diff --git a/arch/arm/dts/imx8mm-beacon-kit-u-boot.dtsi b/arch/arm/dts/imx8mm-beacon-kit-u-boot.dtsi
index e33e10a..c94b4ff 100644
--- a/arch/arm/dts/imx8mm-beacon-kit-u-boot.dtsi
+++ b/arch/arm/dts/imx8mm-beacon-kit-u-boot.dtsi
@@ -73,6 +73,10 @@
 	u-boot,dm-spl;
 };
 
+&pinctrl_wdog {
+	u-boot,dm-spl;
+};
+
 &uart2 {
 	u-boot,dm-spl;
 };
diff --git a/board/beacon/imx8mm/spl.c b/board/beacon/imx8mm/spl.c
index f92b4c3..a93cc93 100644
--- a/board/beacon/imx8mm/spl.c
+++ b/board/beacon/imx8mm/spl.c
@@ -59,23 +59,6 @@
 }
 #endif
 
-#define WDOG_PAD_CTRL	(PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE)
-
-static iomux_v3_cfg_t const wdog_pads[] = {
-	IMX8MM_PAD_GPIO1_IO02_WDOG1_WDOG_B  | MUX_PAD_CTRL(WDOG_PAD_CTRL),
-};
-
-int board_early_init_f(void)
-{
-	struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
-
-	imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
-
-	set_wdog_reset(wdog);
-
-	return 0;
-}
-
 static int power_init_board(void)
 {
 	struct udevice *dev;
@@ -116,8 +99,6 @@
 
 	init_uart_clk(1);
 
-	board_early_init_f();
-
 	timer_init();
 
 	/* Clear the BSS. */