diff --git a/configs/imx6ullevk_defconfig b/configs/imx6ullevk_defconfig
index b507d1c0d6..662ef0270e 100644
--- a/configs/imx6ullevk_defconfig
+++ b/configs/imx6ullevk_defconfig
@@ -3,8 +3,8 @@ BR2_arm=y
 BR2_cortex_a7=y
 BR2_ARM_FPU_NEON_VFPV4=y
 
-# Linux headers same as kernel, a 6.1 series
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1=y
+# Linux headers same as kernel, a 6.6 series
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_6=y
 
 # system
 BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
@@ -12,17 +12,17 @@ BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
 # kernel
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
-BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.12"
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.6.4"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6ull-14x14-evk"
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="nxp/imx/imx6ull-14x14-evk"
 BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y
 
 # bootloader
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BOARDNAME="mx6ull_14x14_evk"
 BR2_TARGET_UBOOT_CUSTOM_VERSION=y
-BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2023.01"
+BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2023.10"
 BR2_TARGET_UBOOT_NEEDS_DTC=y
 BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
 BR2_TARGET_UBOOT_FORMAT_DTB_IMX=y
@@ -36,3 +36,12 @@ BR2_PACKAGE_HOST_MTOOLS=y
 BR2_ROOTFS_POST_IMAGE_SCRIPT="board/freescale/common/imx/post-image.sh"
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
+
+# NXP firmware package for SDMA Firmware
+BR2_PACKAGE_FREESCALE_IMX=y
+BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX6UL=y
+BR2_PACKAGE_FIRMWARE_IMX=y
+
+# For automatic kernel module loading
+BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
+