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It works now with the changes below: > >diff --git a/arch/arm/dts/imx6ul-14x14-evk.dtsi >b/arch/arm/dts/imx6ul-14x14-evk.dtsi >index 1a18c41ce385..0239a153080c 100644 >--- a/arch/arm/dts/imx6ul-14x14-evk.dtsi >+++ b/arch/arm/dts/imx6ul-14x14-evk.dtsi >@@ -384,7 +384,6 @@ > &wdog1 { > pinctrl-names = "default"; > pinctrl-0 = <&pinctrl_wdog>; >- fsl,ext-reset-output; Without this, there is no wdog output to reset pmic, so only SoC reset, the value will be retained for bootcount. Regards Peng > }; > > &iomuxc { >diff --git a/configs/mx6ul_14x14_evk_defconfig >b/configs/mx6ul_14x14_evk_defconfig >index 0e35e5e6af57..4a6a35346759 100644 >--- a/configs/mx6ul_14x14_evk_defconfig >+++ b/configs/mx6ul_14x14_evk_defconfig >@@ -110,3 +110,7 @@ CONFIG_SPLASH_SCREEN=y > CONFIG_SPLASH_SCREEN_ALIGN=y > CONFIG_BMP_16BPP=y > CONFIG_IMX_WATCHDOG=y >+CONFIG_BOOTCOUNT_BOOTLIMIT=3 >+CONFIG_SYS_BOOTCOUNT_ADDR=0x20d8024 >+CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y >+CONFIG_BOOTCOUNT_LIMIT=y > >Thanks, > >Fabio Estevam