diff --git a/meta-raspberrypi/conf/machine/include/rpi-base.inc b/meta-raspberrypi/conf/machine/include/rpi-base.inc
index a2edf06..3e057ed 100644
--- a/meta-raspberrypi/conf/machine/include/rpi-base.inc
+++ b/meta-raspberrypi/conf/machine/include/rpi-base.inc
@@ -68,11 +68,13 @@
     bcm2710-rpi-2-b.dtb \
     bcm2710-rpi-3-b.dtb \
     bcm2710-rpi-3-b-plus.dtb \
+    bcm2710-rpi-zero-2.dtb \
     bcm2711-rpi-4-b.dtb \
     bcm2711-rpi-400.dtb \
     bcm2708-rpi-cm.dtb \
     bcm2710-rpi-cm3.dtb \
     bcm2711-rpi-cm4.dtb \
+    bcm2711-rpi-cm4s.dtb \
     "
 
 KERNEL_DEVICETREE ??= " \
@@ -133,12 +135,15 @@
 
     return ' '.join([transform(dtb) for dtb in alldtbs.split(' ') if dtb])
 
+RPI_EXTRA_IMAGE_BOOT_FILES ?= " \
+	${@bb.utils.contains('RPI_USE_U_BOOT', '1', \
+		'${KERNEL_IMAGETYPE} u-boot.bin;${SDIMG_KERNELIMAGE} boot.scr', \
+		'${KERNEL_IMAGETYPE};${SDIMG_KERNELIMAGE}', d)} \
+	"
 
 IMAGE_BOOT_FILES ?= "${BOOTFILES_DIR_NAME}/* \
                  ${@make_dtb_boot_files(d)} \
-                 ${@bb.utils.contains('RPI_USE_U_BOOT', '1', \
-                    '${KERNEL_IMAGETYPE} u-boot.bin;${SDIMG_KERNELIMAGE} boot.scr', \
-                    '${KERNEL_IMAGETYPE};${SDIMG_KERNELIMAGE}', d)} \
+                 ${RPI_EXTRA_IMAGE_BOOT_FILES} \
                  "
 do_image_wic[depends] += " \
     rpi-bootfiles:do_deploy \