diff --git a/.checkpackageignore b/.checkpackageignore
index 10662bb11e..9335dca0e7 100644
--- a/.checkpackageignore
+++ b/.checkpackageignore
@@ -151,7 +151,6 @@ configs/engicam_imx6qdl_icore_rqs_defconfig lib_defconfig.ForceCheckHash
 configs/engicam_imx6ul_geam_defconfig lib_defconfig.ForceCheckHash
 configs/engicam_imx6ul_isiot_defconfig lib_defconfig.ForceCheckHash
 configs/freescale_imx28evk_defconfig lib_defconfig.ForceCheckHash
-configs/freescale_imx6ullevk_defconfig lib_defconfig.ForceCheckHash
 configs/freescale_imx93evk_defconfig lib_defconfig.ForceCheckHash
 configs/freescale_p1025twr_defconfig lib_defconfig.ForceCheckHash
 configs/freescale_t1040d4rdb_defconfig lib_defconfig.ForceCheckHash
diff --git a/board/freescale/imx6ullevk/patches/linux-headers/linux-headers.hash b/board/freescale/imx6ullevk/patches/linux-headers/linux-headers.hash
new file mode 120000
index 0000000000..5808d92afe
--- /dev/null
+++ b/board/freescale/imx6ullevk/patches/linux-headers/linux-headers.hash
@@ -0,0 +1 @@
+../linux/linux.hash
\ No newline at end of file
diff --git a/board/freescale/imx6ullevk/patches/linux/linux.hash b/board/freescale/imx6ullevk/patches/linux/linux.hash
new file mode 100644
index 0000000000..3c4223976b
--- /dev/null
+++ b/board/freescale/imx6ullevk/patches/linux/linux.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  c70adedadce88f8685cb26d9703b930292c1349138e2c55ed9b4cd6e277de3bd  linux-imx-lf-6.6.23-2.0.0.tar.gz
diff --git a/board/freescale/imx6ullevk/patches/uboot/uboot.hash b/board/freescale/imx6ullevk/patches/uboot/uboot.hash
new file mode 100644
index 0000000000..4e0d729ca0
--- /dev/null
+++ b/board/freescale/imx6ullevk/patches/uboot/uboot.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  179b6531ef1d4ce681d139741ac7b4144220c90b7223297df28b61e98e8d37fc  uboot-imx-lf-6.6.23-2.0.0.tar.gz
diff --git a/configs/freescale_imx6ullevk_defconfig b/configs/freescale_imx6ullevk_defconfig
index fd4254edbf..e29a9898fc 100644
--- a/configs/freescale_imx6ullevk_defconfig
+++ b/configs/freescale_imx6ullevk_defconfig
@@ -1,16 +1,18 @@
 BR2_arm=y
 BR2_cortex_a7=y
-BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_1=y
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_6_6=y
+BR2_GLOBAL_PATCH_DIR="board/freescale/imx6ullevk/patches"
+BR2_DOWNLOAD_FORCE_CHECK_HASHES=y
 BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
 BR2_TARGET_GENERIC_GETTY_PORT="ttymxc0"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="board/freescale/common/imx/post-image.sh"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,nxp-imx,linux-imx,lf-6.1.36-2.1.0)/linux-imx-lf-6.1.36-2.1.0.tar.gz"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="$(call github,nxp-imx,linux-imx,lf-6.6.23-2.0.0)/linux-imx-lf-6.6.23-2.0.0.tar.gz"
 BR2_LINUX_KERNEL_DEFCONFIG="imx_v7"
 BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/freescale/imx6ullevk/linux_sdma.fragment"
 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
 BR2_PACKAGE_FREESCALE_IMX=y
 BR2_PACKAGE_FREESCALE_IMX_PLATFORM_IMX6UL=y
@@ -20,7 +22,7 @@ BR2_TARGET_ROOTFS_EXT2_4=y
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BOARDNAME="mx6ull_14x14_evk"
 BR2_TARGET_UBOOT_CUSTOM_TARBALL=y
-BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="$(call github,nxp-imx,uboot-imx,lf-6.1.36-2.1.0)/uboot-imx-lf-6.1.36-2.1.0.tar.gz"
+BR2_TARGET_UBOOT_CUSTOM_TARBALL_LOCATION="$(call github,nxp-imx,uboot-imx,lf-6.6.23-2.0.0)/uboot-imx-lf-6.6.23-2.0.0.tar.gz"
 BR2_TARGET_UBOOT_NEEDS_DTC=y
 BR2_TARGET_UBOOT_NEEDS_OPENSSL=y
 BR2_TARGET_UBOOT_FORMAT_IMX=y