With CONFIG_SYSRESET_WATCHDOG=y the sandbox can use a watchdog based system reset. To make this work calling sandbox_wdt_expire_now() must lead to a reset.
Further we need CONFIG_WDT_GPIO=n to actually call the right watchdog. Adjust the watchdog test to avoid a build error. With this change we can test the development suggested in [PATCH 0/4] Improved sysreset/watchdog uclass integration https://lists.denx.de/pipermail/u-boot/2021-August/458656.html Heinrich Schuchardt (2): test/dm: fix watchdog test sandbox: fix sandbox_wdt_expire_now() drivers/watchdog/sandbox_wdt.c | 1 + test/dm/wdt.c | 4 ++++ 2 files changed, 5 insertions(+) -- 2.32.0