszka 2023-02-28 19:19:13 +01:00 committed by Tom Rini
parent d5436aad14
commit 4578095f1b
3 changed files with 12 additions and 0 deletions
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8
board/siemens/iot2050/iot2050.env
View file

@ -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

2
configs/iot2050_pg1_defconfig
View file

@ -32,6 +32,7 @@ CONFIG_DISTRO_DEFAULTS=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

2
configs/iot2050_pg2_defconfig
View file

@ -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