diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index dd393b5..261f586 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -55,6 +55,8 @@
 	/* Enable TZASC and lock setting */
 	setbits_le32(&gpr->gpr[10], GPR_TZASC_EN);
 	setbits_le32(&gpr->gpr[10], GPR_TZASC_EN_LOCK);
+	if (IS_ENABLED(CONFIG_IMX8MM))
+		setbits_le32(&gpr->gpr[10], BIT(1));
 }
 
 void set_wdog_reset(struct wdog_regs *wdog)