diff --git a/configs/nitrogen8m_3g_defconfig b/configs/nitrogen8m_3g_defconfig
index 4d4a779bb48fe5845463f36c83f4d535d4d912ee..00a2fa67d4f773fa1b7941e7702be1173f2b0ecf 100644
--- a/configs/nitrogen8m_3g_defconfig
+++ b/configs/nitrogen8m_3g_defconfig
@@ -18,7 +18,8 @@ CONFIG_DISTRO_DEFAULTS=y
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_FIT=y
 CONFIG_SPL_LOAD_FIT=y
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg,DDR_MB=3072,DEFCONFIG=\"nitrogen8m_3g\""
+CONFIG_SPL_FIT_GENERATOR="arch/arm/mach-imx/mkimage_fit_atf.sh"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/imx8m/imximage.cfg,DDR_MB=3072,DEFCONFIG=\"nitrogen8m_3g\""
 CONFIG_SPL_BOARD_INIT=y
 CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_SPL_POWER_SUPPORT=y
diff --git a/configs/nitrogen8m_4g_defconfig b/configs/nitrogen8m_4g_defconfig
index 4f0edd35338792cd596300654c68148f487f6ea5..b4f5338cad76c7b78958a8a70e4a0227dbed4963 100644
--- a/configs/nitrogen8m_4g_defconfig
+++ b/configs/nitrogen8m_4g_defconfig
@@ -18,7 +18,8 @@ CONFIG_DISTRO_DEFAULTS=y
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_FIT=y
 CONFIG_SPL_LOAD_FIT=y
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg,DDR_MB=4096,DEFCONFIG=\"nitrogen8m_4g\""
+CONFIG_SPL_FIT_GENERATOR="arch/arm/mach-imx/mkimage_fit_atf.sh"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/imx8m/imximage.cfg,DDR_MB=4096,DEFCONFIG=\"nitrogen8m_4g\""
 CONFIG_SPL_BOARD_INIT=y
 CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_SPL_POWER_SUPPORT=y
diff --git a/configs/nitrogen8m_defconfig b/configs/nitrogen8m_defconfig
index d23afc7c8f67dbae84cd1dd603b6ab1487b3a0de..62a049aa2921c247dafe2a3b788f3a4a5476fc6f 100644
--- a/configs/nitrogen8m_defconfig
+++ b/configs/nitrogen8m_defconfig
@@ -18,7 +18,8 @@ CONFIG_DISTRO_DEFAULTS=y
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_FIT=y
 CONFIG_SPL_LOAD_FIT=y
-CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg,DDR_MB=2048,DEFCONFIG=\"nitrogen8m\""
+CONFIG_SPL_FIT_GENERATOR="arch/arm/mach-imx/mkimage_fit_atf.sh"
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/imx8m/imximage.cfg,DDR_MB=2048,DEFCONFIG=\"nitrogen8m\""
 CONFIG_SPL_BOARD_INIT=y
 CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_SPL_POWER_SUPPORT=y